Wear resistance testing equipment for electric tool firing pin

Abstract

The invention provides wear resistance testing equipment for an electric tool firing pin, and relates to the technical field of wear resistance testing of electric tool firing pins, and the wear resistance testing equipment comprises a support driving part, a wear resistance testing part, a connection sealing part, a movable mounting part and a positioning clamping part; the wear resistance testing part is mounted on the supporting and driving part; the connection sealing part is mounted on the wear resistance testing part; the movable mounting part is mounted on the left side of the support driving part; the positioning and clamping part is mounted on the movable mounting part, and a to-be-tested electric tool firing pin is mounted on the positioning and clamping part; according to the invention, a worker can conveniently know the wear-resistant condition of the electric tool firing pin in a high-temperature state, so that the wear-resistant test precision of the electric tool firing pin is higher; the problem that the wear resistance of the electric tool firing pin at high temperature cannot be tested due to the fact that the to-be-tested electric tool firing pin is also cooled by the sprayed cooling liquid when the friction disc on the wear resistance test equipment is cooled by spraying the cooling liquid generally is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wear resistance testing of electric tool strikers, and more specifically, relates to a wear resistance testing device for electric tool strikers. Background Art

[0002] The striker of an electric tool is the core component of an impact tool. When working, it needs to strike hard materials at a high frequency and withstand huge friction and impact forces. Wear resistance testing can simulate actual working conditions to verify the hardness of the striker material, the heat treatment process and the durability of the surface coating. If the wear resistance is insufficient, the striker will wear out too quickly. Wear resistance testing is a necessary step to ensure the reliability, safety and economy of the tool.

[0003] The wear resistance testing equipment currently used still has the following problems:

[0004] 1. Generally, the friction disc on the wear test equipment is cooled by spraying coolant, which causes the power tool striker to be tested to be cooled by the sprayed coolant, making it impossible to test the wear resistance of the power tool striker at high temperature;

[0005] 2. When the friction disc on the wear-resistant test equipment comes into contact with foreign matter, the friction disc on the wear-resistant test equipment cannot stop rotating automatically, causing the foreign matter to easily damage the friction disc on the wear-resistant test equipment, thus shortening the service life of the friction disc.

[0006] 3. Usually it is a continuous wear test. Since the power tool striker generally performs intermittent reciprocating motion during actual use, the wear test of the power tool striker is not accurate enough. Summary of the Invention

[0007] The disclosed embodiment relates to a wear-resistance testing device for a power tool striker, which comprises a supporting driving portion, a wear-resistance testing portion, a connecting sealing portion, a movable mounting portion and a positioning clamping portion; the device facilitates staff to learn about the wear-resistance of the power tool striker under a high-temperature state, thereby making the wear-resistance testing of the power tool striker more accurate; the movable connecting shaft will separate from the connecting groove, causing the circular friction disk to stop rotating, thereby avoiding damage to the circular friction disk; the device realizes intermittent and repeated testing of the power tool striker, thereby simulating the reciprocating motion of the power tool striker during operation; the device solves the problems of being unable to test the wear-resistance of the power tool striker under high temperature, the friction disk on the wear-resistance testing device being easily damaged by foreign matter and the inaccurate wear-resistance testing of the power tool striker.

[0008] The present invention provides a wear-resistant testing device for an electric tool striker, which is used to test the wear resistance of the electric tool striker; it comprises: a supporting drive part, a wear-resistant testing part, a connecting sealing part, a movable mounting part and a positioning clamping part; the wear-resistant testing part is installed on the supporting drive part, and the wear-resistant testing part is used to rub the electric tool striker; the connecting sealing part is installed on the wear-resistant testing part, and the connecting sealing part is used to connect the wear-resistant testing part with the supporting drive part, and the connecting sealing part is also used to seal the cooling water in the wear-resistant testing part; the movable mounting part is installed on the left side of the supporting drive part, and the movable mounting part is used to control the left and right positions of the electric tool striker; the positioning clamping part is installed on the movable mounting part, and the electric tool striker to be tested is installed on the positioning clamping part, and the positioning clamping part is used to fix the electric tool striker.

[0009] In at least some embodiments, the support drive unit includes: a support base, a motor, a positioning mounting ring and a guide funnel; the motor is fixedly mounted on the support base, and a connecting groove is provided on the output shaft of the motor; there are two positioning mounting rings, and the two positioning mounting rings are fixedly mounted on the output shaft of the motor; the guide funnel is fixedly mounted on the support base.

