CN112496809A - Clamping device and method for processing linear groove of screw part - Google Patents
Clamping device and method for processing linear groove of screw part Download PDFInfo
- Publication number
- CN112496809A CN112496809A CN202011406018.3A CN202011406018A CN112496809A CN 112496809 A CN112496809 A CN 112496809A CN 202011406018 A CN202011406018 A CN 202011406018A CN 112496809 A CN112496809 A CN 112496809A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 29
- 238000007906 compression Methods 0.000 claims abstract description 29
- 238000003754 machining Methods 0.000 claims abstract description 19
- 230000007704 transition Effects 0.000 claims abstract description 14
- 238000009826 distribution Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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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
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- Jigs For Machine Tools (AREA)
Abstract
The invention provides a clamping device and a clamping method for processing a linear groove of a screw part, wherein the clamping device comprises a clamping base, 1-2 rows of mounting holes are processed on the front surface of the clamping base along the vertical direction, a slit groove is formed in the middle of each mounting hole, a transition groove is formed in one side of each mounting hole, which is close to the side surface of the clamping base, a threaded hole is formed in the side surface of the clamping base from the transition groove in a penetrating manner, and a compression screw is arranged in each threaded hole. The method comprises the following steps: the screws are inserted into the mounting holes of the clamping base in a row, the compression screws are screwed in to compress the elastic clamping pieces, so that the elastic clamping parts are close to the screws to be compressed, and meanwhile, the screws are unevenly deformed to compress all the screws. The invention has simple and convenient operation and small labor intensity of workers; 1-2 rows of screws can be clamped at one time, and the machining efficiency is improved by more than one time; the processing cost is reduced, and the yield is improved; the straight groove is symmetrical relative to the axial center, and the product quality is improved.
Description
Technical Field
The invention relates to the technical field of screw linear groove machining, in particular to a clamping device and a clamping method for linear groove machining of screw parts.
Background
The processing method of the screw straight-line groove is generally three, one is direct molding of a die, one is processing molding of a milling machine, and the other is processing molding of linear cutting. The die is directly formed, the processing speed is very high, the efficiency is very high, the cost is relatively low, but the defect is that the two sides of the straight groove can generate an external splayed shape, and the straight groove is not smooth; the straight groove processed and formed by the milling machine and the linear cutting machine is flat and smooth, two sides of the straight groove are not provided with an external splayed shape, but the straight groove needs to be clamped by a clamping device during processing, otherwise, the straight groove cannot be processed. The clamping mode mainly has that the bench vice presss from both sides tightly, the three-jaw chuck presss from both sides tightly, the clamp plate compresses tightly, when adopting the bench vice to press from both sides tightly, the three-jaw chuck presss from both sides tightly, once only can process a part, the clamping is frequent, and efficiency is extremely low, and workman intensity of labour is big, therefore the processing cost is higher, and the clamp force is difficult to control moreover, the condition that the screw thread was destroyed appears when the clamp force was too big easily, leads to scrapping, and the smaller screw is difficult.
When the pressing plate is adopted for pressing, for example, as shown in fig. 3, the upper die 11 and the lower die 10 are adopted for closing and clamping, a row of positioning holes 12 are formed between the upper die 11 and the lower die 10 for clamping screws, and the clamping efficiency is higher than that of the former two. However, the diameters of the screws have certain errors, and the clamping positions are different, so that the screws with larger diameters are easy to be clamped, the screws with smaller diameters are loosened, the processing of the straight-line groove is not facilitated, the processed finished product and the semi-finished product are mixed together, and even the screw threads with larger diameters can be damaged; secondly, the center of the positioning hole generates certain central symmetry deviation in the process of closing up and down, so that the symmetry degree of the milled straight-line groove relative to the axis center has certain deviation; and only one row of screws can be clamped, so that the operation is inconvenient, and the smaller screws are difficult to clamp.
Disclosure of Invention
In order to solve the technical problem, the invention provides a clamping device and a clamping method for processing a linear groove of a screw part.
The invention is realized by the following technical scheme.
The invention provides a clamping device for processing a linear groove of a screw part, which comprises a clamping base, wherein 1-2 rows of mounting holes are processed in the front of the clamping base along the vertical direction, a gap groove with the thickness of 0.3-0.8 mm is formed in the middle of each mounting hole, transition grooves are formed in the front of the clamping base corresponding to the mounting holes in parallel, the transition grooves are positioned on one side, close to the side face of the clamping base, of each mounting hole, an elastic clamping piece is formed between each transition groove and each mounting hole, threaded holes are formed in the clamping base in a penetrating mode from each transition groove to the side face of the clamping base, the threaded holes are arranged along the vertical direction, and compression screws are arranged in the threaded.
