A 3D printer mechanical property detection device

Abstract

The utility model discloses a kind of 3D printer mechanical property detection devices, it includes fixture, limiting component, switch force detection mechanism and cutting force detection mechanism;The fixture is used to install printer head, the limiting component is set to the side of the fixture to be used to print head pressure limiting;The switch force detection mechanism is set to the side of fixture, to detect the size of the force required for the fastening and opening of consumable compression handle of printer head;The cutting force detection mechanism is set to the other side of fixture relative to the switch force detection mechanism, to detect the consumable cutting force of printer head.This application has the advantages that mechanical structure is matched with sensor to realize the mechanical property detection of printer head, detection efficiency is high and detection precision is high.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to a mechanical property testing device for 3D printers. Background Technology

[0002] 3D printing, short for three-dimensional printing, is a technology that uses computer-generated three-dimensional models as a basis and software-controlled layer-by-layer manufacturing to create a finished product. It is a type of additive manufacturing technology. 3D printing technology is typically achieved using digital printing techniques. 3D printers can be used in any industry, with wide applications in medical, construction, automotive, aerospace, and education.

[0003] The performance of the printer head of a 3D printer directly affects the quality of 3D printing, and its various performance characteristics need to be tested. Currently, the performance testing of the printer head of a 3D printer mainly relies on manual labor, which is inefficient and the test results are greatly affected by human factors.

[0004] In view of this, the purpose of this utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a 3D printer mechanical performance testing device, which solves the problem that the performance testing of the existing printer head is carried out manually, resulting in low testing efficiency and low testing accuracy.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A mechanical performance testing device for a 3D printer includes a fixture, a limiting component, a switching force testing mechanism, and a cutting force testing mechanism. The fixture is used to install the printer head, and the limiting component is disposed on one side of the fixture to press and limit the printer head. The switching force detection mechanism is located on one side of the fixture and is used to detect the force required to fasten and open the consumable clamping handle of the printer head. The cutting force detection mechanism is located on the other side of the fixture opposite to the switching force detection mechanism, and is used to detect the consumable cutting force of the printer head.

[0007] In the above structure, the switching force detection mechanism includes a push rod, a lever, a first force sensor, and a first lateral movement assembly. The push rod and the lever are both mounted on the first lateral movement assembly. The first lateral movement assembly is used to drive the push rod and the lever to move closer to or away from the fixture along the X-axis direction. The push rod and the lever are both connected to the first force sensor. When the push rod is close to the fixture, it pushes the consumable clamping handle to lock; when the push rod is away from the fixture, it moves the consumable clamping handle to open.

[0008] In the above structure, the first lateral movement assembly includes a first lateral movement slide, a first lateral movement base plate, and a support plate. The first lateral movement base plate is mounted on the first lateral movement slide, and the first lateral movement slide is used to drive the first lateral movement base plate to move closer to or away from the fixture along the X-axis direction. The first force sensor is mounted on the first lateral movement base plate, and a first adapter plate is provided on the first force sensor. The push rod is fixedly disposed on the side of the first adapter plate facing the fixture. The support plate is mounted on the first adapter plate, and the lever is connected to the support plate and extends along the Y-axis direction.

[0009] In the above structure, the support plate has a Z-shaped structure, and a toggle cylinder is provided on the side of the support plate away from the first adapter plate. The output shaft of the toggle cylinder is provided with a connecting plate, and the lever is fixedly connected to the connecting plate. The toggle cylinder can drive the lever to move closer to or away from the fixture along the Y-axis direction.

[0010] In the above structure, the cutting force detection mechanism includes a second force sensor, a push block, and a second lateral movement assembly for driving the push block to move closer to or away from the fixture along the X-axis direction. The second lateral movement assembly is provided with a second lateral movement base plate. The second force sensor and the push block are disposed on the second lateral movement base plate, and the second force sensor is disposed on the side of the push block away from the fixture.

