CN112276617B - High and adjustable spacing intensity's of protectiveness fixture for machining - Google Patents
High and adjustable spacing intensity's of protectiveness fixture for machining Download PDFInfo
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- CN112276617B CN112276617B CN202011122823.3A CN202011122823A CN112276617B CN 112276617 B CN112276617 B CN 112276617B CN 202011122823 A CN202011122823 A CN 202011122823A CN 112276617 B CN112276617 B CN 112276617B
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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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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Abstract
The invention discloses a clamping mechanism for machining, which is high in protection performance and adjustable in limiting strength. Through the setting of square clamp piece, bearing D and thumb screw, press from both sides the piece and press from both sides the back to the work piece centre gripping jointly on the right side, can further through pressing from both sides tight piece or the left side along right side clamp piece screw thread tightening thumb screw, convert its rotary motion into linear motion through bearing D to the square clamp piece of drive is further consolidated the centre gripping to the work piece, further strengthens the spacing intensity of centre gripping to the work piece.
Description
Technical Field
The invention relates to the technical field of machining clamps, in particular to a clamping mechanism with high protection and adjustable limiting strength for machining.
Background
The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. 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.
For example, application No.: 201911137435.X the invention provides a machining fixture. The machining jig includes: a housing; the two sides of the U-shaped block are respectively fixed on the two sides of the inner wall of the shell; the driving structure is arranged at the bottom of the inner wall of the U-shaped block and comprises a fixed block, the bottom of the fixed block is fixed at the bottom of the inner wall of the U-shaped block, two guide rails are arranged inside the fixed block, two ends of the guide rails are fixed at two sides of the inner wall of the U-shaped block respectively, and two sliding plates are connected between the outer surfaces of the two ends of the guide rails in a sliding mode. The machining clamp provided by the invention has the function of disassembling the clamp so as to be convenient for installing clamps of different models, and the clamping groove and the clamped part have the same shape, so that workpieces of different shapes can be clamped, the function of the device is improved, the use at different positions is convenient, and the market popularization is convenient.
The existing machining clamp has the following defects in practical application: the protection performance of the existing mechanical processing clamp is low, when a workpiece is processed, the clamp for clamping the workpiece is easily affected by external force to clamp the workpiece to loosen, and the workpiece processing failure caused by the looseness of the clamped workpiece or the damage condition to processing equipment or workers caused by the stress of the workpiece due to the looseness during processing are caused.
Disclosure of Invention
The invention aims to provide a pushing device for machining production of a clamping mechanism for machining, which has high protection performance and adjustable limiting strength, and aims to solve the problems that the conventional machining clamp has low protection performance, the clamp for clamping a workpiece is easily affected by external force during the machining process of the workpiece, so that the clamping is loosened, the workpiece is machined and fails due to the looseness of the clamped workpiece during machining, or the workpiece is stressed and splashed outwards to damage machining equipment or workers due to the looseness.
In order to achieve the purpose, the invention provides the following technical scheme: a clamping mechanism for machining, which is high in protection performance and adjustable in limiting strength, comprises a bearing mechanism, wherein a group of clamping mechanisms are mounted at the left end of the bearing mechanism, and a group of transmission mechanisms in meshing transmission with the clamping mechanisms are mounted at the left end of the bearing mechanism; fixture is including square tight piece of clamp, the thumb screw, bearing D, the corresponding terminal surface of the tight piece of right side clamp and the tight piece of left side clamp is all seted up flutedly, and all be provided with a square tight piece of clamp in the recess, two square tight piece of clamp go up all embedded installations have a set of bearing D, bearing D is connected with the double-screw bolt bottom stationary phase of thumb screw, two sets of thumb screws are connected with the tight piece of right side clamp and the tight piece screw thread transmission of left side clamp respectively, under the fixture installation state, the worm both ends are connected with bearing A stationary phase, the isosceles trapezoid slider is connected along isosceles trapezoid spout slip through the ball.
