A load-adjustable electric tool tester

Abstract

The present invention relates to the field of electric tool testing technology, specifically to a load-adjustable electric tool tester, which solves the problem that when the electric tool tester is in use, the test result is often inaccurate due to the need for a person to hold an electric drill, and when the electric drill is performing different load tests, it is necessary to wait for the replacement of the test tool and the parts of the electric drill, and the device is stopped at this time, resulting in low test efficiency. The present invention includes a support assembly and an electric drill, and the front positions on both sides of the support assembly are fixedly installed with clamping assemblies, and the rear positions on both sides of the support assembly are fixedly installed with testing mechanisms. The present invention can adapt to different models of electric drills for clamping by adjusting the angle between the vertical clamping seat and the horizontal clamping seat through the cooperation of a clamping plate, a horizontal clamping seat and a vertical clamping seat, and can clamp the electric drill by the elastic potential energy of the compression spring that causes the clamping plate to pop outward to clamp the electric drill, thereby clamping electric drills of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of electric tool testing, in particular to an electric tool tester with adjustable load. Background Art

[0002] Power tools are mainly divided into metal cutting power tools, grinding power tools, assembly power tools and railway power tools. Common power tools include hand drills, electric grinders, electric wrenches and electric screwdrivers, among which hand drills are more commonly used. Hand drills are drilling tools powered by AC power or DC batteries. They are a type of handheld power tool. When producing and processing hand drills, they usually need to be load tested.

[0003] The load test of a hand drill usually uses the method of manual hole drilling, and selects steel plates or wooden boards as the test load to detect data such as the drilling force of the hand drill, and other data such as the torque of the hand drill will also be tested at the same time.

[0004] When using existing power tool testers, people often need to hold a hand drill for testing. This process is prone to inaccurate test results due to hand shaking and other operational reasons. When the hand drill is performing different load tests, it is necessary to wait for the test tool and the parts of the hand drill to be replaced. At this time, the device is shut down, resulting in low test efficiency. Therefore, it does not meet existing needs. We propose a load-adjustable power tool tester. Summary of the invention

[0005] The object of the present invention is to provide a load-adjustable electric tool tester to solve the problems that the electric tool tester proposed in the above background technology often leads to inaccurate test results due to the need for personnel to hold a hand drill when in use, and when the hand drill is used to perform different load tests, it is necessary to wait for the test tool and the spare parts of the hand drill to be replaced, at which time the device stops, resulting in low test efficiency, and the like.

[0006] To achieve the above object, the present invention provides the following technical solution: a load-adjustable electric tool tester, comprising a support assembly and a hand drill, wherein the front positions of both sides of the support assembly are fixedly installed with clamping assemblies, the rear positions of both sides of the support assembly are fixedly installed with testing mechanisms, and the hand drill is movably installed on the surface of the clamping assembly;

[0007] The clamping assembly includes a fixed rod, a horizontal clamping seat, a vertical clamping seat, an arc plate and a clamping plate. The fixed rod is fixedly installed on the two side surfaces of the support assembly, the front side of the outer end of the fixed rod is fixedly installed with a horizontal clamping seat, the rear side of the outer end of the fixed rod is rotatably connected with the vertical clamping seat, two clamping plates are movably installed on the inner side of the horizontal clamping seat, and the front side of the horizontal clamping seat is rotatably connected with the arc plate.

[0008] Preferably, the clamping assembly also includes a spring groove, a compression spring, a fixed block, a limit block, a limit rod, a pushing plate, an extrusion spring and an arc buckle, and fixed blocks are fixedly installed on both sides of the horizontal clamping seat, and a spring groove is provided on the inner surface of the fixed block, and one end of the clamping plate is movably inserted into the interior of the spring groove, and a compression spring is movably installed between the clamping plate and the interior of the spring groove. A limit block is fixedly installed on one end of the horizontal clamping seat near the arc plate, and an arc buckle is fixedly installed on one end of the arc plate near the limit block, and the arc buckle is movably inserted into the interior of the limit block, and a limit rod is movably installed inside the limit block, one end of the limit rod extends to the outside of the limit block, and a pushing plate is fixedly installed on the outer surface of the limit rod, and an extrusion spring is movably installed at a position inside the limit block near the push plate, and the other end of the limit rod is movably inserted into the interior of the arc buckle.

[0009] Preferably, the support assembly includes a support frame, a U-shaped groove, a conveyor belt, a roller shaft and a servo motor. The rear side of the support frame is provided with a U-shaped groove, a conveyor belt is movably installed inside the U-shaped groove, two roller shafts are meshed and connected inside the conveyor belt, a servo motor is fixedly installed on one side of the support frame, and the output end of the servo motor is connected to one of the roller shafts through a coupling.

[0010] Preferably, the testing mechanism comprises a connecting rod, a movable disk, a rotating motor, a guide rod, a fixed plate, a drilling test plate, a movable plate and bolts, the connecting rod is fixedly mounted on both side surfaces of the supporting frame, the movable disk is movably mounted on the front side of the outer end of the connecting rod, the rotating motor is fixedly mounted on the rear side of the outer end of the connecting rod, the output end of the rotating motor is connected to the axis of the movable disk through a coupling, two guide rods are fixedly mounted at a lower position on the front surface of the movable disk, a fixed plate is fixedly mounted on the inner surface of the guide rod, a drilling test plate is movably mounted on the front side of the fixed plate, two movable plates are movably mounted on the front surface of the drilling test plate, a guide rail groove is provided at the front end of the guide rod, one end of the movable plate is movably inserted into the inside of the guide rail groove, bolts are movably mounted on the surface of the movable plate, and the movable plate is fixed to the inside of the guide rail groove by bolts.

[0011] Preferably, the testing mechanism also includes a torque testing rod and a U-shaped sliding plate. The torque testing rod is fixedly installed on the outer side of the front surface of the movable disk, and the U-shaped sliding plate is fixedly installed on one end of the connecting rod close to the support frame. Both sides of the U-shaped sliding plate are in contact with the upper and lower sides of the support frame.

[0012] Preferably, two supporting seats are fixedly mounted on the bottom end of the supporting frame.

[0013] Preferably, one of the connecting rods is fixedly mounted on the roller surface at a position close to the clamping assembly on the same side, and the other connecting rod is fixedly mounted on the roller surface at a position away from the clamping assembly on the same side.

[0014] Preferably, one side of the handle of the hand drill is movably clamped inside the horizontal clamping seat, and one side of the hand drill equipped with the drill bit is movably clamped inside the vertical clamping seat, and the surface of the hand drill is in contact with the two side surfaces of the support frame.

[0015] Preferably, the surface of the clamping plate fits with the outer surface of the hand drill, and a flexible cushion is fixedly mounted on the outer surface of the clamping plate.

[0016] Preferably, a pulley is movably mounted on the inner surface of the U-shaped sliding plate close to the support frame, and the pulley is in contact with the outer surface of the support frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention cooperates with the horizontal clamping seat and the vertical clamping seat so that when the device clamps the hand drill, the angle between the handle and the drill bit of the hand drill of different models may change, and may not be the standard 90 degrees. At this time, the angle between the vertical clamping seat and the horizontal clamping seat can be adjusted to adapt to the angle between the handle and the drill bit of the hand drill of different models for clamping. Moreover, by setting the clamping plate, when the handle of the hand drill is placed in the horizontal clamping seat, the clamping plate can be ejected outward by the elastic potential energy of the compression spring to clamp the hand drill, thereby clamping hand drills of different sizes;

[0019] 2. The present invention cooperates with the horizontal clamping seat and the arc plate, so that when the device clamps the hand drill, the limit rod can be pulled outward first, so that one end of the limit rod is moved out from the inside of the arc buckle. At this time, the arc plate can be rotated outward to open the horizontal clamping seat, so that the hand drill can be put inward from the open side of the horizontal clamping seat, so that the handle part is inserted into the inside of the horizontal clamping seat, and one end of the drill bit is aligned with the vertical clamping seat and inserted into the inside of the vertical clamping seat, so that the hand drill is clamped and assembled. At this time, the arc plate is rotated to close the horizontal clamping seat, and the limit rod is released, so that the limit rod is rebounded by the elastic potential energy of the extrusion spring and is stuck in the inside of the arc buckle, thereby locking the arc plate, preventing the hand drill from tilting outward and pushing the arc plate open, causing the hand drill to fall off;

[0020] 3. The present invention cooperates with the movable disk and the guide rod. When the device is testing the hand drill, the movable disk can be driven to rotate by controlling the rotating motor so that different positions on the surface of the movable disk are aligned with the drill bit position of the hand drill. When the torque of the hand drill needs to be tested, the torque test rod can be aligned with the drill bit position of the hand drill for testing. When the drilling force of the hand drill bit needs to be tested, the drilling force of the drill bit can be tested through a drilling test plate. When performing a drilling test, drilling test plates of different thicknesses or materials can be first installed between two guide rods, and the drilling test plates can be fixed by clamping the fixed plate and the movable plate, so that the device can adjust the test load and test different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 A cross-sectional top view of the present invention as a whole;

[0023] Figure 3 A sectional side view of the location of the testing mechanism of the present invention;

[0024] Figure 4 is a cross-sectional side view of the clamping assembly position of the present invention;

[0025] Figure 5 A cross-sectional front view of the present invention as a whole;

[0026] Figure 6 For the present invention Figure 4 Schematic diagram of the local structure of part A;

[0027] Figure 7 For the present invention Figure 3 Schematic diagram of the local structure of part B.

[0028] In the figure: 1. Support assembly; 101. Support frame; 102. U-shaped groove; 103. Conveyor belt; 104. Roller; 105. Servo motor; 2. Clamping assembly; 201. Fixed rod; 202. Horizontal clamping seat; 203. Vertical clamping seat; 204. Arc plate; 205. Spring groove; 206. Clamping plate; 207. Compression spring; 208. Fixed block; 209. Limit block; 210. Limit rod; 211. Push plate; 212. Extrusion spring; 213. Arc buckle; 3. Test mechanism; 301. Connecting rod; 302. Movable disk; 303. Rotating motor; 304. Guide rod; 305. Fixed plate; 306. Drilling test plate; 307. Movable plate; 308. Bolt; 309. Torque test rod; 310. U-shaped sliding plate; 4. Electric hand drill. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] See also Figures 1 to 7 The present invention provides an embodiment: a load-adjustable electric tool tester, comprising a support assembly 1 and a hand drill 4, wherein clamping assemblies 2 are fixedly installed at the front positions on both sides of the support assembly 1, and testing mechanisms 3 are fixedly installed at the rear positions on both sides of the support assembly 1, and the hand drill 4 is movably installed on the surface of the clamping assembly 2;

[0031] See also Figure 3 and Figure 6 The clamping assembly 2 includes a fixed rod 201, a horizontal clamping seat 202, a vertical clamping seat 203, an arc plate 204 and a clamping plate 206. The fixed rod 201 is fixedly installed on the two side surfaces of the support assembly 1. The horizontal clamping seat 202 is fixedly installed on the front side of the outer end of the fixed rod 201. The vertical clamping seat 203 is rotatably connected to the side of the outer end of the fixed rod 201. Two clamping plates 206 are movably installed on the inner side of the horizontal clamping seat 202. The front side of the horizontal clamping seat 202 is rotatably connected to the arc plate 204. Through the cooperation of the horizontal clamping seat 202 and the vertical clamping seat 203, the device can be used for hand drill 4. When clamping, since the angle between the handle and the drill bit position of different models of hand drills 4 may change and is not necessarily the standard ninety degrees, the angle between the vertical clamping seat 203 and the horizontal clamping seat 202 can be adjusted to adapt to the angle between the handle and the drill bit position of different models of hand drills 4 for clamping. By setting the clamping plate 206, when the handle of the hand drill 4 is placed in the horizontal clamping seat 202, the clamping plate 206 can be ejected outward by the elastic potential energy of the compression spring 207 to clamp the hand drill 4, thereby clamping hand drills 4 of different sizes.

