CN210908169U - Internal-expansion laminating type thin-wall roller clamping device - Google Patents
Internal-expansion laminating type thin-wall roller clamping device Download PDFInfo
- Publication number
- CN210908169U CN210908169U CN201921965338.5U CN201921965338U CN210908169U CN 210908169 U CN210908169 U CN 210908169U CN 201921965338 U CN201921965338 U CN 201921965338U CN 210908169 U CN210908169 U CN 210908169U
- Authority
- CN
- China
- Prior art keywords
- ejector block
- connecting rod
- block
- mandrel
- tensioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model provides an internal expanding laminating formula thin wall cylinder clamping device, including the dabber, the spindle is equipped with fixed kicking block, unsteady kicking block and activity kicking block from preceding backward in proper order the cover, and fixed kicking block is the same with activity kicking block structure, and mutual symmetry sets up, has four tight pieces that rise along the circumferencial direction equipartition between fixed kicking block and the unsteady kicking block, has four tight pieces that rise along the circumferencial direction equipartition between activity kicking block and the unsteady kicking block, all is connected through the connecting rod between tight piece and the fixed kicking block and between tight piece that rises and the activity kicking block. Compared with the prior art, the beneficial effects of the utility model reside in that: the rough machining and the precise machining of the part can be completed under the condition of one-time clamping and positioning, and the size, the shape precision and the position tolerance of each size of the part are ensured.
Description
Technical Field
The invention relates to the technical field of precision manufacturing schemes, in particular to an internal-expansion laminating type thin-wall roller clamping device.
Background
In the fields of mechanical processing and manufacturing industry, food processing industry, grain manufacturing industry, light industry and the like, as well as various industries, a large number of devices produce conveying line devices, and the devices need to use roller type parts. The parts are generally characterized by large size, thin wall, high size precision, high surface smoothness requirement and high rolling precision. Therefore, the universal clamping and processing method is difficult to meet the processing requirements and characteristics of the parts, and in order to improve the production efficiency, reduce the production cost and achieve the processing precision, a professional clamping and positioning device must be designed for the processing and manufacturing of different roller parts so as to meet the processing requirements and characteristics of the roller parts.
At present, roller parts have the characteristics of thin wall, high dimensional accuracy, high surface smoothness requirement, high rolling accuracy and the like, so repeated clamping and positioning processing is very unfavorable for the manufacturing accuracy of the parts. When a part is clamped by a conventional chuck, the clamping part is interfered and cannot finish processing once, and secondary clamping is needed, so that the precision and the surface quality of the part cannot be guaranteed.
Disclosure of Invention
In order to solve the problems, the invention discloses an internal-expansion fit type thin-wall roller clamping device which completes the rough machining and the precise machining of a part under the condition of one-time clamping and positioning, and ensures the size, the shape precision and the position tolerance of each size of the part.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides an internal expanding laminating formula thin wall cylinder clamping device which characterized in that: the clamping device comprises a mandrel, wherein a fixed ejector block, a floating ejector block and a movable ejector block are sequentially sleeved on the mandrel from front to back, the fixed ejector block and the movable ejector block are identical in structure and are symmetrically arranged with each other, four tensioning blocks are uniformly distributed between the fixed ejector block and the floating ejector block along the circumferential direction, four tensioning blocks are uniformly distributed between the movable ejector block and the floating ejector block along the circumferential direction, and the tensioning blocks are connected with the fixed ejector block and the movable ejector block through connecting rods; the vertical section of the tensioning block is an isosceles triangle, wherein the surfaces of two waists are tensioning block inclined surfaces, the surface of the bottom edge is an arc surface, the middle part of the edge with the top angle is communicated with the two tensioning block inclined surfaces, and tensioning block positioning pin holes are symmetrically formed in the middle parts of two sides of the tensioning block; the fixed ejector block is of a disc-shaped structure, a through hole matched with the mandrel is formed in the middle of the fixed ejector block in the axis direction, four ejector block inclined planes are uniformly distributed on one side, close to the floating ejector block, of the fixed ejector block in the circumferential direction, the ejector block inclined planes are matched with the tensioning block inclined planes, a second connecting rod mounting groove is formed in the middle of each ejector block inclined plane, and second connecting rod fixing pin holes are symmetrically formed in the middles of two sides of each second connecting rod mounting groove; the floating ejector block is of a cylindrical structure, a through hole matched with the mandrel is formed in the middle of the floating ejector block along the axis direction, four floating ejector block inclined planes are uniformly distributed at the end part of the floating ejector block along the circumferential direction, and the floating ejector block inclined planes are matched with the tensioning block inclined planes; the connecting rod fixing device is characterized in that a connecting rod waist circular groove and a first connecting rod fixing pin hole are formed in two ends of the side face of the connecting rod respectively, the first connecting rod fixing pin hole is connected with a second connecting rod fixing pin hole through a connecting rod fixing pin, and the connecting rod waist circular groove is connected with a tensioning block positioning pin hole through a tensioning block fixing pin.
