CN216096462U - Three-jaw chuck positioning tool - Google Patents
Three-jaw chuck positioning tool Download PDFInfo
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- CN216096462U CN216096462U CN202122679291.XU CN202122679291U CN216096462U CN 216096462 U CN216096462 U CN 216096462U CN 202122679291 U CN202122679291 U CN 202122679291U CN 216096462 U CN216096462 U CN 216096462U
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- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of machining equipment, and discloses a three-jaw chuck positioning tool which comprises a chuck body, wherein three sliding grooves are formed in the chuck body, clamping jaws are connected in the sliding grooves in a sliding mode, rotating holes are formed in the side wall of the chuck body, adjusting bevel gears are arranged in the rotating holes and are rotatably connected with the chuck body, clamping blocks are arranged at one ends, close to the through holes, of the clamping jaws and are detachably connected with the clamping jaws, one surfaces, close to the clamping blocks, of the clamping jaws are arranged to be flat surfaces, one surfaces, close to the through holes, of the clamping blocks are arranged to be cambered surfaces, a wrench is inserted into the rotating holes, one end, far away from the rotating holes, of the wrench is connected with a force applying rod, and an adjusting mechanism used for adjusting the stretching of the force applying rod is arranged on the force applying rod. The three-jaw chuck positioning tool can clamp a workpiece with an arc surface and a workpiece with a plane, and is firm and reliable in clamping effect.
Description
Technical Field
The utility model relates to the technical field of machining equipment, in particular to a three-jaw chuck positioning tool.
Background
The three-jaw chuck is a machine tool accessory which clamps and positions a workpiece by utilizing the radial movement of three movable jaws uniformly distributed on a chuck body. The three-jaw chuck consists of a chuck body, movable jaws and a jaw driving mechanism. The lower surfaces of the guide parts of the three jaws on the three-jaw chuck are provided with threads which are meshed with the plane threads on the back surface of the disc-shaped bevel gear, when a spanner is used for rotating the bevel pinion through the square hole, the disc-shaped gear rotates, and the plane threads on the back surface simultaneously drive the three jaws to approach to the center or withdraw from the center so as to clamp workpieces with different diameters.
The clamping end face of the existing three-jaw chuck is generally a plane, when workpieces with arc surfaces, such as universal joints and hubs, are machined, the contact area between the clamping end face of the three-jaw chuck and the workpieces is small, so that the workpieces are clamped insecurely, and the workpieces are prone to shifting in the machining process, so that machining quality is affected. When making the jack catch press from both sides tightly or loosen the work piece through the spanner rotation, in order to make the staff realize the operation with less strength, can increase a atress pole on the spanner usually, nevertheless rotate the in-process of spanner in reality, the length of atress pole is wayward to be adjusted, the atress pole of overlength is at the rotation in-process and easily bumps the lathe lateral wall, leads to the spanner to be unable to rotate, and the atress pole is too short, needs the workman to rotate the spanner through great strength, has increased intensity of labour.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a three-jaw chuck positioning tool which can clamp a workpiece with an arc-shaped surface and a workpiece with a plane and has firm and reliable clamping effect.
The technical purpose of the utility model is realized by the following technical scheme that the three-jaw chuck positioning tool comprises a chuck body, a through hole is arranged at the center of the chuck body, three sliding grooves are uniformly distributed on the chuck body, clamping jaws are connected in the sliding grooves in a sliding manner, the side wall of the chuck body is provided with a rotating hole, an adjusting bevel gear is arranged in the rotating hole and is rotationally connected with the chuck body, a clamping block is arranged at one end of the clamping jaw close to the through hole and is detachably connected with the clamping jaw, one surface of the clamping jaw close to the clamping block is a plane, one surface of the clamping block close to the through hole is an arc surface, a wrench is inserted into the rotating hole, one end, far away from the rotating hole, of the wrench is connected with a force applying rod, and an adjusting mechanism used for adjusting the stretching of the force applying rod is arranged on the force applying rod.
The utility model is further provided with: the clamping block is provided with clamping grooves on the left side and the right side of one side close to the clamping jaw, clamping strips matched with the clamping grooves are arranged on one side close to the clamping block, and the clamping strips are inserted in the clamping grooves.
The utility model is further provided with: the cambered surface is a concave cambered surface or a convex cambered surface.
The utility model is further provided with: and rubber pads are arranged on the cambered surface and the plane.