[0010] In at least some embodiments, the wear-resistant testing part includes: a mounting bracket and a circular hollow disk; the mounting bracket is rotatably mounted on the output shaft of the motor, and the mounting bracket is located between two positioning mounting rings; the circular hollow disk is fixedly mounted on the outside of the mounting bracket, and cooling water is provided inside the circular hollow disk; arc-shaped slots A are respectively provided on the upper and lower sides of the circular hollow disk, and the two arc-shaped slots A are located directly above the guide funnel.

[0011] In at least some embodiments, the wear resistance testing part further includes: a circular friction disc, a circular force ring and an arc-shaped protrusion; the circular friction disc is fixedly mounted on the outside of the circular hollow disc; the circular force ring is fixedly mounted on the bottom of the circular hollow disc; the arc-shaped protrusion is provided in a circle, and one circle of arc-shaped protrusions is fixedly mounted on the outside of the circular force ring.

[0012] In at least some embodiments, the connecting sealing part includes: a U-shaped frame, a movable connecting shaft and a reset clamp ring; the U-shaped frame is fixedly mounted on the mounting bracket; the movable connecting shaft is slidably mounted on the U-shaped frame and the mounting bracket, and the inner end of the movable connecting shaft is inserted into the connecting groove, and the connection between the movable connecting shaft and the connecting groove is an arc surface structure; the reset clamp ring is fixedly mounted on the outside of the movable connecting shaft.

[0013] In at least some embodiments, the connecting sealing part also includes: a support spring A, a U-shaped sealing frame and a sealing screw; the support spring A is sleeved on the outside of the movable connecting shaft, and the support spring A is located between the U-shaped frame and the reset clamp ring; the U-shaped sealing frame is slidably installed on the outside of the circular hollow disk, and the U-shaped sealing frame is also fixedly connected to the outer end of the movable connecting shaft; two arc-shaped slots B are provided on the U-shaped sealing frame, and the two arc-shaped slots B are the same size as the two arc-shaped slots A; when the U-shaped sealing frame contacts the inner wall of the circular hollow disk, the two arc-shaped slots B coincide with the two arc-shaped slots A; the sealing screw is threadedly connected to the U-shaped sealing frame, and the sealing screw is aligned with the arc-shaped slot A above.

[0014] In at least some embodiments, the movable mounting portion includes: a circular guide rod, a circular mounting rod and a force bearing; there are two circular guide rods, and the two circular guide rods are fixedly mounted on the left side of the support base; the circular mounting rod is slidably mounted on the outside of the two circular guide rods; the force bearing is mounted on the top of the circular mounting rod, and the force bearing is also in contact with the outer wall of the circular force ring.

[0015] In at least some embodiments, the movable mounting portion further includes: a limit baffle A and a support spring B; the limit baffle A is fixedly mounted on the left end of the two circular guide rods; there are two support springs B, and the two support springs B are sleeved on the outside of the two circular guide rods, and the two support springs B are located between the circular mounting rod and the limit baffle A.

[0016] In at least some embodiments, the positioning clamping portion includes: a rectangular mounting plate, a circular guide shaft, a mounting vertical plate and a limit baffle B; the rectangular mounting plate is fixedly mounted on the left side of the circular mounting rod; there are two circular guide shafts, and the two circular guide shafts are fixedly mounted on the left side of the rectangular mounting plate; the mounting vertical plate is slidably mounted on the outside of the two circular guide shafts; the limit baffle B is fixedly mounted on the left end of the two circular guide shafts.

[0017] In at least some embodiments, the positioning clamping part also includes: a support spring C, a movable positioning plate and a clamping screw; there are two support springs C, and the two support springs C are sleeved on the outside of the two circular guide shafts, and the two support springs C are located between the mounting vertical plate and the limit baffle B; the movable positioning plate is inserted and installed on the top of the mounting vertical plate; the clamping screw is threadedly connected to the movable positioning plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, when the inner end of the movable connecting shaft is inserted into the connecting groove, the output shaft of the motor can drive the mounting bracket to rotate, thereby realizing the automatic wear resistance test of the circular friction disc on the power tool striker; the provision of cooling water has a cooling effect on the circular friction disc, thereby preventing long-term high temperature from affecting the service life of the circular friction disc; at the same time, the cooling water in the circular hollow disc only cools the circular friction disc, but does not cool the power tool striker, thereby facilitating the staff to know the wear resistance of the power tool striker under high temperature state, thereby making the wear resistance test of the power tool striker more accurate.