[0032] The clamping assembly 2 also includes a spring groove 205, a compression spring 207, a fixed block 208, a limit block 209, a limit rod 210, a push plate 211, an extrusion spring 212 and an arc-shaped buckle 213. The two sides of the horizontal clamping seat 202 are fixedly installed with fixed blocks 208. The inner surface of the fixed block 208 is provided with a spring groove 205. One end of the clamping plate 206 is movably inserted into the interior of the spring groove 205. The compression spring 207 is movably installed between the clamping plate 206 and the interior of the spring groove 205. The end of the horizontal clamping seat 202 near the arc plate 204 is fixedly installed with a limit block 209, and the end of the arc plate 204 near the limit block 209 is fixedly installed with an arc buckle 213, and the arc buckle 213 is movably inserted into the interior of the limit block 209. The interior of the limit block 209 is movably installed with a limit rod 210, and one end of the limit rod 210 extends to the outside of the limit block 209. The outer surface of the limit rod 210 is fixedly installed with a push plate 211. The position of the limit block 209 near the push plate 211 The extrusion spring 212 is movably installed, and the other end of the limit rod 210 is movably inserted into the arc buckle 213. Through the cooperation of the horizontal clamping seat 202 and the arc plate 204, when the device clamps the hand drill 4, the limit rod 210 can be pulled outward first, so that one end of the limit rod 210 is moved out from the inside of the arc buckle 213. At this time, the arc plate 204 can be turned outward to open the horizontal clamping seat 202, so that the hand drill 4 can be put inward from the side of the horizontal clamping seat 202 that is opened, so that the handle portion The drill bit 202 is inserted into the interior of the horizontal clamping seat 202, and one end of the drill bit is aligned with the vertical clamping seat 203 and inserted into the interior of the vertical clamping seat 203, so as to clamp and assemble the hand drill 4. At this time, the arc plate 204 is rotated to close the horizontal clamping seat 202, and the limiting rod 210 is loosened, so that the limiting rod 210 is rebounded by the elastic potential energy of the extrusion spring 212 and is stuck in the interior of the arc buckle 213, thereby locking the arc plate 204 and preventing the hand drill 4 from tilting outward and pushing the arc plate 204 away, causing the hand drill 4 to fall off.

[0033] refer to Figure 2 , Figure 4 and Figure 5 The support assembly 1 includes a support frame 101, a U-shaped groove 102, a conveyor belt 103, a roller 104 and a servo motor 105. The rear side of the support frame 101 is provided with a U-shaped groove 102, and the conveyor belt 103 is movably installed inside the U-shaped groove 102. Two rollers 104 are meshed and connected inside the conveyor belt 103. A servo motor 105 is fixedly installed on one side of the support frame 101, and the output end of the servo motor 105 is connected to one of the rollers 104 through a coupling.

[0034] See also Figure 3 , Figure 4 and Figure 5, wherein the test mechanism 3 includes a connecting rod 301, a movable disk 302, a rotating motor 303, a guide rod 304, a fixed plate 305, a drilling test plate 306, a movable plate 307 and a bolt 308, the connecting rod 301 is fixedly mounted on the two side surfaces of the support frame 101, the movable disk 302 is movably mounted on the front side of the outer end of the connecting rod 301, and the rotating motor 303 is fixedly mounted on the rear side of the outer end of the connecting rod 301, and the output end of the rotating motor 303 is connected to the axis of the movable disk 302 through a coupling, and the movable disk 302 is connected to the rotating motor 303 through a coupling. 02 Two guide rods 304 are fixedly installed at the lower position of the front surface, a fixed plate 305 is fixedly installed on the inner surface of the guide rod 304, a drilling test plate 306 is movably installed on the front side of the fixed plate 305, and two movable plates 307 are movably installed on the front surface of the drilling test plate 306. A guide rail groove is provided at the front end of the guide rod 304, one end of the movable plate 307 is movably inserted into the inside of the guide rail groove, a bolt 308 is movably installed on the surface of the movable plate 307, and the movable plate 307 is fixed to the inside of the guide rail groove by the bolt 308.

[0035] By adopting the above technical scheme, through the cooperation of the movable disk 302 and the guide rod 304, when the device is testing the hand drill 4, the movable disk 302 can be driven to rotate by controlling the rotating motor 303 to align different positions of the surface of the movable disk 302 with the drill bit position of the hand drill 4. When it is necessary to test the torque of the hand drill 4, the torque test rod 309 can be aligned with the drill bit position of the hand drill 4 for testing. When it is necessary to test the drilling force of the drill bit of the hand drill 4, the drilling force of the drill bit can be tested by the drilling test plate 306. When performing the drilling test, the drilling test plates 306 of different thicknesses or materials can be first installed between the two guide rods 304, and the drilling test plates 306 can be clamped and fixed by the fixed plate 305 and the movable plate 307, so that the device can adjust the test load and test different situations.

[0036] The testing mechanism 3 also includes a torque testing rod 309 and a U-shaped sliding plate 310. The torque testing rod 309 is fixedly installed on the outer side of the front surface of the movable disk 302, and the U-shaped sliding plate 310 is fixedly installed on one end of the connecting rod 301 close to the support frame 101. Both sides of the U-shaped sliding plate 310 are in contact with the upper and lower sides of the support frame 101, and two support seats are fixedly installed on the bottom end of the support frame 101.

[0037] refer to Figure 2One of the above-mentioned connecting rods 301 is fixedly installed on the surface of the roller 104 at a position close to the clamping component 2 on the same side, and the other connecting rod 301 is fixedly installed on the surface of the roller 104 at a position away from the clamping component 2 on the same side. When testing the hand drill 4, the conveyor belt 103 can be driven to move by controlling the servo motor 105 to drive the roller 104 to rotate. At this time, the test mechanism 3 on one side moves toward the clamping component 2, and the test mechanism 3 on the other side moves away from the clamping component 2. When the device tests different loads of the hand drill 4, one of the test mechanisms 3 can test the hand drill 4 while adjusting the test load of the other test mechanism 3 and the hand drill 4, thereby reducing the debugging time of the hand drill 4 test and improving the test efficiency.

[0038] One side of the handle of the hand drill 4 is movably clamped inside the horizontal clamping seat 202, and one side of the hand drill 4 equipped with the drill bit is movably clamped inside the vertical clamping seat 203, the surface of the hand drill 4 is in contact with the two side surfaces of the support frame 101, the surface of the clamping plate 206 is in contact with the outer surface of the hand drill 4, a flexible cushion is fixedly installed on the outer surface of the clamping plate 206, and a pulley is movably installed on the inner side of the U-shaped sliding plate 310 close to the surface of the support frame 101, and the pulley is in contact with the outer surface of the support frame 101.

[0039] When the load-adjustable electric tool tester is in use, the horizontal clamping seat 202 and the vertical clamping seat 203 cooperate to enable the device to clamp the hand drill 4. Since the angle between the handle and the drill bit position of different models of hand drills 4 may change and is not necessarily the standard ninety degrees, the angle between the vertical clamping seat 203 and the horizontal clamping seat 202 can be adjusted to adapt to the angle between the handle and the drill bit position of different models of hand drills 4 for clamping. Moreover, through the setting of the clamping plate 206, when the handle of the hand drill 4 is placed in the horizontal clamping seat 202, the clamping plate 206 can be ejected outward by the elastic potential energy of the compression spring 207 to clamp the hand drill 4, thereby clamping hand drills 4 of different sizes.

[0040] Through the cooperation between the horizontal clamping seat 202 and the arc plate 204, when the device is clamping the hand drill 4, the limiting rod 210 can be pulled outward first, so that one end of the limiting rod 210 is moved out from the inside of the arc buckle 213, and then the arc plate 204 can be turned outward to open the horizontal clamping seat 202, so that the hand drill 4 can be put inward from the side of the horizontal clamping seat 202 that is opened, so that the handle part is inserted into the interior of the horizontal clamping seat 202, and one end of the drill bit is inserted into the horizontal clamping seat 202. Align the vertical clamping seat 203 and insert it into the interior of the vertical clamping seat 203, so as to clamp and assemble the hand drill 4. At this time, rotate the arc plate 204 to close the horizontal clamping seat 202, loosen the limit rod 210, and let the limit rod 210 rebound due to the elastic potential energy of the extrusion spring 212 and get stuck in the interior of the arc buckle 213, thereby locking the arc plate 204 and preventing the hand drill 4 from tilting outward and pushing the arc plate 204 away, causing the hand drill 4 to fall off.

[0041] Through the cooperation of the movable disk 302 and the guide rod 304, when the device is testing the hand drill 4, the movable disk 302 can be driven to rotate by controlling the rotating motor 303 to align different positions of the surface of the movable disk 302 with the drill bit position of the hand drill 4. When the torque of the hand drill 4 needs to be tested, the torque test rod 309 can be aligned with the drill bit position of the hand drill 4 for testing. When the drilling force of the drill bit of the hand drill 4 needs to be tested, the drilling force of the drill bit can be tested through the drilling test plate 306. When performing the drilling test, the drilling test plates 306 of different thicknesses or materials can be first installed between the two guide rods 304, and the drilling test plates 306 can be clamped and fixed by the fixed plate 305 and the movable plate 307, so that the device can adjust the test load and test different situations.

[0042] When testing the hand drill 4, the conveyor belt 103 can be driven to move by controlling the servo motor 105 to drive the roller 104 to rotate. At this time, the test mechanism 3 on one side moves toward the direction of the clamping component 2, and the test mechanism 3 on the other side moves away from the clamping component 2. When the device tests different loads of the hand drill 4, one of the test mechanisms 3 can test the hand drill 4 while adjusting the test load of the other test mechanism 3 and the hand drill 4, thereby reducing the debugging time of the hand drill 4 test and improving the test efficiency.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A load-adjustable electric tool tester, comprising a support assembly (1) and a hand drill (4), Features: The front positions of both sides of the support assembly (1) are fixedly mounted with clamping assemblies (2), the rear positions of both sides of the support assembly (1) are fixedly mounted with testing mechanisms (3), and the surface of the clamping assembly (2) is movably mounted with a hand-held electric drill (4); The clamping assembly (2) comprises a fixing rod (201), a horizontal clamping seat (202), a vertical clamping seat (203), an arc plate (204) and a clamping plate (206); the fixing rod (201) is fixedly mounted on the two side surfaces of the supporting assembly (1); the horizontal clamping seat (202) is fixedly mounted on the front side of the outer end of the fixing rod (201); the vertical clamping seat (203) is rotatably connected to the rear side of the outer end of the fixing rod (201); two clamping plates (206) are movably mounted on the inner side of the horizontal clamping seat (202); and the front side of the horizontal clamping seat (202) is rotatably connected to the arc plate (204); The support assembly (1) comprises a support frame (101), a U-shaped groove (102), a transmission belt (103), a roller shaft (104) and a servo motor (105); a U-shaped groove (102) is provided on the rear side of the support frame (101); a transmission belt (103) is movably installed inside the U-shaped groove (102); two roller shafts (104) are meshedly connected inside the transmission belt (103); a servo motor (105) is fixedly installed on one side of the support frame (101); an output end of the servo motor (105) is connected to one of the roller shafts (104) via a coupling; The testing mechanism (3) comprises a connecting rod (301), a movable disk (302), a rotating motor (303), a guide rod (304), a fixed plate (305), a drilling test plate (306), a movable plate (307) and bolts (308); the connecting rod (301) is fixedly mounted on the two side surfaces of the support frame (101); the movable disk (302) is movably mounted on the front side of the outer end of the connecting rod (301); the rotating motor (303) is fixedly mounted on the rear side of the outer end of the connecting rod (301); the output end of the rotating motor (303) is connected to the axis of the movable disk (302) via a coupling; the movable disk (302) is fixedly mounted on the rear side of the outer end of the connecting rod (301); Two guide rods (304) are fixedly installed at the lower position of the front side surface of 302, and a fixed plate (305) is fixedly installed on the inner surface of the guide rod (304). A drilling test plate (306) is movably installed on the front side of the fixed plate (305). Two movable plates (307) are movably installed on the front side surface of the drilling test plate (306). A guide rail groove is provided at the front end of the guide rod (304), and one end of the movable plate (307) is movably inserted into the inside of the guide rail groove. Bolts (308) are movably installed on the surface of the movable plate (307), and the movable plate (307) is fixed to the inside of the guide rail groove by the bolts (308).

2. A load-adjustable electric tool tester according to claim 1, Features: The clamping assembly (2) further comprises a spring groove (205), a compression spring (207), a fixing block (208), a limiting block (209), a limiting rod (210), a pushing plate (211), an extrusion spring (212) and an arc-shaped buckle (213); the fixing blocks (208) are fixedly installed on both sides of the transverse clamping seat (202); the inner surface of the fixing block (208) is provided with a spring groove (205); one end of the clamping plate (206) is movably inserted into the interior of the spring groove (205); a compression spring (207) is movably installed between the clamping plate (206) and the interior of the spring groove (205); the transverse clamping seat (202) is close to the arc-shaped plate (204) A limit block (209) is fixedly mounted on one end of the arc plate (204), an arc buckle (213) is fixedly mounted on one end of the arc plate (204) close to the limit block (209), the arc buckle (213) is movably inserted into the interior of the limit block (209), a limit rod (210) is movably mounted inside the limit block (209), one end of the limit rod (210) extends to the outside of the limit block (209), a push plate (211) is fixedly mounted on the outer surface of the limit rod (210), a compression spring (212) is movably mounted at a position close to the push plate (211) inside the limit block (209), and the other end of the limit rod (210) is movably inserted into the arc buckle (213).

3. The load-adjustable electric tool tester according to claim 2, Features: The testing mechanism (3) further comprises a torque testing rod (309) and a U-shaped sliding plate (310); the torque testing rod (309) is fixedly mounted on the outer side of the front surface of the movable disk (302); the U-shaped sliding plate (310) is fixedly mounted on one end of the connecting rod (301) close to the support frame (101); both sides of the U-shaped sliding plate (310) are in contact with the upper and lower sides of the support frame (101).

4. The load-adjustable electric tool tester according to claim 3, Features: Two support seats are fixedly mounted on the bottom end of the support frame (101).

5. The load-adjustable electric tool tester according to claim 4, Features: One of the connecting rods (301) is fixedly mounted on the surface of the roller shaft (104) at a position close to the clamping assembly (2) on the same side, and the other connecting rod (301) is fixedly mounted on the surface of the roller shaft (104) at a position away from the clamping assembly (2) on the same side.

6. The load-adjustable electric tool tester according to claim 1, Features: One side of the handle of the hand drill (4) is movably clamped inside the horizontal clamping seat (202), and one side of the hand drill (4) on which the drill bit is installed is movably clamped inside the vertical clamping seat (203), and the surface of the hand drill (4) is in contact with the two side surfaces of the support frame (101).

7. The load-adjustable electric tool tester according to claim 1, Features: The surface of the clamping plate (206) fits the outer surface of the hand electric drill (4), and a flexible soft pad is fixedly mounted on the outer surface of the clamping plate (206).

8. The load-adjustable electric tool tester according to claim 5, Features: A pulley is movably mounted on the surface of the inner side of the U-shaped sliding plate (310) close to the support frame (101), and the pulley is in contact with the outer surface of the support frame (101).

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