CN215469947U - Height compensation mechanism of rotary fixture - Google Patents
Height compensation mechanism of rotary fixture Download PDFInfo
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- CN215469947U CN215469947U CN202121966844.3U CN202121966844U CN215469947U CN 215469947 U CN215469947 U CN 215469947U CN 202121966844 U CN202121966844 U CN 202121966844U CN 215469947 U CN215469947 U CN 215469947U
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Abstract
The utility model discloses a height compensation mechanism of a rotary clamp, which comprises a first connecting plate arranged on a lifting assembly and a second connecting plate connected with the rotary clamp, wherein the first connecting plate is connected with the second connecting plate through a plurality of elastic supporting assemblies; the elastic support assembly comprises a guide rod, a first sleeve and a second sleeve are sleeved on the guide rod, a first flanging is arranged on the upper end face of the first sleeve, a second flanging is arranged on the upper end face of the second sleeve, and the first connecting plate is sleeved between the first flanging and the second flanging; a spring is further sleeved on the periphery of the second sleeve, and an end plate is further arranged at the upper end of the guide rod; the height compensation mechanism can buffer the downward acting force of the lifting assembly, provides the condition of high flexibility compensation in the pressing process, can prevent the clamp from generating overpressure or incomplete pressing when the clamp is used for taking and placing parts, and is favorable for improving the processing accuracy of subsequent procedures.
Description
Technical Field
The utility model relates to the technical field of tool fixtures, in particular to a height compensation mechanism of a rotary fixture.
Background
The material transfer mechanism in the prior art is generally operated by a mechanical hand, such as a three-axis mechanism, a four-axis mechanism or a five-axis mechanism, and realizes horizontal transfer, vertical transfer and the like, and as disclosed in the Chinese utility model (publication number: CN213293975U) in 2021, a rotary manipulator comprises a translation assembly, a lifting assembly, a rotating assembly and a clamping jaw mechanism, and can realize automatic feeding and discharging, so that the production efficiency is improved, the labor force is liberated, and the labor intensity is reduced. However, the manipulator lacks height compensation and protection functions in the process of lifting, taking and placing materials, and easily causes the phenomenon that parts are excessively clamped or are not clamped in place.
Disclosure of Invention
The utility model aims to provide a height compensation mechanism of a rotary clamp, aiming at the problems in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a height compensation mechanism of a rotary clamp comprises a first connecting plate arranged at the output end of a lifting assembly and a second connecting plate connected with the rotary clamp, wherein the first connecting plate and the second connecting plate are connected through a plurality of elastic supporting assemblies and are arranged in parallel; the elastic support assembly comprises a guide rod, the guide rod penetrates through the first connecting plate, the end part of the guide rod is connected with the second connecting plate, a first sleeve and a second sleeve are sleeved on the guide rod, the second sleeve is located below the first sleeve, a first flanging is arranged on the upper end face of the first sleeve, a second flanging is arranged on the upper end face of the second sleeve, and the first connecting plate is sleeved between the first flanging and the second flanging; the periphery of the second sleeve is further sleeved with a spring, and the upper end part of the guide rod is further provided with an end plate.
This height compensation mechanism passes through the second connecting plate first connecting plate and a plurality of the cooperation setting of elastic support subassembly can cushion the decurrent effort of lifting unit provides the condition of high flexibility compensation in the pushing down process, can prevent that anchor clamps from appearing the excessive pressure of part or not in place the condition of impressing when getting the part, has avoided the part dress card not in place, is favorable to improving the processing accuracy of subsequent handling.
In an initial state, the lifting assembly is connected with the first connecting plate, the first connecting plate is connected with the second connecting plate through a plurality of elastic supporting assemblies, the second connecting plate is connected with the rotary clamp, and the lifting assembly and the second connecting plate are all in a relaxed state; when the lifting device works, the lifting component moves downwards to drive the rotary fixture below to move downwards, when a workpiece clamped on the rotary fixture is placed at a designated position, the following situation occurs, at the moment, if the workpiece is not clamped in place, the lifting component continues to move downwards, the first connecting plate firstly moves downwards to drive the second sleeve to compress the spring, and then the second connecting plate slowly moves downwards under the buffered downward pressure to enable the workpiece clamped by the rotary fixture to be clamped slowly and stably; at the moment, if the workpiece is overpressured in the pressing process, the rotating clamp bears upward reaction force, and the reaction force can enable the second connecting plate to slightly move upwards to release pressure without influencing the lifting assembly, so that the self-adaptive effect is achieved.