[0020] 2. In the present invention, when the circular friction disc contacts a foreign object, the friction force between the foreign object and the circular friction disc will be greater than the elastic force of the support spring A. At this time, when the output shaft of the motor continues to rotate, the movable connecting shaft will separate from the connecting groove, causing the circular friction disc to stop rotating and preventing damage to the circular friction disc. When the circular friction disc separates from the foreign object, the circular friction disc remains stationary under the action of the power tool striker. When the movable connecting shaft is aligned with the connecting groove, the movable connecting shaft is reinserted into the connecting groove under the action of the support spring A.

[0021] In addition, the setting of the U-shaped sealing frame seals the two arc-shaped slots A, preventing the cooling water in the circular hollow disk from flowing out through the two arc-shaped slots A during the wear resistance test of the electric tool striker; when the U-shaped sealing frame contacts the inner wall of the circular hollow disk, the two arc-shaped slots B overlap with the two arc-shaped slots A, facilitating the discharge of used cooling water in the circular hollow disk, and the discharged cooling water enters the guide funnel; the setting of the sealing screw makes it convenient for the staff to add new cooling water to the circular hollow disk through the threaded hole of the sealing screw.

[0022] 3. In the present invention, when the force bearing contacts the circular force ring, the power tool striker contacts the circular friction disk; when the force bearing contacts the arc-shaped protrusion, the power tool striker does not contact the circular friction disk, thereby achieving intermittent and repeated testing of the power tool striker and facilitating simulation of the reciprocating motion of the power tool striker during operation. The provision of two support springs B ensures that the force bearing is always in contact with the circular force ring or the arc-shaped protrusion.

[0023] In addition, the setting of the two support springs C ensures that the power tool striker is always in elastic contact with the circular friction disk; it is convenient for the staff to pre-fix the next power tool striker to be tested through another movable positioning plate and another clamping screw, thereby improving the installation efficiency of the power tool striker to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0025] The drawings described below only relate to some embodiments of the present invention, rather than limiting the present invention.

[0026] In the attached figure:

[0027] Figure 1 Shows a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 The present invention is shown Figure 1 Schematic diagram of the right side perspective structure;

[0029] Figure 3 It shows a schematic structural diagram of the support driving part of the present invention;

[0030] Figure 4 The present invention is shown Figure 1 Schematic diagram of the top perspective structure;

[0031] Figure 5 Shows a schematic structural diagram of the wear resistance test part of the present invention;

[0032] Figure 6 Shows a structural schematic diagram of the connection sealing portion of the present invention;

[0033] Figure 7 The present invention is shown Figure 1 Schematic diagram of the central cross-section structure;

[0034] Figure 8 The present invention is shown Figure 7 Schematic diagram of the local enlarged structure of area A in the middle;

[0035] Figure 9 It shows a schematic structural diagram of the movable mounting portion and the positioning clamping portion of the present invention;

[0036] Figure 10 The present invention is shown Figure 7 Schematic diagram of the locally enlarged structure of area B in the middle.

[0037] List of reference numerals:

[0038] 100, support drive unit; 101, support base; 102, motor; 1021, connection groove; 103, positioning mounting ring; 104, guide funnel;

[0039] 200, wear-resistant test unit; 201, mounting bracket; 202, circular hollow disc; 2021, arc-shaped slot A; 203, circular friction disc; 204, circular force ring; 205, arc-shaped protrusion;

[0040] 300, connecting seal; 301, U-shaped frame; 302, movable connecting shaft; 303, reset collar; 304, support spring A; 305, U-shaped sealing frame; 3051, arc-shaped slot B; 306, sealing screw;

[0041] 400, movable mounting portion; 401, circular guide rod; 402, circular mounting rod; 403, load bearing; 404, limit baffle A; 405, support spring B;

[0042] 500, positioning clamping part; 501, rectangular mounting plate; 502, circular guide shaft; 503, mounting vertical plate; 504, limit baffle B; 505, support spring C; 506, movable positioning plate; 507, clamping screw;

