CN219994174U - Pitch-changing module mechanism with braking function - Google Patents
Pitch-changing module mechanism with braking function Download PDFInfo
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- CN219994174U CN219994174U CN202320927543.2U CN202320927543U CN219994174U CN 219994174 U CN219994174 U CN 219994174U CN 202320927543 U CN202320927543 U CN 202320927543U CN 219994174 U CN219994174 U CN 219994174U
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- sliding seat
- guide
- driving shaft
- rod
- module mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims 1
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- 238000010586 diagram Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a variable-pitch module mechanism with a braking function, which comprises a machine base, a driving shaft, a guide rod, a first sliding seat and a second sliding seat, wherein the driving shaft, the guide rod, the first sliding seat and the second sliding seat are arranged on the machine base, the driving shaft can drive the first sliding seat and the second sliding seat to move, the first sliding seat is movably connected with the guide rod, a pressing rod and an air cylinder are arranged on the first sliding seat and the second sliding seat, the air cylinder can drive the pressing rod to be abutted with the guide rod so as to limit the movement of the first sliding seat and the second sliding seat relative to the machine base, two ends of the driving shaft are rotatably connected with the machine base, spiral guide structures are arranged between the driving shaft and the first sliding seat and the second sliding seat, the driving shaft drives the first sliding seat and the second sliding seat to move through the spiral guide structures, the spiral guide grooves and guide pins matched with the spiral guide grooves are formed on the circumferential outer side walls of the driving shaft, and the guide pins are arranged on the first sliding seat and the second sliding seat. The utility model can control the slide seat to brake and stop moving, so that the slide seat has good stability and high position precision.
Description
Technical Field
The utility model relates to the technical field of automatic equipment, in particular to a variable-pitch module mechanism with a braking function.
Background
The variable-pitch module mechanism is a linear driving mechanism widely applied to the field of automation equipment and mainly comprises a machine base, a sliding seat and a driving mechanism, wherein the driving mechanism drives the sliding seat to slide relative to the machine base, and a working unit can be arranged on the sliding seat.
However, in the conventional variable-pitch module mechanism, the sliding seat cannot stop in time due to inertia caused by movement of the sliding seat, so that the stability is poor and the position deviation is large.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a variable-pitch module mechanism with a braking function, which can control a sliding seat to brake and stop moving, so that the sliding seat has good stability and high position precision.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the variable-pitch module mechanism with the braking function comprises a machine base, a driving piece and a first sliding seat, wherein the driving piece and the first sliding seat are arranged on the machine base, the driving piece can drive the first sliding seat to slide relative to the machine base, a guide rod is arranged on the machine base, the first sliding seat is movably connected with the guide rod, a pressing rod and a driving unit are arranged on the first sliding seat, and the driving unit can drive the pressing rod to be in pressing connection with the guide rod so as to limit the first sliding seat to move relative to the machine base; through setting up the guide bar on the frame, set up on first slide and support depression bar and drive unit, first slide and guide bar swing joint, drive unit drive support the depression bar and support the brake of control first slide and stop relative frame motion with the guide bar butt for first slide stability is good, and the position accuracy is high.
As a preferable scheme, the driving unit is a cylinder, and one end of the pressing rod, which is far away from the guide rod, is connected with a piston head in the cylinder.
In one preferable mode, a return spring which enables the piston head to always move towards the direction far away from the guide rod is arranged in the piston cavity of the cylinder, one end of the return spring is abutted with the inner side wall of the piston cavity, and the other end of the return spring is abutted with the piston head.
As a preferable scheme, one end of the pressing rod, which is close to the guide rod, is detachably connected with a pressing head.
As a preferred scheme, be equipped with the groove of stepping down on the first slide and supply to support the depression bar and stretch into the opening of stepping down of the groove of stepping down, the groove both ends inboard of stepping down all is equipped with the uide bushing, the guide bar activity wears to locate in the uide bushing, support the depression bar and be located between two uide bushings.
As a preferable scheme, the driving piece is a driving shaft, two ends of the driving shaft are both rotationally connected with the machine base, a spiral guide structure is arranged between the driving shaft and the first sliding seat, and the driving shaft drives the first sliding seat to move through the spiral guide structure.
