CN113199417A - Floating steel ball supporting clamp and using method thereof - Google Patents
Floating steel ball supporting clamp and using method thereof Download PDFInfo
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- CN113199417A CN113199417A CN202110394083.7A CN202110394083A CN113199417A CN 113199417 A CN113199417 A CN 113199417A CN 202110394083 A CN202110394083 A CN 202110394083A CN 113199417 A CN113199417 A CN 113199417A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
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Abstract
The invention discloses a floating steel ball supporting clamp and a using method thereof, which are used for realizing floating support of shell parts and comprise a bottom plate, wherein the bottom plate is provided with a first supporting component for supporting the bottom of the part, a positioning component for positioning the part, a fixing component for fixing and limiting the part and a pressing plate component; the part floating support device further comprises a second support assembly arranged on the bottom plate and used for floating support of the top of the part, and the support assembly, the positioning assembly, the fixing assembly and the pressing plate assembly are spaced from each other and arranged around the second support assembly; the second supporting component comprises a supporting column, a rotary adjusting component and a floating supporting component are arranged on the supporting seat, the floating supporting component is in contact with the inner wall of the top end of the part, and floating supporting is carried out through the rotary adjusting component. The fixture effectively applies the principle that rolling friction is approximately neglected, so that acting forces in the floating support action process are mutually offset, the deformation of parts is effectively reduced, and the support failure caused by vibration in the machining process is eliminated; the screwing process is light and labor-saving.
Description
Technical Field
The invention relates to the technical field of measuring tools and checking tools, in particular to a floating steel ball supporting clamp and a using method thereof.
Background
The clamp is widely applied to mechanical and non-mechanical machining processes, and has the greatest influence on the quality of a machined part except a machine tool. At present, the types of clamps used at home and abroad are as follows: the combined clamp comprises a manual clamp, a hydraulic clamp, an electric clamp, a pneumatic clamp, an electromagnetic hydraulic clamp and the like.
In China and abroad, the manual clamp is still widely applied in the small-batch production stage of single-piece, small-batch and batch products. It has the following significant advantages: the clamp has short design time, short manufacturing period, low comprehensive cost and stronger flexibility (easy modification); however, the manual clamp has the following problems in use: the quality of the parts is unstable due to long operation time, large variation range of clamping force, poor system rigidity when the parts are large, difficulty in controlling floating supporting force and the like. The technical problem of unstable quality is that the floating supporting force is difficult to control when the size of the part is large.
Disclosure of Invention
The invention provides a floating steel ball supporting clamp and a using method thereof, which are researched objects aiming at the difficult problems that a manual clamp is unreliable in floating support and cannot realize floating support in a shell part with a larger machining size.
In order to realize the task, the invention adopts the following technical scheme:
a floating steel ball supporting clamp is used for realizing floating support of a shell part and comprises a bottom plate, wherein a first supporting assembly used for supporting the bottom of the part, a positioning assembly used for positioning the part, a fixing assembly used for fixing and limiting the part and a pressing plate assembly are arranged on the bottom plate;
the part floating support device is characterized by also comprising a second support assembly arranged on the bottom plate and used for floating supporting the top of the part, wherein the support assembly, the positioning assembly, the fixing assembly and the pressing plate assembly are mutually spaced and arranged around the second support assembly;
the second supporting component comprises a supporting seat, wherein a rotary adjusting component and a floating supporting component are arranged on the supporting seat, the floating supporting component is in contact with the inner wall of the top end of the part, and floating supporting is carried out through the rotary adjusting component.
Furthermore, a first channel of the rotation adjusting assembly, a second channel of the floating support assembly and a third channel of the floating support assembly are arranged in the supporting seat in a penetrating mode, and the first channel, the second channel and the third channel are communicated with the unified through hole;
the included angle between the axis of the first channel and the horizontal plane is alpha 1, and the value range of the alpha 1 is 0-15 degrees;
the included angle between the second channel and the third channel is alpha 2, and the value range of the alpha 2 is 0-180 degrees.
Specifically, the value of α 1 is 8 °, and the value of α 2 is 96 °.
