Feeding device based on torsional pendulum type impact sample

Abstract

The utility model discloses a loading device based on a torsional pendulum type impact sample, and belongs to the technical field of impact test auxiliary equipment. The feeding device based on the torsional pendulum type impact sample comprises a first support, a second support, two third supports, two fourth supports, a fifth support, two sixth supports, four linear bearings, two cushion blocks, two rotating rods, eight rolling bearings, twelve first screws and sixteen second screws. The device can quickly achieve the purpose of feeding impact samples one by one, and has the characteristics of low manufacturing cost, simplicity in operation and good use effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of impact testing auxiliary equipment, specifically relating to a feeding device for a torsional pendulum impact specimen. Background Technology

[0002] Since steel products are inevitably subjected to impacts during use, Charpy V-type impact test specimens made from steel products are usually subjected to pendulum impact tests to detect the dynamic mechanical properties of steel materials under impact loads at room temperature or low temperature, ensuring the safe use of steel products. Because impact specimens are relatively small in size and numerous, frequent loading operations are required, affecting work efficiency and posing certain safety hazards. In view of this, some steel companies have developed automatic sample feeding devices for impact specimens. Although these devices have a relatively high degree of automation and can improve work efficiency, they all have certain limitations, mainly due to their relatively complex design structure and relatively high manufacturing cost. Therefore, it is necessary to develop a relatively economical impact specimen loading device.

[0003] After searching, three patent documents were found to be most relevant to this utility model technology. The specific contents are described below:

[0004] Patent document CN 201110089717.4 discloses an automatic sample feeding device for standard impact test specimens, which mainly includes a base, a sample guide frame, a sample cylinder, a stop block, a rotating arm, and a clamping mechanism. The device is exquisitely designed and ingeniously conceived. The notch center positioning method can achieve precise placement of impact test specimens, and the pneumatic method has a buffering effect and can achieve smooth transportation of impact test specimens. It has functions such as automatic filling, clamping, rotation, release, and positioning of impact test specimens, and has a relatively high degree of automation, which can improve work efficiency. However, the structure of the device is relatively complex and the manufacturing cost is relatively high.

[0005] Patent document CN 202022161633.4 discloses an automatic loading and unloading mechanism for an impact specimen processing center. It mainly includes a support, motor, output rod, support plate, round rod, slider, support rod, toothed plate, gear, shaft, housing, ring, hydraulic cylinder, bracket, clamping plate, and tray. This device is ingeniously designed. The combined use of the motor, output rod, support plate, round rod, and slider increases the lifting force of the robotic arm. The combined use of the motor, gear, shaft, toothed plate, support plate, housing, hydraulic cylinder, and bracket drives the clamping plate to rotate and guide its positioning. The combined use of the hydraulic cylinder, clamping plate, and tray lifts the sample, thus achieving automatic loading and unloading of the sample. However, this device is only suitable for loading impact specimens during processing, not for loading impact specimens during testing.

[0006] Patent document CN 202223001799.5 discloses an automatic sample feeding device for impact specimens, which mainly includes a support plate, a support block, a sample feeding block, a cryostat, a sample storage clamp, a screw, a push rod, a motor, a conveying roller, a spring, a movable plate, a pressing block, a sealing cover, a PLC controller, a friction block, and a buzzer. The device is exquisitely designed and ingeniously conceived. The combined use of the pressing block, sample storage clamp, and alcohol can reduce the sample temperature. The combined use of the motor, friction block, conveying roller, push rod, pressing block, spring, and sample storage clamp can achieve stable sample feeding. The combined use of the buzzer and cryostat can issue an alarm in a timely manner. The device has a relatively high degree of automation and can improve work efficiency. However, the structure of the device is relatively complex and the manufacturing cost is relatively high. Utility Model Content

[0007] To overcome one or more problems existing in the prior art, this utility model provides a feeding device based on a torsional pendulum impact specimen. The use of a pad enables both the relative arrangement of two third supports and the relative arrangement of four linear bearings. The use of a second screw enables the positioning connection of the linear bearings, third supports, and pad. The use of a fifth support enables the relative arrangement of two sixth supports. The use of a first screw enables both the positioning connection of the fifth and sixth supports and the positioning connection of the second and first supports. The combined use of the first support and the linear bearing enables the lifting movement of the third support. The use of a fourth support enables the linkage between the third and sixth supports. The use of a second support enables the positioning of the third support. The combined use of the third and sixth supports and the rolling bearing enables the positioning and torsional movement of the fourth support. The combined use of the sixth and fifth supports enables the clamping of the impact specimen. The combined use of the fifth support and the rotating rod enables the ejection of the impact specimen. Therefore, the device of this utility model has relatively good performance.

