Hopkinson tie rod high temperature synchronous control device

Abstract

The present invention provides a Hopkinson rod high-temperature synchronous control device, comprising a base; a heating furnace disposed on the base, the heating furnace being provided with a furnace door; a support mechanism for fixing an incident rod connecting fixture and a transmission rod connecting fixture; the support mechanism being disposed on a side of the base near the furnace door; a first connecting portion being provided on the incident rod connecting fixture, and a second connecting portion being provided on the transmission rod connecting fixture; a sample fixing mechanism movably disposed within the heating furnace; a third connecting portion being provided at one end of the sample fixing mechanism to match the first connecting portion, and a fourth connecting portion being provided at the other end to match the second connecting portion; and a material pushing mechanism for pushing the sample fixing mechanism to engage the third connecting portion with the first connecting portion, and the fourth connecting portion with the second connecting portion. In the present invention, after heating the sample, the material pushing mechanism is used to quickly engage the sample with the incident rod connecting fixture and the transmission rod connecting fixture, thereby preventing the temperature of the heated sample from rapidly dropping.

Description

Technical Field

[0001] The present invention relates to the technical field of Hopkinson pull rods, in particular to a high-temperature synchronous control device for a Hopkinson pull rod. Background Art

[0002] The study of the dynamic mechanical behavior of materials at high strain rates is of great significance. The Hopkinson bar experimental technique is currently the most commonly used and mature experimental method for measuring the mechanical properties of materials at high strain rates.

[0003] Hopkinson bars are divided into tension bars and compression bars. Hopkinson bar experiments involving high temperatures and high strains are relatively difficult to conduct. When a sample is heated to a high temperature, it cools down very quickly at room temperature. This is especially true for metal materials. This temperature drop can severely impact material performance testing. Furthermore, heated samples are difficult to manually install, and slow installation can lead to heat loss.

[0004] In existing testing techniques, the sample is typically first fixed with a fixture and then heated directly. This involves pre-fixing the sample to the incident and transmission rod connecting fixtures before heating. This method of fixing first and then heating can cause heat to transfer from the sample to both sides due to excessively high heating temperatures and prolonged heating times. This can cause temperature gradients on the incident and transmission rod connecting fixtures to change over a long period of time, affecting the elastic modulus and yield strength of the incident and transmission rod connecting fixtures, and thus the accuracy of the experimental data. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a high-temperature synchronous control device for a Hopkinson pull rod, which solves the problem in the prior art that heating causes long-term temperature gradient changes in the incident rod connecting fixture and the transmission rod connecting fixture.

[0006] The technical solution adopted by the present invention to solve the above problems is: a Hopkinson pull rod high-temperature synchronous control device, comprising a base; a heating furnace for heating the sample; the heating furnace is arranged on the base, and a furnace door is provided on one side of the heating furnace; a support mechanism for supporting and fixing the incident rod connecting clamp and the transmission rod connecting clamp; the support mechanism is arranged on the base on the side close to the furnace door of the heating furnace; the incident rod connecting clamp is provided with a first connecting part, and the transmission rod connecting clamp is provided with a second connecting part; a sample fixing mechanism for fixing the sample; the sample fixing mechanism is movably arranged in the heating furnace; one end of the sample fixing mechanism is provided with a third connecting part matching the first connecting part, and the other end of the sample fixing mechanism is provided with a fourth connecting part matching the second connecting part; a material pushing mechanism for pushing the sample fixing mechanism out of the furnace door from the heating furnace, so that the third connecting part is engaged with the first connecting part, and the fourth connecting part is engaged with the second connecting part; the material pushing mechanism is arranged on the heating furnace.

[0007] Compared with the prior art, the advantages of the present invention are: the sample is fixed by a sample fixing mechanism, then put into a heating furnace for heating, and finally the sample fixing mechanism is directly pushed by a material pushing mechanism to engage with the incident rod connecting clamp and the transmission rod connecting clamp, so that the heated sample is quickly connected to the incident rod connecting clamp and the transmission rod connecting clamp, ensuring that the temperature of the heated sample does not drop rapidly, and that the heating will not cause long-term temperature gradient changes to the incident rod connecting clamp and the transmission rod connecting clamp.

[0008] Preferably, the sample fixing mechanism includes an incident clamp and a transmission clamp; the first connecting part is a first wedge-shaped hole that passes through the movement direction of the sample fixing mechanism, and the opening of the first wedge-shaped hole close to the heating furnace is larger than the opening on the side away from the heating furnace; the third connecting part is a first wedge block on the incident clamp, and the first wedge block and the first wedge hole are matched and snapped together; the second connecting part is a second wedge-shaped hole that passes through the movement direction of the sample fixing mechanism, and the opening of the second wedge hole close to the heating furnace is larger than the opening on the side away from the heating furnace; the fourth connecting part is a second wedge block on the transmission clamp, and the second wedge block and the second wedge hole are matched and snapped together.

