CN108031879B - 24-point floating vertical lathe clamp for automobile brake hub - Google Patents
24-point floating vertical lathe clamp for automobile brake hub Download PDFInfo
- Publication number
- CN108031879B CN108031879B CN201711401997.1A CN201711401997A CN108031879B CN 108031879 B CN108031879 B CN 108031879B CN 201711401997 A CN201711401997 A CN 201711401997A CN 108031879 B CN108031879 B CN 108031879B
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- floating
- pressing plate
- holes
- swing
- swinging
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- 238000003825 pressing Methods 0.000 claims abstract description 115
- 238000000034 method Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract 1
- 210000000078 claw Anatomy 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000010727 head pressing Diseases 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The 24-point floating vertical lathe clamp for the automobile brake hub solves the problems that in the prior art, clamping points are few, clamping positioning is unstable, machining precision is low, the automobile brake hub is easy to deform and machining efficiency is affected, and is characterized in that 3 floating clamping jaws are arranged on a three-jaw chuck, 1 positioning block is arranged in the middle of each 2 floating clamping jaws, a swinging pressing plate is arranged on a clamping jaw body, a floating block is arranged on the swinging pressing plate, swinging pressing blocks are arranged on the upper end face and the lower end face of the floating block, tooth-shaped pressing heads are arranged on the swinging pressing blocks, the 3 floating clamping jaws form an upper layer and a lower layer in the circumferential direction, each layer is 12 in clamping points, and a clamping mechanism with 24 clamping points is used for ensuring that each tooth-shaped pressing head can be tightly contacted with the outer circle of a machined automobile brake hub blank, so that the 24-point floating pressing is realized, the clamping is uniform and firm, the machining precision is ensured, the structure is a mechanical mechanism, the maintenance is simple and convenient, and the cost is low.
Description
Technical Field
The invention belongs to the technical field of machining and manufacturing of mechanical parts, and particularly relates to a 24-point floating vertical lathe clamp for an automobile brake hub.
Background
In the existing automobile brake hub production and processing, as the clamping jaw of a lathe chuck for processing the automobile brake hub is not high enough, the clamping jaw on the lathe chuck is replaced by a structure with a heightened clamping jaw, so that the height of the clamping jaw is increased, two problems still exist in the processing process, namely, the clamping points are too few and are only 3 points in the processing process, so that the clamping and positioning are unstable, the automobile brake hub is easy to deform, the processing process is the first working procedure for processing the automobile brake hub, the automobile brake hub is in a blank state, the heightened clamping jaw of the lathe chuck cannot be completely attached and clamped with the outer wall of the automobile brake hub blank, and the processing precision is guaranteed, so that the processing qualification rate of the existing automobile brake hub is lower, and the processing efficiency is influenced by the need of new adjustment under the conditions of non-clamping and non-correct clamping.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects and the shortcomings of the prior art and providing the 24-point floating vertical lathe clamp for the automobile brake hub, which can realize multi-point compaction and can be completely attached to the outer wall of the automobile brake hub blank, thereby ensuring the improvement of the machining precision and improving the machining efficiency.
The technical scheme includes that the three-jaw chuck comprises 3 floating jaws uniformly arranged on the three-jaw chuck, 1 positioning block is arranged in the middle of each 2 floating jaws, each floating jaw comprises a jaw body, a jaw body stepped hole is formed in the jaw body, fine holes of the jaw body stepped holes are threaded holes, a swing pressing plate is arranged on the upper end face of the jaw body, a trapezoid body is arranged in the middle of the swing pressing plate, rectangular bodies are arranged on the two sides of the swing pressing plate, a through hole is formed in the upper end face of the trapezoid body in the middle of the swing pressing plate, a first shaft pin is arranged in the through hole and the jaw body stepped hole, swing pressing plate stepped holes are respectively formed in the left side and the right side of the swing pressing plate, a floating block is respectively arranged in the left side face and the right side face of the swing pressing plate, through holes are respectively formed in the floating block, second shaft pins are arranged in the swing pressing plate stepped holes on the left side and the right side of the through hole, a swing pressing plate stepped block is respectively arranged on the upper end face and the lower end face of the floating block, the upper end face of the floating block is symmetrically provided with a trapezoid body, a first shaft pin is arranged in the upper end face and the lower end face of the floating block stepped hole, the upper end face of the floating block 2 is symmetrically arranged on the side of the floating block stepped block, the stepped block is provided with the threaded holes are respectively arranged on the upper end face of the pressing block and the lower end face of the floating block, the stepped block is provided with the threaded hole, the threaded hole is arranged in the threaded hole, the threaded hole is formed by the threaded pressing block and the threaded head pressing block 2 is arranged in the threaded hole and is in the threaded hole through the threaded hole and is connected with the threaded head through the threaded head.
