CN214251865U - Device for testing shearing strength of saw-tooth welding seam of circular saw blade - Google Patents
Device for testing shearing strength of saw-tooth welding seam of circular saw blade Download PDFInfo
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- CN214251865U CN214251865U CN202022800002.2U CN202022800002U CN214251865U CN 214251865 U CN214251865 U CN 214251865U CN 202022800002 U CN202022800002 U CN 202022800002U CN 214251865 U CN214251865 U CN 214251865U
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Abstract
The utility model discloses a saw blade sawtooth welding seam shear strength testing arrangement. It includes the test piece that has the lateral part slot of a body structure, is provided with on the test piece and runs through the screw hole to the lateral part slot and directly link up the logical groove of surface about the test piece by the upper surface, leads to the inslot and can insert the drift, and the test work piece is placed and is compressed tightly and carry out the punching press shearing test to it under the effect of load through the drift through the piece that compresses tightly of the downthehole screw in of screw thread after the lateral part slot. The advantages are that: the saw blade is easy to machine and manufacture and high in machining precision, so that the saw blade is beneficial to accurate positioning and installation, and the reliability of the shear strength test is guaranteed. The saw teeth and the saw disc are sheared to be stripped, the efficiency is high, the accuracy of a test result is guaranteed, the strength of the shearing part of the punch can be guaranteed, the punch is durable in use, the other surface of the punch can be used for shearing after the shearing part is damaged, and the service life is further prolonged.
Description
Technical Field
The utility model relates to a saw bit sawtooth testing arrangement, specifically speaking are saw bit sawtooth welding seam shear strength testing arrangement of carpenter's carbide.
Background
For a hard alloy circular saw blade, in order to ensure the performance of a product, a shear strength test is generally required to be carried out on a cutting position of a tool bit serving as a main working position, and a conventional shear strength test device in the prior art generally comprises an upper die body and a lower die body which are arranged at the bottom of the upper die body through bolts, wherein the upper die body and the lower die body are combined to form a slot for inserting the circular saw blade, and then circular shear punches are arranged on the upper die body and the lower die body to carry out a shear test on the circular saw blade under the action of load, so that a saw tooth and a saw disc are sheared to be peeled, and the shear strength of the circular saw blade is measured. The existing testing mode can realize the testing purpose, but has the following defects that on one hand, the upper die body and the lower die body adopt a split structure connected by bolts, so that the manufacturing and the processing are inconvenient, the accuracy of the involution and the installation of the upper die body and the lower die body is poor, the accurate positioning and the installation of a circular saw blade are not facilitated, and meanwhile, when the upper die body and the lower die body deviate, a punch head cannot accurately align with a shearing and punching hole, so that a shearing test workpiece is scrapped.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a circular saw blade sawtooth welding seam shear strength testing arrangement that structural design is simple, make the convenience, compress tightly that the location is accurate, test data is accurate, operation convenient to use.
In order to solve the technical problem, the utility model discloses a circular saw blade sawtooth welding seam shear strength testing arrangement, including the test piece that has the lateral part slot of a body structure, be provided with on the test piece and run through the screw hole to the lateral part slot and be located the logical groove of surface about the direct link up test piece of screw hole side by the upper surface, lead to the inslot and can insert the drift that is used for carrying out the shearing to the test workpiece, the test workpiece places behind the lateral part slot can compress tightly and carry out the shear strength test to it through the drift under load action through the piece that compresses tightly of screw in the screw hole.
The through groove is of a rectangular section structure.
The shearing punch comprises a rod body matched with the outer contour of the through groove and a pressing block arranged at the top of the punching rod.
The test block is a rectangular block which is integrally formed, and the side part of the rectangular block is directly cut and grooved to form the side part slot.
The pressing piece is an inner hexagon bolt.
The utility model has the advantages that:
(1) through the integrated into one piece's that sets up test block that has the lateral part slot, not only make its manufacturing easy and the machining precision is high to be favorable to the accurate positioning installation of saw bit, provide the guarantee for shear strength test reliability.
(2) Through the logical groove of the rectangular cross section that sets up and with lead to the drift that the groove outline suited, not only can utilize the shearing effect of the cutter formula that the rectangular cross section of the rectangular rod body has from this, can be convenient make sawtooth and saw disc take place to cut and produce and peel off, efficient and guaranteed the accuracy of test result, but also can guarantee the intensity at drift shearing position, make its use lasting, even if damage when drift shearing position also can overturn the back and utilize another side to cut, further prolonged life.