Further, be equipped with dabber location boss on the anterior segment of dabber, be equipped with the external screw thread on the back end, dabber thimble hole has been seted up to rear end middle part terminal surface, dabber location boss offsets with fixed kicking block front end.
Further, still overlap on the back end of dabber and be equipped with packing ring and the nut that sets up around, the packing ring supports with the rear end of activity kicking block, nut threaded connection is on the back end of dabber.
Furthermore, thin-wall roller parts are installed outside the eight tensioning blocks in a matched mode.
Compared with the prior art, the invention has the beneficial effects that:
1. when the tool is used, the tool is in a mode of clamping one top, the machining precision of parts can be guaranteed most in a mechanical manufacturing process, and the tool can be used in different devices in a turnover mode, so that accumulated errors in the machining process are avoided;
2. the screw thread is used as axial thrust, and the thrust is stable, reliable and adjustable;
3. the axial thrust is converted into the radial thrust through the inclined plane, so that the structure is clear and stable;
4. the tensioning block adopts two symmetrically arranged inclined planes, so that the radial motion of the tensioning block is reliable, stable and consistent;
5. the arc surface of the tensioning block is the same as the arc of the inner surface of the thin-wall roller part, the tensioning block is completely attached during tensioning, the most stable attaching force is ensured, meanwhile, the thin-wall roller part cannot be deformed due to surface contact, and the precision of the part processing process is effectively controlled;
6. the vertical section of the tension block is an isosceles triangle, and the radial movement distance is large from the initial position to the tension position, so that the device can expand the thin-wall roller with the edge reinforcing ribs at the roller opening;
7. one end of the connecting rod connected with the tensioning block is of a kidney-shaped groove structure, and the tensioning block fixing pin can slide in the groove when the tensioning block moves in the radial direction, so that the tensioning block can smoothly complete the radial movement and the connecting rod can swing in an arc shape;
8. when the roller parts are long, the number of the floating jacking blocks and the number of the tensioning blocks can be increased, the combination and the expansion are convenient, the principle and the process are unchanged, and the hardware expansion is easy to realize.
Drawings
Fig. 1 is a schematic view of an internal expanding fit type thin-wall roller clamping device of the invention.
Fig. 2 is a schematic structural diagram of an internal expanding fit type thin-wall roller clamping device of the present invention.
Fig. 3 is a schematic structural diagram of a tensioning block in the internal-expansion fit type thin-wall roller clamping device of the invention.
Fig. 4 is a schematic structural diagram of a fixed top block in the internal expanding fit type thin-wall roller clamping device of the present invention.
Fig. 5 is a schematic structural diagram of a floating top block in the internal-expansion fit type thin-wall roller clamping device of the present invention.
Fig. 6 is a schematic structural diagram of a connecting rod in an inward-expanding fit type thin-walled roller clamping device according to the present invention.
Fig. 7 is a schematic connection diagram of a fixed top block and a tensioning block in the internal-expansion fit type thin-wall roller clamping device of the invention.
