CN216914928U - Driving device of pull-down type punch press - Google Patents
Driving device of pull-down type punch press Download PDFInfo
- Publication number
- CN216914928U CN216914928U CN202123202699.4U CN202123202699U CN216914928U CN 216914928 U CN216914928 U CN 216914928U CN 202123202699 U CN202123202699 U CN 202123202699U CN 216914928 U CN216914928 U CN 216914928U
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- pull
- driving
- punch press
- wheel
- connecting rod
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- 230000000712 assembly Effects 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims description 6
- 230000001360 synchronised Effects 0.000 claims description 5
- 238000004080 punching Methods 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003139 buffering Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a driving device of a pull-down punch press, which comprises a crankshaft arranged on a punch press body, a first driving piece for driving the crankshaft to rotate, at least one group of pull rod assemblies and an adjustable crank connecting rod assembly, wherein an eccentric part is arranged on the crankshaft, and the pull rod assemblies are connected with the eccentric part of the crankshaft through the adjustable crank connecting rod assembly. According to the driving device of the pull-down punch, the adjustable crank connecting rod assembly is arranged on the pull rod assembly to adjust the distance between the pull rod assembly and the crankshaft, so that the die height on the punch is adjusted to facilitate the installation of dies with different heights, the automatic die adjustment is realized by matching with the reduction motor and chain transmission, the motor power can be reduced by assisting the pull rod and the spring, the punching is more stable, and the comprehensive gap and the balance inertia force can be reduced by the spring, so that the punching precision is greatly improved.
Description
Technical Field
The utility model relates to the technical field of punch equipment, in particular to a driving device of a pull-down type punch.
Background
In the field of machining, the punch press is widely applied to punch forming metal products, such as door and window profiles, automobile parts, household appliance accessories and the like, when the height of a die is changed, the distance between a needed sliding block and a platform disc of the existing pull-down punch press is different, the existing pull-down punch press can not be adjusted in a universal mode, and only one die height is set. The method has extremely low adaptability and reduces the production efficiency, and in addition, most of the existing pull-down punching machines adopt a single crankshaft assembly for driving, and the inertia force is large, so that the processing precision is low, the transmission stability and the transmission efficiency of the crankshaft assembly are influenced, the punching precision of the punching machine is reduced, and even the normal use of the punching machine is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a driving device of a pull-down type punch press, which aims to solve the technical problems in the background technology.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a driving device of a pull-down punch comprises a crankshaft arranged on a body of the punch, a first driving piece driving the crankshaft to rotate, at least one group of pull rod assemblies and an adjustable crank connecting rod assembly, the pull rod assembly is fixedly connected with a movable die on the punch press, an eccentric part is arranged on the crankshaft, the pull rod assembly is connected with the eccentric part of the crankshaft through an adjustable crank connecting rod assembly, the adjustable crank connecting rod component comprises a box body, a worm and gear module, a crank connecting rod and an adjusting rod, the box body is fixed on the pull rod assembly, the bottom end of the adjusting rod is fixedly connected with the crank connecting rod, the top end of the adjusting rod is arranged in the box body, the worm and gear module comprises a worm wheel, a worm and a second driving piece for driving the worm to rotate, the worm wheel is installed on the top of adjusting rod and with adjusting rod threaded connection, the worm passes box one side and worm wheel threaded connection.
The pull rod assembly comprises a pull plate and pull rods arranged at the front end and the rear end of the pull plate, the pull plate is arranged above the eccentric part of the crankshaft, and the pull rods are vertically fixed on the pull plate.
The buffer mechanism comprises a supporting plate, guide rods fixed on the front side and the rear side of the supporting plate and compression springs arranged on the guide rods, the top ends of the guide rods are fixedly connected with the supporting plate, the bottom ends of the guide rods penetrate through the pull plate, and the compression springs are arranged below the pull plate.
The adjustable crank connecting rod assembly comprises a crank shaft, a first driving piece and a second driving piece, wherein the crank shaft is provided with two groups of adjustable crank connecting rod assemblies, the two groups of adjustable crank connecting rod assemblies are symmetrically arranged on the left side and the right side of the crank shaft, the two groups of adjustable crank connecting rod assemblies are in synchronous motion through a linkage mechanism, and the first driving piece is in driving connection with the linkage mechanism and drives two groups of worms on the adjustable crank connecting rod assemblies to rotate simultaneously.
The linkage mechanism comprises a driving wheel, a tensioning wheel, a first driven wheel, a second driven wheel and a chain, the driving wheel is in driving connection with the second driving piece, the second driving piece is fixed on the bed of the punch press, the tensioning wheel is arranged between the first driven wheel and the second driven wheel, and the first driven wheel, the second driven wheel, the tensioning wheel and the driving wheel are in synchronous rotation of the worm through chain transmission.
Compared with the prior art, the driving device of the pull-down punch press provided by the utility model has the advantages that the adjustable crank connecting rod assembly is arranged on the pull rod assembly to adjust the distance between the pull rod assembly and the crankshaft, so that the die height on the punch press is adjusted to facilitate the installation of dies with different heights, the automatic die adjustment is realized by matching with the speed reduction motor and chain transmission, the investment of adjustment working hours is effectively reduced, the adjustment precision is more accurate, the motor power can be reduced by assisting the pull rod and the spring, the punching is more stable, and the comprehensive gap and the balance inertia force can be reduced by the spring, so that the punching precision is greatly improved.
Drawings
FIG. 1: the utility model is a schematic longitudinal half-section structure;
FIG. 2: the structure schematic diagram of the adjustable crank connecting rod component;
FIG. 3: the structure of the pull rod component on the crankshaft in the embodiment is schematically shown;
FIG. 4: the linkage mechanism is arranged on the lathe bed.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Specific example 1: referring to fig. 1 to 3, in an embodiment of the present invention, a driving apparatus for a pull-down punch includes a crankshaft 1 mounted on a bed of the punch, a first driving member 2 for driving the crankshaft 1 to rotate, at least one set of drawbar assembly 3 and an adjustable crank link 405 assembly 4, in this embodiment, the first driving member 2 is a conventional motor, the drawbar assembly 3 is provided with two sets, two eccentric portions are disposed on the crankshaft 1, the drawbar assemblies 3 are symmetrically mounted on left and right sides of the crankshaft 1, the drawbar assembly 3 is fixedly connected to a movable mold 5 on the punch, the drawbar assembly 3 is fixedly connected to the eccentric portion of the crankshaft 1 through the adjustable crank link 405 assembly 4, the adjustable crank link 405 assembly 4 includes a box 401, a worm and gear module, a crank link 405 and an adjusting rod 402, the box 401 is fixed on the drawbar assembly 3, and a bottom end of the adjusting rod 402 is fixedly connected to the crank link 405, the top of adjusting lever 402 is in box 401, the worm gear module includes worm wheel 403, worm 404 and drive worm 404 pivoted second driving piece 406, worm wheel 403 installs on the top of adjusting lever 402 and with adjusting lever 402 threaded connection, be equipped with the external screw thread portion on the adjusting lever 402 and carry out threaded connection with worm wheel 403, worm 404 passes box 401 one side and worm wheel 403 threaded connection, when second driving piece 406 drive worm 404 rotates, because adjusting lever 402 is fixed, worm 404 drives worm wheel 403 and carries out rotary motion around the external screw thread of bracing piece, thereby drive adjusting lever 402 and carry out the up-and-down motion, and then drive pull rod assembly 3 displacement from top to bottom.
Pull rod component 3 includes arm-tie 301 and installs both ends pull rod 302 around arm-tie 301, arm-tie 301 is in the eccentric portion top of bent axle 1, pull rod 302 vertical fixation is on arm-tie 301, the top of pull rod 302 and the 5 fixed connection of movable mould on the punch press, the bottom and the arm-tie 301 fixed connection of pull rod 302, the eccentric portion of bent axle 1 is rotatory around bent axle 1's center, thereby drive arm-tie 301 up-and-down motion through adjustable crank connecting rod 405, arm-tie 301 rethread pull rod 302 stimulates 5 up-and-down motions of movable mould, after down motion completion stamping work, up-motion resets, accomplish a punching press process.
In the embodiment, the pull rod assembly 3 further comprises a buffer mechanism 303, the buffer mechanism 303 comprises a support plate 303-1, guide rods 303-2 fixed to the front side and the rear side of the support plate 303-1 and compression springs 303-3 installed on the guide rods 303-2, the top ends of the guide rods 303-2 are fixedly connected with the support plate 303-1, the bottom ends of the guide rods 303-2 penetrate through the pull plate 301, the compression springs 303-3 are arranged below the pull plate 301, and by arranging the buffer mechanism 303, a buffering force is provided for the pull plate 301 when the pull plate 301 moves downwards, so that the defects that a mold is damaged due to excessive force impact during mold closing between the fixed mold and the movable mold 5 are avoided.
Referring to fig. 4, two sets of adjustable crank connecting rod 405 assemblies 4 are provided, the two sets of adjustable crank connecting rod 405 assemblies 4 perform synchronous motion through the linkage mechanism 6, and the first driving member 2 is in driving connection with the linkage mechanism 6 and drives the worms 404 on the two sets of adjustable crank connecting rod 405 assemblies 4 to rotate. The linkage mechanism 6 comprises a driving wheel 601, a tension wheel 604, a first driven wheel 602, a second driven wheel 603 and a chain, the driving wheel 601 is in driving connection with the second driving wheel 406, the second driving wheel 406 is fixed on the bed of the punch press, the tension wheel 604 is arranged between the first driven wheel 602 and the second driven wheel 603, the first driven wheel 602, the second driven wheel 603 and the driving wheel 601 synchronously rotate through the chain transmission of the worm 404, in the implementation, the second driving wheel 406 is a speed reduction motor in the prior art, the whole operation is stable and the noise is low, the speed reduction motor is used for driving the driving wheel 601 to rotate, and the transmission through the chain is realized, so that the positions of the two pull rod assemblies 3 are synchronously adjusted, and the stability of the production operation is ensured.
Compared with the prior art, the driving device of the pull-down punch press provided by the utility model has the advantages that the adjustable crank connecting rod assembly is arranged on the pull rod assembly to adjust the distance between the pull rod assembly and the crankshaft, so that the die height on the punch press is adjusted to facilitate the installation of dies with different heights, the automatic die adjustment is realized by matching with the speed reduction motor and chain transmission, the investment of adjustment working hours is effectively reduced, the adjustment precision is more accurate, the motor power can be reduced by assisting the pull rod and the spring, the punching is more stable, and the comprehensive gap and the balance inertia force can be reduced by the spring, so that the punching precision is greatly improved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A drive device of a pull-down punch press is characterized in that: including bent axle, the first driving piece of driving crankshaft pivoted, a set of at least draw bar assembly and the adjustable crank link assembly of installing on the lathe bed of punch press, the movable mould fixed connection on draw bar assembly and the punch press, be equipped with the eccentric portion on the bent axle, draw bar assembly passes through the eccentric portion erection joint of adjustable crank link assembly and bent axle, adjustable crank link assembly includes box, worm gear module, crank connecting rod and adjusting lever, the box is fixed on draw bar assembly, the bottom and the crank connecting rod fixed connection of adjusting lever, the top of adjusting lever is in the box, the worm gear module includes worm wheel, worm and drive worm pivoted second driving piece, the worm wheel install on the top of adjusting lever and with adjusting lever threaded connection, the worm passes box one side and worm wheel threaded connection.
2. The driving apparatus of a pull-down type punch press according to claim 1, wherein: the pull rod assembly comprises a pull plate and pull rods arranged at the front end and the rear end of the pull plate, the pull plate is arranged above the eccentric part of the crankshaft, and the pull rods are vertically fixed on the pull plate.
3. The driving apparatus of a pull-down type punch press according to claim 2, wherein: the buffer mechanism comprises a supporting plate, guide rods fixed on the front side and the rear side of the supporting plate and compression springs arranged on the guide rods, the top ends of the guide rods are fixedly connected with the supporting plate, the bottom ends of the guide rods penetrate through the pull plate, and the compression springs are arranged below the pull plate.
4. The driving apparatus of a pull-down type punch press according to claim 3, wherein: the adjustable crank connecting rod assembly comprises a crank shaft, a first driving piece and a second driving piece, wherein the crank shaft is provided with two groups of adjustable crank connecting rod assemblies, the two groups of adjustable crank connecting rod assemblies are symmetrically arranged on the left side and the right side of the crank shaft, the two groups of adjustable crank connecting rod assemblies are in synchronous motion through a linkage mechanism, and the first driving piece is in driving connection with the linkage mechanism and drives two groups of worms on the adjustable crank connecting rod assemblies to rotate simultaneously.
5. The driving apparatus of a pull-down type punch press according to claim 4, wherein: the linkage mechanism comprises a driving wheel, a tensioning wheel, a first driven wheel, a second driven wheel and a chain, the driving wheel is in driving connection with the second driving piece, the second driving piece is fixed on the bed of the punch press, the tensioning wheel is arranged between the first driven wheel and the second driven wheel, and the first driven wheel, the second driven wheel, the tensioning wheel and the driving wheel are in synchronous rotation through chain transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123202699.4U CN216914928U (en) | 2021-12-20 | 2021-12-20 | Driving device of pull-down type punch press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123202699.4U CN216914928U (en) | 2021-12-20 | 2021-12-20 | Driving device of pull-down type punch press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216914928U true CN216914928U (en) | 2022-07-08 |
Family
ID=82252960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123202699.4U Active CN216914928U (en) | 2021-12-20 | 2021-12-20 | Driving device of pull-down type punch press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216914928U (en) |
-
2021
- 2021-12-20 CN CN202123202699.4U patent/CN216914928U/en active Active
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