CN210755190U - Lathe for machining crank arm - Google Patents
Lathe for machining crank arm Download PDFInfo
- Publication number
- CN210755190U CN210755190U CN201921481948.8U CN201921481948U CN210755190U CN 210755190 U CN210755190 U CN 210755190U CN 201921481948 U CN201921481948 U CN 201921481948U CN 210755190 U CN210755190 U CN 210755190U
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- Prior art keywords
- chuck
- hydraulic
- crank arm
- pull rod
- lathe
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- 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.)
- Expired - Fee Related
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- 238000003754 machining Methods 0.000 title claims description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims description 18
- 238000010276 construction Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000005484 gravity Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to a lathe for processing connecting lever. This a lathe for processing crank arm includes: a main spindle box; the transmission disc is rotatably assembled on the spindle box and is driven by a spindle of the spindle box; the chuck base is coaxially and fixedly assembled on the transmission disc; the hydraulic chuck is eccentrically and fixedly assembled on the chuck base and is used for clamping a crank arm to be processed; the hydraulic pull rod is coaxially arranged with the main shaft of the main shaft box and driven by a hydraulic cylinder to reciprocate along the axial direction; the pull rod crank arm is provided with a pull rod connecting part in transmission connection with the hydraulic pull rod and a chuck connecting part in transmission connection with the hydraulic chuck so as to drive the jaws on the hydraulic chuck to reciprocate along the radial direction of the hydraulic chuck when the hydraulic pull rod reciprocates along the axial direction of the hydraulic pull rod; the axis of the pull rod connecting part is parallel to the axis of the chuck connecting part, and the distance between the axes of the pull rod connecting part and the chuck connecting part is equal to the distance between the axes of the two shaft sections of the crank arm to be processed.
Description
Technical Field
The utility model relates to a lathe for processing connecting lever.
Background
The energy storage connecting lever on the spring operating mechanism is provided with two different shaft sections, and a tool is needed when the two shaft sections are processed. Specifically, an eccentric tool is manufactured and clamped on a chuck of a lathe, the crank arm is clamped manually by means of screws, screw rods and the like on the tool, the manual clamping has high dependence on the operation proficiency of workers, the clamping precision cannot be guaranteed, and the parallelism of the axes of two shafts of the crank arm cannot meet the requirement. And when batch production, the clamping efficiency of the crank arm is lower, the processing efficiency is also influenced, and the production requirement can not be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lathe for processing connecting lever to solve among the prior art adding man-hour to the connecting lever, the clamping efficiency of connecting lever is lower, can not satisfy the technical problem of production needs.
In order to achieve the above object, the utility model discloses a lathe for processing turning arm's technical scheme is:
a lathe for machining a crank arm, comprising: a main spindle box; the transmission disc is rotatably assembled on the spindle box and is driven by a spindle of the spindle box; the chuck base is coaxially and fixedly assembled on the transmission disc; the hydraulic chuck is eccentrically and fixedly assembled on the chuck base and is used for clamping a crank arm to be processed; the hydraulic pull rod is coaxially arranged with the main shaft of the main shaft box and driven by a hydraulic cylinder to reciprocate along the axial direction; the pull rod crank arm is provided with a pull rod connecting part in transmission connection with the hydraulic pull rod and a chuck connecting part in transmission connection with the hydraulic chuck so as to drive the jaws on the hydraulic chuck to reciprocate along the radial direction of the hydraulic chuck when the hydraulic pull rod reciprocates along the axial direction of the hydraulic pull rod; the axis of the pull rod connecting part is parallel to the axis of the chuck connecting part, and the distance between the axes of the pull rod connecting part and the chuck connecting part is equal to the distance between the axes of the two shaft sections of the crank arm to be processed.
The beneficial effects are that: the pull rod connecting lever is additionally arranged between the hydraulic pull rod and the hydraulic chuck, so that the pull rod connecting portion of the pull rod connecting lever is in transmission connection with the hydraulic pull rod, the chuck connecting portion of the pull rod connecting lever is in transmission connection with the chuck, and the hydraulic pull rod drives the clamping jaws on the hydraulic chuck to move in a reciprocating mode along the radial direction of the hydraulic chuck through the pull rod connecting lever. And, the axis of pull rod connecting portion is parallel with the axis of chuck connecting portion, distance between the axis of pull rod connecting portion, chuck connecting portion with the distance between the axis of two shaft sections of waiting to process the turning arm equals, makes hydraulic chuck when one of them shaft section of centre gripping waiting to process the turning arm, the central line of another shaft section and the coincidence of the central line of main shaft to in to processing the shaft section with the main shaft coincidence, improved the clamping efficiency of waiting to process the turning arm, can satisfy mass production.