[0043] 600. Power tool striker. DETAILED DESCRIPTION

[0044] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0045] Example: Please refer to Figures 1 to 10 As shown: The present invention provides a wear resistance testing device for a power tool striker, which is used to test the wear resistance of a power tool striker 600; it includes: a support driving part 100, a wear resistance testing part 200, a connecting sealing part 300, a movable mounting part 400 and a positioning clamping part 500; the wear resistance testing part 200 is installed on the support driving part 100, and the wear resistance testing part 200 is used to rub the power tool striker 600; the connecting sealing part 300 is installed on the wear resistance testing part 200, and the connecting sealing part 300 is used to The wear test part 200 is connected to the support drive part 100, and the connecting sealing part 300 is also used to seal the cooling water in the wear test part 200; the movable mounting part 400 is installed on the left side of the support drive part 100, and the movable mounting part 400 is used to control the left and right positions of the power tool striker 600; the positioning clamping part 500 is installed on the movable mounting part 400, and the power tool striker 600 to be tested is installed on the positioning clamping part 500, and the positioning clamping part 500 is used to fix the power tool striker 600.

[0046] In the embodiment of the present disclosure, Figure 3 and Figure 5As shown, the support drive unit 100 includes: a support base 101, a motor 102, a positioning mounting ring 103 and a guide funnel 104; the motor 102 is fixedly mounted on the support base 101, and a connecting groove 1021 is provided on the output shaft of the motor 102; there are two positioning mounting rings 103, and the two positioning mounting rings 103 are fixedly mounted on the output shaft of the motor 102; the guide funnel 104 is fixedly mounted on the support base 101;

[0047] The wear-resistant test part 200 includes: a mounting bracket 201 and a circular hollow disk 202; the mounting bracket 201 is rotatably mounted on the output shaft of the motor 102, and the mounting bracket 201 is located between the two positioning mounting rings 103; the circular hollow disk 202 is fixedly mounted on the outside of the mounting bracket 201, and cooling water is provided inside the circular hollow disk 202; arc-shaped slots A2021 are respectively provided on the upper and lower sides of the circular hollow disk 202, and the two arc-shaped slots A2021 are located directly above the guide funnel 104; the wear-resistant test part 200 also includes: a circular friction disk 203, a circular force ring 204 and an arc-shaped protrusion 205; the circular friction disk 203 is fixedly mounted on the outside of the circular hollow disk 202; the circular force ring 204 is fixedly mounted on the bottom of the circular hollow disk 202; the arc-shaped protrusion 205 is provided in a circle, and a circle of arc-shaped protrusions 205 is fixedly mounted on the outside of the circular force ring 204;

[0048] Its specific function is: because the mounting bracket 201 is rotatably mounted on the output shaft of the motor 102, and the mounting bracket 201 is located between the two positioning mounting rings 103, when the inner end of the movable connecting shaft 302 is inserted into the connecting groove 1021, the output shaft of the motor 102 can drive the mounting bracket 201 to rotate, thereby realizing the automatic wear resistance test of the circular friction disc 203 on the power tool striker 600; and because the circular hollow disc 202 is fixedly mounted on the outside of the mounting bracket 201, and the circular friction disc 203 is fixedly mounted on the outside of the circular hollow disc 202, and cooling water is provided inside the circular hollow disc 202, the circular friction disc 203 is cooled, thereby preventing long-term high temperature from affecting the service life of the circular friction disc 203; at the same time, the cooling water in the circular hollow disc 202 only cools the circular friction disc 203, and does not cool the power tool striker 600, which makes it easy for staff to know the wear resistance of the power tool striker 600 under high temperature, so that the wear resistance test accuracy of the power tool striker 600 is higher.

[0049] In the embodiment of the present disclosure, Figure 6 and Figure 8As shown, the connection sealing part 300 includes: a U-shaped frame 301, a movable connection shaft 302 and a reset collar 303; the U-shaped frame 301 is fixedly mounted on the mounting bracket 201; the movable connection shaft 302 is slidably mounted on the U-shaped frame 301 and the mounting bracket 201, and the inner end of the movable connection shaft 302 is inserted into the connecting groove 1021, and the connection between the movable connection shaft 302 and the connecting groove 1021 is an arc surface structure; the reset collar 303 is fixedly mounted on the outside of the movable connection shaft 302; the connection sealing part 300 also includes: a support spring A304, a U-shaped sealing frame 305 and a sealing screw 306; the support spring A304 is sleeved on the outside of the movable connection shaft 302, and The support spring A304 is located between the U-shaped frame 301 and the reset collar 303. The U-shaped sealing frame 305 is slidably mounted on the outside of the circular hollow disk 202 and is also fixedly connected to the outer end of the movable connecting shaft 302. The U-shaped sealing frame 305 has two arcuate slots B3051, which are the same size as the two arcuate slots A2021. When the U-shaped sealing frame 305 contacts the inner wall of the circular hollow disk 202, the two arcuate slots B3051 coincide with the two arcuate slots A2021. The sealing screw 306 is threadedly connected to the U-shaped sealing frame 305 and is aligned with the upper arcuate slot A2021.