When the compression screw is screwed in, the compression screw compresses the elastic clamping piece from different positions, the elastic clamping piece generates uneven deformation while compressing the screw, and the gap between the screw with smaller diameter and the mounting hole caused by errors is eliminated, so that all screws are clamped.
The tightening force of the compression screw is not sufficient to break the screw thread.
The width of the slit groove is 0.5 mm.
The depth of the slit groove and the transition groove is larger than that of the mounting hole.
The depth of the mounting hole is determined according to the length of the processed screw, so that the bottom surface of the straight groove after the straight groove is processed is higher than the plane of the clamping base.
And each compression screw is arranged in the middle of the distribution line of the corresponding 3-4 mounting holes.
The lowest axial projection profile of the threaded hole does not exceed the bottom of the mounting hole.
The length of the threaded hole is not less than 8 mm.
Each row of the mounting holes is 10-18.
The invention also provides a clamping method for processing the linear groove of the screw part, which comprises the following steps:
the method comprises the steps of inserting screws into mounting holes of a clamping base in a row, arranging a slit groove in the middle of the mounting holes, enabling one side of each mounting hole to be an elastic clamping portion and the other side of each mounting hole to be a fixing portion, extruding the elastic clamping portions from point positions along the arrangement direction of the screws, enabling the elastic clamping portions to approach and compress the screws, enabling the elastic clamping portions to deform unevenly, enabling elastic clamping pieces to protrude towards the mounting holes at the positions of the screws with small diameters, eliminating gaps between the screws and the mounting holes, stopping extruding the elastic clamping portions when all the screws are clamped, keeping the existing pressure, clamping the clamping base on a fixing machine, and machining the straight groove.
The elastic clamping part is extruded from different positions by a plurality of compression screws, and the screwing of the compression screws is controlled by a torque wrench.
The invention has the beneficial effects that:
compared with the prior art, the invention has the following advantages: (1) the invention has simple and convenient operation, can clamp the small screw conveniently, and has small labor intensity; (2) 1-2 rows of screws can be clamped at one time, all the screws are clamped tightly, and the whole machining can be finished by one-time feeding, so that the situation that finished products and semi-finished products are mixed together can not occur, and compared with the prior art, the machining efficiency is improved by more than one time; (3) the processing cost is reduced, the damage to the screw thread caused by overlarge clamping force can be prevented, and the yield is improved; (4) the screws clamped at each time are all drawn close to the same direction of the mounting hole uniformly, and the milled straight-line grooves are symmetrical relative to the center of the shaft, so that deviation is avoided, and the product quality is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of fig. 1.
In the figure: 1-clamping a base; 2-mounting holes; 3-a slot; 4-a transition groove; 5-a compression screw; 6-threaded hole.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in FIGS. 1-2, the structure of the present invention is schematically illustrated:
the invention provides a clamping device for processing a linear groove of a screw part, which comprises a clamping base 1, wherein 1-2 rows of mounting holes 2 are processed on the front surface of the clamping base 1 along the vertical direction, a 0.3-0.8 mm gap groove 3 is formed in the middle of each mounting hole 2, transition grooves 4 are formed in the front surface of the clamping base 1 in parallel corresponding to the mounting holes 2, the transition grooves 4 are positioned on one side of the mounting holes 2 close to the side surface of the clamping base 1, an elastic clamping sheet is formed between the transition grooves 4 and the mounting holes 2, threaded holes 6 are formed in the clamping base 1 from the transition grooves 4 in a penetrating mode, the threaded holes 6 are vertically arranged, and compression screws 5 are arranged in the threaded holes 6.
When the linear groove of the screw is machined, the screw is firstly inserted into the mounting hole 2, then the compression screw 5 is screwed, the elastic clamping piece moves towards the screw, the slit groove 3 contracts, the screw is clamped, the clamping base 1 is clamped on a bench vice, the milling machining and the linear cutting machining of the linear groove can be carried out, and the machining of a plurality of parts can be completed by one-time feeding. Because the elastic clamping piece can be deformed, the compression screw 5 compresses the elastic clamping piece from different positions, so that screws at all hole positions can be clamped, the screws with larger diameters cannot be damaged due to large clamping force, and in addition, the maximum shrinkage degree of the mounting hole 2 can be limited by the slit groove 3, so that the screws are protected. The invention can be used for processing parts such as screws, studs, countersunk screws and the like.
Therefore, the invention has simple and convenient operation, can clamp the small screw conveniently, and has small labor intensity; 1-2 rows of screws can be clamped at one time, all the screws are clamped tightly, and the whole machining can be finished by one-time feeding, so that the situation that finished products and semi-finished products are mixed together can not occur, and compared with the prior art, the machining efficiency is improved by more than one time; the processing cost is reduced, the damage to the screw thread caused by overlarge clamping force can be prevented, and the yield is improved; the screws clamped at each time are all drawn close to the same direction of the mounting hole 2 consistently, and the milled straight grooves are symmetrical relative to the center of the shaft, so that deviation is avoided, and the product quality is improved.