Furthermore, the pull rod connecting part is in threaded connection with the hydraulic pull rod.
The beneficial effects are that: the hydraulic pull rod and the pull rod crank arm are convenient to disassemble and assemble.
Further, the chuck connecting part is in threaded connection with the hydraulic chuck.
The beneficial effects are that: the hydraulic chuck and the pull rod crank arm can be conveniently disassembled and assembled.
Further, the chuck connecting part is of a sleeve structure.
The beneficial effects are that: the cavity of the sleeve structure can avoid the shaft section clamped by the hydraulic chuck of the crank arm to be processed so as to adapt to the longer condition of the shaft section of the crank arm to be processed and improve the adaptability of the lathe.
Furthermore, the chuck base is provided with a positioning groove which is eccentrically arranged, and the hydraulic chuck is eccentrically and fixedly assembled in the positioning groove.
The beneficial effects are that: the chuck is eccentrically and fixedly assembled in the positioning groove, so that the positioning precision of the hydraulic chuck is ensured, and the installation efficiency of the hydraulic chuck is improved.
Furthermore, the constant head tank is square groove, the last setting element that has set firmly of hydraulic chuck, the setting element have with the square limit of direction groove adaptation.
The beneficial effects are that: the position of the chuck can be adjusted in the direction groove, and the distance between the axes of the pull rod connecting part and the chuck connecting part of different pull rod connecting levers or the pull rod connecting lever is changed to process the connecting lever to be processed with larger or smaller distance between the axes of the two shaft sections.
Furthermore, a balancing weight is fixedly arranged on the chuck base, and the balancing weight and the hydraulic chuck are oppositely arranged along the radial direction of the chuck base.
The beneficial effects are that: through setting up the balancing weight to the focus of balanced chuck base guarantees the stability of chuck base at the rotation in-process.
Furthermore, a counterweight column is fixedly arranged on the chuck base, and at least two counterweight column mounting positions are arranged on the chuck base, so that the counterweight column can be selectively and fixedly arranged on the chuck base.
The beneficial effects are that: the weight of the counterweight column is small, the position of the counterweight column on the chuck base is adjustable, and the center of gravity of the chuck base can be finely adjusted, so that the center of gravity of the chuck base is close to or coincident with the center line of the spindle, and the vibration of a lathe during turning is reduced.
Further, still be equipped with the side direction locating rack on the chuck base, treat processing turning arm side direction location in treating processing turning arm centre gripping in-process, and then make the axis of treating the processing shaft section of treating processing turning arm coincide with the axis of main shaft.
The beneficial effects are that: the lateral positioning frame is convenient for realizing the coincidence of the axis of the shaft to be processed and the axis of the main shaft, and further improves the processing efficiency and the processing precision.
Furthermore, a balancing weight is fixedly arranged on the chuck base, and the lateral positioning frame is fixedly arranged on the balancing weight.
The beneficial effects are that: fix the location frame of erroneous tendency on the balancing weight, be convenient for arrange of the location frame of erroneous tendency, also can reduce the size of the location frame of erroneous tendency simultaneously.
Drawings
Fig. 1 is an exploded view of a lathe for machining a crank arm according to the present invention;
FIG. 2 is a schematic structural view of the lever crank arm of FIG. 1;
FIG. 3 is a schematic view of the chuck base of FIG. 1;
FIG. 4 is a rear view of FIG. 3;
in the figure: 1-a hydraulic cylinder; 2-a main spindle box; 3-a transmission disc; 4-fastening a screw rod; 5-a hydraulic pull rod; 6-a pull rod crank arm; 7-a chuck base; 8-a positioning element; 9-a hydraulic chuck; 10-a jaw; 11-clamping the shaft section; 12-crank arm to be processed; 13-a shaft section to be processed; 14-a lateral positioning frame; 15-a counterweight block; 16-a counterweight column; 17-a positioning groove; 18-chuck connection; 19-a tie rod connection; 20-a balancing weight fixing hole; 21-counterweight column fixing holes; 22-perforation.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a concrete embodiment for a lathe for processing connecting lever:
as shown in fig. 1, a lathe for processing a crank arm includes a main spindle box 2, a main spindle is arranged in the main spindle box 2, a hydraulic cylinder 1 is arranged at the left end of the main spindle box 2, a transmission disc 3 is arranged at the right end of the main spindle box 2, and the transmission disc 3 is rotatably assembled on the main spindle box 2, coaxially arranged with the main spindle in the main spindle box 2 and driven by the main spindle; the hydraulic cylinder 1 is connected with a hydraulic pull rod 5 in a transmission mode, the hydraulic pull rod 5 is arranged coaxially with a main shaft in the main shaft box 2, and the hydraulic pull rod 5 is driven by the hydraulic cylinder 1 to move in a reciprocating mode along the axial direction of the hydraulic pull rod 5.