The utility model is further provided with: the stress application rod comprises a sleeve and a movable rod, one end of the sleeve is vertically connected with the wrench, the other end of the sleeve is provided with an opening, the movable rod is inserted in the sleeve, the adjusting mechanism comprises a shifting rod and a positioning pin, the shifting rod is arranged on the outer wall of one end of the sleeve, which is far away from the wrench, the outer wall of the sleeve at the two sides of the deflector rod is provided with a fixed seat, the deflector rod is rotationally connected with the fixed seat through a rotating shaft, one end of the deflector rod extends out of the sleeve, the bottom end of the deflector rod is vertically and downwards provided with the positioning pin, the outer wall of the movable rod is provided with a plurality of positioning holes matched with the positioning pin, a spring is arranged at the bottom of the other end of the deflector rod, a containing groove is arranged on the outer wall of the sleeve below the spring, one end of the spring is fixedly connected with the bottom end of the deflector rod, and the other end of the spring is fixed in the accommodating groove.
The utility model has the beneficial effects that: according to the three-jaw chuck positioning tool, the clamping jaws and the clamping blocks which are detachably connected are arranged, so that workpieces in different shapes can be clamped, when the workpiece with the arc-shaped surface needs to be clamped, the clamping blocks are arranged on the clamping jaws, the workpiece is tightly clamped through the arc surfaces of the clamping blocks, the contact area between the workpiece and the clamping block can be increased, and the clamping effect is improved; when the end face of a workpiece needing to be clamped is a plane, the clamping block can be taken down, the workpiece is tightly clamped through the plane of the clamping jaw, and the clamping is stable and firm. Meanwhile, when the clamping force of the clamping jaw is adjusted through the rotation of the wrench, the length of the stressing rod can be flexibly adjusted according to actual requirements, so that a worker can rotate the wrench with small force, the wrench is prevented from touching a machine tool in the rotation process, and the smooth rotation of the wrench is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a three-jaw chuck positioning tool of the present invention;
FIG. 2 is a schematic view at A and partially enlarged in FIG. 1;
FIG. 3 is a schematic structural diagram of a first embodiment of a jaw and a fixture block of the three-jaw chuck positioning tool of the utility model;
FIG. 4 is a schematic structural view of a second embodiment of a clamping jaw and a clamping block of the three-jaw chuck positioning tool of the utility model;
fig. 5 is a schematic structural view of an adjusting mechanism of the three-jaw chuck positioning tool of the utility model.
In the figure, 1, a chuck body, 11, through holes, 12, sliding grooves, 13 and rotating holes; 2. a clamping jaw 21, a plane 22 and a clamping strip; 3. A clamping block 31, an arc surface 32 and a clamping groove; 4. a wrench; 5. a stress application rod 51, a sleeve 52 and a movable rod; 6. the adjusting mechanism 61, the shifting rod 62, the positioning pin 63, the fixing seat 64, the rotating shaft 65, the positioning hole 66, the spring 67 and the accommodating groove.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Referring to fig. 1, a three-jaw chuck location frock, including chuck body 1, through-hole 11 has been seted up at chuck body 1 center, evenly distributed has three spout 12 on the chuck body 1, sliding connection has jack catch 2 in the spout 12, chuck body 1 lateral wall is provided with rotation hole 13, be provided with regulation bevel gear in the rotation hole 13, it is connected with chuck body 1 rotation to adjust bevel gear, jack catch 2 is close to the one end of through-hole 11 and is provided with fixture block 3, fixture block 3 can be dismantled with jack catch 2 and be connected, the one side that jack catch 2 is close to fixture block 3 sets up to plane 21, the one side that fixture block 3 is close to through-hole 11 sets up to cambered surface 31, rotation hole 13 interpolation is equipped with spanner 4, spanner 4 keeps away from rotation hole 13 one end and is connected with application of force pole 5, be provided with on the application of force pole 5 and be used for adjusting the flexible adjustment mechanism 6 of application of force pole 5. It should be noted that, three chutes 12 are provided on the chuck body 1, the chutes 12 are arranged at intervals of 120 degrees, the chutes 12 are connected with the jaws 2 in a sliding manner, the chutes 12 are provided with the stoppers along the sliding direction of the jaws 2, the jaws 2 are provided with the limiting grooves matched with the stoppers, the chuck body 1 is internally provided with a flat screw coaxial with the chuck, the flat screw is connected with the jaws 2 by adopting a plane 21 thread structure, the flat screw is rotatably arranged in the chuck body 1, the back of the flat screw is fixedly provided with a large bevel gear, the chuck body 1 is rotatably provided with an adjusting bevel gear engaged with the large bevel gear, the adjusting bevel gear is radially arranged along the chuck body 1, the rotating hole 13 is square, the bottom of the wrench 4 is provided with a chuck matched with the rotating hole 13, when in use, the wrench 4 is inserted into the rotating hole 13, the wrench 4 is rotated to drive the adjusting bevel gear to rotate, thereby driving the large bevel gear to rotate, the plane 21 thread on the flat spiral disc enables the three clamping jaws 2 to simultaneously approach or withdraw towards the center, so that the clamping or loosening of the workpiece is realized. According to the three-jaw chuck positioning tool, the clamping jaws 2 and the clamping blocks 3 which are detachably connected are arranged, so that workpieces in different shapes can be clamped, when the workpiece with the arc-shaped surface needs to be clamped, the clamping blocks 3 are arranged on the clamping jaws 2, the workpiece is tightly clamped through the arc surfaces 31 of the clamping blocks 3, the contact area between the workpiece and the clamping area can be increased, and the clamping effect is improved; when the end face of the workpiece needing to be clamped is a plane, the clamping block 3 can be taken down, the workpiece is tightly clamped through the plane 21 of the clamping jaw 2, and the clamping is stable and firm. Meanwhile, when the wrench 4 is rotated to adjust the clamping force of the clamping jaw 2, the length of the stress application rod 5 can be flexibly adjusted according to actual requirements, so that a worker can rotate the wrench 4 with small force, the wrench 4 is prevented from touching a machine tool in the rotating process, and the wrench 4 is ensured to rotate smoothly.
Referring to fig. 3 and 4, the left side and the right side of one surface of the clamping block 3 close to the clamping jaw 2 are both provided with clamping grooves 32, one surface of the clamping jaw 2 close to the clamping block 3 is provided with clamping strips 22 matched with the clamping grooves 32, and the clamping strips 22 are inserted into the clamping grooves 32. The clamping strip 22 and the clamping groove 32 are arranged, the clamping jaw 2 and the clamping block 3 can be detachably connected, the structure is simple, the installation and the disassembly are convenient and fast, and the machining efficiency is improved. In the embodiment, the arc surface 31 is a concave arc surface, and can clamp a workpiece with an arc surface shape; in another embodiment, the arc surface 31 is a convex arc surface, which can clamp not only the workpiece with the arc surface shape, but also some special-shaped workpieces. Rubber pads are arranged on the arc surface 31 and the plane 21, friction force between the clamping block 3 and the workpiece, between the clamping jaw 2 and the workpiece or between the clamping block 3 and the clamping jaw 2 is increased due to the arrangement of the rubber pads, the clamping force of the chuck on the workpiece is further improved, the workpiece is prevented from sliding in a deviation mode in the machining process, and meanwhile the rubber pads can also play a certain protection role on the surface of the workpiece.
Referring to fig. 2 and 5, the forcing rod 5 includes a sleeve 51 and a movable rod 52, one end of the sleeve 51 is vertically connected with the wrench 4, the other end of the sleeve 51 is provided with an opening, the movable rod 52 is inserted in the sleeve 51, the adjusting mechanism 6 includes a shift lever 61 and a positioning pin 62, the shift lever 61 is arranged on the outer wall of the sleeve 51 far away from one end of the wrench 4, fixing seats 63 are arranged on the outer wall of the sleeve 51 on two sides of the shift lever 61, the shift lever 61 is rotatably connected with the fixing seats 63 through a rotating shaft 64, one end of the shift lever 61 extends out of the sleeve 51 and the bottom end of the sleeve 51 is vertically and downwardly provided with the positioning pin 62, a plurality of positioning holes 65 matched with the positioning pin 62 are arranged on the outer wall of the movable rod 52, a spring 66 is arranged at the bottom of the other end of the shift lever 61, a containing groove 67 is arranged on the outer wall of the sleeve 51 below the spring 66, one end of the spring 66 is fixedly connected with the bottom end of the shift lever 61, and the other end of the spring is fixed in the containing groove 67. When the length of the force applying rod 5 needs to be adjusted, one end of the shifting rod 61, which is close to the spring 66, is pressed downwards, the spring 66 is stressed and compressed, and the other end of the shifting rod 61 is lifted, so that the positioning pin 62 is separated from the positioning hole 65, at the moment, the movable rod 52 can be pulled outwards or pushed into the sleeve 51, the overall length of the force applying rod 5 is lengthened or shortened, after the proper length is adjusted, the pressing on the shifting rod 61 is released, under the elastic force action of the spring 66, one end of the positioning pin 62 moves downwards and is inserted into the positioning hole 65 on the movable rod 52, so that the sleeve 51 and the movable rod 52 are relatively fixed, the adjustment of the length of the force applying rod 5 can be completed, the operation is simple and flexible, and a worker can conveniently rotate the wrench 4.
Claims (5)
1. The utility model provides a three-jaw chuck location frock, includes chuck body (1), through-hole (11) have been seted up at chuck body (1) center, chuck body (1) goes up evenly distributed has three spout (12), sliding connection has jack catch (2) in spout (12), chuck body (1) lateral wall is provided with rotation hole (13), be provided with the regulation bevel gear in rotation hole (13), adjust bevel gear with chuck body (1) rotates to be connected its characterized in that: jack catch (2) are close to the one end of through-hole (11) is provided with fixture block (3), fixture block (3) with the connection can be dismantled in jack catch (2), jack catch (2) are close to the one side of fixture block (3) sets up to plane (21), fixture block (3) are close to the one side of through-hole (11) sets up to cambered surface (31), it is equipped with spanner (4) to rotate hole (13) interpolation, spanner (4) are kept away from rotate hole (13) one end and are connected with application of force pole (5), be provided with on application of force pole (5) and be used for adjusting application of force pole (5) flexible adjustment mechanism (6).