Furthermore, the inner wall of the first channel is provided with internal threads, a first tightening rod and a second tightening rod are coaxially arranged in the first channel, and the first tightening rod and the second tightening rod can rotate in the first channel through the threads to be tightened or loosened;
the height of the first tightening rod from the horizontal plane is higher than that of the second tightening rod from the horizontal plane;
a movable first floating support rod is arranged in the second channel, a movable second floating support rod is arranged in the third channel, 3D steel balls and a D steel ball are arranged in the second channel at the bottom of the first floating support rod in a tangent mode, and the arrangement mode and the arrangement quantity of the D steel balls and the D steel balls in the third channel are the same as those of the second channel;
furthermore, 2D steel balls are axially arranged in the first channel close to the first tightening rod, and D1 steel balls for lifting the D steel balls are arranged at the bottom of the communication part of the first channel, the second channel and the third channel;
the first tightening rod is adjusted in a rotating mode, thrust is applied to the D steel balls in the first channel, then relative force is generated on the D steel balls in the second channel and the third channel, and then the first floating support rod and/or the second floating support rod move in the channel direction, and the floating support positioning effect on the parts is achieved.
Specifically, the diameter of the steel ball D is larger than that of the steel ball D, and the diameter of the steel ball D is larger than or equal to that of the steel ball D1;
the diameter of the steel ball D and the diameter of the steel ball D meet the following requirements: D/D is not less than 2.414 and not more than 7.5mm and not more than 15mm, D is not less than 2.574mm and not more than 7.5mm, and D + D is not less than 15;
the diameter of the d1 steel ball satisfies 3mm < d1 < 12 mm.
More specifically, the diameter of the steel ball D is 12mm, the diameter of the steel ball D is 5mm, and the diameter of the steel ball D1 is 5 mm.
Further, the first floating support rod can be fixed in the second channel through a fifth screw, and the second floating support rod can be fixed in the third channel through a fifth screw;
and the first floating support rod and the second floating support rod are respectively provided with a limiting table.
Specifically, the first support assembly comprises a plurality of first support blocks and second support blocks which are perpendicular to the base plate, the positioning assembly comprises a positioning block, and a cylindrical pin and a diamond-shaped pin which are matched with the parts for positioning are arranged on the positioning block;
the fixing component comprises a hollow supporting block arranged perpendicular to the base plate, a hook head pressing plate penetrates through the hollow supporting block, a sliding groove is formed in the middle of the hook head pressing plate and can slide on a first stud fixed perpendicular to the base plate along the horizontal direction, a first screw is arranged at the bottom of one end of the hook head pressing plate to support, and the other end of the hook head pressing plate is pressed on the inner side of the bottom of the part.
The invention also discloses a using method of the floating steel ball supporting clamp, which comprises the following steps:
firstly, placing a part to be measured on a first supporting component and a positioning component;
secondly, fixing and pressing the part by adopting a fixing component and a pressing plate component;
and thirdly, manually operating the rotary adjusting assembly to enable the steel ball D to move, pushing the steel ball D to move to enable the floating supporting assembly to move to be in contact with the part, and simultaneously lifting or independently lifting any one or two floating supporting rods in the floating supporting assembly to realize the positioning of the part at multiple positions.
Compared with the prior art, the invention has the following technical effects:
the invention provides a floating steel ball supporting clamp which is a breakthrough and is developed based on the difficulty that floating supporting force is not easy to control. Has the following advantages:
firstly, the principle that rolling friction is approximately neglected is effectively applied, acting force is mutually offset in the floating support action process through reasonable selection of the diameters of the steel balls D and the steel balls D, the floating support rigidity is increased through internal consumption, the acting force of the floating support on a supported part is reduced, and part deformation is effectively reduced;
secondly, through the application of the fine thread arranged in the first channel of the supporting seat, the supporting failure caused by vibration in the machining process is eliminated;
thirdly, the design angle of the axes of the first tightening rod and the second tightening rod is 8 degrees through the first channel, so that the tightening process is light and labor-saving;
fourthly, the problem that floating support cannot be completed due to clamping stagnation of the steel balls is thoroughly solved through the application of the double tightening rods.
