Push-pull force testing mechanism
By designing a push-pull force testing mechanism, small-sized metal parts can be positioned, fixed, and tested for push-pull force, which solves the problem of incomplete welding during the welding process and improves product reliability and production efficiency.
Patent Information
- Application Number
- CN202422679285.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-01
AI Technical Summary
In product processing, incomplete welding is prone to occur during the welding of small-sized metal parts, resulting in weak connection strength, difficulty in detection, and impact on product reliability and quality consistency.
Design a push-pull force testing mechanism, including a product positioning component, a pressing component, and a push-pull force testing component. The mechanism uses a driving device to position, fix, and apply push-pull force to the product under test, and uses sensors to detect the welding strength.
It enables rapid and accurate push-pull force testing, ensuring product quality and improving production efficiency and the reliability of welding strength.
Smart Images
Figure CN223513033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of push-pull force testing devices, and in particular to a push-pull force testing mechanism. Background Technology
[0002] With the rapid development of modern industry, the requirements for product quality and reliability are becoming increasingly stringent. In product manufacturing, the welding of small metal parts is often involved, requiring these small parts to be welded to the main components. However, these small metal parts are prone to defects such as incomplete welds during the welding process, resulting in weak connections between the metal parts and the main components. Furthermore, these incomplete welds are not easily detected in subsequent processes, thus reducing product reliability and quality consistency.
[0003] Therefore, it is necessary to design a push-pull force testing mechanism to test the strength of the product. Utility Model Content
[0004] The purpose of this invention is to provide a push-pull force testing mechanism that can conveniently, quickly, and accurately perform push-pull force testing on the product to be tested, thereby ensuring product quality and improving production efficiency.
[0005] This utility model provides a push-pull force testing mechanism, comprising:
[0006] Base;
[0007] A product positioning component is disposed on the base; the product positioning component includes a support base, a positioning component, and a first driving device. The support base is used to support the product to be tested, and the positioning component is located below the support base and is used to position the product to be tested. The first driving device is connected to the positioning component and is used to drive the positioning component to move up and down so that the positioning component is in contact with or separates from the product to be tested.
[0008] A pressure assembly is disposed on the base; the pressure assembly includes a movable pressure plate and a second driving device, the movable pressure plate is used to press and fix the product to be tested; the second driving device is connected to the movable pressure plate and is used to drive the movable pressure plate to move up and down so that the movable pressure plate abuts against or separates from the product to be tested.
[0009] A push-pull force testing assembly is disposed on the base; the push-pull force testing assembly includes a connecting component, a push-pull force sensing component, and a third driving device; the connecting component is used to connect with the product to be tested; the push-pull force sensing component is connected between the connecting component and the third driving device; the third driving device is used to apply a push or pull force to the connecting component; and the push-pull force sensing component is used to detect the magnitude of the force applied by the third driving device to the connecting component.
[0010] In one possible implementation, the connecting component includes a connecting pin for engaging with a test hole on the product under test; the third driving device is used to apply a pushing or pulling force to the connecting pin in the horizontal direction.
[0011] In one possible implementation, the push-pull force testing assembly further includes a fourth driving device for driving the connecting pin to move up and down, so that the connecting pin is inserted into or disengaged from a test hole on the product under test.
[0012] In one possible implementation, the push-pull force testing assembly further includes a base plate, on which the third driving device is disposed; the fourth driving device is connected to the base plate and is used to drive the base plate to move up and down, thereby causing the connecting component, the push-pull force sensing component and the third driving device to move up and down as a whole.
[0013] In one possible implementation, the connecting component further includes a mounting base and a first elastic element, the push-pull force sensing component is connected to the mounting base, the connecting pin is disposed on the mounting base and is movable up and down relative to the mounting base; the first elastic element is capable of applying elastic force to the connecting pin along the insertion direction of the connecting pin and the test hole.
[0014] In one possible implementation, the push-pull force sensing component includes a sensing assembly and a push plate. The sensing assembly includes a fixed base, a tension / pressure sensor, and a second elastic element. The tension / pressure sensor is disposed on the fixed base, and the fixed base is fixedly connected to the connecting component via a slide rod.
[0015] The push plate is sleeved on the slide rod and can slide along the slide rod. The two ends of the second elastic element are respectively connected to the push plate and the tension / pressure sensor. The third driving device is connected to the push plate and is used to drive the push plate to slide along the slide rod.
[0016] In one possible implementation, there are multiple sensing components and multiple connecting components, with each of the multiple sensing components corresponding to one of the multiple connecting components.
