CN113119000B - Clamping device - Google Patents
Clamping device Download PDFInfo
- Publication number
- CN113119000B CN113119000B CN202110443338.4A CN202110443338A CN113119000B CN 113119000 B CN113119000 B CN 113119000B CN 202110443338 A CN202110443338 A CN 202110443338A CN 113119000 B CN113119000 B CN 113119000B
- Authority
- CN
- China
- Prior art keywords
- shaped
- clamping
- balance arm
- cushion block
- workbench
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The invention discloses a clamping device, which comprises a clamping part, a supporting part and a pressing part, wherein the clamping part comprises a clamping head and a clamping head; the clamping part comprises a balance arm and a clamping head, the clamping head is hinged to one end of the balance arm and is pressed against a clamping surface of a workpiece, a first spherical groove is formed in the lower surface of the other end of the balance arm, and a second spherical groove is formed in the upper surface of the middle part of the balance arm; the supporting part is supported and fixed on the workbench and is hinged with the spherical surface of the balance arm through the first spherical groove; the pressing part is supported and fixed on the workbench, is pressed against the balance arm through the second spherical groove, and then presses and fixes the workpiece on the workbench through the clamping head. The clamping device enables the pressing surface of the clamp and the clamping surface of the workpiece to be in surface contact all the time, not only can the clamping force be guaranteed to reach a preset value, but also the pressing surface of the clamp and the clamping surface of the workpiece can be effectively protected from being scratched.
Description
Technical Field
The invention relates to the field of machining auxiliary tools, in particular to a clamping device.
Background
In the jig, a device for preventing displacement or vibration of the workpiece during machining is called a clamping device. The following requirements should be taken into account when designing the clamping device: the position of the workpiece is not changed in the clamping process; the clamping force can ensure that the workpiece does not generate displacement or vibration in the machining process and does not press the surface of the workpiece or cause deformation; the operation is convenient, the clamping action is rapid, and the productivity is improved; the structure is simple, the manufacture is easy, and the cost of the clamp is reduced; the self-locking can be realized, namely, the clamping state of the workpiece can be still kept after the original force is removed; safe operation and low labor intensity.
At present, the existing clamp for fixing the workpiece mainly adopts a pressing plate to press against a clamping surface of the workpiece, but because the clamping surface may be incompletely parallel to a bottom surface in the machining process, and in addition, the pressing plate may not be kept completely parallel to a workbench in the use process, the pressing surface of the pressing plate and the clamping surface of the workpiece have the condition of linear contact or even point contact, so that the friction surface is greatly reduced, the clamping force cannot be guaranteed to reach a preset value, and the clamping surface of the workpiece and the pressing surface of the clamp are also easily scratched.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a clamping device to solve the problems that the friction surface is greatly reduced and the clamping force cannot be ensured to reach the preset value because the pressing surface of the existing clamp and the clamping surface of the workpiece are in line contact or even point contact, and the clamping surface of the workpiece and the pressing surface of the clamp are easy to scratch.
In order to solve the technical problem, the technical scheme adopted by the invention is as follows:
a clamping device comprises a clamping part, a supporting part and a pressing part;
the clamping part comprises a balance arm and a clamping head, the clamping head is hinged to one end of the balance arm and is pressed against a clamping surface of a workpiece, a first spherical groove is formed in the lower surface of the other end of the balance arm, and a second spherical groove is formed in the upper surface of the middle part of the balance arm;
the supporting part is supported and fixed on the workbench and is hinged with the spherical surface of the balance arm through the first spherical groove;
the pressing part is supported and fixed on the workbench, is pressed against the balance arm through the second spherical groove, and then presses and fixes the workpiece on the workbench through the clamping head.
The supporting part supports the balance arm through the first spherical groove, the pressing part presses against the balance arm through the second spherical groove, the balance arm can keep any space angle, the end head of the balance arm is hinged to the clamping head, the inclination caused by the length direction of the balance arm can be eliminated, the clamping head is driven to press against the clamping surface of a workpiece, the condition that line contact or even point contact exists between the pressing surface of the clamp and the clamping surface of the workpiece is eliminated, the pressing surface of the clamp and the clamping surface of the workpiece are in face contact all the time, the clamping force can be guaranteed to reach a preset value, and the pressing surface of the clamp and the clamping surface of the workpiece can be effectively protected from being scratched.