When the compression screw 5 is screwed in, the compression screw compresses the elastic clamping piece from different positions, the elastic clamping piece generates uneven deformation while compressing the screw, the gap between the screw with smaller diameter and the mounting hole 2 caused by errors is eliminated, and all the screws are clamped.
The tightening force of the compression screw 5 is not sufficient to break the screw thread.
The width of the slot 3 is 0.5 mm. The screw clamping device is convenient to clamp the screw, limits the movement of the elastic pressing sheet, protects the screw from being damaged, and is most suitable for processing small screws with specifications of M1.6, M2, M2.5 and the like.
The depth of the slit groove 3 and the transition groove 4 is larger than that of the mounting hole 2. The elastic pressing piece is convenient to push, and the clamping difficulty is reduced.
The depth of the mounting hole 2 is determined according to the length of the processed screw, so that the bottom surface of the straight groove after the straight groove is processed is higher than the plane of the clamping base 1. The cutter and the clamping base 1 are prevented from interfering, and the clamping base 1 and the cutter are prevented from being damaged.
Each compression screw 5 is arranged in the middle of the distribution line of the corresponding 3-4 mounting holes 2. By this arrangement it is ensured that the compression screws 5 are of a size sufficient to push the resilient clamping piece without damaging the threads thereof, while the deformation of the clamping piece is sufficient to clamp each screw.
The axial projection profile of the threaded hole 6 does not exceed the bottom of the mounting hole 2 at the lowest. The position of the mounting hole 2 is ensured to be acted by the pressing force, and the force required for screwing the pressing screw 5 and the counter force of the elastic pressing sheet to the pressing screw 5 are reduced.
The length of the threaded hole 6 is not less than 8 mm. The mounting plate of the compression screw 5 is ensured to have enough rigidity, and the compression screw 5 has enough stress area, so that the clamping looseness and the damage to the compression screw 5 are avoided.
Each row of the mounting holes 2 comprises 10-18. The clamping operation time and the device size at each time can be conveniently controlled, so that the device can be stably clamped on the bench vice.
The invention also provides a clamping method for processing the linear groove of the screw part, which comprises the following steps:
the method comprises the steps of inserting screws into mounting holes 2 of a clamping base 1 in a row, arranging a gap groove 3 in the middle of each mounting hole 2, enabling one side of each mounting hole 2 to be an elastic clamping portion and the other side of each mounting hole to be a fixing portion, extruding the elastic clamping portions from a point position along the arrangement direction of the screws, enabling the elastic clamping portions to approach and compress the screws, and generating uneven deformation at the same time, enabling elastic clamping pieces to protrude towards the mounting holes 2 at the positions of the screws with small diameters to eliminate gaps between the screws and the mounting holes 2, stopping extruding the elastic clamping portions when all the screws are clamped, keeping the existing pressure, and clamping the clamping base 1 on a fixing machine to process a straight groove.
The elastic clamping part is extruded from different points by a plurality of compression screws 5, and the screwing of the compression screws 5 is controlled by a torque wrench.
Claims (10)
1. The utility model provides a clamping device of screw class part word groove processing which characterized in that: including clamping base (1), 1 ~ 2 mounting holes (2) are arranged along vertical processing in the front of clamping base (1), a 0.3 ~ 0.8 mm's slot (3) are seted up at the middle part of mounting hole (2), clamping base (1) openly has seted up aqueduct (4) corresponding to mounting hole (2) side by side, aqueduct (4) are located one side that mounting hole (2) are close to clamping base (1) side, cross and form a slice elasticity between aqueduct (4) and mounting hole (2) and press from both sides tight piece, from aqueduct (4) to clamping base (1) side run through threaded hole (6) seted up, threaded hole (6) are along vertical arrangement, be equipped with housing screw (5) in threaded hole (6).
2. The clamping device for the linear groove machining of the screw part according to claim 1, characterized in that: when the compression screw (5) is screwed in, the compression screw compresses the elastic clamping piece from different positions, the elastic clamping piece generates uneven deformation while compressing the screw, the gap between the screw with smaller diameter and the mounting hole (2) caused by errors is eliminated, and all the screws are clamped.
3. The clamping device for the linear groove machining of the screw part according to claim 2, characterized in that: the tightening force of the compression screw (5) is not sufficient to break the screw thread.
4. The clamping device for the linear groove machining of the screw part according to claim 1, characterized in that: the width of the slit groove (3) is 0.5 mm.
