A temperature measuring device for surface pressurization test of automobile parts

Abstract

The application discloses a temperature measuring device for surface pressure test of automobile parts, which comprises a measuring table and a pressure device, wherein the pressure device is provided with a pressure rod, and a main pressure head is fixedly arranged on the pressure rod; a plurality of auxiliary pressure heads are further arranged, and the plurality of auxiliary pressure heads are abutted with each other, and the auxiliary pressure head adjacent to the main pressure head is abutted with the main pressure head; the main fixed pipe and the plurality of auxiliary fixed pipes form an adjusting channel by arranging the main pressure head and the plurality of auxiliary pressure heads, the sliding pipe slides, the connecting rod drives the pressing block to slide in the adjusting channel, and the abutment between the plurality of auxiliary pressure heads and between the main pressure head and the adjacent auxiliary pressure head is used to connect the auxiliary pressure head with the main pressure head, and the auxiliary pressure head is passively unlocked, so that the size of the pressing area of the measuring piece is adjusted, the phenomenon that the pressing surface needs to be replaced by the pressure heads with different sizes is avoided, and the portability of the pressing area adjustment in the measuring process is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of pressure and temperature testing technology for automotive parts, and more specifically to a temperature measuring device for pressure testing of automotive parts surfaces. Background Technology

[0002] Automotive parts testing ensures the safety, reliability, compliance, and performance of parts throughout their entire lifecycle, mitigating vehicle malfunction risks from the source, protecting driving safety, and supporting automakers' product quality control and the implementation of industry standards. Its essence is to "simulate real working conditions, identify potential hazards in advance, and verify whether the design and manufacturing meet the requirements."

[0003] Typical testing involves pressure testing and temperature testing. In the pressure testing of automotive parts, the temperature changes on both sides of the pressure application point are monitored simultaneously. The core is to use temperature data to reverse verify the pressure-bearing state of the parts, discover potential structural defects, and evaluate their true reliability under "pressure-temperature coupled conditions".

[0004] In existing technologies, when conducting tests, it is necessary not only to adjust the pressure but also to change the pressure head to adjust the size of the pressure application area, measure the temperature values ​​on both sides of the contact surface, and calculate the difference. This process is quite troublesome, making the measurement operation rather cumbersome. Summary of the Invention

[0005] The purpose of this invention is to provide a temperature measuring device for pressure testing of automotive parts surfaces, thereby addressing the aforementioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A temperature measuring device for pressure testing of automotive parts surface includes a measuring platform and a pressure device, a pressure rod is provided on the pressure device, and a main pressure head is fixedly provided on the pressure rod;

[0008] It also includes multiple auxiliary pressure heads, which abut against each other, and the auxiliary pressure head adjacent to the main pressure head abuts against the main pressure head.

[0009] A main fixed pipe is fixedly installed on the main pressure head, and auxiliary fixed pipes are fixedly installed on multiple auxiliary pressure heads. The main fixed pipe and multiple auxiliary fixed pipes form an adjustment channel.

[0010] A sliding tube is slidably mounted on the pressure rod, a connecting rod is rotatably mounted on the sliding tube, a pressing block is rotatably mounted on the connecting rod, and the pressing block is slidably mounted in the adjustment channel.

[0011] When the unlocking component is activated and the pressure block is slid to connect to the pressure head, the secondary pressure head is passively unlocked.

[0012] Preferably, a rotating tube is rotatably provided on the sliding tube, a protrusion is fixedly provided on the rotating tube, a spiral groove is provided on the pressure rod, and the protrusion is slidably provided in the spiral groove.

[0013] Preferably, the spiral groove is provided with a first abutting part, a second abutting part, a third abutting part and a fourth abutting part;

[0014] The first, second, third, and fourth abutting parts all engage with the protrusions.

[0015] Preferably, a resistance block is slidably arranged on the rotating tube, and four resistance grooves are provided on the pressure rod, with the resistance block selectively engaging with multiple resistance grooves.

[0016] Preferably, a resistance spring is provided between the resistance block and the rotating tube, with both ends of the resistance spring fixedly connected to the resistance block and the rotating tube, respectively.

[0017] Preferably, the four resistance grooves correspond to the first abutment portion, the second abutment portion, the third abutment portion, and the fourth abutment portion, respectively.

