CN220296414U - Mechanical self-adaptive floating supporting device - Google Patents
Mechanical self-adaptive floating supporting device Download PDFInfo
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- CN220296414U CN220296414U CN202321755245.6U CN202321755245U CN220296414U CN 220296414 U CN220296414 U CN 220296414U CN 202321755245 U CN202321755245 U CN 202321755245U CN 220296414 U CN220296414 U CN 220296414U
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- supporting rod
- wedge
- inclined wedge
- fixed seat
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- 238000007906 compression Methods 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 29
- 230000003044 adaptive effect Effects 0.000 claims description 5
- 238000003754 machining Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003475 lamination Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
A mechanical self-adaptive floating supporting device relates to a machining tool for supporting a workpiece, which comprises a fixed seat, a supporting rod, a wedge, an end cover and a cylinder, wherein the fixed seat is provided with a vertical through hole and a horizontal through hole which are mutually vertically communicated; the inclined wedge is arranged in the horizontal through hole of the fixed seat, the top inclined surface of the inclined wedge is matched with the inclined surface of the supporting rod, the inclined wedge is provided with a strip-shaped through hole for the supporting rod to pass through, the small end part of the inclined wedge is abutted with the extending end of the air cylinder, the large end part of the inclined wedge is pressed and positioned through the end cover, and a transverse compression spring is arranged between the end cover and the large end part of the inclined wedge. The mechanical floating support is realized by contact and lamination of the inclined surface of the support rod and the inclined surface of the inclined wedge top, and the mechanical floating support has the characteristics of high product size precision, reliable structure, low failure rate, low processing rejection rate, low production cost and the like, and is easy to popularize and apply.
Description
Technical Field
The utility model relates to a machining tool for supporting a workpiece, in particular to a mechanical self-adaptive floating supporting device.
Background
In the machining process of the existing part, the positioning and clamping modes are adopted in a one-surface two-pin mode; the three-point support and the pressing are adopted for pressing so as to fix the part for finishing cutting processing. When the three supporting points cannot be uniformly distributed due to the inherent appearance characteristics of the product parts, floating supporting devices are adopted to support weak parts of the product at places with more suspension, so that the phenomenon that the parts deform downwards due to the axial force of a cutter in the cutting process is prevented, and the form and position tolerance of the product is out of specification; when the ratio of the length to the width to the height of the product is large, the inherent rigidity of the product is insufficient, and vibration phenomenon exists in the processing process of the product when a three-point support and a combined pressing and floating support device is adopted in the cutting processing process; thus, auxiliary pressing points are required to be added to ensure the form and position tolerance size of the product. The existing pneumatic floating supporting device generally adopts a mode that an opening taper sleeve (the taper is generally 16 degrees) is adopted for tightly holding a cylindrical supporting rod by an inner cylindrical surface or a steel ball is adopted for tightly holding the cylindrical pin by a taper sleeve (the taper is generally 16 degrees) by the inner cylindrical surface, when the cylindrical supporting rod is subjected to larger pressing force, the cylindrical supporting rod has a retraction phenomenon, and in addition, the pneumatic locking mode is often used for locking the cylindrical supporting rod by the aid of insufficient locking force or the supporting rod is easy to be blocked in the using process. The patent of the utility model with the publication number of CN203622023U discloses a floating support mechanism which adopts vertical inclined planes to match and lock, and the supporting rod still has displacement phenomenon in the compression process due to the consistent taper direction of the vertical inclined planes and the axial compression force, so that the requirement of the form and position tolerance of the product cannot be met.
Disclosure of Invention
The utility model aims to solve the technical problems that: the mechanical self-adaptive floating support device is provided to solve the defects that the support rod is retracted when the existing floating support device is subjected to a large pressing force, and the clamping force is insufficient or the support rod is blocked easily.
The technical scheme for solving the technical problems is as follows: the mechanical self-adaptive floating support device comprises a fixed seat, a support rod, an inclined wedge, an end cover and an air cylinder, wherein the support rod is vertically arranged in the fixed seat, and a limiting device for keeping the support rod in a normal out state is arranged between the upper end of the support rod and the fixed seat; inclined planes are also arranged on two sides of the lower part of the supporting rod; the inclined wedge is horizontally arranged in the fixed seat, a strip-shaped through hole for the lower part of the supporting rod to vertically pass through is formed in the inclined wedge, the top surface of the inclined wedge is a top inclined surface matched with the inclined surface of the supporting rod, and the included angles between the inclined surface of the top inclined surface and the inclined surface of the supporting rod and the horizontal surface are alpha=8-11 degrees; the end cover is arranged on the end face of the fixed seat at one side of the large end of the inclined wedge, and a transverse compression spring is arranged between the end cover and the end part of the large end of the inclined wedge; the cylinder is arranged on the end face of the fixed seat at one side of the small end of the inclined wedge, and the piston rod of the cylinder is abutted on the end face of the small end of the inclined wedge when extending out.
The utility model further adopts the technical scheme that: the fixing seat is provided with a vertical through hole and a horizontal through hole which are mutually perpendicular and communicated, the vertical through hole is a step hole formed by a counter bore and a middle through hole, and the middle through hole is divided into an upper middle through hole and a lower middle through hole by the horizontal through hole; the horizontal through holes are square holes; the limiting device is arranged in the counter bore of the fixing seat, and the supporting rod sequentially penetrates through the limiting device, the through hole in the upper part of the fixing seat and the strip-shaped through hole of the wedge from top to bottom until reaching the through hole in the lower part of the fixing seat.
The utility model further adopts the technical scheme that: the strip-shaped through hole of the inclined wedge is a strip-shaped flat hole; the support rod is formed by combining a cylindrical section positioned at the upper end and a flat section positioned at the lower end, and the inclined surfaces are arranged on two sides of the joint of the cylindrical section and the flat section; the cylindrical section of the supporting rod is matched with the limiting device and the through hole in the upper part of the fixing seat, and the flat section of the supporting rod is matched with the strip-shaped through hole of the inclined wedge.
The utility model further adopts the technical scheme that: the limiting device comprises a limiting end cover, a shaft retainer ring, a gasket and a vertical compression spring which are sequentially arranged in a counter bore of the fixing seat from top to bottom, wherein the shaft retainer ring, the gasket and the vertical compression spring are sequentially sleeved on a cylindrical section of the supporting rod, an inner ring of the shaft retainer ring is clamped in a clamping groove of the cylindrical section of the supporting rod, and the limiting end cover is arranged in a counter bore hole opening of the fixing seat through threaded connection.
The utility model further adopts the technical scheme that: the cylinder is a thin cylinder, and a cylinder backing ring is arranged between the cylinder and the fixed seat.
Due to the adoption of the structure, the mechanical self-adaptive floating support device has the following beneficial effects compared with the prior art:
1. can play a role in mechanical self-adaptive floating support
The utility model comprises a fixed seat, a supporting rod, a wedge, an end cover and an air cylinder, wherein the supporting rod is vertically arranged in the fixed seat, and a limiting device for keeping the supporting rod in a normal out state is arranged between the upper end of the supporting rod and the fixed seat 1; inclined planes are also arranged on two sides of the lower part of the supporting rod; the inclined wedge is horizontally arranged in the fixed seat, a strip-shaped through hole for the lower part of the supporting rod to vertically pass through is formed in the inclined wedge, the top surface of the inclined wedge is a top inclined surface matched with the inclined surface of the supporting rod, and the included angles between the inclined surface of the top inclined surface and the inclined surface of the supporting rod and the horizontal surface are alpha=8-11 degrees; the end cover is arranged on the end face of the fixed seat at one side of the large end of the inclined wedge, and a transverse compression spring is arranged between the end cover and the end part of the large end of the inclined wedge; the cylinder is installed on the fixing base terminal surface of slide wedge tip one side, and the piston rod of cylinder when stretching out supports on the tip terminal surface of slide wedge. Under the normal state (no workpiece is clamped), the supporting rod is in an extending state, and the supporting rod is ensured to be in the extending state by means of the compression supporting force of the vertical compression spring. When the workpiece is clamped, the workpiece stops moving after the support rod is pressed down by a certain displacement, the cylinder on the side face of the inclined wedge withdraws the piston rod, the inclined wedge is pushed to the small end by the inclined wedge through the elasticity of the transverse compression spring on the end face of the large end of the inclined wedge until the inclined face of the support rod is contacted and attached with the top inclined face of the inclined wedge, and therefore the stable support of the workpiece can be achieved. Therefore, the device can play a role in mechanical self-adaptive floating support.
2. The product has high dimensional accuracy
The utility model can realize mechanical self-adaptive floating support, and has the advantages of increasing auxiliary pressing points, supporting weak parts of products at more suspended places, enabling the supporting points to be uniformly distributed, avoiding local deformation of the products, ensuring the form and position tolerance dimension of the products, and having higher dimensional accuracy.
3. Reliable structure
The inclined surface of the support rod and the top inclined surface of the inclined wedge are both transverse inclined surfaces, namely the included angle alpha=8-11 degrees with the horizontal plane, the transverse inclined surfaces are perpendicular to the axial compression force, the stable support of a workpiece can be ensured through contact and lamination of the inclined surface of the support rod and the top inclined surface of the inclined wedge, the retraction phenomenon of the support rod is avoided, and the structure is relatively reliable. When the workpiece is clamped, the workpiece stops moving after the supporting rod is pressed down by a certain displacement, the wedge side jacking cylinder withdraws the piston rod, the wedge is pushed to the small end by the wedge by means of the elasticity of the large end compression spring until the supporting rod inclined surface is contacted with the wedge inclined surface, and the upper pressing device can start to execute pressing action.
4. Can avoid the phenomenon of insufficient locking force or locking of the support rod
The utility model adopts a mechanical self-adaptive floating support mode, so that the phenomenon that the holding force is insufficient or the support rod is easy to be blocked due to the adoption of a pneumatic floating support mode is avoided.
5. Low failure rate and long service life
According to the utility model, the inclined wedge is pushed towards the small end by the elasticity of the transverse compression spring at the end face of the large end of the inclined wedge until the inclined face of the supporting rod is contacted and attached with the top inclined face of the inclined wedge, so that the stable support of a workpiece can be realized; the defects of high failure rate and short service life of the cylinder support are avoided.
6. Can reduce the processing rejection rate and the production cost
The utility model can reduce the scrapping of the workpiece caused by the deformation of the workpiece and the machining scrapping rate, thereby effectively reducing the production cost.
The technical features of a mechanically adaptive floating support according to the present utility model will be further described with reference to the drawings and examples.
Drawings
Fig. 1: the utility model relates to a mechanical self-adaptive floating support device, which is a front cross-sectional view in a normal state,
fig. 2: the utility model relates to a front cross-sectional view of a mechanical self-adaptive floating support device in a workpiece compression state,
fig. 3: the utility model relates to a three-dimensional structure schematic diagram of a mechanical self-adaptive floating support device;
fig. 4: embodiment-a front cross-sectional view of the holder,
fig. 5: embodiment one the schematic perspective view of the fixing base,
fig. 6: embodiment-a front view of the support bar,
fig. 7: embodiment one the schematic perspective view of the support rod,
fig. 8: embodiment-a front cross-sectional view of the cam,
fig. 9: an embodiment is a schematic perspective view of the wedge;
in the above figures, the reference numerals are as follows:
a fixing seat is arranged on the upper part of the fixing seat,
101-vertical through holes, 1011-counter bores, 1012-upper middle through holes, 1013-lower middle through holes,
102-a horizontal through-hole,
2-supporting rods, 201-cylindrical sections, 2011-clamping grooves, 202-inclined surfaces, 203-flat sections,
3-limiting device, 301-limiting end cover, 302-check ring for shaft, 303-gasket, 304-vertical compression spring,
4-wedge, 401-top slope, 402-elongated through hole, 403-spring mounting hole,
a 5-end cover, wherein the end cover is provided with a plurality of grooves,
6-a transverse compression spring,
7-a backing ring of the air cylinder,
8-cylinder.
Detailed Description
Example 1
Disclosed in fig. 1 to 3 is a mechanical self-adaptive floating support device, which comprises a fixed seat 1, a support rod 2, a wedge 4, an end cover 5 and a cylinder 8, wherein:
the fixing base 1 is provided with a vertical through hole 101 and a horizontal through hole 102 which are mutually vertically communicated, as shown in fig. 4-5, the vertical through hole 101 is a step hole formed by a counter bore 1011 and a middle through hole, and the orifice of the counter bore 1011 is provided with an internal thread; the middle through hole is divided into an upper middle through hole 1012 and a lower middle through hole 1013 by a horizontal through hole 102; the horizontal through hole 102 is a square hole.
The support rod 2 is installed in the vertical through hole 101 of the fixing seat 1, the support rod 2 is formed by combining a cylindrical section 201 positioned at the upper end and a flat section 203 positioned at the lower end, as shown in fig. 6-7, a circle of clamping grooves 2011 are formed in the upper part of the cylindrical section 201 along the outer circular surface of the cylindrical section, and inclined surfaces 202 are formed on two sides of the joint of the cylindrical section 201 and the flat section 203.
A limiting device 3 for keeping the support rod 2 in a normal out state is arranged between the cylindrical section 201 at the upper end of the support rod 2 and the counter bore 1011 of the vertical through hole 101 of the fixed seat 1; the limiting device 3 comprises a limiting end cover 301, a shaft retainer ring 302, a gasket 303 and a vertical compression spring 304 which are sequentially arranged from top to bottom; the shaft retainer ring 302, the gasket 303 and the vertical compression spring 304 are sequentially sleeved on the cylindrical section 201 at the upper end of the supporting rod 2, the inner ring of the shaft retainer ring 302 is clamped in the clamping groove 2011 of the cylindrical section 201 of the supporting rod, and the limiting end cover 301 is installed at the orifice of the counter bore 1011 of the fixing base 1 through threaded connection.
The wedge 4 is arranged in the horizontal through hole 102 of the fixing seat 1, and as shown in fig. 8-9, the top surface of the wedge 4 is a top inclined surface 401 with an inclined angle alpha=8-11 degrees; the top inclined surface 401 is matched with the inclined surface 202 of the support rod 2; the wedge 4 is provided with a long strip-shaped through hole 402 with a length of l=25-35 mm along the horizontal direction, and the long strip-shaped through hole 402 is a long strip-shaped flat hole. The small end face of the inclined wedge 4 is matched with the extending end of the air cylinder 8, and when the piston rod of the air cylinder 8 extends out, the small end face of the inclined wedge 4 is abutted against the small end face of the inclined wedge; the spring mounting hole 403 is formed in the large end portion of the inclined wedge 4, the large end portion of the inclined wedge is limited in stroke through the end cover 5, the end cover 5 is mounted on the end face of the fixing seat 1 on one side of the large end of the inclined wedge 4, and the transverse compression spring 6 is mounted between the end cover 5 and the spring mounting hole 403 in the large end portion of the inclined wedge 4.
The supporting rod 2 sequentially passes through the limiting end cover 301 of the limiting device 3, the shaft retainer ring 302, the gasket 303, the vertical compression spring 304, the through hole 1012 in the upper part of the fixing base 1, and the elongated through hole 402 of the wedge 4 from top to bottom until reaching into the through hole 1013 in the lower part of the fixing base 1, so that the cylindrical section 201 of the supporting rod 2 is matched with the limiting device 3 and the through hole 1012 in the upper part of the fixing base 1, and the flat section 203 of the supporting rod 2 is matched with the elongated through hole 402 of the wedge 4 and the through hole 1013 in the lower part of the fixing base 1.
The cylinder 8 is a thin cylinder, a cylinder backing ring 7 is further arranged between the cylinder 8 and the fixed seat 1, and the cylinder 8 is connected to the end face of the fixed seat 1 on one side of the small end of the inclined wedge 4 through the cylinder backing ring 7.
The basic principle of the utility model is as follows:
during installation, the supporting rod 2 is inserted into the vertical through hole 101 of the fixing base 1 and penetrates through the strip-shaped through hole 402 of the inclined wedge 4, the vertical compression spring 304 and the gasket 303 are sleeved at the upper end of the supporting rod 2, the shaft retainer ring 302 is installed in the clamping groove 2011 of the supporting rod 2, and the limiting end cover 301 is screwed into the counter bore 1011 of the fixing base 1 to prevent the supporting rod 2 from falling out. The transverse compression spring 6 is placed in the spring mounting hole 403 on the large end face of the wedge 4, and the large end face of the wedge 4 is screwed into the end cover 5, so that the transverse compression spring 6 is prevented from falling out. The small end face of the wedge 4 is provided with a thin air cylinder and an air cylinder cushion block. Normally, the supporting rod 2 is ensured to be in an extending state by means of the compression supporting force of the vertical compression spring 304. When clamping the work piece, the work piece stops moving after pushing down certain displacement volume with bracing piece 2, and cylinder 8 of slide wedge tip one side withdraws the piston rod, and slide wedge 4 relies on the elasticity of the horizontal compression spring 6 of slide wedge big end terminal surface to push away slide wedge 4 to the tip, until the inclined plane of bracing piece 2 and the top inclined plane contact laminating of slide wedge 4, can realize the steady support to the work piece, then the compression frock of top begins to carry out the action of compressing tightly.
Claims (5)
1. A mechanical self-adaptive floating support device is characterized in that: the device comprises a fixing seat (1), a supporting rod (2), a wedge (4), an end cover (5) and a cylinder (8), wherein the supporting rod (2) is vertically arranged in the fixing seat (1), and a limiting device (3) for keeping the supporting rod (2) in a normal-out state is arranged between the upper end of the supporting rod (2) and the fixing seat (1); inclined surfaces are also arranged on two sides of the lower part of the supporting rod (2); the inclined wedge (4) is horizontally arranged in the fixed seat (1), a strip-shaped through hole (402) for the lower part of the supporting rod (2) to vertically pass through is formed in the inclined wedge (4), the top surface of the inclined wedge (4) is a top inclined surface (401) matched with the inclined surface of the supporting rod (2), and the included angles between the inclined surfaces of the top inclined surface (401) and the supporting rod (2) and the horizontal plane are alpha=8-11 degrees; the end cover (5) is arranged on the end face of the fixing seat (1) at one side of the large end of the inclined wedge (4), and a transverse compression spring (6) is arranged between the end cover (5) and the large end part of the inclined wedge (4); the cylinder (8) is arranged on the end face of the fixed seat (1) at one side of the small end of the inclined wedge (4), and when the piston rod of the cylinder (8) stretches out, the piston rod is abutted to the small end face of the inclined wedge (4).
2. A mechanically adaptive floating support according to claim 1, wherein: the fixing seat (1) is provided with a vertical through hole (101) and a horizontal through hole (102) which are mutually vertically communicated, the vertical through hole (101) is a step hole formed by a counter bore (1011) and a middle through hole, and the middle through hole is divided into an upper middle through hole (1012) and a lower middle through hole (1013) by the horizontal through hole (102); the horizontal through hole (102) is a square hole; the limiting device (3) is arranged in a counter bore (1011) of the fixed seat (1), and the supporting rod (2) sequentially penetrates through the limiting device (3), a through hole (1012) in the upper part of the fixed seat (1) and a strip-shaped through hole (402) of the wedge (4) from top to bottom until reaching into a through hole (1013) in the lower part of the fixed seat (1).
3. A mechanically adaptive floating support according to claim 2, wherein: the strip-shaped through hole (402) of the inclined wedge (4) is a strip-shaped flat hole; the support rod (2) is formed by combining a cylindrical section (201) positioned at the upper end and a flat section (203) positioned at the lower end, and inclined planes (202) are arranged at two sides of the joint of the cylindrical section (201) and the flat section (203); the cylindrical section (201) of the supporting rod (2) is matched with the limiting device (3) and the through hole (1012) in the upper part of the fixing seat (1), and the flat section (203) of the supporting rod (2) is matched with the strip-shaped through hole (402) of the inclined wedge (4).
4. A mechanically adaptive floating support according to claim 3, wherein: stop device (3) including installing spacing end cover (301), for the axle retaining ring (302), gasket (303), vertical compression spring (304) in counter bore (1011) of fixing base (1) from top to bottom in proper order, for the axle retaining ring (302), gasket (303), vertical compression spring (304) overlap in proper order on cylindrical section (201) of bracing piece (2), and the inner circle card of for the axle retaining ring (302) is in draw-in groove (2011) of bracing piece cylindrical section (201), spacing end cover (301) install counter bore (1011) drill way at fixing base (1) through threaded connection.
5. A mechanically adaptive floating support according to any one of claims 1 to 4, wherein: the air cylinder (8) is a thin air cylinder, and an air cylinder backing ring (7) is arranged between the air cylinder (8) and the fixed seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321755245.6U CN220296414U (en) | 2023-07-05 | 2023-07-05 | Mechanical self-adaptive floating supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321755245.6U CN220296414U (en) | 2023-07-05 | 2023-07-05 | Mechanical self-adaptive floating supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220296414U true CN220296414U (en) | 2024-01-05 |
Family
ID=89351853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321755245.6U Active CN220296414U (en) | 2023-07-05 | 2023-07-05 | Mechanical self-adaptive floating supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220296414U (en) |
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2023
- 2023-07-05 CN CN202321755245.6U patent/CN220296414U/en active Active
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