[0009] The technical effect achieved by adopting this technical solution is as follows: the connecting part is set as a wedge-shaped hole that passes through the movement direction of the sample fixing mechanism, and then combined with the wedge block structure on the sample fixing mechanism, it is convenient to achieve quick clamping; at the same time, the opening of the wedge-shaped hole close to the heating furnace is set to be larger than the opening on the side away from the heating furnace, which also facilitates the wedge block to slide quickly to achieve self-locking with the wedge-shaped hole.

[0010] Preferably, the first wedge-shaped hole includes a wedge-shaped hole A and a wedge-shaped hole B arranged along the radial direction of the incident rod connecting clamp and connected to each other, the openings of the wedge-shaped hole A and the wedge-shaped hole B on the side close to the heating furnace are both larger than the openings on the side away from the heating furnace, the radial opening on the side of the wedge-shaped hole A is larger than the radial opening on the same side of the wedge-shaped hole B, the first wedge block includes a wedge-shaped block A matching the wedge-shaped hole A away from the end of the sample, and a wedge-shaped block B matching the wedge-shaped hole B close to the end of the sample; the second wedge hole includes a wedge-shaped hole C and a wedge-shaped hole D arranged along the radial direction of the transmission rod connecting clamp and connected to each other, the openings of the wedge-shaped hole C and the wedge-shaped hole D on the side close to the heating furnace are both larger than the openings on the side away from the heating furnace, the radial opening on the side of the wedge-shaped hole C is larger than the radial opening on the same side of the wedge-shaped hole D, the second wedge block includes a wedge-shaped block C matching the wedge-shaped hole C away from the end of the sample, and a wedge-shaped block D matching the wedge-shaped hole D close to the end of the sample.

[0011] The technical effects achieved by adopting this technical solution are as follows: by arranging two wedge blocks on both the incident fixture and the transmission fixture, the connection between the incident fixture and the incident rod connecting fixture, as well as the connection between the transmission fixture and the transmission rod connecting fixture, is further ensured; at the same time, the radial opening on one side of the wedge-shaped hole A is made larger than the radial opening on the same side of the wedge-shaped hole B, ensuring that the matching wedge block A is larger than the wedge block B, preventing the incident fixture from being disconnected during a tensile test after being connected to the incident rod connecting fixture; and the radial opening on one side of the wedge-shaped hole C is made larger than the radial opening on the same side of the wedge-shaped hole D, ensuring that the matching wedge block C is larger than the wedge block D, preventing the transmission fixture from being disconnected during a tensile test after being connected to the transmission rod connecting fixture.

[0012] Preferably, one end of the incident fixture is provided with a first slot for clamping the sample and a first positioning bolt for fixing the sample, and one end of the incident fixture is also provided with a first positioning hole for installing the first positioning bolt, and the first positioning hole is connected to the first slot; one end of the transmission fixture is provided with a second slot for clamping the sample and a second positioning bolt for fixing the sample, and one end of the transmission fixture is also provided with a second positioning hole for installing the second positioning bolt, and the second positioning hole is connected to the second slot.

[0013] The technical effect achieved by adopting this technical solution is: the sample is fixed by means of slots and positioning bolts, and the entire fixing process is simple and easy to operate; at the same time, the positioning holes are set to facilitate the fixation of the positioning bolts and the sample, so that the sample can be fixed in a specific position to prevent the sample from shifting.

[0014] Preferably, a first guide seat for slidingly guiding the sample fixing mechanism is provided in the heating furnace. The first guide seat is fixed on the side of the heating furnace close to the furnace door. The first wedge block is slidably connected to the inner wall of one side of the first guide seat, and the second wedge block is slidably connected to the inner wall of the other side of the first guide seat.

[0015] The technical effect achieved by adopting this technical solution is: by setting the first guide seat, it plays a guiding role in the heating furnace, which makes it more convenient for the material pushing mechanism to push the two ends of the sample fixing mechanism to connect with the incident rod connecting clamp and the transmission rod connecting clamp, thereby ensuring the accuracy of the connection position.

[0016] Preferably, it also includes a second guide seat for sliding guidance of the sample fixing mechanism, the second guide seat is fixed on the supporting mechanism, and the second guide seat is arranged on the movement path of the sample fixing mechanism, the material pushing mechanism pushes the sample fixing mechanism to move, so that the first wedge block is slidably connected to the inner side wall of one side of the second guide seat, and the second wedge block is slidably connected to the inner side wall of the other side of the second guide seat.

[0017] The technical effect achieved by adopting this technical solution is: by arranging a second guide seat on the movement path of the sample fixing mechanism, it also plays a guiding role outside the heating furnace, making it convenient for the material pushing mechanism to push the two ends of the sample fixing mechanism to connect with the incident rod connecting clamp and the transmission rod connecting clamp, further ensuring the accuracy of the connection position.

[0018] Preferably, the furnace body base is also provided with a furnace body moving mechanism for driving the heating furnace to achieve communication between the first guide seat and the second guide seat, the furnace body moving mechanism includes a furnace body moving slide rail, a furnace body moving air pump and a furnace body moving telescopic rod, the furnace body moving slide rail is arranged on the base, and the bottom of the heating furnace is provided with a furnace body moving slider that cooperates with the furnace body moving slide rail, one end of the furnace body moving air pump is fixedly connected to the furnace body base, and the other end of the furnace body moving air pump is fixedly connected to the heating furnace through the furnace body moving telescopic rod.