Drawings
FIG. 1 is a schematic perspective view of a floating steel ball support fixture according to the present invention;
FIG. 2 is a perspective view of the supporting seat of the floating steel ball supporting clamp according to the present invention;
FIG. 3 is a schematic structural view of each steel ball of the present invention;
FIG. 4 is a cross-sectional view of a second support assembly of the present invention;
FIG. 5 is a top view of the support base of the present invention;
FIG. 6 is a cross-sectional view of the present invention taken along the support base U-U;
FIG. 7 is a cross-sectional view of the present invention taken along the support seat V-V;
FIG. 8 is a cross-sectional view of the present invention taken along the support base W-W;
FIG. 9 is a schematic view of the floating support bar of the present invention;
FIG. 10 is a schematic view of the hook head pressing plate of the present invention;
FIG. 11 is a schematic front view of the floating steel ball support fixture of the present invention in use with a part;
FIG. 12 is a schematic back view of the floating ball support fixture of the present invention in use with a part;
the reference numbers in the figures represent:
1. a base plate; 2. a first support assembly; 2-1, a first supporting block; 2-2, a second support block; 3. a positioning assembly; 3-1, positioning blocks; 3-1-1, cylindrical pin; 3-1-2, diamond pins; 4. a fixing assembly; 4-1, hollow supporting block; 4-2, hook head pressing plates; 4-2-1, a chute; 4-2-2, a vertical plate; 4-2-3, pressing plate; 4-3, a first stud; 4-4, a first screw; 4-5, a nut; 5. a pressure plate component 5-1, a flat pressure plate; 5-2, a second stud; 6. a second support assembly; 6-1, a base; 6-2, supporting columns; 6-2-1, a second screw; 6-3, a support seat; 6-3-1, third screw; 6-4, rotating the adjusting component; 6-4-1, a first tightening rod; 6-4-2, a second tightening rod; 6-4-3, a first channel; 6-4-4, through holes; 6-5, floating support components; 6-5-1, a first floating support rod; 6-5-2, a second floating support rod; 6-5-3, a second channel; 6-5-4, a third channel; 6-5-5, a limit table; 6-5-6, rod body; 6-6, a fourth screw; 7. a hoisting ring; 8. and (4) parts.
Detailed Description
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.
It should be noted that, when the present invention is described in an orientation, the terms "upper", "lower", "top", "bottom", and the like, which are used to indicate an orientation or positional relationship, are merely used to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, "inner" and "outer" refer to the inner core of the corresponding component profile, and the terms should not be construed as limiting the present invention.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
The invention discloses a floating steel ball supporting clamp which is used for realizing floating support of a shell part and comprises a bottom plate 1, wherein a first supporting component 2 used for supporting the bottom of the part, a positioning component 3 used for positioning the part, a fixing component 4 used for fixing and limiting the part and a pressing plate component 5 are arranged on the bottom plate 1;
in the embodiment, the device further comprises a second supporting component 6 which is arranged on the bottom plate 1 and used for carrying out floating support on the top of the part, and the first supporting component 2, the positioning component 3, the fixing component 4 and the pressure plate component 5 are arranged mutually and around the second supporting component 6 at intervals;
referring to fig. 2-4, the second supporting assembly 6 includes a supporting seat 6-3, a rotation adjusting assembly 6-4 and a floating supporting assembly 6-5 are disposed on the supporting seat 6-3, the floating supporting assembly 6-5 contacts with the inner wall of the top end of the part, and floating supporting is performed through the rotation adjusting assembly 6-4.
Furthermore, a first channel 6-4-3 of the rotary adjusting component 6-4, a second channel 6-5-3 of the floating supporting component 6-5 and a third channel 6-5-4 of the floating supporting component 6-5 are arranged in the supporting seat 6-3 in a penetrating mode, and the first channel 6-4-3, the second channel 6-5-3 and the third channel 6-5-4 are communicated with the same through hole 6-4-4;
as shown in fig. 5-8, in order to prevent the D steel ball from sliding out along the first channel 6-4-3 and from causing the inability to float the D steel ball in the second channel 6-5-3 and the third channel 6-5-4, the angle α 1 is not equal to 0 °; in order to prevent overlarge tightening force during tightening and avoid interference with a positioned part during tightening, B is more than 0 degree and less than or equal to 15 degrees, an included angle between the axis of the first channel 6-4-3 and the horizontal plane is alpha 1, and the value range of the alpha 1 is 0-15 degrees; in a preferred embodiment, α 1 is 8 °.
