A bending and fracture resistance detection device for metal saw blade production and its implementation method

Abstract

The present invention relates to the technical field of anti-bending and fracture detection, and discloses an anti-bending and fracture detection device for metal saw blade production and an implementation method thereof. An eccentric rod is driven to rotate by a driving motor, and then an eccentric disk is driven to perform wave motion, so that multiple groups of saw blades can be periodically driven to perform reciprocating sawing actions, which can effectively simulate the action of the saw blade during normal operation, thereby increasing the accuracy of the experiment. By rotating the driving motor, the reciprocating thread is used to drive the lead screw nut to perform up and down reciprocating motion, and then the clamping rod is driven to move up and down. The clamping force of the saw blade is continuously adjusted with the cooperation of a force adjustment rod, which can effectively simulate the force characteristics of the saw blade under real working conditions, making the detection result more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-bending and fracture detection technology, and in particular to an anti-bending and fracture detection device for metal saw blade production and an implementation method thereof. Background Art

[0002] The bending and fracture resistance of a metal saw blade is an important indicator to measure its ability to withstand bending and folding without breaking during the cutting process. The bending and fracture resistance of metal saw blades needs to be tested during production.

[0003] Traditional testing methods for compressive strength testing of saw blades mostly involve static bending and breaking resistance tests using a press. The data obtained from such tests cannot truly reflect the saw blade's bending and breaking resistance under actual working conditions, resulting in differences between the test results and actual performance. Summary of the invention

[0004] The purpose of the present invention is to provide a bending and fracture resistance detection device and an implementation method for metal saw blade production, so as to solve the problem raised in the above background technology that the data obtained by the current traditional detection method cannot truly reflect the bending and fracture resistance of the saw blade under actual working conditions.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bending and fracture resistance detection device for metal saw blade production, comprising a test base, a debris collection bucket is arranged on the test frame, a circular detection chamber is arranged on the debris collection bucket, a saw blade clamping platform is arranged in the circular detection chamber, a lower end clamping mechanism is arranged on the saw blade clamping platform, a buffer reset mechanism is arranged between the lower end clamping mechanism and the saw blade clamping platform, an upper end clamping mechanism is arranged on the upper part of the detection compartment, and a tension pressure sensor is arranged at the upper end clamping mechanism;

[0006] The upper end of the upper clamping mechanism is fixedly connected to a reciprocating pull and pressure rod, the reciprocating pull and pressure rod passes through the detection compartment, and the reciprocating pull and pressure rod is slidably connected to the circular detection compartment through a composite sliding sleeve, the upper end of the reciprocating pull and pressure rod is movably connected to an offset compensation rod through a first universal ball joint, the upper end of the offset compensation rod is movably connected to a fixed seat through a second universal ball joint, the fixed seat is fixedly installed on the deflection disk through bolts, and the fixed seat is provided with six groups like the reciprocating pull and pressure rod, a driving motor is fixedly installed on the test frame, the lower end of the driving motor is fixedly connected to a driving shaft, an eccentric rod is vertically connected to the driving shaft, the end of the eccentric rod is fixedly connected to a threaded rod through a thread, the lower end of the threaded rod is movably connected to a ball, and the ball is in rolling contact with the upper surface of the deflection disk;

[0007] The lower end of the driving shaft is inserted into the circular detection chamber, and a reciprocating thread is provided on the driving shaft. The driving shaft is connected to a lead screw nut through the reciprocating thread. A clamping rod is fixedly connected around the lead screw nut. The clamping rod is inserted into the detection compartment. A clamping groove is provided on the clamping rod. A friction clamping plate is fixedly connected in the clamping groove. The friction clamping plate is used to clamp the saw blade from both sides.

[0008] Furthermore, the circular inspection chamber is evenly divided into six independent inspection compartments by protective partitions, and each inspection compartment is provided with a set of saw blade clamping tables.