Further, the clamping head includes cylinder and hinge, be equipped with the face of pressing on the cylinder, the both ends of cylinder all set firmly the hinge, two the hinge is coaxial, the both sides of the one end of balance arm have set firmly the mounting panel, the clamping head pass through both ends the hinge with the mounting panel is articulated. The cylinder is a cylinder and can be conveniently rotated.
In one embodiment, the supporting portion includes a first supporting pillar and a first ball head cushion block, a spherical surface of the first ball head cushion block is hinged to the first spherical groove spherical surface, a top end of the first supporting pillar is fixedly connected to the first ball head cushion block, and a bottom end of the first supporting pillar is fixedly supported on the workbench. First support column and first bulb cushion, structural strength is good.
Further, the bottom of first support column sets firmly first T-shaped piece, the montant of first T-shaped piece inserts the mounting groove on the workstation, the surface that is located montant one side of the horizontal pole of first T-shaped piece and workstation butt. The first T-shaped block is arranged to enable the first support column to be supported and stable.
In one embodiment, the supporting portion includes a second supporting column, a second ball head cushion block and an adjusting nut, a limiting through hole communicated with the first spherical groove is formed in the balance arm, the second supporting column is inserted into the limiting through hole, the bottom end of the second supporting column is supported and fixed on the workbench, a thread is arranged on the second supporting column, the second ball head cushion block is sleeved on the second supporting column, the spherical surface of the second ball head cushion block is hinged to the first spherical groove spherical surface, the adjusting nut is sleeved on the second supporting column in a threaded manner, and the upper end surface of the adjusting nut abuts against the second ball head cushion block. The supporting height of the second ball head cushion block can be adjusted through the adjusting nut, so that the balance arm is more convenient to mount and adjust.
Further, the supporting part further comprises a locking nut, the locking nut is sleeved on the second supporting column in a threaded mode, and the upper end face of the locking nut is abutted to the lower end face of the adjusting nut. Set up lock nut and make the support of second bulb cushion more stable, prevent that second bulb cushion is not hard up.
Further, the bottom of second support column sets firmly the second T-shaped piece, in the montant of second T-shaped piece inserted the mounting groove on the workstation, the surface and the workstation butt that are located montant one side of the horizontal pole of second T-shaped piece. And arranging a second T-shaped block to ensure that the second support column is supported stably.
In one embodiment, the pressing portion includes a T-shaped head screw, a third ball head cushion block and a first pressing nut, the T-shaped head of the T-shaped head screw is inverted in a T-shaped groove on the workbench, the balance arm is provided with an installation through hole communicated with the second spherical groove, the T-shaped head screw is inserted into the installation through hole, the third ball head cushion block is sleeved on the T-shaped head screw, the spherical surface of the third ball head cushion block is hinged to the spherical surface of the second spherical groove, the first pressing nut is sleeved on the T-shaped head screw in a threaded manner, and the lower end surface of the first pressing nut abuts against the third ball head cushion block. The balance arm can be pressed by rotating the first pressing nut.
Furthermore, the compressing portion comprises a first n-shaped support frame, a fourth ball head cushion block, a push rod and a second compression nut, the first n-shaped support frame crosses over the balance arm, T-shaped heads are arranged at the bottoms of two support legs of the first n-shaped support frame, the T-shaped heads of the first n-shaped support frame are arranged in T-shaped grooves in the workbench in an inverted mode, a guide through hole is formed in a cross beam of the first n-shaped support frame, the push rod penetrates through the guide through hole, a spherical surface of the fourth ball head cushion block is hinged to a spherical surface of the second spherical groove, the bottom end of the push rod is fixedly connected with the fourth ball head cushion block, threads are arranged on the push rod, the second compression nut is sleeved on the push rod in a threaded mode, and the upper end face of the second compression nut is abutted to the cross beam of the first n-shaped support frame. The ejector rod is provided with a square spanner position, the second compression nut is rotated to clamp the ejector rod through a spanner, the ejector rod is prevented from rotating along with the second compression nut when the second compression nut is rotated, and the first n-shaped support frame is adopted to improve the support strength of the compression part.