[0019] The technical effect achieved by adopting this technical solution is: through the furnace body moving mechanism, it is convenient to drive the heating furnace to move. After the heating furnace is heated, the first guide seat and the second guide seat can be connected by driving the heating furnace, which facilitates the material pushing mechanism to push the sample fixing mechanism to connect with the incident rod connecting clamp and the transmission rod connecting clamp, thereby improving the accuracy of the connection.

[0020] Preferably, the support mechanism includes a first chuck for fixing the incident rod connecting clamp, a second chuck for fixing the transmission rod connecting clamp and a support slide rail, the first chuck is slidably connected to the support slide rail through a first support slider, and the second chuck is slidably connected to the support slide rail through a second support slider.

[0021] The technical effect achieved by adopting this technical solution is: by setting a supporting slider in conjunction with a supporting slide rail, it is convenient to adjust the position of the chuck, and it is convenient to adjust the position of the incident rod connecting clamp and the transmission rod connecting clamp, so that the sample fixing mechanism can be directly pushed by the material pushing mechanism to achieve clamping with the incident rod connecting clamp and the transmission rod connecting clamp.

[0022] Preferably, the material pushing mechanism includes a material pushing air pump, a material telescopic rod and a pushing block. The material pushing air pump is fixed to the side of the heating furnace away from the furnace door. One end of the material telescopic rod is connected to the material pushing air pump, and the other end of the material telescopic rod extends into the heating furnace and is fixedly connected to the pushing block. The pushing block abuts against the sample fixing mechanism.

[0023] The technical effect achieved by adopting this technical solution is: the material pushing air pump is set outside the heating furnace to prevent the heating furnace from affecting the material pushing air pump, and by setting a pushing block, it is more convenient to push the sample fixing mechanism.

[0024] Preferably, the heating furnace is provided with a furnace door lifting mechanism next to the furnace door, and the furnace door lifting mechanism includes a furnace door lifting slide rail, a furnace door lifting air pump and a furnace door telescopic rod. The furnace door lifting slide rail is fixed to the side of the furnace door of the heating furnace, and the furnace door is provided with a furnace door moving slider that cooperates with the furnace door lifting slide rail. One end of the furnace door lifting air pump is fixed on the furnace door lifting slide rail, and the other end of the furnace door lifting air pump is fixedly connected to the furnace door through the furnace door telescopic rod.

[0025] The technical effect achieved by adopting this technical solution is: by setting the furnace door lifting mechanism, the control of the furnace door is facilitated, the furnace door can be automatically opened and closed, the furnace door can be opened faster, and the heated samples are pushed out more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall structure of the Hopkinson tie rod high temperature synchronous control device of the present invention;

[0027] Figure 2 This is a schematic structural diagram of the Hopkinson pull rod high temperature synchronous control device of the present invention after the furnace door is closed;

[0028] Figure 3 This is a schematic structural diagram of the Hopkinson pull rod high temperature synchronous control device of the present invention after the furnace door is opened;

[0029] Figure 4 For the present invention Figure 3 A in the middle is an enlarged schematic diagram;

[0030] Figure 5 This is a schematic diagram of the sample structure of the Hopkinson tie rod high temperature synchronous control device of the present invention;

[0031] Figure 6A schematic structural diagram of the connection between the sample fixing mechanism of the Hopkinson pull rod high temperature synchronous control device of the present invention, the sample, the incident rod connecting fixture and the transmission rod connecting fixture;

[0032] Figure 7 A schematic structural diagram of a sample fixing structure of a Hopkinson pull rod high temperature synchronous control device according to the present invention;

[0033] Figure 8 This is a front structural diagram of the incident rod connecting fixture and the incident fixture of the Hopkinson pull rod high temperature synchronous control device of the present invention;

[0034] Figure 9 This is a schematic diagram of the reverse structure of the transmission rod connecting fixture and the transmission fixture of the Hopkinson pull rod high temperature synchronous control device of the present invention;

[0035] Figure 10 A schematic side view of the structure of the Hopkinson tie rod high temperature synchronous control device of the present invention;

[0036] Figure 11 This is a bottom view of the Hopkinson tie rod high temperature synchronous control device of the present invention.