[0011] In the above structure, the cutting force detection mechanism further includes an empty material sensing component disposed below the second transverse component. The empty material sensing component includes an empty material sensor, a third transverse component, a mounting plate, and a support block. The mounting plate is connected to the third transverse component, and the third transverse component is used to drive the mounting plate to move closer to or away from the fixture along the X-axis direction. The support block is fixedly connected to the mounting plate, and the empty material sensor is disposed on the support block. The empty material sensor is used to detect whether the print head outputs consumables.

[0012] In the above structure, the fixture has a mounting groove, the shape and size of which are adapted to the shape of the printer head.

[0013] In the above structure, the limiting component includes a base, a wrench, a pressing head, and a mounting arm. The base is fixedly disposed on one side of the fixture. One end of the mounting arm is hinged to the base. The pressing head is disposed on the side of the mounting arm away from the base. One end of the wrench is hinged to the mounting arm, and a connecting block is hinged to the side of the wrench near the mounting arm. The connecting block is hinged to the base.

[0014] The above structure also includes a cabinet and a control unit. A mounting base plate is fixedly installed on the side wall of the cabinet. The fixture, limit component, switching force detection mechanism and cutting force detection mechanism are all installed on the mounting base plate. The switching force detection mechanism and cutting force detection mechanism are electrically connected to the control unit. A push-button switch is provided on the cabinet. The push-button switch is electrically connected to the control unit.

[0015] In the above structure, the cabinet is provided with a guide tube and an unwinding assembly for unwinding consumables. The unwinding assembly is located above the fixture, and the guide tube is located between the unwinding assembly and the fixture.

[0016] The beneficial effects of this utility model are: the 3D printer mechanical performance testing device of this utility model can automatically test the relevant mechanics of the printer head by using the switching force testing mechanism and the cutting force testing mechanism. Compared with manual testing, the testing accuracy is high, it is less affected by human factors, and the degree of automation is high, which effectively improves the testing efficiency. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the testing station of this utility model; Figure 3 This is a top view schematic diagram of the testing station structure of this utility model; Figure 4 This is a schematic diagram of the connection structure of the limiting component of this utility model.

[0019] Figure label: 1. Switching force detection mechanism; 11. Push rod; 12. Toggle lever; 13. First force sensor; 14. First transverse movement assembly; 141. First transverse movement slide; 142. First transverse movement base plate; 143. Support plate; 144. First adapter plate; 15. Actuating cylinder; 2. Cutting force detection mechanism; 21. Second force sensor; 22. Push block; 23. Second transverse movement assembly; 231. Second transverse movement slide; 232. Second transverse movement base plate; 233. Connecting column; 234. Second adapter plate; 24. Empty material sensing assembly; 241. Empty material sensor; 242. Third transverse movement assembly; 243. Mounting plate; 244. Support block; 3. Limiting component; 31. Wrench; 311. Socket; 312. Connecting block; 32. Base; 33. Pressing head; 34. Mounting arm; 4. Fixture; 41. Mounting slot; 5. Cabinet; 51. Mounting base plate; 52. Unwinding assembly; 53. Guide tube; 54. Consumables; 6. Printer head; 61. Consumable clamping handle. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described below.

[0021] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0022] Reference Figures 1 to 4 This utility model discloses a 3D printer mechanical performance testing device, which can be used to test the mechanical performance of the printer head 6 of a 3D printer to determine whether the printer head 6 meets the standards. The 3D printer mechanical performance testing device includes a fixture 4, a limiting component 3, a switching force testing mechanism 1, and a cutting force testing mechanism 2. The fixture 4 is used to mount the printer head 6 to be tested; the limiting component 3 is located on one side of the fixture 4 to press the printer head 6 to be tested, facilitating the testing operation; the switching force testing mechanism 1 is used to detect the magnitude of the force required to fasten and open the filament clamping handle 61 of the printer head 6; the cutting force testing mechanism 2 is used to detect the cutting force of the filament 54 of the printer head 6. The switching force testing mechanism 1 and the cutting force testing mechanism 2 are respectively located on opposite sides of the fixture 4.