[0050] Its specific function is as follows: since the movable connecting shaft 302 is slidably mounted on the U-shaped frame 301 and the mounting bracket 201, and the inner end of the movable connecting shaft 302 is inserted into the connecting groove 1021, and the connection between the movable connecting shaft 302 and the connecting groove 1021 is a curved surface structure, when the circular friction disc 203 contacts a foreign object, the friction force between the foreign object and the circular friction disc 203 will be greater than the elastic force of the supporting spring A304. At this time, when the output shaft of the motor 102 continues to rotate, the movable connecting shaft 302 will separate from the connecting groove 1021, causing the circular friction disc 203 to stop rotating, thereby avoiding The circular friction disc 203 is prevented from being damaged. Since the reset collar 303 is fixedly mounted on the outside of the movable connecting shaft 302, and the support spring A304 is sleeved on the outside of the movable connecting shaft 302, and the support spring A304 is located between the U-shaped frame 301 and the reset collar 303, when the circular friction disc 203 is separated from the foreign matter, the circular friction disc 203 remains stationary under the action of the power tool striker 600. When the movable connecting shaft 302 is aligned with the connecting groove 1021, the movable connecting shaft 302 is inserted into the connecting groove 1021 again under the action of the support spring A304.

[0051] In addition, since arc-shaped slots A2021 are respectively provided on the upper and lower sides of the circular hollow disk 202, and the U-shaped sealing frame 305 is slidably installed on the outside of the circular hollow disk 202, and the U-shaped sealing frame 305 is also fixedly connected to the outer end of the movable connecting shaft 302, it plays a sealing role on the two arc-shaped slots A2021, thereby preventing the cooling water in the circular hollow disk 202 from flowing out through the two arc-shaped slots A2021 during the wear resistance test of the electric tool striker 600; and since two arc-shaped slots B3051 are provided on the U-shaped sealing frame 305, and the two arc-shaped slots B 3051 is the same size as the two arc-shaped slots A2021, and the two arc-shaped slots A2021 are located directly above the guide funnel 104. When the U-shaped sealing frame 305 contacts the inner wall of the circular hollow disk 202, the two arc-shaped slots B3051 overlap with the two arc-shaped slots A2021, facilitating the discharge of used cooling water from the circular hollow disk 202, and the discharged cooling water enters the guide funnel 104. The provision of the sealing screw 306 facilitates the staff to add new cooling water to the circular hollow disk 202 through the threaded hole of the sealing screw 306.

[0052] Among them, when the cooling water in the circular hollow disk 202 needs to be discharged, the staff needs to appropriately adjust the angle of the circular hollow disk 202 to ensure that the two arc-shaped slots A2021 are located directly above the guide funnel 104; at the same time, when the movable connecting shaft 302 is separated from the connecting groove 1021, the two arc-shaped slots B3051 do not overlap with the two arc-shaped slots A2021. Only when the U-shaped sealing frame 305 contacts the inner wall of the circular hollow disk 202, the used cooling water will flow out.

[0053] In the embodiment of the present disclosure, Figure 9 and Figure 10 As shown, the movable mounting portion 400 includes: a circular guide rod 401, a circular mounting rod 402 and a force bearing 403; there are two circular guide rods 401, and the two circular guide rods 401 are fixedly mounted on the left side of the support base 101; the circular mounting rod 402 is slidably mounted on the outside of the two circular guide rods 401; the force bearing 403 is mounted on the top end of the circular mounting rod 402, and the force bearing 403 is also in contact with the outer wall of the circular force ring 204; the movable mounting portion 400 also includes: a limit baffle A404 and a support spring B405; the limit baffle A404 is fixedly mounted on the left end of the two circular guide rods 401; there are two support springs B405, and the two support springs B405 are sleeved on the outside of the two circular guide rods 401, and the two support springs B405 are located between the circular mounting rod 402 and the limit baffle A404;