In this embodiment, the transmission disc 3 is fixedly provided with a chuck base 7 by a fastening screw 4, and the chuck base 7 is coaxially arranged with the transmission disc 3 to be driven to rotate by the transmission disc 3. One side of the chuck base 7, which faces away from the transmission disc 3, is provided with a positioning groove 17 which is eccentrically arranged, and the hydraulic chuck 9 is positioned and assembled in the positioning groove 17, so that the hydraulic chuck is eccentrically and fixedly assembled in the positioning groove 17. In this embodiment, the hydraulic chuck 9 is provided with three jaws 10, and the number of the jaws 10 may be four or more as needed. It should be noted that the size of the jaws 10 in the axial direction of the hydraulic chuck 9 is larger than that of a common jaw, and the clamping accuracy can be ensured to a certain extent. Of course, in other embodiments, the positioning groove may not be provided, and the hydraulic chuck is not easily installed in an aligned position.
As shown in fig. 1 and 3, the positioning groove 17 is a square groove, the positioning part 8 is fixedly arranged on the hydraulic chuck 9, the positioning part 8 comprises a positioning disc and a square edge arranged on the positioning disc, the positioning disc is matched with the left side of the hydraulic chuck, the square edge is matched with the positioning groove 17, and the hydraulic chuck 9 is positioned and assembled on the chuck base 7 through the positioning part 8 so as to ensure the positioning accuracy. In other embodiments, the positioning slot may be a circular slot, and in this case, the positioning member includes only a positioning disk, and the hydraulic chuck 9 is positioned and assembled on the chuck base 7 through the positioning disk.
In this embodiment, a pull rod crank arm 6 is disposed between the hydraulic pull rod 5 and the hydraulic chuck, and a through hole 22 is disposed on the chuck base 7 for the pull rod crank arm 6 to pass through. The pull rod crank arm 6 is provided with a pull rod connecting part 19 and a chuck connecting part 18, the pull rod crank arm 6 is in transmission connection with the hydraulic pull rod 5 through the pull rod connecting part 19, the pull rod crank arm 6 is in transmission connection with the hydraulic chuck 9 through the chuck connecting part 18, so that when the hydraulic pull rod 5 is driven by the hydraulic cylinder 1 to reciprocate along the axial direction of the hydraulic pull rod 5, the claw 10 on the hydraulic chuck 9 is driven to reciprocate along the radial direction of the hydraulic chuck 9 through the transmission power of the pull rod crank arm 6, and the hydraulic chuck 9 is further used for clamping the crank arm 12 to be processed and releasing the crank arm 12 to be processed. It should be noted that the driving connection relationship between the chuck connecting portion 18 and the hydraulic chuck 9 is the same as the connection relationship between the hydraulic pull rod and the hydraulic chuck in the prior art, and in this embodiment, only one pull rod crank arm 6 is added between the hydraulic pull rod 5 and the hydraulic chuck 9.
In this embodiment, the axis of pull rod connecting portion 19 and the axis of chuck connecting portion 18 are parallel, distance between the axis of pull rod connecting portion 19, chuck connecting portion 18 with wait to process the centre gripping spindle block 11 of turning arm 12 and wait to process the distance between the axis of spindle block 13 and equal, make hydraulic chuck 9 wait to process the centre gripping spindle block 11 of turning arm 12 in the centre gripping, wait to process the centre line coincidence of the centre line of spindle block 13 to treat to process spindle block 13 and process, improved the clamping efficiency of waiting to process turning arm 12, can satisfy mass production. It should be noted that the clamping shaft section 11 and the shaft section 13 to be machined form two shaft sections of the crank arm 12 to be machined.