[0023] The 3D printer mechanical performance testing device also includes a control unit (not shown in the figure). The control unit is electrically connected to the switching force detection mechanism 1 and the cutting force detection mechanism 2. The control unit is used to control the action of the detection mechanism and receive the test data and provide feedback on the test status to the tester through the digital display screen.

[0024] The printhead 6 is typically equipped with a consumable clamping handle 61. After the consumable 54 is introduced into the printhead 6, the consumable 54 is clamped in place by fastening the consumable clamping handle 61. The force required to fasten and open the consumable clamping handle 61 directly affects the ease of installing the consumable 54. Therefore, it is necessary to test the opening and closing force of the consumable clamping handle 61 to evaluate whether the relevant performance of the printhead 6 meets the standards. A switching force detection mechanism 1 is set up to simulate this process of fastening and opening the consumable clamping handle 61, and to detect and record the force required to fasten / open the consumable clamping handle 61.

[0025] Reference Figure 2 and Figure 3 The switching force detection mechanism 1 includes a push rod 11, a lever 12, a first force sensor 13, and a first lateral movement assembly 14. The first lateral movement assembly 14 drives the push rod 11 and the lever 12 to move closer to or further away from the print head 6 under test along the X-axis. The push rod 11 pushes the consumable clamping handle 61 to engage, and the lever 12 disengages the consumable clamping handle 61. Both the push rod 11 and the lever 12 are connected to the first force sensor 13, which detects the force applied by the push rod 11 pushing the consumable clamping handle 61 and the force applied by the lever 12 disengaging the consumable clamping handle 61. The X-axis direction is defined as the direction of movement from the left side to the right side of the fixture 4 along the horizontal direction; the Y-axis direction is defined as the direction perpendicular to the X-axis direction on the same horizontal plane.

[0026] Reference Figure 2 and Figure 3 Furthermore, the first transverse assembly 14 includes a first transverse slide 141, a first transverse base plate 142, and a support plate 143. The first transverse base plate 142 is mounted on the first transverse slide 141, and the first transverse slide 141 is used to drive the first transverse base plate 142 to move closer to or away from the fixture 4 along the X-axis direction. A first force sensor 13 is fixedly mounted on the first transverse base plate 142, and a first adapter plate 144 is fixedly mounted on the first force sensor 13. A push rod 11 is fixedly mounted on the first adapter plate 144 facing the fixture 4. A lever 12 is fixedly mounted on the support plate 143, and the lever 12 extends along the Y-axis direction. The support plate 143 is fixedly connected to the first adapter plate 144.

[0027] The first transverse slide 141 is a common linear slide, including linear guide rails, ball screws and drive motors, etc. Its detailed connection structure and driving principle will not be described in detail here.

[0028] In this embodiment, the support plate 143 has a Z-shaped structure, so that the lever 12 is located between the push rod 11 and the fixture 4. A toggle cylinder 15 is provided on the side of the support plate 143 away from the first adapter plate 144. The output shaft of the toggle cylinder 15 is provided with a connecting plate, and the lever 12 is fixedly installed on the connecting plate. The toggle cylinder 15 is used to drive the lever 12 to move along the Y-axis. In use, when the first transverse slide 141 drives the lever 12 to the toggle position, the piston rod of the toggle cylinder 15 extends, causing the lever 12 to approach the consumable clamping handle 61 along the Y-axis. By using the support plate 143 with a Z-shaped structure in conjunction with the toggle cylinder 15, the movement paths of the push rod 11 and the lever 12 can be staggered to avoid interference when the push rod 11 and the lever 12 move.

