CN222404530U - Lower center positioning device for end face and outer circle of workpiece - Google Patents
Lower center positioning device for end face and outer circle of workpiece Download PDFInfo
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- CN222404530U CN222404530U CN202421165251.0U CN202421165251U CN222404530U CN 222404530 U CN222404530 U CN 222404530U CN 202421165251 U CN202421165251 U CN 202421165251U CN 222404530 U CN222404530 U CN 222404530U
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- 230000001174 ascending effect Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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Abstract
The utility model discloses a lower center positioning device for end faces and excircles of workpieces, which relates to the technical field of tool clamps and comprises a bottom plate, a lower center part, a clamping jaw part and a driving part, wherein the lower center part comprises a lower center seat arranged on the bottom plate, a positioning disc is arranged above the lower center seat, the clamping jaw part is movably embedded on the positioning disc, and the driving part is used for driving the clamping jaw part to lift so as to clamp and release the workpieces by the clamping jaw part. The utility model has better practical application value and economic benefit of promoting production.
Description
Technical Field
The utility model relates to the technical field of tool clamps, in particular to a lower center positioning device for end faces and excircles of workpieces.
Background
The lower center positioning device is widely applied to industries such as automatic production lines, induction quenching machine tools and the like and is used for clamping and fixing workpieces.
At present, various clamping tools exist in the market, but the clamping tools have more defects, such as low clamping positioning precision of clamping jaws, so that the workpiece is damaged by follow-up actions, a single clamping jaw only corresponds to one workpiece, the clamping jaw is damaged by overlarge force due to overlong stroke of an air cylinder, the clamping jaw is not firmly gripped due to overlarge stroke of the air cylinder, the clamping jaw is damaged by loosening or damaging a gripper and the like.
Disclosure of utility model
Aiming at the defects existing in the prior art, the utility model aims to provide a lower center positioning device for the end face and the outer circle of a workpiece, which is used for greatly improving the positioning accuracy of clamping jaws in a mode that the jaw faces of the clamping jaws are inscribed with the end face and the outer circle of the workpiece, improving the fault tolerance in a six-sided clamping mode, enabling the clamping jaws to be radian and clamping similar workpieces within a certain diameter range, reducing the damage condition of the clamping jaws caused by inconsistent ascending force by using double-cylinder symmetrical installation, improving the grabbing safety of the workpiece, controlling the ascending and descending stroke and speed of the clamping jaws in a plurality of modes, reducing the damage of the workpiece caused by cylinder stop, and having good practical application value and economic benefit for promoting production.
The technical scheme includes that the lower center positioning device for the end face and the outer circle of the workpiece comprises a bottom plate, a lower center part, a clamping jaw part and a driving part, wherein the lower center part comprises a lower center seat arranged on the bottom plate, a positioning disc is arranged above the lower center seat, the clamping jaw part is movably embedded on the positioning disc, and the driving part is used for driving the clamping jaw part to lift, so that the clamping jaw part clamps and releases the workpiece.
The clamping jaw part is further improved in that the clamping jaw part comprises a cylindrical base, a plurality of protruding blocks are arranged on the outer circular surface of the base, and a plurality of inclined outer circular positioning clamping jaws are arranged at the upper ends of the protruding blocks.
The outer circle positioning clamping jaw is further improved in that six outer circle positioning clamping jaws are arranged and distributed on the base, and the jaw faces of the outer circle positioning clamping jaws have radians.
The positioning plate is further improved in that the bottom surface of the positioning plate is connected with a fixing plate, the fixing plate is circular, a plurality of limiting grooves opposite to the protruding blocks are formed in a central hole of the fixing plate, a first avoiding hole matched with the base is formed in the center of the positioning plate, and a plurality of avoiding grooves matched with the outer circle positioning clamping jaw are formed in the avoiding hole.
The clamping jaw part is further improved in that the driving part comprises a pulling plate and two air cylinders, the two air cylinders are fixedly arranged on the bottom plate and located on two sides of the lower center part, two ends of the pulling plate are respectively connected with piston rods of the two air cylinders, the clamping jaw part further comprises a lifting plate, the top surface of the lifting plate is connected with the base through a connecting seat, and the bottom surface of the lifting plate is connected with the pulling plate.
