CN113732757B - A anchor clamps for machine tool cushion - Google Patents
A anchor clamps for machine tool cushion Download PDFInfo
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- CN113732757B CN113732757B CN202111102456.5A CN202111102456A CN113732757B CN 113732757 B CN113732757 B CN 113732757B CN 202111102456 A CN202111102456 A CN 202111102456A CN 113732757 B CN113732757 B CN 113732757B
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- Prior art keywords
- cushion block
- machine tool
- pressing plate
- base
- block body
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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
- B23Q3/061—Work-clamping means adapted for holding a plurality of workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a clamp for a machine tool cushion block, which comprises a base, wherein the upper end surface of one side of the base is in an inclined plane shape, a positioning boss is arranged on the other side of the base, a positioning hole is formed in the upper end surface of the base, a positioning pin shaft is correspondingly arranged in the positioning hole, the machine tool cushion block is sleeved on the positioning pin shaft in a matching mode, an inverted trapezoidal lower pressing plate is arranged between the machine tool cushion block and the positioning boss, and an upper pressing plate is arranged on one side of the upper plane of the lower pressing plate. The processing method comprises the following steps: s1: roughly turning an appearance outline of the tempered round bar material to enable the dimension of the appearance outline to be 0.3-0.5mm larger than the dimension required by a drawing, then carrying out heat treatment and finish turning, grinding a machined part to be equal in height by adopting a flat grinder according to the requirement of the drawing, and processing the machined part into a cushion block body; s2: and processing the two inclined planes at the upper end of the cushion block body to finish the processing of the cushion block of the machine tool. The invention realizes the automatic correction of the machined part and improves the machining precision and efficiency.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of manufacturing of numerical control machine tool basic parts, in particular to a clamp for a machining tool cushion block.
[ background of the invention ]
Along with the development of the industrial automation industry of machine tools in China, the structure upgrade and the technical progress of the machine tool industry have made greater development, which is also a new industrialization road transition for accelerating the realization of the sustainable development depending on the technical progress in China. The machine tool industry is a basic equipment industry for providing a working master machine for various fields of national economy in China and is also an important mark of national comprehensive competitive strength, and the numerical control machine tool belongs to high-end manufacturing equipment, is an important field of national culture and development strategic emerging industries, and has higher and higher requirements on various parts of the numerical control machine tool.
As shown in fig. 1 and 2, a machine tool shim requires a tapered surface 002 to be symmetrically formed on both sides of a shim body 001 and requires the height of each shim body 001 to be uniform. The existing processing method comprises the following steps: rough turning, heat treatment, finish turning, grinding and the like, and then clamping the cushion block body 001 on the dividing plate, and processing the inclined plane 002 by using a milling machine. Although the machining method can manufacture the cushion block of the machine tool, only one cushion block body 001 can be machined at a time, most of time is wasted on correction and clamping of a workpiece, machining efficiency is low, the symmetry degree of the inclined plane 002 is influenced by the precision of the dividing plate, symmetry precision is low, and machining precision is unstable.
[ summary of the invention ]
In view of the above, in order to overcome the defects of the prior art, the invention provides a fixture for processing a cushion block of a machine tool, by designing a processing fixture capable of positioning quickly, the time for correcting and clamping a workpiece is reduced, the processing efficiency is improved, and because the fixture can correct and position automatically, the processing precision is improved, and the processing quality is ensured.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a clamp for a cushion block of a processing machine tool comprises a base, wherein the upper end surface of one side of the base is in an inclined plane shape, and a positioning boss is arranged on the other side of the base; the positioning structure is characterized in that a plurality of positioning holes are formed in the upper end face of one side of the base in an inclined plane shape, positioning pin shafts are arranged in the positioning holes in a one-to-one correspondence mode, a machine tool cushion block is sleeved on the upper ends of the positioning pin shafts in a matched mode, an inverted trapezoidal lower pressing plate is arranged between the machine tool cushion block and the positioning bosses, and an upper pressing plate is arranged on one side of the upper plane of the lower pressing plate.
