CN117760882A - A hardness testing device for the production of injection mold parts - Google Patents

Abstract

The invention relates to the technical field of mold production, and particularly discloses a hardness detection device for producing injection mold parts, which comprises a bench and a detection head, and further comprises: a lifting rod; the lifting rod is fixed on the rack; the X-axis moving assembly and the Y-axis moving assembly are arranged at the top of the lifting rod, and the X-axis moving assembly is arranged on the X-axis moving assembly; the fixture is arranged on the X-axis moving assembly, the stop mechanism is triggered when the fixture stretches to contact with the detection head, the lifting rod stops stretching, the detection head and the part are positioned, meanwhile, the lifting rod drives the force storage mechanism to store force when stretching, when the next position is ready for detection, the force storage mechanism is released, the part automatically changes the position through the X-axis moving assembly and the Y-axis moving assembly, the part is more automatic when being detected, the operation is more convenient, the error can be reduced in the adjustment process, and the detection precision is improved.

Description

A hardness testing device for the production of injection mold parts

Technical field

The invention relates to the technical field of mold production, specifically a hardness detection device for the production of injection mold parts.

Background technique

Injection molding is to heat the material through an injection device and inject it into the cavity between the front template and the rear template. After cooling, the front template and the rear template are separated to form the required parts. Existing molds require templates and ejector pins before production. The hardness of the plate, bottom plate, mold foot, etc. is tested, usually using a hardness tester to determine the hardness and wear resistance of the mold material.

In the actual inspection process, in order to improve the accuracy of the inspection, the test is usually performed multiple times at different positions on the front and rear templates and then the average value is taken. Therefore, each time the position of the part is adjusted, the hardness tester needs to be manually adjusted. The height of the upper test bench is adjusted. After the adjustment, the position of the part on the test bench is changed and the test continues. Therefore, after the test of a part is completed, the user needs to adjust the test bench and the part multiple times, and when adjusting the part There are certain requirements. It is necessary to ensure that the parts are not separated from the test bench during adjustment, and after adjustment, it is also necessary to ensure that the measurement positions on both sides are not within the deformation zone of the test, otherwise the accuracy of the detection will be affected.

To this end, we propose a hardness testing device for the production of injection mold parts.

Contents of the invention

The purpose of the present invention is to provide a hardness testing device for injection mold parts production, so as to solve the problem proposed in the above background technology that the height of the test table and the position to be tested need to be manually adjusted multiple times during the testing process, errors are easily generated during the adjustment process, and the operation is inconvenient.

In order to achieve the above object, the present invention provides the following technical solution: a hardness testing device for the production of injection mold parts, including a bench and a testing head, and also includes:

Lifting rod; the lifting rod is fixed on the stand;

X-axis moving component and Y-axis moving component, the Y-axis moving component is installed on the top of the lifting rod, and the X-axis moving component is installed on the X-axis moving component;

Clamp, the clamp is installed on the X-axis moving component, and is used to clamp the parts to be tested;

Power storage mechanism and release mechanism. The power storage mechanism is installed on both sides of the detection head. One side of the power storage mechanism acts on the X-axis moving component, and the other side of the power storage mechanism acts on the Y-axis moving component. The two release mechanisms are installed Alternate releases at the ends of the accumulating mechanism;

Stop mechanism, the stop mechanism is installed on the side of the power storage mechanism, and the stop mechanism is used to control the elongation of the lifting rod.

Among them, the X-axis moving assembly and the Y-axis moving assembly include a movable plate, a chute and a roller. The roller in the X-axis moving assembly is fixed at the bottom of the fixture. The movable plate is set at the bottom of the roller. on the board.

Among them, the power accumulation mechanism includes a telescopic rod, a first push rod, a piston, a first piston cylinder, a first one-way valve, a second one-way valve, a connecting pipe and a pressure tank. The telescopic rod is installed on both sides of the detection head. A push rod is installed on the top of the telescopic rod, the piston is fixed on the top of the first push rod, the first piston cylinder is slidably installed on the outside of the piston, one end of the connecting pipe is fixed on the first piston cylinder, and the other end is fixed on the pressure tank. The pressure tank is fixed on the stand, the first one-way valve is installed on the first piston cylinder, and the second one-way valve is installed on the connecting pipe.

Among them, the telescopic rod includes a sleeve, an adjusting rod and a spring. The sleeve is fixed on both sides of the detection head. The adjusting rod is slidably installed inside the sleeve. The spring is located inside the sleeve and is connected to the sleeve and the adjusting rod at both ends. One end of the first push rod is located inside the spring.

The release mechanism includes a trigger tube, a control valve, a second piston cylinder and a second push rod. The trigger tube is installed on the pressure tank, the control valve is installed on the trigger tube, and the second piston cylinder is installed on the end of the trigger tube away from the pressure tank. , the second push rod is slidably installed inside the second piston barrel.

Among them, the stopping mechanism includes a connecting rod, a movable block and a button. The connecting rod is fixed on the stand, the movable block is fixed on the adjusting rod, and the button is installed on the bottom of the connecting rod.

Among them, an electromagnet is installed on the roller, and a movable rod is slidably installed at the bottom of the electromagnet. The movable rod is slidably installed on the roller, and a magnetic block is fixed at the bottom of the movable rod.

Among them, the clamp includes an adjusting screw, a fixed base, a clamping block and a fixed block. The fixed base is installed on the movable plate in the X-axis moving assembly. The fixed block is fixed on one end of the fixed base. The clamping block is slidably installed on the other side of the fixed base. At one end, the adjusting screw is rotatably mounted on the clamping block.

Among them, a limit rod is fixed on the platform, a limit hole is opened at the corner of the movable plate in the Y-axis moving assembly, and the limit rod is slidably installed in the limit hole.

The present invention at least has the following beneficial effects:

First, the lifting rod can automatically drive the parts to be inspected to expand and contract. When the expansion and contraction reaches the contact with the detection head, the stop mechanism is triggered, and the lifting rod stops extending to achieve the positioning of the detection head and the part. At the same time, when the lifting rod extends Drive the accumulator mechanism to accumulate force. When the next position is ready for inspection, the accumulator mechanism is released, allowing the parts to automatically change their positions through the X-axis moving assembly and Y-axis moving assembly, so that the parts are more accurate when inspecting Automation makes operation more convenient, while ensuring that errors are reduced during the adjustment process and improving detection accuracy.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a schematic diagram of the side structure of the present invention;

Figure 3 is a schematic structural diagram of the X-axis moving assembly and the Y-axis moving assembly of the present invention;

Figure 4 is a schematic diagram of the exploded structure of the X-axis moving assembly and the Y-axis moving assembly of the present invention;

Figure 5 is a schematic structural diagram of the detection head of the present invention;

Figure 6 is a schematic diagram of the power storage mechanism of the present invention;

Figure 7 is a schematic structural diagram of the telescopic rod of the present invention;

Figure 8 is a schematic diagram of the internal structure of the first piston cylinder of the present invention;

Figure 9 is a schematic structural diagram of the connection between the roller and the chute of the present invention.

In the picture: 1. Bench; 2. Detection head; 3. Lifting rod; 4. X-axis moving component; 5. Y-axis moving component; 6. Clamp; 7. Accumulation mechanism; 8. Release mechanism; 9. Stop Mechanism; 10. movable plate; 11. chute; 12. roller; 13. telescopic rod; 14. first push rod; 15. piston; 16. first piston cylinder; 17. first one-way valve; 18. 2. One-way valve; 19. Connecting pipe; 20. Pressure tank; 21. Sleeve; 22. Adjusting rod; 23. Spring; 24. Trigger tube; 25. Control valve; 26. Second piston cylinder; 27. Second Push rod; 28. Connecting rod; 29. Movable block; 30. Button; 31. Electromagnet; 32. Movable rod; 33. Magnetic block; 34. Adjusting screw; 35. Fixing seat; 36. Clamping block; 37. Fixed block; 38. Limiting rod; 39. Limiting hole.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Embodiment 1, please refer to Figures 1-9. The present invention provides a technical solution: a hardness testing device for the production of injection mold parts, including a bench 1 and a detection head 2. The detection head 2 is fixed on the top of the bench 1. , and a lifting rod 3 is fixedly installed on the platform 1. In this embodiment, the lifting rod 3 can be realized by an electric push rod, a hydraulic push rod or a pneumatic push rod. A Y-axis moving assembly 5 is installed on the top of the lifting rod 3. , and the X-axis moving assembly 4 is installed on the Y-axis moving assembly 5. The X-axis moving assembly 4 is equipped with a clamp 6 for clamping the part to be tested. When the part to be tested is fixed in the clamp 6, the clamp 6 6 can move on the horizontal plane through the X-axis moving component 4 and the Y-axis moving component 5.

Specifically, the clamp 6 is composed of a fixed base 35, a fixed block 37, an adjusting screw 34 and a clamping block 36. The fixed base 35 is installed on the X-axis moving assembly 4, and the fixed block 37 is fixed on the fixed base 35. One end of the clamping block 36 slides and installs the other end of the fixing base 35. At the same time, an adjusting screw 34 is installed and rotated on the clamping block 36. When clamping the part to be tested, place the part between the fixing block 37 and the clamp. Between the holding blocks 36, rotate the adjusting screw rod 34 to drive the holding block 36 and the fixed block 37 close to each other to achieve the fixation of the tested part to ensure the accuracy of the detection point during the clamping process.

The X-axis moving assembly 4 and the Y-axis moving assembly 5 are both composed of a movable plate 10, a roller 12 and a chute 11. The roller 12 in the X-axis moving assembly 4 is fixed at the bottom of the fixed seat 35, and the chute 11 Then it is set on the movable plate 10, and the clamp 6 can be installed in the chute 11 in the movable plate 10 through the roller 12 at the bottom. The X-axis movement of the clamp 6 is realized through the cooperation of the roller 12 and the chute 11. In the same way, The roller 12 in the Y-axis moving assembly 5 is fixed on the bottom of the movable plate 10 in the X-axis moving assembly 4, so that the X-axis moving assembly 4 can move in the Y-axis direction through the Y-axis moving assembly 5 to realize the inspection of the parts under test. Move in two directions to facilitate adjustment of the position of the part being tested.

There are power storage mechanisms 7 on both sides of the detection head 2, and a release mechanism 8 is installed at the end of each power storage mechanism 7. One of the two release mechanisms 8 acts on the X-axis moving assembly 4, and the other acts on the Y axis. On the axis moving assembly 5;

The force storage mechanism 7 includes a telescopic rod 13 fixed on both sides of the detection head 2, and the telescopic rod 13 includes a sleeve 21, a spring 23 and an adjusting rod 22. The sleeve 21 is fixed on both sides of the detecting head 2, and the adjusting rod 22. 22 is slidably installed inside the sleeve 21, and the spring 23 is fixed between the top of the adjusting rod 22 and the top of the sleeve 21. At the same time, a first push rod 14 is also installed on the top of the adjusting rod 22. The first push rod 14 and There is a sliding connection between the sleeves 21. When the adjusting rod 22 is squeezed, the first push rod 14 slides in the sleeve 21 and compresses the spring 23 at the same time;

A piston 15 is fixed on the top of the first push rod 14, and a first piston cylinder 16 is slidably installed on the outside of the piston 15. A connecting pipe 19 is installed on the top of the first piston cylinder 16, and a pressure connecting pipe 19 is installed on the end of the connecting pipe 19. Tank 20, at the same time, a first one-way valve 17 is installed on the first piston cylinder 16, and a second one-way valve 18 is installed on the connecting pipe 19;

Through the above technical solution, when the adjusting rod 22 is compressed, the first push rod 14 is driven to move upward, and the spring 23 is compressed at the same time. The first push rod 14 drives the piston 15 in the first piston barrel 16 during the upward movement. It moves upward to squeeze the air in the first piston cylinder 16. The pressure in the first piston cylinder 16 enters the pressure tank 20 for storage through the function of the connecting pipe 19, and the function of the second one-way valve 18 is It is the function of one-way air intake, so that the gas in the first piston cylinder 16 can enter the pressure tank 20 through the connecting pipe 19, but the gas in the pressure tank 20 cannot enter the inside of the first piston cylinder 16. When the adjusting rod 22 is reset, the elastic force of the spring 23 is released, and the first push rod 14 drives the piston 15 to move downward in the first piston barrel 16. At this time, the first one-way valve 17 can allow outside air to enter the first piston barrel. 16 to balance the air pressure, that is, the first one-way valve 17 can only take in air from the outside world but cannot exhaust air from the first piston barrel 16 to the outside world. Therefore, when testing the test block before testing the part to be tested, the pressure tank 20 A certain intensity of pressure can be stored inside.

The release mechanism 8 consists of a trigger pipe 24 fixed on the pressure tank 20, and a control valve 25 is fixedly installed on the trigger pipe 24. The opening of the control valve 25 can output the pressure in the pressure tank 20, and the trigger pipe 24 is The other end is connected to a second piston cylinder 26, and a second push rod 27 is slidably installed inside the second piston cylinder 26. One of the second push rods 27 is fixed on the fixed seat 35, and the other second push rod 27 is fixed on the X On the movable plate 10 in the axis moving assembly 4;

To sum up, when the parts to be tested are inspected, the lifting rod 3 drives the Y-axis moving assembly 5, the X-axis moving assembly 4, the clamp 6 and the parts to be tested in the clamp 6 to move upward. The part to be tested first comes into contact with the bottom of the adjusting rod 22. As the lifting rod 3 continues to move upward, the part to be tested and the adjusting rod 22 are squeezed, causing the adjusting rod 22 to move upward. The adjustment rod 22 moves upward. The first push rod 14 and the piston 15 are driven to slide in the first piston cylinder 16, and the gas in the first piston cylinder 16 is squeezed out into the pressure tank 20 through the connecting pipe 19 for storage, so that a certain amount of gas is stored in the pressure tank 20. pressure, while compressing spring 23,

After the detection, the control valve 25 on the trigger tube 24 is opened, and the pressure in the pressure tank 20 enters the second piston cylinder 26 through the trigger tube 24, so that the second push rod 27 in the second piston cylinder 26 moves. When the second push rod 27 moves, it drives the movable plate 10 to move in the X-axis or Y-axis direction, thereby realizing automatic adjustment of the position of the parts. The structure is simple and durable, and the cost and failure rate are low.

It should be noted that in this embodiment, the control valves 25 on the two trigger tubes 24 are opened alternately, that is, after the part under test is clamped in place, the clamping position is the corner of the part under test. When the first point is clamped, After detection, the control valve 25 on the X-axis moving assembly 4 is controlled to open, so that the tested part moves toward the X-axis. After the movement, the second point is detected. After the second point is detected, the Y-axis moving assembly 5 is controlled. The control valve 25 is opened, causing the workpiece to be tested to move on the Y-axis based on the first movement. Repeating the above actions can create multiple inclined detection points on the workpiece to be tested, thereby realizing multi-point detection and integrating multiple detection points. The hardness of the workpiece is calculated after averaging the data of each detection point, and the measured part remains stationary relative to the fixture 6 during the adjustment process, which can effectively avoid errors caused by manual adjustment, and when adjusting X When the axis moving component 4 and the Y-axis moving component 5 move, they can control the moving distance according to the opening time of the control valve 25. According to the experiment, the release amount and the closing distance are known. Based on the size of the deformation area of each part, the control The size of the movement distance makes the distance of each movement larger than the area of the deformation area, avoiding the overlap of deformation areas between adjacent detection points, and further improving the accuracy of detection.

What needs to be added is that a limit hole 39 is opened at the corner of the movable plate 10 in the Y-axis moving assembly 5, and a limit rod 38 is slidably installed inside the limit hole 39, and both ends of the limit rod 38 are fixed on On the platform 1, when the Y-axis moving assembly 5 moves up and down along with the lifting rod 3, the limiting rod 38 limits the movement trajectory so that it always maintains vertical movement.

During the upward movement of the lifting rod 3, it is necessary to ensure that the detection head 2 stops after contacting the part to be tested. Therefore, a stopping mechanism 9 is also provided next to the detection head 2, that is, a connecting rod 28 is fixed on the top of the stand 1. The connecting rod A button 30 is fixed at the bottom of 28. When the button 30 is pressed, the lifting rod 3 stops extending. At the same time, a movable block 29 is fixed on the adjacent adjusting rod 22. The movable block 29 is aligned with the button 30, and when the adjusting rod 22 telescopes In the process, it can not only accumulate force, but also drive the movable block 29 to move synchronously. When the button 30 is moved to the button 30, the button 30 is pressed, the lifting rod 3 stops telescopic, and at the same time, the measured part is in normal contact with the detection head 2, which can effectively This avoids the situation where the pressure between the measured part and the detection head 2 is too large or too small due to manual adjustment.

In the second embodiment, both the X-axis moving component 4 and the Y-axis moving component 5 move through the roller 12 and the chute 11. The purpose is to reduce friction and noise and maintain the adjustment distance. However, due to the ease between the roller 12 and the chute 11 Affected by external forces, the entire tested part moves. Therefore, an electromagnet 31 is installed on each roller 12. A movable rod 32 is slidably installed at the bottom of the electromagnet 31. The movable rod 32 is slidably installed on the roller 12. , a magnetic block 33 is fixed at the bottom of the movable rod 32;

Through the above technical solution, when the roller 12 stops moving, that is, the distance adjustment is completed. At this time, the electromagnet 31 is powered off, and the magnet 33 at the bottom of the movable rod 32 is attracted to the slide rail to limit the position of the roller 12. The parts under test are restricted to avoid the above situation. When the electromagnet 31 is powered off, the lifting rod 3 begins to extend. When it reaches the button 30, the lifting rod 3 stops extending and the detection head 2 performs detection. At the same time, the accumulating mechanism 7 is released, and the detection is continued after changing the adjustment distance until the detection of the tested part is completed. During the detection process, the tested part only needs to be clamped to complete multiple detections of the part, reducing the tediousness of repeated adjustments. , the operation is more convenient.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. A hardness testing device for the production of injection mold parts, including a bench (1) and a testing head (2), characterized by: also including: Lifting rod (3); the lifting rod (3) is fixed on the platform (1); X-axis moving assembly (4) and Y-axis moving assembly (5). The Y-axis moving assembly (5) is installed on the top of the lifting rod (3). The X-axis moving assembly (4) is installed on the X-axis moving assembly. (4) on; Clamp (6), the clamp (6) is installed on the X-axis moving assembly (4), and the clamp (6) is used to clamp the part to be tested; A force storage mechanism (7) and a release mechanism (8). The force storage mechanism (7) is installed on both sides of the detection head (2). The force storage mechanism (7) on one side acts on the X-axis moving assembly (4). , the power storage mechanism (7) on the other side acts on the Y-axis moving assembly (5), and the two release mechanisms (8) are installed at the ends of the power storage mechanism (7) to release alternately; Stop mechanism (9). The stop mechanism (9) is installed on the side of the power storage mechanism (7). The stop mechanism (9) is used to control the extension of the lifting rod (3). 2. The hardness testing device for the production of injection mold parts according to claim 1, characterized in that: the X-axis moving component (4) and the Y-axis moving component (5) both include a movable plate (10) and a chute. (11) and roller (12), the roller (12) in the X-axis moving assembly (4) is fixed at the bottom of the clamp (6), and the movable plate (10) is set at the bottom of the roller (12), so The roller (12) is mounted on the movable plate (10) through the chute (11). 3. The hardness testing device for injection mold parts production according to claim 2, characterized in that: the force storage mechanism (7) includes a telescopic rod (13), a first push rod (14), and a piston (15) , the first piston cylinder (16), the first one-way valve (17), the second one-way valve (18), the connecting pipe (19) and the pressure tank (20), the telescopic rod (13) is installed on the detection head (2) on both sides, the first push rod (14) is installed on the top of the telescopic rod (13), the piston (15) is fixed on the top of the first push rod (14), and the first piston barrel (16) It is slidably installed on the outside of the piston (15). One end of the connecting pipe (19) is fixed on the first piston barrel (16) and the other end is fixed on the pressure tank (20). The pressure tank (20) Fixed on the stand (1), the first one-way valve (17) is installed on the first piston cylinder (16), and the second one-way valve (18) is installed on the connecting pipe (19). 4. The hardness detection device for injection mold parts production according to claim 3, characterized in that: the telescopic rod (13) includes a sleeve (21), an adjusting rod (22) and a spring (23). The sleeve (21) is fixed on both sides of the detection head (2), the adjustment rod (22) is slidably installed inside the sleeve (21), and the spring (23) is located at both ends of the sleeve (21). Connected to the sleeve (21) and the adjusting rod (22) respectively, one end of the first push rod (14) is located inside the spring (23). 5. The hardness detection device for injection mold parts production according to claim 4, characterized in that: the release mechanism (8) includes a trigger tube (24), a control valve (25), and a second piston barrel (26) and the second push rod (27), the trigger tube (24) is installed on the pressure tank (20), the control valve (25) is installed on the trigger tube (24), the second piston barrel (26) Installed at the end of the trigger tube (24) away from the pressure tank (20), the second push rod (27) is slidably installed inside the second piston barrel (26). 6. The hardness testing device for injection mold parts production according to claim 5, characterized in that: the stopping mechanism (9) includes a connecting rod (28), a movable block (29) and a button (30), and the The connecting rod (28) is fixed on the stand (1), the movable block (29) is fixed on the adjusting rod (22), and the button (30) is installed on the bottom of the connecting rod (28). 7. The hardness testing device for the production of injection mold parts according to claim 6, characterized in that: an electromagnet (31) is installed on the roller (12), and the bottom of the electromagnet (31) is slidably installed. The movable rod (32) is slidably mounted on the roller (12), and a magnetic block (33) is fixed at the bottom of the movable rod (32). 8. The hardness testing device for the production of injection mold parts according to claim 1, characterized in that: the clamp (6) includes an adjusting screw (34), a fixed seat (35), a clamping block (36) and a fixed block (37), the fixed seat (35) is installed on the movable plate (10) in the X-axis moving assembly (4), the fixed block (37) is fixed on one end of the fixed seat (35), and the clamp The holding block (36) is slidably installed on the other end of the fixed seat (35), and the adjusting screw (34) is rotationally installed on the clamping block (36). 9. The hardness testing device for the production of injection mold parts according to claim 8, characterized in that: a limit rod (38) is fixed on the stand (1), and the Y-axis moving assembly (5) is movable. A limit hole (39) is provided at the corner of the plate (10), and the limit rod (38) is slidably installed in the limit hole (39).