The lower center seat is characterized in that a positioning rotary table is arranged above the lower center seat and connected with a fixed plate through a plurality of guide posts, the lifting plate is provided with guide grooves matched with the guide posts, and the pulling plate is provided with second avoiding holes matched with the guide posts.
The lower center seat is further improved in that a positioning column is arranged on the lower center seat, the upper end of the positioning column sequentially penetrates through the positioning turntable, the pull plate and the lifting plate and then extends into the base, the base is of a hollow structure, an oil-free bushing matched with the top end of the positioning column is arranged in the base, a spring is sleeved outside the positioning column, and two ends of the spring are respectively propped against the positioning turntable and the oil-free bushing.
The lifting plate is further improved in that the base is provided with a first switch support, the first switch support is used for installing a first detection switch, and the first detection switch is used for detecting the position of the lifting plate.
The positioning turntable is provided with a quasi-stop signal panel, the base is provided with a second switch bracket, the second switch bracket is used for installing a second detection switch matched with the quasi-stop signal panel, and the second detection switch is used for detecting the stop position of the lower center seat.
The improvement is that the middle part of the base is provided with a mounting seat which is matched with the lower center part.
The utility model has the beneficial effects that:
the utility model greatly improves the positioning precision of the clamping jaw by a mode that the jaw face of the clamping jaw is internally tangent with the end face and the outer circle of the workpiece, improves the fault tolerance by a six-face clamping mode, enables the clamping jaw to be in radian and clamp similar workpieces within a certain diameter range, reduces the damage condition of the workpiece caused by inconsistent ascending force of the clamping jaw by using double-cylinder symmetrical installation, improves the grabbing safety of the workpiece, controls the lifting stroke and the lifting speed of the clamping jaw by a plurality of modes, reduces the damage of the workpiece caused by cylinder stopping and swinging, and has good practical application value and economic benefit for promoting production.
Drawings
FIG. 1 is a schematic diagram of a lower center positioning device for end surfaces and outer circles of a workpiece in an embodiment of the utility model;
FIG. 2 is a schematic diagram of the operation of the lower center positioning device for the end surface and the outer circle of the workpiece according to the embodiment of the utility model;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a cross-sectional view of FIG. 3;
Fig. 5 is a schematic view of the structure of the lower tip assembly according to an embodiment of the present utility model;
FIG. 6 is a schematic view of a jaw assembly according to an embodiment of the utility model;
FIG. 7 is a schematic view of an outer circle positioning jaw according to an embodiment of the present utility model;
FIG. 8 is a diagram illustrating the operation of the jaw members according to an embodiment of the present utility model;
Fig. 9 is a schematic structural view of a driving part in the embodiment of the present utility model.
Reference numerals:
1-a bottom plate, 11-a mounting seat, 12-a first switch bracket and 13-a second switch bracket;
2-a lower center part, 201-a lower center seat, 202-a positioning turntable, 203-a fixed plate, 204-a positioning disk, 205-a positioning column, 206-a spring, 207-a limit groove, 208-a first avoidance hole, 209-a avoidance groove, 210-a guide column and 211-a quasi-stop signal panel;
3-clamping jaw parts, 31-lifting plates, 32-connecting seats, 33-bases, 34-lugs, 35-excircle positioning clamping jaws, 36-oilless bushings and 37-guide grooves;
4-driving part, 41-cylinder, 42-pull plate and 43-second avoiding hole.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present utility model, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.
In the present utility model, unless explicitly stated or limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, directly connected, or connected via an intermediate medium, or two elements may be in communication. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.
The technical scheme and the beneficial effects of the utility model are more clear and definite by further describing the specific embodiments of the utility model with reference to the drawings in the specification. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.
Referring to fig. 1-4, the embodiment of the utility model provides a lower center positioning device for end faces and excircles of workpieces, which comprises a bottom plate 1, a lower center part 2, a clamping jaw part 3 and a driving part 4, wherein when the end faces of the workpieces are placed on the clamping jaw part 3 and the upper center falls down to fix the workpieces, the driving part 4 drives the clamping jaw part 3 to ascend so as to clamp the workpieces. Specifically, the middle part of the base 33 is provided with a mounting seat 11 adapted to the lower tip part 2. The base 33 is provided with a first switch bracket 12, and the first switch bracket 12 is used for installing a first detection switch for detecting the position of the lifting plate 31 so as to control the stroke of the cylinder. The positioning turntable 202 is provided with a quasi-stop signal panel 211, the base 33 is provided with a second switch bracket 13, the second switch bracket 13 is used for installing a second detection switch matched with the quasi-stop signal panel 211, and the second detection switch is used for detecting the stop position of the lower center seat 201.
