CN210475115U - Section bar chuck for stretch bender - Google Patents
Section bar chuck for stretch bender Download PDFInfo
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- CN210475115U CN210475115U CN202020290388.4U CN202020290388U CN210475115U CN 210475115 U CN210475115 U CN 210475115U CN 202020290388 U CN202020290388 U CN 202020290388U CN 210475115 U CN210475115 U CN 210475115U
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Abstract
The utility model provides a section bar chuck for stretch bender, its characterized in that: comprises at least two sandwiches, a sandwich sleeve and a sandwich driving device; the sandwich sleeves are provided with conical cavities, and each sandwich is slidably arranged on the conical surface of each conical cavity; the sandwich driving device is connected with a sandwich connecting ring; each sandwich is provided with a clamping groove; the clamping grooves of all the sandwiches are respectively clamped on the edges of the sandwich connecting rings so as to realize that the sandwich driving device simultaneously drives all the sandwiches to move on the conical surface of the conical cavity, thereby simultaneously moving all the sandwiches inwards or outwards; tooth plates are detachably connected to the inner sides of the sandwiches respectively. The section bar chuck divides the original sandwich into the sandwich and the tooth plate which can be disassembled and assembled mutually, can save the use cost and the maintenance cost, and has good universality.
Description
Technical Field
The utility model relates to a chuck technical field, more specifically say, relate to a section bar chuck for stretch bender.
Background
The metal sections such as various metal pipes, metal rods and the like can be bent by adopting a stretch bender, so that the metal sections have a certain radian. The stretch bender is simple and convenient to operate, enables the processed section to be perfect in arc shape, and can improve the processing precision and the process consistency and improve the production efficiency.
The stretch bender clamps two ends of the processing section bar through a clamping head and stretches and bends the processing section bar to the same side; the sandwich part of the processing section is clamped in the chuck, and the sandwich part is easy to wear because of extrusion and friction between the sandwich part and the processing section; the core needs to be replaced with a new core after the core is worn to a certain extent. The sandwich has large volume, more materials and high manufacturing cost, so the maintenance and the repair cost of the stretch bender are improved due to the replacement of the sandwich. In addition, since different shapes and sizes of the processing sections need to have corresponding different sandwiches for clamping, manufacturers need to equip a plurality of sets of different sandwiches, and the high cost of the sandwiches can increase the use cost of the stretch bender.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a section bar chuck for a stretch bender; the section bar chuck divides the original sandwich into the sandwich and the tooth plate which can be disassembled and assembled mutually, can save the use cost and the maintenance cost, and has good universality.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a section bar chuck for stretch bender which characterized in that: comprises at least two sandwiches, a sandwich sleeve and a sandwich driving device; the sandwich sleeves are provided with conical cavities, and each sandwich is slidably arranged on the conical surface of each conical cavity; the sandwich driving device is connected with a sandwich connecting ring; each sandwich is provided with a clamping groove; the clamping grooves of all the sandwiches are respectively clamped on the edges of the sandwich connecting rings so as to realize that the sandwich driving device simultaneously drives all the sandwiches to move on the conical surface of the conical cavity, thereby simultaneously moving all the sandwiches inwards or outwards; tooth plates are detachably connected to the inner sides of the sandwiches respectively.
The utility model discloses the theory of operation of section bar chuck is: the sandwich driving device simultaneously drives each sandwich to move on the conical surface of the conical cavity, and the movement of the sandwich on the conical surface of the conical cavity can be decomposed into partial movement along the axial line direction of the conical cavity and partial movement perpendicular to the axial line direction of the conical cavity, so that all the sandwiches drive the tooth plates to simultaneously move inwards (namely, to approach towards the axial line of the conical cavity) to clamp the processed section, or all the sandwiches drive the tooth plates to simultaneously move outwards (namely, to move away from the axial line of the conical cavity) to loosen the processed section. The section clamping head of the utility model divides the original sandwich into a detachable sandwich and a tooth plate, which can be detached; when the tooth plate is worn, only a new tooth plate is replaced; when the stretch bender needs to process processing sectional materials with different shapes and sizes, only the tooth plates need to be replaced without replacing the sandwich part; the use cost, the maintenance cost and the maintenance cost can be saved, and the universality is good.