[0008] The technical solution adopted by this utility model to solve its technical problem is as follows.

[0009] The feeding device based on torsional impact specimen provided by this utility model includes a first support, a second support, two third supports, two fourth supports, a fifth support, two sixth supports, four linear bearings, two pads, two rotating rods, eight rolling bearings, twelve first screws and sixteen second screws.

[0010] The first bracket is composed of a first body and eight first protrusions connected together. The first body is a symmetrical rectangular parallelepiped structure. The eight first protrusions are divided into two groups and are located on the upper end face of the first body at the same time. The upper end face of the first body is symmetrically provided with four first screw holes, and the first screws are screwed into the first screw holes. The first protrusions are symmetrical cylindrical structures and are used to pass through the third through hole of the linear bearing.

[0011] The second bracket is composed of a second body, a second boss and a third boss connected together. The second body, the second boss and the third boss are all symmetrical rectangular parallelepiped structures. The second boss is located on the upper end face of the second body and the third boss is located on the upper end face of the second boss. The upper end face of the second body is symmetrically provided with four cylindrical first through holes, and the first screw is inserted into the first through holes.

[0012] The third bracket is composed of two fourth bodies, two fifth protrusions, and one sixth protrusion connected together. Each of the fourth bodies, fifth protrusions, and sixth protrusions is a symmetrical cuboid structure. The two fourth bodies are arranged opposite each other, and the two fifth protrusions are also arranged opposite each other and located on the front ends of the two fourth bodies. The sixth protrusion is located between the two fourth bodies. Each of the four corners of the upper surface of a fourth body has a cylindrical fourth through hole, through which the second screw passes. The upper surface of the fourth body also has four symmetrically arranged cylindrical fifth through holes, through which the fourth protrusion of the linear bearing passes. The upper surface of each fifth protrusion has a cylindrical first groove, through which the rolling bearing passes. A cylindrical sixth through hole is formed along the axis of the first groove, through which the bearing section of the fourth bracket passes.

[0013] The fourth support is composed of two fifth bodies, a seventh protrusion, and four bearing segments connected together. The fifth bodies and the seventh protrusion are both symmetrical cuboid structures. The two fifth bodies are arranged opposite each other, and the seventh protrusion is located between the two fifth bodies. The four bearing segments are arranged opposite each other in pairs and are located on the upper and lower four end faces of the two fifth bodies respectively. The bearing segments are symmetrical cylindrical structures used to pass through the rolling bearings.

[0014] The fifth support consists of a sixth body, two eighth protrusions, and a ninth protrusion connected together. The sixth body and the eighth protrusions are both symmetrical cuboid structures. The two eighth protrusions are arranged opposite each other and are located on the left and right end faces of the sixth body, respectively. The ninth protrusion is located on the front face of the sixth body. The upper end face of the sixth body has four symmetrical third screw holes, and the first screw is screwed into each of the third screw holes. The middle part of the front face of the eighth protrusion has a fourth screw hole, and the eighth body of the rotating rod is screwed into the fourth screw hole. The ninth protrusion is a symmetrical triangular prism structure used to pass through the V-shaped notch of the impact specimen.

[0015] The sixth bracket is composed of a seventh body, two tenth protrusions, and two eleventh protrusions connected together. The seventh body, the tenth protrusions, and the eleventh protrusions are all symmetrical cuboid structures. The two tenth protrusions are arranged opposite each other and are located on the rear end face of the seventh body, and the two eleventh protrusions are arranged opposite each other and are located on the front end face of the seventh body. The upper end face of the seventh body has four cylindrical eighth through holes symmetrically opened, and the first screw passes through the eighth through holes. The upper end face of the tenth protrusion has a cylindrical second groove, and the rolling bearing passes through the second groove. The axial part of the second groove has a cylindrical ninth through hole, and the bearing section of the fourth bracket passes through the ninth through hole.

[0016] In some embodiments, the linear bearing consists of a third body and four fourth bosses connected together. The third body has a symmetrical rectangular parallelepiped structure, and the four fourth bosses are arranged opposite each other in pairs and are located on the upper end face of the third body. A cylindrical second through hole is opened at each of the four corners of the upper end face of the third body, and the second screw passes through the second through hole. The fourth boss has a symmetrical cylindrical structure, and a cylindrical third through hole is opened at the axial part of the fourth boss. A first boss of the first bracket passes through the third through hole, and the third through hole also passes through the third body. A cage, balls and retaining rings are also provided inside the fourth boss.

[0017] In some embodiments, the pad is a symmetrical rectangular parallelepiped structure, and a second screw hole is provided at each of the four corners of the upper end face of the pad, and a second screw is screwed into the second screw hole; the upper end face of the pad is also symmetrically provided with four cylindrical seventh through holes, and the fourth boss of the linear bearing is inserted into the seventh through hole.

[0018] In some embodiments, the rotating rod is composed of an eighth body and two twelfth protrusions connected coaxially. The eighth body and the twelfth protrusions are both cylindrical symmetrical structures. The two twelfth protrusions are arranged opposite each other and are located on the front and rear end faces of the eighth body, respectively. The side of the eighth body is threaded for screwing the fourth screw hole of the fifth bracket. The diameter of the eighth body should be larger than the diameter of the twelfth protrusion.

[0019] In some embodiments, the rolling bearing, the first screw, and the second screw are all standard parts.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1) The feeding device based on torsional impact test specimen provided by this utility model includes a first support, a second support, two third supports, two fourth supports, a fifth support, two sixth supports, four linear bearings, two pads, two rotating rods, eight rolling bearings, twelve first screws and sixteen second screws. Since the materials are common and easy to process and form, the manufacturing cost of this utility model device is relatively low.

[0022] 2) When using this utility model, initially, the two seventh protrusions of the two fourth supports are arranged left and right, and the two sixth supports are both in a position biased to the left. The sixth protrusion of the lower third support is set on the third protrusion of the second support, and the two rotating rods are in a hidden state. An impact sample is inserted into the impact sample receiving space, and the ninth protrusion of the fifth support is inserted into the V-shaped notch of the impact sample. Along the first protrusion of the first support, four linear bearings are raised upward, while the two fourth supports are swung forward 90 degrees, and the two seventh protrusions of the two fourth supports are arranged front and back. Along the first protrusion of the first support, four linear bearings are lowered downward, while the two rotating rods are rotated at a uniform speed and are both in the unscrewed state. During this process, the impact sample can be pushed out. Therefore, the operation of this utility model device is relatively simple.

[0023] 3) This utility model device adopts a symmetrical structure design. The use of the pad block can realize the relative setting of the two third supports and the relative setting of the four linear bearings. The use of the second screw can realize the positioning connection of the linear bearings, the third supports and the pad block. The use of the fifth support can realize the relative setting of the two sixth supports. The use of the first screw can realize the positioning connection of the fifth and sixth supports and the positioning connection of the second support and the first support. The combined use of the first support and the linear bearing can realize the lifting movement of the third support. The use of the fourth support can realize the linkage of the third support and the sixth support. The use of the second support can realize the positioning setting of the third support. The combined use of the third support, the sixth support and the rolling bearing can realize the positioning and torsional movement of the fourth support. The combined use of the sixth support and the fifth support can realize the clamping of the impact sample. The combined use of the fifth support and the rotating rod can realize the ejection of the impact sample. Therefore, the use effect of this utility model device is relatively good.

[0024] The feeding device based on torsional pendulum impact specimens provided by this utility model can quickly achieve the purpose of feeding impact specimens one by one. This utility model device has the characteristics of low manufacturing cost, simple operation and good use effect. Attached Figure Description

[0025] Figure 1 This is a left-side view of the feeding device for torsional impact specimens of this utility model when the fourth support is arranged in a left-right configuration.

[0026] Figure 2 This is a top view of the feeding device for torsional impact test specimens of this utility model when the fourth support is set to the left and right.

[0027] Figure 3 This is a rear view schematic diagram of the feeding device for torsional impact specimens of this utility model when the fourth support is arranged in a front-to-back configuration.

[0028] Figure 4 This is a left-side view of the feeding device for torsional impact specimens of this utility model when the fourth support is arranged in a front-to-back configuration.

[0029] Figure 5 This is a top view of the feeding device for torsional impact specimens of this utility model with the fourth support arranged in a front-to-back configuration.