Referring to fig. 5, the lower tip component 2 includes a lower tip seat 201 mounted on the bottom plate 1, a positioning disc 204 is disposed above the lower tip seat 201, specifically, a bottom surface of the positioning disc 204 is connected with a fixing plate 203, the fixing plate 203 is ring-shaped, a central hole of the fixing plate 203 is provided with a plurality of limiting grooves 207 opposite to the protruding blocks 34, a central position of the positioning disc 204 is provided with a first avoiding hole 208 adapted to the base 33, and the avoiding hole is provided with a plurality of avoiding grooves 209 adapted to the outer circle positioning clamping jaw 35. A positioning rotary table 202 is arranged above the lower center seat 201, the positioning rotary table 202 is connected with the fixed plate 203 through a plurality of guide posts 210, the lifting plate 31 is provided with a guide groove 37 matched with the guide posts 210, and the pull plate 42 is provided with a second avoiding hole 43 matched with the guide posts 210. The lower center seat 201 is provided with a positioning column 205, the upper end of the positioning column 205 sequentially penetrates through the positioning turntable 202, the pull plate 42 and the lifting plate 31 and then extends into the base 33, the base 33 is of a hollow structure, the base 33 is internally provided with an oil-free bushing 36 matched with the top end of the positioning column 205, the positioning column 205 is sleeved with a spring 206, and two ends of the spring 206 respectively support against the positioning turntable 202 and the oil-free bushing 36 and are in a compressed state in a normal state. The spring is loosened and compressed along with the lifting of the air cylinder, and drives the lifting plate to lift along with the lifting, so as to drive the excircle positioning clamping jaw to lift.
Referring to fig. 6-8, the jaw member 3 is movably embedded in the positioning disc 204, specifically, the jaw member 3 includes a cylindrical base 33, an outer circumferential surface of the base 33 is provided with a plurality of bumps 34, and an upper end of each bump 34 is provided with a plurality of inclined outer circumferential positioning jaws 35. In the embodiment, six excircle positioning clamping jaws 35 are arranged and distributed on the base 33, and the six excircle positioning clamping jaws 35 can improve the clamping jaw fault tolerance, and the claw surfaces of the excircle positioning clamping jaws 35 have radians, so that the excircle positioning clamping jaws can clamp similar workpieces within a certain diameter range. The claw surface of the outer circle positioning clamping claw 35 is internally tangent with the outer circle of the workpiece.
Referring to fig. 9, the driving component 4 is used for driving the jaw component 3 to lift, so as to clamp and release the workpiece by the jaw component 3. Specifically, the driving part 4 comprises a pull plate 42 and two air cylinders 41, the two air cylinders 41 are fixedly arranged on the bottom plate 1 and positioned on two sides of the lower center part 2, two ends of the pull plate 42 are respectively connected with piston rods of the two air cylinders 41, the clamping jaw part 3 further comprises a lifting plate 31, the top surface of the lifting plate 31 is connected with the base 33 through a connecting seat 32, and the bottom surface of the lifting plate 31 is connected with the pull plate 42.
In the description of the present utility model, a description of the terms "one embodiment," "preferred," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model, and a schematic representation of the terms described above in the present specification does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
From the above description of the structure and principles, it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, but rather that modifications and substitutions using known techniques in the art on the basis of the present utility model fall within the scope of the present utility model, which is defined by the appended claims.
Claims (10)
1. The lower center positioning device for the end face and the outer circle of the workpiece comprises a bottom plate (1) and is characterized by further comprising a lower center part (2), a clamping jaw part (3) and a driving part (4);
The lower tip part (2) comprises a lower tip seat (201) arranged on the bottom plate (1), and a positioning disc (204) is arranged above the lower tip seat (201);
The clamping jaw part (3) is movably embedded on the positioning disc (204);
The driving component (4) is used for driving the clamping jaw component (3) to lift, so that the clamping jaw component (3) clamps and releases a workpiece.