Preferably, the sandwich is provided with a sandwich mounting hole; a first sandwich connecting piece is arranged in the sandwich mounting hole and extends out of the sandwich mounting hole to be connected with the tooth plate; and a plate changing operation hole is formed in the position, corresponding to the sandwich mounting hole, of the conical surface of the conical cavity.
When the tooth plates are replaced, a disassembling tool is adopted to extend into the sandwich connecting piece I from the plate replacing operation hole and loosen the sandwich connecting piece I so as to release the fixation between the tooth plates and the sandwich and take down the tooth plates; then, a new tooth plate is placed, a dismounting tool is adopted to stretch into the tooth plate changing operation hole, and the core connecting piece is locked to fix the new tooth plate and the core, so that the tooth plate can be changed; the whole section bar chuck does not need to be disassembled and assembled in the process of replacing the tooth plate, the operation is simple and convenient, the time for replacing the tooth plate can be saved, and the work efficiency is favorably improved.
Preferably, the sandwich mounting hole is a step through hole; the diameter of the step through hole at one end close to the tooth plate is small, and the diameter of the step through hole at one end far away from the tooth plate is large; the tooth plate is provided with a screw hole at the position corresponding to the step through hole; the first sandwich connecting piece is a threaded connecting piece; the head of the threaded connecting piece is positioned in the step through hole, and the rod body of the threaded connecting piece extends out of the step through hole and is in threaded connection with the screw hole of the tooth plate.
Preferably, at least two strip-shaped holes are formed in the conical surface of the conical cavity; the limited direction column bodies are respectively arranged in the strip-shaped holes in a sliding way; each direction-limiting column body is respectively connected with the sandwich core so as to realize that the sandwich core can be slidably arranged on the conical surface of the conical cavity.
Preferably, on each sandwich core, the connecting parts of the direction-limiting column bodies and the sandwich cores are respectively positioned at two sides of the sandwich core mounting hole; the stress of the sandwich core is balanced, and the clamping performance and the service life of the section clamp are prevented from being influenced by the unbalanced stress of the sandwich core.
Preferably, a key strip is arranged between the sandwich and the dental plate. The key strips can strengthen the positioning and fixing between the tooth plates and the sandwich core, thereby improving the clamping performance of the section clamping head.
Preferably, the sandwich is provided with a first groove body, and the dental plate is provided with a second groove body; the first groove body and the second groove body form an accommodating space for arranging the key bars together; the length direction of the key bars and the axial direction of the conical cavity form an included angle.
Preferably, the key strips are fixed with the sandwich core through a second sandwich connecting piece. The key strips are fixed with the sandwich and are not directly fixed with the tooth plates, so that the key strips do not need to be disassembled and assembled when the tooth plates are replaced, and the tooth plate replacing process is avoided being added by the key strips.
Preferably, each dental plate is arranged in one of two ways:
the tooth plate comprises a tooth plate body connected with the sandwich core and at least one auxiliary tooth plate connected with the tooth plate body;
secondly, the dental plate is an integrally formed dental plate.
Preferably, the sandwich sleeve comprises a sandwich sleeve body, a sandwich cylinder body and a connecting sleeve; the sandwich sleeve body is connected with the sandwich cylinder body through a connecting sleeve; the conical cavity is positioned in the core clamping sleeve body; the sandwich driving device is arranged in the sandwich cylinder body.
Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:
1. in the section bar chuck of the utility model, the sandwich and the tooth plate are respectively and independently arranged and can be disassembled and assembled; when the tooth plates are worn and need to be replaced or the section bar is processed and the shape is changed, only the tooth plates need to be replaced without replacing the sandwich part, so that the use cost, the maintenance cost and the maintenance cost can be saved, and the universality is good;
2. in the utility model, the whole section bar chuck does not need to be disassembled and assembled in the process of replacing the dental plate, the operation is simple and convenient, the time for replacing the dental plate can be saved, and the improvement of the working efficiency is facilitated;
3. the utility model discloses the section bar chuck has good clamping performance, long service life.