[0017] In an implementable manner, the push-pull force test component further includes a linear guide rail module, the linear guide rail module includes a slide rail and a slider disposed on the slide rail, and the extending direction of the slide rail is parallel to the extending direction of the slide bar; the slider is connected to the push plate, and the slider and the push plate can slide along the slide rail together.
[0018] In an implementable manner, the positioning component includes a support plate, a positioning table and a positioning pin disposed on the support plate, and the first driving device is connected to the support plate; during positioning, the positioning table can abut against the product to be tested, and the positioning pin can be inserted into the positioning hole on the product to be tested.
[0019] In an implementable manner, a limiting groove is provided on the bearing base, and the side of the product to be tested is located in the limiting groove; before the start of the test and after the end of the test, the product to be tested can move horizontally on the bearing base, and the limiting groove is used to limit the product to be tested during the horizontal movement of the product to be tested.
[0020] The push-pull force test mechanism provided by the present utility model, by setting a product positioning component, a pressing component and a push-pull force test component, during the test, place the product to be tested on the bearing base, use the first driving device to drive the positioning component to move upward, so that the positioning component is connected to the product to be tested, thereby positioning the product to be tested, and then use the second driving device to drive the movable pressing plate to move downward, so that the movable pressing plate presses and fixes the product to be tested from top to bottom, then connect the connecting component to the product to be tested, use the third driving device to apply a pushing force or a pulling force to the connecting component, and judge whether the structural strength of the product to be tested is qualified according to the acting force detected by the push-pull force sensing component; after the test is completed, use the first driving device to drive the positioning component to separate from the product to be tested, use the second driving device to drive the movable pressing plate to separate from the product to be tested, and disconnect the connection between the connecting component and the product to be tested, then the tested product can be removed or moved away from the bearing base. This push-pull force test mechanism can conveniently, quickly and accurately perform push-pull force tests on products to be tested, ensure product quality and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic structural diagram of the push-pull force test mechanism in an embodiment of the present utility model.
[0022] Figure 2 is Figure 1 an exploded structural diagram of
[0023] Figure 3 is an exploded structural diagram of the pressing component in an embodiment of the present utility model.
[0024] Figure 4 This is a schematic diagram of the product positioning component in an embodiment of the present utility model.
[0025] Figure 5 for Figure 4 A schematic diagram of the explosion structure.
[0026] Figure 6 This is a schematic diagram of the push-pull force testing component in an embodiment of this utility model.
[0027] Figure 7 for Figure 6 A schematic diagram of the explosion structure.
[0028] Figure 8 This is a schematic diagram showing the cooperative relationship between a single connecting component, a single sensing component, and a push plate in an embodiment of this utility model.
[0029] Figure 9 for Figure 8 A schematic diagram of the explosion structure.
[0030] Figure 10 for Figure 8 A cross-sectional schematic diagram. Detailed Implementation
[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0032] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0033] The directional terms such as "up," "down," "left," "right," "front," "back," "top," and "bottom" (if present) used in the specification and claims of this utility model are defined according to the position of the structures in the drawings and the relative positions of the structures, and are only for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed by this utility model.
[0034] like Figures 1 to 7 As shown, the push-pull force testing mechanism provided in this embodiment of the present invention is used to perform push and / or pull force tests on the product 5 to be tested. The product 5 to be tested can be a welded part. By performing push-pull force tests on the product 5 to be tested, the welding strength between the components in the product 5 to be tested can be detected. Of course, the product 5 to be tested can also be a non-welded part, and the push-pull force testing mechanism can be used to detect the structural strength of the product.
[0035] The push-pull force testing mechanism includes:
[0036] Base 1;
[0037] Product positioning component 2 is mounted on base 1. Product positioning component 2 includes a support base 21, a positioning component 22, and a first driving device 23. The support base 21 supports the product to be tested 5, i.e., the product to be tested 5 is placed on the support base 21. The positioning component 22 is located below the support base 21 and is used to position the product to be tested 5. The first driving device 23 is connected to the positioning component 22 and is used to drive the positioning component 22 to move up and down, so that the positioning component 22 can connect with or separate from the product to be tested 5. When the first driving device 23 drives the positioning component 22 to move upward, the positioning component 22 can connect with the product to be tested 5, thereby positioning the product to be tested 5; when the first driving device 23 drives the positioning component 22 to move downward, the positioning component 22 can separate from the product to be tested 5.