[0009] Furthermore, the lower end clamping mechanism includes a lower end clamping block, which is provided with a lower end slot for clamping the saw blade. When clamping, the lower end of the saw blade is inserted into the lower end slot, and the lower end clamping block passes through and fixes the saw blade.

[0010] Furthermore, the buffer reset mechanism includes a buffer tube, which is fixedly connected to the saw blade clamping table, a telescopic rod passing through the buffer tube, a spring baffle fixedly connected to the lower end of the telescopic rod, a first spring is arranged below the spring baffle, and a second spring is arranged above the spring baffle.

[0011] Furthermore, the upper end clamping mechanism includes an upper end clamping block, a center of which is provided with an upper end slot for clamping the upper end of the saw blade, and an upper end fixing pin runs through the end clamping block for fixing the upper end of the saw blade.

[0012] Furthermore, a reset baffle is fixedly connected to the reciprocating pull-and-press rod, and a reset spring is disposed on the outer sleeve of the reciprocating pull-and-press rod. The reset spring is located between the reset baffle and the composite sliding sleeve.

[0013] Furthermore, an adjustment handle for rotating the threaded rod is vertically connected to the upper end of the threaded rod to adjust the height of the ball.

[0014] Furthermore, two force adjustment rods are fixedly connected to the saw blade clamping table, and the force adjustment rods clamp the clamping rods from both sides. The outer side of the clamping rod is processed with first wave strips distributed at equal intervals, and the inner side of the force adjustment rod is processed with second wave strips, and the first wave strips and the second wave strips are staggered with each other.

[0015] Furthermore, an adjusting bolt is connected through the force adjusting rod, and the adjusting bolt passes through the force adjusting rod.

[0016] The present invention provides another technical solution, comprising the following steps:

[0017] S1. Open the transparent protective plate outside the test compartment, and then clamp the saw blade between the lower clamping mechanism and the upper clamping mechanism. When clamping, insert the lower end of the saw blade into the lower end slot on the lower clamping block, and then insert the lower end fixing pin to fix it. Similarly, insert the upper end of the saw blade into the upper end slot on the upper clamping block, and then insert the upper end fixing pin to fix it. In this way, the six saw blades to be tested are clamped in six separate test compartments for comparison testing to reduce errors;

[0018] S2. Start the driving motor, and use the driving motor to drive the driving shaft and the eccentric rod to rotate. When the eccentric rod rotates, it will drive the threaded rod to rotate. When the eccentric rod rotates, the ball at the lower end of the threaded rod will continuously press down the eccentric disk on the same side, thereby realizing the alternate downward pressing of the six groups of reciprocating pull-and-press rods. Under the push of the reset spring, the reciprocating pull-and-press rods can realize alternate rebounding, thereby realizing the action of reciprocating sawing of the six groups of saw blades to be tested alternately;

[0019] S3. While the driving motor drives the saw blade to reciprocate, the rotation of the driving shaft will also drive the screw nut to rise and fall continuously through the cooperation of the reciprocating thread and the screw nut, thereby driving the force adjustment rod to rise and fall continuously. While the force adjustment rod rises and falls, the second wave bar inside the force adjustment rod will be in relative position with the first wave bar outside the clamping rod. When the second wave bar overlaps with the first wave bar, the clamping force of the force adjustment rod on the clamping rod will increase. When the second wave bar is staggered with the first wave bar, the clamping force of the force adjustment rod on the clamping rod will decrease. Thus, the periodic change of the clamping force of the clamping rod on the saw blade is used to simulate the change of friction resistance encountered by the saw blade during operation, thereby obtaining the most realistic detection result.

[0020] S4. Use the adjusting bolt to adjust the spacing of the force adjusting rod, thereby adjusting the clamping force of the friction clamping plate on the saw blade, so that the saw blade breaks when sawing, and use the tension pressure sensor to record the changes in the tension pressure of the saw blade before it breaks in real time, and analyze its anti-bending and fracture performance.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention discloses a bending and fracture resistance detection device for metal saw blade production. The driving motor drives the eccentric rod to rotate, thereby driving the eccentric disk to perform wave motion, thereby periodically driving multiple groups of saw blades to perform reciprocating sawing movements, which can effectively simulate the movement of the saw blades during normal work, thereby increasing the accuracy of the experiment.

[0023] 2. The implementation method of the anti-bending and fracture detection device for metal saw blade production of the present invention is to drive the rotation of the motor and utilize the reciprocating thread to drive the lead screw nut to reciprocate up and down, thereby driving the clamping rod to move up and down, and continuously adjust the clamping force of the saw blade with the cooperation of the force adjustment rod, which can effectively simulate the force characteristics of the saw blade under real working conditions and make the detection result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the debris collection barrel of the present invention;

[0026] Figure 3 This is a schematic diagram of the circular detection chamber structure of the present invention;

[0027] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0028] Figure 5 This is a schematic diagram of the structure of the fixing seat of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the buffer reset mechanism of the present invention;

[0030] Figure 7 It is a schematic diagram of the reciprocating thread structure of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the force adjustment rod of the present invention;

[0032] Fig. 9 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0033] Fig.10 For the present invention Figure 3 Enlarged structural diagram at point C in the middle.

[0034] Numbers in the figure: 1, test frame; 2, debris collection bucket; 3, circular detection chamber; 301, protective partition; 4, detection compartment; 5, saw blade clamping table; 6, lower end clamping mechanism; 601, lower end clamping block; 602, lower end slot; 603, lower end fixing pin; 7, buffer reset mechanism; 701, buffer tube; 702, telescopic rod; 703, spring baffle; 704, first spring; 705, second spring; 8, upper end clamping mechanism; 801, upper end clamping block; 802, upper end slot; 803, upper end fixing pin; 9, pull pressure sensor; 10, reciprocating pull and pressure rod; 100 1. Composite sleeve; 1002. Reset baffle; 1003. Reset spring; 11. First universal ball joint; 12. Offset compensation rod; 13. Second universal ball joint; 14. Fixed seat; 15. Deflection plate; 16. Drive motor; 17. Drive shaft; 1701. Reciprocating thread; 18. Eccentric rod; 19. Threaded rod; 20. Ball; 21. Adjustment handle; 22. Center hole; 23. Screw nut; 24. Clamping rod; 2401. Clamping groove; 2402. First wave strip; 25. Friction clamping plate; 26. Force adjustment rod; 2601. Second wave strip; 27. Adjustment bolt. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0037] Combination Figure 1 - Fig.10 A bending and fracture resistance detection device for metal saw blade production includes a test base 1. A debris collection barrel 2 is arranged on the test frame 1. The debris collection barrel 2 is used to detect fragments after the saw blade is broken. A circular detection chamber 3 is mounted on the debris collection barrel 2. The circular detection chamber 3 is evenly divided into six independent detection compartments 4 by a protective partition 301. Each independent detection compartment 4 can detect a saw blade separately, and an openable transparent protective cover is arranged outside each detection compartment to strengthen protection and prevent saw blade fragments from bursting out and injuring people.

[0038] A group of saw blade clamping tables 5 are arranged in each detection compartment 4, and a lower end clamping mechanism 6 is arranged on the saw blade clamping table 5. The lower end clamping mechanism 6 includes a lower end clamping block 601, and the lower end clamping block 601 is provided with a lower end slot 602 for clamping the saw blade. When clamping, the lower end of the saw blade is inserted into the lower end slot 602, and the lower end clamping block 601 penetrates and fixes the saw blade through the lower end clamping block 601, so as to facilitate clamping and fixing the lower end of the saw blade.

[0039] A buffer reset mechanism 7 is arranged between the lower end clamping mechanism 6 and the saw blade clamping platform 5, and the buffer reset mechanism 7 includes a buffer tube 701. The buffer tube 701 is fixedly connected to the saw blade clamping platform 5, and a telescopic rod 702 runs through the buffer tube 701. A spring baffle 703 is fixedly connected to the lower end of the telescopic rod 702. A first spring 704 is arranged below the spring baffle 703, and a second spring 705 is arranged above the spring baffle 703. The first spring 704 and the second spring 705 can play a buffering role to prevent the saw blade from generating violent impact when moving up and down, causing abnormal breakage, thereby causing inaccurate detection results.

[0040] An upper clamping mechanism 8 is provided at the upper part of the detection compartment 4. Similar to the lower clamping mechanism 6, the upper clamping mechanism 8 includes an upper clamping block 801. An upper clamping slot 802 is provided at the center of the upper clamping block 801 for clamping the upper end of the saw blade. An upper fixing pin 803 is passed through the upper clamping block 801 for fixing the upper end of the saw blade. A tension and pressure sensor 9 is provided at the upper clamping mechanism 8 for monitoring the tension and pressure on the saw blade.

[0041] A reciprocating pull and pressure rod 10 is fixedly connected to the upper end of the upper clamping mechanism 8. The reciprocating pull and pressure rod 10 passes through the detection compartment 4, and is slidably connected to the circular detection chamber 3 through a composite sliding sleeve 1001. A reset baffle 1002 is fixedly connected to the reciprocating pull and pressure rod 10. A reset spring 1003 is provided on the outer sleeve of the reciprocating pull and pressure rod 10. The reset spring 1003 is located between the reset baffle 1002 and the composite sliding sleeve 1001, so that the reciprocating pull and pressure rod 10 can automatically rebound and reset after being pressed down.

[0042] The upper end of the reciprocating pull and pressure rod 10 is movably connected to the offset compensation rod 12 through the first universal ball joint 11, and the upper end of the offset compensation rod 12 is movably connected to the fixed seat 14 through the second universal ball joint 13. The fixed seat 14 is fixedly installed on the deflection disk 15 by bolts. The fixed seat 14 is provided with six groups like the reciprocating pull and pressure rod 10. A driving motor 16 is arranged above the deflection disk 15. The driving motor 16 is fixedly installed on the test frame 1. The lower end of the driving motor 16 is fixedly connected to the driving shaft 17, and the driving shaft 17 is vertically connected to the eccentric rod 18. The end of the eccentric rod 18 is fixedly connected to the threaded rod 19 by a thread. The lower end of the threaded rod 19 is movably connected to the ball 20, and the ball 20 is in rolling contact with the upper surface of the deflection disk 15. The upper end of the threaded rod 19 is vertically connected to an adjusting handle 21 for rotating the threaded rod 19, which can adjust the height of the ball 20 and thereby adjust the reciprocating distance of the saw blade.

[0043] The lower end of the driving shaft 17 is inserted into the circular detection chamber 3, and the driving shaft 17 is provided with a reciprocating thread 1701. The driving shaft 17 is connected to a screw nut 23 through the reciprocating thread 1701. The screw nut 23 is fixedly connected with a clamping rod 24 around it. The clamping rod 24 is inserted into the detection compartment 4. A clamping groove 2401 is provided on the clamping rod 24. A friction clamping sheet 25 is fixedly connected in the clamping groove 2401. The friction clamping sheet 25 is used to clamp the saw blade from both sides and provide sufficient friction to simulate the resistance encountered by the saw blade when cutting hard objects. Two force adjustment rods 26 are fixedly connected to the saw blade clamping table 5. The force adjustment rod 26 clamps the clamping rod 24 from both sides, and the outer side of the clamping rod 24 is processed with a first wave strip 24 distributed at equal intervals, and the inner side of the force adjustment rod 26 is processed with a second wave strip 2601. The force adjustment rod 26 is connected with an adjustment bolt 27 through it. The adjustment bolt 27 is used to adjust the clamping force of the force adjustment rod 26.