The included angle between the second channel 6-5-3 and the third channel 6-5-4 is alpha 2, and the value range of the alpha 2 is 0-180 degrees. According to the positioning principle and the structure of the positioned workpiece, the supporting rod can not return to the position for preventing floating. In order to obtain a wider positioning area and ensure that the positioned part can smoothly enter the floating positioning device, the value of alpha 2 is 96 degrees.
Furthermore, the inner wall of the first channel 6-4-3 is provided with internal threads, the first tightening rod 6-4-1 and the second tightening rod 6-4-2 are coaxially arranged in the first channel 6-4-3, and the first tightening rod 6-4-1 and the second tightening rod 6-4-2 can rotate in the first channel 6-4-3 through the threads to be tightened or loosened, so that the D steel ball in the first channel 6-4-3 is further pushed.
The height of the first tightening rod 6-4-1 from the horizontal plane is higher than that of the second tightening rod 6-4-2 from the horizontal plane;
referring to FIG. 3, a movable first floating support rod 6-5-1 is arranged in a second channel 6-5-3, a movable second floating support rod 6-5-2 is arranged in a third channel 6-5-4, 3D steel balls and a D steel ball are arranged in the second channel 6-5-3 at the bottom of the first floating support rod 6-5-1 in a tangent mode, and the arrangement modes and the arrangement quantity of the D steel balls and the D steel balls in the third channel 6-5-4 are the same as those of the second channel 6-5-3;
2D steel balls are axially arranged in the first channel 6-4-3 close to the first tightening rod 6-4-1, and D1 steel balls for lifting the D steel balls are arranged at the bottom of the communication part of the first channel 6-4-3, the second channel 6-5-3 and the third channel 6-5-4;
the first tightening rod 6-4-1 is adjusted in a rotating mode, thrust is applied to the D steel ball in the first channel 6-4-3, then opposite force is generated on the D steel ball in the second channel 6-5-3 and the third channel 6-5-4, and then the first floating support rod 6-5-1 and/or the second floating support rod 6-5-2 move along the direction of the channel where the first floating support rod and/or the second floating support rod are/is located, and floating support and positioning effects on parts are achieved.
Furthermore, the diameter of the steel ball D is larger than that of the steel ball D, and the diameter of the steel ball D is larger than or equal to that of the steel ball D1;
the diameter of the steel ball D and the diameter of the steel ball D meet the following requirements: D/D is not less than 2.414 and not less than 15mm when D is more than 7.5mm and not more than 7.5mm when D is more than 2.574mm and not more than 15mm and D + D. The device can ensure that the torque is smaller and the operation is light when the floating support is screwed down, ensures that the D steel ball and the D steel ball are effectively contacted, and avoids the situation of front and back transposition in the working process.
In a preferred embodiment, the diameter of the steel ball D is 12mm, the diameter of the steel ball D is 5mm, and the diameter of the steel ball D1 is 5 mm.
When the steel ball D and the steel ball D are tangent to the floating support rod at the same time, the relation exists: sin (gamma) ═ 15mm (D/2-D/2)/(D/2+ D/2), (three points of two sphere centers of the D and D spheres and a point which passes through the sphere center of the D and is perpendicular to the axis of the support rod are right-angled triangles, gamma represents an included angle between the axis of the sphere center of the D and the axis of the support rod, the D and the D spheres, and the fixed value is that the support rod matching diameter → gamma is 45 DEG), and D is calculated to be approximately equal to 2.574 mm; in order to ensure that the steel ball is in contact with the floating support rod D and the steel ball is not in contact with the floating support rod D, the distance between the steel ball and the floating support rod D is less than 2.574mm, acting force can be counteracted mutually in the floating support action process, the floating support rigidity is increased through 'internal consumption', the acting force of the floating support on a supported part is reduced, and the part deformation is effectively reduced; if D is 2.574mm, the D ball and the D ball are simultaneously contacted with the floating support rod.