Fig. 8 is a schematic structural diagram of a mandrel in an internal expanding fit type thin-walled cylinder clamping device according to the present invention.
Fig. 9 is a schematic view of the internal expanding fit type thin-wall roller clamping device in operation.
List of reference numerals:
1-mandrel, 11-mandrel positioning boss, 12-mandrel thimble hole, 2-fixed ejector block, 21-second connecting rod fixing pinhole, 22-ejector block inclined plane, 23-second connecting rod installation groove, 3-tensioning block, 31-tensioning block inclined plane, 32-tensioning block positioning pinhole, 33-first connecting rod installation groove, 4-floating ejector block, 41-floating ejector block inclined plane, 5-movable ejector block, 6-gasket, 7-nut, 8-connecting rod fixing pin, 9-connecting rod, 91-connecting rod waist circular groove, 92-first connecting rod fixing pinhole, 10-tensioning block fixing pin, 13-thin-wall roller part, 14-tip, 15-main shaft clamping mechanism.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figures, the internal-expansion attaching type thin-wall roller clamping device comprises a mandrel 1, wherein a fixed ejector block 2, a floating ejector block 4 and a movable ejector block 5 are sequentially sleeved on the mandrel 1 from front to back, the fixed ejector block 2 and the movable ejector block 5 are identical in structure and are symmetrically arranged with each other, four tensioning blocks 3 are uniformly distributed between the fixed ejector block 2 and the floating ejector block 4 along the circumferential direction, four tensioning blocks 3 are uniformly distributed between the movable ejector block 5 and the floating ejector block 4 along the circumferential direction, and the tensioning blocks 3 and the fixed ejector block 2 and the tensioning blocks 3 and the movable ejector block 5 are connected through connecting rods 9; the vertical section of the tensioning block 3 is an isosceles triangle, wherein the surfaces of two waists are tensioning block inclined surfaces 31, the surface of the bottom edge is an arc surface, the middle part of the edge with the top angle is provided with a first connecting rod installation groove 33 towards the surface of the bottom edge, the first connecting rod installation groove 33 is communicated with the two tensioning block inclined surfaces 31, and the middle parts of two sides of the tensioning block 3 are symmetrically provided with tensioning block positioning pin holes 32; the fixed ejector block 2 is of a disc-shaped structure, a through hole matched with the mandrel 1 is formed in the middle of the fixed ejector block 2 along the axis direction, four ejector block inclined planes 22 are uniformly distributed on one side, close to the floating ejector block 4, of the fixed ejector block 2 along the circumferential direction, the ejector block inclined planes 22 are matched with the tensioning block inclined plane 31, a second connecting rod installation groove 23 is formed in the middle of each ejector block inclined plane 22, and second connecting rod fixing pin holes 21 are symmetrically formed in the middles of two sides of each second connecting rod installation groove 23; the floating ejector block 4 is of a cylindrical structure, a through hole matched with the mandrel 1 is formed in the middle of the floating ejector block along the axis direction, four floating ejector block inclined planes 41 are uniformly distributed at the end part of the floating ejector block 4 along the circumferential direction, and the floating ejector block inclined planes 41 are matched with the tensioning block inclined plane 31; a connecting rod waist circular groove 91 and a first connecting rod fixing pin hole 92 are respectively formed in two ends of the side face of the connecting rod 9, the first connecting rod fixing pin hole 92 is connected with the second connecting rod fixing pin hole 21 through a connecting rod fixing pin 8, and the connecting rod waist circular groove 91 is connected with the tensioning block positioning pin hole 32 through a tensioning block fixing pin 10. The arc surface of the tensioning block 3 is consistent with the arc of the inner wall of the thin-wall roller part 13, so that the arc surface is effectively ensured to be completely attached during working.
In this embodiment, be equipped with dabber location boss 11 on the anterior segment of dabber 1, be equipped with the external screw thread on the back end, dabber thimble hole 12 has been seted up at the rear end middle part, and dabber location boss 11 offsets with fixed kicking block 2 front end.