The two side surfaces of the upper end of the machine tool cushion block are symmetrically provided with an inclined surface, an included angle between the inclined surface and the upper end surface of the machine tool cushion block is in an inclined surface shape, the size of the included angle between the upper end surface of one side of the base and the inner included angle in the vertical direction and the size of the included angle between the upper end surface of the lower pressing plate and the side surfaces are all consistent, and the machine tool cushion block is ensured to be processed, and the processing angle of the inclined surface is consistent. The upper pressure plate is used for clamping the upper end surface of the machine tool cushion block (at the moment, the machine tool cushion block does not start to process an inclined surface); the lower pressing plate is used for clamping and positioning the machine tool cushion block with the machined side inclined plane, so that the machine tool cushion block is more convenient and reliable to position and clamp; one side face of the lower pressing plate is provided with avoidance grooves with the same number as the positioning holes, so that interference between the machine tool cushion block and the lower pressing plate is avoided, and the overall dimension of the whole clamp can be reduced.
The machining method of the machine tool cushion block comprises the following steps:
s1: roughly turning the hardened and tempered round bar to obtain an outline, enabling the outline dimension of the outline to be 0.3-0.5mm larger than the dimension required by a drawing, then carrying out heat treatment and finish turning, grinding a plurality of machined parts to obtain equal-height dimensions by adopting a surface grinding machine according to the drawing requirement, and machining the machined parts into a cushion block body;
s2: processing two inclined planes at the upper end of the cushion block body, namely finishing the processing of the cushion block of the machine tool;
the processing steps for processing the two side surfaces of the upper end of the cushion block body in the S2 are as follows:
s01: the base is arranged on a sliding supporting plate of the numerical control lathe, and the position of the base is corrected to ensure that the longitudinal direction of the base is vertical to the axial direction of a main shaft of the numerical control lathe;
s02: inserting the lower ends of the positioning pin shafts into the positioning holes, and sequentially sleeving the cushion block bodies in the S1 on the upper ends of the positioning pin shafts;
s03: then fastening the lower pressure plate on the base, and enabling the upper pressure plate to abut against the upper end face of the cushion block body, wherein the cushion block body is fixed;
s04: installing a milling cutter on a chuck of the numerically controlled lathe, starting the numerically controlled lathe, and rotating a main shaft of the numerically controlled lathe to drive the milling cutter to rotate; meanwhile, a sliding supporting plate of the numerical control lathe transversely and longitudinally moves according to a preset program to finish the processing of a first inclined plane of the cushion block body;
s05: when the cushion block body on the clamp is completely processed, loosening the lower pressing plate, rotating the cushion block body on the clamp to enable the first inclined surface of the cushion block body to face the positioning boss, horizontally rotating the lower pressing plate by 180 degrees, and fastening the lower pressing plate again, wherein the upper pressing plate is close to the positioning boss, and the cushion block body is automatically corrected under the action of the lower pressing plate (the first inclined surface of the cushion block body is tightly attached to the side surface of the lower pressing plate) and is fixed through the downward pressing of the lower pressing plate;
s06: and finishing the machining of the second inclined plane of the cushion block body by the numerical control lathe according to a preset program, loosening the lower pressing plate after the machining is finished, taking away the machined cushion block body, sleeving the cushion block body to be machined on the upper end of the positioning pin shaft, and thus circularly machining the cushion block of the machine tool.
Preferably, the upper pressure plate is provided with compression adjusting screws, the number of which is consistent with that of the positioning holes, the positions of the compression adjusting screws correspond to that of the machine tool cushion block one by one, the lower end surfaces of the compression adjusting screws are abutted against the upper end surface of the machine tool cushion block, and the machine tool cushion block is fixed on the base in a one-to-one manner.
Furthermore, a connecting threaded hole is formed in the base, a connecting through hole is formed in the lower pressing plate, a connecting screw is arranged in the connecting through hole, the lower pressing plate is fastened on the base through the connecting through hole, the connecting screw and the connecting threaded hole, clamping of the cushion block of the machine tool is achieved, and machining is facilitated.
Further, mounting through holes are formed in two ends of the base, and the base is fixed on a sliding supporting plate of the numerical control lathe through the mounting through holes.
Further, in order to avoid the phenomenon that the height of the cushion block body is inconsistent (errors caused by machining) and clamping cannot be performed (because the upper pressure plate is a whole plate plane, if the cushion block body is short, the cushion block body cannot be stressed and clamped), in step S03, the compression adjusting screws are abutted against the upper end face of the cushion block body, and at the moment, the cushion block body is fixed on the base through the compression adjusting screws in a one-to-one manner.
The invention has the beneficial effects that: (1) The original processing mode is changed (the original processing mode is that the two inclined surfaces of the cushion block body are processed by utilizing the matching of the milling machine and the dividing plate), a plurality of cushion block bodies can be clamped at one time, and the processing efficiency is improved; (2) The lower pressing plate with the inverted trapezoidal structure is arranged, so that the first processing inclined plane of the cushion block body is tightly attached to the side face of the lower pressing plate, automatic correction of the second to-be-processed inclined plane of the cushion block body is realized, the step of correction is reduced while the symmetrical precision of the two processing inclined planes is improved, and the processing efficiency is further improved; (3) Through setting up the multiunit compress tightly adjusting screw, it can one to one with the cushion body is fixed on the base to avoid the phenomenon that the height of cushion body is inconsistent and can't press from both sides tightly produces.
[ description of the drawings ]
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a perspective view of a machine tool block;
FIG. 2 is a plan view of a machine tool block;
FIG. 3 is a schematic perspective view of a first inclined plane of a cushion block body in a state to be machined according to the present invention;
FIG. 4 is a cross-sectional view of a first inclined surface of the spacer body according to the present invention;
FIG. 5 is a schematic perspective view of a second inclined surface of the spacer body according to the present invention;
FIG. 6 is a cross-sectional view of a second inclined surface of the spacer body according to the present invention;
fig. 7 is a schematic structural diagram of a lower pressure plate in the patent of the invention.
In the figure, 001, a cushion block body 002, an inclined plane 101, a base 102, a positioning boss 103, a positioning hole 104, a positioning pin shaft 105, a lower pressing plate 106, an upper pressing plate 107, a compression adjusting screw 108, an avoiding groove 109, a connecting threaded hole 110, a connecting through hole 111, a connecting screw 112, an installation through hole 113 and a sliding supporting plate.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 3 to 7, a fixture for processing a machine tool cushion block includes a base 101, an upper end surface of one side of the base 101 is in an inclined plane shape, and a positioning boss 102 is disposed on the other side of the base 101; nine positioning holes 103 are formed in the upper end face of one side of the base 101 in an inclined plane shape, positioning pin shafts 104 are correspondingly arranged in the positioning holes 103, an inverted trapezoidal lower pressing plate 105 is arranged on the inner side of the positioning boss 102, and an upper pressing plate 106 is arranged on one side of the upper plane of the lower pressing plate 105.
When the machine tool cushion block is manufactured, an inclined plane 002 needs to be symmetrically processed on two side surfaces of the upper end of the machine tool cushion block, an included angle alpha between the inclined plane 002 and the upper end surface of the machine tool cushion block, an included angle beta between the upper end surface of one side of the base 101 and the vertical direction, and an included angle delta between the upper end surface of the lower pressing plate 105 and the side surfaces have the following size relations: α = β = δ. The angle size of the oblique plane 002 can ensure that the machining angles of the oblique plane 002 to be machined on the cushion block of the machine tool are consistent.
Nine groups of compression adjusting screws 107 are arranged on the upper pressure plate 106, and the positions of the compression adjusting screws 107 correspond to the positions of the machine tool cushion blocks to be machined, which are fixedly installed. When the device is used, the lower end surface of the compression adjusting screw 107 is abutted against the upper end surface of the machine tool cushion block, and the machine tool cushion block is fixed on the base 101 one by one.
As shown in fig. 7, in order to avoid interference between the machine tool pad and the lower platen 105 and reduce the overall dimension of the entire clamp, nine escape grooves 108 are also provided on one side surface of the lower platen 105.
The base 101 is provided with a connecting threaded hole 109, the lower pressing plate 105 is provided with a connecting through hole 110, a connecting screw 111 is arranged in the connecting through hole 110, the lower pressing plate 105 passes through the connecting through hole 110, the connecting screw 111 and the connecting threaded hole 109, and the machine tool cushion block is clamped and convenient to process.
Two ends of the base 101 are provided with mounting through holes 112, and the base 101 is fixed on a sliding supporting plate 113 of the numerically controlled lathe through the mounting through holes 112.
Meanwhile, in order to better utilize the clamp in the technical scheme, the invention also provides a machining method for machining a cushion block of a machine tool, which comprises the following steps:
s1: roughly turning the hardened and tempered round bar to obtain an outline, enabling the outline dimension of the outline to be 0.3-0.5mm larger than the dimension required by a drawing, then carrying out heat treatment and finish turning, grinding a plurality of machined parts to obtain equal-height dimensions by adopting a plane grinder according to the drawing requirement, and machining to obtain a cushion block body 001;
s2: and processing the two inclined planes 002 at the upper end of the cushion block body 001, namely finishing the processing of the cushion block of the machine tool.
The processing steps for processing the two side faces of the upper end of the cushion block body 001 in the step S2 are as follows:
s01: installing a base 101 on a sliding supporting plate of a numerically controlled lathe, and correcting the position of the base 101 to enable the longitudinal direction of the base 101 to be perpendicular to the axial direction of a spindle of the numerically controlled lathe, so that the correction is finished;
s02: inserting nine positioning pin shafts 104 into the positioning holes 103, and sequentially sleeving the cushion block bodies 001 in the S1 on the upper ends of the positioning pin shafts 104;
s03: then, the lower pressing plate 105 is fastened on the base 101, the upper pressing plate 106 is located on the upper end face of the cushion block body 001, the compression adjusting screw 107 is screwed, the compression adjusting screw 107 is abutted against the upper end face of the cushion block body 001, and at the moment, the cushion block body 001 is fixed on the base through the compression adjusting screw 107 in a one-to-one manner;
s04: installing a milling cutter on a chuck of the numerically controlled lathe, starting the numerically controlled lathe, and rotating a main shaft of the numerically controlled lathe to drive the milling cutter to rotate; meanwhile, a sliding supporting plate of the numerical control lathe moves transversely and longitudinally according to a preset program to finish the processing of a first inclined plane 002 of the cushion block body 001, and the numerical control lathe is closed;
s05: when the cushion block body 001 on the clamp is completely processed, the lower pressing plate 105 is loosened, the cushion block body 001 on the clamp is rotated, the first inclined surface of the cushion block body 001 faces the positioning boss 102, the lower pressing plate 105 is horizontally rotated by 180 degrees, the lower pressing plate 105 is fastened again, at the moment, the upper pressing plate 106 is close to the positioning boss 102, and the cushion block body 001 is automatically corrected under the action of the lower pressing plate and is fixed through the downward pressing of the lower pressing plate 105;
s06: at the moment, the numerically controlled lathe is started again, the machining of the second inclined plane 002 of the cushion block body 001 is completed according to a preset program, the lower pressing plate 105 can be loosened after the machining is completed, the machined cushion block body 001 is taken away, the cushion block body 001 to be machined is sleeved on the upper end of the positioning pin shaft 104, and the machine tool cushion block can be machined in a circulating mode.
The invention changes the original processing mode, can clamp a plurality of cushion block bodies 001 at one time, realizes the automatic correction of the cushion block bodies 001, improves the symmetrical precision of two processed inclined planes 002, reduces the step of correction and greatly improves the processing efficiency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The clamp for processing the cushion block of the machine tool is characterized by comprising a base, wherein the upper end surface of one side of the base is in an inclined plane shape, and a positioning boss is arranged on the other side of the base; the upper end face of one side of the base in an inclined plane shape is provided with a plurality of positioning holes, positioning pin shafts are correspondingly arranged in the positioning holes one by one, a machine tool cushion block is sleeved at the upper end of each positioning pin shaft in a matched mode, an inverted trapezoidal lower pressing plate is arranged between the machine tool cushion block and the positioning boss, an upper pressing plate is arranged on one side of the upper plane of the lower pressing plate, and avoidance grooves with the quantity being consistent with that of the positioning holes are formed in one side face of the lower pressing plate;
two side surfaces of the upper end of the machine tool cushion block are symmetrically provided with an inclined surface, and the included angle between the inclined surface and the upper end surface of the machine tool cushion block, the inner included angle between the upper end surface of one side of the base in the shape of the inclined surface and the vertical direction, and the included angle between the upper end surface of the lower pressure plate and the side surface are all consistent in size;
the machining steps of the machine tool cushion block comprise:
s1: roughly turning the hardened and tempered round bar to obtain an outline, enabling the outline dimension of the outline to be 0.3-0.5mm larger than the dimension required by a drawing, then carrying out heat treatment and finish turning, grinding a plurality of machined parts to obtain equal-height dimensions by adopting a surface grinding machine according to the drawing requirement, and machining the machined parts into a cushion block body;
s2: processing two inclined planes at the upper end of the cushion block body, namely finishing the processing of the cushion block of the machine tool;
and the processing steps for processing the two side surfaces of the upper end of the cushion block body in the step S2 are as follows:
s01: the base is arranged on a sliding supporting plate of the numerical control lathe, and the position of the base is corrected to ensure that the longitudinal direction of the base is vertical to the axial direction of a main shaft of the numerical control lathe;
s02: inserting the lower ends of the positioning pin shafts into the positioning holes, and sequentially sleeving the cushion block bodies in the S1 on the upper ends of the positioning pin shafts;
s03: fastening the lower pressing plate on the base, and enabling the upper pressing plate to abut against the upper end face of the cushion block body, wherein the cushion block body is fixed;
s04: installing a milling cutter on a chuck of the numerically controlled lathe, starting the numerically controlled lathe, and rotating a main shaft of the numerically controlled lathe to drive the milling cutter to rotate; meanwhile, a sliding supporting plate of the numerical control lathe transversely and longitudinally moves according to a preset program to finish the processing of a first inclined plane of the cushion block body;
s05: when the cushion block body on the clamp is completely processed, loosening the lower pressing plate, rotating the cushion block body on the clamp to enable the first inclined surface of the cushion block body to face the positioning boss, horizontally rotating the lower pressing plate by 180 degrees, and fastening the lower pressing plate again, wherein the upper pressing plate is close to the positioning boss, and the cushion block body is automatically corrected under the action of the lower pressing plate and is fixed through the pressing of the lower pressing plate;
s06: and finishing the machining of the second inclined plane of the cushion block body by the numerical control lathe according to a preset program, loosening the lower pressing plate after the machining is finished, taking away the machined cushion block body, sleeving the cushion block body to be machined on the upper end of the positioning pin shaft, and thus circularly machining the cushion block of the machine tool.
2. The clamp for processing the machine tool cushion block as claimed in claim 1, wherein the upper pressure plate is provided with compression adjusting screws, the number of the compression adjusting screws is consistent with that of the positioning holes, the positions of the compression adjusting screws correspond to that of the machine tool cushion block one to one, and the lower end surface of each compression adjusting screw is abutted against the upper end surface of the machine tool cushion block.
3. The clamp for processing the cushion block of the machine tool as claimed in claim 1, wherein the base is provided with a connecting threaded hole, the lower pressing plate is provided with a connecting through hole, a connecting screw is arranged in the connecting through hole, and the lower pressing plate is fastened on the base through the connecting through hole, the connecting screw and the connecting threaded hole.
4. A jig for a processing machine tool block as set forth in claim 1 or 3, wherein both ends of said base are provided with mounting through holes.
5. The jig for processing a spacer for a machine tool according to claim 2, wherein the pressure adjusting screws are abutted against the upper end surface of the spacer body in step S03, and the spacer body is fixed to the base by the pressure adjusting screws one by one.
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| CN202111102456.5A CN113732757B (en) | 2021-09-19 | 2021-09-19 | A anchor clamps for machine tool cushion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111102456.5A CN113732757B (en) | 2021-09-19 | 2021-09-19 | A anchor clamps for machine tool cushion |
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| CN113732757A CN113732757A (en) | 2021-12-03 |
| CN113732757B true CN113732757B (en) | 2022-11-04 |
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| CN114770142B (en) * | 2022-06-20 | 2022-09-16 | 泉州华中科技大学智能制造研究院 | Thrust wheel side cap processing lines |
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| CN109202491A (en) * | 2018-11-20 | 2019-01-15 | 陕西海力特精密机械有限公司 | Process the linear orientation clamping tooling of chuck jaws |
| CN110877218A (en) * | 2019-12-16 | 2020-03-13 | 安徽信息工程学院 | Clamp suitable for drilling multiple end covers |
| CN211540369U (en) * | 2020-01-19 | 2020-09-22 | 重庆辉健机械有限责任公司 | Clamp for drilling drain hole of steering knuckle |
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| CN113732757A (en) | 2021-12-03 |
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