Preferably, the bearing mechanism is provided with a rectangular bottom plate under the rectangular workbench including rectangular workbench, rectangular bottom plate, spliced pole, square mounting panel, and rectangular workbench bottom end face edge contained angle position all is connected with rectangular bottom plate top end face is fixed through a spliced pole everywhere, and rectangular bottom plate left end face and right-hand member face all are the symmetry and respectively are provided with two square mounting panels, and square mounting panel top end face central point has seted up the installation hole site.
Preferably, bearing mechanism is including the transmission chamber, bearing B, pivot A, gear B, gear C, terminal surface before the rectangle workstation, the rear end face, a transmission chamber has been seted up jointly to left end face and right-hand member face upper side position, transmission chamber inner bottom surface is from the back to preceding be the embedded three group's bearing B of installing of evenly distributed form altogether, equal fixed mounting has a pivot A in every group bearing B, a pivot A that lies in the rear side goes up fixed mounting has a gear A, a pivot A that lies in the centre goes up fixed mounting has a gear B with gear A engaged with, a pivot A that lies in the front side goes up fixed mounting has a gear C with gear B engaged with.
Preferably, the bearing mechanism comprises a limit screw and a countersunk threaded through hole, the countersunk threaded through hole communicated with the transmission cavity is formed in the front side of the top end face of the rectangular workbench and corresponds to the gear C, the countersunk threaded through hole is in threaded connection with the limit screw, when the top end face of the head end of the limit screw and the top end face of the rectangular workbench are located on the same horizontal plane, the bottom end face of the head end of the limit screw is higher than the bottom face of the concave end in the countersunk threaded through hole, and the bottom face of the stud end of the limit screw is in contact with the top end face of the gear C.
Preferably, the bearing mechanism is including square extension board, bearing A, isosceles trapezoid spout, circular recess, bearing C, a round groove has been seted up in rectangle workstation end face left side, and the embedded a set of bearing C of installing in circular recess axle center position, bearing C is in same water flat line with a set of bearing B that is located the rear side, an isosceles trapezoid spout has been seted up to rectangle workstation left end face, rectangle workstation left end face is two square extension boards of symmetry form fixedly connected with around for circular recess position, every square extension board central point all embedded a set of bearing A of installing.
Preferably, fixture is including the worm, the positive screw rod that revolves, the derotation screw rod, the tight piece of right side clamp, the tight piece of left side clamp, the isosceles trapezoid slider, the ball, positive screw rod of worm right-hand member fixedly connected with, a derotation screw rod of worm left end fixedly connected with, on the positive screw rod and the derotation screw rod respectively thread transmission have a right side to press from both sides tight piece and a left side and press from both sides tight piece, the tight piece of right side clamp all is provided with an isosceles trapezoid slider with the tight piece front end face downside position in left side clamp, every isosceles trapezoid slider front end face and two slope terminal surfaces all embed rotation and install a ball.
Preferably, the clamping mechanism comprises an inner hexagonal groove, and the right end face axis part of the forward-rotation screw and the left end face axis part of the reverse-rotation screw are both provided with one inner hexagonal groove.
Preferably, the transmission mechanism comprises a worm wheel, a rotating shaft B and a transmission gear, a group of worm wheels are fixedly mounted at the bottom end of the rotating shaft B, the transmission gear is fixedly mounted at the top end of the rotating shaft B, the rotating shaft B is fixedly connected with the bearing C in the installation state of the transmission mechanism, the transmission gear is meshed with the gear A, the worm wheel is located in the circular groove, and the worm wheel is meshed with the worm for transmission.
Compared with the prior art, the invention has the beneficial effects that:
through the setting of square clamp piece, bearing D and thumb screw, press from both sides the piece and press from both sides the back to the work piece centre gripping jointly on the right side, can further through pressing from both sides tight piece or the left side along right side clamp piece screw thread tightening thumb screw, convert its rotary motion into linear motion through bearing D to the square clamp piece of drive is further consolidated the centre gripping to the work piece, further strengthens the spacing intensity of centre gripping to the work piece.