[0054] The positioning clamping part 500 includes: a rectangular mounting plate 501, a circular guide shaft 502, a mounting vertical plate 503 and a limit baffle B504; the rectangular mounting plate 501 is fixedly mounted on the left side of the circular mounting rod 402; there are two circular guide shafts 502, and the two circular guide shafts 502 are fixedly mounted on the left side of the rectangular mounting plate 501; the mounting vertical plate 503 is slidably mounted on the outside of the two circular guide shafts 502; the limit baffle B504 is fixedly mounted on the left end of the two circular guide shafts 502; the positioning clamping part 500 also includes: a support spring C505, a movable positioning plate 506 and a clamping screw 507; there are two support springs C505, and the two support springs C505 are sleeved on the outside of the two circular guide shafts 502, and the two support springs C505 are located between the mounting vertical plate 503 and the limit baffle B504; the movable positioning plate 506 is inserted and mounted on the top end of the mounting vertical plate 503; the clamping screw 507 is threadedly connected to the movable positioning plate 506;

[0055] Its specific function is as follows: since the circular force-bearing ring 204 is fixedly mounted on the bottom of the circular hollow disk 202, and a circle of arc-shaped protrusions 205 is fixedly mounted on the outside of the circular force-bearing ring 204, and the force-bearing bearing 403 is also in contact with the outer wall of the circular force-bearing ring 204, when the force-bearing bearing 403 is in contact with the circular force-bearing ring 204, the electric tool striker 600 is in contact with the circular friction disk 203; when the force-bearing bearing 403 is in contact with the arc-shaped protrusions 205, the electric tool striker 600 is not in contact with the circular friction disk 203. The circular mounting rod 402 is slidably mounted on the outside of the two circular guide rods 401, and the two support springs B405 are sleeved on the outside of the two circular guide rods 401. The two support springs B405 are located between the circular mounting rod 402 and the limit baffle A404, thereby ensuring that the force bearing 403 is always in contact with the circular force ring 204 or the arc-shaped protrusion 205.

[0056] In addition, since the mounting vertical plate 503 is slidably mounted on the outside of the two circular guide shafts 502, and the two support springs C505 are sleeved on the outside of the two circular guide shafts 502, and the two support springs C505 are located between the mounting vertical plate 503 and the limit baffle B504, it is ensured that the power tool striker 600 is always in elastic contact with the circular friction disk 203; and since the movable positioning plate 506 is inserted and mounted on the top of the mounting vertical plate 503, and the clamping screw 507 is threadedly connected to the movable positioning plate 506, it is convenient for the staff to fix the next power tool striker 600 to be tested in advance through another movable positioning plate 506 and another clamping screw 507, thereby improving the installation efficiency of the power tool striker 600 to be tested;

[0057] Among them, the distance between the left side of the power tool striker 600 and the left side of the movable positioning plate 506 after clamping needs to be ensured to be the same, so that after the power tool striker 600 to be tested is installed, the compression degree of the two support springs C505 is the same as the previous compression degree, so as to avoid the elastic force of the two support springs C505 affecting the wear resistance test results of the power tool striker 600, and the elastic force of the two support springs C505 is appropriately adjusted according to the test requirements to ensure that the power tool striker 600 can effectively contact the circular friction disk 203, so that the power tool striker 600 will not retract after contacting the circular friction disk 203.

[0058] The specific usage and function of this embodiment are as follows:

[0059] When the present invention is used, the staff first fixes the support base 101 with bolts, and then connects the guide funnel 104 to the external drainage hose. When the wear resistance test is carried out, the motor 102 is started. When the circular friction disc 203 contacts the foreign object, the friction force between the foreign object and the circular friction disc 203 will be greater than the elastic force of the support spring A304. At this time, when the output shaft of the motor 102 continues to rotate, the movable connecting shaft 302 will separate from the connecting groove 1021, so that the circular friction disc 203 stops rotating, avoiding damage to the circular friction disc 203; when the circular friction disc 203 is separated from the foreign object, the circular friction disc 203 remains motionless under the action of the power tool striker 600, and when the movable connecting shaft 302 is aligned with the connecting groove 1021, the movable connecting shaft 302 is The connecting shaft 302 is inserted into the connecting groove 1021 again under the action of the support spring A304; when the force bearing 403 contacts the circular force ring 204, the power tool striker 600 contacts the circular friction disk 203; when the force bearing 403 contacts the arc-shaped protrusion 205, the power tool striker 600 does not contact the circular friction disk 203, thereby realizing intermittent repeated testing of the power tool striker 600, and facilitating the simulation of the reciprocating motion of the power tool striker 600 during operation; the provision of the two support springs B405 ensures that the force bearing 403 is always in contact with the circular force ring 204 or the arc-shaped protrusion 205; the provision of the two support springs C505 ensures that the power tool striker 600 is always in elastic contact with the circular friction disk 203;

[0060] When the cooling water in the circular hollow disk 202 needs to be replaced, the staff moves the U-shaped sealing frame 305 so that the U-shaped sealing frame 305 contacts the inner wall of the circular hollow disk 202; when the U-shaped sealing frame 305 contacts the inner wall of the circular hollow disk 202, the two arc-shaped slots B3051 coincide with the two arc-shaped slots A2021, making it easy for the used cooling water in the circular hollow disk 202 to be discharged, and the discharged cooling water enters the guide funnel 104; the provision of the sealing screw 306 makes it convenient for the staff to add new cooling water to the circular hollow disk 202 through the threaded hole of the sealing screw 306;

[0061] When the cooling water in the circular hollow disk 202 needs to be discharged, the staff appropriately adjusts the angle of the circular hollow disk 202 to ensure that the two arc-shaped slots A2021 are located directly above the guide funnel 104; then the U-shaped sealing frame 305 is moved to make the U-shaped sealing frame 305 contact the inner wall of the circular hollow disk 202, and the two arc-shaped slots B3051 overlap with the two arc-shaped slots A2021, so that the used cooling water in the circular hollow disk 202 can be discharged, and the discharged cooling water enters the guide funnel 104;

[0062] When pre-clamping the power tool striker 600, it is necessary to ensure that the distance between the left side of the power tool striker 600 and the left side of the movable positioning plate 506 needs to be kept the same, so that after the power tool striker 600 to be tested is installed, the compression degree of the two support springs C505 is the same as the previous compression degree, so as to avoid the elastic force of the two support springs C505 affecting the wear resistance test results of the power tool striker 600.

[0063] In this article, there are several points to note:

[0064] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0065] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0066] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A wear resistance testing device for a power tool striker, used for testing the wear resistance of a power tool striker (600); comprising: A support drive portion (100), a wear-resistant test portion (200), a connection sealing portion (300), a movable mounting portion (400) and a positioning clamping portion (500); characterized in that the wear-resistant test portion (200) is mounted on the support drive portion (100), and the wear-resistant test portion (200) is used to rub the electric tool striker (600); the connection sealing portion (300) is mounted on the wear-resistant test portion (200), and the connection sealing portion (300) is used to connect the wear-resistant test portion (200) to the support drive portion (100). , and the connecting sealing portion (300) is also used to seal the cooling water in the wear-resistant test portion (200); the movable mounting portion (400) is mounted on the left side of the supporting driving portion (100), and the movable mounting portion (400) is used to control the left and right positions of the electric tool striker (600); the positioning clamping portion (500) is mounted on the movable mounting portion (400), and the electric tool striker (600) to be tested is mounted on the positioning clamping portion (500), and the positioning clamping portion (500) is used to fix the electric tool striker (600).

2. The wear resistance testing device for a power tool striker according to claim 1, characterized in that: The support drive unit (100) comprises: a support base (101), a motor (102), a positioning mounting ring (103) and a guide funnel (104); the motor (102) is fixedly mounted on the support base (101), and a connecting groove (1021) is provided on the output shaft of the motor (102); there are two positioning mounting rings (103) in total, and the two positioning mounting rings (103) are fixedly mounted on the output shaft of the motor (102); and the guide funnel (104) is fixedly mounted on the support base (101).

3. The wear resistance testing device for a power tool striker according to claim 2, characterized in that: The wear-resistant test part (200) comprises: a mounting bracket (201) and a circular hollow disk (202); the mounting bracket (201) is rotatably mounted on the output shaft of the motor (102), and the mounting bracket (201) is located between two positioning mounting rings (103); the circular hollow disk (202) is fixedly mounted on the outside of the mounting bracket (201), and cooling water is provided inside the circular hollow disk (202); arc-shaped slots A (2021) are respectively provided on the upper and lower sides of the circular hollow disk (202), and the two arc-shaped slots A (2021) are located directly above the guide funnel (104).

4. The wear resistance testing device for a power tool striker according to claim 3, characterized in that: The wear-resistant test part (200) further comprises: a circular friction disc (203), a circular force-bearing ring (204) and an arc-shaped protrusion (205); the circular friction disc (203) is fixedly mounted on the outside of the circular hollow disc (202); the circular force-bearing ring (204) is fixedly mounted on the bottom of the circular hollow disc (202); and the arc-shaped protrusion (205) is provided in one circle, and one circle of arc-shaped protrusions (205) is fixedly mounted on the outside of the circular force-bearing ring (204).

5. The wear resistance testing device for a power tool striker according to claim 3, characterized in that: The connection sealing portion (300) comprises: a U-shaped frame (301), a movable connection shaft (302) and a reset collar (303); the U-shaped frame (301) is fixedly mounted on the mounting bracket (201); the movable connection shaft (302) is slidably mounted on the U-shaped frame (301) and the mounting bracket (201), and the inner end of the movable connection shaft (302) is inserted into the connection groove (1021), and the connection between the movable connection shaft (302) and the connection groove (1021) is a curved surface structure; the reset collar (303) is fixedly mounted on the outside of the movable connection shaft (302).

6. The wear resistance testing device for a power tool striker according to claim 5, characterized in that: The connecting sealing portion (300) further comprises: a supporting spring A (304), a U-shaped sealing frame (305) and a sealing screw (306); the supporting spring A (304) is sleeved on the outside of the movable connecting shaft (302), and the supporting spring A (304) is located between the U-shaped frame (301) and the reset collar (303); the U-shaped sealing frame (305) is slidably mounted on the outside of the circular hollow disk (202), and the U-shaped sealing frame (305) is also fixedly connected to the outer end of the movable connecting shaft (302); Two arc-shaped slots B (3051) are formed on the U-shaped sealing frame (305), and the two arc-shaped slots B (3051) are of the same size as the two arc-shaped slots A (2021); when the U-shaped sealing frame (305) contacts the inner wall of the circular hollow disk (202), the two arc-shaped slots B (3051) coincide with the two arc-shaped slots A (2021); the sealing screw (306) is threadedly connected to the U-shaped sealing frame (305), and the sealing screw (306) is aligned with the upper arc-shaped slot A (2021).

7. The wear resistance testing device for a power tool striker according to claim 4, characterized in that: The movable mounting portion (400) comprises: a circular guide rod (401), a circular mounting rod (402) and a force bearing (403); there are two circular guide rods (401), and the two circular guide rods (401) are fixedly mounted on the left side of the support base (101); the circular mounting rod (402) is slidably mounted on the outside of the two circular guide rods (401); the force bearing (403) is mounted on the top end of the circular mounting rod (402), and the force bearing (403) is also in contact with the outer wall of the circular force ring (204).

8. The wear resistance testing device for a power tool striker according to claim 7, characterized in that: The movable mounting portion (400) further comprises: a limiting baffle A (404) and a supporting spring B (405); the limiting baffle A (404) is fixedly mounted on the left end of the two circular guide rods (401); a total of two supporting springs B (405) are provided, and the two supporting springs B (405) are sleeved on the outside of the two circular guide rods (401), and the two supporting springs B (405) are located between the circular mounting rods (402) and the limiting baffle A (404).

9. The wear resistance testing device for a power tool striker according to claim 7, characterized in that: The positioning clamping portion (500) comprises: a rectangular mounting plate (501), a circular guide shaft (502), a mounting vertical plate (503) and a limit baffle B (504); the rectangular mounting plate (501) is fixedly mounted on the left side of the circular mounting rod (402); there are two circular guide shafts (502), and the two circular guide shafts (502) are fixedly mounted on the left side of the rectangular mounting plate (501); the mounting vertical plate (503) is slidably mounted on the outside of the two circular guide shafts (502); and the limit baffle B (504) is fixedly mounted on the left ends of the two circular guide shafts (502).

10. The wear resistance testing device for a power tool striker according to claim 9, characterized in that: The positioning clamping portion (500) further comprises: a support spring C (505), a movable positioning plate (506) and a clamping screw (507); two support springs C (505) are provided, and the two support springs C (505) are sleeved on the outside of the two circular guide shafts (502), and the two support springs C (505) are located between the mounting vertical plate (503) and the limit baffle B (504); the movable positioning plate (506) is inserted and mounted on the top end of the mounting vertical plate (503); and the clamping screw (507) is threadedly connected to the movable positioning plate (506).

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