Drawings
Fig. 1 is a schematic structural view of a section bar chuck for a stretch bender according to the present invention;
FIG. 2 is a cross-sectional view of the profile clamp for a stretch bender of the present invention;
FIG. 3 is an exploded view of the profile clamp for a stretch bender of the present invention;
wherein, 1 is a sandwich sleeve, 11 is a sandwich sleeve body, 111 is a long-strip-shaped hole, 112 is a plate changing operation hole, 113 is a direction-limiting column body, 12 is a connecting sleeve, 13 is a sandwich cylinder body, 2 is a sandwich, 21 is a sandwich mounting hole, 22 is a joint of the direction-limiting column body and the sandwich, 23 is a clamping groove, 3 is a tooth plate, 31 is a tooth plate body, 32 is an auxiliary tooth plate, 4 is a key strip, 5 is a sandwich driving device, and 51 is a sandwich connecting ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
The structure of the section clamping head for the stretch bender is shown in fig. 1 to 3, and comprises four core sandwiches 2, a core clamping sleeve 1 and a core driving device 5.
The sandwich core sleeve 1 comprises a sandwich core sleeve body 11, a sandwich cylinder body 13 and a connecting sleeve 12; the sandwich core sleeve body 11 is connected with the sandwich core cylinder body 13 through a connecting sleeve 12. The sandwich drive 5 is arranged in the sandwich cylinder 13. The sandwich sleeve body 11 is provided with a conical cavity.
A plurality of strip-shaped holes 111 are formed on the conical surface of the conical cavity; a direction limiting column 113 is slidably disposed in each elongated hole 111. The direction-limiting columns 113 are respectively connected with the core 2, so that the core 2 can be slidably arranged on the conical surface of the conical cavity. In this embodiment, the direction-limiting column 113 is a bolt, the bolt head is positioned outside the sandwich sleeve body 11 through a nut, and the bolt shank penetrates through the elongated hole 111 and then is screwed with the sandwich core 2, so that the assembly of the section bar clamp can be conveniently performed.
The sandwich driving device 5 is connected with a sandwich connecting ring 51; each sandwich 2 is provided with a clamping groove 23; the clamping grooves 23 of all the sandwiches are respectively clamped on the edges of the sandwich connecting rings 51 so as to realize that the sandwich driving device 5 simultaneously drives all the sandwiches 2 to move on the conical surface of the conical cavity, thereby enabling all the sandwiches 2 to simultaneously move inwards or outwards; tooth plates 3 are detachably connected to the inner sides of the sandwiches 2 respectively. The clamping grooves 23 of the sandwiches are preferably in clearance fit with the edges of the sandwich connecting rings 51.
The utility model discloses the theory of operation of section bar chuck is: the sandwich driving device 5 simultaneously drives each sandwich 2 to move on the conical surface of the conical cavity, and the movement of the sandwich 2 on the conical surface of the conical cavity can be decomposed into a partial movement along the axis direction of the conical cavity and a partial movement perpendicular to the axis direction of the conical cavity, so that all the sandwich 2 drives the tooth plates 3 to simultaneously move inwards (i.e. to approach towards the axis of the conical cavity) to clamp the processed section, or all the sandwich 2 drives the tooth plates 3 to simultaneously move outwards (i.e. to move away from the axis of the conical cavity) to loosen the processed section. The sandwich 2 and the tooth plate 3 of the section bar chuck of the utility model are respectively and independently arranged and can be disassembled and assembled; when the tooth plate 3 is worn, only a new tooth plate is replaced; when the stretch bender needs to process processing sectional materials with different shapes and sizes, only the tooth plate 3 needs to be replaced without replacing the part of the sandwich core 2; the use cost, the maintenance cost and the maintenance cost can be saved, and the universality is good.
The sandwich driving device 5 can adopt the prior art, such as a motor, and only needs to drive the sandwich connecting ring 51 to move linearly.