The swinging pressing blocks are T-shaped, the middle of the cross arm of the T shape is a trapezoid, two sides of the cross arm are rectangular, and the swinging pressing blocks on the two sides are combined with the swinging pressing plates with the middle of the swinging pressing blocks being the trapezoid and the two sides being rectangular to form a curved surface similar to an arc.
The lower end face of the swinging pressing plate and the upper end face of the jaw body are provided with first sliding gaps, and the swinging pressing plate can float left and right on the jaw body around the first shaft pin.
A second sliding fit gap is arranged between the floating block and the swinging pressing plate, and the floating block can float back and forth around the second shaft pin on the side surface of the swinging pressing plate.
A third sliding fit gap is arranged between the floating block and the swing pressing block, and the swing pressing block can float left and right on the floating block around a third shaft pin.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention is based on a standard three-jaw chuck, and takes a positioning block as an up-down positioning reference, namely, 3 floating jaws are arranged on a lathe chuck, each floating jaw is provided with 8 clamping points, the middle of the swinging pressing plate is a trapezoid body, two sides of the swinging pressing plate are rectangular bodies, the swinging pressing block is T-shaped, the middle of the T-shaped cross arm is a trapezoid body, two sides of the T-shaped cross arm are rectangular bodies, the swinging pressing blocks on the two sides are combined with the middle swinging pressing plate to form a curved surface similar to an arc, the 3 floating jaws form an up-down 2 layer in the circumferential direction, each layer of 12 clamping points are provided with a clamping mechanism with 24 clamping points, clamping deformation can be reduced to the minimum while workpiece blanks are better clamped, the machining precision is ensured, and the problems of unstable clamping and workpiece deformation in the traditional machining are solved;
(2) The floating claw body and the lathe chuck are positioned by using a key slot and a tooth type, and are fixed by using a screw, when the lathe chuck is in operation, the swing pressing plate is connected with the claw body through a first shaft pin, and because a first sliding gap is arranged between the swing pressing plate and the claw body, the swing pressing plate is left and right floating on the claw body around the first shaft pin, the floating block is connected with the swing pressing plate through a second shaft pin, and because a second sliding gap is arranged between the floating block and the clamping swing pressing plate, the floating block is front and back floating on the side surface of the swing pressing plate around the second shaft pin, the swing pressing block is connected with the floating block through a third shaft pin, and because a third sliding gap is arranged between the swing pressing block and the clamping floating block, the swing pressing block is left and right floating on the floating block around the third shaft pin, and through the multidirectional floating, each tooth type pressing head can be tightly contacted with the outer circle of a processed automobile brake hub blank, and the clamping is uniform and firm;
(3) The structure of the invention is a mechanical mechanism, and is matched with a numerical control vertical lathe for use, and the standard lathe chuck provides the stability of the fixture for the invention, so that the fixture is simple and convenient to maintain in daily life, and the cost is relatively low.
Drawings
Figure 1 is a front view of the present invention,
figure 2 is a top view of figure 1,
figure 3 is a left side view of figure 1,
figure 4 is a cross-sectional view A-A of figure 2,
figure 5 is a perspective view of the floating jaw of the present invention,
figure 6 is a schematic view of the structure of the floating jaw of the present invention,
FIG. 7 is a top view of FIG. 6;
figure 8 is a left side view of figure 6,
figure 9 is a cross-sectional view B-B of figure 8,
fig. 10 is a C-C cross-sectional view of fig. 7.
In the figure:
1. a three-jaw chuck, which is provided with a three-jaw chuck,
1-1 parts of chuck connecting disc, 1-2 parts of chuck pull rod, 1-3 parts of chuck fixing screw,
2. the floating jaw is provided with a plurality of floating jaws,
2-1, a claw body is arranged,
2-1-1, countersunk head screw holes, 2-1-2, screw through holes,
2-1-3, a fourth socket head cap screw, 2-1-4, a claw body stepped hole,
2-2, swinging the pressing plate,
2-2-1, a swinging pressing plate through hole, 2-2-2, a swinging pressing plate stepped hole,
2-3. A first shaft pin,
2-4, swinging pressing blocks, 2-5, tooth-shaped pressing heads, 2-6, third shaft pins,
2-7 parts of second shaft pin, 2-8 parts of fifth inner hexagonal screw, 2-9 parts of hexagonal nut,
2-10. The floating blocks,
2-10-1, stepped bore of slider,
2-11 parts of a first socket head cap screw, 2-12 parts of a first sliding fit gap,
2-13, second socket head cap screws, 2-14, second slip fit gaps,
2-15, a third socket head cap screw, 2-16, a third slip fit gap,
3. and (5) positioning blocks.
