CN216208249U - Welding strength testing device for alloy saw blade tool bit - Google Patents
Welding strength testing device for alloy saw blade tool bit Download PDFInfo
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- CN216208249U CN216208249U CN202121623903.7U CN202121623903U CN216208249U CN 216208249 U CN216208249 U CN 216208249U CN 202121623903 U CN202121623903 U CN 202121623903U CN 216208249 U CN216208249 U CN 216208249U
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Abstract
The utility model discloses a welding strength testing device for an alloy saw blade bit, which comprises a detection unit arranged on one side of the alloy saw blade bit and a grinding tooth arranged on the other side of the alloy saw blade bit, wherein the detection unit comprises a pneumatic clamping jaw and a detection control system linked with the grinding tooth, the pneumatic clamping jaw comprises a cylinder body fixedly arranged at the upper end of a support, an upper clamping jaw and a lower clamping jaw, the upper clamping jaw and the lower clamping jaw are arranged in parallel up and down, an upper pressure head with a three-side-column structure is fixedly arranged below the upper clamping jaw, the side edges of the three side columns are contacted with the upper side surface of the alloy saw blade bit, a lower pressure head with a three-side-column structure is fixedly arranged above the lower clamping jaw, the side edges of the three side columns are contacted with the lower side surface of the alloy saw blade bit, the upper pressure head and the lower pressure head are symmetrically arranged along the center of the alloy saw blade bit, and the utility model carries out torsion detection on the alloy saw blade bit, the method is favorable for detecting the welding quality of the whole welding line, the welding line quality problem is found and reworked immediately, and the processing waste is reduced.
Description
Technical Field
The utility model relates to the field of machining and manufacturing of cutting tools, in particular to a device for testing the welding strength of an alloy saw blade bit.
Background
At present, the welding strength of the alloy saw blade bit is mainly selected after tooth welding, and the welding reliability is ensured by the stability of the process. The inspection method mainly uses a method of impacting the tool bit by a nylon hand hammer, and also has some special detection equipment, but the accuracy of inspection is poor, the inspection efficiency is low, only the inspection is applicable to spot inspection, the spot inspection is established on the condition of stable process, but the welding of the tool bit of the alloy saw blade is high-frequency brazing, the stability of the process is poor, the inspection is mainly ensured by the experience of an operator, and the spot inspection can cause quality hidden trouble; due to sampling inspection, part of the alloy saw blade has cracks and teeth fall after the teeth are ground, and after the problems occur, hundreds of inspections have to be carried out. At this time, the alloy saw blade after gear grinding may cause deformation of the saw blade, which affects the precision of the saw blade. The method for impact detection by using the nylon hand hammer depends on the experience of an operator, the consistency is poor, the accuracy of the detection cannot be ensured, on one hand, the operation of the operator cannot be ensured to be consistent, and on the other hand, the deformation and the local cracking of the nylon hand hammer can cause the stress position and the direction of the alloy saw blade bit to be changed, so that the impact detection has larger reaction difference on the defects at different positions of a welding line
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for testing the welding strength of an alloy saw blade bit, which is beneficial to testing the welding quality of the whole welding seam by testing the torsion of the alloy saw blade bit, and reduces the processing waste by finding out the problem of welding seam quality and immediately reworking.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a device for testing the welding strength of a tool bit of an alloy saw blade comprises a detection unit arranged on one side of the alloy saw blade and grinding teeth arranged on the other side of the alloy saw blade, the detection unit comprises a pneumatic clamping jaw and a detection control system linked with the gear grinding action, the pneumatic clamping jaw comprises a cylinder body, an upper clamping jaw and a lower clamping jaw which are fixedly arranged at the upper end of the support, and the upper clamping jaw and the lower clamping jaw are arranged in parallel up and down, an upper pressure head with a three-side column structure is fixedly arranged below the upper clamping jaw, the side edges of the three side columns are contacted with the upper side surface of the alloy saw blade tool bit, a lower pressure head with a three-side column structure is fixedly arranged above the lower clamping jaw, and the side edges of the three-side column structure are contacted with the lower side surface of the alloy saw blade tool bit, the upper pressure head and the lower pressure head are symmetrically arranged along the center of the alloy saw blade tool bit, and the upper side surface and the lower side surface of the alloy saw blade tool bit are perpendicular to the plane where the axis of the alloy saw blade matrix is located.
The technical scheme of the utility model is further improved as follows: the included angle between the grinding teeth and the pneumatic clamping jaw and the center of the alloy saw blade matrix ranges from 120 degrees to 180 degrees.
The technical scheme of the utility model is further improved as follows: the distance range between the edge of the upper pressure head contacted with the alloy saw blade and the edge of the lower pressure head contacted with the alloy saw blade is 3-15 mm.
The technical scheme of the utility model is further improved as follows: the detection control system has the functions of automatic alarm and automatic stop.
Due to the adoption of the technical scheme, the utility model has the technical progress that:
1. according to the utility model, the welding strength is detected in the front angle grinding process, the inspection device completely detects each cutter head, and the front angle grinding is carried out only after the detection strength of each cutter head is qualified, so that the problem of welding seam quality is found and reworked immediately, and the processing waste is reduced;
2. the utility model adopts torsion detection to the alloy saw blade bit, is beneficial to the detection of the welding quality of the whole welding seam, and has high stability and reliability in the detection process;
3. the inspection device has the advantages of simple structure, convenience in manufacturing, low cost and suitability for popularization.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a perspective view of the structure I-I of FIG. 1;
FIG. 3 is a front view of the overall structure of the present invention;
FIG. 4 is a top view of the overall structure of the present invention;
FIG. 5 is an enlarged view of the structure A-A of FIG. 4;
the device comprises an alloy saw blade 1, an alloy saw blade 1-1, an alloy saw blade tool bit 1-2, an alloy saw blade base body 2, a detection unit 3, a grinding tooth 4, a pneumatic clamping jaw 4-1, a cylinder body 4-2, an upper clamping jaw 4-3, a lower clamping jaw 5, a support seat 6, an upper pressure head 7 and a lower pressure head.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1 to 5, the welding strength testing device for the alloy saw blade bit comprises a detection unit 2 arranged on one side of an alloy saw blade 1 and a grinding tooth 3 arranged on the other side of the alloy saw blade 1, wherein the detection unit 2 comprises a pneumatic clamping jaw 4 and a detection control system in action linkage with the grinding tooth 3, and the detection control system has automatic alarming and automatic stopping functions. The included angle between the grinding teeth 3 and the pneumatic clamping jaw 4 and the center of the alloy saw blade matrix 1-2 ranges from 120 degrees to 180 degrees. The pneumatic clamping jaw 4 comprises a cylinder body 4-1, an upper clamping jaw 4-2 and a lower clamping jaw 4-3 which are fixedly arranged at the upper end of a support 5, wherein the upper clamping jaw 4-2 and the lower clamping jaw 4-3 are arranged in a vertical parallel manner, an upper pressure head 6 with a three-side column structure is fixedly arranged below the upper clamping jaw 4-2, the lateral edges of the three side columns are in contact with the upper side surface of the alloy saw blade tool bit 1-1, a lower pressure head 7 with a three-side column structure is fixedly arranged above the lower clamping jaw 4-3, the lateral edges of the three side columns are in contact with the lower side surface of the alloy saw blade tool bit 1-1, and the distance range between the edge of the upper pressure head 6, which is in contact with the alloy saw blade tool bit 1-1 and the edge of the lower pressure head 7, which is in contact with the alloy saw blade tool bit 1-1 is 3 mm-15 mm. The upper pressure head 6 and the lower pressure head 7 are symmetrically arranged along the center of the alloy saw blade bit 1-1, the plurality of alloy saw blade bits 1-1 are welded on the alloy saw blade matrix 1-2 and then are tempered and naturally disabled, the weld strength of the plurality of alloy saw blade bits 1-1 needs to be detected, a rake angle is ground only after the strength of each alloy saw blade bit 1-1 is detected, the upper side surface and the lower side surface of each alloy saw blade bit 1-1 in the rake angle grinding process are both perpendicular to the plane where the axis of the alloy saw blade matrix 1-2 is located, and the stability and the accuracy of applying the torsion in the inspection process are facilitated.