The core 2 is provided with a core mounting hole 21; a first sandwich connecting piece is arranged in the sandwich mounting hole 21, and the first sandwich connecting piece extends out of the sandwich mounting hole 21 and is connected with the tooth plate 3; the conical surface of the conical cavity is provided with a plate changing operation hole 112 at the position corresponding to the sandwich mounting hole 21.
On each sandwich core 2, the connecting parts 22 of the direction-limiting column bodies and the sandwich cores are preferably respectively positioned at the two sides of the sandwich core mounting hole 21; the stress of the sandwich core 2 is balanced, and the clamping performance and the service life of the section clamping head are prevented from being influenced by the unbalanced stress of the sandwich core 2.
The sandwich mounting hole 21 is preferably a step through hole; the diameter of the step through hole at one end close to the tooth plate 3 is small, and the diameter of the step through hole at one end far away from the tooth plate 3 is large; the tooth plate 3 is provided with a screw hole at the position corresponding to the step through hole; correspondingly, the first sandwich connecting piece is a threaded connecting piece; the head of the threaded connecting piece is positioned in the step through hole, and the rod body of the threaded connecting piece extends out of the step through hole and is in threaded connection with the screw hole of the tooth plate 3.
When the tooth plates 3 are replaced, the sandwich driving device 5 moves the sandwich 2 and the tooth plates 3 back to the axis of the conical cavity body, so that a dismounting space is reserved between the tooth plates 3. Using a dismounting tool, such as a screwdriver, to extend into the plate-changing operation hole 112 to loosen the core connector by twisting, so as to separate the tooth plates 3 from the core 2, and removing the tooth plates 3; then, a new tooth plate is placed in, a dismounting tool is adopted to stretch into the plate changing operation hole 112, and the new tooth plate is fixed with the sandwich 2 by screwing the sandwich connecting piece, so that the tooth plate 3 can be replaced; the whole section bar chuck does not need to be disassembled and assembled in the replacement process of the tooth plate 3, the operation is simple and convenient, the time for replacing the tooth plate 3 can be saved, and the work efficiency is favorably improved.
In this embodiment, the dental plate 3 is provided in the following two ways: one is that: the dental plate 3 comprises a dental plate body 31 connected with the sandwich 2 and an auxiliary dental plate 32 connected with the dental plate body 31; the other is as follows: the dental plate 3 is an integrally formed dental plate. The former method uses a dental plate with a more complex structure, which facilitates the manufacture of the dental plate with the complex structure.
A key strip 4 is preferably arranged between the core 2 and the tooth plate 3. The key strips 4 can strengthen the positioning and fixing between the tooth plate 3 and the sandwich 2, thereby improving the clamping performance of the section clamping head. In practical application, no key strip is arranged between the sandwich and the tooth plate.
Specifically, the core 2 is provided with a first groove body, and the tooth plate 3 is provided with a second groove body; the first groove body and the second groove body form an accommodating space for arranging the key bars 4 together; the length direction of the keybars 4 is preferably angled with respect to the axial direction of the tapered cavity. The key strips 4 are fixed with the sandwich core 2 through the sandwich core connecting piece II. The key strips 4 are fixed with the sandwich 2 and are not directly fixed with the tooth plates 3, the key strips 4 are not required to be disassembled and assembled when the tooth plates 3 are replaced, and the condition that the disassembling and assembling key strips 4 are added to the replacement process of the tooth plates 3 is avoided.
Example two
The section bar chuck for the stretch bender is different from the first embodiment in that: in this embodiment, the number of the core is not four, but two, three, five, six, or even more. The rest of the structure of the present embodiment is the same as that of the first embodiment.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. The utility model provides a section bar chuck for stretch bender which characterized in that: comprises at least two sandwiches, a sandwich sleeve and a sandwich driving device; the sandwich sleeves are provided with conical cavities, and each sandwich is slidably arranged on the conical surface of each conical cavity; the sandwich driving device is connected with a sandwich connecting ring; each sandwich is provided with a clamping groove; the clamping grooves of all the sandwiches are respectively clamped on the edges of the sandwich connecting rings so as to realize that the sandwich driving device simultaneously drives all the sandwiches to move on the conical surface of the conical cavity, thereby simultaneously moving all the sandwiches inwards or outwards; tooth plates are detachably connected to the inner sides of the sandwiches respectively.