[0044] In this way, when the clamping rod 24 moves up and down, the first wave strip 24 will continuously scrape against the second wave strip 2601, so that the clamping force of the clamping rod 24 will continuously change to simulate the continuously changing resistance when sawing an object, so as to achieve a more realistic detection effect.

[0045] Specifically, a foam overflow groove 1201 is provided at the upper end of the electroplating liquid overflow pipe 12, so that the floating foam can overflow from the foam overflow groove 1201 and flow into the sewer pipe 13. The upper inlet of the sewer pipe 13 is flush with the foam overflow groove 1201, so that the foam can enter the sewer pipe 13 conveniently. A sedimentation suction groove 1202 is provided at the lower end of the electroplating liquid overflow pipe 12, so that the sediment can be sucked into the electroplating liquid overflow pipe 12 and flow into the sewer pipe 13 under the action of negative pressure.

[0046] A method for implementing a bending and fracture resistance detection device for metal saw blade production comprises the following steps:

[0047] Step 1: Open the transparent protective plate outside the detection compartment 4, and then clamp the saw blade between the lower clamping mechanism 6 and the upper clamping mechanism 8. When clamping, insert the lower end of the saw blade into the lower end slot 602 on the lower clamping block 601, and then insert the lower end fixing pin 603 to fix it. Similarly, insert the upper end of the saw blade into the upper end slot 802 on the upper clamping block 801, and then insert the upper end fixing pin 803 to fix it. In this way, six saw blades to be tested are clamped in six separate detection compartments 4 for comparison testing to reduce errors.

[0048] Step 2: Start the drive motor 16, and use the drive motor 16 to drive the drive shaft 17 and the eccentric rod 18 to rotate. When the eccentric rod 18 rotates, it will drive the threaded rod 19 to rotate. Therefore, when the eccentric rod 18 rotates, the ball 20 at the lower end of the threaded rod 19 will continuously press the deflection plate 15 on the same side downward, thereby realizing the alternating downward pressure of the six groups of reciprocating pull and pressure rods 10. Under the push of the reset spring 1003, the reciprocating pull and pressure rods 10 can realize alternating rebound, thereby realizing the alternating reciprocating sawing action of the six groups of saw blades to be tested.

[0049] Step 3: While the driving motor 16 drives the saw blade to reciprocate, the rotation of the driving shaft 17 will also drive the screw nut 23 to continuously rise and fall through the cooperation of the reciprocating thread 1701 and the screw nut 23, thereby driving the force adjustment rod 26 to continuously rise and fall. While the force adjustment rod 26 rises and falls, the second wave bar 2601 on the inner side of the force adjustment rod 26 will be in relative position with the first wave bar 2402 on the outer side of the clamping rod 24. When the second wave bar 2601 overlaps with the first wave bar 2402, the clamping force of the force adjustment rod 26 on the clamping rod 24 will increase. When the second wave bar 2601 is staggered with the first wave bar 2402, the clamping force of the force adjustment rod 26 on the clamping rod 24 will decrease. The periodic change of the clamping force of the clamping rod 24 on the saw blade is used to simulate the change of friction resistance encountered during the operation of the saw blade, thereby obtaining the most realistic detection result.

[0050] Step 4: Use the adjusting bolt 27 to adjust the spacing of the force adjusting rod 26, thereby adjusting the clamping force of the friction clamping plate 25 on the saw blade, so that the saw blade breaks when sawing, and use the tension pressure sensor 9 to record the changes in the tension pressure applied to the saw blade before it breaks in real time, and analyze its anti-bending and fracture performance.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bending and fracture resistance detection device for metal saw blade production, comprising a test frame (1), characterized in that: The test frame (1) is provided with a debris collection barrel (2), a circular detection chamber (3) is provided on the debris collection barrel (2), a detection compartment (4) is provided in the circular detection chamber (3), a saw blade clamping table (5) is provided in the detection compartment (4), a lower end clamping mechanism (6) is provided on the saw blade clamping table (5), a buffer reset mechanism (7) is provided between the lower end clamping mechanism (6) and the saw blade clamping table (5), an upper end clamping mechanism (8) is provided on the upper part of the detection compartment (4), and a tension pressure sensor (9) is provided at the upper end clamping mechanism (8); The upper end of the upper end clamping mechanism (8) is fixedly connected to a reciprocating pull-and-press rod (10), a reset baffle (1002) is fixedly connected to the reciprocating pull-and-press rod (10), a reset spring (1003) is provided on the outer sleeve of the reciprocating pull-and-press rod (10), the reset spring (1003) is located between the reset baffle (1002) and the composite sliding sleeve (1001), the reciprocating pull-and-press rod (10) passes through the detection compartment (4), and the reciprocating pull-and-press rod (10) is slidably connected to the circular detection chamber (3) through the composite sliding sleeve (1001), the upper end of the reciprocating pull-and-press rod (10) is movably connected to a displacement compensation rod (12) through a first universal ball joint (11), and the upper end of the displacement compensation rod (12) is connected to the detection compartment (4) through a second universal ball joint ( 13) a fixed seat (14) is movably connected, the fixed seat (14) is fixedly mounted on the deflection plate (15) by bolts, the fixed seat (14) is provided with six groups like the reciprocating tension and compression rod (10), a driving motor (16) is provided above the deflection plate (15), the driving motor (16) is fixedly mounted on the test frame (1), the lower end of the driving motor (16) is fixedly connected to a driving shaft (17), the driving shaft (17) is vertically connected to an eccentric rod (18), the end of the eccentric rod (18) is fixedly connected to a threaded rod (19) by threads, the lower end of the threaded rod (19) is movably connected to a ball (20), the ball (20) is in rolling contact with the upper surface of the deflection plate (15); The lower end of the drive shaft (17) is inserted into the circular detection chamber (3), and a reciprocating thread (1701) is provided on the drive shaft (17), the drive shaft (17) is connected to a lead screw nut (23) via the reciprocating thread (1701), a clamping rod (24) is fixedly connected to the lead screw nut (23) on all sides, the clamping rod (24) is inserted into the detection compartment (4), a clamping groove (2401) is provided on the clamping rod (24), a friction clamping plate (25) is fixedly connected in the clamping groove (2401), and the friction clamping plate (25) is used to clamp the saw blade from both sides; Two force adjustment rods (26) are fixedly connected to the saw blade clamping table (5), and the force adjustment rods (26) clamp the clamping rods (24) from both sides. The outer side of the clamping rods (24) is processed with first wave strips (2402) distributed at equal intervals, and the inner side of the force adjustment rods (26) is processed with second wave strips (2601), and the first wave strips (2402) and the second wave strips (2601) are staggered with each other.

2. The bending and fracture resistance detection device for metal saw blade production according to claim 1, characterized in that: The circular detection chamber (3) is evenly divided into six independent detection compartments (4) by a protective partition (301), and each detection compartment (4) is provided with a set of saw blade clamping tables (5).

3. The bending and fracture resistance detection device for metal saw blade production according to claim 2, characterized in that: The lower end clamping mechanism (6) comprises a lower end clamping block (601), the lower end clamping block (601) being provided with a lower end clamping groove (602) for clamping the saw blade. When clamping, the lower end of the saw blade is inserted into the lower end clamping groove (602), and the lower end clamping block (601) penetrates and fixes the saw blade via a lower end fixing pin (603).

4. The bending and fracture resistance detection device for metal saw blade production according to claim 3, characterized in that: The buffer reset mechanism (7) comprises a buffer tube (701), the buffer tube (701) is fixedly connected to the saw blade clamping platform (5), a telescopic rod (702) passes through the buffer tube (701), a spring stopper (703) is fixedly connected to the lower end of the telescopic rod (702), a first spring (704) is arranged below the spring stopper (703), and a second spring (705) is arranged above the spring stopper (703).

5. The bending and fracture resistance detection device for metal saw blade production according to claim 4, characterized in that: The upper clamping mechanism (8) comprises an upper clamping block (801), the center of the upper clamping block (801) is provided with an upper clamping slot (802) for clamping the upper end of the saw blade, and an upper fixing pin (803) runs through the upper clamping block (801) for fixing the upper end of the saw blade.

6. The bending and fracture resistance detection device for metal saw blade production according to claim 5, characterized in that: An adjustment handle (21) for rotating the threaded rod (19) is vertically connected to the upper end of the threaded rod (19) to adjust the height of the ball (20).

7. The bending and fracture resistance detection device for metal saw blade production according to claim 6, characterized in that: An adjusting bolt (27) is connected through the force adjusting rod (26), and the adjusting bolt (27) passes through the force adjusting rod (26).

8. An implementation method of the bending and fracture resistance detection device for metal saw blade production as claimed in claim 7, characterized in that: The following steps are involved: S1. Open the transparent protective plate outside the detection compartment (4), and then clamp the saw blade between the lower clamping mechanism (6) and the upper clamping mechanism (8). When clamping, insert the lower end of the saw blade into the lower end slot (602) on the lower clamping block (601), and then insert the lower end fixing pin (603) to fix it. Similarly, insert the upper end of the saw blade into the upper end slot (802) on the upper clamping block (801), and then insert the upper end fixing pin (803) to fix it. In this way, six saw blades to be tested are clamped in six separate detection compartments (4) for comparison testing to reduce errors; S2. Start the drive motor (16), and use the drive motor (16) to drive the drive shaft (17) and the eccentric rod (18) to rotate. When the eccentric rod (18) rotates, it drives the threaded rod (19) to rotate. When the eccentric rod (18) rotates, the ball (20) at the lower end of the threaded rod (19) will continuously press the deflection plate (15) on the same side downward, thereby realizing the alternating downward pressing of the six groups of reciprocating tension and pressure rods (10). Under the push of the reset spring (1003) disposed on the outer shell of the reciprocating tension and pressure rod (10), the reciprocating tension and pressure rod (10) can realize the alternate rebound, thereby realizing the alternating reciprocating sawing action of the six groups of saw blades to be tested; S3. While the drive motor (16) drives the saw blade to reciprocate, the rotation of the drive shaft (17) also drives the screw nut (23) to continuously rise and fall through the cooperation of the reciprocating thread (1701) and the screw nut (23), and then the saw blade is clamped by the clamping rod (24) and continuously rises and falls on the inside of the force adjustment rod (26). While the clamping rod (24) rises and falls, the second wave strip (2601) on the inside of the force adjustment rod (26) will be aligned with the first wave strip (2401) on the outside of the clamping rod (24). 02) relative sliding occurs, when the second wave strip (2601) overlaps with the first wave strip (2402), the clamping force of the force adjustment rod (26) on the clamping rod (24) will increase, and when the second wave strip (2601) and the first wave strip (2402) are offset, the clamping force of the force adjustment rod (26) on the clamping rod (24) will decrease, thereby utilizing the periodic change of the clamping force of the clamping rod (24) on the saw blade to simulate the change of friction resistance encountered by the saw blade during operation, thereby obtaining the most realistic detection result; S4. The spacing of the force adjustment rod (26) is adjusted by using the adjustment bolt (27) penetrating the force adjustment rod (26), thereby adjusting the clamping force of the friction clamping plate (25) on the saw blade, so that the saw blade breaks when the saw is pulled, and the tension pressure sensor (9) is used to record the change of the tension pressure on the saw blade before it breaks in real time, and analyze its anti-bending and fracture performance.

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