5. The clamping device for the linear groove machining of the screw part according to claim 1, characterized in that: the depth of the slit groove (3) and the transition groove (4) is greater than that of the mounting hole (2).
6. The clamping device for the linear groove machining of the screw part according to claim 5, characterized in that: the depth of the mounting hole (2) is determined according to the length of the processed screw, so that the bottom surface of the straight groove after the straight groove is processed is higher than the plane of the clamping base (1).
7. The clamping device for the linear groove machining of the screw part according to claim 1, characterized in that: each compression screw (5) is arranged in the middle of the distribution line of the corresponding 3-4 mounting holes (2).
8. The clamping device for the linear groove machining of the screw part according to claim 1, characterized in that: the lowest axial projection profile of the threaded hole (6) does not exceed the bottom of the mounting hole (2).
9. A clamping method for processing a linear groove of a screw part is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
the method comprises the steps of inserting screws into mounting holes (2) of a clamping base (1) in a row, arranging a gap groove (3) in the middle of each mounting hole (2), enabling one side of each mounting hole (2) to be an elastic clamping portion and the other side of each mounting hole to be a fixing portion, extruding the elastic clamping portions from a point position along the arrangement direction of the screws, enabling the elastic clamping portions to approach and compress the screws, and generating uneven deformation at the same time, enabling elastic clamping pieces to protrude towards the mounting holes (2) at the positions of the screws with small diameters to eliminate gaps between the screws and the mounting holes (2), stopping extruding the elastic clamping portions when all the screws are clamped, keeping the existing pressure, and clamping the clamping base (1) on a fixing machine to process a straight groove.
10. The clamping method for the linear groove machining of the screw part according to claim 1, characterized in that: the elastic clamping part is extruded from different positions by a plurality of compression screws (5), and the screwing of the compression screws (5) is controlled by a torque wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406018.3A CN112496809B (en) | 2020-12-05 | 2020-12-05 | Clamping device and method for processing linear groove of screw part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406018.3A CN112496809B (en) | 2020-12-05 | 2020-12-05 | Clamping device and method for processing linear groove of screw part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112496809A true CN112496809A (en) | 2021-03-16 |
| CN112496809B CN112496809B (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011406018.3A Active CN112496809B (en) | 2020-12-05 | 2020-12-05 | Clamping device and method for processing linear groove of screw part |
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| CN (1) | CN112496809B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116100262A (en) * | 2023-03-06 | 2023-05-12 | 陕西斯瑞新材料股份有限公司 | Preparation method and application of an elastic clamping part fixture |
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| US20120326402A1 (en) * | 2010-03-02 | 2012-12-27 | Burkhart Grob | Machine tool |
| CN104526397A (en) * | 2014-12-03 | 2015-04-22 | 重庆红旗缸盖制造有限公司 | Decompression shaft head face milling clamping mechanism |
| CN204770392U (en) * | 2015-07-16 | 2015-11-18 | 贵州航太精密制造有限公司 | A countersunk screw word groove processingequipment |
| CN109365886A (en) * | 2018-11-21 | 2019-02-22 | 福建兵工装备有限公司 | Screw, screw head flat recess continous way slotter |
| CN208840916U (en) * | 2018-09-26 | 2019-05-10 | 东莞市超科五金电子有限公司 | A four-axis clamp for handle fixing ring |
| US20190321939A1 (en) * | 2018-04-19 | 2019-10-24 | Citic Dicastal Co., Ltd. | Wheel fixture |
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2020
- 2020-12-05 CN CN202011406018.3A patent/CN112496809B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120326402A1 (en) * | 2010-03-02 | 2012-12-27 | Burkhart Grob | Machine tool |
| CN104526397A (en) * | 2014-12-03 | 2015-04-22 | 重庆红旗缸盖制造有限公司 | Decompression shaft head face milling clamping mechanism |
| CN204770392U (en) * | 2015-07-16 | 2015-11-18 | 贵州航太精密制造有限公司 | A countersunk screw word groove processingequipment |
| US20190321939A1 (en) * | 2018-04-19 | 2019-10-24 | Citic Dicastal Co., Ltd. | Wheel fixture |
| CN208840916U (en) * | 2018-09-26 | 2019-05-10 | 东莞市超科五金电子有限公司 | A four-axis clamp for handle fixing ring |
| CN109365886A (en) * | 2018-11-21 | 2019-02-22 | 福建兵工装备有限公司 | Screw, screw head flat recess continous way slotter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116100262A (en) * | 2023-03-06 | 2023-05-12 | 陕西斯瑞新材料股份有限公司 | Preparation method and application of an elastic clamping part fixture |
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| Publication number | Publication date |
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| CN112496809B (en) | 2021-11-30 |
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