Furthermore, the compressing portion comprises a second n-shaped support frame, a fifth ball head cushion block and a driving screw rod, the second n-shaped support frame crosses over the balance arm, T-shaped heads are arranged at the bottoms of the two support legs of the second n-shaped support frame, the T-shaped heads of the second n-shaped support frame are inverted in a T-shaped groove in the workbench, a driving threaded hole is formed in a cross beam of the second n-shaped support frame, the driving screw rod is threaded in the driving threaded hole, the spherical surface of the fifth ball head cushion block is hinged to the spherical surface of the second spherical groove, the bottom end of the driving screw rod is connected with the fifth ball head cushion block in a rotating mode, and a wrench position prism is arranged on the driving screw rod. The ejector rod is provided with the wrench position prism, a wrench is conveniently adopted to clamp the driving screw and drive the driving screw to rotate, the driving screw is sleeved with the locknut in a threaded mode, and the end face of the locknut is abutted to the beam of the second n-shaped support frame.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that:
1. the supporting part supports the balance arm through the first spherical groove, the pressing part presses against the balance arm through the second spherical groove, and the end head of the balance arm is hinged to the clamping head, so that the condition that line contact or even point contact exists between the pressing surface of the clamp and the clamping surface of the workpiece is eliminated, the pressing surface of the clamp and the clamping surface of the workpiece are always in surface contact, the clamping force can be guaranteed to reach a preset value, and the pressing surface of the clamp and the clamping surface of the workpiece can be effectively protected from being scratched.
2. Simple structure is reliable, and the device is nimble, and the suitability is strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
FIG. 1 is a front view of one embodiment of the present invention;
FIG. 2 is a left side view of the embodiment of FIG. 1;
FIG. 3 isbase:Sub>A cross-sectional view A-A of the embodiment of FIG. 1;
FIG. 4 is a front view of one embodiment of the present invention;
FIG. 5 is a left side view of the embodiment of FIG. 4;
FIG. 6 is a cross-sectional view B-B of the embodiment of FIG. 5;
FIG. 7 is a front view of one embodiment of the present invention;
FIG. 8 is a cross-sectional view C-C of the embodiment of FIG. 7;
FIG. 9 is a front view of one embodiment of the present invention;
fig. 10 is a cross-sectional view D-D of the embodiment of fig. 9.
Reference numerals:
the clamping device comprises a clamping part 1, a balance arm 11, a first spherical groove 1a, a second spherical groove 1b, a limiting through hole 1c, an installation through hole 1d, a clamping head 12, a column 121, a hinge shaft 122, a pressing surface 121a and an installation plate 13;
the support part 2, a first support column 21, a first T-shaped block 211, a first ball head cushion block 22, a second support column 23, a second T-shaped block 231, a second ball head cushion block 24, an adjusting nut 25 and a locking nut 26;
the pressing part 3, a T-shaped head screw 31, a third ball head cushion block 32, a first pressing nut 33, a first n-shaped support frame 34, a guide through hole 34a, a fourth ball head cushion block 35, a mandril 36, a square wrench position 361, a second pressing nut 37, a second n-shaped support frame 38, a driving threaded hole 38a, a fifth ball head cushion block 39, a driving screw 30, a wrench position prism 301 and a locknut 302;
a work table 100;
a workpiece 200.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1, 4, 6, 7 and 9, the clamping device of the present embodiment includes a clamping portion 1, a supporting portion 2 and a pressing portion 3.
