CN112975485B - Clamp for efficiently positioning opening point and closing point of camshaft - Google Patents
Clamp for efficiently positioning opening point and closing point of camshaft Download PDFInfo
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- CN112975485B CN112975485B CN202110137393.0A CN202110137393A CN112975485B CN 112975485 B CN112975485 B CN 112975485B CN 202110137393 A CN202110137393 A CN 202110137393A CN 112975485 B CN112975485 B CN 112975485B
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- telescopic rod
- guide rail
- fork
- clamp
- concave guide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
A clamp for efficiently positioning an opening point and a closing point of a camshaft comprises a V-shaped block and an angle positioning structure, wherein the angle positioning structure comprises a concave guide rail, a spring, a telescopic rod, a shifting fork and a telescopic rod cover plate, the concave guide rail is provided with a U-shaped groove, the telescopic rod cover plate is tightly attached to the concave guide rail, so that the concave guide rail and the telescopic rod cover plate form a cavity with an opening on one surface, the spring and the telescopic rod are both positioned in the cavity, the telescopic rod is connected with the shifting fork, the shifting fork consists of two fork heads and a fixing part, electric transmission does not exist between the fork heads, a cylinder is arranged on the inner diameter of each fork head, a wiring terminal is arranged on the outer diameter of each fork head, and the wiring terminal is connected with an indicator light through an electric wire; the cylinders of the two fork heads are in contact with the cam at the same time, so that the angle between the center line of the cam and the timing pin hole to be machined is aligned, the three-coordinate detector is replaced to reduce the cost, and meanwhile, the alignment process and the fixing process of the clamp are both located on the end face of the machining center, so that the locking clamp is not needed to be transferred, and one process is reduced.
Description
Technical Field
The invention relates to a clamp for efficiently positioning an opening point and a closing point of a camshaft, belonging to the technical field of machining.
Background
In the process of machining a timing pin hole in the end face of a camshaft, a machining center can accurately align the axis of the camshaft, then the camshaft can be moved to any coordinate position of the end face of a product by taking the axis as a reference, but the angle numerical value between the center line of the cam and the center line of the timing pin hole cannot be accurately obtained. However, this processing method has several disadvantages as follows: firstly, after the three-coordinate detector is used for aligning the angle, an accumulated error exists between the locking angle clamp and the angle clamp fixed on the machining center platform, and meanwhile, the cost of the three-coordinate detector is higher; secondly, the angle is aligned by the three-coordinate detector and then the workpiece is transferred to a machining center platform for machining, so that a working procedure is added, and the labor intensity is increased; thirdly, only can carry out the alignment to single camshaft at every turn, efficiency is slower.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides the clamp for efficiently positioning the opening point and the closing point of the camshaft, the alignment process and the fixing process of the clamp are both positioned on the end surface of the machining center, so that the transfer process is reduced, the error and the labor intensity are reduced, and meanwhile, the cylinders of two fork heads and the cam are simultaneously contacted with each other to align the angle of the camshaft, so that a three-coordinate detector is replaced to reduce the cost.
The technical scheme for realizing the aim of the invention is that the clamp for efficiently positioning the opening point and the closing point of the camshaft at least comprises a V-shaped block arranged on the end surface of a machining center, two sides of the V-shaped block are respectively provided with an angle positioning structure, the angle positioning structure comprises a base, a concave guide rail, a spring, a telescopic rod, a shifting fork and a telescopic rod cover plate, the bottom surface of the base is tightly attached to the end surface of the machining center, the side surface of the bottom surface of the base is tightly attached to the left side surface of the concave guide rail, the right side surface of the concave guide rail is provided with a U-shaped groove which does not penetrate through the concave guide rail, one surface of the telescopic rod cover plate is tightly attached to the right side surface of the concave guide rail, so that the concave guide rail and the telescopic rod cover plate form a cavity with an opening, the spring and the telescopic rod are both positioned in the cavity, one end of the spring is contacted with the U-shaped groove bottom of the concave guide rail, the other end of the telescopic rod is contacted with the telescopic rod, the end of the telescopic rod which is not contacted with the spring is positioned outside the cavity and is connected with the arched shifting fork, the shifting fork consists of two fork heads and a fixing part matched with the fork heads in shape, the fork heads are not electrically transmitted with each other, a cylinder is arranged on the inner diameter of each fork head, a wiring terminal is arranged on the outer diameter of each fork head, the wiring terminal is connected with the indicator lamp through a zero line, when the cylinders of the two fork heads are simultaneously contacted with the cam, the indicator lamp is in a light-emitting state, and the indicator lamp is in a light-off state under the other states;
the V-shaped blocks are grouped in pairs, the two V-shaped blocks in each group are parallel to each other, the central axes of the V-shaped openings of the two V-shaped blocks are parallel to each other, a T-shaped support is arranged between the two V-shaped blocks in each group, the bottom of the T-shaped support is inserted into the machining center, the upper portion of the T-shaped support is higher than the V-shaped blocks, and the T-shaped support is provided with through holes which penetrate through the T-shaped support from top to bottom.