As a preferable mode, the spiral guide structure is a spiral guide groove formed on the circumferential outer side wall of the driving shaft and a guide pin fitted with the spiral guide groove, the guide pin is mounted on the first slider, and one end of the guide pin extends into the spiral guide groove.
As a preferable scheme, one end of the guide pin is rotatably connected with a roller, and the outer side wall of the roller is abutted with the inner side wall of the spiral guide groove.
As a preferable scheme, a containing cavity is formed in the machine base, the driving shaft is arranged in the containing cavity, and a position avoiding opening for the guide pin to extend into the containing cavity is formed in the outer side wall of the upper end of the machine base.
As a preferable scheme, the machine base is also provided with a second sliding seat, the second sliding seat is in sliding connection with the machine base, the driving piece can drive the first sliding seat and the second sliding seat to move in the same direction or in opposite directions, and the first sliding seat and the second sliding seat are respectively provided with the pressing rod and the driving unit.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, the guide rod is arranged on the machine base, the pressing rod and the driving unit are arranged on the first sliding seat, the first sliding seat is movably connected with the guide rod, and the driving unit drives the pressing rod to be abutted with the guide rod so as to control the first sliding seat to brake and stop moving relative to the machine base, so that the first sliding seat has good stability and high position precision.
For a clearer description of the structural features, technical means, and specific objects and functions achieved by the present utility model, the present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments:
drawings
FIG. 1 is a schematic diagram of an assembled structure of an embodiment of the present utility model;
FIG. 2 is an exploded view of an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a first carriage structure according to an embodiment of the present utility model.
The attached drawings are used for identifying and describing:
10-base 11-slide rail 12-first mounting plate
121-first bump 13-second mounting plate 131-second bump
14-guide rod 15-accommodating cavity 16-avoidance opening
20-drive member 21-first helical guide groove 22-second helical guide groove
30-first slide seat 31-slide block 32-abdication groove
321-abdication opening 33-guide sleeve 34-pressing rod
341-pressure-exerting head 35-drive unit 351-piston head
352-piston chamber 353-return spring 354-vent
36-air pipe joint 37-mounting seat 38-guide pin
39-roller 40-second slide
Detailed Description
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the positions or elements referred to must have specific directions, be configured and operated in specific directions, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
As shown in fig. 1-4, the utility model discloses a variable-pitch module mechanism with a braking function, which comprises a machine base 10, a driving piece 20 and a first sliding seat 30, wherein the driving piece 20 and the first sliding seat 30 are arranged on the machine base 10, the driving piece 20 can drive the first sliding seat 30 to slide relative to the machine base 10, a sliding rail 11 is arranged on the machine base 10, a sliding block 31 is arranged on the first sliding seat 30, the sliding block 31 is matched with the sliding rail 11 so as to enable the first sliding seat 30 to be in sliding connection with the machine base 10, the extending direction of the sliding rail 11 is parallel to the axis direction of a guide rod 14, the guide rod 14 is arranged on the machine base 10, the first sliding seat 30 is movably connected with the guide rod 14, a pressing rod 34 and a driving unit 35 are arranged on the first sliding seat 30, and the driving unit 35 can drive the pressing rod 34 to be abutted against the guide rod 14 so as to limit the movement of the first sliding seat 30 relative to the machine base 10.
The two ends of the stand 10 are respectively provided with a first mounting plate 12 and a second mounting plate 13, one side of the first mounting plate 12 is provided with a first bump 121, one side of the second mounting plate 13 is provided with a second bump 131, and two ends of the guide rod 14 are respectively connected with the first bump 121 and the second bump 131.
The first sliding seat 30 is provided with a yielding groove 32 and a yielding opening 321 for the pressing rod 34 to extend into the yielding groove 32, both inner sides of two ends of the yielding groove 32 along the axial direction of the guide rod 14 are respectively provided with a guide sleeve 33, the guide rod 14 is movably arranged in the guide sleeves 33 in a penetrating manner, and the pressing rod 34 is positioned between the two guide sleeves 33; through setting up uide bushing 33 at the both ends inboard of the groove of stepping down 32, support depression bar 34 and be located between two uide bushing 33, the space of the groove of stepping down 32 is rationally utilized, and the overall arrangement is compact, and is small, occupation space is few.
The driving unit 35 is a cylinder, the driving unit 35 is mounted on the lower surface of one end of the first slide 30 through a mounting seat 37, one end of the pressing rod 34 away from the guide rod 14 is connected with a piston head 351 in the cylinder, and the axial direction of the pressing rod 34 is perpendicular to the axial direction of the guide rod 14.
A return spring 353 for enabling the piston head 351 to always move towards the direction far away from the guide rod 14 is arranged in the piston cavity 352 of the cylinder, one end of the return spring 353 is in butt joint with the inner side wall of the piston cavity 352, the other end of the return spring 353 is in butt joint with the piston head 351, an air hole 354 communicated with the piston cavity 352 is formed in the outer side wall of the cylinder, an air pipe connector 36 is connected to the air hole 354, and the air pipe connector 36 can be connected with an air source device; when the air source device works, air is conveyed into the piston cavity 352, the air in the piston cavity 352 pushes the piston head 351 to move towards the guide rod 14, and the piston head 351 drives the guide rod 14 to press the outer side wall of the guide rod 14, so that the first sliding seat 30 brakes and stops sliding.
An abutting head 341 is detachably connected to one end, close to the guide rod 14, of the abutting rod 34; by providing the detachable pressing head 341, the pressing head 341 can be replaced periodically according to the time of use.
The driving member 20 is a driving shaft, two ends of the driving shaft are respectively connected with the first mounting plate 12 and the second mounting plate 13 in a rotating way, the driving shaft can be driven by a motor to rotate, a spiral guide structure is arranged between the driving shaft and the first sliding seat 30, and the driving shaft drives the first sliding seat 30 to move through the spiral guide structure; through setting up driving piece 20 as the drive shaft, set up spiral guide structure between drive shaft and the first slide 30, utilize spiral guide structure to realize that drive shaft rotation mode changes first slide 30 slip for the moment of torsion of transmission is big, simple structure, and manufacturing cost is low.
Specifically, the spiral guiding structure is a first spiral guiding groove 21 and a guiding pin 38 matched with the first spiral guiding groove 21, the first spiral guiding groove 21 is formed on the circumferential outer side wall of the driving shaft, the guiding pin 38 is mounted on the first sliding seat 30, one end of the guiding pin 38 stretches into the first spiral guiding groove 21, one end of the guiding pin 38 is rotatably connected with a roller 39, and the outer side wall of the roller 39 is abutted against the inner side wall of the first spiral guiding groove 21.
The inside of the machine base 10 is provided with a containing cavity 15, the driving shaft is arranged in the containing cavity 15, and the outer side wall of the upper end of the machine base 10 is provided with a avoidance opening 16 for the guide pin 38 to extend into the containing cavity 15.
The machine base 10 is further provided with a second sliding seat 40, the second sliding seat 40 is in sliding connection with the machine base 10, the driving piece 20 can drive the first sliding seat 30 and the second sliding seat 40 to move reversely, the first sliding seat 30 and the second sliding seat 40 are respectively provided with the pressing rod 34 and the driving unit 35, the circumferential outer side wall of the driving shaft is correspondingly provided with a second spiral guide groove 22, and the spiral directions of the first spiral guide groove 21 and the second spiral guide groove 22 are opposite.
It will be appreciated that the first carriage 30 and the second carriage 40 of the present utility model may also be configured to move in the same direction, in which case the first helical guide 21 and the second helical guide 22 are in the same helical direction.
The working principle of the utility model is as follows: the motor drives the driving shaft to rotate, the inner side wall of the spiral guide groove pushes against the bearing, the bearing drives the guide pin 38 and the first sliding seat 30 to slide linearly, when the first sliding seat 30 is required to stop moving, the cylinder drives the pushing rod 34 to extend upwards, the pushing head 341 pushes against the outer side wall of the guide rod 14 to stop the first sliding seat 30, and when the first sliding seat 30 is required to move continuously, the pushing rod 34 drives the pushing head 341 to be separated from the guide rod 14 under the action of the reset spring 353.
In summary, according to the present utility model, the guide rod 14 is disposed on the base 10, the pressing rod 34 and the driving unit 35 are disposed on the first sliding seat 30 and the second sliding seat 40, both the first sliding seat 30 and the second sliding seat 40 are movably connected with the guide rod 14, and the driving unit 35 drives the pressing rod 34 to abut against the guide rod 14 to control the first sliding seat 30 and the second sliding seat 40 to brake and stop moving relative to the base 10, so that the first sliding seat 30 and the second sliding seat 40 have good stability and high position accuracy.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, so any modifications, equivalents, improvements, etc. of the above embodiments according to the present utility model are still within the scope of the present utility model.
Claims (10)
1. The utility model provides a displacement module mechanism with brake function, includes frame and locates driving piece and first slide on the frame, driving piece can drive first slide and slide its characterized in that relative frame:
the machine seat is provided with a guide rod, the first sliding seat is movably connected with the guide rod, the first sliding seat is provided with a pressing rod and a driving unit, and the driving unit can drive the pressing rod to be in pressing connection with the guide rod so as to limit the first sliding seat to move relative to the machine seat.
2. The variable-pitch module mechanism with a braking function according to claim 1, wherein the driving unit is a cylinder, and one end of the pressing rod, which is far away from the guide rod, is connected with a piston head in the cylinder.
3. The variable-pitch module mechanism with a braking function according to claim 2, wherein a return spring which enables the piston head to always move in a direction away from the guide rod is arranged in a piston cavity of the cylinder, one end of the return spring is abutted with the inner side wall of the piston cavity, and the other end of the return spring is abutted with the piston head.
4. The variable-pitch module mechanism with a braking function according to claim 1, wherein one end of the pressing rod, which is close to the guide rod, is detachably connected with a pressing head.
5. The variable-pitch module mechanism with a braking function according to claim 1, wherein the first sliding seat is provided with a yielding groove and a yielding opening for the pressing rod to extend into the yielding groove, guide sleeves are respectively arranged on the inner sides of two ends of the yielding groove, the guide rod movably penetrates through the guide sleeves, and the pressing rod is positioned between the two guide sleeves.
6. The variable-pitch module mechanism with a braking function according to claim 1, wherein the driving piece is a driving shaft, two ends of the driving shaft are both rotationally connected with the machine base, a spiral guide structure is arranged between the driving shaft and the first sliding seat, and the driving shaft drives the first sliding seat to move through the spiral guide structure.
7. The variable-pitch module mechanism with a braking function according to claim 6, wherein the spiral guide structure is a spiral guide groove formed in a circumferential outer side wall of the drive shaft and a guide pin fitted with the spiral guide groove, the guide pin is mounted on the first slider, and one end of the guide pin protrudes into the spiral guide groove.
8. The variable-pitch module mechanism with a braking function according to claim 7, wherein one end of the guide pin is rotatably connected with a roller, and an outer side wall of the roller is abutted against an inner side wall of the spiral guide groove.
9. The variable-pitch module mechanism with braking function according to claim 7, wherein a containing cavity is formed in the base, the driving shaft is arranged in the containing cavity, and a clearance opening for the guide pin to extend into the containing cavity is formed in the outer side wall of the upper end of the base.
10. The variable-pitch module mechanism with a braking function according to any one of claims 1 to 9, wherein a second sliding seat is further arranged on the base, the second sliding seat is in sliding connection with the base, the driving piece can drive the first sliding seat and the second sliding seat to move in the same direction or in opposite directions, and the pressing rod and the driving unit are arranged on the first sliding seat and the second sliding seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320927543.2U CN219994174U (en) | 2023-04-22 | 2023-04-22 | Pitch-changing module mechanism with braking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320927543.2U CN219994174U (en) | 2023-04-22 | 2023-04-22 | Pitch-changing module mechanism with braking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219994174U true CN219994174U (en) | 2023-11-10 |
Family
ID=88621197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320927543.2U Active CN219994174U (en) | 2023-04-22 | 2023-04-22 | Pitch-changing module mechanism with braking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219994174U (en) |
-
2023
- 2023-04-22 CN CN202320927543.2U patent/CN219994174U/en active Active
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