Referring to fig. 2 and 3, the clamping portion 1 includes a balance arm 11 and a clamping head 12, the clamping head 12 is hinged to one end of the balance arm 11, the clamping head 12 is pressed against the clamping surface of the workpiece 200, a first spherical groove 1a is formed in a lower surface of the other end of the balance arm 11, and a second spherical groove 1b is formed in an upper surface of a middle portion of the balance arm 11. Specifically, the clamping head 12 includes a cylinder 121 and a hinge shaft 122, the cylinder 121 is provided with a pressing surface 121a, the two ends of the cylinder 121 are respectively and fixedly provided with the hinge shaft 122, the two hinge shafts 122 are coaxial, the two sides of one end of the balance arm 11 are respectively and fixedly provided with the mounting plate 13, and the clamping head 12 is hinged to the mounting plate 13 through the hinge shafts 122 at the two ends. In this embodiment, the column 121 is a cylinder, which is convenient to rotate.
The supporting part 2 is supported and fixed on the workbench 100 and is spherically hinged with the balance arm 11 through a first spherical groove 1 a.
In an embodiment, referring to fig. 1 and fig. 2, the supporting portion 2 includes a first supporting pillar 21 and a first ball head block 22, a spherical surface of the first ball head block 22 is hinged to a spherical surface of the first spherical groove 1a, a top end of the first supporting pillar 21 is fixedly connected to the first ball head block 22, and a bottom end of the first supporting pillar 21 is supported and fixed on the worktable 100. The first support column 21 and the first ball head cushion block 22 have good structural strength. In this embodiment, the bottom of first support column 21 sets firmly first T-shaped piece 211, and first T-shaped piece 211 includes horizontal pole and montant, the middle part fixed connection of the one end of montant and horizontal pole, and during the montant of first T-shaped piece 211 inserted the mounting groove on the workstation 100, the surface that is located montant one side of the horizontal pole of first T-shaped piece 211 and workstation 100 butt, the surface of keeping away from montant one side of the horizontal pole of first T-shaped piece 211 and the bottom fixed connection of first support column 21. The first T-block 211 is provided so that the first support column 21 is supported stably.
In another embodiment, referring to fig. 4 to fig. 6 together, the supporting portion 2 includes a second supporting pillar 23, a second ball head cushion block 24 and an adjusting nut 25, the balance arm 11 is provided with a limiting through hole 1c communicated with the first ball surface groove 1a, the second supporting pillar 23 is inserted into the limiting through hole 1c, the bottom end of the second supporting pillar 23 is supported and fixed on the workbench 100, the second supporting pillar 23 is provided with a thread, the second ball head cushion block 24 is sleeved on the second supporting pillar 23, the spherical surface of the second ball head cushion block 24 is hinged to the spherical surface of the first ball surface groove 1a, the adjusting nut 25 is sleeved on the second supporting pillar 23 by the thread, and the upper end surface of the adjusting nut 25 is abutted to the second ball head cushion block 24. The supporting height of the second ball head cushion block 24 can be adjusted through the adjusting nut 25, so that the installation and adjustment of the balance arm 11 are more convenient. As a further optimized scheme, the support portion 2 further includes a lock nut 26, the lock nut 26 is sleeved on the second support column 23 in a threaded manner, and an upper end surface of the lock nut 26 abuts against a lower end surface of the adjusting nut 25. The provision of the lock nut 26 makes the support of the second ball head block 24 more stable, preventing the second ball head block 24 from becoming loose. Of course, the bottom of second support column 23 can also set firmly second T-shaped block 231, and second T-shaped block 231 includes horizontal pole and montant, the one end of montant and the middle part fixed connection of horizontal pole, and during the montant of second T-shaped block 231 inserted the mounting groove on the workstation 100, the surface that is located montant one side of the horizontal pole of second T-shaped block 231 and workstation 100 butt, the surface of keeping away from montant one side of the horizontal pole of second T-shaped block 231 and the bottom fixed connection of second support column 23. The second T-block 231 is provided so that the second support column 23 is supported stably.
The pressing portion 3 is supported and fixed on the table 100, and is pressed against the balance arm 11 through the second spherical groove 1b, so that the workpiece 200 is pressed and fixed on the table 100 through the clamping head 12.
In an embodiment, referring to fig. 1 to 6, the pressing portion 3 includes a T-shaped head screw 31, a third ball head cushion block 32 and a first pressing nut 33, the T-shaped head of the T-shaped head screw 31 is disposed upside down in a T-shaped groove on the worktable 100, the balance arm 11 is provided with a mounting through hole 1d communicated with the second ball surface groove 1b, the T-shaped head screw 31 is inserted into the mounting through hole 1d, the third ball head cushion block 32 is sleeved on the T-shaped head screw 31, the spherical surface of the third ball head cushion block 32 is hinged to the spherical surface of the second ball surface groove 1b, the first pressing nut 33 is sleeved on the T-shaped head screw 31 in a threaded manner, and the lower end surface of the first pressing nut 33 is abutted to the third ball head cushion block 32. The balance arm 11 can be pressed by turning the first pressing nut 33.
In another embodiment, referring to fig. 7 and 8, the pressing portion 3 includes a first n-shaped supporting frame 34, a fourth ball head cushion block 35, a top rod 36 and a second pressing nut 37, the first n-shaped supporting frame 34 spans across the balance arm 11, T-shaped heads are disposed at bottoms of two supporting legs of the first n-shaped supporting frame 34, the T-shaped head of the first n-shaped supporting frame 34 is disposed in a T-shaped groove on the workbench 100 in an inverted manner, a cross beam of the first n-shaped supporting frame 34 is provided with a guiding through hole 34a, the top rod 36 is disposed in the guiding through hole 34a in a penetrating manner, a spherical surface of the fourth ball head cushion block 35 is hinged to a spherical surface of the second spherical groove 1b, a bottom end of the top rod 36 is fixedly connected to the fourth ball head cushion block 35, a thread is disposed on the top rod 36, the second pressing nut 37 is disposed on the top rod 36 in a threaded manner, and an upper end surface of the second pressing nut 37 abuts against the cross beam of the first n-shaped supporting frame 34. The top rod 36 is provided with a square spanner position 361, the top rod 36 is clamped by a spanner when the second compression nut 37 is rotated, the top rod 36 is prevented from rotating along with the rotation when the second compression nut 37 is rotated, and the support strength of the compression part 3 can be improved by adopting the first n-shaped support frame 34.
In another embodiment, referring to fig. 9 and 10, the pressing portion 3 includes a second n-shaped supporting frame 38, a fifth ball-end pad 39 and a driving screw 30, the second n-shaped supporting frame 38 crosses the balance arm 11, T-shaped heads are disposed at bottoms of two supporting legs of the second n-shaped supporting frame 38, the T-shaped head of the second n-shaped supporting frame 38 is disposed in a T-shaped groove on the workbench 100 in an inverted manner, a driving threaded hole 38a is formed in a cross beam of the second n-shaped supporting frame 38, the driving screw 30 is threaded into the driving threaded hole 38a, a spherical surface of the fifth ball-end pad 39 is hinged to a spherical surface of the second spherical groove 1b, a bottom end of the driving screw 30 is rotatably connected to the fifth ball-end pad 39, and a wrench position prism 301 is disposed on the driving screw 30. The bottom end of the driving screw 30 is rotatably connected with the fifth ball head cushion block 39 through a rolling bearing, the ejector rod 36 is provided with a wrench position prism 301, in the embodiment, the wrench position prism 301 is a quadrangular prism or a hexagonal prism, the driving screw 30 is conveniently clamped and driven to rotate by a wrench, the driving screw 30 is sleeved with a locknut 302 through threads, the end surface of the locknut 302 is abutted to the beam of the second n-shaped support frame 38, and in the embodiment, the locknut 302 is arranged on two sides of the beam of the second n-shaped support frame 38.
Referring to fig. 1-10, the operation of the clamping device is as follows:
the pressing part 3 is loosened, the workpiece 200 is placed on the workbench 100, then the pressing surface 121a of the clamping head 12 is pressed on the clamping surface of the workpiece 200, the supporting part 2 supports the balance arm 11 through the first spherical groove 1a, the pressing part 3 presses the balance arm 11 through the second spherical groove 1b, the end of the balance arm 11 is hinged with the clamping head 12, so that the balance arm 11 can keep any spatial angle, the inclination caused by the length direction of the balance arm 11 and any inclination of the clamping surface of the workpiece 200 can be eliminated, and the workpiece 200 can be clamped by pre-tightening the pressing part 3.
The clamping device eliminates the condition that the pressing surface 121a of the clamp is in line contact or even point contact with the clamping surface of the workpiece 200, so that the pressing surface 121a of the clamp is always in surface contact with the clamping surface of the workpiece 200, the clamping force can be ensured to reach a preset value, and the pressing surface 121a of the clamp and the clamping surface of the workpiece 200 can be effectively protected from being scratched; simple structure is reliable, and the device is nimble, and the suitability is strong, is worth relevant similar anchor clamps or instrument and uses widely.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (4)
1. A clamping device is used for clamping and fixing a workpiece on a workbench and is characterized by comprising a clamping part, a supporting part and a pressing part;
the clamping part comprises a balance arm and a clamping head, the clamping head is hinged with one end of the balance arm and is pressed against a clamping surface of a workpiece, a first spherical groove is formed in the lower surface of the other end of the balance arm, and a second spherical groove is formed in the upper surface of the middle part of the balance arm; the clamping head comprises a cylinder body and hinge shafts, a pressing surface is arranged on the cylinder body, the hinge shafts are fixedly arranged at two ends of the cylinder body and are coaxial, mounting plates are fixedly arranged at two sides of one end of the balance arm, and the clamping head is hinged with the mounting plates through the hinge shafts at two ends;
the supporting part is supported and fixed on the workbench and is hinged with the spherical surface of the balance arm through the first spherical groove; the supporting part comprises a first supporting column and a first ball head cushion block, the spherical surface of the first ball head cushion block is hinged with the spherical surface of the first spherical groove, the top end of the first supporting column is fixedly connected with the first ball head cushion block, and the bottom end of the first supporting column is supported and fixed on the workbench; the bottom end of the first support column is fixedly provided with a first T-shaped block, a vertical rod of the first T-shaped block is inserted into an installation groove in the workbench, and the surface of a cross rod of the first T-shaped block, which is positioned on one side of the vertical rod, is abutted against the workbench;
the pressing part is supported and fixed on the workbench, is pressed against the balance arm through the second spherical groove, and further presses and fixes the workpiece on the workbench through the clamping head; the pressing portion comprises a T-shaped head screw rod, a third ball head cushion block and a first pressing nut, a T-shaped head of the T-shaped head screw rod is arranged in a T-shaped groove in the workbench in an inverted mode, a mounting through hole communicated with the second spherical groove is formed in the balance arm, the T-shaped head screw rod is inserted into the mounting through hole, the third ball head cushion block is sleeved on the T-shaped head screw rod, the spherical surface of the third ball head cushion block is hinged to the spherical surface of the second spherical groove, the first pressing nut is sleeved on the T-shaped head screw rod in a threaded mode, and the lower end face of the first pressing nut is abutted to the third ball head cushion block.
2. A clamping device is used for clamping and fixing a workpiece on a workbench and is characterized by comprising a clamping part, a supporting part and a pressing part;
the clamping part comprises a balance arm and a clamping head, the clamping head is hinged to one end of the balance arm and is pressed against a clamping surface of a workpiece, a first spherical groove is formed in the lower surface of the other end of the balance arm, and a second spherical groove is formed in the upper surface of the middle part of the balance arm; the clamping head comprises a cylinder body and hinge shafts, a pressing surface is arranged on the cylinder body, the hinge shafts are fixedly arranged at two ends of the cylinder body and are coaxial, mounting plates are fixedly arranged at two sides of one end of the balance arm, and the clamping head is hinged with the mounting plates through the hinge shafts at two ends;
the supporting part is supported and fixed on the workbench and is hinged with the spherical surface of the balance arm through the first spherical groove; the supporting part comprises a second supporting column, a second ball head cushion block and an adjusting nut, a limiting through hole communicated with the first spherical groove is formed in the balance arm, the second supporting column is inserted into the limiting through hole, the bottom end of the second supporting column is supported and fixed on the workbench, a thread is arranged on the second supporting column, the second ball head cushion block is sleeved on the second supporting column, the spherical surface of the second ball head cushion block is hinged with the spherical surface of the first spherical groove, the adjusting nut is sleeved on the second supporting column in a threaded manner, and the upper end face of the adjusting nut is abutted to the second ball head cushion block; the supporting part further comprises a locking nut, the locking nut is sleeved on the second supporting column in a threaded manner, and the upper end face of the locking nut is abutted to the lower end face of the adjusting nut; a second T-shaped block is fixedly arranged at the bottom end of the second supporting column, a vertical rod of the second T-shaped block is inserted into the mounting groove in the workbench, and the surface of a cross rod of the second T-shaped block, which is positioned on one side of the vertical rod, is abutted against the workbench;
the pressing part is supported and fixed on the workbench, is pressed against the balance arm through the second spherical groove, and further presses and fixes the workpiece on the workbench through the clamping head; the pressing portion comprises a T-shaped head screw rod, a third ball head cushion block and a first pressing nut, a T-shaped head of the T-shaped head screw rod is arranged in a T-shaped groove in the workbench in an inverted mode, a mounting through hole communicated with the second spherical groove is formed in the balance arm, the T-shaped head screw rod is inserted into the mounting through hole, the third ball head cushion block is sleeved on the T-shaped head screw rod, the spherical surface of the third ball head cushion block is hinged to the spherical surface of the second spherical groove, the first pressing nut is sleeved on the T-shaped head screw rod in a threaded mode, and the lower end face of the first pressing nut is abutted to the third ball head cushion block.
3. The clamping device according to claim 1 or 2, wherein the pressing portion comprises a first n-shaped support frame, a fourth ball head cushion block, a top rod and a second pressing nut, the first n-shaped support frame spans across the balance arm, T-shaped heads are arranged at the bottoms of two support legs of the first n-shaped support frame, the T-shaped heads of the first n-shaped support frame are arranged in T-shaped grooves in the workbench in an inverted mode, a guide through hole is formed in a cross beam of the first n-shaped support frame, the top rod penetrates through the guide through hole, a spherical surface of the fourth ball head cushion block is hinged to a spherical surface of the second spherical groove, the bottom end of the top rod is fixedly connected with the fourth ball head cushion block, threads are arranged on the top rod, the second pressing nut is sleeved on the top rod in a threaded mode, and the upper end face of the second pressing nut abuts against the cross beam of the first n-shaped support frame.