[0018] Preferably, a column is fixedly installed on the measuring platform, a support frame is slidably installed on the column, a plug-in seat is fixedly installed on multiple auxiliary fixed tubes, a support rod is fixedly installed on the support frame, and the support rod is plugged into and engaged with multiple plug-in seats.

[0019] Preferably, the unlocking component includes a shaped rod fixedly mounted on the pressing block, an abutment pin fixedly mounted on the shaped rod, an abutment groove mounted on the support rod, and the abutment pin and the abutment groove being slidably inserted into each other.

[0020] Preferably, each of the multiple connectors is provided with a reserved slot for the passage of irregularly shaped rods.

[0021] Preferably, the length of the resistance groove is greater than that of the resistance block, and the resistance block is provided with an arc-shaped surface, which abuts against the resistance groove.

[0022] In the above technical solution, the temperature measuring device for surface pressure testing of automotive parts provided by the present invention has the following beneficial effects:

[0023] By setting a main pressure head and multiple auxiliary pressure heads, and forming an adjustment channel between the main fixed tube and multiple auxiliary fixed tubes, the sliding tube slides, and the connecting rod drives the pressing block to slide within the adjustment channel. The connection between the auxiliary pressure heads and the main pressure head is completed through the contact between the multiple auxiliary pressure heads and between the main pressure head and adjacent auxiliary pressure heads. At the same time, the auxiliary pressure heads are passively unlocked, so as to achieve the effect of adjusting the pressure area of ​​the measuring piece. This avoids the phenomenon of needing to change pressure heads of different sizes to adjust the pressure surface, and effectively improves the portability of pressure area adjustment during the measurement process.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0025] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the main pressure head and auxiliary pressure head structure provided in an embodiment of the present invention;

[0029] Figure 3 This is a front view and a partial enlarged view of the main pressure head and the auxiliary pressure head provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the pressure rod and auxiliary fixing tube structure provided in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the support frame structure provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the internal structure of the sliding tube and the rotating tube provided in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the spiral groove structure provided in an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Measuring platform; 11. Column; 12. Pressure device; 2. Pressure rod; 21. Main pressure head; 22. Main fixing tube; 23. Resistance groove; 3. Secondary pressure head; 31. Secondary fixing tube; 32. Insertion seat; 33. Reserved groove; 4. Sliding tube; 41. Pressing block; 42. Connecting rod; 43. Irregular rod; 44. Abutment pin; 5. Rotating tube; 51. Resistance block; 52. Resistance spring; 53. Protrusion; 6. Support frame; 61. Support rod; 62. Abutment groove; 7. First abutment part; 71. Second abutment part; 72. Third abutment part; 73. Fourth abutment part. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0037] Please refer to 1-7. A temperature measuring device for surface pressure testing of automotive parts includes a measuring platform 1 and a pressure device 12. A pressure rod 2 is provided on the pressure device 12, and a main pressure head 21 is fixedly provided on the pressure rod 2. It also includes multiple auxiliary pressure heads 3, which abut against each other. The auxiliary pressure heads 3 adjacent to the main pressure head 21 abut against the main pressure head 21. A main fixing tube 22 is fixedly provided on the main pressure head 21, and auxiliary fixing tubes 31 are fixedly provided on each of the multiple auxiliary pressure heads 3. The main fixing tube 22 and the multiple auxiliary fixing tubes 31 form an adjustment channel. A sliding tube 4 is slidably provided on the pressure rod 2, and a connecting rod 42 is rotatably provided on the sliding tube 4. A pressing block 41 is rotatably provided on the connecting rod 42 and is slidably provided in the adjustment channel. An unlocking component is included. When the pressing block 41 slides to connect with the pressure head, it passively unlocks the auxiliary pressure head 3, and the pressure device 12 drives the pressure rod. 2. The pressure rod 2 moves downward, causing the main pressure head 21 on the pressure rod 2 to apply pressure to the measuring piece and measure the temperature on both sides of the pressure application area. By setting multiple auxiliary pressure heads 3, when adjusting the pressure application area, the main pressure head 21 is connected to the auxiliary pressure head 3 to increase the pressure application area on the measuring piece. During adjustment, the sliding tube 4 slides on the pressure rod 2, and the pressing block 41 slides in the adjustment channel formed by the main fixing tube 22 and multiple auxiliary fixing tubes 31 through the connecting rod 42. After the pressing block 41 slides to the position of the auxiliary fixing tube 31 above the auxiliary pressure head 3, the connection between it and the auxiliary pressure head 3 is completed. At the same time, under the abutting action between multiple auxiliary pressure heads 3 and the abutting action between the main pressure head 21 and the adjacent auxiliary pressure head 3, the auxiliary pressure head 3 between the main pressure head 21 is also connected, so that the pressure head can switch between multiple pressure application areas on the measuring piece to facilitate the adjustment of the pressure application area.