[0037] Description of reference numerals:

[0038] 11 - incident rod connecting fixture; 111 - first wedge-shaped hole; 1111 - wedge-shaped hole A; 1112 - wedge-shaped hole B; 12 - transmission rod connecting fixture; 121 - second wedge-shaped hole; 1211 - wedge-shaped hole C; 1212 - wedge-shaped hole D; 13 - sample;

[0039] 2-base; 21-furnace base; 22-support base;

[0040] 3-heating furnace; 31-furnace door; 32-furnace body moving slider;

[0041] 4-support mechanism; 41-first chuck; 42-second chuck; 43-support rail; 44-first support slider; 45-second support slider;

[0042] 5 - sample fixing mechanism; 51 - incident fixture; 511 - first wedge; 5111 - wedge A; 5112 - wedge B; 512 - first slot; 513 - first positioning hole; 514 - first avoidance hole; 52 - transmission fixture; 521 - second wedge; 5211 - wedge C; 5212 - wedge D; 522 - second slot; 523 - second positioning hole; 524 - second avoidance hole;

[0043] 6-Material pushing mechanism; 61-Material pushing air pump; 62-Material telescopic rod; 63-Pushing block;

[0044] 71-first guide seat; 72-second guide seat;

[0045] 8-furnace moving mechanism; 81-furnace moving slide rail; 82-furnace moving air pump; 83-furnace moving telescopic rod;

[0046] 9-furnace door lifting mechanism; 91-furnace door lifting slide rail; 92-furnace door lifting air pump; 93-furnace door telescopic rod. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] like Figures 1 to 11 As shown, this embodiment relates to a Hopkinson tie rod high temperature synchronous control device, comprising a base 2;

[0049] The heating furnace 3 is used to heat the sample 13; the heating furnace 3 is arranged on the base 2, and a furnace door 31 is provided on one side of the heating furnace 3;

[0050] The support mechanism 4 is used to support and fix the incident rod connecting fixture 11 and the transmission rod connecting fixture 12; the support mechanism 4 is arranged on the base 2 on the side close to the furnace door 31 of the heating furnace 3; the incident rod connecting fixture 11 is provided with a first connecting portion, and the transmission rod connecting fixture 12 is provided with a second connecting portion;

[0051] A sample fixing mechanism 5 is used to fix the sample 13; the sample fixing mechanism 5 is movably arranged in the heating furnace 3; a third connecting portion matching the first connecting portion is provided at one end of the sample fixing mechanism 5, and a fourth connecting portion matching the second connecting portion is provided at the other end of the sample fixing mechanism 5;

[0052] The material pushing mechanism 6 is used to push the sample fixing mechanism 5 out of the heating furnace 3 and connect the third connecting part with the first connecting part, and the fourth connecting part with the second connecting part; the material pushing mechanism 6 is set on the heating furnace 3.

[0053] First, the sample 13 is fixed by the sample fixing mechanism 5 and then placed in the heating furnace 3 for heating. After heating is completed, the sample fixing mechanism 5 is directly pushed by the material pushing mechanism 6 to engage the incident rod connecting fixture 11 and the transmission rod connecting fixture 12. The heated sample 13 can be quickly connected to the incident rod connecting fixture 11 and the transmission rod connecting fixture 12 by pushing, ensuring that the temperature of the heated sample 13 does not drop rapidly and that the heating does not cause a long-term temperature gradient change in the incident rod connecting fixture 11 and the transmission rod connecting fixture 12.

[0054] In order to facilitate fixation, in this embodiment, the base 2 can be set as a furnace body base 21 and a support base 22. The heating furnace 3 is fixed by the furnace body base 21, and the support mechanism 4 is fixed by the support base 22.

[0055] Both the heating furnace 3 and the material pushing mechanism 6 require circuit control, and typically, these circuit components are located on a base beneath the heating furnace 3. However, the support mechanism 4 does not require circuit control. Therefore, in actual use, the base 2 on the heating furnace 3 side is higher than the base 2 on the support mechanism 4 side. Therefore, in the actual design, the base 2 includes a furnace base 21 for securing the heating furnace 3 and a support base 22 for securing the support mechanism 4.

[0056] See also Figure 6 As shown, in this embodiment, the sample fixing mechanism 5 includes an incident clamp 51 and a transmission clamp 52 .

[0057] The first connecting portion is a first wedge-shaped hole 111 that passes through the sample fixing mechanism 5 in the direction of movement. The opening of the first wedge-shaped hole 111 on the side close to the heating furnace 3 is larger than the opening on the side away from the heating furnace 3. The third connecting portion is a first wedge-shaped block 511 on the incident fixture 51. The first wedge-shaped block 511 is matched and clamped with the first wedge-shaped hole 111.

[0058] The second connecting part is a second wedge-shaped hole 121 that passes through the movement direction of the sample fixing mechanism 5. The opening of the second wedge-shaped hole 121 close to the heating furnace 3 is larger than the opening on the side away from the heating furnace 3. The fourth connecting part is a second wedge block 521 on the transmission clamp 52. The second wedge block 521 is matched and snapped into the second wedge hole 121.

[0059] The connecting part is set as a wedge-shaped hole that passes through the movement direction of the sample fixing mechanism 5, and is combined with the wedge block structure on the sample fixing mechanism 5 to facilitate quick clamping; at the same time, the opening of the wedge-shaped hole close to the heating furnace 3 is set to be larger than the opening on the side away from the heating furnace 3, which also facilitates the wedge block to slide quickly to achieve self-locking with the wedge-shaped hole.