The pressure angle between the steel balls is beta, when the beta is 45 degrees, the D/D is 2.414, and the beta is not more than 45 degrees to obtain smaller floating supporting force and larger floating supporting rigidity (the mutual energy consumption of the steel balls inside), so that the D/D is not less than 2.414.
Specifically, the diameter of the d1 steel ball meets the requirement that the d1 is more than 3mm and less than 12 mm. Can be adjusted by the second tightening rod 6-4-2 before and after movement to avoid d1The steel ball is clamped in the motion space of the steel ball D, and the distance is 5mm at this time.
Further, the first floating support bar 6-5-1 may be fixed in the second channel 6-5-3 by a fourth screw 6-6, and the second floating support bar 6-5-2 may be fixed in the third channel 6-5-4 by a fourth screw 6-6. Therefore, the total number of steel balls D is 8, the total number of steel balls D is 2, and the number of steel balls D is three1And 1 in total.
In this embodiment, as shown in fig. 7 and 9, the first floating support bar 6-5-1 and the second floating support bar 6-5-2 are both provided with a limit stop 6-5-5, and the limit stops 6-5-5 can prevent the steel ball D from being pushed out by too large a distance in the process of positioning the part to damage the part, and on the other hand, the clamp is inclined to be knocked down to prevent accidents, so that the first floating support bar 6-5-1 and the second floating support bar 6-5-2 fall off. The first floating support rod 6-5-1 is provided with a limit table 6-5-5 by cutting a plane, and the diameter of the rod body 6-5-6 of the first floating support rod 6-5-1 is
Can be easily ejected out of the second channel 6-5-3, and the diameter of the upper part of the rod body 6-5-6 of the first floating supporting rod 6-5-1 is
Inner diameter of the second channel 6-5-3
The matching is carried out in a matching way,
also having a diameter of 21mm, the second channel 6-5-3 further comprises a channel having a diameter of 15mm
Used for placing the D steel ball.
With reference to the structure diagram of the supporting seat 6-3 in fig. 5 and 7, the supporting seat 6-3 is a cylinder with a section, the first channel 6-4-3, the second channel 6-5-3 and the third channel 6-5-4 are all cylindrical, and the supporting seat 6-3 is fixed to the bottom plate 1 through a supporting column 6-2 arranged perpendicular to the bottom plate 1. The supporting column 6-2 and the base 6-1 are fixed through a second screw 6-2-1, and the supporting column 6-2 and the supporting seat 6-3 are fixed through a third screw 6-3-1.
The top end of the supporting seat 6-3 is provided with a surface A and a surface B, wherein the surface A is parallel to the length direction of the fourth screw 6-6 and is vertical to the axis of the first floating supporting rod 6-5-1, the surface B is parallel to the surface A, and the fourth screw 6-6 works in the aspect of arrangement of the surface B. The arrangement of the second floating support rod 6-5-2 of the support seat 6-3 is the same, the angle alpha 3 between the two mirror-symmetrically arranged A surfaces is 84 degrees, and the angle alpha 4 between the two mirror-symmetrically arranged B surfaces is 84 degrees.
In this embodiment, the first supporting assembly 2 includes a first supporting block 2-1 and a second supporting block 2-2 disposed perpendicular to the bottom plate 1, specifically, in this embodiment, the number of the first supporting blocks 2-1 is 5, and the number of the second supporting blocks 2-2 is 2, which are different in size and are adjusted according to the structural size of the component.
The positioning component 3 comprises a positioning block 3-1, and a cylindrical pin 3-1-1 and a diamond pin 3-1-2 which are matched with the part for positioning are arranged on the positioning block 3-1.
