Disclosure of Invention
In order to solve the problems in the background art, the invention provides a safety protection mechanism for a stamping die, which solves the problem that the hands of operators cannot be separated from the die in time when the upper die and the lower die are closed, so that dangerous conditions occur.
In order to achieve the above purpose, the present invention provides the following technical solutions: a safety protection mechanism for stamping die, including the support and install in the hydraulic assembly at support top, still include:
The die mechanism is arranged on the bracket; the deflector rod protection assembly is hinged to the die mechanism and used for preventing hands of operators from going deep into the die mechanism; a fixing assembly for maintaining the stability of the mold mechanism at the time of mold closing;
the die mechanism comprises a base fixedly connected to a support and an upper die fixedly connected to the output end of the hydraulic assembly, a lower die is movably connected to the inside of the base, a first horizontal groove and a second horizontal groove are formed in two sides of the base, a first convex column and a second convex column which can slide in the first horizontal groove and the second horizontal groove are respectively and fixedly connected to two sides of the lower die, an elastic limit column is fixedly connected to two sides of the upper die, a four-bar assembly is elastically connected to the elastic limit column, the bottom end of the four-bar assembly is movably sleeved outside the first convex column, connecting lines at two ends of the four-bar assembly are always in an inclined state, one ends, away from the deflector rod protection assembly, of the first horizontal groove and the second horizontal groove are respectively communicated with a first vertical bending part and a second vertical bending part, and initially, the first convex column and the second convex column are respectively arranged at the bottommost parts of the first vertical bending part and the second vertical bending part;
the top of the base is provided with a guide strut which can be sleeved in the upper die.
Preferably, when the first convex column and the second convex column slide into the first horizontal groove and the second horizontal groove respectively, a gap is reserved between the bottom of the lower die and the base;
the lengths of the first vertical bending part and the second vertical bending part are equal to the inclination angles of the bending parts respectively.
Preferably, the vertical height of the first convex column is Yu Tuzhu two, one end, away from the second vertical bending part, of the second horizontal groove is communicated with the first chute, and the second convex column can slide into the first chute from the second horizontal groove.
Preferably, bending grooves are formed in two sides of the lower die;
The deflector rod protection assembly comprises arc deflector rods symmetrically hinged to the base, a plurality of stop rods are fixedly connected between the two arc deflector rods, connecting rods are fixedly connected to the hinged ends of the arc deflector rods, and convex shafts capable of sliding in the bending grooves are fixedly connected to the ends, away from the ends, hinged to the arc deflector rods, of the connecting rods.
Preferably, the bending groove comprises a horizontal groove III, and a chute II and a chute III which are respectively communicated with the two ends of the horizontal groove III;
the length of the chute II in the horizontal direction is equal to the length of the vertical bending part I and the vertical bending part II in the horizontal direction respectively.
Preferably, when the convex shaft enters the horizontal groove III from the chute II, the connecting lines at two ends of the arc-shaped deflector rod are in a horizontal state, and one stop lever, which is far away from the connecting rod, on the arc-shaped deflector rod is abutted with the bottom of the lower die.
Preferably, the length of the third horizontal groove is equal to that of the second horizontal groove; when the second convex column slides into the second vertical bending part from the second horizontal groove, the convex shaft slides into the third chute from the third horizontal groove.
Preferably, two ends of the upper die are also fixedly connected with a first inclined block;
The fixed component comprises a mounting plate which is symmetrically and fixedly connected to one side of the base, far away from the deflector rod protection component; the inclined block II is movably connected to one end, close to the first vertical bending part, of the inner wall of the base; the mounting plate is connected with the second inclined block through an elastic piece;
the inclined block can extrude the top of the inclined block II in a descending way and enables the inclined block II to integrally move towards the first convex column and the second convex column, so that the inclined block is respectively extruded and fixed on the first convex column and the second convex column.
Preferably, the second inclined block comprises an inclined plane I, an inclined plane II and an inclined plane III at the top, the middle and the bottom;
The first inclined block is matched with the first inclined plane, and when the second inclined block integrally moves away from the mounting plate, the second inclined plane and the third inclined plane can respectively extrude the first convex column and the second convex column.
Preferably, two ends of the elastic piece are provided with sliding blocks, and the two sliding blocks are movably clamped in the mounting plate and the inclined block II respectively;
When the elastic piece is in a natural state, the inclined planes II and III are completely separated from the vertical bending part I and the vertical bending part II.
Compared with the prior art, the invention has the following beneficial effects:
According to the scheme, in the die opening process, the hydraulic assembly is operated, the first convex column is driven to sequentially move along the first vertical bending part and the first horizontal groove through the elastic limiting column and the fourth connecting rod assembly, so that the lower die is driven to move, the lower die and the upper die are vertically misplaced, an operator can place a blank with stamping on the lower die at the moment, and the hands of the operator are always misplaced with the upper die in the vertical direction, so that the problem that dangerous conditions occur due to the fact that the hands of the operator cannot be timely separated from the die when the upper die and the lower die are clamped is solved;
According to the scheme, in the die assembly process, the hydraulic assembly is operated to enable the upper die to descend, the lower die is pushed to reversely move and reset through the four-bar assembly, when the first convex column and the second convex column slide into the first vertical bending part and the second vertical bending part respectively from the first horizontal groove and the second horizontal groove, the convex shaft slides into the second chute from the third horizontal groove, at the moment, the arc-shaped deflector rod can rotate anticlockwise with the axis and block an operator, and further the protection effect on hands of people is achieved;
According to the scheme, in the die assembly process, the first protruding column and the second protruding column are respectively arranged at the first vertical bending part and the second vertical bending part, when the first protruding column and the second protruding column are arranged at the bottommost part, the hydraulic assembly is operated to enable the upper die to continuously descend and drive the elastic limiting column to descend, the top end of the four-bar assembly and the elastic limiting column relatively slide, meanwhile, the first inclined block downwards extrudes the first inclined plane, and further the second inclined block is forced to integrally move towards one side far away from the elastic piece, so that the first inclined plane and the second inclined plane respectively extrude the first protruding column and the second protruding column, and the effect of keeping the lower die stable is achieved.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 8, the present invention provides a safety protection mechanism for a stamping die, including a bracket 1 and a hydraulic assembly 2 mounted on top of the bracket 1, further including: a die mechanism 3 provided on the bracket 1; a deflector rod protection assembly 4 hinged to the mold mechanism 3 for preventing the operator's hand from going deep into the mold mechanism 3; a fixing assembly 5 for holding the mold mechanism 3 stable at the time of mold closing;
The die mechanism 3 comprises a base 31 fixedly connected to the bracket 1 and an upper die 33 fixedly connected to the output end of the hydraulic component 2, a lower die 32 is movably connected to the inside of the base 31, a first horizontal groove 311 and a second horizontal groove 312 are formed in two sides of the base 31, a first convex column 321 and a second convex column 322 which can slide in the first horizontal groove 311 and the second horizontal groove 312 are respectively fixedly connected to two sides of the lower die 32, an elastic limit column 331 is fixedly connected to two sides of the upper die 33, a four-bar assembly 34 is elastically connected to the elastic limit column 331, the bottom end of the four-bar assembly 34 is movably sleeved outside the first convex column 321, connecting lines of two ends of the four-bar assembly 34 are always in an inclined state, one ends of the first horizontal groove 311 and the second horizontal groove 312, which are far away from the deflector guard assembly 4, are respectively communicated with a first vertical bending part 3111 and a second vertical bending part 3121, and initially, the first convex column 321 and the second convex column 322 are respectively located at the bottommost parts of the first vertical bending part 3111 and the second vertical bending part 3121;
The top of the base 31 is provided with a guide strut 313 which can be sleeved inside the upper die 33;
By adopting the scheme, through the device at the die sinking in-process, operation hydraulic assembly 2 and through elasticity spacing post 331 and four-bar linkage 34 drive boss one 321 along vertical bend one 3111 and horizontal groove one 311 inside removal in proper order to drive lower mould 32 and remove, and make lower mould 32 and last mould 33 dislocation in the vertical direction, the operating personnel can place the blank of taking the punching press on lower mould 32 this moment, because operating personnel's hand misplaces in the vertical direction all the time with last mould 33, thereby solved last mould 33 and lower mould 32 and can't in time break away from the mould when the compound die thereby lead to the problem that dangerous situation appears with operating personnel's hand.
As shown in fig. 1-8, when the first protrusion 321 and the second protrusion 322 slide into the first horizontal groove 311 and the second horizontal groove 312 respectively, a gap is left between the bottom of the lower die 32 and the base 31;
the lengths of the first vertical bending part 3111 and the second vertical bending part 3121 are equal to the inclination angles of the bending parts respectively;
the vertical height of the first convex column 321 is Yu Tuzhu to be two 322, one end of the second horizontal groove 312, which is far away from the second vertical bending part 3121, is communicated with a first chute 3122, and the second convex column 322 can slide into the first chute 3122 from the second horizontal groove 312;
by adopting the above scheme, in the ascending process of the first convex column 321 and the second convex column 322, the lengths of the first vertical bending part 3111 and the second vertical bending part 3121 and the inclination angles of the bending parts are respectively equal, so that the lower die 32 is ensured to be always in a horizontal state in the ascending process.
As shown in fig. 1 to 8, bending grooves 323 are formed on both sides of the lower die 32; the deflector rod protection assembly 4 comprises arc deflector rods 41 symmetrically hinged on the base 31, a plurality of stop rods 411 are fixedly connected between the two arc deflector rods 41, a connecting rod 42 is fixedly connected to the hinged end of each arc deflector rod 41, and a convex shaft 421 capable of sliding in a bending groove 323 is fixedly connected to the end, away from the hinge, of each connecting rod 42;
The bending groove 323 comprises a horizontal groove III 3232, and a chute II 3231 and a chute III 3233 which are respectively communicated with the two ends of the horizontal groove III 3232;
the length of the chute II 3231 in the horizontal direction is equal to the length of the vertical bending part I3111 and the vertical bending part II 3121 in the horizontal direction respectively;
When the convex shaft 421 enters the horizontal groove III 3232 from the chute II 3231, the connecting lines at the two ends of the arc-shaped deflector rod 41 are in a horizontal state, and one stop lever 411, far away from the connecting rod 42, on the arc-shaped deflector rod 41 is abutted with the bottom of the lower die 32; the length of the third horizontal groove 3232 is equal to the length of the second horizontal groove 312; when the second convex column 322 slides into the second vertical bending part 3121 from the second horizontal groove 312, the convex shaft 421 slides into the third chute 3233 from the third horizontal groove 3232;
by adopting the scheme, the hydraulic assembly 2 is operated to enable the upper die 33 to move downwards in the die assembly process through the device, the lower die 32 is pushed to move reversely and reset through the four-bar assembly 34, when the first convex column 321 and the second convex column 322 are respectively slipped into the first vertical bending part 3111 and the second vertical bending part 3121 through the first horizontal groove 311 and the second horizontal groove 312, the convex shaft 421 can be slipped into the second chute 3231 from the third horizontal groove 3232, and at the moment, the arc deflector rod 41 can rotate anticlockwise with the axis and block an operator, so that the hand protection effect of people is further achieved.
As shown in fig. 2-5 and fig. 7, two ends of the upper die 33 are fixedly connected with a first inclined block 332; the fixed component 5 comprises a mounting plate 51 which is symmetrically and fixedly connected to one side of the base 31 far away from the deflector rod protection component 4; the second inclined block 53 is movably connected to one end, close to the first vertical bending part 3111, of the inner wall of the base 31; the mounting plate 51 is connected with the second inclined block 53 through an elastic piece 52; the down-going of the inclined block I332 can extrude the top of the inclined block II 53 and enable the whole inclined block II 53 to move towards the convex column I321 and the convex column II 322, so that the inclined block II 53 respectively extrudes and fixes the convex column I321 and the convex column II 322;
the second inclined block 53 comprises a first inclined surface 531, a second inclined surface 532 and a third inclined surface 533 at the top, the middle and the bottom;
The first inclined block 332 is matched with the first inclined surface 531, and when the second inclined block 53 integrally moves away from the mounting plate 51, the second inclined surface 532 and the third inclined surface 533 can respectively press the first convex column 321 and the second convex column 322;
By adopting the above scheme, in the mold closing process, the first protrusion 321 and the second protrusion 322 are respectively positioned at the bottommost parts of the first vertical bending part 3111 and the second vertical bending part 3121, the hydraulic component 2 is operated to enable the upper mold 33 to continue to move downwards and drive the elastic limit column 331 to move downwards, so that the top end of the four-bar component 34 and the elastic limit column 331 slide relatively, and meanwhile, the first inclined block 332 also downwards extrudes the first inclined plane 531, so that the second inclined block 53 is forced to move towards the side far away from the elastic piece 52, and the second inclined plane 532 and the third inclined plane 533 respectively extrude the first protrusion 321 and the second protrusion 322 to achieve the effect of keeping the lower mold 32 stable.
As shown in fig. 5 and 7, two ends of the elastic member 52 are provided with sliding blocks, and the two sliding blocks are movably clamped in the mounting plate 51 and the second inclined block 53 respectively;
when the elastic piece 52 is in a natural state, the inclined planes two 532 and three 533 are completely separated from the vertical bending part one 3111 and the vertical bending part two 3121;
By adopting the scheme, the sliding blocks are arranged at the two ends of the elastic piece 52, so that an operator can conveniently replace the damaged elastic piece 52; when the first inclined block 332 is not in contact with the top of the second inclined block 53, the second inclined plane 532 and the third inclined plane 533 are completely separated from the first vertical bending part 3111 and the second vertical bending part 3121, so that the situation that the first protruding column 321 and the second protruding column 322 cannot be reset due to blocking of the second inclined plane 532 and the third inclined plane 533 respectively in the resetting process is avoided.
The working principle and the using flow of the invention are as follows:
When the die is opened, the operating hydraulic component 2 drives the upper die 33 to move upwards, so that the elastic limit column 331 is driven to move upwards, at the moment, the top end of the four-bar component 34 can keep the vertical height unchanged under the action of tension force of a tension spring on the elastic limit column 331, and when the lower surface of the top end of the four-bar component 34 is contacted with the bottom of the elastic limit column 331, the inclined plane I531 breaks away from the extrusion of the inclined plane II 53, so that the inclined plane II 53 is reset under the tension force of the elastic piece 52;
Then, the upper die 33 moves upwards to drive the first convex column 321 to sequentially move along the first vertical bending part 3111 and the first horizontal slot 311 through the elastic limiting column 331 and the four-bar assembly 34, so as to drive the lower die 32 to move, and enable the lower die 32 and the upper die 33 to be staggered in the vertical direction, and at the moment, an operator can place the blank with stamping on the lower die 32;
when the first protrusion 321 slides to the end of the first horizontal groove 311, the second protrusion 322 slides from the second horizontal groove 312 to the first chute 3122, so that the whole lower die 32 rotates around the first protrusion 321 during the movement;
Meanwhile, when the first protrusion 321 and the second protrusion 322 respectively go up from the bottom of the first vertical bending part 3111 and the second vertical bending part 3121 to the top, the lower die 32 goes up, so that the protruding shaft 421 slides along the second chute 3231, when the protruding shaft 421 slides into the third horizontal chute 3232, the connecting lines at two ends of the arc-shaped deflector 41 are in a horizontal state, the stop lever 411 supports the lower die 32, and when the protruding shaft 421 slides into the third chute 3233 from the third horizontal chute 3232, the stop lever 411 continuously rotates along with the arc-shaped deflector 41 and continuously supports the lower die 32;
When the die is closed, the upper die 33 is moved downwards by the operation of the hydraulic assembly 2, the lower die 32 is pushed to move reversely and reset by the four-bar assembly 34, when the first convex column 321 and the second convex column 322 slide into the first vertical bending part 3111 and the second vertical bending part 3121 respectively from the first horizontal groove 311 and the second horizontal groove 312, the convex shaft 421 slides into the second chute 3231 from the third horizontal groove 3232, and at the moment, the arc-shaped deflector rod 41 rotates anticlockwise around the axle center and blocks an operator;
When the first protrusion 321 and the second protrusion 322 are at the bottoms of the first vertical bending portion 3111 and the second vertical bending portion 3121, the upper die 33 continues to move downward and drives the elastic limiting post 331 to move downward, so that the top end of the four-bar assembly 34 and the elastic limiting post 331 slide relatively, and the first inclined block 332 also moves downward to press the first inclined surface 531, so as to force the second inclined block 53 to move toward the side far from the elastic member 52, so that the second inclined surface 532 and the third inclined surface 533 press the first protrusion 321 and the second protrusion 322 respectively to keep the lower die 32 stable.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.