In this embodiment, the rear section of the mandrel 1 is further sleeved with a gasket 6 and a nut 7 which are arranged in the front and back direction, the gasket 6 abuts against the rear end of the movable top block 5, and the nut 7 is in threaded connection with the rear section of the mandrel 1.
In this embodiment, the eight tensioning blocks 3 are externally fitted with thin-walled roller parts 13.
The working principle of the invention is as follows: when the part is initially processed, the front end of the mandrel 1 of the device is clamped by a machine tool spindle clamping mechanism 15, the thin-wall roller part 13 is sleeved into the internal expanding fit type thin-wall roller clamping device, the nut 7 is screwed, under the action of the screw thread, the nut 7 pushes the movable top block 5 and the floating top block 4 to move axially through the gasket 6, under the action of the ejector block inclined planes of the movable ejector block 5 and the floating ejector block 4, the tension block 3 is pushed out through the tension block inclined plane 31, so that the tension block 3 moves radially until the workpiece is tensioned, a centre 14 concentric with a main shaft of a machine tool is pressed against a mandrel centre hole 12, after the initial rough machining is finished, the thin-wall roller part and the clamping device are taken down together and put into a finishing machine tool for direct use, therefore, repeated positioning and clamping for more than two times are avoided, and switching between precision machining procedures of different means can be ensured under the conditions of safety, stability and machining precision guarantee.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (4)
1. The utility model provides an internal expanding laminating formula thin wall cylinder clamping device which characterized in that: the mandrel comprises a mandrel (1), wherein a fixed ejector block (2), a floating ejector block (4) and a movable ejector block (5) are sequentially sleeved on the mandrel (1) from front to back, the fixed ejector block (2) and the movable ejector block (5) are identical in structure and are symmetrically arranged with each other, four tension blocks (3) are uniformly distributed between the fixed ejector block (2) and the floating ejector block (4) along the circumferential direction, four tension blocks (3) are uniformly distributed between the movable ejector block (5) and the floating ejector block (4) along the circumferential direction, and the tension blocks (3) and the fixed ejector block (2) and the tension blocks (3) and the movable ejector block (5) are connected through connecting rods (9);
the vertical section of the tensioning block (3) is an isosceles triangle, wherein the surfaces of two waists are tensioning block inclined surfaces (31), the surface of the bottom edge is an arc surface, the middle part of the edge with the vertex angle is provided with a first connecting rod installation groove (33) towards the surface of the bottom edge, the first connecting rod installation groove (33) is communicated with the two tensioning block inclined surfaces (31), and the middle parts of two sides of the tensioning block (3) are symmetrically provided with tensioning block positioning pin holes (32);
the fixed ejector block (2) is of a disc-shaped structure, a through hole matched with the mandrel (1) is formed in the middle of the fixed ejector block along the axis direction, four ejector block inclined planes (22) are uniformly distributed on one side, close to the floating ejector block (4), of the fixed ejector block (2) along the circumferential direction, the ejector block inclined planes (22) are matched with the tensioning block inclined plane (31), a second connecting rod installation groove (23) is formed in the middle of each ejector block inclined plane (22), and second connecting rod fixing pin holes (21) are symmetrically formed in the middles of two sides of each second connecting rod installation groove (23);
the floating ejector block (4) is of a cylindrical structure, a through hole matched with the mandrel (1) is formed in the middle of the floating ejector block along the axis direction, four floating ejector block inclined planes (41) are uniformly distributed at the end part of the floating ejector block (4) along the circumferential direction, and the floating ejector block inclined planes (41) are matched with the tensioning block inclined plane (31);
connecting rod waist circular slot (91) and first connecting rod fixed pin hole (92) have been seted up respectively to the side both ends of connecting rod (9), first connecting rod fixed pin hole (92) are connected through connecting rod fixed pin (8) with second connecting rod fixed pin hole (21), connecting rod waist circular slot (91) are connected through tensioning piece fixed pin (10) with tensioning piece location pinhole (32).