2. The three-jaw chuck positioning tool according to claim 1, characterized in that: the fixture block (3) is close to the left side and the right side of one side of the clamping jaw (2) are respectively provided with a clamping groove (32), the clamping jaw (2) is close to one side of the fixture block (3) and is provided with a clamping strip (22) matched with the clamping groove (32), and the clamping strip (22) is inserted into the clamping groove (32).
3. The three-jaw chuck positioning tool according to claim 1, characterized in that: the cambered surface (31) is a concave cambered surface or a convex cambered surface.
4. The three-jaw chuck positioning tool according to claim 1, characterized in that: rubber pads are arranged on the cambered surface (31) and the plane (21).
5. The three-jaw chuck positioning tool according to any one of claims 1 to 4, characterized in that: the stress application rod (5) comprises a sleeve (51) and a movable rod (52), one end of the sleeve (51) is vertically connected with the wrench (4), an opening is formed in the other end of the sleeve (51), the movable rod (52) is inserted into the sleeve (51), the adjusting mechanism (6) comprises a shifting rod (61) and a positioning pin (62), the shifting rod (61) is arranged on the outer wall of one end, far away from the wrench (4), of the sleeve (51), fixing seats (63) are arranged on the outer wall of the sleeve (51) on two sides of the shifting rod (61), the shifting rod (61) is rotatably connected with the fixing seats (63) through a rotating shaft (64), one end of the shifting rod (61) extends out of the sleeve (51), the positioning pin (62) is vertically arranged downwards at the bottom end of the shifting rod (61), a plurality of positioning holes (65) matched with the positioning pin (62) are formed in the outer wall of the movable rod (52), a spring (66) is arranged at the bottom of the other end of the shifting lever (61), an accommodating groove (67) is formed in the outer wall of the sleeve (51) below the spring (66), one end of the spring (66) is fixedly connected with the bottom end of the shifting lever (61), and the other end of the spring is fixed in the accommodating groove (67).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122679291.XU CN216096462U (en) | 2021-11-01 | 2021-11-01 | Three-jaw chuck positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122679291.XU CN216096462U (en) | 2021-11-01 | 2021-11-01 | Three-jaw chuck positioning tool |
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| Publication Number | Publication Date |
|---|---|
| CN216096462U true CN216096462U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122679291.XU Active CN216096462U (en) | 2021-11-01 | 2021-11-01 | Three-jaw chuck positioning tool |
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| CN (1) | CN216096462U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115255420A (en) * | 2022-09-19 | 2022-11-01 | 泊头市亚奇铸业有限公司 | High-efficient processingequipment of hydraulic motor work piece |
| CN116572897A (en) * | 2023-06-19 | 2023-08-11 | 浙江宏博汽配有限公司 | A car wiper linkage |
| CN116729988A (en) * | 2023-05-08 | 2023-09-12 | 浙江步阳汽轮有限公司 | Intelligent conveying line for high-strength hubs and processing technology thereof |
| WO2024082867A1 (en) * | 2022-10-21 | 2024-04-25 | 西安鑫垚陶瓷复合材料股份有限公司 | Fixture for assembly and correction of blade ribs of satellite lens barrel and assembly method |
-
2021
- 2021-11-01 CN CN202122679291.XU patent/CN216096462U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115255420A (en) * | 2022-09-19 | 2022-11-01 | 泊头市亚奇铸业有限公司 | High-efficient processingequipment of hydraulic motor work piece |
| CN115255420B (en) * | 2022-09-19 | 2023-01-31 | 泊头市亚奇铸业有限公司 | High-efficient processingequipment of hydraulic motor work piece |
| WO2024082867A1 (en) * | 2022-10-21 | 2024-04-25 | 西安鑫垚陶瓷复合材料股份有限公司 | Fixture for assembly and correction of blade ribs of satellite lens barrel and assembly method |
| CN116729988A (en) * | 2023-05-08 | 2023-09-12 | 浙江步阳汽轮有限公司 | Intelligent conveying line for high-strength hubs and processing technology thereof |
| CN116729988B (en) * | 2023-05-08 | 2024-01-26 | 浙江步阳汽轮有限公司 | Intelligent conveying line for high-strength hubs and processing technology thereof |
| CN116572897A (en) * | 2023-06-19 | 2023-08-11 | 浙江宏博汽配有限公司 | A car wiper linkage |
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