The technical proposal is further improved as follows: the base is an L-shaped plate.
And the base is provided with a threaded hole and is fixed with the machining center through a bolt.
And deep holes with corresponding positions and sizes are arranged on the base, the concave guide rail and the telescopic rod cover plate.
The telescopic rod is provided with a deep hole, the telescopic rod cover plate is provided with a long-shaped groove corresponding to the deep hole, the angle positioning structure further comprises a telescopic rod locking screw, the lower portion of the telescopic rod locking screw is located in the deep hole, the middle portion of the telescopic rod locking screw is located in the long-shaped groove, and the upper portion of the telescopic rod locking screw is located outside the telescopic rod cover plate.
And the material of the cylinder is hard alloy.
And the fork head is connected with the fork head through epoxy resin, and the fork head is connected with the fixing piece through epoxy resin.
According to the technical scheme, the clamp for efficiently positioning the opening point and the closing point of the camshaft provided by the invention has the advantages that the cylinders of the two forks are simultaneously contacted with the cam to align the angle between the center line of the cam and the timing pin hole to be machined, so that a three-coordinate detector is replaced to reduce the cost, and meanwhile, the alignment procedure and the fixing procedure of the clamp are both positioned on the end surface of the machining center, so that the clamp does not need to be locked for transfer, one procedure is reduced, and the labor intensity is reduced;
and only need a T type support and V type piece, just fix two camshafts, consequently fixed efficiency is higher.
Drawings
FIG. 1 is a schematic structural diagram of a clamp for efficiently positioning an opening point and a closing point of a camshaft provided by the invention;
FIG. 2 is a perspective assembly view of an angular positioning structure in the fixture for efficiently positioning the opening point and the closing point of the camshaft according to the present invention;
FIG. 3 is a schematic structural diagram of a shifting fork in the fixture for efficiently positioning the opening point and the closing point of the camshaft according to the present invention;
in the figure: 1. a T-shaped bracket; 2. a power distribution cabinet; 3. an indicator light; 4. an electric wire; 5. a V-shaped block; 6. a machining center; 7. An angle positioning structure; 8. a base; 9. a concave guide rail; 10. a spring; 11. a telescopic rod; 12. a shifting fork; 13. a telescopic rod cover plate; 14. a telescopic rod locking screw; 15. a wiring terminal; 16. a fixing member; 17. an epoxy resin; 18. and (4) a cylinder.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples, and the present invention is not limited to the examples.
Referring to fig. 1, a clamp for efficiently positioning an opening point and a closing point of a camshaft comprises V-shaped blocks 5 installed on the end surface of a machining center 6, the camshaft is placed on the V-shaped blocks 5, a specific circular shaft is placed on the V-shaped blocks 5, the V-shaped blocks 5 are grouped in pairs, two V-shaped blocks 5 in each group are parallel to each other, the central axes of the V-shaped openings of the two V-shaped blocks 5 are parallel to each other, a T-shaped support 1 is arranged between the two V-shaped blocks 5 in each group, the bottom of the T-shaped support 1 is inserted into the machining center 6, the upper portion of the T-shaped support 1 is higher than the V-shaped blocks 5, the T-shaped support 1 is provided with through holes which penetrate through the T-shaped support 1 from top to bottom, the through holes are threaded holes, the T-shaped support 1 is moved downwards by screwing bolts until the upper portion of the T-shaped support 1 contacts the camshaft on the V-shaped blocks 5, the camshaft is fixed on the V-shaped blocks 5 by the early warning force of the bolts, meanwhile, two V-shaped blocks 5 are arranged in one group of V-shaped blocks 5, so that the T-shaped support 1 and the two V-shaped blocks 5 can fix two camshafts only by screwing one bolt, and the fixing efficiency is improved; in the embodiment, two sets of V-shaped blocks 5 are usually used to fix two camshafts, one set of V-shaped blocks 5 fixes the upper portions of the two camshafts, and the other set of V-shaped blocks 5 fixes the lower portions of the two camshafts, so that the camshafts are more stably fixed;
