CN219649254U - Vertical self-positioning device for shaft parts - Google Patents
Vertical self-positioning device for shaft parts Download PDFInfo
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- CN219649254U CN219649254U CN202320354369.7U CN202320354369U CN219649254U CN 219649254 U CN219649254 U CN 219649254U CN 202320354369 U CN202320354369 U CN 202320354369U CN 219649254 U CN219649254 U CN 219649254U
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- 239000000872 buffer Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a vertical self-positioning device for shaft parts, which solves the problem of supporting a workpiece in the process of matching a positioning center with a paw when the shaft parts are vertically positioned on an automatic production line. The utility model comprises a driving component and a positioning component arranged on the driving component; the positioning assembly comprises a positioning assembly fixing plate, a guide rail sliding block, a center mounting device, a rotating center, a supporting rod and a positioning cylinder; the locating cylinder is arranged on the locating component fixing plate, the guide rail sliding block is longitudinally arranged on the locating component fixing plate, the center mounting device is in sliding connection with the guide rail sliding block, and the output end of the locating cylinder is connected with the center mounting device; the rotary center and the support rod are arranged at the lower end of the center mounting device along the sliding direction of the center mounting device; the positioning component fixing plate is arranged on the driving component; the driving assembly comprises a driving center which is coaxially arranged below the rotating center.
Description
Technical Field
The utility model relates to a positioning device, in particular to a vertical self-positioning device for shaft parts.
Background
Currently, double-center positioning is the most adopted mode for nonstandard equipment on an automatic shaft part production line, whether the nonstandard equipment is used for processing, measuring or other auxiliary functions. The positioning mode is generally divided into horizontal type and vertical type, wherein the horizontal type can adopt a V-shaped supporting block to facilitate coarse positioning, so that the application scene is more, but parts with smaller sizes can be interfered at the parts needing to be processed or measured. The vertical positioning mode has no interference problem, but the problem of workpiece support after the hand claw is loosened when the manipulator places the workpiece is solved.
The Chinese patent with publication number of CN202985155U provides a double-center precise positioning clamping device, which is complex in operation and is not suitable for a large-scale clamping environment.
Disclosure of Invention
The utility model provides a vertical self-positioning device for shaft parts, which is used for solving the problem that a workpiece is not easy to support in the process of matching a positioning center with a paw when the shaft parts are vertically positioned on an automatic production line. Generally, before the center is clamped, a plane is required to be arranged for supporting the workpiece, so that the workpiece is prevented from falling off after the claws are loosened. However, after the center is clamped, the supporting plane is required to be separated from the workpiece, so that the supporting plane and the workpiece are prevented from being rubbed to influence the rotation of the workpiece.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the vertical self-positioning device for the shaft parts is characterized by comprising a driving assembly and a positioning assembly arranged on the driving assembly;
the positioning assembly comprises a positioning assembly fixing plate, a guide rail sliding block, a center mounting device, a rotating center, a supporting rod and a positioning cylinder;
the locating cylinder is arranged on the locating component fixing plate, the guide rail sliding block is longitudinally arranged on the locating component fixing plate, the center mounting device is in sliding connection with the guide rail sliding block, and the output end of the locating cylinder is connected with the center mounting device and used for controlling the center mounting device to slide up and down along the guide rail sliding block;
the rotary center and the supporting rod are arranged at the lower end of the center mounting device along the sliding direction of the center mounting device, and the rotary center is rotatably connected with the center mounting device; the rotary center is used for propping against the upper end face of the workpiece;
the positioning component fixing plate is arranged on the driving component;
the driving assembly comprises a driving center which is coaxially arranged below the rotating center; the driving center is used for propping against the lower end face of the workpiece and driving the workpiece to rotate.
Further, the locating component fixed plate comprises a transverse plate and a vertical plate, the lower end of the vertical plate is connected with the upper surface of the transverse plate, the lower surface of the transverse plate is connected with the driving component, and the guide rail sliding block and the locating cylinder are both installed on the vertical plate.
Further, the driving assembly further comprises a floating limiting plate, a supporting column, a bottom plate, a motor fixing plate, a coupler, a stepping motor, a plurality of spring supporting rods and springs which are in one-to-one correspondence with the spring supporting rods;
the springs are sleeved on the spring support rods in a one-to-one correspondence manner;
the lower end surface of the support column is connected with the upper surface of the bottom plate, the lower surface of the bottom plate is connected with the upper surface of the motor fixing plate, and the stepping motor is arranged on the lower surface of the motor fixing plate;
the middle positions of the motor fixing plate, the bottom plate, the support column and the floating limiting plate are respectively provided with a first through hole, a second through hole, a third through hole and a fourth through hole which are coaxial;
the driving center comprises a center and a center connecting rod, one end of the center connecting rod is connected with an output shaft of the stepping motor in the first through hole, and the other end of the center connecting rod sequentially penetrates through the second through hole and the third through hole, is finally positioned between the support column and the floating limiting plate and is connected with the arrow-shaped center;
a limiting device is arranged between the inner wall of the third through hole and the center connecting rod and used for limiting the center connecting rod;
the lower surface of the transverse plate is connected with the upper surface of the bottom plate.
Further, one end of the center connecting rod is connected with an output shaft of the stepping motor in the first through hole through a coupler;
the limiting device is a driving center fixing seat and is used for fixing a center connecting rod; the lower end of the driving center fixing seat is connected with the bottom plate;
the ball sleeve and the thrust needle roller bearing are also included;
the ball sleeve is sleeved on the center connecting rod and is positioned between the inner wall of the driving center fixing seat and the center connecting rod, and the thrust needle roller bearing is positioned between the center and the upper end face of the driving center fixing seat.
Further, the positioning assembly further comprises a limiting plate and two buffers;
the two buffers are arranged on the vertical plate in an up-down opposite mode and are positioned on one side of the guide rail sliding block;
one end of the limiting plate is arranged on the side face of the center mounting device, and the other end of the limiting plate is positioned between the two buffers.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the floating limiting plate and the workpiece are separated after being clamped by means of the cooperation among the supporting rod, the positioning cylinder, the spring supporting rod, the rotating center and the driving center.
In the utility model, the workpiece can be adjusted only by adjusting the running state of the positioning cylinder, and the process is convenient and reliable.
2. According to the utility model, the clamping actions between the rotating center and the driving center are synchronous through the control of the positioning cylinder, and the redundant action control is avoided, so that the extra beat is not occupied.
3. According to the utility model, under the action of the spring and the spring supporting rod, the floating limiting plate can be ensured to reset automatically, and further, the continuous operation of an automatic production line is ensured.
Drawings
FIG. 1 is a schematic view of a neutral self-positioning mechanism according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a front structure of a positioning assembly according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the structure of the back of the positioning assembly according to the embodiment of the utility model;
FIG. 4 is a schematic diagram of a driving assembly according to an embodiment of the present utility model;
FIG. 5 is a state diagram of the neutral self-positioning mechanism in the embodiment of the present utility model during loading;
FIG. 6 is a state diagram of the neutral self-positioning mechanism in an embodiment of the present utility model when clamping is initiated;
fig. 7 is a state diagram of the neutral self-positioning mechanism clamped in place in an embodiment of the present utility model.
Wherein, the reference numerals are as follows:
1. the device comprises a positioning assembly, 11, a positioning assembly fixing plate, 111, a vertical plate, 112, a transverse plate, 12, a guide rail sliding block, 13, a fixing screw, 14, a buffer, 15, a limiting plate, 16, a rotating center, 17, a supporting rod, 18, a positioning cylinder, 19, a center mounting device, 2, a driving assembly, 21, a floating limiting plate, 22, a spring, 23, a spring supporting rod, 24, a bottom plate, 25, a motor fixing plate, 26, a coupling, 27, a stepping motor, 28, a ball sleeve, 29, a thrust needle bearing, 210, a driving center, 211, a supporting column, 212, a driving center fixing seat, 3 and a workpiece.
Detailed Description
The utility model is further described with reference to the drawings and detailed description.
The utility model provides a vertical self-positioning device for shaft parts, which is shown in fig. 1, and comprises a driving assembly 2 and a positioning assembly 1 arranged on the driving assembly 2.
The positioning assembly 1, as shown in fig. 2 and 3, comprises a positioning assembly fixing plate 11, a guide rail slide block 12, a fixing screw 13, a buffer 14, a limiting plate 15, a rotating center 16, a supporting rod 17 and a positioning cylinder 18. The positioning and fixing plate 11 includes a vertical plate 111 and a horizontal plate 112, and one end of the vertical plate 111 is mounted on the upper surface of the horizontal plate 112. The two sides of the rear surface of the vertical plate 111 are provided with rib plates, the lower ends of the rib plates are connected with the upper surface of the transverse plate 112, and the side surfaces of the rib plates are connected with the rear surface of the vertical plate 111. The vertical plate 111 is also provided with a connecting hole, the guide rail sliding block 12 is arranged on the front surface of the vertical plate 111, the guide rail sliding block 12 is provided with a center mounting device 19, and the rotating center 16 is arranged on the lower end surface of the center mounting device 19. The positioning cylinder 18 is mounted on the rear surface of the vertical plate 111, the output end of the positioning cylinder 18 is connected with the center mounting device 19 through a connecting hole, at least one supporting rod 17 is further arranged on the lower end face of the center mounting device 19, and the number of the supporting rods 17 is selected according to actual conditions, and generally, the number of the supporting rods is not more than four. The two bumpers 14 are fixed to the front surface of the riser 111 by fixing screws 13, and one end of the limiting plate 15 is mounted on the side of the tip mounting device 19, and the other end is located between the two bumpers 14.
The driving assembly 2, as shown in fig. 4, includes a floating limiting plate 21, a spring 22, a spring support rod 23, a bottom plate 24, a motor fixing plate 25, a coupler 26, a stepping motor 27, a ball sleeve 28, a thrust needle bearing 29, and a driving tip 210. Four spring supporting rods 23 are uniformly distributed between the floating limiting plate 21 and the supporting columns 211, one ends of the spring supporting rods 23 are connected with the lower surface of the floating limiting plate 21, the other ends of the spring supporting rods are connected with the upper end faces of the supporting columns 211, the lower end faces of the supporting columns 211 are connected with the upper surface of the bottom plate 24, the lower surface of the bottom plate 24 is connected with the upper surface of the motor fixing plate 25, and the stepping motor 27 is mounted on the lower surface of the motor fixing plate 25. The motor fixing plate 25, the bottom plate 24, the supporting column 211 and the floating limiting plate 21 are respectively provided with a first through hole, a second through hole, a third through hole and a fourth through hole which are coaxial, the driving center 210 comprises a center and a center connecting rod, one end of the center connecting rod is connected with an output shaft of the stepping motor 27 in the first through hole through the coupling 26, the other end of the center connecting rod sequentially penetrates through the second through hole and the third through hole, and finally is positioned between the supporting column 211 and the floating limiting plate 21 and is connected with an arrow-shaped center. In the third through hole, a driving center fixing seat 212 is arranged between the center connecting rod and the inner wall of the third through hole and used for fixing the center connecting rod. The ball sleeve 28 is sleeved on the center connecting rod and is positioned between the inner wall of the driving center fixing seat 212 and the center connecting rod. The thrust needle bearing 29 is arranged between the center and the upper end face of the driving center fixing seat 212.
The lower surface of the transverse plate 112 in the positioning assembly fixing plate 11 is connected with the upper surface of the bottom plate 24, so that the fourth through hole in the floating support plate 21 corresponds to the rotating center 16, and the periphery of the upper surface of the floating support plate 21 corresponds to the support rod 17.
As shown in fig. 5-7, the vertical self-positioning device is used as follows:
(1) Feeding material
The workpiece is placed on the floating support plate 21 after being grabbed by the manipulator, an upper center hole is formed in the upper surface of the workpiece, and a lower center hole is formed in the lower surface of the workpiece.
(2) Clamping device
The positioning cylinder 18 drives the tip mounting device 19 and the rotating tip 16 in turn to move downwards along the guide rail slider 12, and when the support rod 17 contacts the upper surface of the floating support plate, the support plate 17 continues to move downwards while compressing the spring 22.
When the workpiece descends to the point that the lower tip hole contacts the driving tip 210, the workpiece stops descending. The support plate 17 continues to push the floating support plate 21 downward, at which time the workpiece is disengaged from the floating support plate 21 and a gap is maintained. Until the upper tip hole contacts the rotating tip 16, the positioning cylinder 18 stops. The workpiece is now positioned and clamped by the rotating center 16 and the driving center 210 and is not in contact with the floating support plate 21.
(3) Driving of
The stepper motor 27 transmits power to the drive tip 210 through the coupling 26. The drive center 210 is subjected to axial pressure by the thrust needle bearing 29, and radial pressure is applied by the ball sleeve 28, and high-precision rotation is maintained. The driving tip 210 drives the workpiece to rotate by friction force, and the workpiece is measured or processed.
(4) Resetting
After the workpiece has completed the measuring or processing task, the positioning cylinder 18 drives the support rod 17 and the rotating center 16 to retract. The floating support plate 21 is lifted by the elastic force of the spring 22, then contacts the workpiece, and pushes the workpiece to be separated from the driving tip 210. After continuing to rise to the limit of the spring 23 and the support bar 17, the support bar 17 is disengaged from the floating support plate 21, and finally returns to the original position. The workpiece is grasped and separated by the manipulator.
Claims (5)
1. The vertical self-positioning device for the shaft parts is characterized by comprising a driving assembly (2) and a positioning assembly (1) arranged on the driving assembly (2);
the positioning assembly (1) comprises a positioning assembly fixing plate (11), a guide rail sliding block (12), a center mounting device (19), a rotating center (16), a supporting rod (17) and a positioning cylinder (18);
the positioning cylinder (18) is arranged on the positioning component fixing plate (11), the guide rail sliding block (12) is longitudinally arranged on the positioning component fixing plate (11), the center mounting device (19) is slidably connected with the guide rail sliding block (12), and the output end of the positioning cylinder (18) is connected with the center mounting device (19) and used for controlling the center mounting device (19) to slide up and down along the guide rail sliding block (12);
the rotary center (16) and the supporting rod (17) are arranged at the lower end of the center mounting device (19) along the sliding direction of the center mounting device (19), and the rotary center (16) is rotatably connected with the center mounting device (19); the rotary center (16) is used for propping against the upper end face of the workpiece;
the positioning component fixing plate (11) is arranged on the driving component (2);
the driving assembly (2) comprises a driving center (210), and the driving center (210) is coaxially arranged below the rotating center (16); the driving center (210) is used for propping against the lower end face of the workpiece and driving the workpiece to rotate.
2. The vertical self-positioning device for shaft parts according to claim 1, wherein: the locating component fixing plate (11) comprises a transverse plate (112) and a vertical plate (111), the lower end of the vertical plate (111) is connected with the upper surface of the transverse plate (112), the lower surface of the transverse plate (112) is connected with the driving component (2), and the guide rail sliding block (12) and the locating cylinder (18) are both installed on the vertical plate (111).
3. The vertical self-positioning device for shaft parts according to claim 2, wherein: the driving assembly (2) further comprises a floating limiting plate (21), supporting columns (211), a bottom plate (24), a motor fixing plate (25), a coupler (26), a stepping motor (27), a plurality of spring supporting rods (23) and springs (22) which are in one-to-one correspondence with the spring supporting rods (23);
the springs (22) are sleeved on the spring support rods (23) in a one-to-one correspondence manner;
the lower end face of the support column (211) is connected with the upper surface of the bottom plate (24), the lower surface of the bottom plate (24) is connected with the upper surface of the motor fixing plate (25), and the stepping motor (27) is arranged on the lower surface of the motor fixing plate (25);
the middle positions of the motor fixing plate (25), the bottom plate (24), the supporting columns (211) and the floating limiting plate (21) are respectively provided with a first through hole, a second through hole, a third through hole and a fourth through hole which are coaxial;
the driving center (210) comprises a center and a center connecting rod, one end of the center connecting rod is connected with an output shaft of the stepping motor (27) in the first through hole, and the other end of the center connecting rod sequentially penetrates through the second through hole and the third through hole, is finally positioned between the supporting column (211) and the floating limiting plate (21) and is connected with the arrow-shaped center;
a limiting device is arranged between the inner wall of the third through hole and the center connecting rod and used for limiting the center connecting rod;
the lower surface of the transverse plate (112) is connected with the upper surface of the bottom plate (24).
4. A vertical self-positioning device for shaft parts according to claim 3, wherein: one end of the center connecting rod is connected with an output shaft of a stepping motor (27) in the first through hole through a coupler (26);
the limiting device is a driving center fixing seat (212) and is used for fixing a center connecting rod; the lower end of the driving center fixing seat (212) is connected with the bottom plate (24);
the ball sleeve (28) and the thrust needle bearing (29) are also included;
the ball sleeve (28) is sleeved on the center connecting rod and is positioned between the inner wall of the driving center fixing seat (212) and the center connecting rod, and the thrust needle bearing (29) is positioned between the center and the upper end face of the driving center fixing seat (212).
5. A vertical self-positioning device for shaft parts according to claim 3, wherein: the positioning assembly (1) further comprises a limiting plate (15) and two buffers (14);
the two buffers (14) are arranged on the vertical plate (111) in an up-down opposite mode and are positioned on one side of the guide rail sliding block (12);
one end of the limiting plate (15) is arranged on the side face of the center mounting device (19), and the other end of the limiting plate is positioned between the two buffers (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320354369.7U CN219649254U (en) | 2023-03-01 | 2023-03-01 | Vertical self-positioning device for shaft parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320354369.7U CN219649254U (en) | 2023-03-01 | 2023-03-01 | Vertical self-positioning device for shaft parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219649254U true CN219649254U (en) | 2023-09-08 |
Family
ID=87860038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320354369.7U Active CN219649254U (en) | 2023-03-01 | 2023-03-01 | Vertical self-positioning device for shaft parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219649254U (en) |
-
2023
- 2023-03-01 CN CN202320354369.7U patent/CN219649254U/en active Active
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