[0029] As the first transverse slide 141 drives the first transverse base plate 142 to approach the fixture 4 along the X-axis, the push rod 11 approaches the consumable clamping handle 61 along the X-axis until the push rod 11 abuts against the consumable clamping handle 61, thus pushing the consumable clamping handle 61 to lock. At this time, the lever 12 is located in front of the printer head 6 along the Y-axis. During the process of the push rod 11 pushing the consumable clamping handle 61 to lock, the first force sensor 13 records the force in real time and feeds the data information back to the control unit. Next, the piston rod of the actuating cylinder 15 extends, driving the lever 12 to approach the printer head 6 along the Y-axis. At the same time, the first transverse slide 141 drives the first transverse base plate 142 to move away from the fixture 4 along the X-axis, that is, the entire switching force detection mechanism 1 retracts. The lever 12 moves to the consumable clamping handle 61 under the drive of the actuating cylinder 15. During the retraction process, the lever 12 abuts against the consumable clamping handle 61 and moves the consumable clamping handle 61 until the consumable clamping handle 61 is opened. During the process of the lever 12 moving the consumable clamping handle 61 to open, the first force sensor 13 records the force in real time and feeds the data information back to the control unit.

[0030] By setting push rod 11 and lever 12 respectively, and reasonably setting the positions of push rod 11 and lever 12, the switching force detection mechanism 1 can test the force of fastening consumable clamping handle 61 and the force of opening consumable clamping handle 61 respectively in one back and forth movement, effectively simplifying the testing process and improving the testing efficiency.

[0031] The printhead 6 typically contains a cutter for cutting the consumable 54 and a cutting rod connected to the cutter. When replacing the consumable 54, it is necessary to cut the consumable 54 that has been introduced into the printhead 6. When the cutting trigger position of the printhead 6 is impacted, it will cause the cutting rod to rotate, which in turn will cause the cutter to cut the consumable 54 in a direction perpendicular to the consumable 54 inside the printhead 6. A cutting force detection mechanism 2 is set to simulate the impact of the printhead 6, so that the cutter cuts the consumable 54, and to detect and record how much impact force is required to cut the consumable 54.

[0032] Reference Figure 2 and Figure 3 The cutting force detection mechanism 2 includes a second force sensor 21, a push block 22, and a second lateral movement assembly 23. The second lateral movement assembly 23 is used to drive the push block 22 to move closer to or away from the fixture 4 along the X-axis direction. The second force sensor 21 is connected to the push block 22 to detect the force applied by the push block 22.

[0033] The second transverse movement assembly 23 includes a second transverse movement slide 231 and a second transverse movement base plate 232. The second transverse movement base plate 232 is mounted on the second transverse movement slide 231, and the second transverse movement slide 231 can drive the second transverse movement base plate 232 to move closer to or away from the fixture 4 along the X-axis direction. A connecting column 233 is fixedly provided on the second transverse movement base plate 232, and a second force sensor 21 is mounted on the connecting column 233. A second adapter plate 234 is fixedly connected to the side of the second force sensor 21 facing the fixture 4, and a push block 22 is fixedly mounted on the second adapter plate 234.

[0034] The second transverse slide 231 is also a common linear slide, including linear guide rails, ball screws and drive motors, etc. Its detailed connection structure and driving principle will not be described in detail here.

[0035] When the second transverse slide 231 drives the second transverse base plate 232 to approach the fixture 4 along the X-axis, the push block 22 approaches the printer head 6 along the X-axis until the push block 22 hits the cut-off trigger position of the printer head 6, triggering the printer head 6 to cut off the consumable 54. During the process of the push block 22 hitting the printer head 6 and causing the printer head 6 to cut off the consumable 54, the second force sensor 21 records the force in real time and feeds the data information back to the control unit.

[0036] Furthermore, the cutting force detection mechanism 2 also includes an empty material sensing component 24 for detecting whether the printer head 6 outputs consumable 54. The empty material sensing component 24 is located below the second transverse component 23. The empty material sensing component 24 includes an empty material sensor 241, a third transverse component 242, a mounting plate 243, and a support block 244. The mounting plate 243 is mounted on the third transverse component 242, which drives the mounting plate 243 to move closer to or away from the fixture 4 along the X-axis. The support block 244 is fixedly disposed on the side of the mounting plate 243 near the fixture 4. The empty material sensor 241 is fixedly connected to the support block 244. The empty material sensing component 24 is electrically connected to the control unit. The composition and structure of the third transverse component 242 are the same as those of the first transverse component 14, and will not be described in detail here.

