CN209756145U - Lever type punch press - Google Patents
Lever type punch press Download PDFInfo
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- CN209756145U CN209756145U CN201822091370.7U CN201822091370U CN209756145U CN 209756145 U CN209756145 U CN 209756145U CN 201822091370 U CN201822091370 U CN 201822091370U CN 209756145 U CN209756145 U CN 209756145U
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Abstract
The utility model discloses a lever type punch press, which comprises a lathe bed, a workbench, a crankshaft, a first connecting rod, a lever mechanism, a second connecting rod, a slide block and a motor component for driving the crankshaft to rotate; the crankshaft is rotationally connected to the upper end of the lathe bed, and the first connecting rod is rotatably sleeved on the crankshaft; one end of a swing arm of the lever mechanism is rotatably connected with the first connecting rod, and the other end of the swing arm of the lever mechanism is rotatably connected with the upper end of the second connecting rod; the sliding block is fixedly connected to the bottom of the second connecting rod. The adjusting mechanism adjusts the height of a fulcrum of the lever mechanism, or adjusts the distance from the axle center of the first connecting rod connected with the crankshaft to the axle center of the first connecting rod connected with the swing arm, or adjusts the distance from the bottom of the second connecting rod to the axle center of the second connecting rod connected with the swing arm.
Description
Technical Field
The utility model belongs to the technical field of the punch press technique and specifically relates to an accurate lever precision punch press is related to.
Background
the existing punching machine is designed to directly adopt a crankshaft or an eccentric gear to drive a sliding block to move, and the driving mode needs larger driving force to achieve the purpose of punching, so that more electric quantity is consumed.
The Chinese patent '201610075621 precision lever type punching machine' discloses a lever type punching machine, which adopts a mode of combining an eccentric block and a swing arm to drive a slide block, has small demand on power under the same impact force and saves electric energy; a swing arm shaft of the swing arm is close to one side of the transmission connecting rod to form a lever, and large output power can be obtained under the action of small input power, so that the electric energy consumption is further saved.
However, when the punching machine works, due to factors such as assembly precision, inertia, temperature and humidity, and the like, the repeated positioning precision of the bottom dead center of the sliding block is low, and the punching requirement of high-precision parts cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a lever type punch.
The technical scheme of the utility model as follows:
A lever type punch comprises a punch body, a workbench, a crankshaft, a first connecting rod, a lever mechanism, a second connecting rod, a sliding block and a motor assembly for driving the crankshaft to rotate; the crankshaft is rotationally connected to the upper end of the lathe bed, and the first connecting rod is rotatably sleeved on the crankshaft; one end of a swing arm of the lever mechanism is rotatably connected with the first connecting rod, and the other end of the swing arm of the lever mechanism is rotatably connected with the upper end of the second connecting rod; the sliding block is fixedly connected to the bottom of the second connecting rod; the motor assembly drives the crankshaft to rotate, and pushes the swing arm of the lever mechanism to swing through the first connecting rod, so that the second connecting rod moves up and down along the guide hole of the lathe bed. The adjusting mechanism adjusts the height of a fulcrum of the lever mechanism, or adjusts the distance from the axle center of the first connecting rod connected with the crankshaft to the axle center of the first connecting rod connected with the swing arm, or adjusts the distance from the bottom of the second connecting rod to the axle center of the second connecting rod connected with the swing arm.
Preferably, the supporting shaft of the lever mechanism is rotatably connected with the lathe bed; the adjusting mechanism comprises a flange part arranged on the supporting shaft and a rotating mechanism for driving the supporting shaft to rotate; the flange portion with the back shaft is eccentric form, the swing arm rotationally overlaps and is established on the flange portion.
Preferably, the rotating mechanism comprises a first motor, a driving wheel arranged on an output shaft of the first motor, a driven wheel connected with one end of the supporting shaft in a key manner, and a synchronous belt connecting the driving wheel and the driven wheel; the first motor is fixedly arranged at the upper end of the lathe bed.
Preferably, one end of the swing arm of the lever mechanism extends to form two parallel side plates, and the pivot shaft is pivoted with the lower ends of the swing arm and the first connecting rod; two ends of the pivot shaft are respectively connected with the side plates in a rotating way; the adjusting mechanism comprises a flange part arranged on the pivot shaft and a rotating mechanism for driving the pivot shaft to rotate; the flange part and the pivot shaft are in an eccentric shape, and the lower end of the first connecting rod is rotatably sleeved on the flange part.