[0038] A pressing assembly 3 is mounted on the base 1. The pressing assembly 3 includes a movable pressing plate 31 and a second driving device 32. The movable pressing plate 31 is located above the supporting base 21 and extends horizontally. The movable pressing plate 31 is used to press and fix the product 5 to be tested from top to bottom to prevent the product from shifting or deforming during testing. The second driving device 32 is connected to the movable pressing plate 31 and is used to drive the movable pressing plate 31 to move up and down, so that the movable pressing plate 31 abuts against or separates from the product 5 to be tested. When the second driving device 32 drives the movable pressing plate 31 downward, the movable pressing plate 31 abuts against the product 5 to be tested, thereby fixing the product 5 to be tested; when the second driving device 32 drives the movable pressing plate 31 upward, the movable pressing plate 31 separates from the product 5 to be tested.
[0039] A push-pull force testing assembly 4 is mounted on a base 1. The assembly includes a connecting component 41, a push-pull force sensing component 42, and a third driving device 43. The connecting component 41 is used to connect to the product under test 5. The push-pull force sensing component 42 is connected between the connecting component 41 and the third driving device 43. The third driving device 43 applies a push or pull force to the connecting component 41 (the third driving device 43 applies a push or pull force to the connecting component 41 through the push-pull force sensing component 42; the push / pull force applied by the third driving device 43 to the connecting component 41 is also the push / pull force experienced by the product under test 5). The push-pull force sensing component 42 detects the magnitude of the force applied by the third driving device 43 to the connecting component 41. When the force applied by the third driving device 43 to the connecting component 41 is abnormal, the product under test 5 is determined to be abnormal.
[0040] Specifically, since the connecting component 41 is connected to the product under test 5, if the product under test 5 is normal, when the third driving device 43 applies a pushing or pulling force to the connecting component 41, the force applied by the third driving device 43 to the connecting component 41 remains constant (or fluctuates slightly within a certain range); if the structural strength of the product under test 5 is weak, for example, if the welding strength between the components in the product under test 5 is weak, then during the test, when the third driving device 43 applies a pushing or pulling force to the connecting component 41, the components in the product under test 5 may become detached from the weld, which will cause a large change in the force applied by the third driving device 43 to the connecting component 41 (when the product under test 5 becomes detached from the weld, the connecting component 41 loses the force of the product under test 5, that is, the connecting component 41 is in a suspended state, at which time the pushing or pulling force of the third driving device 43 to the connecting component 41 decreases, for example, to 0), and thus it is determined that the product under test 5 is abnormal.
[0041] The push-pull force testing mechanism provided in this embodiment of the utility model, by setting up a product positioning component 2, a pressing component 3, and a push-pull force testing component 4, allows the product to be tested 5 to be placed on the bearing base 21 during testing. The first driving device 23 drives the positioning component 22 to move upward, making the positioning component 22 contact the product to be tested 5, thereby positioning the product to be tested 5. Then, the second driving device 32 drives the movable pressure plate 31 to move downward, making the movable pressure plate 31 press and fix the product to be tested 5 from top to bottom. Finally, the connecting component 41 is connected to the product to be tested 5. Next, the third drive device 43 applies a pushing or pulling force to the connecting component 41. Based on the force detected by the push-pull force sensing component 42, it is determined whether the structural strength (or welding strength) of the product under test 5 is qualified. After the test, the first drive device 23 drives the positioning component 22 to separate from the product under test 5, and the second drive device 32 drives the movable pressure plate 31 to separate from the product under test 5, disconnecting the connection between the connecting component 41 and the product under test 5. The tested product can then be removed from the bearing base 21 for testing the next set of products. This push-pull force testing mechanism can conveniently, quickly, and accurately perform push-pull force testing on the product under test 5, ensuring product quality and improving production efficiency.
[0042] like Figures 1 to 3 As shown, in one embodiment, the base 1 includes a support seat 12 and a support frame 11 arranged opposite to each other, and a connecting plate 13 connecting the support seat 12 and the support frame 11. The pressing component 3 is disposed on the support frame 11, and the product positioning component 2 and the push-pull force testing component 4 are both disposed on the support seat 12.
[0043] like Figures 1 to 3As shown, in one embodiment, the pressing assembly 3 further includes a fixed plate 34 and a bracket 33. The fixed plate 34 is fixedly connected to the support frame 11, and the second driving device 32 is fixedly mounted on the fixed plate 34. The movable pressure plate 31 is fixedly mounted on the bracket 33, and the second driving device 32 is connected to the bracket 33. The second driving device 32 can drive the bracket 33 to move up and down, thereby driving the movable pressure plate 31 to move up and down. In this embodiment, the second driving device 32 is a cylinder, and the output shaft of the second driving device 32 is connected to the bracket 33. Of course, in other embodiments, the second driving device 32 can also be other linear drive mechanisms, such as hydraulic cylinders, electric cylinders, etc.
