A fatigue testing device for robot plastic parts

Abstract

This utility model provides a fatigue testing device for robot plastic parts, belonging to the technical field of fatigue testing devices. It includes: a base; two support blocks symmetrically welded to the bottom end face of the base, both of which are in contact with the ground; a sealing part installed on the base, the sealing part consisting of a first hydraulic cylinder and a sealing cover; and two first hydraulic cylinders symmetrically fixed to the upper end face of the base, both driven by an external hydraulic pump. In terms of improving testing accuracy, the sealing part on the base, driven by the first hydraulic cylinder, inserts the sealing cover into a U-shaped sealing groove. During heating testing, this effectively reduces heat dissipation and minimizes the interference of temperature fluctuations on the test results, significantly improving testing accuracy. Simultaneously, the heating wire fixed on the base is located below the plastic part, allowing the plastic part to be exposed to different temperatures after power is applied. Combined with the use of the sealing cover, fatigue testing of the plastic part at different temperatures is achieved, effectively expanding the testing range.

Description

Technical Field

[0001] This utility model relates to the field of fatigue testing device technology, and in particular to a fatigue resistance testing device for robot plastic parts. Background Technology

[0002] Robot plastic parts refer to various components used in robots, which are made from plastic raw materials and manufactured through processes such as injection molding and blow molding. When fatigue testing robot plastic parts, testing equipment is required.

[0003] Existing devices cannot perform fatigue testing at different temperatures, resulting in a narrow testing range. Furthermore, the existing devices have a simple sealing structure, which affects the accuracy of the testing. Utility Model Content

[0004] This utility model relates to a fatigue testing device for robot plastic parts, which solves the problems of existing devices being unable to perform fatigue testing at different temperatures and having a narrow testing range; and existing devices having a simple sealing structure, which affects the accuracy of the test.

[0005] This utility model provides a fatigue resistance testing device for robot plastic parts, specifically including: a base; two support blocks are symmetrically welded to the bottom end face of the base, both support blocks are in contact with the ground, a sealing part is installed on the base, the sealing part consists of a first hydraulic cylinder and a sealing cover, two first hydraulic cylinders are symmetrically fixed to the upper end face of the base, both first hydraulic cylinders are driven by an external hydraulic pump, and the protruding ends of the two first hydraulic cylinders are fixed to the sealing cover; a U-shaped sealing groove is opened on the upper end face of the base, and the sealing cover is inserted into the sealing groove.

[0006] Furthermore, a clamping part is installed on the base, which consists of a fixed clamp, a movable clamp, a second hydraulic cylinder, and a protrusion. The fixed clamp is fixed on the upper end face of the base, and the movable clamp slides on the base. A plastic part is clamped between the fixed clamp and the movable clamp. The second hydraulic cylinder is fixed on the fixed clamp, and the extended end of the second hydraulic cylinder is fixed on the movable clamp.

[0007] Furthermore, both the fixed clamp and the movable clamp have protrusions welded at equal intervals at their clamping positions, and the protrusions are triangular prism-shaped structures.

[0008] Furthermore, a detection unit is installed on the base. The detection unit consists of a mounting arm, a sliding frame, a detection block, a spring, a motor, and a pressing block. The mounting arm is fixed to the upper end face of the base, and the sliding frame slides on the mounting arm. A detection block is welded to one end of the sliding frame, and the detection block contacts the upper end face of the plastic part.

[0009] Furthermore, two springs are sleeved on the sliding frame, which serve as the upward reset components of the sliding frame. A motor is fixed on the mounting arm, and the motor is electrically connected to the external control switch and external power supply. A pressing block is fixed on the output shaft of the motor, and the pressing block is located above the sliding frame. When the motor rotates, the pressing block and the sliding frame are in continuous elastic contact.

[0010] Furthermore, a heating wire is fixed on the base, and the heating wire is electrically connected to the external control switch and the external power supply. The heating wire is located below the plastic part.

[0011] This utility model provides a fatigue resistance testing device for robot plastic parts, which has the following beneficial effects: In terms of improving detection accuracy, the sealing part on the base is driven by the first hydraulic cylinder to insert the sealing cover into the U-shaped sealing groove. During heating detection, this effectively reduces heat dissipation and minimizes the interference of temperature fluctuations on the detection results, thus significantly improving detection accuracy. At the same time, the heating wire fixed on the base is located below the plastic part. After the power is turned on, the plastic part can be exposed to different temperatures. Combined with the use of the sealing cover, fatigue resistance testing of plastic parts at different temperatures is realized, effectively expanding the detection range and meeting diverse testing needs.

[0012] Regarding the applicability and stability of clamping, the second hydraulic cylinder in the clamping part can drive the movable clamp to slide, flexibly adjusting the distance between the fixed clamp and the movable clamp, which can adapt to the clamping requirements of plastic parts of different lengths. Furthermore, the triangular prism-shaped protrusions welded at equal intervals at the clamping positions of both the fixed clamp and the movable clamp can increase the contact friction with the plastic parts after clamping, significantly improving the stability of the plastic parts clamping and preventing the parts from shifting during the testing process and affecting the test results.

[0013] In terms of testing efficiency and effectiveness, the testing unit uses a motor to drive the extrusion block to rotate, so that the extrusion block and the sliding frame are in continuous elastic contact. With the help of the spring to reset the sliding frame upward, the sliding frame and the testing block are driven to move up and down repeatedly, so that the testing block repeatedly extrudes the plastic parts, thus efficiently realizing the fatigue resistance testing of the plastic parts. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0016] In the attached diagram: Figure 1 A perspective view of the fatigue resistance testing device for robot plastic parts of this utility model is shown; Figure 2 This is a perspective view of a partially cut-open part of the fatigue resistance testing device for robot plastic parts of this utility model; Figure 3 This utility model is shown Figure 2 Enlarged view of point A; Figure 4 This is a perspective view of a partially cut-open part of the fatigue resistance testing device for robot plastic parts of this utility model; Figure 5 This is a perspective view of the sealing part of this utility model after it has been cut open; Figure 6 A perspective view of the detection part of this utility model is shown.

[0017] List of reference numerals 1. Base; 101. Support block; 102. Sealing groove; 2. Sealing part; 201. First hydraulic cylinder; 202. Sealing cover; 3. Clamping part; 301. Fixed clamp; 302. Movable clamp; 303. Second hydraulic cylinder; 304. Protrusion; 4. Detection part; 401. Mounting arm; 402. Sliding frame; 403. Detection block; 404. Spring; 405. Motor; 406. Extrusion block; 5. Heating wire; 6. Plastic parts. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1: Please refer to Figures 1 to 6 : This utility model proposes a fatigue resistance testing device for robot plastic parts, comprising: a base 1; two support blocks 101 are symmetrically welded to the bottom end face of the base 1, both support blocks 101 are in contact with the ground; a sealing part 2 is installed on the base 1, the sealing part 2 is composed of a first hydraulic cylinder 201 and a sealing cover 202; two first hydraulic cylinders 201 are symmetrically fixed to the upper end face of the base 1, both first hydraulic cylinders 201 are driven by an external hydraulic pump, and the protruding ends of the two first hydraulic cylinders 201 are fixed to the sealing cover 202; a U-shaped sealing groove 102 is opened on the upper end face of the base 1, and the sealing cover 202 is inserted into the sealing groove 102. When testing under heating, the sealing cover 202 can reduce heat dissipation and improve the testing accuracy.

[0020] The base 1 is equipped with a clamping part 3, which consists of a fixed clamp 301, a movable clamp 302, a second hydraulic cylinder 303, and a protrusion 304. The fixed clamp 301 is fixed on the upper surface of the base 1, and the movable clamp 302 slides on the base 1. The plastic part 6 is clamped between the fixed clamp 301 and the movable clamp 302. The second hydraulic cylinder 303 is fixed on the fixed clamp 301, and the extended end of the second hydraulic cylinder 303 is fixed on the movable clamp 302. During use, the plastic part 6 can be clamped by the fixed clamp 301 and the movable clamp 302. Driving the second hydraulic cylinder 303 to extend and retract can adjust the distance between the fixed clamp 301 and the movable clamp 302, which can accommodate the clamping of plastic parts 6 of different lengths.

[0021] The base 1 is equipped with a detection unit 4, which consists of a mounting arm 401, a sliding frame 402, a detection block 403, a spring 404, a motor 405, and a pressing block 406. The mounting arm 401 is fixed on the upper surface of the base 1, and the sliding frame 402 slides on the mounting arm 401. The detection block 403 is welded to one end of the lower part of the sliding frame 402, and the detection block 403 contacts the upper surface of the plastic part 6.

[0022] Two springs 404 are sleeved on the sliding frame 402, and the springs 404 are the upward reset components of the sliding frame 402. A motor 405 is fixed on the mounting arm 401. The motor 405 is electrically connected to the external control switch and the external power supply. A pressing block 406 is fixed on the output shaft of the motor 405. The pressing block 406 is located above the sliding frame 402. When the motor 405 rotates, the pressing block 406 and the sliding frame 402 are in continuous elastic contact. During the test, the driving motor 405 rotates, and the motor 405 drives the pressing block 406 to rotate. Under the pressure of the pressing block 406, the sliding frame 402 and the detection block 403 move up and down reciprocally. At this time, the detection block 403 repeatedly presses the plastic part 6, which can realize the fatigue resistance test of the plastic part 6.

[0023] The base 1 is fixed with a heating wire 5, which is electrically connected to the control switch of the external device and the external power supply. The heating wire 5 is located below the plastic part 6. When in use, the power supply of the heating wire 5 is turned on, and the heat generated by the heating wire 5 comes into contact with the plastic part 6. Then the sealing cover 202 is closed. At this time, the detection of the plastic part 6 at different temperatures is realized, thus expanding the detection range.

[0024] Example 2, based on Example 1, such as Figures 1 to 6 As shown, both the fixed clamp 301 and the movable clamp 302 have protrusions 304 welded at equal intervals at their clamping positions. The protrusions 304 are triangular prisms. After the plastic part 6 is clamped, the stability of the plastic part 6 can be improved by the action of the protrusions 304.

[0025] The working principle of this embodiment is as follows: In use, the plastic part 6 is first placed between the fixed clamp 301 and the movable clamp 302 on the base 1. The second hydraulic cylinder 303 is driven to extend and retract to adjust the distance between the two clamps. The triangular prism-shaped protrusions 304 on the clamps securely hold the plastic part 6, accommodating plastic parts 6 of different lengths. Then, the motor 405 on the mounting arm 401 is turned on. The motor 405 drives the extrusion block 406 on the output shaft to rotate, causing the extrusion block 406 to continuously and elastically contact the sliding frame 402. The sliding frame 402... The pressure causes the detection block 403 below to move up and down repeatedly, repeatedly squeezing the plastic part 6 to complete the fatigue test. During the test, the spring 404 on the sliding frame 402 plays an upward reset role. If the test needs to be performed under heating, the power supply of the heating wire 5 located below the plastic part 6 on the base 1 is turned on, so that it generates heat to act on the plastic part 6. At the same time, the two first hydraulic cylinders 201 on the base 1 are driven by the external hydraulic pump, so that the sealing cover 202 is inserted into the U-shaped sealing groove 102 of the base 1 to reduce heat dissipation.

Claims

1. A fatigue resistance testing device for robot plastic parts, comprising: The base (1) has two support blocks (101) symmetrically welded to its bottom end. Both support blocks (101) are in contact with the ground. The base (1) is characterized by having a sealing part (2) installed on it. The sealing part (2) consists of a first hydraulic cylinder (201) and a sealing cover (202). The upper end of the base (1) has two first hydraulic cylinders (201) symmetrically fixed. Both first hydraulic cylinders (201) are driven by an external hydraulic pump. The protruding ends of the two first hydraulic cylinders (201) are fixed on the sealing cover (202). A sealing groove (102) with a U-shape structure is opened on the upper end of the base (1). The sealing cover (202) is inserted into the sealing groove (102).

2. The fatigue resistance testing device for robot plastic parts according to claim 1, characterized in that, The base (1) is equipped with a clamping part (3), which consists of a fixed clamp (301), a movable clamp (302), a second hydraulic cylinder (303) and a protrusion (304). The fixed clamp (301) is fixed on the upper surface of the base (1), and the movable clamp (302) slides on the base (1). A plastic part (6) is clamped between the fixed clamp (301) and the movable clamp (302). The second hydraulic cylinder (303) is fixed on the fixed clamp (301), and the extended end of the second hydraulic cylinder (303) is fixed on the movable clamp (302).

3. The fatigue resistance testing device for robot plastic parts according to claim 2, characterized in that, The clamping positions of the fixed clamp (301) and the movable clamp (302) are all welded with protrusions (304) at equal intervals, and the protrusions (304) are triangular prism structures.

4. The fatigue resistance testing device for robot plastic parts according to claim 3, characterized in that, The base (1) is equipped with a detection unit (4), which consists of a mounting arm (401), a sliding frame (402), a detection block (403), a spring (404), a motor (405), and a pressing block (406). The mounting arm (401) is fixed on the upper surface of the base (1), and the sliding frame (402) slides on the mounting arm (401). The detection block (403) is welded to one end of the sliding frame (402), and the detection block (403) contacts the upper surface of the plastic part (6).

5. The fatigue resistance testing device for robot plastic parts according to claim 4, characterized in that, Two springs (404) are sleeved on the sliding frame (402). The springs (404) are the upward reset components of the sliding frame (402). A motor (405) is fixed on the mounting arm (401). The motor (405) is electrically connected to the control switch of the external device and the external power supply. A pressing block (406) is fixed on the output shaft of the motor (405). The pressing block (406) is located above the sliding frame (402). When the motor (405) rotates, the pressing block (406) and the sliding frame (402) are in continuous elastic contact.

6. The fatigue resistance testing device for robot plastic parts according to claim 5, characterized in that, A heating wire (5) is fixed on the base (1). The heating wire (5) is electrically connected to the control switch of the external device and the external power supply. The heating wire (5) is located below the plastic part (6).

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