Preferably, two parallel side plates extend from the other end of the swing arm of the lever mechanism, and a pivot shaft is pivoted with the upper ends of the swing arm and the second connecting rod; two ends of the pivot shaft are respectively connected with the side plates in a rotating way; the adjusting mechanism comprises a flange part arranged on the pivot shaft and a rotating mechanism for driving the pivot shaft to rotate; the flange part and the pivot shaft are in an eccentric shape, and the upper end of the second connecting rod is rotatably sleeved on the flange part.
Preferably, the rotating mechanism comprises a worm wheel, a worm, a mounting seat and a power mechanism; the worm wheel is arranged at one end of the pivoting shaft, the mounting seat is fixedly arranged on the outer side of one side plate, the worm is rotationally connected to the mounting seat, and the worm wheel is meshed with the worm; the power mechanism drives the worm to rotate, so that the pivot shaft rotates.
Preferably, the power mechanism comprises a telescopic transmission part, an input shaft and a motor assembly; one end of the telescopic transmission part is in key connection with the worm, the other end of the telescopic transmission part is in key connection with the input shaft, the input shaft is rotatably arranged on one side wall of the lathe bed, and one end of the input shaft is connected with the motor component.
Preferably, the motor assembly comprises a driven wheel, a driving wheel, a first motor and a synchronous belt; the driven wheel is connected with the input shaft through a key; the driving wheel is arranged on an output shaft of the first motor, and the synchronous belt is connected with the driving wheel and the driven wheel; the first motor is fixedly arranged on one side wall of the lathe bed.
Preferably, the adjustment amount of the bottom dead center of the slide block is 0.01-0.5 mm.
Preferably, the motor assembly comprises a second motor arranged at the upper end of the bed body, a second driving wheel arranged on an output shaft of the second motor, a clutch connected with one end key of the crankshaft, and a transmission belt connecting the clutch with the second driving wheel.
Compared with the prior art, the utility model has the advantages of it is following:
During actual use, according to a required bottom dead center position, the adjusting mechanism is controlled to drive the supporting shaft or the pivoting shaft to rotate, the height of a fulcrum of the lever mechanism is adjusted, or the distance from an axle center of the first connecting rod connected with the crankshaft to an axle center of the first connecting rod connected with the swing arm is adjusted, or the distance from the bottom of the second connecting rod to an axle center of the second connecting rod connected with the swing arm is adjusted, so that the accurate bottom dead center position of the sliding block is obtained. And slightly compensating the bottom dead center of the sliding block to an ideal position to meet the stamping requirement of high-precision parts.
Drawings
Fig. 1 is a schematic view of the punch press of the present invention.
3 FIG. 3 2 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 the 3 present 3 embodiment 3. 3
Fig. 3 is a schematic diagram of a lever mechanism in the first embodiment.
Fig. 4 is a schematic structural diagram of a support shaft according to a first embodiment of the present invention.
3 FIG. 3 5 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 the 3 present 3 embodiment 3. 3
Fig. 6 is a schematic structural diagram of the hub in the second embodiment and the third embodiment.
Fig. 7 is an enlarged view at C in fig. 5.
Fig. 8 is a cross-sectional view of fig. 7.
Fig. 9 is a schematic view of a lever mechanism in the second embodiment.
3 FIG. 3 10 3 is 3 a 3 sectional 3 view 3 of 3 the 3 third 3 embodiment 3 A 3- 3 A 3. 3
Fig. 11 is an enlarged view at B in fig. 10.
Fig. 12 is a cross-sectional view of fig. 11.
Fig. 13 is a schematic structural diagram of a lever mechanism in the third embodiment.
Detailed Description
Example one
Referring to fig. 1 and 2, a lever type punch press includes a bed 1, a table 2, a crankshaft 3, a first connecting rod 4, a lever mechanism 8, a second connecting rod 5, a slider 6 and a motor assembly 7 for driving the crankshaft to rotate; the lever mechanism 8 is arranged in a cavity at the upper end of the bed body 1.
The crankshaft 3 is rotatably connected to two side walls of the cavity. Specifically, both ends of the crankshaft 3 are connected to the side wall bearings. The first connecting rod 4 is rotatably sleeved on the crankshaft 3, and specifically, the upper end of the first connecting rod 4 is in bearing connection with the crankshaft 3. One end of a swing arm 81 of the lever mechanism 8 is rotatably connected with the first connecting rod 4, and the other end is rotatably connected with the upper end of the second connecting rod 5. The lower wall of the cavity is provided with a guide hole, and the lower end of the second connecting rod 5 is arranged in the guide hole in a sliding manner; the sliding block 6 is fixedly connected to the bottom of the second connecting rod 5; the slide 6 is arranged above the table 2.
The motor assembly 7 drives the crankshaft 3 to rotate, and pushes the swing arm 81 of the lever mechanism 8 to swing through the first connecting rod 4, so that the second connecting rod 5 moves up and down along the guide hole of the lathe bed 1.
Referring to fig. 1 and 4, the adjusting mechanism 9 adjusts the height of the fulcrum of the lever mechanism 8. The supporting shaft 82 of the lever mechanism 8 is rotatably connected with two side walls of the cavity, specifically, two ends of the supporting shaft 82 are connected with the side wall bearings, and one end of the supporting shaft penetrates through the side walls. The adjusting mechanism 9 includes a flange portion 91 provided on the support shaft 82 and a rotating mechanism for driving the support shaft 82 to rotate; the flange part 91 and the supporting shaft 82 are eccentric, and the swing arm 81 is rotatably sleeved on the flange part 91.
Referring to fig. 3, the rotating mechanism includes a first motor 11, a driving pulley 12, a driven pulley 13, and a timing belt 14. The driving wheel 12 is in key connection with an output shaft of the first motor 11, and the driven wheel 13 is in key connection with one end of the supporting shaft 82. The timing belt 14 connects the driving pulley 12 and the driven pulley 13. The first motor 11 is fixedly arranged at the upper end of the cavity.
The first motor 11 drives the driving wheel 12 to rotate, drives the driven wheel 13 to rotate, and thus drives the supporting shaft 82 to rotate, and the swing arm 81 is adjusted up and down along with the rotation of the supporting shaft 82, so that the position of the lowest point of the sliding block 6 is slightly changed.
the adjustment amount of the bottom dead center of the slide block 6 is 0.01-0.5 mm.
The motor assembly 7 comprises a second motor 71 arranged at the upper end of the bed body 1, a second driving wheel 72 arranged on an output shaft of the second motor 71, a clutch 74 connected with one end of the crankshaft 3 in a key mode, and a transmission belt 73 connecting the clutch and the second driving wheel.
Example two
Referring to fig. 5 and fig. 6, the present embodiment is based on the first embodiment, and the difference between the present embodiment and the first embodiment is that two ends of the supporting shaft 82 of the lever mechanism 8 are connected to two side walls of the cavity, and the swing arm 81 is rotatably connected to the supporting shaft 82.
The adjusting mechanism 9 adjusts the distance from the axle center of the first connecting rod 4 connected with the crankshaft 3 to the axle center of the first connecting rod 4 connected with the swing arm 81.
One end of a swing arm 81 of the lever mechanism 8 extends to form two parallel first side plates 83, and a pivot shaft 84 is pivoted with the swing arm 81 and the lower end of the first connecting rod 4; two ends of the pivot shaft 84 are respectively connected with the first side plate 83 in a rotating manner; the pivot shaft 84 is provided with a second flange part 92, the second flange part 92 and the pivot shaft 84 are eccentric, and the lower end of the first connecting rod 4 is rotatably sleeved on the second flange part 92; the adjusting mechanism 9 is a telescopic rotary driving mechanism for driving the pivot shaft 84 to rotate.
Referring to fig. 7 and 8, the telescopic rotary driving mechanism includes a worm wheel 21, a worm 22, a mounting seat 23, a telescopic transmission 24, an input shaft 25 and a second motor assembly; the worm wheel 21 is disposed at one end of the pivot shaft 84, and specifically, the worm wheel 21 is keyed with the pivot shaft 84. The mounting seat 23 is fixedly arranged on the outer side of the first side plate 83, the worm 22 is rotatably connected to the mounting seat 23, and the worm wheel 21 is meshed with the worm 22; one end of the telescopic transmission member 24 is connected with the worm 22, the other end of the telescopic transmission member is connected with the input shaft 25, and the input shaft 25 is rotatably connected with one side wall of the lathe bed 1. In particular, the input shaft 25 is bearing-connected to a side wall of the cavity. The input shaft 25 is connected to the second motor assembly. The second motor assembly drives the telescopic transmission member 24 to rotate, so that the worm 22 drives the worm wheel 21 to rotate, and the pivot shaft 84 rotates. A gland is arranged on one side of the worm wheel 21 and is in limit connection with a connecting key of the worm wheel 21 and the pivot shaft 84.
Specifically, the middle of the mounting seat 23 is provided with a space avoiding portion, two ends of the space avoiding portion extend upwards to form fixing seats, and the mounting seat 23 is fixedly connected to the outer side of the first side plate 83 through the fixing seats. The two ends of the mounting seat 23 are provided with mounting holes, bearings are arranged in the mounting holes, and the two ends of the worm 21 are tightly matched and connected with the inner rings of the bearings. The worm 22 is engaged with the worm wheel 21. One end of the telescopic transmission 24 is connected with the worm 22, and the other end is connected with the input shaft 25. Specifically, the telescopic transmission member 24 is a telescopic universal joint.
Referring to fig. 9, the second motor assembly includes a driven wheel 13, a driving wheel 12, a first motor 11, an input shaft 25 and a synchronous belt 14; the driven wheel 13 is connected with the input shaft 25 in a key mode; the driving wheel 12 is arranged on an output shaft of the first motor 11, and the synchronous belt 14 is connected with the driving wheel 12 and the driven wheel 13; the first motor 11 is fixedly arranged on one side wall of the lathe bed 1.
The first motor 11 drives the driving wheel 12 to rotate, so as to drive the driven wheel 13 to rotate, the driven wheel 13 drives the input shaft 25 to rotate, the input shaft 25 drives the worm 22 to rotate, the worm 22 drives the turbine 21 to rotate, and finally, the pivot shaft 84 is driven to rotate; the distance from the axis of the first link 4 connected to the crankshaft 3 to the axis of the first link 4 connected to the swing arm 81 is slightly changed, and the position of the lowest point of the slider 6 is slightly changed.
Specifically, the adjustment amount of the bottom dead center of the slide block 6 is 0.01-0.5 mm.
EXAMPLE III
Referring to fig. 6 and 10, the present embodiment is based on the first embodiment, and the difference between the present embodiment and the first embodiment is that two ends of the supporting shaft 82 of the lever mechanism 8 are connected to two side walls of the cavity, and the swing arm 81 is rotatably connected to the supporting shaft 82.
The adjusting mechanism 9 adjusts the distance from the bottom of the second connecting rod 5 to the connecting axle center of the second connecting rod 5 and the swing arm 81.
Two second side plates 85 parallel to each other extend from the other end of the swing arm 81 of the lever mechanism 8, and a pivot shaft 84 is pivotally connected to the swing arm 81 and the upper end of the second connecting rod 5; two ends of the pivot shaft 84 are respectively rotatably connected with the second side plate 85; specifically, both ends of the pivot shaft 84 are bearing-connected to the second side plate 85. The pivot shaft 84 is provided with a second flange part 92, the second flange part 92 and the pivot shaft 84 are eccentric, and the upper end of the second connecting rod 5 is rotatably sleeved on the second flange part 92; specifically, the upper end of the second link 5 is bearing-connected to the second flange portion 92. The adjusting mechanism 9 is a telescopic rotary driving mechanism for driving the pivot shaft 84 to rotate.
Referring to fig. 11 and 12, the telescopic rotary driving mechanism includes a worm wheel 21, a worm 22, a mounting seat 23, a telescopic transmission 24, an input shaft 25 and a second motor assembly; the worm wheel 21 is disposed at one end of the pivot shaft 84, and specifically, the worm wheel 21 is keyed with the pivot shaft 84. The mounting seat 23 is fixedly arranged on the outer side of the second side plate 85, the worm 22 is rotatably connected to the mounting seat 23, and the worm wheel 21 is meshed with the worm 22; one end of the telescopic transmission member 24 is connected with the worm 22, the other end of the telescopic transmission member is connected with the input shaft 25, and the input shaft 25 is rotatably connected with one side wall of the lathe bed 1. In particular, the input shaft 25 is bearing-connected to a side wall of the cavity. The input shaft 25 is connected to the second motor assembly. The second motor assembly drives the telescopic transmission member 24 to rotate, so that the worm drives the worm 22 to rotate, and the pivot shaft 84 rotates. A gland is arranged on one side of the worm wheel 21 and is in limit connection with a connecting key of the worm wheel 21 and the pivot shaft 84.
Specifically, the middle of the mounting seat 23 is provided with a space avoiding portion, two ends of the space avoiding portion extend upwards to form fixing seats, and the mounting seat 23 is fixedly connected to the outer side of the first side plate 83 through the fixing seats. The two ends of the mounting seat 23 are provided with mounting holes, bearings are arranged in the mounting holes, and the two ends of the worm 21 are tightly matched and connected with the inner rings of the bearings. The worm 22 is engaged with the worm wheel 21. One end of the telescopic transmission 24 is connected with the worm 22, and the other end is connected with the input shaft 25. Specifically, the telescopic transmission member 24 is a telescopic universal joint.
Referring to fig. 13, the second motor assembly includes a driven wheel 13, a driving wheel 12, a first motor 11, an input shaft 25 and a synchronous belt 14; the driven wheel 13 is connected with the input shaft 25 in a key mode; the driving wheel 12 is arranged on an output shaft of the first motor 11, and the synchronous belt 14 is connected with the driving wheel 12 and the driven wheel 13; the first motor 11 is fixedly arranged on one side wall of the lathe bed 1.
The first motor 11 drives the driving wheel 12 to rotate, so as to drive the driven wheel 13 to rotate, the driven wheel 13 drives the input shaft 25 to rotate, the input shaft 25 drives the worm 22 to rotate, the worm 22 drives the turbine 21 to rotate, and finally, the pivot shaft 84 is driven to rotate; the distance between the bottom of the second link 5 and the connecting axle center of the second link 5 and the swing arm 81 is slightly changed, and the position of the lowest point of the slide block 6 is slightly changed.
Specifically, the adjustment amount of the bottom dead center of the slide block 6 is 0.01-0.5 mm.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.
Claims (12)
1. A lever type punch comprises a punch body (1), a workbench (2), a crankshaft (3), a first connecting rod (4), a lever mechanism (8), a second connecting rod (5), a sliding block (6) and a motor assembly (7) for driving the crankshaft to rotate; the crankshaft (3) is rotatably connected to the upper end of the lathe bed (1), and the first connecting rod (4) is rotatably sleeved on the crankshaft (3); one end of a swing arm (81) of the lever mechanism (8) is rotatably connected with the first connecting rod (4), and the other end of the swing arm is rotatably connected with the upper end of the second connecting rod (5); the sliding block (6) is fixedly connected to the bottom of the second connecting rod (5); the motor component (7) drives the crankshaft (3) to rotate, and pushes a swing arm (81) of the lever mechanism (8) to swing through the first connecting rod (4), so that the second connecting rod (5) moves up and down along a guide hole of the lathe bed (1); the mechanism is characterized in that an adjusting mechanism (9) adjusts the height of a fulcrum of a lever mechanism (8), or adjusts the distance from the axle center of the first connecting rod (4) connected with the crankshaft (3) to the axle center of the first connecting rod (4) connected with the swing arm (81), or adjusts the distance from the bottom of the second connecting rod (5) to the axle center of the second connecting rod (5) connected with the swing arm (81).
2. A lever type press as claimed in claim 1, wherein the supporting shaft (82) of the lever mechanism (8) is rotatably connected to the machine bed (1); the supporting shaft is provided with a flange part, the flange part (91) and the supporting shaft (82) are in an eccentric shape, and the swing arm (81) is rotatably sleeved on the flange part (91); the adjusting mechanism (9) is a rotating mechanism for driving the supporting shaft to rotate.
3. A lever type punch press as claimed in claim 2, wherein the rotating mechanism comprises a first motor (11), a driving pulley (12) provided on an output shaft of the first motor (11), a driven pulley (13) keyed to one end of the supporting shaft (82), and a timing belt (14) connecting the driving pulley (12) and the driven pulley (13); the first motor (11) is fixedly arranged at the upper end of the lathe bed (1).
4. A lever type punch press as claimed in claim 1, wherein one end of the swing arm (81) of the lever mechanism (8) extends with two parallel first side plates (83), and two ends of the pivot shaft (84) are respectively connected with the first side plates (83) in a rotating manner; the pivoting shaft (84) is provided with a second flange part (92), the second flange part (92) and the pivoting shaft (84) are in an eccentric shape, and the lower end of the first connecting rod (4) is rotatably sleeved on the second flange part (92); the adjusting mechanism (9) is a telescopic rotary driving mechanism for driving the pivoting shaft (84) to rotate.
5. A lever punch press as claimed in claim 4, characterised in that the telescopic rotary drive comprises a worm wheel (21), a worm (22), a mounting (23), a telescopic transmission (24), an input shaft (25) and a first motor (11); the worm wheel (21) is arranged at one end of the pivoting shaft (84), the mounting seat (23) is fixedly arranged on the outer side of the first side plate (83), the worm (22) is rotatably connected to the mounting seat (23), and the worm wheel (21) is meshed with the worm (22); one end of the telescopic transmission part (24) is connected with the worm (22), the other end of the telescopic transmission part is connected with the input shaft (25), and the input shaft is rotatably connected with one side wall of the lathe bed (1); the input shaft (25) is connected with the second motor assembly.
6. A lever punch press as claimed in claim 5, characterised in that the telescopic drive member (24) is a telescopic universal joint.
7. A lever type punch press as claimed in claim 1, wherein the other end of the swing arm (81) of the lever mechanism (8) is extended with two second side plates (85) parallel to each other, and a pivot shaft (84) pivotally connects the swing arm (81) and the upper end of the second connecting rod (5); two ends of the pivot shaft (84) are respectively connected with the second side plate (85) in a rotating way; the pivoting shaft (84) is provided with a second flange part (92), the second flange part (92) and the pivoting shaft (84) are in an eccentric shape, and the upper end of the second connecting rod (5) is rotatably sleeved on the second flange part (92); the adjusting mechanism (9) is a telescopic rotary driving mechanism for driving the pivoting shaft (84) to rotate.
8. A lever punch press as claimed in claim 7, characterised in that the telescopic rotary drive comprises a worm wheel (21), a worm (22), a mounting (23), a telescopic transmission (24), an input shaft (25) and a first motor (11); the worm wheel (21) is arranged at one end of the pivoting shaft (84), the mounting seat (23) is fixedly arranged on the outer side of the second side plate (85), the worm (22) is rotatably connected to the mounting seat (23), and the worm wheel (21) is meshed with the worm (22); one end of the telescopic transmission part (24) is connected with the worm (22), the other end of the telescopic transmission part is connected with the input shaft (25), and the input shaft is rotatably connected with one side wall of the lathe bed (1); the input shaft (25) is connected with the second motor assembly.
9. A lever punch press as claimed in claim 8, characterised in that the telescopic drive member (24) is a telescopic universal joint.
10. A lever type press as claimed in any one of claims 1 to 9, wherein the adjustment of the bottom dead centre of the slide (6) is in the range of 0.01 to 0.5 mm.
11. A lever type press as claimed in claim 1, wherein said motor assembly (7) comprises a second motor (71) provided at an upper end of said bed (1), a second drive pulley (72) provided on an output shaft of said second motor (71), a clutch (74) keyed to one end of said crankshaft (3) and a transmission belt (73) connecting said clutch to said second drive pulley.
12. A lever type punch press as claimed in claim 3, wherein the upper end of the bed (1) is provided with a cavity, and two ends of the crankshaft (3) are rotatably connected with two side walls of the cavity; two ends of the supporting shaft (82) are rotatably connected with two side walls of the cavity; the lower wall of the cavity is provided with a guide hole, and the second connecting rod (5) is arranged in the guide hole in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822091370.7U CN209756145U (en) | 2018-12-12 | 2018-12-12 | Lever type punch press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822091370.7U CN209756145U (en) | 2018-12-12 | 2018-12-12 | Lever type punch press |
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| CN209756145U true CN209756145U (en) | 2019-12-10 |
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| CN201822091370.7U Active CN209756145U (en) | 2018-12-12 | 2018-12-12 | Lever type punch press |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454912A (en) * | 2018-12-12 | 2019-03-12 | 明勖（东莞）精密机械有限公司 | A kind of lever punch |
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2018
- 2018-12-12 CN CN201822091370.7U patent/CN209756145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454912A (en) * | 2018-12-12 | 2019-03-12 | 明勖（东莞）精密机械有限公司 | A kind of lever punch |
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