Detailed Description
As shown in fig. 1 to 4, the three-jaw chuck comprises a three-jaw chuck 1, wherein 3 floating jaws 2 are connected to a T-shaped nut of the three-jaw chuck 1 through screws, the 3 floating jaws 2 are uniformly distributed on the circular three-jaw chuck 1, and 1 positioning block 3 is arranged in the middle of each 2 floating jaws 2;
as shown in fig. 5 and 6, the floating jaw 2 includes a jaw body 2-1, 2 countersunk head screw holes 2-1-1 and 1 screw through holes 2-1-2 are machined at the bottom of the jaw body 2-1, and the floating jaw 2 is fixedly connected with the three-jaw chuck 1 by using fourth socket head cap screws 2-1-3 and fifth socket head cap screws 2-8 through the 2 countersunk head screw holes 2-1-1 and the 1 screw through holes 2-1-2;
as shown in fig. 6, 7 and 9, a jaw body stepped hole 2-1-4 is processed on a jaw body 2-1, a fine hole of the jaw body stepped hole 2-1-4 is a threaded hole, a swinging pressing plate 2-2 is mounted on the upper end surface of the jaw body 2-1, a trapezoid body is arranged in the middle of the swinging pressing plate 2-2, two sides of the swinging pressing plate are rectangular bodies, a swinging pressing plate through hole 2-2-1 is processed on the upper end surface of the trapezoid body in the middle of the swinging pressing plate 2-2, a first shaft pin 2-3 is mounted in the swinging pressing plate through hole 2-1 and the stepped hole on the jaw body 2-1 and is fixed through a first hexagon socket head cap screw 2-11, a first sliding gap 2-12 is formed between the lower end surface of the swinging pressing plate 2-2 and the upper end surface of the jaw body 2-1, and the swinging pressing plate 2-2 can float left and right around the first shaft pin 2-3 on the jaw body 2-1;
as shown in fig. 8 and 9, a swing pressing plate stepped hole 2-2 is formed on the left and right 2 sides of the swing pressing plate 2-2, the fine hole of the swing pressing plate stepped hole 2-2 is a threaded hole, a floating block 2-10 is respectively mounted on the left and right sides of the swing pressing plate 2-2, a through hole is formed in the floating block 2-10, a second shaft pin 2-7 is mounted in the through hole and the swing pressing plate stepped hole 2-2 on the left and right 2 sides of the swing pressing plate 2-2 and is fixed by a second hexagon socket screw 2-13, a second sliding gap 2-14 is formed between the floating block 2-10 and the swing pressing plate 2-2, the floating block 2-10 can float around the second shaft pin 2-7 in front and back of the side face of the swing pressing plate 2-2, and a swing pressing block 2-4 is respectively mounted on the upper end face and the lower end face of the floating block 2-10;
as shown in fig. 7, the swinging pressing blocks 2-4 are in a T shape, the middle of a cross arm of the T shape is a trapezoid, two sides of the cross arm are rectangular, and the swinging pressing blocks 2-4 on two sides are combined with the swinging pressing plates 2-2 with the middle being the trapezoid and two sides being rectangular to form a curved surface similar to an arc;
as shown in fig. 9 and 10, slider stepped holes 2-10-1 are symmetrically formed in the upper and lower 2 end surfaces of the slider 2-10, fine holes of the upper and lower 2 slider stepped holes 2-10-1 are threaded holes and are mutually communicated, a through hole is formed in the swing pressing block 2-4, a third shaft pin 2-6 is installed in the through hole and the slider stepped hole 2-10-1 and is fixed through a third socket head cap screw 2-15, a third sliding fit gap 2-16 is formed between the slider 2-10 and the swing pressing block 2-4, the swing pressing block 2-4 can float left and right above the slider 2-10 around the third shaft pin 2-6, 2 threaded through holes are formed in the swing pressing block 2-4, and a tooth-shaped pressing head 2-5 is installed in the 2 threaded through holes, and the tooth-shaped pressing head 2-5 is locked and fixed through the socket head cap screw 2-9.
According to the invention, each floating claw 2 is provided with a claw body 2-1, each claw body 2-1 is provided with 1 swinging pressing plate 2-2, each swinging pressing plate 2-2 is provided with left and right 2 floating blocks 2-10, each floating block 2-10 is provided with an upper layer and a lower layer of swinging pressing blocks 2-4, the total number of the swinging pressing blocks 2-4 is 4, each swinging pressing block 2-4 is provided with left and right 2 tooth-shaped pressing heads 2-5, the total number of the tooth-shaped pressing heads 2-5 is 8, 8-point floating of each floating claw 2 is formed, as shown in fig. 1 and 2, each three-claw chuck 1 is provided with 3 floating claws 2, and a 24-point floating vertical car brake hub fixture with 24 floating points and 12 clamping points is formed by 24 clamping points.
When the three-jaw chuck is used, the chuck connecting disc 1-1 of the three-jaw chuck 1 is positioned and connected with a lathe spindle and locked by the chuck fixing screw 1-3, the chuck pull rod 1-2 of the three-jaw chuck 1 is connected with the lathe rotary pull cylinder, so that the clamping and loosening power source connection of the three-jaw chuck 1 is realized, a processed automobile brake hub is arranged in an automobile brake hub 24-point floating vertical lathe clamp, during operation, the swinging pressing plate 2-2 and the jaw body 2-1 can float left and right around the first shaft pin 2-3 on the jaw body 2-1 due to the first sliding gap 2-12, the floating block 2-10 and the clamping swinging pressing plate 2-2 are provided with the second sliding gap 2-14, the floating block 2-10 can float back and forth around the second shaft pin 2-7 on the side of the swinging pressing plate 2-2, the swinging pressing block 2-4 and the clamping floating block 2-10 are provided with the third sliding gap 2-16, the swinging pressing block 2-4 can float left and right around the third shaft pin 2-6 on the floating block 2-10, and the left and right sides of the floating block 2-10 can be contacted with the automobile brake hub through the left and right sides of the floating block 2-10, so that the rolling pressing block 2-2 can contact with the outer gear blank in multiple directions and the rolling heads can be guaranteed.
Claims (2)
1. The automobile brake hub 24-point floating vertical lathe clamp comprises a three-jaw chuck (1), and is characterized in that 3 floating jaws (2) are uniformly arranged on the three-jaw chuck (1), 1 positioning block (3) is arranged in the middle of each 2 floating jaws (2), each floating jaw (2) comprises a jaw body (2-1), a jaw body stepped hole (2-1-4) is machined in each jaw body (2-1), fine holes of the jaw body stepped holes (2-1-4) are threaded holes, a swing pressing plate (2-2) is arranged on the upper end face of each jaw body (2-1), a trapezoid body is arranged in the middle of each swing pressing plate (2-2), two sides of each swing pressing plate are rectangular, swing pressing plate through holes (2-2-1) are machined in the upper end face of each trapezoid body in the swing pressing plate (2-2), first shaft pins (2-3) are arranged in the swing pressing plate through holes (2-2-1) and the jaw body stepped holes (2-1-4), swing pressing plates (2-2-2) are respectively machined on the left side and the right sides of each jaw body stepped holes (2-1-4), swing pressing plates (2-2-2) are respectively arranged on the left side and the swing pressing plates (2-2-2) are respectively provided with the fine holes on the left side and the swing pressing plates (2-2-2-2) and the right sides of each swing pressing plate is respectively provided with the swing pressing plate stepped hole, the method comprises the steps that through holes are formed in a floating block (2-10), second shaft pins (2-7) are arranged in swing pressing plate stepped holes (2-2) on the left side and the right side of a swing pressing plate (2-2), swing pressing plates (2-4) are respectively arranged on the upper end face and the lower end face of the floating block (2-10), the floating block stepped holes (2-10-1) are symmetrically formed in the upper end face and the lower end face of the floating block (2-10), fine holes of the upper and lower floating block stepped holes (2-10-1) are threaded holes and are communicated with each other, through holes are formed in the swing pressing plates (2-4), third shaft pins (2-6) are arranged in the through holes and the floating block stepped holes (2-10-1), 2 threaded through holes are formed in the swing pressing plates (2-4), and tooth-shaped pressing heads (2-5) are arranged in the 2 threaded through holes, and the tooth-shaped pressing heads (2-5) are locked and fixed through hexagonal nuts (2-9);
a first sliding gap (2-12) is formed between the lower end surface of the swinging pressing plate (2-2) and the upper end surface of the jaw body (2-1), and the swinging pressing plate (2-2) can float left and right on the jaw body (2-1) around a first shaft pin (2-3); a second sliding fit gap (2-14) is arranged between the floating block (2-10) and the swinging pressing plate (2-2), and the floating block (2-10) can float around the second shaft pin (2-7) back and forth on the side surface of the swinging pressing plate (2-2); a third sliding fit gap (2-16) is arranged between the floating block (2-10) and the swinging pressing block (2-4), and the swinging pressing block (2-4) can float left and right on the floating block (2-10) around a third shaft pin (2-6).
2. The vehicle brake hub 24-point floating vertical lathe clamp according to claim 1, wherein the swinging pressing blocks (2-4) are in a T shape, the middle of a cross arm of the T shape is a trapezoid, two sides of the cross arm are rectangular, and the swinging pressing blocks (2-4) on two sides are combined with the swinging pressing plates (2-2) with the middle being the trapezoid and two sides being the rectangular to form a curved surface of an arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401997.1A CN108031879B (en) | 2017-12-22 | 2017-12-22 | 24-point floating vertical lathe clamp for automobile brake hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401997.1A CN108031879B (en) | 2017-12-22 | 2017-12-22 | 24-point floating vertical lathe clamp for automobile brake hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108031879A CN108031879A (en) | 2018-05-15 |
| CN108031879B true CN108031879B (en) | 2024-02-13 |
Family
ID=62100266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711401997.1A Active CN108031879B (en) | 2017-12-22 | 2017-12-22 | 24-point floating vertical lathe clamp for automobile brake hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108031879B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315102A (en) * | 2019-05-31 | 2019-10-11 | 陕西法士特汽车传动集团有限责任公司 | A kind of floating claw, retarder rotor fixture and its application method |
| KR20220082275A (en) * | 2020-12-10 | 2022-06-17 | 안재홍 | Multiple regular divisional Floating Jaw |
| KR102348826B1 (en) * | 2021-10-15 | 2022-01-10 | 브이앤씨테크 주식회사 | lathe source machining jig |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398733A (en) * | 1981-05-13 | 1983-08-16 | Mosley Jr Thomas C | Jawed, lathe chuck |
| CN201960389U (en) * | 2010-12-17 | 2011-09-07 | 山东济宁特力机床有限公司 | Automobile braking hub numerical control vertical lathe fixture |
| CN205237109U (en) * | 2015-12-15 | 2016-05-18 | 天润曲轴股份有限公司 | Three -jaw chuck that can 6 tight work pieces of clamp |
| CN205324766U (en) * | 2015-12-26 | 2016-06-22 | 张家口动力机械有限公司 | Jack catch floats |
| CN206169327U (en) * | 2016-08-29 | 2017-05-17 | 温岭市中达精密钢件有限公司 | Three -jaw positioning fixture floats |
| CN207615687U (en) * | 2017-12-22 | 2018-07-17 | 沈阳中晟自动化设备有限公司 | 24 point floating vertical lathe fixture of automotive brake hub |
-
2017
- 2017-12-22 CN CN201711401997.1A patent/CN108031879B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398733A (en) * | 1981-05-13 | 1983-08-16 | Mosley Jr Thomas C | Jawed, lathe chuck |
| CN201960389U (en) * | 2010-12-17 | 2011-09-07 | 山东济宁特力机床有限公司 | Automobile braking hub numerical control vertical lathe fixture |
| CN205237109U (en) * | 2015-12-15 | 2016-05-18 | 天润曲轴股份有限公司 | Three -jaw chuck that can 6 tight work pieces of clamp |
| CN205324766U (en) * | 2015-12-26 | 2016-06-22 | 张家口动力机械有限公司 | Jack catch floats |
| CN206169327U (en) * | 2016-08-29 | 2017-05-17 | 温岭市中达精密钢件有限公司 | Three -jaw positioning fixture floats |
| CN207615687U (en) * | 2017-12-22 | 2018-07-17 | 沈阳中晟自动化设备有限公司 | 24 point floating vertical lathe fixture of automotive brake hub |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108031879A (en) | 2018-05-15 |
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