The specific implementation mode is as follows:
the detection unit 2 and the grinding teeth 3 are arranged on two sides of the alloy saw blade cutter head 1-1, so that the included angle between the grinding teeth 3 and the pneumatic clamping jaw 4 and the center of the alloy saw blade matrix 1-2 is 120 degrees, the pneumatic clamping jaw 4 is opened, the upper pressure head 6 and the lower pressure head 7 apply torque to the upper side surface and the lower side surface of the alloy saw blade cutter head 1-1, the torque is the product of two equal forces and the distance between two stress points, the distance between the two stress points is the distance between the edge of the upper pressure head 6 contacted with the alloy saw blade cutter head 1-1 and the edge of the lower pressure head 7 contacted with the alloy saw blade cutter head 1-1, and the magnitude of the applied torque is determined by the following formula:
[τmax]＝M/α*t 2*L，
wherein [ tau ]max]Allowable shearing stress of the welding seam during torque detection. According to the GB/T14388-2010 specification, the shearing strength of a welding line is not lower than 120MPa, and each unit is adjusted according to different products and different processes;
m-applied torque at detection;
l is the distance between the edge of the upper pressure head 6 contacted with the alloy saw blade bit 1-1 and the edge of the lower pressure head 7 contacted with the alloy saw blade bit 1-1;
t is the thickness of the alloy saw blade matrix 1-2;
the torsion coefficient of the rod with the alpha-rectangular section is a coefficient related to t/L, and the values are shown in the following table:
| t/L | 1.0 | 1.2 | 1.5 | 2.0 | 2.5 | 3.0 | 4.0 | 6.0 | 8.0 | 10.0 | ∞ |
| α | 0.208 | 0.219 | 0.231 | 0.246 | 0.258 | 0.267 | 0.282 | 0.299 | 0.307 | 0.313 | 0.333 |
the detection control system detects that the pneumatic clamping jaw 4 drives the upper pressing head 6 and the lower pressing head 7 to apply torque to the upper side surface and the lower side surface of the alloy saw blade bit 1-1 and meet the weld joint shearing strength of a product, a front angle grinding process is carried out, the grinding teeth 3 are opened, the front angle grinding is carried out on the alloy saw blade bit 1-1, if the product is detected not to meet the weld joint shearing strength, the detection control system automatically alarms and stops, rework is immediately carried out, and the processing waste is reduced.
Claims (4)
1. The utility model provides an alloy saw bit tool bit welding strength verifying attachment which characterized in that: comprises a detection unit (2) arranged on one side of an alloy saw blade (1) and a grinding tooth (3) arranged on the other side of the alloy saw blade (1), wherein the detection unit (2) comprises a pneumatic clamping jaw (4) and a detection control system linked with the grinding tooth (3) in action, the pneumatic clamping jaw (4) comprises a cylinder body (4-1), an upper clamping jaw (4-2) and a lower clamping jaw (4-3) which are fixedly arranged on the upper end of a support (5), the upper clamping jaw (4-2) and the lower clamping jaw (4-3) are arranged in parallel up and down, an upper pressure head (6) with a three-sided column structure is fixedly arranged below the upper clamping jaw (4-2), the lateral edges of the three-sided column are contacted with the upper side surface of the alloy saw blade cutter head (1-1), a lower pressure head (7) with a three-sided column structure is fixedly arranged above the lower clamping jaw (4-3), the upper pressure head (6) and the lower pressure head (7) are symmetrically arranged along the center of the alloy saw blade tool bit (1-1), and the upper side surface and the lower side surface of the alloy saw blade tool bit (1-1) are both perpendicular to the plane where the axis of the alloy saw blade matrix (1-2) is located.
2. The device for testing the welding strength of the alloy saw blade bit according to claim 1, wherein: the included angle range from the grinding teeth (3) and the pneumatic clamping jaw (4) to the center of the alloy saw blade matrix (1-2) is 120-180 degrees.
3. The device for testing the welding strength of the alloy saw blade bit according to claim 1, wherein: the distance range between the edge of the upper pressure head (6) contacted with the alloy saw blade tool bit (1-1) and the edge of the lower pressure head (7) contacted with the alloy saw blade tool bit (1-1) is 3-15 mm.
4. The device for testing the welding strength of the alloy saw blade bit according to claim 1, wherein: the detection control system has the functions of automatic alarm and automatic stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121623903.7U CN216208249U (en) | 2021-07-16 | 2021-07-16 | Welding strength testing device for alloy saw blade tool bit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121623903.7U CN216208249U (en) | 2021-07-16 | 2021-07-16 | Welding strength testing device for alloy saw blade tool bit |
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| CN216208249U true CN216208249U (en) | 2022-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116399575A (en) * | 2023-05-29 | 2023-07-07 | 佛山市顺德区克耐特刀具有限公司 | Circular saw blade sawtooth quality detection device |
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2021
- 2021-07-16 CN CN202121623903.7U patent/CN216208249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116399575A (en) * | 2023-05-29 | 2023-07-07 | 佛山市顺德区克耐特刀具有限公司 | Circular saw blade sawtooth quality detection device |
| CN116399575B (en) * | 2023-05-29 | 2023-08-01 | 佛山市顺德区克耐特刀具有限公司 | Circular saw blade sawtooth quality detection device |
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