After a workpiece is clamped and limited, a limiting screw can be screwed down along the countersunk head thread through hole by a tool, when the top end surface of the head end of the limiting screw is positioned at the same horizontal plane with the top end surface of the rectangular workbench, the bottom end surface of the head end of the limiting screw is higher than the bottom surface of the concave end in the countersunk head thread through hole, and the bottom surface of the stud end of the limiting screw is contacted with the top end surface of the gear C, so that the bottom surface of the stud end of the limiting screw is tightly attached to the top end surface of the gear C by screwing the limiting screw, the gear C is limited and fixed, the gear A, the gear B and the gear C are sequentially engaged, after the gear C is limited and fixed, the worm is limited and cannot rotate, the situation that the workpiece clamped by the right clamping block and the left clamping block is loosened due to the stress rotation of the worm during mechanical processing, the processing failure of the workpiece is caused, or the situation that the workpiece is stressed and splashed outward to damage to processing equipment or workers is caused due to the looseness is avoided, the effect of high protection is achieved.
Drawings
FIG. 1 is a schematic axial view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic axial view of a support mechanism according to the present invention;
FIG. 4 is a schematic cross-sectional view of the support mechanism of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is a schematic cross-sectional view of B-B of FIG. 4 according to the present invention;
FIG. 7 is a schematic cross-sectional view of FIG. 4 taken along line C-C in accordance with the present invention;
FIG. 8 is a schematic cross-sectional view of D-D of FIG. 4 according to the present invention;
FIG. 9 is an axial view of the clamping mechanism of the present invention;
FIG. 10 is a schematic cross-sectional view of a clamping mechanism according to the present invention;
FIG. 11 is a schematic view of the transmission mechanism of the present invention;
FIG. 12 is a schematic view of the transmission structure of the supporting mechanism, the clamping mechanism and the transmission mechanism of the present invention;
in the figure: 1-a supporting mechanism; 101-a rectangular table; 102-a square extension plate; 103-bearing a; 104-a transmission cavity; 105-a limit screw; 106-rectangular backplane; 107-connecting column; 108-square mounting plate; 109-isosceles trapezoid chute; 1010-bearing B; 1011-rotating shaft A; 1012-Gear A; 1013-gear B; 1014-Gear C; 1015-countersunk head thread through hole; 1016-circular grooves; 1017-bearing C; 2-a clamping mechanism; 201-a worm; 202-positive rotation screw; 203-reverse rotation screw; 204-right clamping block; 205-left clamping block; 206-isosceles trapezoid slider; 207-rolling balls; 208-square clamping block; 209-butterfly screw; 2010-bearing D; 2011-inner hexagonal groove; 3-a transmission mechanism; 301-a worm gear; 302-rotation axis B; 303-drive gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-12, the present invention provides a clamping mechanism for machining with high protection and adjustable limiting strength, which comprises: a clamping mechanism for machining with high protection performance and adjustable limiting strength comprises a supporting mechanism 1, wherein a group of clamping mechanisms 2 are mounted at the left end of the supporting mechanism 1, and a group of transmission mechanisms 3 in meshing transmission with the clamping mechanisms 2 are mounted at the left end of the supporting mechanism 1; clamping mechanism 2 is including square clamp piece 208, thumb screw 209, bearing D2010, the corresponding terminal surface of right side clamp piece 204 and left side clamp piece 205 is all seted up flutedly, and all be provided with a square clamp piece 208 in the recess, all embedded a set of bearing D2010 of installing on two square clamp pieces 208, bearing D2010 is connected with thumb screw 209 double-screw bolt bottom stationary phase, two sets of thumb screw 209 press from both sides tight piece 204 with the right side respectively and press from both sides tight piece 205 screw thread drive with the left side, under the 2 installation of clamping mechanism, worm 201 both ends are connected with bearing A103 stationary phase, isosceles trapezoid slider 206 is connected along isosceles trapezoid spout 109 through ball 207 slip.
Wherein, the supporting mechanism 1 is including rectangle workstation 101, rectangle bottom plate 106, spliced pole 107, square mounting panel 108, be provided with a rectangle bottom plate 106 under the rectangle workstation 101, and rectangle workstation 101 bottom face edge contained angle position all is connected with rectangle bottom plate 106 top face is fixed through a spliced pole 107 in four places, rectangle bottom plate 106 left end face and right-hand member face all are the symmetry and respectively are provided with two square mounting panels 108, and square mounting panel 108 top face central point has seted up the installation hole site.
The supporting mechanism 1 comprises a transmission cavity 104, bearings B1010, a rotating shaft A1011, gears A1012, gears B1013 and gears C1014, wherein the transmission cavity 104 is jointly arranged at the upper side parts of the front end face, the rear end face, the left end face and the right end face of the rectangular workbench 101, three groups of bearings B1010 are embedded and installed in the bottom surface of the inner end of the transmission cavity 104 from back to front in an evenly distributed manner, one rotating shaft A1011 is fixedly installed in each group of bearings B1010, one rotating shaft A1011 positioned at the rear side is fixedly installed with one gear A1012, one rotating shaft A1011 positioned in the middle is fixedly installed with one gear B1013 meshed with the gear A1012, and one rotating shaft A1011 positioned at the front side is fixedly installed with one gear C1014 meshed with the gear B1013.
The supporting mechanism 1 comprises a limit screw 105 and a countersunk head thread through hole 1015, the countersunk head thread through hole 1015 is formed in the front side of the top end face of the rectangular workbench 101 relative to the gear C1014, the countersunk head thread through hole 1015 communicated with the transmission cavity 104 is connected with the limit screw 105 through threads in the countersunk head thread through hole 1015, when the top end face of the head end of the limit screw 105 and the top end face of the rectangular workbench 101 are in the same horizontal plane, the bottom end face of the head end of the limit screw 105 is higher than the bottom face of the concave end in the countersunk head thread through hole 1015, and the bottom face of the stud end of the limit screw 105 is in contact with the top end face of the gear C1014.
Wherein, bearing mechanism 1 is including square extension board 102, bearing A103, isosceles trapezoid spout 109, circular recess 1016, bearing C1017, rectangular work platform 101 bottom face left side has been seted up a circular recess 1016, and circular recess 1016 axle center position embedded installation has a set of bearing C1017, bearing C1017 is in same water flat line with a set of bearing B1010 that is located the rear side, rectangular work platform 101 left end face has been seted up an isosceles trapezoid spout 109, rectangular work platform 101 left end face is two square extension boards 102 of symmetry form fixedly connected with around for circular recess 1016 position, every square extension board 102 central point all embedded installation has a set of bearing A103.
The clamping mechanism 2 comprises a worm 201, a forward screw 202, a reverse screw 203, a right clamping block 204, a left clamping block 205, isosceles trapezoid sliding blocks 206 and balls 207, wherein the right end of the worm 201 is fixedly connected with the forward screw 202, the left end of the worm 201 is fixedly connected with the reverse screw 203, the forward screw 202 and the reverse screw 203 are respectively in threaded transmission with the right clamping block 204 and the left clamping block 205, the isosceles trapezoid sliding blocks 206 are respectively arranged at the lower side parts of the front end surfaces of the right clamping block 204 and the left clamping block 205, and the balls 207 are respectively installed on the front end surface and two inclined end surfaces of each isosceles trapezoid sliding block 206 in an embedded and rotating mode.
The clamping mechanism 2 includes an inner hexagonal recess 2011, and the right end surface axis of the forward screw 202 and the left end surface axis of the backward screw 203 are both provided with one inner hexagonal recess 2011.
The transmission mechanism 3 comprises a worm wheel 301, a rotating shaft B302 and a transmission gear 303, a group of worm wheels 301 is fixedly installed at the bottom end of the rotating shaft B302, the transmission gear 303 is fixedly installed at the top end of the rotating shaft B302, the rotating shaft B302 is fixedly connected with a bearing C1017 in the installation state of the transmission mechanism 3, the transmission gear 303 is meshed with a gear A1012, the worm wheel 301 is located in a circular groove 1016, and the worm wheel 301 is in meshed transmission with the worm 201.
The working principle is as follows:
when the clamping mechanism is used, a workpiece to be clamped is placed between the right clamping block 204 and the left clamping block 205 in the clamping mechanism 2, and because the axial center part of the right end surface of the forward screw 202 and the axial center part of the left end surface of the backward screw 203 are both provided with one inner hexagonal groove 2011, the worm 201 can be rotated by matching an inner hexagonal wrench with the inner hexagonal groove 2011, and because the forward screw 202 and the backward screw 203 are respectively in threaded transmission with the right clamping block 204 and the left clamping block 205, the right clamping block 204 and the left clamping block 205 can be synchronously moved inwards or outwards through forward and backward threaded transmission, so that the clamping operation of the right clamping block 204 and the left clamping block 205 on the workpiece is realized;
furthermore, in the invention, grooves are formed in the corresponding end surfaces of the right clamping block 204 and the left clamping block 205, the square clamping blocks 208 are arranged in the grooves, a group of bearings D2010 is embedded in the two square clamping blocks 208, the bearings D2010 are fixedly connected with the bottom ends of studs of the butterfly screws 209, and the two groups of butterfly screws 209 are in threaded transmission connection with the right clamping block 204 and the left clamping block 205 respectively, so that after the right clamping block 204 and the left clamping block 205 clamp a workpiece together, the butterfly screws 209 can be screwed tightly along the right clamping block 204 or the left clamping block 205, and the rotary motion of the butterfly screws 209 can be converted into linear motion through the bearings D2010, so that the square clamping blocks 208 are driven to further reinforce and clamp the workpiece, and the clamping limit strength of the workpiece is further enhanced;
after the workpiece is clamped and limited, the limit screw 105 can be screwed tightly along the countersunk head thread through hole 1015 by a tool, because when the top end surface of the head end of the limit screw 105 and the top end surface of the rectangular workbench 101 are in the same horizontal plane, the bottom end surface of the head end of the limit screw 105 is higher than the bottom surface of the concave end of the countersunk head thread through hole 1015, and the bottom surface of the stud end of the limit screw 105 is contacted with the top end surface of the gear C1014, the bottom surface of the stud end of the limit screw 105 is tightly attached to the top end surface of the gear C1014 by screwing the limit screw 105, so that the gear C1014 is limited and fixed, because the transmission gear 303, the gear a1012, the gear B1013 and the gear C1014 are sequentially engaged, after the gear C1014 is limited and fixed, the worm 201 is simultaneously limited and cannot rotate, the situation that the workpiece clamped by the right clamping block 204 and the left clamping block 205 is loosened to cause the processing failure or the damage to processing equipment or workers caused by the workpiece being forced by the looseness during the workpiece is avoided, the effect of high protection is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a high and adjustable spacing intensity's of protectiveness fixture for machining, includes bearing mechanism (1), its characterized in that: a group of clamping mechanisms (2) is installed at the left end of the bearing mechanism (1), and a group of transmission mechanisms (3) which are in meshing transmission with the clamping mechanisms (2) are installed at the left end of the bearing mechanism (1); the clamping mechanism (2) comprises square clamping blocks (208), thumb screws (209) and bearings D (2010), grooves are formed in the corresponding end faces of the right side clamping block (204) and the left side clamping block (205), the square clamping blocks (208) are arranged in the grooves, a group of bearings D (2010) are embedded in the two square clamping blocks (208), the bearings D (2010) are fixedly connected with the bottom ends of studs of the thumb screws (209), the two groups of thumb screws (209) are in threaded transmission connection with the right side clamping block (204) and the left side clamping block (205) respectively, in the installation state of the clamping mechanism (2), two ends of a worm (201) are fixedly connected with the bearings A (103), and an isosceles trapezoid sliding block (206) is connected with the isosceles trapezoid sliding groove (109) in a sliding mode through a ball (207);