[0038] Specifically, a rotating tube 5 is rotatably mounted on the sliding tube 4, and a protrusion 53 is fixedly mounted on the rotating tube 5. A spiral groove is provided on the pressure rod 2, and the protrusion 53 is slidably mounted in the spiral groove. When the rotating tube 5 rotates, the cooperation between the protrusion 53 and the spiral groove causes the rotating tube 5 to move the sliding tube 4 downward. The sliding tube 4 pushes the pressing block 41 through the connecting rod 42, causing the pressing block 41 to slide in the adjustment channel. The adjustment channel is composed of a main fixed tube and multiple auxiliary fixed tubes 31. After the pressing block 41 has slid and is located above any auxiliary fixed tube 31, the auxiliary pressure head 3 corresponding to that fixed tube, as well as the auxiliary pressure head 3 between that auxiliary pressure head 3 and the main pressure head 21, are all connected to the main pressure head 21. The pressure head that has been connected can be moved downward by the downward movement of the pressure rod 2 to apply pressure to the measuring piece.

[0039] In a further embodiment of the present invention, a first abutting part 7, a second abutting part 71, a third abutting part 72, and a fourth abutting part 73 are provided on the spiral groove; the first abutting part 7, the second abutting part 71, the third abutting part 72, and the fourth abutting part 73 all abut against the protrusion 53. When the rotating tube 5 rotates and the protrusion 53 is located at the first abutting part 7, the pressing head is located above the secondary pressing head 3 adjacent to the main pressing head 21. At this time, under the action of the pressing block 41, the secondary pressing head 3 is connected to the main pressing head 21. At this time, since the upper and lower surfaces of the first abutting part 7 are both flat, the first abutting part 7... The vertical sliding of the rotating tube 5 can be restricted by limiting the vertical sliding of the protrusion 53, thereby restricting the sliding tube 4. The sliding tube 4 restricts the pressing block 41 through the connecting rod 42. At the same time, in conjunction with the abutting action between the secondary pressure head 3 and the main pressure head 21, the connection between the secondary pressure head 3 and the main pressure head 21 is completed. Similarly, when the protrusion 53 is located at the second abutting part 71, the third abutting part 72, and the fourth abutting part 73, it has the same function. The difference is that when the protrusion 53 is located at different abutting parts, the number of secondary pressure heads 3 that are connected with the main pressure head 21 is different, that is, the pressure area is different.

[0040] Furthermore, a resistance block 51 is slidably mounted on the rotating tube 5, and four resistance grooves 23 are provided on the pressure rod 2. The resistance block 51 selectively abuts against multiple resistance grooves 23. A resistance spring 52 is provided between the resistance block 51 and the rotating tube 5, with both ends of the resistance spring 52 fixedly connected to the resistance block 51 and the rotating tube 5, respectively. The four resistance grooves 23 correspond to the first abutment part 7, the second abutment part 71, the third abutment part 72, and the fourth abutment part 73, respectively. The length of the resistance groove 23 is greater than that of the resistance block 51, and the resistance block 51 is provided with... The curved surface abuts against the resistance groove 23. When the rotating tube 5 rotates, the resistance block 51 slides, compressing the resistance spring 52. The length of the resistance groove 23 is greater than that of the resistance block 51 to prevent the resistance block 51 from contacting the resistance groove 23 and causing the rotating tube 5 to stop rotating. By setting multiple resistance grooves 23, each corresponding to abutting parts, when the protrusion 53 is located at an abutting part, the resistance block 51 abuts against the corresponding resistance groove 23, and the resistance spring 52... Providing a certain amount of resistance ensures that the protrusion 53 can be stably positioned in the abutment groove 62, preventing the sliding tube 4 from sliding and ensuring the stability of the connecting rod 42 and the pressing block 41. This achieves stable connection between the secondary pressure head 3 and the main pressure head 21. For example, when the rotating tube 5 rotates and slides, causing the protrusion 53 to slide from the first abutment part 7 to the second abutment part 71, the pressing block 41 slides under the action of the connecting rod 42 into the secondary fixed tube 31 above the secondary pressure head 3 adjacent to the main pressure head 21, thus completing the connection between the secondary pressure head 3 and the main pressure head 21. At this time, the resistance... Under the action of the resistance spring 52, block 51 abuts against the resistance groove 23 corresponding to the second abutment part 71, providing a certain resistance to the rotation of the rotating tube 5, making the abutment of the protrusion 53 and the second abutment part 71 more stable, avoiding the phenomenon that the force of the connecting rod 42 acts on the sliding tube 4 due to the unstable abutment of the protrusion 53 and the second abutment part 71, causing the sliding tube 4 to slide with the rotating tube 5 and causing the rotating tube 5 to rotate. In this way, the stability of the connecting rod 42 and the pressing head is guaranteed, that is, the connection stability of the auxiliary pressing head 3 and the main pressing head 21 is guaranteed.

[0041] Furthermore, a column 11 is fixedly installed on the measuring platform 1, and a support frame 6 is slidably installed on the column 11. A plug-in seat 32 is fixedly installed on each of the multiple auxiliary fixed tubes 31, and a support rod 61 is fixedly installed on the support frame 6. The support rod 61 is plugged into the multiple plug-in seats 32. When the auxiliary pressure head 3 is not in use, the auxiliary pressure head 3 is supported and fixed by plugging the support rod 61 into the plug-in seat 32.

[0042] In a further embodiment of the present invention, the unlocking component includes a shaped rod 43 fixedly mounted on the pressing block 41, an abutment pin 44 fixedly mounted on the shaped rod 43, and an abutment groove 62 mounted on the support rod 61. The abutment pin 44 and the abutment groove 62 are slidably inserted into each other. During the sliding process of the pressing block 41, the support rod 61 is slid along with the abutment pin 44 through the grounding of the abutment groove 62. When the pressing block 41 slides above one of the secondary pressure heads 3, and the secondary pressure head 3 is connected to the main pressure head 21, the support rod 61 slides until it disengages from the insertion seat 32 on the secondary pressure head 3, thus unlocking the secondary pressure head 3. When the pressure rod 2 moves down with the pressure head, the abutment pin 44 disengages from the abutment groove 62, and the support rod 61 continues to support the unconnected secondary pressure head 3.

[0043] In the embodiments provided by the present invention, each of the multiple plug-in sockets 32 is provided with a reserved groove 33 for the irregular rod 43 to pass through. The reserved groove 33 is used to prevent the irregular rod 43 from affecting the plug-in socket 32 ​​during the sliding process with the pressing block 41.

[0044] In this invention, the pressure device 12 is used to drive the pressure rod 2 to move downward, apply pressure to the measuring piece, and display the pressure data. The measuring table 1 is also equipped with a temperature detection device for detecting the temperature on both sides of the pressure application point, and a clamp for fixing the measuring piece. The pressure device 12, the temperature detection device, and the clamp are all existing technologies and will not be described in detail.

[0045] Working principle: When using this invention, the measuring piece is fixed on the measuring table 1 by a clamp. Then, the pressure device 12 causes the pressure rod 2 to move down with the main pressure head 21 to apply pressure to the measuring piece.

[0046] When adjusting the pressure area, the pressure device 12 raises and resets the main pressure head 21, causing the rotating tube 5 to rotate. During rotation, the rotating tube 5 moves downward along with the sliding tube 4 under the action of the spiral groove of the protrusion 53, and the pressing block 41 slides in the adjustment channel via the connecting rod 42. When the protrusion 53 slides from the first abutment part 7 to the second abutment part 71, the resistance block 51, under the action of the resistance spring 52, abuts against the resistance groove 23 corresponding to the second abutment part 71, providing a certain resistance to the rotation of the rotating tube 5. At this time, the pressing block 41 slides to the auxiliary pressure head adjacent to the main pressure head 21. The position of the secondary fixed tube 31 above 3 connects the main pressure head 21 with the adjacent secondary pressure head 3. When the pressing block 41 slides, the pressing block 41 slides with the support rod 61 and the support frame 6 through the cooperation of the abutment pin 44 and the abutment groove 62 on the shaped rod 43, so that the support rod 61 is disengaged from the insertion seat 32 on the adjacent secondary pressure head 3. At this time, the connection between the main pressure head 21 and the adjacent secondary pressure head 3 is completed. Then, the pressure device 12 makes the pressure rod 2 move down with the main pressure head 21 and the secondary pressure head 3 connected to it, so as to increase the pressure area on the measuring piece.