Referring to fig. 10, the fixing component 4 comprises a hollow supporting block 4-1 arranged on the vertical base plate 1, a hook head pressing plate 4-2 penetrates through the hollow supporting block 4-1, a sliding groove 4-2-1 is arranged in the middle of the hook head pressing plate 4-2, the sliding groove 4-2-1 can slide on a first stud 4-3 fixed on the vertical base plate 1 along the horizontal direction, a first screw 4-4 is arranged at the bottom of one end of the hook head pressing plate 4-2 for supporting, the bottom of the first screw 4-4 is fixed with the base plate 1 through a nut 4-5, and the other end of the hook head pressing plate 4-2 is pressed on the inner side of the bottom of the part. Specifically, the device comprises a vertical plate 4-2-3 which is vertically arranged and pressure plates 4-2-3 which are reversely arranged, wherein the number of the hook pressure plates 4-2 is 4, and the hook pressure plates are respectively pressed at 4 positions at the bottom of the part.
In addition, set up rings on the bottom plate 1, make things convenient for external equipment to snatch the removal.
The assembly process of the floating steel ball support clamp comprises the following steps:
firstly, rotating the second tightening rod 6-4-2 through threaded connection until the head part is exposed out of the through hole 6-4-4 in the first channel 6-4-3;
secondly, placing a steel ball d1, and slightly knocking the steel ball d1 to enable the steel ball to be in contact with the end face of the second tightening rod 6-4-2;
thirdly, the second tightening rod 6-4-2 is rotated anticlockwise to slowly withdraw to a position 1/2-3/4 of the D1 steel ball to be hidden, and the motion space of the D steel ball is prevented from being influenced;
fourthly, 2D steel balls are loaded from the 6-4-1 side of the first tightening rod and are in contact with the D1 steel ball;
fifthly, screwing in the first tightening rod 6-4-1 until the first tightening rod is contacted with the steel ball D, and not pushing the steel ball D to rise along the steel ball D1;
sixthly, respectively loading 3D steel balls from the sides of the first floating support rod 6-5-1 and the second floating support rod 6-5-2;
seventhly, respectively loading 1 d steel balls from the side of the first floating support rod 6-5-1 and the second floating support rod 6-5-2;
eighthly, arranging a first floating support rod 6-5-1 and a second floating support rod 6-5-2;
and step nine, screwing in a fifth screw to realize limiting and anti-slipping.
With reference to fig. 11 and 12, the present invention also discloses a method for using the floating steel ball supporting clamp, which includes:
firstly, inserting a positioning pin hole of a part 8 into a cylindrical pin 3-1-1 and a diamond pin 3-1-2 to complete positioning, and placing the positioning pin on a first support component 2 and a positioning component 3;
secondly, fixing and pressing the part by using a fixing component 4 and a pressing plate component 5;
and thirdly, manually operating the rotary adjusting component 6-4 to enable the steel ball D to move, pushing the steel ball D to move to enable the floating supporting component 6-5 to move to be in contact with the part, wherein any one or two floating supporting rods in the floating supporting component 6-5 can be lifted simultaneously or independently and supported in an inner cavity of the processed shell, and thus, the parts can be positioned at multiple positions. During use, the D steel balls in the first channel 6-4-3 can be ejected out of the through holes 6-4-4 by 1 at most, and another D steel ball is still in the first channel 6-4-3.
After the machining is finished, manually operating the first tightening rod 6-4-1 anticlockwise, loosening the steel ball, descending the floating support rod and finishing the force unloading of the floating support; and manually operating, disassembling the acting force of each pressing plate, dropping out the machined part, and finishing a working cycle.
In this embodiment, the steel ball D1 only plays a role of lifting the steel ball D, and does not move along each hole; the stroke of movement of the first tightening rod 6-4-1 cannot exceed 12mm each time. If the first tightening rod 6-4-1 cannot move or the floating support rod cannot be lifted, slightly adjusting the second tightening rod 6-4-2 to enable the D1 steel ball to slide into a proper position, and avoiding the D1 steel ball from blocking a D steel ball movement channel; under the action of the steel ball D, the 2 floating support rods can be lifted simultaneously, and the floating support rod at one end can be lifted up and limited by the fifth screw, and then the floating support rod at the other end can be lifted up.