2. The lower center positioning device for the end face and the outer circle of a workpiece according to claim 1, wherein the clamping jaw part (3) comprises a cylindrical base (33), the outer circle surface of the base (33) is provided with a plurality of protruding blocks (34), and the upper ends of the protruding blocks (34) are provided with a plurality of inclined outer circle positioning clamping jaws (35).
3. The lower center positioning device for the end face and the outer circle of the workpiece according to claim 2, wherein six outer circle positioning clamping jaws (35) are arranged and are distributed on a base (33), and the jaw faces of the outer circle positioning clamping jaws (35) have radians.
4. The lower center positioning device for the end face and the outer circle of the workpiece according to claim 2, wherein the bottom face of the positioning disc (204) is connected with a fixing plate (203), the fixing plate (203) is annular, a plurality of limiting grooves (207) opposite to the protruding blocks (34) are formed in a center hole of the fixing plate (203), a first avoiding hole (208) matched with the base (33) is formed in the center of the positioning disc (204), and a plurality of avoiding grooves (209) matched with the outer circle positioning clamping jaw (35) are formed in the avoiding hole.
5. The lower center positioning device for the end face and the outer circle of a workpiece according to claim 4, wherein the driving part (4) comprises a pull plate (42) and two air cylinders (41), the two air cylinders (41) are fixedly arranged on the bottom plate (1) and are positioned on two sides of the lower center part (2), two ends of the pull plate (42) are respectively connected with piston rods of the two air cylinders (41), the clamping jaw part (3) further comprises a lifting plate (31), the top surface of the lifting plate (31) is connected with the base (33) through a connecting seat (32), and the bottom surface of the lifting plate (31) is connected with the pull plate (42).
6. The lower center positioning device for the end face and the outer circle of the workpiece according to claim 5, wherein a positioning rotary table (202) is arranged above the lower center seat (201), the positioning rotary table (202) is connected with a fixed plate (203) through a plurality of guide posts (210), the lifting plate (31) is provided with a guide groove (37) matched with the guide posts (210), and the pulling plate (42) is provided with a second avoiding hole (43) matched with the guide posts (210).
7. The lower center positioning device for the end face and the outer circle of the workpiece according to claim 6, wherein a positioning column (205) is arranged on the lower center seat (201), the upper end of the positioning column (205) sequentially penetrates through the positioning turntable (202), the pull plate (42) and the lifting plate (31) and then extends into the base (33), the base (33) is of a hollow structure, an oil-free bushing (36) matched with the top end of the positioning column (205) is arranged in the base (33), a spring (206) is sleeved outside the positioning column (205), and two ends of the spring (206) respectively prop against the positioning turntable (202) and the oil-free bushing (36).
8. The lower center positioning device for the end face and the outer circle of a workpiece according to claim 5, wherein the base (33) is provided with a first switch bracket (12), the first switch bracket (12) is used for installing a first detection switch, and the first detection switch is used for detecting the position of the lifting plate (31).
9. The lower center positioning device for the end face and the outer circle of a workpiece according to claim 6, wherein the positioning turntable (202) is provided with a quasi-stop signal disc (211), the base (33) is provided with a second switch bracket (13), and the second switch bracket (13) is used for installing a second detection switch matched with the quasi-stop signal disc (211) and used for detecting the stop position of the lower center seat (201).
10. The lower tip positioning device for the end face and the outer circle of a workpiece according to claim 1, characterized in that the middle part of the base (33) is provided with a mounting seat (11) adapted to the lower tip part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421165251.0U CN222404530U (en) | 2024-05-25 | 2024-05-25 | Lower center positioning device for end face and outer circle of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421165251.0U CN222404530U (en) | 2024-05-25 | 2024-05-25 | Lower center positioning device for end face and outer circle of workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222404530U true CN222404530U (en) | 2025-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421165251.0U Active CN222404530U (en) | 2024-05-25 | 2024-05-25 | Lower center positioning device for end face and outer circle of workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222404530U (en) |
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- 2024-05-25 CN CN202421165251.0U patent/CN222404530U/en active Active
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