[0060] See also Figure 7 and Figure 8 As shown, the first wedge-shaped hole 111 includes a wedge-shaped hole A1111 and a wedge-shaped hole B1112 which are arranged in the radial direction of the incident rod connecting fixture 11 and are connected to each other. The openings of the wedge-shaped hole A1111 and the wedge-shaped hole B1112 on the side close to the heating furnace 3 are larger than the openings on the side away from the heating furnace 3. The radial opening on one side of the wedge-shaped hole A1111 is larger than the radial opening on the same side of the wedge-shaped hole B1112. The first wedge block 511 includes a wedge block A5111 that matches the wedge-shaped hole A1111 at one end away from the sample 13, and a wedge block B5112 that matches the wedge-shaped hole B1112 at one end close to the sample 13.

[0061] By setting two wedge blocks on the incident clamp 51, the connection between the incident clamp 51 and the incident rod connecting clamp 11 is further guaranteed; at the same time, the radial opening on one side of the wedge hole A1111 is larger than the radial opening on the same side of the wedge hole B1112, ensuring that the matching wedge block A5111 is larger than the wedge block B5112, preventing the incident clamp 51 from being disconnected during the tensile test after being connected to the incident rod connecting clamp 11.

[0062] See also Figure 7 and Figure 9 As shown, further, the second wedge-shaped hole 121 includes a wedge-shaped hole C1211 and a wedge-shaped hole D1212 arranged along the radial direction of the transmission rod connecting clamp 12 and connected to each other, the openings of the wedge-shaped hole C1211 and the wedge-shaped hole D1212 on the side close to the heating furnace 3 are larger than the openings on the side away from the heating furnace 3, the radial opening on one side of the wedge-shaped hole C1211 is larger than the radial opening on the same side of the wedge-shaped hole D1212, and the second wedge block 521 includes a wedge-shaped block C5211 that matches the wedge-shaped hole C1211 at one end away from the sample 13, and a wedge-shaped block D5212 that matches the wedge-shaped hole D1212 at one end close to the sample 13.

[0063] By setting two wedge blocks on the transmission clamp 52, the connection between the transmission clamp 52 and the transmission rod connecting clamp 12 is further ensured; the radial opening on one side of the wedge hole C1211 is made larger than the radial opening on the same side of the wedge hole D1212, ensuring that the matching wedge block C5211 is larger than the wedge block D5212, preventing the transmission clamp 52 from being disconnected during the tensile test after being connected to the transmission rod connecting clamp 12.

[0064] See also Figure 6 and Figure 7 As shown, one end of the incident fixture 51 is provided with a first slot 512 for clamping the sample 13 and a first positioning bolt for fixing the sample 13. One end of the incident fixture 51 is also provided with a first positioning hole 513 for installing the first positioning bolt, and the first positioning hole 513 is connected to the first slot 512.

[0065] One end of the transmission fixture 52 is provided with a second slot 522 for clamping the sample 13 and a second positioning bolt for fixing the sample 13. One end of the transmission fixture 52 is also provided with a second positioning hole 523 for installing the second positioning bolt. The second positioning hole 523 is connected to the second slot 522.

[0066] The sample 13 is fixed by means of the card slot and the positioning bolt. The whole fixing process is simple and easy to operate. At the same time, the positioning hole is provided to facilitate the fixation of the positioning bolt and the sample 13, so that the sample 13 can be fixed in a specific position to prevent the sample 13 from shifting.

[0067] In order to better fix the sample 13, the incident fixture 51 is provided with a first avoidance hole 514 along the radial direction. The first avoidance hole 514 is located at the bottom of the first card slot 512. The aperture of the first avoidance hole 514 is greater than the height of the first card slot 512. The first avoidance hole 514 is connected to the first card slot 512.

[0068] The transmissive fixture 52 defines a second avoidance hole 524 along the radial direction. The second avoidance hole 524 is located at the bottom of the second slot 522 . The diameter of the second avoidance hole 524 is larger than the height of the second slot 522 . The second avoidance hole 524 communicates with the second slot 522 .

[0069] By setting up an avoidance hole, the end of the sample 13 is prevented from touching the bottom of the slot, thereby preventing the sample 13 from being deformed; at the same time, the aperture of the avoidance hole is set to be larger than the height of the slot, which can ensure that the sample 13 is completely fitted with both sides of the slot, thereby increasing the friction between the sample 13 and the slot, increasing the connection strength, and preventing the sample 13 from detaching.

[0070] See also Figure 1 As shown, a first guide seat 71 for slidingly guiding the sample fixing mechanism 5 is provided in the heating furnace 3. The first guide seat 71 is fixed on the side of the heating furnace 3 close to the furnace door 31. The first wedge block 511 is slidably connected to the inner side wall of one side of the first guide seat 71, and the second wedge block 521 is slidably connected to the inner side wall of the other side of the first guide seat 71.

[0071] By setting the first guide seat 71, a guiding role is played in the heating furnace 3, which makes it easier for the material pushing mechanism 6 to push the two ends of the sample fixing mechanism 5 to connect with the incident rod connecting clamp 11 and the transmission rod connecting clamp 12, thereby ensuring the accuracy of the connection position.