The first connecting plate and the second connecting plate are arranged in parallel, have larger areas, and can stably transmit downward force and disperse stress by combining the connection of a plurality of elastic supporting assemblies; the arrangement of the guide rod plays a role in guiding, the arrangement of the first sleeve and the second sleeve is convenient for the installation of the spring and the first connecting plate, and when the first connecting plate moves downwards, the second sleeve moves downwards to compress the spring. The first flanging and the second flanging are arranged to play supporting and limiting roles, and the first connecting plate can be sleeved in the range of the first sleeve all the time.
Further, the guide bar is the round bar, the end plate is the plectane, the lower extreme of guide bar with the second connecting plate spiro union is fixed, the upper end of guide bar with the end plate also spiro union is fixed, the periphery size of end plate is greater than through-hole internal diameter size on the first connecting plate.
The setting of end plate can avoid first sleeve with first connecting plate is deviate from the top, can dismantle the setting of spiro union, the equipment of each part of being convenient for.
Further, the outer diameter of the lower end face of the first sleeve is larger than the inner diameter of the upper end face of the second sleeve, and the sum of the axial heights of the first sleeve and the second sleeve is smaller than the axial height of the guide rod.
Such an arrangement can avoid overlapping of the second sleeve and the first sleeve, the second sleeve being capable of supporting the first sleeve; the guide rod is long in length and can provide a moving space for the first sleeve and the second sleeve.
Furthermore, a rectangular shallow groove is formed in the periphery of the middle of the guide rod, and an overlapping area is formed between the rectangular shallow groove and the first sleeve and between the rectangular shallow groove and the second sleeve. Shallow slots are also formed in the inner peripheries of the first sleeve and the second sleeve, and axial long keys are arranged between the shallow slots, so that a limiting effect can be achieved, and the first sleeve and the second sleeve are prevented from rotating or swinging relative to the guide rod in the circumferential direction.
Furthermore, the lifting assembly is an air cylinder or an electric cylinder, and an output end below the lifting assembly is fixedly connected with the middle part of the first connecting plate in a threaded manner.
Further, rotary fixture includes revolving cylinder, revolving cylinder's shell spiro union is fixed the below of second connecting plate, revolving cylinder's output is the rotating head, the spiro union has clamping jaw subassembly on the rotating head.
Further, the clamping jaw subassembly include with the installation body that the rotating head is connected, the front end symmetry of installation body is equipped with a pair of telescopic cylinder, telescopic cylinder's output sets up outwards, telescopic cylinder's output spiro union has the clamping jaw respectively, and is a pair of clamping jaw symmetry sets up clamping jaw subassembly's both sides, the tip inboard still spiro union of clamping jaw has the clamp splice.
Compared with the prior art, the utility model has the beneficial effects that: 1. the height compensation mechanism is arranged by matching the second connecting plate, the first connecting plate and the elastic supporting assemblies, can buffer the downward acting force of the lifting assembly, provides a high-flexibility compensation condition in the pressing process, can prevent the clamp from generating over-pressure or incomplete pressing in the part when the clamp is used for taking and placing the part, and is beneficial to improving the processing accuracy of subsequent procedures; 2. the first connecting plate and the second connecting plate are arranged in parallel, and can stably transmit downward force and disperse stress by combining the connection of a plurality of elastic supporting assemblies; 3. the guide rod is arranged to play a guiding role, the first sleeve and the second sleeve are arranged conveniently, the spring and the first connecting plate are installed, the first flanging and the second flanging are arranged to play supporting and limiting roles, and the first connecting plate can be always sleeved in the axial range of the first sleeve.
Drawings
FIG. 1 is a schematic view of the overall structure of a height compensation mechanism of a rotary jig according to the present invention;
FIG. 2 is a first perspective view of the connection between the first connecting plate and the second connecting plate according to the present invention;
FIG. 3 is a schematic perspective view of the connection between the first connecting plate and the second connecting plate according to the present invention;
FIG. 4 is a schematic perspective view of the elastic support assembly of the present invention;
FIG. 5 is a schematic view of an exploded structure of the flexible support assembly of the present invention;
FIG. 6 is a schematic view of a height compensation mechanism of a rotary jig according to the present invention;
in the figure: 1. a lifting assembly; 2. rotating the clamp; 201. a rotating cylinder; 202. rotating the head; 203. installing a body; 204. a clamping jaw; 205. a clamping block; 3. a first connecting plate; 4. a second connecting plate; 5. an elastic support member; 501. a guide bar; 502. an end plate; 503. a first sleeve; 504. a second sleeve; 505. a first flanging; 506. second flanging; 507. rectangular shallow grooves.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 to 5, a height compensation mechanism for a rotary fixture comprises a first connecting plate 3 disposed at an output end of a lifting assembly 1, and a second connecting plate 4 connected to the rotary fixture 2, wherein the first connecting plate 3 and the second connecting plate 4 are connected by a plurality of elastic support assemblies 5, and the first connecting plate 3 and the second connecting plate 4 are disposed in parallel; the elastic support assembly 5 comprises a guide rod 501, the guide rod 501 penetrates through the first connecting plate 3 and is connected with the second connecting plate 4 at the end part, a first sleeve 503 and a second sleeve 504 are sleeved on the guide rod 501, the second sleeve 504 is positioned below the first sleeve 503, a first flanging 505 is arranged on the upper end surface of the first sleeve 503, a second flanging 506 is arranged on the upper end surface of the second sleeve 504, and the first connecting plate 3 is sleeved between the first flanging 505 and the second flanging 506; the second sleeve 504 is further sleeved with a spring (both shown in the figures), and the upper end of the guide rod 501 is further provided with an end plate 502.