When the part 8 is placed and fixed, the part can be placed according to the positions shown in fig. 11 and 12, and the round hole of the part close to the first tightening rod 6-4-1 in fig. 11 can limit the person to a certain extent during manual operation, so that the part 8 is prevented from being damaged due to overlarge watching rotation range.
The above are only preferred embodiments of the present invention, and are not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A floating steel ball supporting clamp is used for realizing floating support of a shell part (8) and comprises a bottom plate (1) and is characterized in that a first supporting component (2) used for supporting the bottom of the part (8), a positioning component (3) used for positioning the part (8), a fixing component (4) used for fixing and limiting the part (8) and a pressing plate component (5) are arranged on the bottom plate (1);
the device is characterized by further comprising a second supporting component (6) which is arranged on the bottom plate (1) and used for carrying out floating supporting on the top of a part (8), wherein the first supporting component (2), the positioning component (3), the fixing component (4) and the pressing plate component (5) are mutually spaced and arranged around the second supporting component (6);
the second supporting component (6) comprises a supporting seat (6-3), a rotary adjusting component (6-4) and a floating supporting component (6-5) are arranged on the supporting seat (6-3), the floating supporting component (6-5) is in contact with the inner wall of the top end of the part (8), and floating supporting is carried out through the rotary adjusting component (6-4).
2. The floating steel ball supporting clamp according to claim 1, wherein a first channel (6-4-3) of the rotation adjusting component (6-4), a second channel (6-5-3) of the floating supporting component (6-5) and a third channel (6-5-4) of the floating supporting component (6-5) are arranged in the supporting seat (6-3) in a penetrating manner, and the first channel (6-4-3), the second channel (6-5-3) and the third channel (6-5-4) are communicated with the same through hole (6-4-4);
the included angle between the axis of the first channel (6-4-3) and the horizontal plane is alpha 1, and the value range of the alpha 1 is 0-15 degrees;
the included angle between the second channel (6-5-3) and the third channel (6-5-4) is alpha 2, and the value range of the alpha 2 is 0-180 degrees.
3. The floating steel ball support fixture of claim 2, wherein α 1 is 8 ° and α 2 is 96 °.
4. The floating steel ball supporting clamp according to claim 3, wherein the inner wall of the first passage (6-4-3) is provided with an internal thread, the first passage (6-4-3) is internally and coaxially provided with a first tightening rod (6-4-1) and a second tightening rod (6-4-2), and the first tightening rod and the second tightening rod can be screwed down or unscrewed in the first passage through the thread;
the height of the first tightening rod (6-4-1) from the horizontal plane is higher than that of the second tightening rod (6-4-2) from the horizontal plane;
a first movable floating support rod (6-5-1) is arranged in the second channel (6-5-3), a second movable floating support rod (6-5-2) is arranged in the third channel (6-5-4), 3D steel balls and a D steel ball are tangentially arranged at the bottom of the first floating support rod (6-5-1) in the second channel (6-5-3), and the arrangement modes and the arrangement quantity of the D steel balls and the D steel balls in the third channel (6-5-4) are the same as those of the second channel (6-5-3).
5. The floating steel ball supporting clamp according to claim 4, wherein 2D steel balls are axially arranged in the first channel (6-4-3) close to the first tightening rod (6-4-1), and D1 steel balls for lifting the D steel balls are arranged at the bottom of the communication part of the first channel (6-4-3), the second channel (6-5-3) and the third channel (6-5-4);
the first tightening rod (6-4-1) is adjusted in a rotating mode, thrust is applied to the D steel ball in the first channel (6-4-3), then opposite force is generated on the D steel ball in the second channel (6-5-3) and the third channel (6-5-4), and then the first floating support rod (6-5-1) and/or the second floating support rod (6-5-2) move along the direction of the channel where the first floating support rod and/or the second floating support rod are located, and the floating support positioning effect on the part (8) is achieved.
6. The floating ball support fixture of claim 4, wherein the D-ball has a diameter greater than the diameter of the D-ball, which is greater than or equal to the diameter of the D1 steel ball;
the diameter of the steel ball D and the diameter of the steel ball D meet the following requirements: D/D is not less than 2.414 and not more than 7.5mm and not more than 15mm, D is not less than 2.574mm and not more than 7.5mm, and D + D is not less than 15;
the diameter of the d1 steel ball satisfies 3mm < d1 < 12 mm.
7. The floating ball support fixture of claim 6, wherein said D-ball has a diameter of 12mm, said D-ball has a diameter of 5mm, and said D1-ball has a diameter of 5 mm.
8. The floating steel ball support fixture according to claim 4, wherein said first floating support rod (6-5-1) is fixable in said second channel (6-5-3) by a fifth screw (6-6), and said second floating support rod (6-5-2) is fixable in said third channel (6-5-4) by a fifth screw (6-6);
and the first floating support rod (6-5-1) and the second floating support rod (6-5-2) are respectively provided with a limiting table.
9. The floating steel ball supporting clamp according to claim 8, wherein the first supporting assembly (2) comprises a plurality of first supporting blocks (2-1) and second supporting blocks (2-2) which are arranged vertically to the bottom plate (1), the positioning assembly (3) comprises a positioning block (3-1), and a cylindrical pin (3-1-1) and a diamond-shaped pin (3-1-2) which are matched with the part (8) for positioning are arranged on the positioning block (3-1);
the fixing component (4) comprises a hollow supporting block (4-1) arranged perpendicular to the base plate (1), a hook head pressing plate (4-2) penetrates through the hollow supporting block (4-1), a sliding groove (4-2-1) is arranged in the middle of the hook head pressing plate (4-2), the sliding groove (4-2-1) can slide on a first stud (4-3) fixed perpendicular to the base plate (1) along the horizontal direction, a first screw (4-4) is arranged at the bottom of one end of the hook head pressing plate (4-2) for supporting, and the other end of the hook head pressing plate (4-2) is pressed on the inner side of the bottom of the part (8).
10. The use method of the floating steel ball support jig of any one of claims 1 to 9, characterized by comprising:
firstly, placing a part to be measured (8) on a first supporting component (2) and a positioning component (3);
secondly, fixing and pressing the part (8) by adopting a fixing component (4) and a pressing plate component (5);
and thirdly, manually operating the rotary adjusting assembly (6-4) to move the steel ball D, pushing the steel ball D to move to enable the floating supporting assembly (6-5) to move to be in contact with the part (8), wherein any one or two floating supporting rods in the floating supporting assembly (6-5) can be lifted simultaneously or independently to realize the positioning of the part (8) at multiple positions.
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| CN202110394083.7A CN113199417B (en) | 2021-04-13 | 2021-04-13 | Floating steel ball supporting clamp and using method thereof |
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| CN202110394083.7A CN113199417B (en) | 2021-04-13 | 2021-04-13 | Floating steel ball supporting clamp and using method thereof |
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| CN113199417A true CN113199417A (en) | 2021-08-03 |
| CN113199417B CN113199417B (en) | 2022-10-25 |
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| KR20210014005A (en) * | 2019-07-29 | 2021-02-08 | 경북대학교 산학협력단 | Tool pot of automatic tool changer |
| CN112405030A (en) * | 2020-11-17 | 2021-02-26 | 浙江中德自控科技股份有限公司 | Method for machining, installing and positioning ball valve body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU1773671C (en) * | 1990-08-08 | 1992-11-07 | Украинский Государственный Проектно-Технологический И Экспериментальный Институт "Укроргстанкинпром" | Fed support |
| JP2000210830A (en) * | 1999-01-21 | 2000-08-02 | Toyota Motor Corp | Positioning device |
| CN104493552A (en) * | 2014-11-28 | 2015-04-08 | 重庆天业模具冲压制造有限公司 | Clamp for plane milling of upper die plate of stamping die |
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| CN112405030A (en) * | 2020-11-17 | 2021-02-26 | 浙江中德自控科技股份有限公司 | Method for machining, installing and positioning ball valve body |
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|---|---|
| CN113199417B (en) | 2022-10-25 |
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