(3) The inner hexagon bolt is used as a pressing piece, so that the pressing operation is easy, time and labor are saved, and the operation efficiency is greatly improved.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a device for testing the shear strength of a saw-tooth weld of a circular saw blade according to the present invention;
FIG. 2 is a schematic cross-sectional structure view of the device for testing the shear strength of the saw-tooth weld of the circular saw blade of the present invention;
fig. 3 is the utility model discloses circular saw blade sawtooth welding seam shear strength testing arrangement overlook the schematic diagram.
Detailed Description
The following describes the device for testing the shear strength of the weld seam of the saw blade teeth of the circular saw blade in further detail with reference to the accompanying drawings and the specific embodiments.
As shown in the figures, the shear strength testing device for the saw-tooth welding seam of the circular saw blade comprises an integrally formed testing block 1 with a side slot, and as can be seen from the figures, the testing block 1 is a rectangular block which is integrally cast and directly cuts and slots at the side part of the rectangular block to form the side slot, the testing block with the structure can be formed by utilizing the integral rectangular block only by one cutting process, the manufacturing process is very simple, the testing block 1 is provided with a threaded hole which penetrates through the side slot from the upper surface to the side slot and a through groove 5 which is positioned beside the threaded hole and directly penetrates through the upper surface and the lower surface of the testing block, wherein the threaded hole is close to the opening side, the through groove is close to the inner side of the side slot, a punch 3 for punching a testing workpiece can be inserted into the through groove 5, as can be seen from the figures, the through groove 5 is set to be of a rectangular section structure, the punch 3 comprises a rod body of the rectangular section structure which is matched with the outline of the through groove and a pressing block 2 which is arranged at the top of a pressing rod, during the use, can transfer the use to the drift as required, make two side surfaces of drift all can regard as the punching press shear surface from this, test workpiece places and compresses tightly through hexagon socket head cap screw 4 of threaded hole screw in behind the lateral part slot, and the test position of test workpiece is located logical groove department this moment, and test workpiece is compressed tightly by hexagon socket head cap screw 4 and compresses tightly, then carries out punching press shear test to it through drift 3 again.
The specific working principle is as follows:
three teeth are taken for each saw blade to be used as a shear strength test, the saw blade is placed in a side slot of a test block, and is tightly pressed on the upper surface of the saw blade through a hexagon socket head cap screw, and the test block is of an integral structure, so that errors generated in the stamping process can not occur in the side slot of the test block, the loading speed of a press machine is 2-4mm/min, the saw teeth are stripped, the length of a tooth holder and the width of the tooth holder are measured through a tool microscope, and the area of the tooth holder is calculated.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (5)
1. The utility model provides a circular saw blade sawtooth welding seam shear strength testing arrangement which characterized in that: test piece (1) that has a lateral part slot including a body structure, be provided with on test piece (1) and run through to the screw hole of lateral part slot and be located the logical groove (5) of surface about the direct link up test piece of screw hole side by the upper surface, can insert drift (3) that are used for carrying out the punching press to the test workpiece and cut in leading to groove (5), the test workpiece places in the lateral part slot after can compress tightly and carry out the shear strength test to it through drift (3) under the effect of load through compressing tightly piece (4) of screw in the screw hole.
2. The circular saw blade saw tooth weld shear strength testing device as claimed in claim 1, wherein: the through groove (5) is of a rectangular section structure.
3. The circular saw blade saw tooth weld shear strength testing apparatus as claimed in claim 1 or 2, wherein: the punch (3) comprises a rod body matched with the outer contour of the through groove and a pressing block (2) arranged at the top of the punching rod.
4. The circular saw blade saw tooth weld shear strength testing device as claimed in claim 3, wherein: the test block (1) is a rectangular block which is integrally formed, and a groove is directly cut on the side of the rectangular block to form the side slot.
5. The apparatus for testing the shear strength of a weld of a saw blade saw tooth according to claim 1, 2 or 4, wherein: the pressing piece (4) is an inner hexagon bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022800002.2U CN214251865U (en) | 2020-11-27 | 2020-11-27 | Device for testing shearing strength of saw-tooth welding seam of circular saw blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022800002.2U CN214251865U (en) | 2020-11-27 | 2020-11-27 | Device for testing shearing strength of saw-tooth welding seam of circular saw blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214251865U true CN214251865U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022800002.2U Active CN214251865U (en) | 2020-11-27 | 2020-11-27 | Device for testing shearing strength of saw-tooth welding seam of circular saw blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214251865U (en) |
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2020
- 2020-11-27 CN CN202022800002.2U patent/CN214251865U/en active Active
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