As shown in fig. 1 and 2, the rod connecting portion 19 of the rod connecting lever 6 is screwed on the hydraulic rod 5, and the chuck connecting portion 18 of the rod connecting lever 6 is screwed on the hydraulic chuck 9, so as to realize the transmission connection among the hydraulic rod 5, the rod connecting lever 6 and the hydraulic chuck 9. Specifically, the pull rod connecting part 19 and the chuck connecting part 18 are both of a sleeve structure, the pull rod connecting part 19 is provided with internal threads, and the hydraulic pull rod 5 is provided with external threads so as to realize threaded connection between the pull rod connecting part 19 and the hydraulic pull rod 5; the chuck connecting part 18 has an external thread and the hydraulic chuck 9 has an internal thread to enable a threaded connection of the chuck connecting part 18 with the hydraulic chuck 9. In other embodiments, the pull rod connecting part and the chuck connecting part of the pull rod connecting lever are provided with clamping hooks, the hydraulic pull rod and the hydraulic chuck are provided with clamping grooves, and the pull rod connecting lever is connected with the hydraulic pull rod and the hydraulic chuck in a clamping mode. In other embodiments, the pull rod connecting part is provided with an external thread, and the hydraulic pull rod is provided with an internal thread so as to realize the threaded connection of the pull rod connecting part and the hydraulic pull rod; the chuck connecting part has an internal thread and the hydraulic chuck has an external thread to realize the threaded connection of the chuck connecting part and the hydraulic chuck. It should be noted that the chuck connecting part is of a sleeve structure, and a cavity of the sleeve structure can avoid the clamping shaft section of the crank arm to be machined so as to adapt to the condition that the clamping shaft section of the crank arm to be machined is longer and improve the adaptability of the lathe. Of course, in other embodiments, the chuck connecting portion may be designed to be a column structure.
As shown in fig. 1, 3 and 4, the chuck base 7 is provided with a counterweight fixing hole 20, the chuck base 7 is fixedly provided with a counterweight 15 through the counterweight fixing hole 20 and a fastener, and the counterweight 15 and the hydraulic chuck 9 are arranged along the radial direction of the chuck base 7 relatively to balance the gravity center of the chuck base 7 and ensure the stability of the chuck base 7 in the rotating process. In other embodiments, the counterweight block is not arranged, and one side of the chuck base, which is fixed with the hydraulic chuck, is hollowed out, so that the gravity center balance of the chuck base is realized.
In this embodiment, the chuck base 7 is further provided with a counterweight column fixing hole 21, the chuck base 7 is fixedly provided with a counterweight column 16 through the counterweight column fixing hole 21 and a fastener in a matching manner, the counterweight column fixing holes 21 are at least two, so that the counterweight column 16 can be selectively fixed on the chuck base 7, the counterweight column 16 is small in weight and adjustable in position on the chuck base 7, the center of gravity of the chuck base 7 can be finely adjusted, the center of gravity of the chuck base 7 is close to or coincident with the center line of the spindle, and the vibration of a lathe during turning is further reduced. It should be noted that the column fixing hole 21 constitutes a column mounting position. In other embodiments, the counterweight column may not be provided, and at this time, the machining precision of the counterweight is required to be higher, so as to ensure the stability of the chuck base in the rotating process.
In this embodiment, as shown in fig. 1, a lateral positioning frame 14 is fixedly arranged on the weight block 15 through a fastener, and the lateral positioning frame 14 laterally positions the crank arm 12 to be processed in the clamping process of the crank arm 12 to be processed, so that the axis of the shaft section 13 to be processed of the crank arm to be processed coincides with the axis of the spindle, thereby further improving the processing efficiency and the processing precision. It should be noted that the position of the lateral positioning frame 14 is adjusted in advance, and as long as the crank arm 12 to be machined abuts on the lateral positioning frame 14, after the clamping shaft section 11 of the crank arm 12 to be machined is clamped by the clamping jaws 10 of the hydraulic chuck 9, the center line of the shaft section 13 to be machined of the crank arm 12 to be machined coincides with the center line of the main spindle. In other embodiments, a lateral positioning frame may not be provided, and at this time, the shaft section to be processed needs to be aligned by means of infrared rays and the like; or the lateral positioning frame is directly fixedly assembled on the chuck base.
When the crank arm to be machined is clamped, the clamping shaft section 11 of the crank arm 12 to be machined is placed between the three clamping jaws 10 and is clamped in advance through the clamping jaws 10, then the crank arm 12 to be machined is enabled to abut against the lateral positioning frame 14 by rotating with the central line of the clamping shaft section 11 as a rotating center, and then the clamping shaft section 11 is clamped through the clamping jaws 10, so that the clamping process is completed. The subsequent processing is the same as the prior art. Because the distance between the axes of the pull rod connecting part 19 and the chuck connecting part 18 is equal to the distance between the axes of the clamping shaft section 11 of the crank arm 12 to be processed and the axes of the shaft section 13 to be processed, when the hydraulic chuck 9 clamps the clamping shaft section 11 of the crank arm 12 to be processed, the central line of the shaft section 13 to be processed is superposed with the central line of the main shaft, so that the shaft section 13 to be processed is processed, the clamping efficiency of the crank arm 12 to be processed is improved, and the requirement for mass production can be met. It should be noted that the crank arm to be machined in the present embodiment is an energy storage crank arm of a spring-operated mechanism. In other embodiments, the crank arm to be machined can be other crank arms with two parallel shaft sections.
Claims (10)
1. A lathe for processing a crank arm, comprising:
a main spindle box;
the transmission disc is rotatably assembled on the spindle box and is driven by a spindle of the spindle box;
the chuck base is coaxially and fixedly assembled on the transmission disc;
the hydraulic chuck is eccentrically and fixedly assembled on the chuck base and is used for clamping a crank arm to be processed;
the hydraulic pull rod is coaxially arranged with the main shaft of the main shaft box and driven by a hydraulic cylinder to reciprocate along the axial direction;
the pull rod crank arm is provided with a pull rod connecting part in transmission connection with the hydraulic pull rod and a chuck connecting part in transmission connection with the hydraulic chuck so as to drive the jaws on the hydraulic chuck to reciprocate along the radial direction of the hydraulic chuck when the hydraulic pull rod reciprocates along the axial direction of the hydraulic pull rod;
the axis of the pull rod connecting part is parallel to the axis of the chuck connecting part, and the distance between the axes of the pull rod connecting part and the chuck connecting part is equal to the distance between the axes of the two shaft sections of the crank arm to be processed.
2. The lathe for working a crank arm as set forth in claim 1, wherein the tie bar connecting portion is screwed on the hydraulic tie bar.
3. The lathe for machining crank arms as claimed in claim 1, wherein the chuck connecting portion is screwed on the hydraulic chuck.
4. A lathe for working a crank arm as set forth in claim 3 wherein the chuck attachment portion is of a sleeve construction.
5. A lathe for machining crank arms as claimed in any one of claims 1 to 4, wherein the chuck base is provided with an eccentrically arranged positioning groove in which the hydraulic chuck is eccentrically and fixedly fitted.
6. The turning lathe for processing the crank arm as claimed in claim 5, wherein the positioning slot is a square slot, and a positioning member is fixedly arranged on the hydraulic chuck, and the positioning member has a square edge matched with the square slot.
7. The lathe for processing a crank arm as set forth in any one of claims 1 to 4, wherein a weight is fixed to the chuck base, and the weight is disposed opposite to the hydraulic chuck in a radial direction of the chuck base.
8. The turning lathe for machining the crank arm as claimed in claim 7, wherein the chuck base is further fixedly provided with a counterweight column, and the chuck base is provided with at least two counterweight column mounting positions, so that the counterweight column is selectively and fixedly arranged on the chuck base.
9. The lathe for machining the crank arm as claimed in any one of claims 1 to 4, wherein the chuck base is further provided with a lateral positioning frame for laterally positioning the crank arm to be machined in the process of clamping the crank arm to be machined, so that the axis of the shaft to be machined of the crank arm to be machined coincides with the axis of the spindle.
10. The turning lathe for machining a crank arm as claimed in claim 9, wherein the chuck base has a weight block fixed thereto, and the lateral positioning frame is fixed to the weight block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481948.8U CN210755190U (en) | 2019-09-06 | 2019-09-06 | Lathe for machining crank arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481948.8U CN210755190U (en) | 2019-09-06 | 2019-09-06 | Lathe for machining crank arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210755190U true CN210755190U (en) | 2020-06-16 |
Family
ID=71050324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921481948.8U Expired - Fee Related CN210755190U (en) | 2019-09-06 | 2019-09-06 | Lathe for machining crank arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210755190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951730A (en) * | 2022-06-15 | 2022-08-30 | 广东鑫光智能系统有限公司 | Automatic eccentric part counterweight clamp, automatic oil pump body production line and machining process |
-
2019
- 2019-09-06 CN CN201921481948.8U patent/CN210755190U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951730A (en) * | 2022-06-15 | 2022-08-30 | 广东鑫光智能系统有限公司 | Automatic eccentric part counterweight clamp, automatic oil pump body production line and machining process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 |