[0072] See also Figures 1 to 3 As shown, in this embodiment, the Hopkinson pull rod high temperature synchronous control device also includes a second guide seat 72 for sliding guidance of the sample fixing mechanism 5, the second guide seat 72 is fixed on the support mechanism 4, and the second guide seat 72 is arranged on the movement path of the sample fixing mechanism 5, the material pushing mechanism 6 pushes the sample fixing mechanism 5 to move, so that the first wedge block 511 is slidably connected to the inner side wall of one side of the second guide seat 72, and the second wedge block 521 is slidably connected to the inner side wall of the other side of the second guide seat 72.

[0073] By setting a second guide seat 72 on the movement path of the sample fixing mechanism, it also plays a guiding role outside the heating furnace 3, making it convenient for the material pushing mechanism 6 to push the two ends of the sample fixing mechanism 5 to connect with the incident rod connecting clamp 11 and the transmission rod connecting clamp 12, further ensuring the accuracy of the connection position.

[0074] See also Figure 10 and Figure 11 As shown, in this embodiment, a furnace body moving mechanism 8 is also provided on the furnace body base 21 for driving the heating furnace 3 to realize the connection between the first guide seat 71 and the second guide seat 72. The furnace body moving mechanism 8 includes a furnace body moving slide rail 81, a furnace body moving air pump 82 and a furnace body moving telescopic rod 83. The furnace body moving slide rail 81 is arranged on the base 2, and a furnace body moving slider 32 cooperating with the furnace body moving slide rail 81 is provided at the bottom of the heating furnace 3. One end of the furnace body moving air pump 82 is fixedly connected to the furnace body base 21, and the other end of the furnace body moving air pump 82 is fixedly connected to the heating furnace 3 through the furnace body moving telescopic rod 83.

[0075] The furnace moving mechanism 8 can be used to conveniently drive the heating furnace 3 to move. After the heating in the heating furnace 3 is completed, the first guide seat 71 and the second guide seat 72 can be connected by driving the heating furnace 3, so that the material pushing mechanism 6 can facilitate the connection between the sample fixing mechanism 5 and the incident rod connecting clamp 11 and the transmission rod connecting clamp 12, thereby improving the accuracy of the connection.

[0076] Among them, see Figure 4 As shown, after the heating furnace 3 is driven to move by the furnace body moving mechanism 8, the first guide seat 71 and the second guide seat 72 are connected.

[0077] See also Figure 2 As shown, the supporting mechanism 4 includes a first chuck 41 for fixing the incident rod connecting fixture 11, a second chuck 42 for fixing the transmission rod connecting fixture 12 and a supporting slide rail 43. The first chuck 41 is slidably connected to the supporting slide rail 43 through a first supporting slider 44, and the second chuck 42 is slidably connected to the supporting slide rail 43 through a second supporting slider 45.

[0078] By setting a supporting slider to cooperate with the supporting slide rail 43, it is convenient to adjust the position of the chuck, and it is convenient to adjust the position of the incident rod connecting clamp 11 and the transmission rod connecting clamp 12, so that the sample fixing mechanism 5 can be directly pushed by the material pushing mechanism 6 to achieve clamping with the incident rod connecting clamp 11 and the transmission rod connecting clamp 12.

[0079] See also Figure 1 As shown, the material pushing mechanism 6 includes a material pushing air pump 61, a material telescopic rod 62 and a pushing block 63. The material pushing air pump 61 is fixed to the side of the heating furnace 3 away from the furnace door 31. One end of the material telescopic rod 62 is connected to the material pushing air pump 61, and the other end of the material telescopic rod 62 extends into the heating furnace 3 and is fixedly connected to the pushing block 63. The pushing block 63 abuts against the sample fixing mechanism 5.

[0080] The material pushing air pump 61 is arranged outside the heating furnace 3 to prevent the heating furnace 3 from affecting the material pushing air pump 61. By arranging the pushing block 63, it is more convenient to push the sample fixing mechanism 5.

[0081] See also Figure 2 As shown, the heating furnace 3 is provided with a furnace door lifting mechanism 9 next to the furnace door 31. The furnace door lifting mechanism 9 includes a furnace door lifting slide rail 91, a furnace door lifting air pump 92 and a furnace door telescopic rod 93. The furnace door lifting slide rail 91 is fixed to the side of the furnace door 31 of the heating furnace 3. The furnace door 31 is provided with a furnace door 31 moving slider that cooperates with the furnace door lifting slide rail 91. One end of the furnace door lifting air pump 92 is fixed on the furnace door lifting slide rail 91, and the other end of the furnace door lifting air pump 92 is fixedly connected to the furnace door 31 through the furnace door telescopic rod 93.

[0082] By setting up the furnace door lifting mechanism 9, the control of the furnace door 31 is facilitated, and the automatic opening and closing of the furnace door 31 can be realized. The furnace door 31 can be opened more quickly, making it easier to push out the heated sample 13.

[0083] The working principle of the Hopkinson tie rod high temperature synchronous control device of this embodiment is as follows:

[0084] First, insert the two ends of the sample 13 into the first card slot 512 of the incident fixture 51 and the second card slot 522 of the transmission fixture 52, respectively, and position them with the positioning holes on the sample 13 through the first positioning hole 513 and the second positioning block 523 respectively, and then fix the sample 13 through the first positioning bolt and the second positioning bolt.