[0030] Figure 6 This is a rear view schematic diagram of the first bracket of this utility model;

[0031] Figure 7 This is a top view of the first support structure of this utility model;

[0032] Figure 8 This is a rear view schematic diagram of the second bracket of this utility model;

[0033] Figure 9 This is a top view of the second support structure of this utility model;

[0034] Figure 10 This is a rear view schematic diagram of the linear bearing of this utility model;

[0035] Figure 11 This is a top view of the linear bearing of this utility model.

[0036] Figure 12 This is a rear view schematic diagram of the third bracket of this utility model;

[0037] Figure 13 This is a top view of the third support structure of this utility model;

[0038] Figure 14 This is a top view of the pad block of this utility model;

[0039] Figure 15 This is a schematic diagram of the left-side structure of the fourth bracket of this utility model;

[0040] Figure 16 This is a top view of the fourth support structure of this utility model;

[0041] Figure 17This is a front view schematic diagram of the fifth bracket of this utility model;

[0042] Figure 18 This is a top view of the fifth support structure of this utility model;

[0043] Figure 19 This is a schematic diagram of the left-side structure of the sixth bracket of this utility model;

[0044] Figure 20 This is a top view of the sixth support structure of this utility model;

[0045] Figure 21 This is a schematic diagram of the left-side structure of the rotating rod of this utility model;

[0046] Figure 22 This is a top view of the forward swinging structure of the fourth support of this utility model;

[0047] Figure 23 This is a top view of the reverse swing structure of the fourth support of this utility model;

[0048] Figure 24 This is a top view of the rotating rod of this utility model when it is in a hidden state.

[0049] Figure 25 This is a top view of the structure of the rotating rod of this utility model when it is in the unscrewed state;

[0050] Figure 26 This is a left-side structural schematic diagram of the working position of this utility model during impact testing.

[0051] Explanation of reference numerals in the attached drawings: 1-First bracket; 101-First body; 102-First boss; 103-First screw hole; 2-Second bracket; 201-Second body; 202-Second boss; 203-Third boss; 204-First through hole; 3-Linear bearing; 301-Third body; 302-Fourth boss; 303-Second through hole; 304-Third through hole; 4-Third bracket; 401-Fourth body; 402-Fifth boss; 403-Sixth boss; 404-Fourth through hole; 405-Fifth through hole; 406-First groove; 407-Sixth through hole; 5-Padded block; 501-Second screw hole; 502 - Seventh through hole; 6 - Fourth bracket; 601 - Fifth body; 602 - Seventh boss; 603 - Bearing section; 7 - Fifth bracket; 701 - Sixth body; 702 - Eighth boss; 703 - Ninth boss; 704 - Third screw hole; 705 - Fourth screw hole; 8 - Sixth bracket; 801 - Seventh body; 802 - Tenth boss; 803 - Eleventh boss; 804 - Eighth through hole; 805 - Second groove; 806 - Ninth through hole; 9 - Rotating rod; 901 - Eighth body; 902 - Twelfth boss; 10 - Rolling bearing; 11 - First screw; 12 - Second screw; 13 - Impact specimen. Detailed Implementation

[0052] The present invention will be described in detail below with reference to the embodiments and accompanying drawings. The embodiments are only for understanding the present invention and are not intended to limit the content of the present invention.

[0053] Combination Figures 1 to 5As shown, this utility model provides a feeding device for a torsional impact specimen, which includes a first support 1, a second support 2, two third supports 4, two fourth supports 6, a fifth support 7, two sixth supports 8, four linear bearings 3, two pads 5, two rotating rods 9, eight rolling bearings 10, twelve first screws 11, and sixteen second screws 12. A second body 201 of the second support 2 is mounted on the first body 101 of the first support 1 and connected by four first screws 11. The eight first bosses 102 of the first support 1 pass through the sixteen third through holes 304 of the four linear bearings 3 arranged in pairs. The four fourth bodies 401 of the two third supports 4 are arranged in pairs between the four third bodies 301 of the four linear bearings 3. Two pads 5 are arranged in pairs between the four fourth bodies 401 of the two third supports 4. The four linear bearings 3... The sixteen fourth protrusions 302 of the linear bearing 3 are simultaneously inserted into the sixteen fifth through holes 405 of the two third brackets 4 and the eight seventh through holes 502 of the two pads 5, and are connected by sixteen second screws 12; four rolling bearings 10 are inserted into the four first grooves 406 of the two third brackets 4, and four bearing segments 603 of the two opposing fourth brackets 6 are inserted into the four rolling bearings 10; the other four bearing segments 603 of the two fourth brackets 6 are inserted into the other four rolling bearings 10, and the four rolling bearings 10 are inserted into the four second grooves 805 of the two opposing sixth brackets 8; a sixth body 701 of the fifth bracket 7 is inserted between the two seventh bodies 801 of the two sixth brackets 8 and connected by eight first screws 11; the two eighth bodies 901 of the two rotating rods 9 are screwed into the two fourth screw holes 705 of the fifth bracket 7.

[0054] The present invention provides an assembly method for a feeding device based on a torsion pendulum impact specimen.

[0055] Combination Figures 1 to 21 As shown, firstly, four rolling bearings 10 are installed in the four first grooves 406 of the two third brackets 4. Then, the four first grooves 406 of the two third brackets 4 are arranged opposite each other. Then, the four bearing segments 603 of the two fourth brackets 6 are respectively inserted into the four rolling bearings 10. In this way, the two third brackets 4, the four rolling bearings 10 and the two fourth brackets 6 can be assembled.

[0056] Then, the two pads 5 are respectively inserted between the four fourth bodies 401 of the two third brackets 4. Then, the sixteen fourth bosses 302 of the four linear bearings 3 are inserted one after another into the sixteen fifth through holes 405 of the two third brackets 4 and the eight seventh through holes 502 of the two pads 5. At this time, the sixteen second through holes 303 of the four linear bearings 3, the sixteen fourth through holes 404 of the two third brackets 4 and the eight second screw holes 501 of the two pads 5 are aligned. Then, the sixteen second screws 12 are passed through the sixteen second through holes 303 and the sixteen fourth through holes 404 and screwed into the eight second screw holes 501. In this way, the four linear bearings 3, the two third brackets 4 and the two pads 5 can be assembled.

[0057] Then, four rolling bearings 10 are installed in the four second grooves 805 of the two sixth brackets 8. Then, the four second grooves 805 of the two sixth brackets 8 are arranged opposite each other. Then, the other four bearing segments 603 of the two fourth brackets 6 are respectively inserted into the four rolling bearings 10. In this way, the two sixth brackets 8, the four rolling bearings 10 and the two fourth brackets 6 can be assembled.

[0058] Then, the sixth body 701 of the fifth bracket 7 is inserted between the two seventh bodies 801 of the two sixth brackets 8, and the four third screw holes 704 of the fifth bracket 7 and the eight eighth through holes 804 of the two sixth brackets 8 are aligned. Then, the eight first screws 11 are passed through the eight eighth through holes 804 and screwed into the four third screw holes 704. In this way, the fifth bracket 7 and the two sixth brackets 8 can be assembled.

[0059] Then, the first body 101 of the first bracket 1 is set horizontally, and the second body 201 of the second bracket 2 is placed on the first body 101 of the first bracket 1. The four first through holes 204 of the second bracket 2 and the four first screw holes 103 of the first bracket 1 are aligned. Then, the four first screws 11 are passed through the four first through holes 204 and screwed into the four first screw holes 103. In this way, the second bracket 2 and the first bracket 1 can be assembled.

[0060] Then, the eight first protrusions 102 of the first bracket 1 are simultaneously inserted into the sixteen third through holes 304 of the four linear bearings 3. Finally, the two eighth bodies 901 of the two rotating rods 9 are screwed into the two fourth screw holes 705 of the fifth bracket 7. In this way, the entire device is assembled and can be put into use.

[0061] The rules for setting the swing direction of the fourth support of the feeding device based on torsional impact specimens provided by this utility model

[0062] Combination Figure 2 and Figure 5 As shown in the top view of the device of this utility model, for ease of description, the two fourth supports 6 can be defined as ① and ② respectively; since the positions of the four bearing segments 603 of the two fourth supports 6 located within the four sixth through holes 407 of the two third supports 4 are all fixed, the four bearing segments 603 are all swing shafts, which can be set as Q;

[0063] Combination Figure 2 As shown, assuming that the device of this invention is initially in the penetration stage of the impact specimen, the simplified version is as follows: Figure 22 As shown, the two seventh protrusions 602 of the two fourth supports 6 are arranged left and right, and the two sixth supports 8 are both in a position biased to the left. At this time, the combined use of one fifth support 7 and two sixth supports 8 can penetrate the impact sample 13. When ① and ② swing 90 degrees clockwise at the same time, the two seventh protrusions 602 of the two fourth supports 6 are arranged front and back, and the two sixth supports 8 are in the middle position. We can define this swing direction of the fourth support 6 as positive.

[0064] Combination Figure 5 As shown, assuming that the device of this invention is initially in the stage of ejecting the impact specimen, the simplified version is as follows: Figure 23 As shown, the two seventh protrusions 602 of the two fourth supports 6 are arranged front and back, and the two sixth supports 8 are in the middle position. At this time, the combined use of one fifth support 7 and two rotating rods 9 can push out the impact sample 13. When ① and ② swing 90 degrees counterclockwise at the same time, the two seventh protrusions 602 of the two fourth supports 6 are arranged left and right, and the two sixth supports 8 are in the position biased to the left. We can define this swing direction of the fourth supports 6 as reverse.

[0065] The position state of the rotating rod in the feeding device based on the torsional impact specimen provided by this utility model

[0066] Since the space enclosed by the four eleventh protrusions 803 of the two sixth supports 8 and the sixth body 701 of the fifth support 7 can just accommodate one impact specimen 13, for ease of description, the space enclosed by the four eleventh protrusions 803 of the two sixth supports 8 and the sixth body 701 of the fifth support 7 can be defined as the impact specimen accommodating space.

[0067] Combination Figure 24 As shown, when the device of this utility model is in the stage of inserting the impact specimen, that is, when the two seventh protrusions 602 of the two fourth supports 6 are arranged to the left and right, and the two sixth supports 8 are both in a position biased to the left, at this time, the two front end faces of the two twelfth protrusions 902 of the two rotating rods 9 in front should be flush with the front end face of the sixth body 701 of the fifth support 7, so that the impact specimen 13 can be fully inserted into the impact specimen receiving space. For ease of description, this position state of the two rotating rods 9 can be defined as the hidden state.

[0068] Combination Figure 25 As shown, when the device of this utility model is in the stage of ejecting the impact specimen, that is, when the two seventh protrusions 602 of the two fourth supports 6 are arranged front and rear and the two sixth supports 8 are in the middle position, at this time, the two rear end faces of the two twelfth protrusions 902 of the two rotating rods 9 located at the rear should be flush with the rear end face of the sixth body 701 of the fifth support 7, so that the impact specimen 13 can be smoothly ejected from the impact specimen receiving space. For ease of description, this position state of the two rotating rods 9 can be defined as the rotating state.

[0069] The working principle of the feeding device based on torsional pendulum impact specimen provided by this utility model

[0070] All impact test specimen loading or feeding devices should follow the principle that after delivering the impact test specimen to the test position, the loading or feeding device should promptly leave the impact test area, so as not to obstruct the free swing of the pendulum.

[0071] Combination Figure 26 As shown in the left-side structural schematic diagram of the device of this utility model, for ease of description, the swing axis of the pendulum can be set as O, and the swing radius of the pendulum can be set as OA. Then the swing trajectory of the pendulum is an arc ABC. When the device of this utility model is in the stage of pushing out the impact sample, that is, when the two seventh protrusions 602 of the two fourth supports 6 are arranged front and back, and the two sixth supports 8 are in the middle position, when the two rotating rods 9 are in the unscrewed state, the impact sample 13 can be smoothly pushed out from the impact sample receiving space and set in the test position. When the two fourth supports 6 swing in opposite directions by 90 degrees at the same time, the two seventh protrusions 602 of the two fourth supports 6 are arranged left and right, and the two sixth supports 8 are in the position biased to the left. When the two rotating rods 9 are in the hidden state, the device of this utility model has been completely removed from the impact test area. In this way, the free swing of the pendulum will not be hindered.

[0072] The method of using the feeding device for torsion pendulum impact specimens provided by this utility model

[0073] Step 1: Assume that initially, the device of this utility model is in the stage of inserting the impact specimen, that is, the two seventh protrusions 602 of the two fourth supports 6 are arranged to the left and right, and the two sixth supports 8 are both in a position biased to the left. The sixth protrusion 403 of the lower third support 4 is set on the third protrusion 203 of the second support 2, and the two rotating rods 9 are in a hidden state. Then, an impact specimen 13 is inserted into the impact specimen receiving space, and the ninth protrusion 703 of the fifth support 7 is inserted into the V-shaped notch of the impact specimen 13.

[0074] Step 2: Then, along the first protrusion 102 of the first bracket 1, raise the four linear bearings 3 upwards at a constant speed. Then, swing the two fourth brackets 6 in the forward direction by 90 degrees simultaneously. The two seventh protrusions 602 of the two fourth brackets 6 are arranged front and back, and the two sixth brackets 8 are in the middle position. Then, along the first protrusion 102 of the first bracket 1, lower the four linear bearings 3 downwards at a constant speed. Then, rotate the two rotating rods 9 at a constant speed, and both are in the unscrewed state. During this process, the impact sample 13 can be pushed out from the impact sample receiving space.

[0075] Supplementary Explanation: The feeding device for the torsional pendulum impact specimen provided by this utility model adopts a symmetrical structure design. First, according to the geometric dimensions and test position of the impact specimen, multiple specifications of this utility model device should be designed and manufactured to match it. For safe operation, when the sixth protrusion 403 of the third bracket 4 is set on the upper end face of the third protrusion 203 of the second bracket 2, the position of the impact specimen 13 should be lower than the test position of the impact specimen so as not to hinder the free swing of the pendulum. To simplify operation, it should be ensured that the ninth protrusion 703 of the fifth bracket 7 can perfectly fit with the V-shaped notch of the impact specimen 13 so as to be able to position the impact specimen 13. To simplify operation, the vertical distance between the four eleventh protrusions 803 of the two sixth brackets 8 should not be less than the height of the impact specimen 13 so that the impact specimen 13 can be smoothly inserted into the impact specimen receiving space.

[0076] As can be seen from the embodiments, the feeding device based on the torsional pendulum impact specimen provided by this utility model can quickly achieve the purpose of feeding impact specimens one by one. The device of this utility model has the characteristics of low manufacturing cost, simple operation and good use effect.

[0077] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features.

Claims

1. A feeding device for a torsional pendulum impact specimen, characterized in that, The feeding device for the torsional impact specimen includes: a first support (1), a second support (2), two third supports (4), two fourth supports (6), a fifth support (7), two sixth supports (8), four linear bearings (3), two pads (5), two rotating rods (9), eight rolling bearings (10), twelve first screws (11), and sixteen second screws (12), wherein: The first bracket (1) is composed of a first body (101) and eight first bosses (102). The first body (101) is a symmetrical rectangular parallelepiped structure. The eight first bosses (102) are divided into two groups and are located on the upper surface of the first body (101). The upper surface of the first body (101) is symmetrically provided with four first screw holes (103), and the first screws (11) are screwed into the first screw holes (103). The first bosses (102) are symmetrical cylindrical structures and are used to pass through the third through hole (304) of the linear bearing (3). The second bracket (2) is composed of a second body (201), a second boss (202), and a third boss (203). The second body (201), the second boss (202), and the third boss (203) are all symmetrical rectangular parallelepiped structures. The second boss (202) is located on the upper end face of the second body (201), and the third boss (203) is located on the upper end face of the second boss (202). The upper end face of the second body (201) is symmetrically provided with four cylindrical first through holes (204), and the first screw (11) is inserted into the first through holes (204). The third bracket (4) is composed of two fourth bodies (401), two fifth protrusions (402), and a sixth protrusion (403) connected together. The fourth bodies (401), fifth protrusions (402), and sixth protrusions (403) are all symmetrical rectangular parallelepiped structures. The two fourth bodies (401) are arranged opposite each other, the two fifth protrusions (402) are arranged opposite each other and located on the front faces of the two fourth bodies (401), and the sixth protrusion (403) is located between the two fourth bodies (401). A cylindrical fourth through hole (404) is opened at each of the four corners of the upper surface of the fourth body (401). The second screw (12) is inserted through the through hole (404); the upper end face of the fourth body (401) is also symmetrically provided with four cylindrical fifth through holes (405), and the fourth boss (302) of the linear bearing (3) is inserted through the fifth through hole (405); the upper end face of the fifth boss (402) is provided with a cylindrical first groove (406), and the rolling bearing (10) is inserted through the first groove (406); a cylindrical sixth through hole (407) is provided at the axial part of the first groove (406), and the bearing section (603) of the fourth bracket (6) is inserted through the sixth through hole (407); The fourth bracket (6) is composed of two fifth bodies (601), a seventh boss (602), and four bearing segments (603). The fifth bodies (601) and the seventh boss (602) are both rectangular parallelepiped symmetrical structures. The two fifth bodies (601) are arranged opposite each other, and the seventh boss (602) is located between the two fifth bodies (601). The four bearing segments (603) are arranged opposite each other in pairs and are located on the upper and lower four end faces of the two fifth bodies (601). The bearing segments (603) are cylindrical symmetrical structures used to pass through the rolling bearing (10). The fifth support (7) is composed of a sixth body (701), two eighth protrusions (702), and a ninth protrusion (703). The sixth body (701) and the eighth protrusions (702) are both symmetrical cuboid structures. The two eighth protrusions (702) are arranged opposite each other and are located on the left and right end faces of the sixth body (701), respectively. The ninth protrusion (703) is located on the front end face of the sixth body (701). The upper end face of the sixth body (701) is symmetrically provided with four third screw holes (704), and the first screw (11) is screwed into the third screw holes (704). The middle part of the front end face of the eighth protrusion (702) is provided with a fourth screw hole (705), and the eighth body (901) of the rotating rod (9) is screwed into the fourth screw hole (705). The ninth protrusion (703) is a symmetrical triangular prism structure used to pass through the V-shaped notch of the impact test specimen. The sixth bracket (8) is composed of a seventh body (801), two tenth protrusions (802), and two eleventh protrusions (803). The seventh body (801), the tenth protrusions (802), and the eleventh protrusions (803) are all symmetrical rectangular parallelepiped structures. The two tenth protrusions (802) are arranged opposite each other and are located on the rear end face of the seventh body (801), and the two eleventh protrusions (803) are arranged opposite each other and are located on the front end face of the seventh body (801). The seventh body (801) is composed of a seventh body (801), two tenth protrusions (802), and two eleventh protrusions (803). The upper end face of the 1) is symmetrically provided with four cylindrical eighth through holes (804), and the first screw (11) is inserted through the eighth through hole (804); the upper end face of the tenth boss (802) is provided with a cylindrical second groove (805), and the rolling bearing (10) is inserted through the second groove (805); a cylindrical ninth through hole (806) is provided at the axial part of the second groove (805), and the bearing section (603) of the fourth bracket (6) is inserted through the ninth through hole (806).

2. The feeding device based on torsional pendulum impact specimens according to claim 1, characterized in that, The linear bearing (3) is composed of a third body (301) and four fourth bosses (302). The third body (301) is a symmetrical rectangular parallelepiped structure. The four fourth bosses (302) are arranged opposite each other and are located on the upper surface of the third body (301). A cylindrical second through hole (303) is opened at each of the four corners of the upper surface of the third body (301). The second screw (12) is inserted through the second through hole (303). The fourth boss (302) is a symmetrical cylindrical structure. A cylindrical third through hole (304) is opened at the axial part of the fourth boss (302). The first boss (102) of the first bracket (1) is inserted through the third through hole (304). The third through hole (304) also penetrates the third body (301). A cage, ball and retainer are also provided inside the fourth boss (302).

3. The feeding device based on torsional pendulum impact specimen according to claim 1, characterized in that, The pad (5) has a symmetrical rectangular parallelepiped structure. A second screw hole (501) is provided at each of the four corners of the upper end face of the pad (5). The second screw (12) is screwed into the second screw hole (501). The upper end face of the pad (5) is also symmetrically provided with four cylindrical seventh through holes (502). The fourth boss (302) of the linear bearing (3) is inserted into the seventh through hole (502).

4. The feeding device for torsion pendulum impact specimens according to claim 1, characterized in that, The rotating rod (9) is composed of an eighth body (901) and two twelfth protrusions (902) connected coaxially. The eighth body (901) and the twelfth protrusions (902) are both cylindrical symmetrical structures. The two twelfth protrusions (902) are arranged opposite each other and are located on the front and rear end faces of the eighth body (901). The side of the eighth body (901) is threaded for screwing the fourth screw hole (705) of the fifth bracket (7). The diameter of the eighth body (901) should be larger than the diameter of the twelfth protrusion (902).

5. The feeding device for torsion pendulum impact specimens according to claim 1, characterized in that, The rolling bearing (10), the first screw (11), and the second screw (12) are all standard parts.

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