CN212019434U - Pneumatic chuck for machining sucker rod - Google Patents
Pneumatic chuck for machining sucker rod Download PDFInfo
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- CN212019434U CN212019434U CN202020598893.5U CN202020598893U CN212019434U CN 212019434 U CN212019434 U CN 212019434U CN 202020598893 U CN202020598893 U CN 202020598893U CN 212019434 U CN212019434 U CN 212019434U
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- chuck
- sucker rod
- distribution plate
- inclined plane
- slide
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Abstract
The utility model relates to a pneumatic chuck for sucker rod processing, including the headstock, the headstock front end is equipped with preceding distribution plate, and the headstock rear end is equipped with back distribution plate, and preceding distribution plate outside is equipped with preceding chuck, and the back distribution plate outside is equipped with the back chuck, all is equipped with transmission structure between preceding distribution plate and the preceding chuck and between back distribution plate and the back chuck, sliding connection has preceding jack catch on the preceding chuck, and sliding connection has back jack catch on the back chuck, and preceding jack catch is planar structure with the contact surface of sucker rod, planar structure is used for the spanner part of centre gripping sucker rod, and the contact surface of back jack catch and sucker rod is cambered surface structure for the round bar part of centre gripping sucker rod. The utility model has the advantages of effectively reducing the vibration of the sucker rod, reducing the vibration lines and improving the processing precision when the sucker rod is processed and rotated; meanwhile, compressed gas is used as a power source, so that hydraulic station equipment can be omitted, the use cost is reduced, and the pollution to the environment is reduced.
Description
Technical Field
The utility model belongs to the technical field of pneumatic chuck's technique and specifically relates to a pneumatic chuck for sucker rod processing is related to.
Background
The sucker rod is a slender rod piece of the pumping well, and is connected with a polished rod at the upper part and an oil well pump at the lower part to play a role in transmitting power. The length of a single sucker rod is 7.62 meters or 8 meters or 9.14 meters.
At present, the internal sucker rod processing machine tool mainly has three kinds of chuck clamping work pieces: one is a manual chuck adopting a plane thread transmission type, the clamping precision is difficult to ensure, and the efficiency is low; the other type is that a lever type chuck is adopted, a plane thrust bearing is additionally arranged at the rear of an air cylinder to drive a pull tube, so that the bearing is stressed greatly and is easy to damage, and the precision retentivity of the lever type chuck is low. The last one adopts the special hydraulic chuck of sucker rod, and the clamping part is for forging the blank face, and the jump when the sucker rod rotates can transmit the hydraulic chuck of front end, causes the machining precision to reduce.
In industrial production, when using chuck centre gripping sucker rod to add man-hour, need often rotate the sucker rod to process the face of difference, because the length of sucker rod is longer, when the sucker rod rotates, very easy production vibration, the beat of its rear end causes the machined surface to produce the line of shaking easily when transmitting for the front end, causes the machining precision to reduce.
SUMMERY OF THE UTILITY MODEL
To above-mentioned technique exist the sucker rod very easily when rotating and produce the vibration, cause the not enough that machining precision is low, the utility model aims at providing a pneumatic chuck for sucker rod processing has and to have and to rotate at the sucker rod processing, and the vibration of effectual reduction sucker rod reduces the line of shaking that the sucker rod surface produced, improves machining precision's effect.
The utility model discloses an above-mentioned one of the utility model purpose can realize through following technical scheme:
the utility model provides a pneumatic chuck for sucker rod processing, includes the headstock, and the headstock front end is equipped with preceding distribution plate, and the headstock rear end is equipped with back distribution plate, and preceding distribution plate outside is equipped with preceding chuck, and the back distribution plate outside is equipped with the back chuck, all is equipped with transmission structure between preceding distribution plate and the preceding chuck and between back distribution plate and the back chuck, and sliding connection has preceding jack catch on the preceding chuck, and sliding connection has back jack catch on the back chuck, and the contact surface of preceding jack catch and sucker rod is planar structure, planar structure is used for the spanner part of centre gripping sucker rod, and the contact surface of back jack catch and sucker rod is cambered surface structure for the round bar part of centre gripping sucker rod.
By adopting the technical scheme, the sucker rod passes through the spindle box, the two ends of the sucker rod are respectively clamped by the front chuck and the rear chuck, the rear end of the sucker rod can be effectively fixed by adding the rear chuck, and the rotating vibration of the sucker rod is reduced; the clamping contact surface of the front clamping jaw and the sucker rod is a plane, the clamping contact surface of the rear clamping jaw and the sucker rod is an arc surface, and through the design of different planes, the shape of a part to be clamped can be better adapted during clamping, the clamping is more stable and fastened, and the vibration of the sucker rod during processing is reduced; the air distribution plate is used as a power source, so that a hydraulic station can be omitted, the use cost is reduced, and the pollution to the environment is reduced.
The present invention may be further configured in a preferred embodiment as: the transmission structure includes heart of wedge cover and slide, and the heart of wedge cover all installs on the chuck and the slide is located the outside of heart of wedge cover with the slide, and the heart of wedge cover is located the chuck inside and with axle center sliding connection, the spout has been seted up to the chuck lateral surface, slide sliding connection in the spout and the slide lateral surface pass through bolted connection with the jack catch, air distribution plate internally mounted has the piston, the top of piston and the heart of wedge cover keep away from the one end fixed connection of slide, through inclined plane structure sliding connection between the other end of heart of wedge cover and the slide.
By adopting the technical scheme, compressed air enters the inner cavity of the disc body through the air distribution disc, so that the piston is pushed to move, the wedge sleeve is pulled through the piston, the sliding seat and the clamping jaw are driven to synchronously move to clamp a workpiece, the compressed air is used as power for driving, a hydraulic station is omitted, the production cost is reduced, the pollution to the environment is reduced, and the economic benefit is better.
The present invention may be further configured in a preferred embodiment as: all be equipped with the inclined plane structure on the contact surface of key sleeve and slide, the inclined plane structure is including removing the inclined plane and pressing from both sides tight inclined plane, and the tight inclined plane of clamp on the key sleeve is located and removes the inclined plane top, and the tight inclined plane of clamp on the slide is located and removes the below on inclined plane, realizes the sliding connection between key sleeve and the slide through the conflict each other between corresponding inclined plane.
Through adopting above-mentioned technical scheme, through piston pulling die core sleeve lateral shifting, because two removal inclined planes are contradicted each other to drive the slide along spout radial movement, the die core sleeve continues to move, thereby makes two press from both sides tight inclined plane and contradicts each other, continues to drive slide and jack catch along spout radial movement, realizes the clamping action.
The present invention may be further configured in a preferred embodiment as: the included angle between the movable inclined plane and the central axis of the chuck is 40-50 degrees, and the included angle between the clamping inclined plane and the central line made by the chuck is 10-15 degrees.
By adopting the technical scheme, the large-angle moving inclined plane can realize the quick movement of the clamping jaw, the smooth feeding and discharging of the workpiece is ensured, and the small-angle clamping inclined plane is used for accurately positioning the workpiece, so that the clamping reliability is ensured.
The present invention may be further configured in a preferred embodiment as: the front clamping jaw is of a four-jaw structure, and the rear clamping jaw is of a three-jaw structure.
By adopting the technical scheme, the four claws of the front claw correspond to the four side surfaces of the wrench part of the sucker rod, and the four claws are clamped in a one-to-one correspondence manner during clamping, so that the clamping is more stable; the three claws of the rear claw correspond to the circumferential side surface of the circular rod part of the sucker rod, so that the stability during clamping can be further improved.
The present invention may be further configured in a preferred embodiment as: a gas distribution plate support is arranged between the front gas distribution plate and the main shaft box, two ends of the gas distribution plate support are fixedly connected with the front gas distribution plate and the main shaft box respectively, a gas distribution plate is arranged between the rear gas distribution plate and the main shaft box, and two ends of the gas distribution plate support are fixedly connected with the rear gas distribution plate and the main shaft box respectively.
By adopting the technical scheme, the stability of the gas distribution plate during processing is ensured by supporting and protecting the gas distribution plate through the gas distribution plate bracket.
The present invention may be further configured in a preferred embodiment as: and a sealing ring is arranged at the joint of the piston and the wedge core sleeve.
Through adopting above-mentioned technical scheme, through the further leakproofness that improves between piston and the wedge core cover of sealing ring, prevent that the air that the compression got into the disk body from taking place to reveal, influencing the tight effect of clamp, causing the machining precision to reduce.
The present invention may be further configured in a preferred embodiment as: and the chuck is provided with a pressure retaining valve.
By adopting the technical scheme, the air pressure compressed into the chuck body is higher, and the chuck can be safer and more reliable in the using process through the design of the pressure retaining valve; meanwhile, a certain pressure can be kept in the disc body, and energy is saved.
To sum up, the utility model discloses a following at least one useful technological effect:
1. in the application, the air distribution discs are arranged at two ends of the spindle box, the chucks are correspondingly arranged at the outer sides of the two air distribution discs, and the chucks on the front side and the rear side of the spindle box are used for clamping from two ends of the sucker rod, so that clamping is more reliable, vibration of the rear end of the sucker rod is reduced when the sucker rod rotates, vibration lines during machining are reduced, and machining precision is improved;
2. in the application, the grabbing part of the front clamping jaw is of a plane structure and is used for clamping the wrench part of the sucker rod, the grabbing part of the rear clamping jaw is of an arc-surface structure and is used for clamping the round rod part of the sucker rod, and the grabbing part and the arc-surface contact clamping are mutually matched through plane contact clamping and arc-surface contact clamping, so that the grabbing part can be matched with the shape of the clamping part of the sucker rod, and the clamping is more precise and firm;
3. in the application, the wedge core sleeve is in transmission with the inclined surface of the sliding seat, the inclined surface is a double-inclined-surface structure of a moving inclined surface and a clamping inclined surface, the clamping jaw can move quickly by utilizing the self gravity of the clamping jaw, and the work efficiency of loading and unloading of blank pieces is improved; meanwhile, the precise positioning of the blank piece can be realized by limiting the angle between the movable inclined plane and the clamping inclined plane, the clamping degree of the blank piece is effectively improved, and the blank piece is firm and stable
4. In the application, the air distribution disc is adopted, compressed air is used as a power source, hydraulic station equipment can be omitted, hydraulic energy is replaced by air, the use cost is effectively reduced, and the pollution to the environment is reduced; meanwhile, the pressure retaining valve is arranged on the chuck, so that the internal pressure of the chuck can be maintained to be stable, and the use safety of equipment is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
5. FIG. 2 is a schematic cross-sectional view of a highlighted chuck configuration;
FIG. 3 is a schematic view of the structure of the carriage;
FIG. 4 is a schematic diagram of the construction of the wedge sleeve;
FIG. 5 is a schematic view of the external shape of the sucker rod;
FIG. 6 is a schematic view highlighting the front jaw clamping pattern;
FIG. 7 is a schematic view highlighting the manner in which the jaws clamp.
In the figure, 1, a main spindle box; 2. a front gas distribution plate; 3. a rear gas distribution plate; 4. a front chuck; 5. a rear chuck; 6. a front claw; 7. a rear claw; 8. a piston; 9. a wedge core sleeve; 10. a slide base; 13. A gas distribution plate support; 14; a seal ring; 15. a pressure retaining valve; 16. a sucker rod; 17. t-shaped bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a pneumatic chuck for machining a sucker rod comprises a main spindle box 1, a gas distribution disc support 13 is respectively installed at the front end and the rear end of the main spindle box 1, a front gas distribution disc 2 is welded on the gas distribution disc support 13 positioned at the front end of the main spindle box 1, a rear gas distribution disc 3 is welded on the gas distribution disc support 13 positioned at the rear end of the main spindle box 1, a front chuck 4 is installed at the outer side of the front gas distribution disc 2, a front clamping jaw 6 is slidably connected on the front chuck 4, a rear clamping jaw 5 is installed at the outer side of the rear gas distribution disc 3, a rear clamping jaw 7 is slidably connected on the rear clamping jaw 5, a transmission structure is respectively arranged between the front gas distribution disc 2 and the front chuck 4 and between the rear gas distribution disc 3 and the rear clamping jaw 5, the front gas distribution disc 2 drives the front clamping jaw 6 to radially move to clamp the front end of the sucker rod 16 through the transmission structure, in detail, the fig. 5, the rear gas distribution disc 3 drives, the sucker rod 16 is clamped from the two ends of the sucker rod through the front chuck and the rear chuck, so that the vibration generated when the sucker rod 16 rotates can be effectively reduced, vibration lines generated on the surface of the sucker rod 16 are reduced, and the processing precision is improved.
The transmission structure comprises a wedge sleeve 9 and a slide seat 10, and is shown in detail in fig. 3 and 4, the wedge sleeve 9 and the slide seat 10 are both installed inside a chuck, the wedge sleeve 10 is in coaxial sliding connection with the chuck, a sliding groove is formed in the outer side surface of the chuck, the slide seat 10 is in sliding connection with the sliding groove, the outer side surface of the slide seat 10 is connected with a clamping jaw through a T-shaped bolt, a piston 8 is fixedly arranged inside an air distribution disc, the top of the piston 8 is fixedly connected with one end, far away from the slide seat 10, of the wedge sleeve 9, the other end of the wedge sleeve 9 is in sliding connection with the slide seat 10 through an inclined plane structure, compressed air enters an inner cavity of the chuck through an air distribution disc, the piston 8 is pushed to move so as to drive the wedge sleeve 9 to move, and the wedge.
The inclined plane structure includes removing the inclined plane and pressing from both sides tight inclined plane, all have on heart cover and the slide and remove the inclined plane with pressing from both sides tight inclined plane, the central axis contained angle that removes the inclined plane and chuck is between 40 to 50, the central line contained angle that presss from both sides tight inclined plane and chuck is done is between 10 to 15, the tight inclined plane of clamp on the heart cover is located the removal inclined plane top on the heart cover, the tight inclined plane of clamp on the slide is located the below of the removal inclined plane on the slide, sliding connection between heart cover and the slide is realized through contradicting each other between the corresponding inclined plane, it is used for realizing the quick travel of jack catch to remove the inclined plane, guarantee that the work piece goes up and down smoothly, it is used for.
Referring to fig. 5 and 6, the front jaw 6 is of a four-jaw structure and is used for clamping a wrench part of the sucker rod 16, the contact clamping surface of the front jaw 6 and the sucker rod 16 is a plane, the wrench part of the sucker rod 16 is of a rectangular structure, and when the front jaw 6 and the wrench part of the sucker rod 16 are clamped, the four front jaws 6 and four side surfaces of the wrench part of the sucker rod 16 are clamped in a one-to-one correspondence manner, so that the clamping is more compact and stable.
Referring to fig. 5 and 7, the rear jaws 7 have a three-jaw structure and are used for clamping a round rod part of a sucker rod 16, the contact clamping surfaces of the rear jaws 7 and the sucker rod 16 are cambered surfaces, and during clamping, the three rear jaws 7 and the circumferential side surface of the round rod part of the sucker rod 16 correspondingly clamp, so that when the sucker rod 16 rotates, the vibration of the long round rod part of the sucker rod 16 is prevented from transmitting the front end of the sucker rod, the vibration lines are reduced, and the machining precision is improved.
Referring to fig. 6 and 7, pressure retaining valves 15 are fixedly mounted on the outer side surfaces of the front chuck 4 and the rear chuck 5, the pressure retaining valves 15 are communicated with the inside and the outside of the chucks, the pressure inside the chucks is maintained to be stable through the pressure retaining valves 15, and the device is safer and more reliable during use.
The implementation principle of the embodiment is as follows: during processing, the sucker rod 16 is installed on a machine tool, compressed air enters the inner cavity of the disc body through the air distribution disc 13 to push the piston 8, so that the wedge core sleeve 9 is pulled, the sliding seat 10 is driven to move through the matching of the double inclined planes, and finally the radial quick movement and the clamping action of the clamping jaw are realized. Can follow sucker rod 16 both ends and carry out the centre gripping, alleviate sucker rod 16 vibration when rotating, great improvement the machining precision.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a pneumatic chuck for sucker rod processing, includes headstock, its characterized in that: the front end of the main shaft box is provided with a front air distribution disc, the rear end of the main shaft box is provided with a rear air distribution disc, the outer side of the front air distribution disc is provided with a front chuck, the outer side of the rear air distribution disc is provided with a rear chuck, transmission structures are arranged between the front air distribution disc and the front chuck and between the rear air distribution disc and the rear chuck, the front chuck is connected with a front clamping jaw in a sliding manner, the rear chuck is connected with a rear clamping jaw in a sliding manner, the contact surface of the front clamping jaw and the sucker rod is of a plane structure, the plane structure is used for clamping a wrench part of the sucker rod, and the contact surface of the rear clamping jaw and.
2. The pneumatic chuck for machining the sucker rod of claim 1, wherein: the transmission structure includes heart of wedge cover and slide, and the heart of wedge cover all installs on the chuck and the slide is located the outside of heart of wedge cover with the slide, and the heart of wedge cover is located the chuck inside and with axle center sliding connection, the spout has been seted up to the chuck lateral surface, slide sliding connection in the spout and the slide lateral surface pass through bolted connection with the jack catch, air distribution plate internally mounted has the piston, the top of piston and the heart of wedge cover keep away from the one end fixed connection of slide, through inclined plane structure sliding connection between the other end of heart of wedge cover and the slide.
3. The pneumatic chuck for machining the sucker rod of claim 2, wherein: all be equipped with the inclined plane structure on the contact surface of key sleeve and slide, the inclined plane structure is including removing the inclined plane and pressing from both sides tight inclined plane, and the tight inclined plane of clamp on the key sleeve is located and removes the inclined plane top, and the tight inclined plane of clamp on the slide is located and removes the below on inclined plane, realizes the sliding connection between key sleeve and the slide through the conflict each other between corresponding inclined plane.
4. The pneumatic chuck for machining the sucker rod of claim 3, wherein: the included angle between the movable inclined plane and the central axis of the chuck is 40-50 degrees, and the included angle between the clamping inclined plane and the central line made by the chuck is 10-15 degrees.
5. The pneumatic chuck for machining the sucker rod of claim 1, wherein: the front clamping jaw is of a four-jaw structure, and the rear clamping jaw is of a three-jaw structure.
6. The pneumatic chuck for machining the sucker rod of claim 1, wherein: a gas distribution plate support is arranged between the front gas distribution plate and the main shaft box, two ends of the gas distribution plate support are fixedly connected with the front gas distribution plate and the main shaft box respectively, a gas distribution plate is arranged between the rear gas distribution plate and the main shaft box, and two ends of the gas distribution plate support are fixedly connected with the rear gas distribution plate and the main shaft box respectively.
7. The pneumatic chuck for machining the sucker rod of claim 2, wherein: and a sealing ring is arranged at the joint of the piston and the wedge core sleeve.
8. The pneumatic chuck for machining the sucker rod of claim 1, wherein: and the front chuck and the rear chuck are respectively provided with a pressure retaining valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598893.5U CN212019434U (en) | 2020-04-21 | 2020-04-21 | Pneumatic chuck for machining sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598893.5U CN212019434U (en) | 2020-04-21 | 2020-04-21 | Pneumatic chuck for machining sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212019434U true CN212019434U (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020598893.5U Active CN212019434U (en) | 2020-04-21 | 2020-04-21 | Pneumatic chuck for machining sucker rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN212019434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112405349A (en) * | 2020-11-30 | 2021-02-26 | 北京第二机床厂有限公司 | Automatic fixture of rotary cylinder front-mounted grinding machine |
| CN113385752A (en) * | 2021-07-08 | 2021-09-14 | 山西风源机械制造有限公司 | Positioning and clamping device suitable for single-head screw pump rotor machining |
-
2020
- 2020-04-21 CN CN202020598893.5U patent/CN212019434U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112405349A (en) * | 2020-11-30 | 2021-02-26 | 北京第二机床厂有限公司 | Automatic fixture of rotary cylinder front-mounted grinding machine |
| CN113385752A (en) * | 2021-07-08 | 2021-09-14 | 山西风源机械制造有限公司 | Positioning and clamping device suitable for single-head screw pump rotor machining |
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