4. The clamping device according to claim 1 or 2, wherein the compressing portion comprises a second n-shaped support frame, a fifth ball head cushion block and a driving screw, the second n-shaped support frame spans across the balance arm, T-shaped heads are arranged at the bottoms of two support legs of the second n-shaped support frame, the T-shaped heads of the second n-shaped support frame are arranged in a T-shaped groove in the workbench in an inverted mode, a cross beam of the second n-shaped support frame is provided with a driving threaded hole, the driving screw is threaded in the driving threaded hole, a spherical surface of the fifth ball head cushion block is hinged to a spherical surface of the second spherical groove, the bottom end of the driving screw is rotatably connected with the fifth ball head cushion block, and a wrench position prism is arranged on the driving screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110443338.4A CN113119000B (en) | 2021-04-23 | 2021-04-23 | Clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110443338.4A CN113119000B (en) | 2021-04-23 | 2021-04-23 | Clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113119000A CN113119000A (en) | 2021-07-16 |
| CN113119000B true CN113119000B (en) | 2022-11-01 |
Family
ID=76779691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110443338.4A Active CN113119000B (en) | 2021-04-23 | 2021-04-23 | Clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113119000B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357819A (en) * | 2011-09-30 | 2012-02-22 | 中国三冶集团有限公司电气安装工程公司 | Device and method for fixing workpiece for T-shaped slot workbench |
| KR101352353B1 (en) * | 2012-08-31 | 2014-01-16 | 주식회사 힘스 | Clamping apparatus |
| CN105922168A (en) * | 2016-06-30 | 2016-09-07 | 朱海杰 | Workpiece clamping device |
| CN108620919A (en) * | 2018-04-13 | 2018-10-09 | 湖南工程学院 | Floating press mechanism for clamping workpiece in mechanical processing |
| CN210967973U (en) * | 2019-10-18 | 2020-07-10 | 湖北省丹江口丹传汽车传动轴有限公司 | Centering clamping fixture with downward pressure and capable of being finely adjusted |
| CN111451695A (en) * | 2020-05-14 | 2020-07-28 | 厦门雅焊达自动化科技有限公司 | Angle-adjustable compactor |
| CN112372553A (en) * | 2020-12-20 | 2021-02-19 | 十堰精密新动力科技股份有限公司 | Self-adaptive pressing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1391033B1 (en) * | 2008-07-17 | 2011-10-27 | Ansaldo Energia Spa | BLOCK LOCKING OF A VINE, IN PARTICULAR TO HOLD A TURBINE PALLET |
| CN109129262B (en) * | 2018-11-09 | 2024-02-20 | 沈佳语 | Clamping mechanism capable of automatically positive pressure and adjusting pressure |
-
2021
- 2021-04-23 CN CN202110443338.4A patent/CN113119000B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357819A (en) * | 2011-09-30 | 2012-02-22 | 中国三冶集团有限公司电气安装工程公司 | Device and method for fixing workpiece for T-shaped slot workbench |
| KR101352353B1 (en) * | 2012-08-31 | 2014-01-16 | 주식회사 힘스 | Clamping apparatus |
| CN105922168A (en) * | 2016-06-30 | 2016-09-07 | 朱海杰 | Workpiece clamping device |
| CN108620919A (en) * | 2018-04-13 | 2018-10-09 | 湖南工程学院 | Floating press mechanism for clamping workpiece in mechanical processing |
| CN210967973U (en) * | 2019-10-18 | 2020-07-10 | 湖北省丹江口丹传汽车传动轴有限公司 | Centering clamping fixture with downward pressure and capable of being finely adjusted |
| CN111451695A (en) * | 2020-05-14 | 2020-07-28 | 厦门雅焊达自动化科技有限公司 | Angle-adjustable compactor |
| CN112372553A (en) * | 2020-12-20 | 2021-02-19 | 十堰精密新动力科技股份有限公司 | Self-adaptive pressing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113119000A (en) | 2021-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9193040B2 (en) | Machine vise attachment | |
| CN213560845U (en) | Pipe welding clamping device | |
| CN111496455A (en) | Support welding clamp for automobile seat | |
| CN104128733A (en) | Adjustable welding set | |
| CN113119000B (en) | Clamping device | |
| CN217194931U (en) | Adjustable clamp for mechanical production | |
| CN212420470U (en) | Planer-type milling machine positioning fixture | |
| CN113211126B (en) | 45-degree inclined lathe milling end face centering device for steering knuckle | |
| CN2917923Y (en) | Cramping apparatus for processing dome head welding groove | |
| CN213080520U (en) | Welding table is used in electric cabinet production | |
| CN213052818U (en) | Brake shoe drilling and boring machine tool | |
| CN212552786U (en) | Fixture tool of machine tool machining center | |
| CN205057554U (en) | A anchor clamps for processing of forklift speed changing box box | |
| CN210160546U (en) | Angle-adjustable electric spark machining fixture | |
| CN106002343A (en) | Elastic bracket for revolving body workpiece | |
| CN210121770U (en) | Fixture of milling machine | |
| CN219043678U (en) | Milling machine processing auxiliary support clamp | |
| CN219704240U (en) | Vertical clamp for placing rolling roller support | |
| CN218798340U (en) | Distribution box plate bending equipment | |
| CN217965982U (en) | Connecting plate positioning fixture | |
| CN217224607U (en) | Tool support for milling machine dividing head | |
| CN219465466U (en) | Device for fixing special-shaped part machining | |
| CN212735786U (en) | Auxiliary positioning device for installing main shaft | |
| CN214444205U (en) | Rapid clamping device for welding edge beam | |
| CN219212826U (en) | Self-centering vice for round product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |