CN110039163B - Mould ejector pin machining method and device - Google Patents
Mould ejector pin machining method and device Download PDFInfo
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- CN110039163B CN110039163B CN201910253545.6A CN201910253545A CN110039163B CN 110039163 B CN110039163 B CN 110039163B CN 201910253545 A CN201910253545 A CN 201910253545A CN 110039163 B CN110039163 B CN 110039163B
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- thimble
- ejector pin
- plate
- rod
- cap
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
Abstract
The invention relates to a mould thimble processing method and a device thereof, belonging to the field of mould accessory processing and aiming at providing a mould thimble processing method and a device thereof which have less processing procedures, high processing efficiency and convenient automatic production, wherein, the processing method divides a traditional thimble into a thimble rod and a thimble cap in an integrated structure, and the thimble rod and the thimble cap are respectively produced in batches, and then welding connection and surface treatment are carried out; the processing device is an automatic welding device, and realizes the automatic welding process of the thimble rod and the thimble cap by arranging a pneumatic butt-welding mechanism, a thimble rod moving-in mechanism, a thimble cap moving-in mechanism, a thimble moving-out mechanism and a controller.
Description
Technical Field
The invention relates to the field of mould accessory processing, in particular to a mould ejector pin processing method and a mould ejector pin processing device.
Background
As shown in fig. 1, a mold ejector 70 in the related art includes an ejector pin 72 and an ejector cap 71 at an end of the ejector pin 72, and is widely used for ejecting molded products in various molds.
The existing mould thimble is an integrated structure, and the processing process of the thimble sequentially comprises the following steps:
1) selecting a proper blank and detecting whether the processing requirement is met;
2) directly punching out the head part by using a heading machine, wherein the head part is used for reserving a thimble cap;
3) annealing the top pin by using a heat treatment furnace;
4) roughly processing the thimble by using a lathe, processing the head part and forming a thimble cap;
5) then, the thimble is semi-finished by a lathe;
6) the thimble is processed smoothly without a core;
7) performing finish machining on the thimble to enable the tolerance to reach the factory requirement;
8) and (5) detecting, oiling and packaging the thimble.
The thimble has the defects of long production period and low production efficiency in the existing processing technology of the thimble because the thimble has multiple working procedures in the processing process, and can not be automatically produced by manual feeding and discharging.
Disclosure of Invention
The invention aims to provide a die ejector pin processing method and a die ejector pin processing device which are few in processing procedures, high in processing efficiency and convenient for automatic production.
The above object of the present invention is achieved by the following technical solutions:
a processing method of a mold thimble, wherein the thimble comprises a thimble rod and a thimble cap positioned at the end part of the thimble rod, and the processing method comprises the following steps: mass production of thimble rods, mass production of thimble caps and welding;
s1, mass production of the thimble rods:
a1, selecting a proper ejector pin rod according to the drawing size;
a2, processing the ejector pin rod material through a numerical control lathe according to the drawing size and producing the ejector pin rod in batch;
s2, mass production of thimble caps:
a3, selecting a proper thimble cap bar according to the drawing size;
a4, processing the thimble cap bar stock through a numerical control lathe according to the drawing size and producing the thimble caps in batches;
s3, welding:
a5, welding and fixing the thimble rod and the thimble cap by a welding device to form a crude thimble; the welding device comprises a pneumatic butt-welding mechanism.
By adopting the technical scheme, the thimble rod and the thimble cap are processed in batches respectively and then are welded and fixed, and the traditional process needs processing procedures such as heading, annealing, multiple turning and the like, so that compared with the traditional process, the processing method provided by the invention has the advantages of fewer procedures, independent operation among the procedures, suitability for automatic production and capability of obviously improving the production efficiency.
The invention is further configured to: the processing method further comprises surface treatment;
s4, surface treatment:
a6, grinding and polishing the welding points protruded from the crude thimble in S3 according to the drawing size requirement to form a finished thimble;
and a7, detecting, cleaning and oiling the finished ejector pin to obtain the ejector pin.
By adopting the technical scheme, the convex welding spots generated at the welding positions of the crude thimbles are ground and polished, whether the produced thimbles meet the precision requirement is detected, and finally, the qualified thimbles are cleaned and oiled, so that the thimbles are favorably packaged and stored.
An automatic welding device for a mold thimble comprises a workbench, a pneumatic butt-welding mechanism arranged on the workbench, a thimble rod moving-in mechanism used for transferring a thimble rod to the pneumatic butt-welding mechanism, and a thimble cap moving-in mechanism used for transferring a thimble cap to the pneumatic butt-welding mechanism;
the pneumatic butt-welding mechanism comprises a clamping and welding mechanism for fixing and welding the thimble rod and the thimble cap and a propelling mechanism for driving the thimble cap to be butted, the clamping and welding mechanism comprises a clamping electrode for clamping and fixing the thimble rod or the thimble cap and a clamping cylinder for controlling the clamping electrode to be clamped oppositely, the clamping electrode is opposite to a clamping surface, and a groove is formed in the clamping surface; the pushing mechanism comprises a sliding block pushing cylinder and a guide sliding block fixed on a piston rod of the sliding block pushing cylinder, and a cylinder body of the sliding block pushing cylinder is fixed on the workbench;
the ejector pin rod moving-in mechanism comprises a positioning plate and an ejector pin rod propelling cylinder; the positioning plate is fixed on the workbench and arranged on one side of the clamping electrode, and an angle groove for guiding and stabilizing the thimble rod is formed in the positioning plate; the angle groove is composed of a guide inclined plane and a resisting plane, and the boundary line between the guide inclined plane and the resisting plane is positioned in the opening direction of the groove; the cylinder body of the ejector pin rod propelling cylinder is fixed on the workbench and arranged on one side of the positioning plate away from the clamping electrode, and a piston rod of the ejector pin rod propelling cylinder is coaxially connected with a propelling column for propelling the ejector pin rod into the groove;
the thimble cap moving-in mechanism comprises a thimble cap guide plate and a thimble cap pushing cylinder, the thimble cap guide plate is used for placing the thimble cap and guiding the thimble cap to the groove or the extension line of the groove, and the thimble cap pushing cylinder is used for pushing the thimble cap to be parallel to the end part of the groove.
By adopting the technical scheme, the thimble rod moving-in mechanism and the thimble cap moving-in mechanism are arranged on the basis of the pneumatic butt-welding mechanism, so that the thimble rods and the thimble caps which are produced in batches can be respectively moved to the grooves of the two clamping surfaces in the pneumatic butt-welding mechanism, and the subsequent butt joint and welding work of the pneumatic butt-welding mechanism are facilitated.
The invention is further configured to: the automatic welding device also comprises an ejector pin moving-out mechanism for moving out the welded ejector pin; the thimble moving-out mechanism comprises a thimble lifting plate and a thimble lifting cylinder, a cylinder body of the thimble lifting cylinder is relatively fixed with the workbench, and a piston rod of the thimble lifting cylinder is fixedly connected with the thimble lifting plate; the thimble lifting plate is movably arranged in the vertical direction of the positioning plate.
Through adopting above-mentioned technical scheme, set up thimble shift-out mechanism and can shift out the thimble after the welding, prepare for the surface treatment process of thimble.
The invention is further configured to: the clamping and welding mechanism further comprises an upright post for supporting the clamping cylinder; and the clamping and welding mechanisms are provided with two sets, wherein one set is fixed on the workbench, and the other set is fixed on the guide sliding block.
By adopting the technical scheme, the thimble rod and the thimble cap are respectively clamped on the two sets of clamping and welding mechanisms so as to facilitate butt joint and welding fixation of the thimble rod and the thimble cap.
The invention is further configured to: the thimble rod moving-in mechanism further comprises a thimble rod guide plate and a thimble rod lifting plate; the ejector pin rod guide plate is obliquely fixed on the rear wall of the workbench, and the ejector pin rod lifting cylinder is fixedly arranged on the rear wall of the workbench and positioned below the ejector pin rod guide plate; the thimble rod lifting plate is fixed with a piston rod of the thimble rod lifting cylinder, and when the piston rod of the thimble rod lifting cylinder stretches out and draws back, the thimble rod lifting plate is attached to the rear wall of the workbench and moves along the vertical direction and can pass through the thimble rod guide plate.
By adopting the technical scheme, the ejector pin rod guide plate can assist in transferring the ejector pin rod positioned at the ejector pin rod guide plate to the positioning plate when the ejector pin rod lifting plate ascends and descends in the vertical direction.
The invention is further configured to: the top needle bar can roll down to the positioning plate from the inclined plate when the top needle bar lifts the top needle bar to the inclined plate; a rotating rod parallel to the length direction of the inclined plate is arranged above the inclined plate, a plurality of check blocks are fixedly connected to the rotating rod, and the bottom of one check block is provided with a pressure sensor; when the block is kept in a vertical state, only one thimble rod can be placed between the block and the inclined plate; the rotary table is characterized in that a fixing plate is arranged on the working table, two ends of the rotary rod are rotatably connected with the fixing plate, a motor for driving the rotary rod to rotate is further arranged on the working table, and a signal output end of the pressure sensor is electrically connected with a signal input end of the motor.
By adopting the technical scheme, the ejector pin rod moving-in mechanism can be ensured to only move one ejector pin rod at a time when in work, and when the ejector pin rod extrudes the stop block at the inclined plate, the stop block can be rotated and lifted by triggering the motor through the pressure sensor.
The invention is further configured to: and a proximity switch is arranged on the positioning plate, the induction head of the proximity switch abuts against the angle-approaching groove, and the signal output end of the proximity switch is electrically connected to the signal input end of the ejector pin rod propelling cylinder and the ejector pin cap propelling cylinder. When the ejector pin rod falls into the resisting surface along the guide inclined plane, the proximity switch can trigger the ejector pin rod propelling cylinder and the ejector pin cap propelling cylinder to respectively push the ejector pin rod and the ejector pin cap to the groove so as to clamp and weld the electrode in the subsequent process.
The invention is further configured to: the upper end face of the thimble lifting plate inclines downwards along one side far away from the workbench, and when the thimble lifting plate rises to lift the thimble and the thimble leaves the locating plate, the thimble can roll along the upper end face of the thimble lifting plate and move out.
Through adopting above-mentioned technical scheme, when the thimble was lifted and is left the locating plate, the thimble can roll along the up end of thimble lifting plate and move out under the action of gravity.
The invention is further configured to: and a controller for controlling the automatic welding device to work is arranged in the workbench.
By adopting the technical scheme, the controller controls the cylinders and the clamping electrodes in the automatic welding device to work orderly.
In conclusion, the beneficial technical effects of the invention are as follows:
1. compared with the traditional process, the processing method provided by the invention has the advantages that the working procedures are less, the working procedures can be independently operated, the processing method is suitable for automatic production, and the production efficiency can be obviously improved;
2. through setting up thimble bar immigration mechanism and thimble cap immigration mechanism, can transfer the thimble bar and the thimble cap that batch production is good to two clamping surfaces of pneumatic butt-joint mechanism respectively, make things convenient for follow-up butt joint and welding work of pneumatic butt-joint mechanism, the thimble of setting shift-out mechanism can lift the thimble after the welding and shift out, prepares for the surface treatment process of thimble.
Drawings
FIG. 1 is a schematic diagram of a structure of a thimble of a mold in the prior art;
FIG. 2 is a schematic structural diagram of an automatic welding device for ejector pins of a mold according to the present embodiment;
FIG. 3 is a schematic view of the structure of the pneumatic butt-welding mechanism in the present embodiment;
FIG. 4 is a schematic structural view of the ejector pin shaft moving-in mechanism in the present embodiment;
FIG. 5 is a positional relationship diagram of the needle-ejecting cap moving-in mechanism in the present embodiment;
FIG. 6 is an enlarged schematic view of portion A of FIG. 5;
FIG. 7 is a schematic structural diagram of the thimble removing mechanism in this embodiment.
In the figure, 10, a workbench; 20. a pneumatic butt-welding mechanism; 21. a clamping cylinder; 22. a column; 23. clamping the electrode; 24. a clamping surface; 241. a groove; 25. a guide slider; 26. the slide block propels the cylinder; 30. a plunger rod moving-in mechanism; 31. a thimble rod lifting cylinder; 32. a thimble rod lifting plate; 33. a thimble rod guide plate; 331. a side plate; 34. a sloping plate; 35. a fixing plate; 36. a rotating rod; 361. a stopper; 362. a pressure sensor; 37. positioning a plate; 371. a vertex angle; 3711. a guide slope; 3712. a resisting surface; 372. a proximity switch; 38. the ejector pin rod pushes the cylinder; 39. a motor; 391. advancing the column; 40. a thimble cap moving-in mechanism; 41. the thimble cap propels the cylinder; 42. a thimble cap guide plate; 43. an inner bore; 44. a first mounting plate; 50. a thimble moving-out mechanism; 51. a thimble lifting cylinder; 52. a thimble lifting plate; 53. a second mounting plate; 60. a controller; 70. a thimble; 71. a thimble cap; 72. a thimble rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): the invention provides a processing method of a mold thimble, wherein the thimble comprises a thimble rod and a thimble cap positioned at the end part of the thimble rod, and the processing method comprises the following steps:
a1, selecting a 303Cu stainless steel bar meeting the size requirement as a thimble rod material according to the drawing size;
a2, machining the 303Cu stainless steel bar in the step a1 by a heart-walking machine according to the drawing size and producing an ejector pin rod in batch;
a3, selecting a 303Cu stainless steel bar meeting the size requirement as a thimble cap bar material according to the drawing size;
a4, machining the 303Cu stainless steel bar in the step a3 by a heart-walking machine according to the drawing size, and producing the thimble caps in batches;
a5, performing butt-welding connection on the thimble rod and the thimble cap in the step by adopting a pneumatic butt-welding mechanism to form a crude thimble;
a6, grinding and polishing the protruding welding points generated at the butt-welding part of the crude thimble according to the drawing size requirement to form a finished thimble;
a7, detecting whether the finished product thimble meets the precision requirement, cleaning and oiling the qualified thimble, and finally obtaining the thimble.
The present invention also provides an automatic welding device for mold ejector pins, as shown in fig. 2, comprising a worktable 10, a pneumatic butt-welding mechanism 20, an ejector pin rod moving-in mechanism 30, an ejector pin cap moving-in mechanism 40, an ejector pin moving-out mechanism 50 and a controller 60, wherein the controller 60 is disposed in the worktable 10.
As shown in fig. 3, the pneumatic butt-welding mechanism 20 is mounted on the table 10, and the pneumatic butt-welding mechanism 20 includes a clamp welding mechanism for fixing and welding the thimble rod and the thimble cap, and a pushing mechanism for driving the thimble cap to abut against each other. The propelling mechanism comprises a slide block propelling cylinder 26 and a guide slide block 25, a cylinder body of the slide block propelling cylinder 26 is fixed on the workbench 10, a piston rod of the slide block propelling cylinder 26 is fixedly connected with the guide slide block 25, and the guide slide block 25 is connected with the workbench 10 in a sliding mode. The clamping and welding mechanism is provided with two sets, each set of clamping and welding mechanism comprises a clamping electrode 23, a clamping cylinder 21 and an upright post 22, the cylinder body of the clamping cylinder 21 is installed on the upright post 22, and the piston rod of the clamping cylinder 21 is fixedly connected with the clamping electrode 23. One set of clamping and welding mechanism is fixed on the workbench 10 through the upright post 22, the other set of clamping and welding mechanism is fixed on the guide slide block 25 through the upright post 22, clamping surfaces 24 opposite to the clamping electrodes 23 are arranged on the workbench 10 and the guide slide block 25, and grooves 241 are formed in the clamping surfaces 24.
As shown in fig. 4, the ejector pin moving-in mechanism 30 includes an ejector pin guide plate 33, an ejector pin lift cylinder 31, an ejector pin lift plate 32, an inclined plate 34, a positioning plate 37, an ejector pin pushing cylinder 38, and a proximity switch 372. The ejector pin rod guide plate 33 is held by two side plates 331 and fixed obliquely to the rear wall of the table 10, and the ejector pin rod lift cylinder 31 is fixed to the rear wall of the table and located below the ejector pin rod guide plate 33. The top of the ejector pin rod lifting plate 32 is inclined downward in the direction of the workbench 10, the ejector pin rod lifting plate 32 is fixed to the piston rod of the ejector pin rod lifting cylinder 31, and when the piston rod of the ejector pin rod lifting cylinder 31 extends and retracts, the ejector pin rod lifting plate 32 moves in the vertical direction while being attached to the back wall of the workbench and can pass through the ejector pin rod guide plate 33.
As shown in fig. 4, the sloping plate 34 is placed on the workbench 10, the back edge of the sloping plate 34 is arranged flush with the back edge of the workbench 10, and the top edge of the sloping plate 34 is inclined downwards along the side close to the workbench 10; a rotating rod 36 parallel to the length direction of the inclined plate 34 is arranged above the inclined plate 34, a plurality of stoppers 361 are fixedly connected to the rotating rod 36, and when the stoppers 361 are kept in a vertical state, only one thimble rod can be placed between the stoppers 361 and the inclined plate 34; the fixed plate 35 is fixed on the workbench 10, two ends of the rotating rod 36 are rotatably connected with the fixed plate 35, the motor 39 for driving the rotating rod 36 to rotate is further installed on the workbench 10, a pressure sensor 362 is arranged at one side of the bottom of one of the stoppers 361, which is close to the ejector pin rod lifting plate 32, and a signal output end of the pressure sensor 362 is electrically connected with a signal input end of the motor 39.
As shown in fig. 4, the positioning plate 37 is fixed on the worktable 10 and disposed on a side of the clamping electrode 23 away from the slider pushing cylinder 26, an angle groove 371 for guiding and stabilizing the ejector pin rod is formed on the positioning plate 37, the angle groove 371 is composed of a guiding inclined surface 3711 obliquely disposed on the positioning plate and a vertically disposed resisting surface 3712, and a boundary line between the guiding inclined surface 3711 and the resisting surface 3712 is located in an opening direction of the groove 241; the proximity switch 372 is fixed on the positioning plate 37, the sensing head of the proximity switch 372 abuts against the corner groove 371, the ejector rod pushing cylinder 38 is arranged on one side of the positioning plate 37, which is far away from the clamping electrode 23, the cylinder body of the ejector rod pushing cylinder 38 is fixed on the workbench 10, the piston rod of the ejector rod pushing cylinder 38 is coaxially connected with a pushing column 391, and the pushing column 391 is used for pushing the ejector rod located at the corner groove 371 to the groove 241 and then is clamped and fixed by the clamping electrode 23.
As shown in fig. 5, the upright post 22 on the guiding slider 25 is vertically disposed, and an inner hole 43 communicated with the groove 241 penetrates through the upright post 22, the inner hole 43 can accommodate a thimble cap, the thimble cap moving mechanism 40 is fixed on one side of the upright post 22 away from the groove 241, and the thimble cap can be moved to the groove 241 by the thimble cap moving mechanism 40.
As shown in fig. 6, the thimble cap moving-in mechanism 40 includes a thimble cap guide plate 42 and a thimble cap pushing cylinder 41, the thimble cap guide plate 42 is an L-shaped folded plate with one end blocked, and the width of the thimble cap guide plate is slightly larger than the thickness of the thimble cap, the thimble cap guide plate 42 is attached to the side wall of the column 22 and is obliquely arranged and can be used for placing the thimble cap and guiding the thimble cap to the port of the inner hole 43, the cylinder body of the thimble cap pushing cylinder 41 is fixed on the side wall of the column 22 through a first mounting plate 44, and the piston rod of the thimble cap pushing cylinder 41 penetrates through the thimble cap guide plate 42 and stretches along the inner hole 43, wherein the diameter of the piston rod is smaller than the diameter of the thimble cap.
As shown in fig. 7, the pin removing mechanism 50 includes a pin lifting cylinder 51 and a pin lifting plate 52. The cylinder body of the thimble lifting cylinder 51 is fixed on the side wall of the workbench 10 through a second mounting plate 53, the piston rod of the thimble lifting cylinder 51 is fixedly connected with a thimble lifting plate 52, the thimble lifting plate 52 is of a v-21274h-shaped structure, the thimble lifting plate 52 is staggered with the positioning plate 37 and is movably arranged in the vertical direction of the positioning plate 37, and the upper end surface of the thimble lifting plate 52 is inclined downwards along one side far away from the workbench 10.
The implementation principle of the embodiment is as follows: in the initial state, the upper edge of the ejector pin rod lifting plate 32 is slightly lower than the bottom end of the ejector pin rod guide plate 33, and the mass-produced ejector pins and ejector pin caps are respectively placed on the ejector pin rod guide plate 33 and the ejector pin cap guide plate 42, and the ejector pins and the ejector pin caps respectively fall into the top of the ejector pin rod lifting plate 32 and the port of the inner hole 43 under the action of gravity.
Starting the automatic welding device, the controller 60 controls the ejector pin rod lifting cylinder 31 to drive the ejector pin rod lifting plate 32 to the inclined plate 34, a single ejector pin rod rolls to the inclined plate 34 and is supported by the stop 361, the ejector pin rod lifting plate 32 descends to the initial height, the ejector pin rod on the inclined plate 34 touches the pressure sensor 362 on the stop 361 and triggers the motor 39 to rotate, the stop 361 rotates and lifts along with the rotating rod 36, the ejector pin rod rolls to the corner groove 371 of the positioning plate 37, the proximity switch 372 senses the ejector pin rod and gives signals to the ejector pin rod pushing cylinder 38 and the ejector pin cap pushing cylinder 41, the two push the ejector pin rod and the ejector pin cap to the groove 241 of the clamping surface 24 opposite to the two clamping electrodes 23 respectively, the controller 60 controls the slider pushing cylinder 26 to push the guide slider 25 to realize butt joint of the ejector pin rod and the ejector pin cap, the clamping electrodes 23 descend, clamp and discharge and weld under the driving of the clamping cylinder 21, after welding, the clamping electrode 23 is lifted, the controller 60 controls the thimble lifting cylinder 51 to lift the thimble lifting plate 52, when the thimble lifting plate 52 is lifted until the thimble leaves the positioning plate 37, the thimble can roll and move out along the upper end surface of the thimble lifting plate 52, and a single welding cycle of the automatic welding device is completed.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. An automatic welding device for ejector pins of a die is characterized by comprising a workbench (10), a pneumatic butt-welding mechanism (20) arranged on the workbench (10), an ejector pin rod moving-in mechanism (30) used for transferring an ejector pin rod to the pneumatic butt-welding mechanism (20), and an ejector pin cap moving-in mechanism (40) used for transferring an ejector pin cap to the pneumatic butt-welding mechanism (20);
the pneumatic butt-welding mechanism (20) comprises a clamping and welding mechanism for fixing and welding the thimble rod and the thimble cap and a propelling mechanism for driving the thimble cap to be butted, the clamping and welding mechanism comprises a clamping electrode (23) for clamping and fixing the thimble rod or the thimble cap and a clamping cylinder (21) for controlling the clamping electrode (23) to be clamped relatively, the clamping electrode (23) is opposite to a clamping surface (24), and a groove (241) is formed in the clamping surface (24); the propelling mechanism comprises a sliding block propelling cylinder (26) and a guide sliding block (25) fixed on a piston rod of the sliding block propelling cylinder (26), and a cylinder body of the sliding block propelling cylinder (26) is fixed on the workbench (10);
the ejector pin rod moving-in mechanism (30) comprises a positioning plate (37) and an ejector pin rod propelling cylinder (38); the positioning plate (37) is fixed on the workbench (10) and arranged on one side of the clamping electrode (23), and an angle groove (371) which plays a role in guiding and stabilizing the thimble rod is formed in the positioning plate (37); the corner groove (371) is composed of a guide inclined plane (3711) and a resisting plane (3712), and the boundary line between the guide inclined plane (3711) and the resisting plane (3712) is positioned in the opening direction of the groove (371); the cylinder body of the ejector pin rod pushing cylinder (38) is fixed on the workbench (10) and arranged on one side of the positioning plate (37) far away from the clamping electrode (23), and a piston rod of the ejector pin rod pushing cylinder (38) is coaxially connected with a pushing column (391) used for pushing the ejector pin rod into the groove (241);
the thimble cap moving-in mechanism (40) comprises a thimble cap guide plate (42) and a thimble cap pushing cylinder (41), the thimble cap guide plate (42) is used for placing the thimble cap and guiding the thimble cap to the groove (241) or an extension line thereof, and the thimble cap pushing cylinder (41) is used for pushing the thimble cap until the thimble cap is flush with the end part of the groove (241);
an inclined plate (34) is arranged on the workbench (10), the rear edge of the inclined plate (34) is flush with the rear edge of the workbench (10), the top edge of the inclined plate (34) inclines downwards at one side close to the workbench (10), and when the ejector pin rod lifting plate (32) lifts the ejector pin rod to the inclined plate (34), the ejector pin rod can roll down to the positioning plate (37) through the inclined plate (34); a rotating rod (36) parallel to the length direction of the inclined plate (34) is arranged above the inclined plate (34), a plurality of blocks (361) are fixedly connected to the rotating rod (36), and a pressure sensor (362) is arranged at the bottom of one block (361); when the block (361) is kept in a vertical state, only one thimble rod can be placed between the block (361) and the sloping plate (34); be provided with fixed plate (35) on workstation (10), the both ends and fixed plate (35) of bull stick (36) rotate to be connected, still be provided with drive bull stick (36) pivoted motor (39) on workstation (10), the signal output part of pressure sensor (362) is connected with the signal input part electricity of motor (39).
2. The automatic welding device for the ejector pins of the die as set forth in claim 1, wherein: the thimble removing mechanism (50) is used for removing the welded thimble; the thimble moving-out mechanism (50) comprises a thimble lifting plate (52) and a thimble lifting cylinder (51), a cylinder body of the thimble lifting cylinder (51) is relatively fixed with the workbench (10), and a piston rod of the thimble lifting cylinder (51) is fixedly connected with the thimble lifting plate (52); the thimble lifting plate (52) is movably arranged in the vertical direction of the positioning plate (37).
3. The automatic welding device for the ejector pins of the die as set forth in claim 1, wherein: the clamping and welding mechanism further comprises a stand column (22) for supporting a clamping cylinder (21); the clamping and welding mechanism is provided with two sets, wherein one set is fixed on the workbench (10), and the other set is fixed on the guide sliding block (25).
4. The automatic welding device for the ejector pins of the die as set forth in claim 1, wherein: the ejector pin rod moving-in mechanism (30) further comprises an ejector pin rod guide plate (33) and an ejector pin rod lifting plate (32); the ejector pin rod guide plate (33) is obliquely fixed on the rear wall of the workbench (10), and the ejector pin rod lifting cylinder (31) is fixedly arranged on the rear wall of the workbench and is positioned below the ejector pin rod guide plate (33); the ejector pin rod lifting plate (32) is fixed with a piston rod of the ejector pin rod lifting cylinder (31), and when the piston rod of the ejector pin rod lifting cylinder (31) stretches out and draws back, the ejector pin rod lifting plate (32) is attached to the rear wall of the workbench and moves along the vertical direction, and can pass through the ejector pin rod guide plate (33).
5. The automatic welding device for the ejector pins of the die as set forth in claim 1, wherein: a proximity switch (372) is mounted on the positioning plate (37), an induction head of the proximity switch (372) is close to the corner groove (371), and a signal output end of the proximity switch (372) is electrically connected to a signal input end of the ejector pin rod propelling cylinder (38) and an ejector pin cap propelling cylinder (41).
6. The automatic welding device for the ejector pins of the die as set forth in claim 1, wherein: the upper end surface of the thimble lifting plate (52) inclines downwards along one side far away from the workbench (10), and when the thimble lifting plate (52) ascends to lift the thimble until the thimble leaves the positioning plate (37), the thimble can roll along the upper end surface of the thimble lifting plate (52) and move out.
7. The automatic welding device for the ejector pins of the die as set forth in claim 1, wherein: and a controller (60) for controlling the automatic welding device to work is arranged in the workbench (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253545.6A CN110039163B (en) | 2019-03-30 | 2019-03-30 | Mould ejector pin machining method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910253545.6A CN110039163B (en) | 2019-03-30 | 2019-03-30 | Mould ejector pin machining method and device |
Publications (2)
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| JP4007496B2 (en) * | 2002-07-15 | 2007-11-14 | パンチ工業株式会社 | Resin molding pin and manufacturing method thereof |
| DE102006035927A1 (en) * | 2006-07-31 | 2008-02-14 | Drei-S-Werk Präzisionswerkzeuge GmbH & Co Fertigungs-KG | Tool pin for a tool mold and method for producing such a tool pin |
| CN201012426Y (en) * | 2007-01-22 | 2008-01-30 | 宁波新州焊接设备有限公司 | Butt welding machine |
| CN101596644B (en) * | 2009-06-23 | 2011-06-22 | 宁波新州焊接设备有限公司 | Full-automatic screw welder |
| CN203063007U (en) * | 2013-02-21 | 2013-07-17 | 滁州亚利模具设备有限公司 | Mold ejector pin |
| CN105397257B (en) * | 2015-12-09 | 2017-09-26 | 金焊机械（太仓）有限公司 | A kind of efficient automatic butt-welding machine and its method of work |
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