[0085] Then, the furnace door lifting mechanism 9 is started to open the furnace door 31 of the heating furnace 3, and the sample fixing mechanism 5 after fixing the sample 13 is placed on the first guide seat 71 in the heating furnace 3. The furnace door lifting mechanism 9 is started to close the furnace door 31 of the heating furnace 3, and the heating furnace 3 is started to heat the sample 13 inside together with the sample fixing mechanism 5.

[0086] Finally, after the heating furnace 3 heats the sample 13 to a preset temperature, the heating furnace 3 is turned off for heating, the furnace door lifting mechanism 9 is started to open the furnace door 31 of the heating furnace 3, and then the furnace body moving mechanism 8 is started to drive the entire heating furnace 3 to move, so that the first guide seat 71 and the second guide seat 72 are connected, and then the material pushing mechanism 6 is started to push the sample fixing mechanism 5 to engage with the incident rod connecting clamp 11 and the transmission rod connecting clamp 12.

[0087] In this way, it is possible to ensure that the heated sample 13 can be quickly connected to the incident rod connecting fixture 11 and the transmission rod connecting fixture 12, which is convenient for high temperature testing.

[0088] The beneficial effects of the present invention are as follows: the sample 13 is fixed by the sample fixing mechanism 5, and then put into the heating furnace 3 for heating, and finally the sample fixing mechanism 5 is directly pushed by the material pushing mechanism 6 to connect with the incident rod connecting clamp 11 and the transmission rod connecting clamp 12, so that the heated sample 13 can be quickly connected with the incident rod connecting clamp 11 and the transmission rod connecting clamp 12 by pushing, ensuring that the temperature of the heated sample 13 does not drop rapidly, and after heating, no long-term temperature gradient changes will be caused to the incident rod connecting clamp 11 and the transmission rod connecting clamp 12.

[0089] The foregoing description shows and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be within the scope of the appended claims.

[0090] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A Hopkinson tie rod high temperature synchronous control device, characterized in that: include Base (2); A heating furnace (3) for heating the sample (13); the heating furnace (3) is arranged on the base (2), and a furnace door (31) is provided on one side of the heating furnace (3); A support mechanism (4) is used to support and fix the incident rod connecting fixture (11) and the transmission rod connecting fixture (12); the support mechanism (4) is arranged on a base (2) on a side close to the furnace door (31) of the heating furnace (3); the incident rod connecting fixture (11) is provided with a first connecting portion, and the transmission rod connecting fixture (12) is provided with a second connecting portion; A sample fixing mechanism (5) for fixing a sample (13); the sample fixing mechanism (5) is movably arranged in the heating furnace (3); a third connecting portion matching the first connecting portion is provided at one end of the sample fixing mechanism (5), and a fourth connecting portion matching the second connecting portion is provided at the other end of the sample fixing mechanism (5); A material pushing mechanism (6) is used to push the sample fixing mechanism (5) out of the heating furnace (3) and to engage the third connecting portion with the first connecting portion, and the fourth connecting portion with the second connecting portion; the material pushing mechanism (6) is provided on the heating furnace (3); The sample fixing mechanism (5) comprises an incident fixture (51) and a transmission fixture (52); The first connecting portion is a first wedge-shaped hole (111) extending along the movement direction of the sample fixing mechanism (5), the opening of the first wedge-shaped hole (111) on the side close to the heating furnace (3) is larger than the opening on the side away from the heating furnace (3), and the third connecting portion is a first wedge-shaped block (511) on the incident fixture (51), and the first wedge-shaped block (511) and the first wedge-shaped hole (111) are matched and snap-fitted; The second connecting portion is a second wedge-shaped hole (121) extending along the direction of movement of the sample fixing mechanism (5), the opening of the second wedge-shaped hole (121) on the side close to the heating furnace (3) is larger than the opening on the side away from the heating furnace (3), and the fourth connecting portion is a second wedge-shaped block (521) on the transmission fixture (52), and the second wedge-shaped block (521) and the second wedge-shaped hole (121) are matched and snap-fitted.

2. The Hopkinson tie rod high temperature synchronous control device according to claim 1, characterized in that: The first wedge-shaped hole (111) includes a wedge-shaped hole A (1111) and a wedge-shaped hole B (1112) arranged along the radial direction of the incident rod connecting fixture (11) and connected to each other, the openings of the wedge-shaped hole A (1111) and the wedge-shaped hole B (1112) on the side close to the heating furnace (3) are larger than the openings on the side away from the heating furnace (3), the radial opening on one side of the wedge-shaped hole A (1111) is larger than the radial opening on the same side of the wedge-shaped hole B (1112), and the first wedge block (511) includes a wedge block A (5111) at one end away from the sample (13) that matches the wedge-shaped hole A (1111), and a wedge block B (5112) at one end close to the sample (13) that matches the wedge-shaped hole B (1112); The second wedge-shaped hole (121) includes a wedge-shaped hole C (1211) and a wedge-shaped hole D (1212) arranged along the radial direction of the transmission rod connecting clamp (12) and connected to each other, the openings of the wedge-shaped hole C (1211) and the wedge-shaped hole D (1212) on the side close to the heating furnace (3) are larger than the openings on the side away from the heating furnace (3), the radial opening on one side of the wedge-shaped hole C (1211) is larger than the radial opening on the same side of the wedge-shaped hole D (1212), and the second wedge-shaped block (521) includes a wedge-shaped block C (5211) at an end away from the sample (13) that matches the wedge-shaped hole C (1211), and a wedge-shaped block D (5212) at an end close to the sample (13) that matches the wedge-shaped hole D (1212).