[0047] The above only applies to the connection between the main pressure head 21 and the secondary pressure head 3 adjacent to the main pressure head 21. When the pressing block 41 slides to the position of the secondary fixed tube 31 above the secondary pressure head 3, the secondary pressure head 3 completes the connection with the main pressure head 21, and connects multiple secondary pressure heads 3 between the secondary pressure head 3 and the main pressure head 21, so as to achieve the effect of adjusting the pressure area on the measuring piece according to the measurement needs.

[0048] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A temperature measuring device for pressure testing of automotive parts surfaces, comprising a measuring platform (1) and a pressure device (12), characterized in that, The pressure device (12) is provided with a pressure rod (2), and a main pressure head (21) is fixedly provided on the pressure rod (2). It also includes multiple auxiliary pressure heads (3), which abut against each other, and the auxiliary pressure head (3) adjacent to the main pressure head (21) abuts against the main pressure head (21); A main fixing tube (22) is fixedly installed on the main pressure head (21), and a secondary fixing tube (31) is fixedly installed on each of the multiple secondary pressure heads (3). The main fixing tube (22) and the multiple secondary fixing tubes (31) form an adjustment channel. A sliding tube (4) is slidably arranged on the pressure rod (2), a connecting rod (42) is rotatably arranged on the sliding tube (4), a pressing block (41) is rotatably arranged on the connecting rod (42), and the pressing block (41) is slidably arranged in the adjustment channel; When the pressing block (41) slides to connect with the pressing head, the secondary pressing head (3) is passively unlocked. A column (11) is fixedly installed on the measuring platform (1), and a support frame (6) is slidably installed on the column (11). A plug-in seat (32) is fixedly installed on each of the multiple auxiliary fixed tubes (31). A support rod (61) is fixedly installed on the support frame (6), and the support rod (61) is plugged into the multiple plug-in seats (32). The unlocking component includes a shaped rod (43) fixedly mounted on the pressing block (41), an abutment pin (44) fixedly mounted on the shaped rod (43), an abutment groove (62) mounted on the support rod (61), and the abutment pin (44) and the abutment groove (62) being slidably inserted into each other. Each of the aforementioned plug-in sockets (32) is provided with a reserved slot (33) for the irregular rod (43) to pass through; A rotating tube (5) is rotatably mounted on the sliding tube (4), and a protrusion (53) is fixedly mounted on the rotating tube (5). A spiral groove is provided on the pressure rod (2), and the protrusion (53) is slidably mounted in the spiral groove. The spiral groove is provided with a first abutting part (7), a second abutting part (71), a third abutting part (72) and a fourth abutting part (73). The first abutting part (7), the second abutting part (71), the third abutting part (72) and the fourth abutting part (73) all abut against the protrusion (53); A resistance block (51) is slidably disposed on the rotating tube (5), and four resistance grooves (23) are disposed on the pressure rod (2). The resistance block (51) selectively abuts against multiple resistance grooves (23).

2. The temperature measuring device for pressure testing of automotive parts surface according to claim 1, characterized in that, A resistance spring (52) is provided between the resistance block (51) and the rotating tube (5), and the two ends of the resistance spring (52) are fixedly connected to the resistance block (51) and the rotating tube (5) respectively.

3. The temperature measuring device for pressure testing of automotive parts surface according to claim 1, characterized in that, The four resistance grooves (23) correspond to the first abutment (7), the second abutment (71), the third abutment (72) and the fourth abutment (73), respectively.

4. The temperature measuring device for pressure testing of automotive parts surface according to claim 1, characterized in that, The length of the resistance groove (23) is greater than that of the resistance block (51), and the resistance block (51) is provided with an arc-shaped surface, which abuts against the resistance groove (23) through the arc-shaped surface.

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