[0044] like Figures 1 to 3 As shown, in one embodiment, the bracket 33 is slidably connected to the fixed plate 34, and the bracket 33 can move up and down along the fixed plate 34. Specifically, the fixed plate 34 is provided with a first guide device 36, and the bracket 33 is connected to the first guide device 36. The first guide device 36 is used to guide and limit the up and down movement of the bracket 33. In this embodiment, the first guide device 36 is a linear slide rail module. The slide rail in the linear slide rail module is connected to the fixed plate 34, and the slider in the linear slide rail module is connected to the bracket 33, thereby enabling the bracket 33 and the movable pressure plate 31 to move up and down stably. At the same time, the fixed plate 34 is also provided with a lifting buffer 35, which is connected to the bracket 33, thereby providing a buffering effect when the bracket 33 and the movable pressure plate 31 move up and down.
[0045] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the support base 12 is provided with a first load-bearing plate 121 and a second load-bearing plate 122, which are arranged vertically at intervals, with the first load-bearing plate 121 located above the second load-bearing plate 122. A bearing base 21 is fixedly disposed on the upper surface of the first load-bearing plate 121, and a first driving device 23 is fixedly disposed on the lower surface of the second load-bearing plate 122. A positioning component 22 is disposed between the first load-bearing plate 121 and the second load-bearing plate 122. A clearance hole 211 is provided on the bearing base 21 corresponding to the position of the positioning component 22, and a through hole 120 is provided on the first load-bearing plate 121 corresponding to the position of the clearance hole 211. The output shaft of the first driving device 23 passes through the second load-bearing plate 122 and is connected to the positioning component 22. The first driving device 23 can drive the positioning component 22 to move up and down within the clearance hole 211 and the through hole 120, so that the positioning component 22 can connect with or separate from the product 5 to be tested. In this embodiment, the first driving device 23 is a cylinder; of course, in other embodiments, the first driving device 23 can also be other linear drive mechanisms, such as hydraulic cylinders, electric cylinders, etc.
[0046] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the product positioning component 2 further includes a second guide device 25. The second guide device 25 is disposed on the second load-bearing plate 122 and is connected to the positioning component 22. The second guide device 25 can guide and limit the vertical movement of the positioning component 22. In this embodiment, the second guide device 25 is a linear bearing assembly. The linear bearing in the linear bearing assembly is disposed on the second load-bearing plate 122. The slide rod in the linear bearing assembly is connected to the positioning component 22. The slide rod can move up and down within the linear bearing, thereby playing a guiding and limiting role.
[0047] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the positioning component 22 includes a support plate 223 and a positioning platform 221 and a positioning pin 222 disposed on the support plate 223. A first driving device 23 is connected to the support plate 223 and can drive the support plate 223, the positioning platform 221, and the positioning pin 222 to move up and down. The positioning platform 221 is disposed corresponding to the clearance hole 211 and can move up and down within the clearance hole 211. During positioning, when the first driving device 23 drives the positioning component 22 to move upward, the positioning platform 221 can abut against the product 5 to be tested from bottom to top, and the positioning pin 222 can be inserted into the positioning hole 52 on the product 5 to be tested from bottom to top. At the same time, the positioning platform 221 is also provided with a positioning structure 224, which can also be inserted into the slot structure on the product 5 to be tested for positioning. Through the cooperation of the positioning platform 221 and the positioning pin 222, the product 5 to be tested can be precisely positioned. In addition to positioning the product 5 to be tested, the positioning platform 221 also provides support for the product 5 to be tested because it abuts against the product 5. The positioning platform 221 works in conjunction with the movable pressure plate 31 to firmly fix the product 5 to be tested.
[0048] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the support base 21 is provided with a limiting groove 210, and the side of the product under test 5 is located within the limiting groove 210. Before and after the test, the product under test 5 can move horizontally on the support base 21 (the direction of movement of the product under test 5 is the direction indicated by arrow X). The limiting groove 210 is used to limit the product under test 5 when it moves horizontally. Specifically, the support base 21 is provided with limiting grooves 210 on both sides, and the side of the product under test 5 on the opposite sides is located within the limiting grooves 210 on both sides.
[0049] Specifically, in this embodiment, the push-pull force testing mechanism can simultaneously perform push-pull force tests on multiple products 5 to be tested. In fact, during the production process, before being separated, the two ends of multiple products 5 to be tested are connected together by material strips 50, forming a continuous product strip. During the push-pull force test, the material pulling mechanism (not shown) pulls the product strip from the upper section (e.g., the welding section) to the supporting base 21. After the push-pull force test is completed, the material pulling mechanism then pulls the product strip from the push-pull force testing section to the lower section, thereby achieving continuous and rapid product testing and improving production efficiency. Before and after the test, since the product positioning component 2, the pressing component 3, and the push-pull force testing component 4 are not connected to the products 5 to be tested, the products 5 to be tested can move horizontally on the supporting base 21 under the traction of the material pulling mechanism. Simultaneously, to prevent the position of the products 5 to be tested from shifting during movement, a limiting groove 210 is provided on the supporting base 21 to limit the movement path of the products 5 to be tested.
[0050] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the support base 21 is provided with limiting strips 24 on both sides, and the limiting groove 210 is formed between the limiting strips 24 and the support base 21.
[0051] like Figure 1 , Figure 5 , Figures 6 to 10 As shown, in one embodiment, the connecting component 41 includes a connecting pin 411, which is connected to the third driving device 43 via a push-pull force sensing component 42. The connecting pin 411 is used to insert into the test hole 51 on the product under test 5 from top to bottom, thereby fixing the connecting pin 411 and the product under test 5 in the horizontal direction. The third driving device 43 is used to apply a push or pull force to the connecting pin 411 in the horizontal direction, thereby performing a push-pull force test on the product under test 5.
[0052] like Figure 1 , Figure 5 , Figures 6 to 10As shown, in one embodiment, the push-pull force testing assembly 4 further includes a fourth driving device 44, which drives the connecting pin 411 to move up and down, so that the connecting pin 411 can be inserted into or disengaged from the test hole 51 on the product under test 5. Specifically, the push-pull force testing assembly 4 also includes a base plate 45, and a third driving device 43 is fixedly mounted on the base plate 45; the fourth driving device 44 is connected to the base plate 45, and the fourth driving device 44 drives the base plate 45 to move up and down, so as to drive the connecting component 41, the push-pull force sensing component 42 and the third driving device 43 to move up and down as a whole, thereby causing the connecting pin 411 to move up and down and be inserted into or disengaged from the test hole 51 on the product under test 5.
[0053] Specifically, in this embodiment, when the fourth driving device 44 drives the base plate 45 to move downward, the base plate 45 can rest on the second support plate 122; the fourth driving device 44 is fixed to the lower surface of the second support plate 122, and the output shaft of the fourth driving device 44 passes through the second support plate 122 and is connected to the base plate 45. The push-pull force testing assembly 4 also includes a third guide device 47, which is disposed on the second support plate 122 and connected to the base plate 45. The third guide device 47 can guide and limit the vertical movement of the base plate 45. In this embodiment, the third guide device 47 is a linear bearing assembly. The linear bearing in the linear bearing assembly is disposed on the second support plate 122, and the slide rod in the linear bearing assembly is connected to the base plate 45. The slide rod can move up and down within the linear bearing, thereby playing a guiding and limiting role. In this embodiment, both the third drive device 43 and the fourth drive device 44 are cylinders; of course, in other embodiments, the third drive device 43 and the fourth drive device 44 can also be other linear drive mechanisms, such as hydraulic cylinders, electric cylinders, etc.
[0054] like Figure 1 , Figure 5 , Figures 6 to 10As shown, in one embodiment, the connecting component 41 further includes a mounting base 412 and a first elastic member 413. The push-pull force sensing component 42 is connected to the mounting base 412. The connecting pin 411 is disposed on the mounting base 412 and can move up and down relative to the mounting base 412. The first elastic member 413 can apply elastic force to the connecting pin 411 along the insertion direction S between the connecting pin 411 and the test hole 51 (the insertion direction S is also the direction from top to bottom). In this embodiment, the connecting component 41 adopts a floating elastic structure. During the insertion of the connecting pin 411 into the test hole 51, if the position of the product 5 under test shifts, the connecting pin 411 can move upward after contacting the product 5 under test (i.e., the connecting pin 411 is not inserted into the test hole 51 at this time). This avoids rigid contact between the connecting pin 411 and the product 5 under test, which could cause damage to the connecting component 41 and the product 5 under test. This improves the compatibility and service life of the push-pull force testing mechanism. Moreover, the floating elastic structure also makes the push-pull force testing mechanism suitable for testing different products. At the same time, when the connecting pin 411 moves upward, the first elastic element 413 is compressed and stores force. The first elastic element 413 can provide a restoring force for the connecting pin 411, so that the connecting pin 411 and the product 5 under test no longer interfere with each other, and then push the connecting pin 411 downward.
[0055] Specifically, in this embodiment, the first elastic element 413 is a spring, which is sleeved on the connecting pin 411, and both ends of the first elastic element 413 abut against the connecting pin 411 and the mounting base 412, respectively. Of course, in other embodiments, the first elastic element 413 may also adopt other configurations.
[0056] like Figures 6 to 10 As shown, in one embodiment, the push-pull force sensing component 42 includes a sensing assembly 420 and a push plate 425. The sensing assembly 420 includes a fixed base 421, a tension / pressure sensor 422, and a second elastic element 423. The tension / pressure sensor 422 is fixedly disposed on the fixed base 421 (specifically, the tension / pressure sensor 422 is fixedly disposed inside the fixed base 421). The fixed base 421 is fixedly connected to the connecting component 41 through a slide rod 424 (specifically, the fixed base 421 is fixedly connected to the mounting base 412 through the slide rod 424).
[0057] The push plate 425 is sleeved on the slide rod 424 and can slide along the slide rod 424. The two ends of the second elastic element 423 are respectively connected to the push plate 425 and the tension / pressure sensor 422. The third driving device 43 is connected to the push plate 425 and is used to drive the push plate 425 to slide along the slide rod 424. The second elastic element 423 can specifically be a spring.
[0058] Specifically, in this embodiment, the push-pull force testing component 4 is only used for tensile force testing. When the third driving device 43 drives the push plate 425 to move toward the side closer to the fixed seat 421, the push plate 425 applies a compressive force to the second elastic member 423, causing the second elastic member 423 to compress. At the same time, the second elastic member 423 transmits the compressive force to the tensile pressure sensor 422, so that the tensile pressure sensor 422 detects the magnitude of the compressive force. Since the tensile pressure sensor 422 is fixed to the fixed seat 421, and the fixed seat 421 is fixedly connected to the connecting member 41 through the slide rod 424, the compressive force is converted into a tensile force of the fixed seat 421 on the connecting member 41. This compressive force is also the force applied by the third driving device 43 to the connecting member 41. Since the second elastic element 423 only needs to be compressed during testing, its two ends can be abutted against the push plate 425 and the tension / pressure sensor 422 respectively (of course, the two ends of the second elastic element 423 can also be fixedly connected to the push plate 425 and the tension / pressure sensor 422 respectively).
[0059] In this embodiment, the tension and pressure sensor 422 can detect both pressure and tension (the tension and pressure sensor 422 can specifically be a Spartacus SBT series tension and pressure sensor, such as the Spartacus SBT641C tension and pressure sensor), so the push-pull force testing component 4 can also be used for thrust testing. During the thrust test, the third drive device 43 drives the push plate 425 to move away from the fixed base 421. The push plate 425 applies a pulling force to the second elastic member 423 (it should be noted that at this time, the two ends of the second elastic member 423 need to be fixedly connected to the push plate 425 and the tension pressure sensor 422 respectively, and the initial position of the push plate 425 needs to be spaced apart from the mounting base 412, that is, the two cannot touch in the initial state), causing the second elastic member 423 to be stretched. The second elastic member 423 transmits the pulling force to the tension pressure sensor 422, so that the tension pressure sensor 422 detects the magnitude of the pulling force. Since the tension pressure sensor 422 is fixed to the fixed base 421, and the fixed base 421 is fixedly connected to the connecting member 41 through the slide rod 424, the pulling force is converted into a thrust force of the fixed base 421 on the connecting member 41. This pulling force is also the force applied by the third drive device 43 to the connecting member 41.
[0060] Of course, in other embodiments, if only tensile or thrust testing is required, the tensile or pressure sensor 422 can be replaced with a simple tensile sensor or a simple pressure sensor.
[0061] like Figures 6 to 10As shown, in one embodiment, a sliding bearing 427 is sleeved on the slide rod 424, and a push plate 425 is sleeved and fixed outside the sliding bearing 427. The sliding bearing 427 can slide along the slide rod 424, thereby reducing the motion wear between the push plate 425 and the slide rod 424 and improving the smoothness of the motion.
[0062] like Figures 6 to 10 As shown, in one embodiment, there are multiple sensing components 420 and multiple connecting components 41. Each sensing component 420 is correspondingly arranged with one of the multiple connecting components 41, meaning each connecting component 41 is connected to one of the multiple products 5 to be tested. The tension / pressure sensors 422 in the multiple sensing components 420 can detect the push / pull forces acting on each of the multiple connecting components 41, thereby enabling simultaneous push / pull force testing on multiple products 5 to be tested. In this embodiment, there is only one push plate 425, meaning one push plate 425 corresponds to multiple sensing components 420. Of course, in other embodiments, multiple push plates 425 can also be provided, each corresponding to one of the multiple sensing components 420.
[0063] like Figures 6 to 10 As shown, in one embodiment, the push-pull force testing assembly 4 also includes a linear guide module 46. The linear guide module 46 includes a slide rail 461 and a slider 462 disposed on the slide rail 461. The extension direction of the slide rail 461 is parallel to the extension direction of the slide rod 424. The slider 462 is connected to the push plate 425, and the slider 462 and the push plate 425 can slide together along the slide rail 461. By setting the linear guide module 46, it can support the connecting component 41 and the push-pull force sensing component 42, and at the same time guide and limit the movement of the push plate 425, ensuring its movement accuracy and stability.
[0064] Specifically, in this embodiment, the linear guide module 46 is disposed on the base plate 45, and the slide rail 461 of the linear guide module 46 is fixed to the base plate 45. An adapter plate 426 is fixedly provided on the slider 462 of the linear guide module 46, and the push plate 425 is fixedly connected to the adapter plate 426. The third driving device 43 is fixedly connected to the adapter plate 426, that is, the third driving device 43 is connected to the push plate 425 through the adapter plate 426.
[0065] In one implementation, the push-pull force testing mechanism also includes a display device (not shown, such as a screen), with the tension / pressure sensor 422 electrically connected to the display device to display the push-pull force detected by the tension / pressure sensor 422 on the display device. Simultaneously, the push-pull force testing mechanism also includes an alarm device (not shown, such as an audible and visual alarm), which is electrically connected to the tension / pressure sensor 422 to issue an alarm message in case of test abnormalities (of course, an additional alarm device may not be required, and the alarm message can be displayed using the display device).
[0066] The working steps of this push-pull force testing mechanism are as follows:
[0067] In the initial state, the first drive device 23 drives the positioning component 22 to move downward, the second drive device 32 drives the movable pressure plate 31 to move upward, and the fourth drive device 44 drives the connecting component 41 to move upward, so as to avoid interference between each component and the product under test 5.
[0068] At the start of the test, the pulling mechanism pulls the product 5 (product strip) to be tested from the upper section onto the support base 21. After the product 5 is in place, the first drive device 23 drives the positioning component 22 to move upward, so that the positioning component 22 contacts the product 5 to be tested, thereby positioning the product 5. The second drive device 32 drives the movable pressure plate 31 to move downward, so that the movable pressure plate 31 presses and fixes the product 5 to be tested. The fourth drive device 44 drives the connecting component 41 to move downward, so that the connecting pin 411 is inserted into the test hole 51 on the product 5 to be tested. The third drive device 43 applies a pushing or pulling force to the connecting component 41. This pushing or pulling force is detected by the tension pressure sensor 422 and displayed in real time through the display device. During the test, if an abnormality in the pushing or pulling force is detected, the push-pull force testing mechanism will issue an alarm to detect the problem in time; if there is no abnormality, the push-pull force testing mechanism will continue to work.
[0069] After the test, the third drive device 43 releases the push or pull force applied to the connecting component 41, the fourth drive device 44 drives the connecting component 41 to move upward, the second drive device 32 drives the movable pressure plate 31 to move upward, and the first drive device 23 drives the positioning component 22 to move downward, so as to disconnect each component from the product 5 to be tested; the pulling mechanism then pulls the tested product from the push-pull force test section to the next section for the next set of products to be tested.
[0070] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A push-pull force testing mechanism, characterized in that, include: Base (1); Product positioning component (2) is disposed on the base (1); The product positioning component (2) includes a support base (21), a positioning component (22), and a first driving device (23). The support base (21) is used to support the product to be tested (5). The positioning component (22) is located below the support base (21) and is used to position the product to be tested (5). The first driving device (23) is connected to the positioning component (22) and is used to drive the positioning component (22) to move up and down so that the positioning component (22) is connected to or separated from the product to be tested (5). A pressing component (3) is disposed on the base (1); the pressing component (3) includes a movable pressure plate (31) and a second driving device (32). The movable pressure plate (31) is used to press and fix the product to be tested (5); the second driving device (32) is connected to the movable pressure plate (31) and is used to drive the movable pressure plate (31) to move up and down so that the movable pressure plate (31) abuts or separates from the product to be tested (5); A push-pull force testing assembly (4) is disposed on the base (1); the push-pull force testing assembly (4) includes a connecting component (41), a push-pull force sensing component (42), and a third driving device (43). The connecting component (41) is used to connect with the product to be tested (5); the push-pull force sensing component (42) is connected between the connecting component (41) and the third driving device (43). The third driving device (43) is used to apply a push or pull force to the connecting component (41), and the push-pull force sensing component (42) is used to detect the magnitude of the force applied by the third driving device (43) to the connecting component (41).
2. The push-pull force testing mechanism as described in claim 1, characterized in that, The connecting component (41) includes a connecting pin (411) for insertion into a test hole (51) on the product to be tested (5); the third driving device (43) is used to apply a pushing or pulling force to the connecting pin (411) in the horizontal direction.
3. The push-pull force testing mechanism as described in claim 2, characterized in that, The push-pull force testing assembly (4) also includes a fourth driving device (44), which is used to drive the connecting pin (411) to move up and down so that the connecting pin (411) can be inserted into or disengaged from the test hole (51) on the product to be tested (5).
4. The push-pull force testing mechanism as described in claim 3, characterized in that, The push-pull force testing assembly (4) also includes a base plate (45), and the third driving device (43) is disposed on the base plate (45); the fourth driving device (44) is connected to the base plate (45), and the fourth driving device (44) is used to drive the base plate (45) to move up and down, so as to drive the connecting component (41), the push-pull force sensing component (42) and the third driving device (43) to move up and down as a whole.
5. The push-pull force testing mechanism as described in claim 2, characterized in that, The connecting component (41) further includes a mounting base (412) and a first elastic element (413). The push-pull force sensing component (42) is connected to the mounting base (412). The connecting pin (411) is disposed on the mounting base (412) and the connecting pin (411) is capable of moving up and down relative to the mounting base (412). The first elastic element (413) is capable of applying elastic force to the connecting pin (411) along the insertion direction (S) between the connecting pin (411) and the test hole (51).
6. The push-pull force testing mechanism as described in claim 1, characterized in that, The push-pull force sensing component (42) includes a sensing assembly (420) and a push plate (425). The sensing assembly (420) includes a fixed base (421), a tension / pressure sensor (422), and a second elastic element (423). The tension / pressure sensor (422) is disposed on the fixed base (421). The fixed base (421) is fixedly connected to the connecting component (41) through a slide rod (424). The push plate (425) is sleeved on the slide rod (424) and can slide along the slide rod (424). The two ends of the second elastic element (423) are respectively connected to the push plate (425) and the tension / pressure sensor (422). The third driving device (43) is connected to the push plate (425) and is used to drive the push plate (425) to slide along the slide rod (424).
7. The push-pull force testing mechanism as described in claim 6, characterized in that, The number of the sensing components (420) and the connecting components (41) are both multiple, and the multiple sensing components (420) are respectively arranged in a one-to-one correspondence with the multiple connecting components (41).
8. The push-pull force testing mechanism as described in claim 6, characterized in that, The push-pull force testing assembly (4) further includes a linear guide module (46), which includes a slide rail (461) and a slider (462) disposed on the slide rail (461). The extension direction of the slide rail (461) is parallel to the extension direction of the slide rod (424). The slider (462) is connected to the push plate (425), and the slider (462) and the push plate (425) can slide together along the slide rail (461).
9. The push-pull force testing mechanism as described in claim 1, characterized in that, The positioning component (22) includes a support plate (223) and a positioning platform (221) and a positioning pin (222) disposed on the support plate (223). The first driving device (23) is connected to the support plate (223). During positioning, the positioning platform (221) can abut against the product to be tested (5), and the positioning pin (222) can be inserted into the positioning hole (52) on the product to be tested (5).
10. The push-pull force testing mechanism as described in any one of claims 1-9, characterized in that, The support base (21) is provided with a limiting groove (210), and the side of the product to be tested (5) is located in the limiting groove (210). Before the test starts and after the test ends, the product to be tested (5) can move horizontally on the support base (21), and the limiting groove (210) is used to limit the product to be tested (5) when it moves horizontally.