referring to fig. 2 to 3, the two sides of the V-shaped block 5 are each provided with an angle positioning structure 7, the angle positioning structures 7 include a base 8, a concave guide rail 9, a spring 10, a telescopic rod 11, a shift fork 12, and a telescopic rod cover plate 13, the base 8 is an L-shaped plate, the bottom surface of the base 8 is tightly attached to the end surface of the machining center 6, the bottom surface of the base 8 is provided with a threaded hole, the base 8 is fixed to the machining center 6 through a bolt, the side surface of the bottom surface of the base 8 is tightly attached to the left side surface of the concave guide rail 9, the right side surface of the concave guide rail 9 is provided with a U-shaped groove which does not penetrate through the concave guide rail 9, one surface of the telescopic rod cover plate 13 is tightly attached to the right side surface of the concave guide rail 9, the base 8, the concave guide rail 9, and the telescopic rod cover plate 13 are provided with deep holes with corresponding positions and sizes, the base 8, the concave guide rail 9 and the telescopic rod cover plate 13 are fixed together through bolts, the concave guide rail 9 and the telescopic rod cover plate 13 form a cavity with an opening, the spring 10 and the telescopic rod 11 are both positioned in the cavity, one end of the spring 10 is contacted with the U-shaped groove bottom of the concave guide rail 9, the other end is contacted with the telescopic rod 11, one end of the telescopic rod 11, which is not contacted with the spring 10, is positioned outside the cavity and is connected with the shifting fork 12, the shifting fork 12 consists of two forks and a fixing part 16 matched with the forks in shape, the forks are not electrically transmitted with each other, specifically, the forks and the fixing part 16 are connected through epoxy resin 17, so the two forks are two independent electrodes, a cylinder 18 is arranged on the inner diameter of each fork, the cylinder 18 is made of hard alloy, the abrasion resistance of the hard alloy is increased, a wiring terminal 15 is arranged on the outer diameter of each fork, the wiring terminal 15 is connected with the indicator lamp 3 through a zero line, when the cylinders 18 of the two forks are simultaneously contacted with the cam, the indicator lamp 3 is in a luminous state, and the indicator lamp 3 is in an extinguishing state under other states, indicator lamp 3 is arranged in switch board 2, switch board 2 also has 24V power, the circuit breaker is located 2 door upper portions of switch board downtheholely, indicator lamp 3 is located 2 lower parts of switch board downtheholely, 24V power output 24V electric wire 4 connects 3 one end of indicator lamp in switch board 2, 3 other end line of indicator lamp connect fork head binding post 15 down, another 24V electric wire 4 of 24V power output connects the circuit breaker and connects one end, the other end line of circuit breaker connects fork head binding post 15.
The telescopic rod 11 is provided with a deep hole, the telescopic rod cover plate 13 is provided with a long-shaped groove corresponding to the deep hole, the angle positioning structure 7 further comprises a telescopic rod locking screw 14, the lower portion of the telescopic rod locking screw 14 is located in the deep hole, the middle portion of the telescopic rod locking screw 14 is located in the long-shaped groove, the upper portion of the telescopic rod locking screw 14 is located outside the telescopic rod cover plate 13, the shifting fork 12 can be controlled to advance and retreat through the manually controlled telescopic rod locking screw 14, and the clamp is more convenient to use.
The working principle of the clamp is as follows: the circular shaft sections of the two camshafts are placed on a group of V-shaped blocks 5, the camshafts are rotated to enable the cams of the cams to be in contact with shifting forks 12, for example, when the camshafts rotate anticlockwise, the upper shifting forks 12 are in contact with the lift surfaces of the cams, the shifting forks 12 are subjected to component force in the direction of a telescopic rod 11, springs 10 are compressed accordingly, the shifting forks 12 also retreat, when the upper shifting forks 12 are not in contact with the vertexes of the cams, the shifting forks 12 advance under the compression force of the springs 10, when the two cylinders 18 are in complete contact with the lift surfaces of the cams, corresponding indicating lamps 3 on a power distribution cabinet 2 are in a light-emitting state, the point where the upper cylinders 18 are in contact with the lift surfaces of the cams is a cam valve opening point, the point where the lower cylinders 18 are in contact with the lift surfaces of the cams is a cam valve closing point, the indicating lamps 3 are in a light-emitting state, the angle between the central line of the cams and a timing pin hole to be processed is an angle to be processed, bolts are tightened to enable the T-shaped support 1 to move downwards, the camshaft is fixed to the V-block 5.
Therefore, the alignment procedure and the fixing procedure of the clamp are both positioned on the end face of the machining center 6, and the clamp does not need to be locked for transfer, so that one procedure is reduced, and the labor intensity is reduced.
Claims (7)
1. The utility model provides an anchor clamps of high-efficient location camshaft opening point and closing point, is at least including installing the V type piece on the machining center terminal surface, its characterized in that: the angle positioning structure comprises a base, a concave guide rail, a spring, a telescopic rod, a shifting fork and a telescopic rod cover plate, wherein the bottom surface of the base is tightly attached to the end surface of the machining center, the side surface of the bottom surface of the base is tightly attached to the left side surface of the concave guide rail, a U-shaped groove which does not penetrate through the concave guide rail is formed in the right side surface of the concave guide rail, one surface of the telescopic rod cover plate is tightly attached to the right side surface of the concave guide rail, so that a cavity with an opening is formed between the concave guide rail and the telescopic rod cover plate, the spring and the telescopic rod are both positioned in the cavity, one end of the spring is contacted with the U-shaped groove bottom of the concave guide rail, the other end of the spring is contacted with the telescopic rod, the end of the telescopic rod, which is not contacted with the spring, is positioned outside the cavity and is connected with the shifting fork, the shifting fork comprises two forks and a fixing piece matched with the fork head in shape, the electric transmission does not exist among the forks, a cylinder is arranged on the inner diameter of the fork heads, the outer diameter of the fork is provided with a wiring terminal, the wiring terminal is connected with the indicator lamp through an electric wire, when the cylinders of the two fork heads are simultaneously contacted with the cam, the indicator lamp is in a luminous state, and the indicator lamp is in an off state under the other states;
two V type pieces are two by two a set of, and two V type pieces in every group are parallel to each other, and the "V" shape opening central axis of two V type pieces is parallel to each other, are equipped with T type support between two V type pieces in every group, and machining center is inserted to the bottom of T type support, and the upper portion of T type support is higher than V type piece, and T type support is equipped with the through-hole that goes up and down through T type support.
2. The clamp for efficiently positioning the opening point and the closing point of the camshaft according to claim 1, wherein: the base is an L-shaped plate.
3. The clamp for efficiently positioning the opening point and the closing point of the camshaft according to claim 2, wherein: the base is provided with a threaded hole and is fixed with the machining center through a bolt.
4. The clamp for efficiently positioning the opening point and the closing point of the camshaft according to claim 1, characterized in that: deep holes with corresponding positions and sizes are arranged on the base, the concave guide rail and the telescopic rod cover plate.
5. The clamp for efficiently positioning the opening point and the closing point of the camshaft according to claim 1, wherein: the telescopic link is equipped with the deep hole, the telescopic link apron is equipped with the long type groove that corresponds with the deep hole, angle location structure still includes telescopic link locking screw, and telescopic link locking screw lower part is arranged in the deep hole, and telescopic link locking screw middle part is arranged in long type groove, and telescopic link locking screw upper portion is arranged outside the telescopic link apron.
6. The clamp for efficiently positioning the opening point and the closing point of the camshaft according to claim 1, wherein: the cylinder is made of hard alloy.
7. The clamp for efficiently positioning the opening point and the closing point of the camshaft according to claim 1, wherein: the fork head is connected with the fork head through epoxy resin, and the fork head is connected with the fixing piece through epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110137393.0A CN112975485B (en) | 2021-02-01 | 2021-02-01 | Clamp for efficiently positioning opening point and closing point of camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110137393.0A CN112975485B (en) | 2021-02-01 | 2021-02-01 | Clamp for efficiently positioning opening point and closing point of camshaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112975485A CN112975485A (en) | 2021-06-18 |
| CN112975485B true CN112975485B (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110137393.0A Active CN112975485B (en) | 2021-02-01 | 2021-02-01 | Clamp for efficiently positioning opening point and closing point of camshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112975485B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6886820B1 (en) * | 2004-03-17 | 2005-05-03 | Vektek, Inc. | Swing clamp apparatus with spring biased cam assembly |
| CN202491100U (en) * | 2012-02-28 | 2012-10-17 | 荆州环球汽车零部件制造有限公司 | Novel cam positioning device |
| CN103394858B (en) * | 2013-08-09 | 2015-07-08 | 安徽江淮汽车股份有限公司 | Cam combined structure and control system switching structure of multiple vehicle types sharing clamp |
| CN104493268A (en) * | 2014-11-26 | 2015-04-08 | 柳州瑞明威罗动力机械有限公司 | Tooling for milling center hole in cam shaft and method for milling center hole by using same |
| CN106180795B (en) * | 2016-08-11 | 2018-10-12 | 宁波圣龙浦洛西凸轮轴有限公司 | Puncher for the holes machining cam axis VCT |
| CN106271729B (en) * | 2016-08-11 | 2018-07-10 | 宁波圣龙浦洛西凸轮轴有限公司 | The vertical processing tool of camshaft |
| CN208178980U (en) * | 2017-08-24 | 2018-12-04 | 江苏沃得机电集团有限公司 | A kind of shift fork milling side modular fixture |
| CN208409246U (en) * | 2018-06-22 | 2019-01-22 | 亚新科凸轮轴（仪征）有限公司 | Camshaft axial direction positioning device |
-
2021
- 2021-02-01 CN CN202110137393.0A patent/CN112975485B/en active Active
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| Publication number | Publication date |
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| CN112975485A (en) | 2021-06-18 |
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