the supporting mechanism (1) comprises a rectangular workbench (101), a rectangular bottom plate (106), connecting columns (107) and square mounting plates (108), wherein the rectangular bottom plate (106) is arranged under the rectangular workbench (101), the included angles of the edges of the four positions of the bottom end face of the rectangular workbench (101) are fixedly connected with the top end face of the rectangular bottom plate (106) through the connecting columns (107), the left end face and the right end face of the rectangular bottom plate (106) are symmetrically provided with the two square mounting plates (108), and the center of the top end face of each square mounting plate (108) is provided with a mounting hole;
the bearing mechanism (1) comprises a transmission cavity (104), a bearing B (1010), a rotating shaft A (1011), a gear A (1012), a gear B (1013) and a gear C (1014), the upper side parts of the front end face, the rear end face, the left end face and the right end face of the rectangular workbench (101) are jointly provided with a transmission cavity (104), the bottom surfaces of the inner ends of the transmission cavity (104) are uniformly distributed from back to front and are internally embedded with three groups of bearings B (1010), a rotating shaft A (1011) is fixedly arranged in each group of bearings B (1010), a gear A (1012) is fixedly arranged on the rotating shaft A (1011) on the rear side, a gear B (1013) meshed with the gear A (1012) is fixedly arranged on the rotating shaft A (1011) in the middle, and a gear C (1014) meshed with the gear B (1013) is fixedly arranged on the rotating shaft A (1011) on the front side;
the bearing mechanism (1) comprises a limiting screw (105) and a countersunk head thread through hole (1015), the countersunk head thread through hole (1015) communicated with the transmission cavity (104) is formed in the front side of the top end face of the rectangular workbench (101) relative to the gear C (1014), the countersunk head thread through hole (1015) is in internal thread connection with the limiting screw (105), when the top end face of the head end of the limiting screw (105) and the top end face of the rectangular workbench (101) are in the same horizontal plane, the bottom end face of the head end of the limiting screw (105) is higher than the bottom face of the concave end of the countersunk head thread through hole (1015), and the bottom face of the stud end of the limiting screw (105) is contacted with the top end face of the gear C (1014);
the bearing mechanism (1) comprises square extension plates (102), a bearing A (103), isosceles trapezoid sliding grooves (109), circular grooves (1016) and a bearing C (1017), wherein the left side of the bottom end face of the rectangular workbench (101) is provided with one circular groove (1016), a group of bearings C (1017) are embedded in the axis part of the circular groove (1016), the bearing C (1017) and a group of bearings B (1010) located on the rear side are located on the same horizontal line, the left end face of the rectangular workbench (101) is provided with one isosceles trapezoid sliding groove (109), the left end face of the rectangular workbench (101) is fixedly connected with the two square extension plates (102) in a front-back symmetrical mode relative to the circular groove (1016), and the center part of each square extension plate (102) is provided with one group of bearings A (103);
the clamping mechanism (2) comprises a worm (201), a forward-rotating screw rod (202), a backward-rotating screw rod (203), a right-side clamping block (204), a left-side clamping block (205), isosceles trapezoid sliding blocks (206) and balls (207), wherein the right end of the worm (201) is fixedly connected with the forward-rotating screw rod (202), the left end of the worm (201) is fixedly connected with the backward-rotating screw rod (203), the forward-rotating screw rod (202) and the backward-rotating screw rod (203) are respectively in threaded transmission with the right-side clamping block (204) and the left-side clamping block (205), the isosceles trapezoid sliding blocks (206) are respectively arranged at the lower side parts of the front end surfaces of the right-side clamping block (204) and the left-side clamping block (205), and the balls (207) are respectively embedded and rotatably mounted in the front end surface and two inclined end surfaces of each isosceles trapezoid sliding block (206);
the clamping mechanism (2) comprises an inner hexagonal groove (2011), and the right end face axis part of the forward-rotation screw rod (202) and the left end face axis part of the backward-rotation screw rod (203) are both provided with one inner hexagonal groove (2011);
the transmission mechanism (3) comprises a worm wheel (301), a rotating shaft B (302) and a transmission gear (303), a group of worm wheels (301) are fixedly installed at the bottom end of the rotating shaft B (302), the transmission gear (303) is fixedly installed at the top end of the rotating shaft B (302), the rotating shaft B (302) is fixedly connected with a bearing C (1017) in the installation state of the transmission mechanism (3), the transmission gear (303) is meshed with a gear A (1012), the worm wheel (301) is located in a circular groove (1016), and the worm wheels (301) are meshed with the worm (201) for transmission;
when the clamping mechanism is used, a workpiece to be clamped is placed between a right clamping block (204) and a left clamping block (205) in the clamping mechanism (2), and because the right end surface axis part of the forward-rotating screw (202) and the left end surface axis part of the backward-rotating screw (203) are both provided with an inner hexagonal groove (2011), the worm (201) can be rotated by matching an inner hexagonal wrench with the inner hexagonal groove (2011), and because the forward-rotating screw (202) and the backward-rotating screw (203) are respectively in threaded transmission with the right clamping block (204) and the left clamping block (205), the right clamping block (204) and the left clamping block (205) can synchronously move inwards or outwards through forward-rotating and backward-rotating threaded transmission, so that the clamping operation of the right clamping block (204) and the left clamping block (205) on the workpiece is realized;
furthermore, because the corresponding end surfaces of the right clamping block (204) and the left clamping block (205) are provided with grooves, and the grooves are internally provided with a square clamping block (208), a group of bearings D (2010) are embedded in the two square clamping blocks (208), the bearings D (2010) are fixedly connected with the bottom ends of the studs of the butterfly screws (209), and two groups of butterfly screws (209) are respectively in threaded transmission connection with the right clamping block (204) and the left clamping block (205), so that when the right clamping block (204) and the left clamping block (205) clamp a workpiece together, the rotary motion of the right clamping block (204) or the left clamping block (205) can be further converted into the linear motion through a bearing D (2010) by screwing a thumb screw (209) along the right clamping block, therefore, the square clamping block (208) is driven to further reinforce and clamp the workpiece, and the clamping limiting strength of the workpiece is further enhanced;
when a workpiece is clamped and limited, the limiting screw (105) can be screwed tightly along the countersunk head thread through hole (1015) through a tool, when the top end surface of the head end of the limiting screw (105) is positioned at the same horizontal plane with the top end surface of the rectangular workbench (101), the bottom end surface of the head end of the limiting screw (105) is higher than the bottom surface of the concave end of the countersunk head thread through hole (1015), and the bottom surface of the screw column end of the limiting screw (105) is contacted with the top end surface of the gear C (1014), so that the bottom surface of the screw column end of the limiting screw (105) is tightly attached to the top end surface of the gear C (1014) through screwing the limiting screw (105), the gear C (1014) is limited and fixed, and the transmission gear (303), the gear A (1012), the gear B (1013) and the gear C (1014) are sequentially engaged, so that after the gear C (1014) is limited and fixed, the worm (201) can be simultaneously limited and can not rotate, and the worm (201) is prevented from being stressed and rotated during mechanical processing, the workpiece clamped by the right clamping block (204) and the left clamping block (205) is loosened to cause the processing failure of the workpiece or the workpiece is stressed to burst to cause the damage to processing equipment or workers due to the loosening, so that the effect of high protection is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122823.3A CN112276617B (en) | 2020-10-20 | 2020-10-20 | High and adjustable spacing intensity's of protectiveness fixture for machining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122823.3A CN112276617B (en) | 2020-10-20 | 2020-10-20 | High and adjustable spacing intensity's of protectiveness fixture for machining |
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| Publication Number | Publication Date |
|---|---|
| CN112276617A CN112276617A (en) | 2021-01-29 |
| CN112276617B true CN112276617B (en) | 2022-06-21 |
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| CN202011122823.3A Active CN112276617B (en) | 2020-10-20 | 2020-10-20 | High and adjustable spacing intensity's of protectiveness fixture for machining |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208976987U (en) * | 2018-10-20 | 2019-06-14 | 佛山市顺德区天裕实业有限公司 | A kind of electric capacity chip process equipment that clamping effect is good |
| CN209698513U (en) * | 2019-02-28 | 2019-11-29 | 蚌埠学院 | A kind of flat-nose pliers processed convenient for clamping and keyway |
| CN210817536U (en) * | 2019-08-23 | 2020-06-23 | 郑州亚鑫机电设备有限公司 | Automatic clamping double-boring-head machine tool |
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| CN112276617A (en) | 2021-01-29 |
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