2. The inward-expanding-fit type thin-walled cylinder clamping device according to claim 1, wherein: the mandrel positioning device is characterized in that a mandrel positioning boss (11) is arranged on the front section of the mandrel (1), external threads are arranged on the rear section of the mandrel (1), a mandrel thimble hole (12) is formed in the middle of the end face of the rear end of the mandrel, and the mandrel positioning boss (11) is abutted to the front end of the fixed ejector block (2).
3. The inward-expanding-fit type thin-walled cylinder clamping device according to claim 2, wherein: the rear section of the mandrel (1) is further sleeved with a gasket (6) and a nut (7) which are arranged in the front and at the back, the gasket (6) is abutted to the rear end of the movable ejector block (5), and the nut (7) is in threaded connection with the rear section of the mandrel (1).
4. The inward-expanding-fit type thin-walled cylinder clamping device according to claim 1, wherein: thin-wall roller parts (13) are arranged outside the eight tensioning blocks (3) in a matched manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921965338.5U CN210908169U (en) | 2019-11-14 | 2019-11-14 | Internal-expansion laminating type thin-wall roller clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921965338.5U CN210908169U (en) | 2019-11-14 | 2019-11-14 | Internal-expansion laminating type thin-wall roller clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210908169U true CN210908169U (en) | 2020-07-03 |
Family
ID=71355165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921965338.5U Active CN210908169U (en) | 2019-11-14 | 2019-11-14 | Internal-expansion laminating type thin-wall roller clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210908169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401305A (en) * | 2022-09-27 | 2022-11-29 | 陕西风润智能制造研究院有限公司 | Thin-wall cylinder welding assembly circle expansion device |
-
2019
- 2019-11-14 CN CN201921965338.5U patent/CN210908169U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401305A (en) * | 2022-09-27 | 2022-11-29 | 陕西风润智能制造研究院有限公司 | Thin-wall cylinder welding assembly circle expansion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110744086A (en) | Internal-expansion laminating type thin-wall roller clamping device | |
| CN108296986B (en) | Synchronizer ring gear inner ring processing composite clamp | |
| CN105965292B (en) | The swollen tire of quick locking reverse drawing of endoporus and end face positioning workpiece | |
| CN103786043A (en) | Internal expanding positioning and clamping device | |
| CN204603354U (en) | Thin-walled fixture for processing excircle of barrel-shaped parts | |
| CN204338920U (en) | The quick centralizer of a kind of three lobe wedge-type | |
| CN210908169U (en) | Internal-expansion laminating type thin-wall roller clamping device | |
| CN105436538A (en) | Milling inner profile expanding tool of thin-wall variable-wall-thickness cylinder | |
| CN203610707U (en) | Special fixture for turning excircle of thin-wall cylinder body | |
| RU187004U1 (en) | DEVICE FOR CENTERING AND ATTACHING THIN-WALLED CYLINDER PARTS | |
| CN209078346U (en) | Mandrel device is used in hollow shaft processing | |
| CN113059073A (en) | Inner centering mechanism for bending and forming flange large-diameter pipe fitting | |
| CN104043850A (en) | Floating clamp | |
| CN206185259U (en) | Dabber anchor clamps are used in processing | |
| CN110561270A (en) | Auxiliary tool for preventing inner hole honing deformation of large-diameter thin-wall part | |
| CN106736668A (en) | NC milling universal chuck | |
| CN211101965U (en) | Disc gear shaping clamp | |
| CN209095043U (en) | A kind of pitch circle fixture positioning tool | |
| CN105665768B (en) | A kind of frock of quick tensioner workpiece | |
| CN218775833U (en) | Blank cutting limit clamp | |
| CN204135772U (en) | Synchro converter ring tooth holder | |
| CN103465076A (en) | Four-point clamping fixture | |
| CN113547143B (en) | Thin-wall structural member clamping device | |
| CN109759858B (en) | Work fixture | |
| CN111421465B (en) | Special-shaped part clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |