CN222038254U - A clamping device for columnar products - Google Patents
A clamping device for columnar products Download PDFInfo
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- CN222038254U CN222038254U CN202420541640.2U CN202420541640U CN222038254U CN 222038254 U CN222038254 U CN 222038254U CN 202420541640 U CN202420541640 U CN 202420541640U CN 222038254 U CN222038254 U CN 222038254U
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- clamping
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- enclasping
- floating sleeve
- groove
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- 238000009434 installation Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
The utility model relates to the field of tool clamps and discloses a clamping device for columnar products, which comprises a bottom plate, wherein a base is arranged on the bottom plate, a placing hole is formed in the base, and two holding blocks are arranged at one end of the placing hole; the outer side of the base is sleeved with a floating sleeve for driving the enclasping block to move towards the center of the placement hole, and one side of the enclasping block is also provided with a reset mechanism; after the columnar product is placed into the placement hole, the two enclasping blocks can be driven to synchronously move towards the center position of the placement hole along the radial direction by utilizing the axial displacement of the floating sleeve, and the fixed clamping of the product is completed through the clamping grooves at the tail ends of the enclasping blocks; then the floating sleeve moves reversely, and the two enclasping blocks are relatively far away under the action of the reset mechanism, so that the locking and clamping of the product are released; the device has simple and compact structure and small weight, and can reduce occupied space and turntable driving load and reduce equipment cost.
Description
Technical Field
The utility model relates to the field of tool clamps, in particular to a clamping device for columnar products.
Background
In the field of automation, a multi-station turntable is often required, and can sequentially rotate a plurality of stations on a workbench to a processing position, so that automatic production is realized; an indexing table is arranged below the turntable, and a clamp for clamping the columnar product is arranged at each station, and the clamp does not use a pneumatic clamping jaw, but adopts a spring reset structure to realize clamping.
At present, most of the modes for clamping and fixing columnar products in the market adopt a three-jaw chuck (shown in the figure), and the three-jaw chuck can automatically clamp the columnar products under the action of spring force; however, the interior of such a clamp comprises 6 columnar wedge blocks, 3T-shaped sliding blocks and a base with a complex structure, which cause difficult processing and high cost, and meanwhile, the clamp is relatively large in volume, so that the cost of the corresponding turntable and the indexing table is increased.
Disclosure of utility model
The utility model aims to solve the problem of providing the clamping device for the columnar product, which can drive the two enclasping blocks to move along the center position of the radial placement hole through the axial movement of the floating sleeve so as to fixedly clamp the product placed in the placement hole, then the floating sleeve moves reversely, and the two enclasping blocks can be relatively far away under the action of the reset mechanism so as to release the locking and clamping of the product; the structure can solve the problems of complex structure, large space volume and high processing cost of the existing three-jaw chuck and other clamps.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the clamping device for the columnar product comprises a bottom plate, wherein a base is arranged on the bottom plate, a placing hole for placing the product is formed in the base, two opposite enclasping blocks capable of synchronously moving along the radial direction towards the center of the placing hole are arranged at one end of the placing hole, and clamping grooves for clamping the product are formed in the opposite sides of the two enclasping blocks;
The outside cover of base is equipped with the floating cover that is used for driving the enclasping piece to placing hole central point put and removes, floating cover can follow the axial movement of base, just one side of enclasping piece still is provided with and is used for driving enclasping piece keeps away from the canceling release mechanical system who places hole central point put and remove.
In a preferred embodiment of the present utility model, an inner side surface of the floating sleeve, which is close to the enclasping block, adopts a conical surface structure, a ball is installed on one side of the enclasping block, which is opposite to the clamping groove, and the ball abuts against the conical surface structure.
In a preferred embodiment of the utility model, one end of the base is provided with a first flange protruding outwards, and one end of the floating sleeve, which is far away from the first flange, is provided with a second flange protruding inwards; the outside cover of base is equipped with the spring, the both ends of spring are supported respectively on first flange and second flange.
In a preferred embodiment of the present utility model, one end of the floating sleeve is fixedly connected with a driving rod, and one end of the driving rod extends to the outer side of the driving rod through the bottom plate.
In a preferred embodiment of the utility model, a chute for placing the enclasping block is formed at one end of the base, a guide groove is formed at the bottom of the chute, a pin is slidably mounted in the guide groove, and one end of the pin penetrates through the enclasping block.
In a preferred embodiment of the utility model, the reset mechanism comprises a pressing plate arranged above the enclasping blocks, the pressing plate is provided with mounting grooves corresponding to the enclasping blocks in number and position, one side of each mounting groove is provided with a groove, one end of each pin penetrates through each enclasping block to extend into each groove, and a reset spring piece capable of driving the pins to be far away from the center of the placement hole in the radial direction is arranged in each mounting groove.
In a preferred embodiment of the utility model, a protecting sleeve is arranged on the outer side of the floating sleeve, one end of the protecting sleeve is fixedly connected with the bottom plate, the other end of the protecting sleeve is fixedly connected with a cover plate, and the cover plate is positioned above the pressing plate.
Advantageous effects
(1) According to the utility model, after the columnar product is loaded into the placing hole, the axial displacement of the floating sleeve can be utilized to drive the two enclasping blocks to synchronously move towards the central position of the placing hole along the radial direction, and the clamping grooves at the tail ends of the enclasping blocks are used for fixing and clamping the product; then the floating sleeve moves reversely, and the two enclasping blocks are relatively far away under the action of the reset mechanism, so that the locking and clamping of the product are released; the device has simple and compact structure and small weight, and can reduce occupied space and turntable driving load and reduce equipment cost.
(2) According to the utility model, the conical surface structure of the floating sleeve can push the enclasping blocks to move through the balls, the structure not only can convert the axial displacement of the floating sleeve into the radial displacement of the enclasping blocks, but also ensures the centering when the product is clamped because the inward moving distance of each enclasping block is equal under the same conical surface structure.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of an exploded construction of the present utility model;
FIG. 3 is a schematic view of the internal structure of the present utility model;
FIG. 4 is a schematic view of the internal structure of the base of the present utility model;
FIG. 5 is a schematic illustration of an isometric construction of a base of the present utility model;
FIG. 6 is a schematic view of the structure of the platen of the present utility model;
FIG. 7 is a schematic view of the location of the mounting slots and grooves of the present utility model;
Wherein, 1, the bottom plate; 2. a base; 21. placing the hole; 22. a chute; 23. a guide groove; 3. a holding block; 4. a pressing plate; 41. a mounting groove; 42. a groove; 5. a floating sleeve; 51. a driving rod; 6. a cover plate; 7. a protective sleeve; 8. a ball; 9. a pin; 10. resetting the spring plate; 11. and (3) a spring.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and examples, which are simplified schematic illustrations of the basic structure of the utility model, which are presented only by way of illustration, and thus show only the structures that are relevant to the utility model.
As shown in fig. 1-4, a clamping device for columnar products comprises a bottom plate 1, wherein a base 2 is arranged on the bottom plate 1, a placing hole 21 for placing the products is formed in the base 2, two opposite enclasping blocks 3 capable of synchronously moving along the radial direction towards the center of the placing hole 21 are arranged at one end of the placing hole 21, and clamping grooves for clamping the products are formed in one side of each of the two opposite enclasping blocks 3.
The outside cover of base 2 is equipped with the floating cover 5 that is used for driving enclasping piece 3 to placing hole 21 central point put and put, and the axial removal of base 2 can be followed to floating cover 5, and enclasping piece 3 one side still is provided with the canceling release mechanical system that is used for driving enclasping piece 3 to keep away from placing hole 21 central point put and remove.
The base 2 is fixedly arranged on the bottom plate 1, and the lower part of the base 2 is penetrated on the bottom plate 1, so that the positioning and the installation of the base 2 on the bottom plate 1 are facilitated through the structure; the placement hole 21 is coaxial with the base 2, the placement hole 21 penetrates through the base 2, and the inner shape of the placement hole 21 is matched with the outline of the columnar product; the clamping groove adopts a V-shaped groove, so that the clamping of products and positioning are facilitated, and the clamping groove is arranged at the tail end of the holding block 3, which is close to one side of the placing hole 21.
Specifically, after the columnar product is loaded into the placement hole 21, the two enclasping blocks 3 can be driven to move towards the center of the placement hole 21 synchronously along the radial direction by utilizing the axial displacement of the floating sleeve 5, and the product is fixedly clamped through the clamping grooves at the tail ends of the enclasping blocks 3; the floating sleeve 5 then moves in the opposite direction and the two clasping blocks 3 are relatively far away under the action of the reset mechanism, so that the locking and clamping of the product are released.
As shown in fig. 2-4, the inner side surface of the floating sleeve 5, which is close to the enclasping block 3, adopts a conical surface structure, the ball 8 is arranged on one side of the enclasping block 3, which is opposite to the clamping groove, and the ball 8 is propped against the conical surface structure. The conical surface structure of the floating sleeve 5 can push the enclasping blocks 3 to move through the balls 8, the structure not only can convert the axial displacement of the floating sleeve 5 into the radial displacement of the enclasping blocks 3, but also ensures the centering when the product is clamped because the inward moving distance of each enclasping block 3 is equal under the same conical surface structure.
Specifically, the inner diameter of the conical surface structure is smallest near the tail end of the floating sleeve 5, and gradually increases along the axial direction to the middle part of the floating sleeve 5; when the floating sleeve 5 moves along the axial direction close to the bottom plate 1, the enclasping block 3 horizontally moves towards the center of the placement hole 21 by the pushing of the ball 8 by the conical surface structure so as to clamp the product; when the floating sleeve 5 moves away from the bottom plate 1 along the axial direction and is driven by the reset mechanism, the holding block 3 is away from the center of the placement hole 21, so that the locking of the product is released. And the inner conical surface of the floating sleeve 5 is subjected to turning, so that symmetry can be ensured, namely, centering when a product is clamped is ensured.
The first flange protruding outwards is arranged at one end of the base 2, and the second flange protruding inwards is arranged at one end of the floating sleeve 5 away from the first flange; the outside cover of base 2 is equipped with spring 11, and the both ends of spring 11 are supported respectively on first flange and second flange.
A floating cavity for installing a spring 11 is formed between the base 2, the first flange, the second flange and the floating sleeve 5 in a surrounding manner, and the second flange can axially approach or separate from the first flange relative to the base 2; the spring 11 is sleeved on the outer side of the base 2, and two ends of the spring respectively lean against one side opposite to the first flange and the second flange.
When the spring 11 is in a compressed state at the beginning, the device is in a clasping state at the initial state; if the spring 11 is in an initial stretched state, the device is in an unlocked state in the initial state; the former is adopted, and when the device is in a clasping state in an initial state, the workpiece is convenient to clamp for a long time.
Further, one end of the floating sleeve 5 is fixedly connected with a driving rod 51, one end of the driving rod 51 penetrates through the bottom plate 1 to extend to the outer side of the bottom plate, and the driving rod 51 can control the moving direction of the floating sleeve 5 along the axial direction.
The two driving rods 51 are symmetrically distributed at the bottom of the floating sleeve 5, and when the floating sleeve 5 is driven by the two driving rods 51, the bottom of the driving rods is stressed more uniformly, so that the floating sleeve 5 moves more smoothly along the axial direction.
As shown in fig. 2 and fig. 5-6, one end of the base 2 is provided with a chute 22 for placing the enclasping block 3, the bottom of the chute 22 is provided with a guide groove 23, a pin 9 is slidably mounted in the guide groove 23, and one end of the pin 9 penetrates through the enclasping block 3.
The chute 22 is arranged at one end of the base 2 opposite to the bottom plate 1 and is used for limiting the radial movement of the enclasping block 3, namely the enclasping block 3 can slide relative to the inner side surface of the chute 22; the guide slot 23 is arranged at the bottom of the chute 22, the length direction of the guide slot is the same as the moving direction of the enclasping block 3, one end of the pin 9 is slidably embedded into the guide slot 23, the other end of the pin 9 penetrates through the enclasping block 3, namely, the enclasping block 3 and the pin 9 can synchronously displace, and under the sliding fit of the guide slot 23 and the pin 9, the displacement of the enclasping block 3 can be guided, so that the enclasping block 3 can not deviate in the radial movement.
Above-mentioned, canceling release mechanical system is including setting up in the clamp plate 4 of enclasping piece 3 top, has seted up the mounting groove 41 corresponding with enclasping piece 3 quantity and position on the clamp plate 4, and recess 42 has been seted up to one side of mounting groove 41, and the one end of pin 9 passes enclasping piece 3 and extends to in the recess 42, and is provided with in the mounting groove 41 and can drive pin 9 along radial the reset shell fragment 10 of keeping away from the central point of placing hole 21.
The mounting groove 41 has different widths at both ends and gradually increases in width along the length direction of the mounting groove 41; the groove 42 is located at a wider position of the mounting groove 41; the reset spring 10 has good elasticity, one end of the reset spring is clamped into the narrower end of the mounting groove 41, the other end of the reset spring can swing in the radial direction in the wider groove of the mounting groove 41, and in order to facilitate the installation of the reset spring 10, the reset spring 10 and the mounting groove 41 are both provided with bending structures.
One end of the pin 9 is slidably embedded in the guide groove 23, the other end of the pin penetrates through the enclasping block 3 and extends into the groove 42, and the groove 42 is communicated with the mounting groove 41; based on this, when the enclasping block 3 moves in the radial direction near the center position of the placement hole 21, both ends of the pin 9 move synchronously with the enclasping block 3 along the guide groove 23 and the groove 42, respectively, and one end of the pin 9 moves from the groove 42 into the mounting groove 41, and presses the reset spring 10 to deform; when the floating sleeve 5 moves away from the bottom plate 1 along the axial direction, the ball 8 moves to a position with larger diameter of the conical surface structure relative to the floating sleeve 5, and the radial limitation of the enclasping block 3 is released; at the same time, the deformed reset spring piece 10 is restored, and the pin 9 pushes the enclasping block 3 to move away from the center of the placement hole 21 in the radial direction, so that the device is in an unlocking state.
As shown in fig. 1-4, a protecting sleeve 7 is arranged on the outer side of the floating sleeve 5, one end of the protecting sleeve 7 is fixedly connected with the bottom plate 1, the other end of the protecting sleeve is fixedly connected with a cover plate 6, and the cover plate 6 is positioned above the pressing plate 4.
The protective sleeve 7 is fixedly connected with the cover plate 6 and covers the outer side of the base 2, and the pressing plate 4 is fixedly arranged on one side, close to the bottom plate 1, of the cover plate 6; the base 2 and the protective sleeve 7 are relatively static, and the floating sleeve 5 can axially and linearly move relative to each other.
Working principle:
And (3) enclasping state: in the utility model, the state is a default state, in the state, the floating sleeve 5 is pressed down by the spring 11, the ball 8 is pressed inwards by the conical surface of the inner wall of the floating sleeve 5, the ball 8 pushes the enclasping block 3 to move inwards along the chute 22 of the base 2, at the moment, the reset elastic sheet 10 is pressed and deformed, and the clamping groove of the enclasping block 3 can center and clamp a columnar product;
Automatic centering: in the clasping state, as the clamping grooves of the two clasping blocks 3 are symmetrical relative to the axis of the placement hole 21 in design, when the floating sleeve 5 is pressed down under the action of the spring 11, the clasping blocks 3 are pushed to move towards the center by the same distance, so that the columnar product is positioned in the center when the columnar product is clamped by the device;
Unlocking state: the floating sleeve 5 is pushed upwards by the driving rod 51, so that the inner conical surface of the floating sleeve is separated from contact with the ball 8, the reset elastic sheet 10 is reset by the pin 9 to push the enclasping block 3 to move outwards, and the clamping groove of the reset elastic sheet releases the columnar product, so that unlocking is completed.
Application of clamping device on the carousel: because in the default state (clasping state), the columnar product is clamped by the elastic force of the spring 11; therefore, when the device is arranged on the turntable and rotates along with the turntable, the columnar product can still be firmly clamped, and in addition, the device has compact structure and small weight, and is beneficial to being placed on the turntable.
In summary, the present patent provides a clamp for a turntable, which can automatically clamp a columnar product, automatically center the columnar product, and apply an external force to unlock and clamp the columnar product; the device is mainly characterized in that the device is a rotary body part except a bottom plate 1, milling and grinding are needed except some characteristics, and meanwhile, the device is compact in structure, so that the processing cost and the cost of a rotary table and an index table matched with the device can be reduced.
The above-described preferred embodiments according to the present utility model are intended to suggest that, from the above description, various changes and modifications can be made by the person skilled in the art without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420541640.2U CN222038254U (en) | 2024-03-20 | 2024-03-20 | A clamping device for columnar products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420541640.2U CN222038254U (en) | 2024-03-20 | 2024-03-20 | A clamping device for columnar products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222038254U true CN222038254U (en) | 2024-11-22 |
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ID=93503209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420541640.2U Active CN222038254U (en) | 2024-03-20 | 2024-03-20 | A clamping device for columnar products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222038254U (en) |
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- 2024-03-20 CN CN202420541640.2U patent/CN222038254U/en active Active
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