This height compensation mechanism passes through second connecting plate 4 first connecting plate 3 and a plurality of the cooperation setting of elastic support subassembly 5 can cushion the decurrent effort of lifting unit provides the condition of high flexibility compensation in the pushing down process, can prevent that anchor clamps from appearing the excessive pressure of part or not in place the condition of impressing when getting the part, has avoided the part dress card not in place, is favorable to improving the processing accuracy of subsequent handling.
In an initial state, the lifting assembly 1 is connected with the first connecting plate 3, the first connecting plate 3 is connected with the second connecting plate 4 through a plurality of elastic supporting assemblies 5, the second connecting plate 4 is connected with the rotary clamp 2, and the components are in a relaxed state; when the clamping device works, the lifting assembly 1 moves downwards to drive the lower rotary clamp 2 to move downwards, when a workpiece clamped on the rotary clamp 2 is placed on a designated position, the following situation occurs, at the moment, if the workpiece is not clamped in place, the lifting assembly 1 continues to move downwards, the first connecting plate 3 moves downwards to drive the second sleeve 504 to compress the spring, and then the second connecting plate 4 slowly moves downwards under the buffered downward pressure to slowly and stably clamp the workpiece clamped by the rotary clamp 2; if the workpiece is overpressurized in the pressing process, the rotating clamp 2 is subjected to upward reaction force, and the reaction force can enable the second connecting plate 4 to slightly move upwards to release pressure without affecting the lifting assembly, so that the self-adaptive effect is achieved.
The first connecting plate 3 and the second connecting plate 4 are arranged in parallel, have larger areas, and can stably transmit downward force and disperse stress by combining the connection of a plurality of elastic supporting components 5; the arrangement of the guide rod 501 plays a guiding role, the arrangement of the first sleeve 503 and the second sleeve 504 facilitates the installation of the spring and the first connecting plate 3, and when the first connecting plate 3 moves downwards, the second sleeve 504 can move downwards to compress the spring. The first flange 505 and the second flange 506 are arranged to support and limit, so that the first connecting plate 3 can be always sleeved in the range of the first sleeve 503.
Further, the guide rod 501 is a round rod, the end plate 502 is a round plate, the lower end of the guide rod 501 is fixedly connected with the second connecting plate 4 in a threaded manner, the upper end of the guide rod 501 is fixedly connected with the end plate 502 in a threaded manner, and the peripheral size of the end plate 502 is larger than the inner diameter size of the through hole in the first connecting plate 3.
The end plate 502 can prevent the first sleeve 503 and the first connecting plate 3 from being separated from the upper part, and the arrangement of the detachable screw joint is convenient for assembling all the parts.
Further, the outer diameter of the lower end surface of the first sleeve 503 is larger than the inner diameter of the upper end surface of the second sleeve 504, and the sum of the axial heights of the first sleeve 503 and the second sleeve 504 is smaller than the axial height of the guide rod 501.
Such an arrangement can avoid overlapping of the second sleeve 504 and the first sleeve 503, the second sleeve 504 being capable of supporting the first sleeve 503; the guide rod 501 has a longer length so as to provide a space for the first sleeve 503 and the second sleeve 504 to move.
Further, a rectangular shallow groove 507 is formed in the periphery of the middle of the guide rod 501, and axial overlapping areas are formed between the rectangular shallow groove 507 and the first sleeve 503 and the second sleeve 504. Shallow grooves are also formed in the inner peripheries of the first sleeve 503 and the second sleeve 504, and an axial long key is arranged between the shallow grooves, so that a limiting effect can be achieved, and the first sleeve and the second sleeve are prevented from rotating or shaking circumferentially relative to the guide rod.
Example two:
this embodiment provides a use state of the height compensating mechanism in the first embodiment.
Referring to fig. 1 and 6, the lifting assembly 1 is a cylinder, the lifting assembly 1 is installed on a slider of the linear module, and an output end below the lifting assembly 1 is fixed to the middle of the first connecting plate 3 in a threaded manner.
A rotary worktable is arranged below the rotary clamp 2, and a clamping clamp for placing a workpiece is arranged on the rotary worktable; the rotary fixture 2 comprises a rotary cylinder 201, the shell of the rotary cylinder 201 is screwed and fixed below the second connecting plate 4, the output end of the rotary cylinder 201 is a rotary head 202, and a clamping jaw assembly is screwed and connected onto the rotary head 202.
Further, the clamping jaw assembly include with installation body 203 that rotating head 202 is connected, the front end symmetry of installation body 203 is equipped with a pair of telescopic cylinder, telescopic cylinder's output sets up outwards, telescopic cylinder's output spiro union has clamping jaw 204 respectively, and is a pair of clamping jaw 204 symmetry sets up clamping jaw assembly's both sides, clamping jaw 204's tip inboard still spiro union has clamp splice 205. The simultaneous extension and retraction of the pair of telescopic cylinders enables the loosening and clamping operation of the clamping jaw 204.
When the clamping jaw 204 clamps and takes materials and places the materials in the clamping fixture, the height compensation structure can adjust the height in a self-adaptive mode, appropriate downward pressure is provided, and the materials are clamped accurately in place.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The height compensation mechanism of the rotary clamp is characterized by comprising a first connecting plate and a second connecting plate, wherein the first connecting plate is arranged at the output end of a lifting assembly, the second connecting plate is connected with the rotary clamp, the first connecting plate and the second connecting plate are connected through a plurality of elastic supporting assemblies, and the first connecting plate and the second connecting plate are arranged in parallel; the elastic support assembly comprises a guide rod, the guide rod penetrates through the first connecting plate, the end part of the guide rod is connected with the second connecting plate, a first sleeve and a second sleeve are sleeved on the guide rod, the second sleeve is located below the first sleeve, a first flanging is arranged on the upper end face of the first sleeve, a second flanging is arranged on the upper end face of the second sleeve, and the first connecting plate is sleeved between the first flanging and the second flanging; the periphery of the second sleeve is further sleeved with a spring, and the upper end part of the guide rod is further provided with an end plate.
2. The height compensation mechanism of claim 1, wherein the guide rod is a round rod, the end plate is a round plate, the lower end of the guide rod is fixed to the second connection plate by screwing, the upper end of the guide rod is fixed to the end plate by screwing, and the outer circumference of the end plate is larger than the inner diameter of the through hole of the first connection plate.
3. The height compensating mechanism of a rotary jig according to claim 1, wherein an outer diameter of a lower end surface of the first sleeve is larger than an inner diameter of an upper end surface of the second sleeve, and a sum of axial heights of the first sleeve and the second sleeve is smaller than an axial height of the guide rod.
4. The height compensating mechanism of a rotary jig according to claim 1, wherein the guide bar is provided at an outer circumference of a middle portion thereof with a rectangular shallow groove.
5. The height compensation mechanism of a rotary jig according to claim 1, wherein the lifting assembly is an air cylinder or an electric cylinder, and an output end below the lifting assembly is fixed to the middle portion of the first connection plate by screwing.
6. The height compensation mechanism of claim 1, wherein the rotary fixture comprises a rotary cylinder, a housing of the rotary cylinder is screwed and fixed below the second connecting plate, an output end of the rotary cylinder is a rotary head, and a clamping jaw assembly is screwed and connected onto the rotary head.
7. The height compensation mechanism of a rotary fixture according to claim 6, wherein the clamping jaw assembly comprises a mounting body connected with the rotary head, the front end of the mounting body is symmetrically provided with a pair of telescopic cylinders, the output ends of the telescopic cylinders are arranged outwards, the output ends of the telescopic cylinders are respectively screwed with clamping jaws, the pair of clamping jaws are symmetrically arranged at two sides of the clamping jaw assembly, and the inner sides of the end parts of the clamping jaws are further screwed with clamping blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121966844.3U CN215469947U (en) | 2021-08-20 | 2021-08-20 | Height compensation mechanism of rotary fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121966844.3U CN215469947U (en) | 2021-08-20 | 2021-08-20 | Height compensation mechanism of rotary fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215469947U true CN215469947U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121966844.3U Active CN215469947U (en) | 2021-08-20 | 2021-08-20 | Height compensation mechanism of rotary fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215469947U (en) |
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2021
- 2021-08-20 CN CN202121966844.3U patent/CN215469947U/en active Active
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