CN209699908U - A kind of stroke conversion equipment of pull-down punching machine - Google Patents

A kind of stroke conversion equipment of pull-down punching machine Download PDF

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Publication number
CN209699908U
CN209699908U CN201822232483.4U CN201822232483U CN209699908U CN 209699908 U CN209699908 U CN 209699908U CN 201822232483 U CN201822232483 U CN 201822232483U CN 209699908 U CN209699908 U CN 209699908U
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CN
China
Prior art keywords
connecting rod
parallel
hole
parallel sleeve
eccentric crankshaft
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CN201822232483.4U
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Chinese (zh)
Inventor
褚岳辉
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NINGBO GOANWIN MACHINERY CO Ltd
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NINGBO GOANWIN MACHINERY CO Ltd
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Priority to CN201822232483.4U priority Critical patent/CN209699908U/en
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Abstract

A kind of stroke conversion equipment of pull-down punching machine, including rack, driving mechanism includes the connecting rod that can be moved up and down, connecting rod is fixedly connected with balancer, eccentric crankshaft is worn among connecting rod, the first parallel sleeve is provided between eccentric crankshaft and connecting rod, bearing block is arranged in the right side of eccentric crankshaft, second parallel sleeve is set between bearing block and eccentric crankshaft, two rows parallel hole is provided on second parallel sleeve, during rotating the second parallel sleeve, changed by the relative position of parallel hole, changes eccentric crankshaft to the eccentricity of connecting rod.The utility model has the following beneficial effects: fixed after being changed by the relative position in the hole on the first parallel sleeve and the second parallel sleeve, change eccentric arm of the eccentric crankshaft to connecting rod of script, it is easy to operate light to change stroke, it is not easy to error and damage.

Description

A kind of stroke conversion equipment of pull-down punching machine
Technical field
The utility model belongs to punching machine field, and in particular to a kind of stroke conversion equipment of pull-down punching machine.
Background technique
The power of present punching machine or press machine is all overhead, and undershoot block is pushed and is driven, can make undershoot in this way Stroke is short, and lower pressure is not strong enough, unstable, is easy to appear shake deviation, work quality is not high.Moreover, the structure of power overhead Layout is also not reasonable, requires height to frame strength, is laid out not compact.
The punch with lower-positioned power of Patent No. CN200620104552.8 uses pull-down and drives, power source and biography Motivation structure is arranged in bottom of the frame, realizes that the variation of stroke, operation are tired by the variation of the relative position of crankshaft and driving wheel Difficulty is easy crankshaft wear or to make a mess of in operation, lose more than gain, and replaces very heavy when position, adjusts position Set inconvenience.
And the discharging of existing punch with lower-positioned power upper end is all that the waste material of punching press is fallen together with the components of punching press, It cannot be distinguished, need subsequent artefacts individually to separate, further increase artificial difficulty, reduce efficiency.
Summary of the invention
Aiming at the shortcomings in the prior art, the utility model provides a kind of stroke conversion equipment of pull-down punching machine, to solve It is difficult that the punching machine of certainly existing pull-down changes stroke operation, and when adjusting is very heavy, and waste material and components are difficult when discharging The problem of to separate.
The utility model is achieved through the following technical solutions.
Driving mechanism, institute is arranged in the bottom of a kind of stroke conversion equipment of pull-down punching machine, including rack, the rack The upper end for the rack stated is provided with sliding block, and four sides of the sliding block are fixedly connected with guide post, and the guide post is arrived across workbench Up to balancer, the top of the balancer connects driving mechanism, and the driving mechanism includes the connecting rod that can be moved up and down, institute The connecting rod stated is fixedly connected with balancer, eccentric crankshaft is worn among the connecting rod, between the eccentric crankshaft and connecting rod It is provided with the first parallel sleeve, the right side of the eccentric crankshaft is arranged bearing block, sets between the bearing block and eccentric crankshaft The second parallel sleeve is set, is provided with two rows parallel hole on second parallel sleeve, during rotating the second parallel sleeve, is led to The relative position variation for crossing parallel hole changes eccentric crankshaft and the eccentricity of connecting rod, the workbench and rack is fixedly installed, Material-dropping hole is provided on the workbench, the size of the material-dropping hole is greater than the size of components, the workbench Blanking mechanism is arranged in lower section, and the blanking mechanism includes upper layer feeding plate and lower layer's feeding plate, in the upper layer feeding plate Between be provided with through-hole, the through-hole is connected to lower layer's feeding plate, and waste material falls in through-hole and fallen by lower layer's feeding plate, finished product Part is fallen from upper layer feeding plate, and flexible shifting-position mechanism, the flexible gear are arranged between the workbench and blanking mechanism Mechanism includes two retractable doors, and the retractable door is controlled by cylinder, and when retractable door is closed, part a part is blocked can not It falls, when retractable door is opened, part is fallen.It can be realized the stroke conversion of simplification, lighting, and finished parts and waste material It separates, reduces separating step, substantially increase production efficiency.
Preferably, the side of second parallel sleeve is provided with slotting rod hole, force is driven after rod is inserted into slotting rod hole Second parallel sleeve is rotated along axle center.It can be rotated with hand directly against the veneer of the second parallel sleeve, increasing rod can Increase torque, it is more laborsaving.
Preferably, baffle is arranged in the end face of second parallel sleeve, it is provided with U-shaped opening on the baffle, institute The U-shaped opening stated is for being directed at parallel hole.U-shaped hole openings at one side is more convenient operation.
Preferably, eccentricity balance-weight block is arranged in the left side of the connecting rod.The counteracting of power is carried out, not so the right side of eccentric crankshaft Side is painstaking always, has an impact to entire service life of a machine.
Preferably, driving wheel is arranged in the left side of the eccentricity balance-weight block, the driving wheel is controlled by belt pulley.
Compared with prior art: solid after being changed by the relative position in the hole on the first parallel sleeve and the second parallel sleeve It is fixed, change eccentric arm of the eccentric crankshaft to connecting rod of script, it is easy to operate light to change stroke, it is not easy to error and Damage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the equal shaft side figures of the utility model.
Fig. 3 is the schematic diagram of second parallel sleeve of the utility model.
Fig. 4 is the main view of the utility model.
Fig. 5 is the schematic diagram of the blanking mechanism of the utility model.
Schematic diagram when Fig. 6 is the flexible shifting-position mechanism closure of the utility model.
Fig. 7 is schematic diagram when the flexible shifting-position mechanism of the utility model is opened.
Specific embodiment
With reference to the accompanying drawing with specific embodiment, the utility model is described further.
Driving mechanism, institute is arranged in the bottom of a kind of stroke conversion equipment of pull-down punching machine, including rack, the rack The upper end for the rack stated is provided with sliding block 1, and four sides of the sliding block 1 are fixedly connected with guide post 4, and the guide post 4 passes through work Platform 2 reaches balancer 8, and the top of the balancer 8 connects driving mechanism, and the driving mechanism includes that can move up and down Connecting rod 6, the connecting rod 6 are fixedly connected with balancer 8, and eccentric crankshaft, the eccentric crankshaft are worn among the connecting rod 6 Be provided with the first parallel sleeve 61 between connecting rod 6, the right side of the eccentric crankshaft is arranged bearing block 7, the bearing block 7 with Second parallel sleeve 9 is set between eccentric crankshaft, is provided with two rows parallel hole 91 on second parallel sleeve 9, is rotating During second parallel sleeve 9, changed by the relative position of parallel hole 91, changes eccentric crankshaft to the eccentricity of connecting rod 6, it is described Workbench 2 and rack be fixedly installed, be provided with material-dropping hole 23 on the workbench 2, the size of the material-dropping hole 23 is big In the size of components, blanking mechanism 11 is arranged in the lower section of the workbench 2, and the blanking mechanism 11 includes upper layer blanking Plate 111 and lower layer's feeding plate 112 are provided with through-hole 113 among the upper layer feeding plate 111, under the through-hole 113 is connected to Layer feeding plate 112, waste material fall in through-hole 113 and are fallen by lower layer's feeding plate 112, and finished parts fall from upper layer feeding plate 111 It falls, flexible shifting-position mechanism is set between the workbench 2 and blanking mechanism 11, the flexible shifting-position mechanism includes two and stretches Contracting door 21, the retractable door 21 are controlled by cylinder 22, and when retractable door 21 is closed, part a part, which is blocked, to be fallen, When retractable door 21 is opened, part is fallen, and the side of second parallel sleeve 9 is provided with slotting rod hole, after rod is inserted into slotting rod hole Force drives the second parallel sleeve 9 to rotate along axle center, and baffle 10, the baffle is arranged in the end face of second parallel sleeve 9 U-shaped opening is provided on 10, eccentrically mounted weight is arranged for being directed at parallel hole 91, the left side of the connecting rod 6 in the U-shaped opening Driving wheel is arranged in block 5, the left side of the eccentricity balance-weight block 5, and the driving wheel is controlled by belt pulley.
In use, external driving motor starting, drives belt pulley rotation, and belt pulley is connected to eccentric crankshaft On, eccentric crankshaft rotation is driven, the middle position of eccentric crankshaft is arranged with connecting rod 6, and eccentric crankshaft is in rotary course, connecting rod 6 Move up and down, in motion process, connecting rod 6 connect with balancer 8, and balancer 8 drives 4 guide posts 3 to move up and down, guide post 3 with slide Block 1 is fixedly connected, and sliding block 1 is slided up and down relative to workbench 2.
When needing to change stroke, stop lathe and use, after power-off, adjusts and be arranged second between bearing block 7 and eccentric crankshaft The position of parallel sleeve 9, in the slotting rod hole of the side of the second parallel sleeve 9, force drives the second parallel sleeve 9 after rod is inserted into slotting rod hole It is rotated along axle center, is provided with two rows parallel hole 91 on the second parallel sleeve 9, during rotating the second parallel sleeve 9, passed through The relative position of parallel hole 91 changes, and changes eccentric crankshaft to the eccentricity of connecting rod 6, the second parallel sleeve 9 and eccentric crankshaft and company 61 relative position of the first parallel sleeve being arranged between bar 6 changes, and is also equipped with multiple holes on the first parallel sleeve 61, this some holes It is fixed after being aligned with parallel hole 91 with bolt, completes to adjust cooperation, after the completion of cooperation, stroke alteration restarts motor.
In punching course, components are placed on workbench 2, are provided with material-dropping hole 23 on workbench 2, material-dropping hole it is big The small size greater than components, but contracting shifting-position mechanism includes two retractable doors 21 at this time, the retractable door 21 passes through cylinder 22 controls, when retractable door 21 is closed, part a part, which is blocked, to be fallen, and sliding block 1 is downward against workbench 2 at this time, sliding block 1 It is equivalent to formed punch, part is gone out waste material and required finished parts, waste material falls from material-dropping hole 23 at this time, and finished parts are due to body Product is still blocked by retractable door 21, and retractable door is opened under the control of cylinder 22 at this time, and material-dropping hole 23 absolutely not stops, this When finished parts fall.
Waste material is fallen on blanking mechanism 11, and blanking mechanism 11 includes upper layer feeding plate 111 and lower layer's feeding plate 112, institute Through-hole 113 is provided among the upper layer feeding plate 111 stated, the through-hole 113 is connected to lower layer's feeding plate 112, and waste material is fallen to It is fallen in through-hole 113 by lower layer's feeding plate 112, finished parts are fallen from upper layer feeding plate 111, due to 111 He of upper layer feeding plate Lower layer's feeding plate 112 is both provided with inclined guide rail, under the mutual impact effect of material one by one, slides into inclination automatically Guide rail on, eventually arrive at blanking frame, realize the separation of material, save artificial operation.
The protection scope of the utility model includes but is not limited to embodiment of above, and the protection scope of the utility model is to weigh Subject to sharp claim, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that are each fallen within The protection scope of the utility model.

Claims (5)

1. a kind of stroke conversion equipment of pull-down punching machine, including rack, driving mechanism is arranged in the bottom of the rack, described The upper end of rack be provided with sliding block (1), four sides of the sliding block (1) are fixedly connected guide post (4), and the guide post (4) is worn It crosses workbench (2) and reaches balancer (8), the top of the balancer (8) connects driving mechanism, which is characterized in that described Driving mechanism includes the connecting rod (6) that can be moved up and down, and the connecting rod (6) is fixedly connected with balancer (8), the connecting rod (6) intermediate to wear eccentric crankshaft, the first parallel sleeve (61) are provided between the eccentric crankshaft and connecting rod (6), described is inclined Bearing block (7) are arranged in the right side of innermost being axis, are arranged between the bearing block (7) and eccentric crankshaft the second parallel sleeve (9), described The second parallel sleeve (9) on be provided with two rows parallel hole (91), during rotating the second parallel sleeve (9), by parallel The relative position in hole (91) changes, and changes eccentric crankshaft to the eccentricity of connecting rod (6).
2. the stroke conversion equipment of a kind of pull-down punching machine according to claim 1, which is characterized in that described second The side of parallel sleeve (9) is provided with slotting rod hole, and force drives the second parallel sleeve (9) to revolve along axle center after rod is inserted into rod hole Turn.
3. the stroke conversion equipment of a kind of pull-down punching machine according to claim 1, which is characterized in that described second Baffle (10) are arranged in the end face of parallel sleeve (9), are provided with U-shaped opening on the baffle (10), the U-shaped opening for pair Quasi-parallel hole (91).
4. the stroke conversion equipment of a kind of pull-down punching machine according to claim 1, which is characterized in that the connecting rod (6) eccentricity balance-weight block (5) are arranged in left side.
5. a kind of stroke conversion equipment of pull-down punching machine according to claim 4, which is characterized in that the bias Driving wheel is arranged in the left side of clump weight (5), and the driving wheel is controlled by belt pulley.
CN201822232483.4U 2018-12-28 2018-12-28 A kind of stroke conversion equipment of pull-down punching machine Active CN209699908U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822232483.4U CN209699908U (en) 2018-12-28 2018-12-28 A kind of stroke conversion equipment of pull-down punching machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822232483.4U CN209699908U (en) 2018-12-28 2018-12-28 A kind of stroke conversion equipment of pull-down punching machine

Publications (1)

Publication Number Publication Date
CN209699908U true CN209699908U (en) 2019-11-29

Family

ID=68637467

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822232483.4U Active CN209699908U (en) 2018-12-28 2018-12-28 A kind of stroke conversion equipment of pull-down punching machine

Country Status (1)

Country Link
CN (1) CN209699908U (en)

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