3. The Hopkinson tie rod high temperature synchronous control device according to claim 1, characterized in that: One end of the incident fixture (51) is provided with a first clamping groove (512) for clamping the sample (13) and a first positioning bolt for fixing the sample (13); one end of the incident fixture (51) is also provided with a first positioning hole (513) for installing the first positioning bolt, and the first positioning hole (513) is in conduction with the first clamping groove (512); One end of the transmission fixture (52) is provided with a second clamping groove (522) for clamping the sample (13) and a second positioning bolt for fixing the sample (13); one end of the transmission fixture (52) is also provided with a second positioning hole (523) for installing the second positioning bolt, and the second positioning hole (523) is in communication with the second clamping groove (522).

4. The Hopkinson tie rod high temperature synchronous control device according to any one of claims 1 to 3, characterized in that: A first guide seat (71) for slidingly guiding the sample fixing mechanism (5) is provided in the heating furnace (3). The first guide seat (71) is fixed to a side of the heating furnace (3) close to the furnace door (31). The first wedge block (511) is slidably connected to an inner side wall of one side of the first guide seat (71), and the second wedge block (521) is slidably connected to an inner side wall of the other side of the first guide seat (71).

5. The Hopkinson tie rod high temperature synchronous control device according to claim 4, characterized in that: The invention also includes a second guide seat (72) for slidingly guiding the sample fixing mechanism (5), wherein the second guide seat (72) is fixed on the support mechanism (4), and the second guide seat (72) is arranged on the movement path of the sample fixing mechanism (5), and the material pushing mechanism (6) pushes the sample fixing mechanism (5) to move, so that the first wedge block (511) is slidably connected to the inner side wall of one side of the second guide seat (72), and the second wedge block (521) is slidably connected to the inner side wall of the other side of the second guide seat (72).

6. The Hopkinson tie rod high temperature synchronous control device according to claim 5, characterized in that: The base (2) includes a furnace body base (21) for fixing the heating furnace (3), and a furnace body moving mechanism (8) is also provided on the furnace body base (21) for driving the heating furnace (3) to achieve communication between the first guide seat (71) and the second guide seat (72). The furnace body moving mechanism (8) includes a furnace body moving slide rail (81), a furnace body moving air pump (82) and a furnace body moving telescopic rod (83). The furnace body moving slide rail (81) is arranged on the furnace body base (21), and a furnace body moving slider (32) that cooperates with the furnace body moving slide rail (81) is provided at the bottom of the heating furnace (3). One end of the furnace body moving air pump (82) is fixedly connected to the base (2), and the other end of the furnace body moving air pump (82) is fixedly connected to the heating furnace (3) through the furnace body moving telescopic rod (83).

7. The Hopkinson tie rod high temperature synchronous control device according to claim 1, characterized in that: The support mechanism (4) comprises a first chuck (41) for fixing the incident rod connecting fixture (11), a second chuck (42) for fixing the transmission rod connecting fixture (12), and a support slide rail (43); the first chuck (41) is slidably connected to the support slide rail (43) via a first support slider (44); and the second chuck (42) is slidably connected to the support slide rail (43) via a second support slider (45).

8. The Hopkinson tie rod high temperature synchronous control device according to claim 1, characterized in that: The material pushing mechanism (6) includes a material pushing air pump (61), a material telescopic rod (62) and a pushing block (63). The material pushing air pump (61) is fixed to the outside of the side of the heating furnace (3) away from the furnace door (31). One end of the material telescopic rod (62) is connected to the material pushing air pump (61). The other end of the material telescopic rod (62) extends into the heating furnace (3) and is fixedly connected to the pushing block (63). The pushing block (63) abuts against the sample fixing mechanism (5).

9. The Hopkinson tie rod high temperature synchronous control device according to claim 1, characterized in that: The heating furnace (3) is provided with a furnace door lifting mechanism (9) beside the furnace door (31), and the furnace door lifting mechanism (9) includes a furnace door lifting slide rail (91), a furnace door lifting air pump (92) and a furnace door telescopic rod (93). The furnace door lifting slide rail (91) is fixed to the side of the furnace door (31) of the heating furnace (3), and the furnace door (31) is provided with a furnace door moving slider (311) that cooperates with the furnace door lifting slide rail (91). One end of the furnace door lifting air pump (92) is fixed to the furnace door lifting slide rail (91), and the other end of the furnace door lifting air pump (92) is fixedly connected to the furnace door (31) through the furnace door telescopic rod (93).

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