[0037] In use, before the cutting force detection, the third lateral movement assembly 242 drives the mounting plate 243 to approach the fixture 4 along the X-axis, causing the empty material sensor 241 to approach the print head 6. When the empty material sensor 241 moves to below the print head 6, it detects whether the print head 6 is dispensing consumable 54. When the print head 6 is detected dispensing consumable 54, a signal is fed back to the control unit, which then activates the second lateral movement assembly 23 to perform the cutting force detection. When the print head 6 is detected not dispensing consumable 54, a signal is fed back to the control unit, and the second lateral movement assembly 23 is not activated.

[0038] By setting up the empty material sensing component 24, the state of the output consumable 54 of the printer head 6 is judged before the cutting force is detected, which effectively reduces the situation of empty material detection of cutting force and further ensures the accuracy and reliability of cutting force detection.

[0039] Reference Figure 1 and Figure 2 The fixture 4 is used to mount the printer head 6, and the limiting component 3 is used to press and limit the printer head 6. Specifically, the fixture 4 has a mounting groove 41, the shape and size of which are adapted to the shape of the printer head 6. The cut-off trigger position of the printer head 6 and the consumable clamping handle 61 are both located outside the mounting groove 41, that is, the switching force detection mechanism 1 and the cutting force detection mechanism 2 will not interfere with the fixture 4 when they are in operation. The mounting groove 41 limits the printer head 6, and the limiting component 3 further presses the printer head 6 to further reduce the possibility of detachment during the detection process.

[0040] Reference Figure 2 and Figure 4 The limiting component 3 includes a base 32, a wrench 31, a pressing head 33, and a mounting arm 34. The base 32 is fixedly mounted on one side of the fixture 4. One end of the mounting arm 34 is hinged to the base 32. The pressing head 33 is located on the side of the mounting arm 34 away from the base 32. One end of the wrench 31 is hinged to the mounting arm 34, and a connecting block 312 is hinged to the side of the wrench 31 closest to the mounting arm 34. The end of the connecting block 312 away from the wrench 31 is hinged to the base 32. By pressing the wrench 31, the pressing head 33 can be pressed against the print head 6. By lifting the wrench 31, the pressing head 33 can be disengaged from the print head 6. In actual installation, the pressing head 33 can be made of a soft material such as rubber to reduce the possibility of the pressing head 33 damaging the print head 6. In this embodiment, a sleeve 311 is provided at the end of the wrench 31 to facilitate its use.

[0041] Reference Figure 1Furthermore, the 3D printer mechanical performance testing device of this utility model also includes a cabinet 5, on which a mounting base plate 51 is fixedly installed. The fixture 4, the limiting component 3, the switching force detection mechanism 1, and the cutting force detection mechanism 2 are all installed on the mounting base plate 51. A push-button switch is provided on the cabinet 5. The push-button switch is electrically connected to the control unit and can control the operation of the device through the push-button switch.

[0042] In this embodiment, the cabinet 5 is provided with two testing stations, which are arranged vertically. Each testing station is equipped with components such as a fixture 4, a limiting component 3, a switching force detection mechanism 1, and a cutting force detection mechanism 2. This allows the two printing heads 6 to be tested separately using the two testing stations, which can effectively improve the testing efficiency.

[0043] Reference Figure 1 and Figure 2 Furthermore, the cabinet 5 is equipped with an unwinding assembly 52 and a guide tube 53. The unwinding assembly 52 is used to unwind consumables 54 to simulate the working state of the printer head 6. The guide tube 53 is fixedly disposed between the unwinding assembly 52 and the fixture 4 to guide the consumables 54. The consumables 54 output by the unwinding assembly 52 are then guided into the printer head 6 through the guide tube 53.

[0044] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A 3D printer mechanical property testing device, characterized in that: This includes fixtures, limit components, switching force detection mechanisms, and cutting force detection mechanisms; The fixture is used to install the printer head, and the limiting component is disposed on one side of the fixture to press and limit the printer head. The switching force detection mechanism is located on one side of the fixture and is used to detect the force required to fasten and open the consumable clamping handle of the printer head. The cutting force detection mechanism is located on the other side of the fixture opposite to the switching force detection mechanism, and is used to detect the consumable cutting force of the printer head.

2. The 3D printer mechanical property testing device according to claim 1, characterized in that: The switching force detection mechanism includes a push rod, a lever, a first force sensor, and a first lateral movement assembly. The push rod and the lever are both mounted on the first lateral movement assembly. The first lateral movement assembly is used to drive the push rod and the lever to move closer to or away from the fixture along the X-axis direction. The push rod and the lever are both connected to the first force sensor. When the push rod is close to the fixture, it pushes the consumable clamping handle to lock; when the push rod is away from the fixture, it moves the consumable clamping handle to open.

3. The 3D printer mechanical property testing device according to claim 2, characterized in that: The first lateral movement assembly includes a first lateral movement slide, a first lateral movement base plate, and a support plate. The first lateral movement base plate is mounted on the first lateral movement slide, and the first lateral movement slide is used to drive the first lateral movement base plate to move closer to or away from the fixture along the X-axis direction. The first force sensor is mounted on the first lateral movement base plate, and a first adapter plate is provided on the first force sensor. The push rod is fixedly disposed on the side of the first adapter plate facing the fixture. The support plate is mounted on the first adapter plate, and the lever is connected to the support plate and extends along the Y-axis direction.

4. The 3D printer mechanical property testing device according to claim 3, characterized in that: The support plate has a Z-shaped structure, and a toggle cylinder is provided on the side of the support plate away from the first adapter plate. The output shaft of the toggle cylinder is provided with a connecting plate, and the lever is fixedly connected to the connecting plate. The toggle cylinder can drive the lever to move closer to or away from the fixture along the Y-axis direction.

5. The 3D printer mechanical property testing device according to claim 1, characterized in that: The cutting force detection mechanism includes a second force sensor, a push block, and a second lateral movement assembly for driving the push block to move closer to or away from the fixture along the X-axis direction. The second lateral movement assembly is provided with a second lateral movement base plate. The second force sensor and the push block are disposed on the second lateral movement base plate, and the second force sensor is disposed on the side of the push block away from the fixture.

6. The 3D printer mechanical property testing device according to claim 5, characterized in that: The cutting force detection mechanism further includes an empty material sensing component disposed below the second transverse component. The empty material sensing component includes an empty material sensor, a third transverse component, a mounting plate, and a support block. The mounting plate is connected to the third transverse component. The third transverse component is used to drive the mounting plate to move closer to or further away from the fixture along the X-axis direction. The support block is fixedly connected to the mounting plate. The empty material sensor is disposed on the support block. The empty material sensor is used to detect whether the print head outputs consumables.

7. The 3D printer mechanical property testing device according to claim 1, characterized in that: The fixture has a mounting groove, the shape and size of which are adapted to the shape of the printer head.

8. The 3D printer mechanical property testing device according to claim 1, characterized in that: The limiting assembly includes a base, a wrench, a pressing head, and a mounting arm. The base is fixedly disposed on one side of the fixture. One end of the mounting arm is hinged to the base. The pressing head is disposed on the side of the mounting arm away from the base. One end of the wrench is hinged to the mounting arm, and a connecting block is hinged to the side of the wrench near the mounting arm. The connecting block is hinged to the base.

9. The 3D printer mechanical property testing device according to claim 1, characterized in that: It also includes a cabinet and a control unit. A mounting base plate is fixedly installed on the side wall of the cabinet. The fixture, limit component, switching force detection mechanism and cutting force detection mechanism are all installed on the mounting base plate. The switching force detection mechanism and cutting force detection mechanism are electrically connected to the control unit. A push-button switch is provided on the cabinet. The push-button switch is electrically connected to the control unit.

10. A 3D printer mechanical property testing device according to claim 9, characterized in that: The cabinet is equipped with a guide tube and an unwinding assembly for unwinding consumables. The unwinding assembly is located above the fixture, and the guide tube is located between the unwinding assembly and the fixture.

Images