2. The profile clamp for a stretch bender according to claim 1, wherein: the sandwich is provided with a sandwich mounting hole; a first sandwich connecting piece is arranged in the sandwich mounting hole and extends out of the sandwich mounting hole to be connected with the tooth plate; and a plate changing operation hole is formed in the position, corresponding to the sandwich mounting hole, of the conical surface of the conical cavity.
3. The profile clamp for a stretch bender according to claim 2, wherein: the sandwich mounting hole is a step through hole; the diameter of the step through hole at one end close to the tooth plate is small, and the diameter of the step through hole at one end far away from the tooth plate is large; the tooth plate is provided with a screw hole at the position corresponding to the step through hole; the first sandwich connecting piece is a threaded connecting piece; the head of the threaded connecting piece is positioned in the step through hole, and the rod body of the threaded connecting piece extends out of the step through hole and is in threaded connection with the screw hole of the tooth plate.
4. The profile clamp for a stretch bender according to claim 2, wherein: the conical surface of the conical cavity is provided with at least two strip-shaped holes; the limited direction column bodies are respectively arranged in the strip-shaped holes in a sliding way; each direction-limiting column body is respectively connected with the sandwich core so as to realize that the sandwich core can be slidably arranged on the conical surface of the conical cavity.
5. The profile clamp for a stretch bender according to claim 4, wherein: on each sandwich core, the connecting parts of the direction-limiting column bodies and the sandwich cores are respectively positioned at the two sides of the sandwich core mounting hole.
6. The profile clamp for a stretch bender according to claim 1, wherein: and a key strip is arranged between the sandwich and the tooth plate.
7. The profile clamp for a stretch bender according to claim 6, wherein: the sandwich is provided with a first groove body, and the tooth plate is provided with a second groove body; the first groove body and the second groove body form an accommodating space for arranging the key bars together; the length direction of the key bars and the axial direction of the conical cavity form an included angle.
8. The profile clamp for a stretch bender according to claim 6, wherein: the key strips are fixed with the sandwich core through the sandwich core connecting piece II.
9. The profile clamp for a stretch bender according to any of claims 1 to 8, wherein: each dental plate is arranged in one of the following two ways:
the tooth plate comprises a tooth plate body connected with the sandwich core and at least one auxiliary tooth plate connected with the tooth plate body;
secondly, the dental plate is an integrally formed dental plate.
10. The profile clamp for a stretch bender according to any of claims 1 to 8, wherein: the sandwich sleeve comprises a sandwich sleeve body, a sandwich cylinder body and a connecting sleeve; the sandwich sleeve body is connected with the sandwich cylinder body through a connecting sleeve; the conical cavity is positioned in the core clamping sleeve body; the sandwich driving device is arranged in the sandwich cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290388.4U CN210475115U (en) | 2020-03-11 | 2020-03-11 | Section bar chuck for stretch bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290388.4U CN210475115U (en) | 2020-03-11 | 2020-03-11 | Section bar chuck for stretch bender |
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| Publication Number | Publication Date |
|---|---|
| CN210475115U true CN210475115U (en) | 2020-05-08 |
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| CN202020290388.4U Active CN210475115U (en) | 2020-03-11 | 2020-03-11 | Section bar chuck for stretch bender |
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| CN (1) | CN210475115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070405A (en) * | 2021-05-08 | 2021-07-06 | 南华大学 | Section stretch bending die with replaceable template piece and assembling method thereof |
-
2020
- 2020-03-11 CN CN202020290388.4U patent/CN210475115U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070405A (en) * | 2021-05-08 | 2021-07-06 | 南华大学 | Section stretch bending die with replaceable template piece and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A profile collet for stretch bending machine Effective date of registration: 20220126 Granted publication date: 20200508 Pledgee: Guangdong Shunde Rural Commercial Bank Co.,Ltd. science and technology innovation sub branch Pledgor: Guangdong Gaopu Bending Technology Co.,Ltd. Registration number: Y2022980001155 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |