Mold strength detection equipment

Abstract

The invention belongs to the technical field of material detection, and discloses mold strength detection equipment which comprises two bases, supporting frames are fixedly mounted on the upper surfaces of the two bases, a supporting plate is fixedly mounted at the top ends of the two supporting frames, a connecting shell is fixedly mounted in the middle of the lower surface of the supporting plate, and a mounting shell is fixedly mounted at the bottom end of the connecting shell. A side shell is fixedly installed on the upper portion of the left side face of the connecting shell, and a telescopic rod is fixedly installed on the left side face of an inner cavity of the side shell. The first abutting block always makes contact with the leftmost point of the deformed arc-shaped protrusion of the mold, and the second abutting block makes contact with the cambered surface of the arc-shaped protrusion, so that the angle that the first abutting block drives the bent plate connected with the first abutting block to rotate is larger than the angle that the second abutting block drives the bent plate connected with the second abutting block; at the moment, the radian of the arc-shaped bulge can be obtained through the angle difference of the two bent plates on the adjacent angle plates, so that the problems that an existing mold inspection device is single in function and cannot quickly, effectively and comprehensively evaluate the comprehensive performance of the mold are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of material testing, and specifically relates to a mold strength detection device. Background Art

[0002] With the continuous development of the manufacturing industry, the quality of molds directly affects the accuracy and service life of the final products. Traditional mold detection equipment usually can only test certain aspects of the mold performance, such as hardness, toughness, etc. This not only leads to low detection efficiency but also increases production costs. Especially in the processing of molds with complex structures, the comprehensive performance indicators of the mold are crucial for ensuring product quality. However, the existing mold detection devices often have a single function and cannot comprehensively evaluate the comprehensive performance of the mold, such as the number of stamping times for the mold to maintain effective performance, the maximum stamping bearing capacity of the mold, and at the same time, it is also impossible to accurately evaluate the influence degree of the inner side wall surface deformation on the outer side wall surface deformation when the mold is stressed and deformed. Summary of the Invention

[0003] The purpose of the present invention is to provide a mold strength detection device to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A mold strength detection device includes two bases. On the upper surfaces of the two bases, a support frame is fixedly installed. At the tops of the two support frames, a support plate is fixedly installed. In the middle of the lower surface of the support plate, a connection shell is fixedly installed. At the bottom end of the connection shell, an installation shell is fixedly installed. On the upper part of the left side surface of the connection shell, a side shell is fixedly installed. On the left side surface of the inner cavity of the side shell, a telescopic rod is fixedly installed. Between the middle part of the inner cavity of the connection shell and the telescopic rod, a curved rod mechanism is provided. In the right side of the inner cavity of the installation shell, a movable seat is slidably sleeved. The curved rod mechanism is movably arranged with the movable seat. At the right end of the movable seat, a vertical plate is fixedly installed. At the bottom of the vertical plate, a pressing surface mechanism is fixedly installed. On the front and rear sides of the upper surface of the installation shell, angle plates are symmetrically and fixedly installed. On the right side of the installation shell, a measuring mechanism is provided;

[0005] The curved rod mechanism includes a sleeve rod. The middle part of the sleeve rod is movably sleeved at the bottom of the inner cavity of the connection shell. The upper part of the sleeve rod is slidably sleeved with an upper rod. The top of the upper rod is movably sleeved with the output end of the telescopic rod. The bottom of the sleeve rod is slidably sleeved with a lower rod. The bottom of the lower rod is movably sleeved with the left part of the movable seat.

[0006] Preferably, the pressing surface mechanism includes an outer pressing rod. The outer pressing rod is fixedly sleeved at the bottom of the vertical plate. At the right end of the outer pressing rod, a first limiting ring is fixedly installed. In the middle of the outer pressing rod, a middle pressing rod is threadedly connected. At the right end of the middle pressing rod, a second limiting ring is provided. In the middle of the middle pressing rod, an inner pressing rod is threadedly connected.

[0007] Preferably, the measuring mechanism includes a rotating shaft movably sleeved on the rear side of the mounting shell. Curved plates are fixedly installed at both the front and rear ends of the rotating shaft. Threaded seats are symmetrically and fixedly installed on the right sides of the front and rear surfaces of the mounting shell. Elastic members are fixedly installed at the bottoms of the left sides of the two threaded seats. The left ends of the two elastic members are fixedly connected to the right sides of the adjacent left curved plates. A threaded column is threadedly connected to the middle of the two threaded seats. A first abutting block is fixedly installed at the bottom of the front surface of the rear curved plate. A second abutting block is slidably sleeved on the rear surface of the front curved plate. The bottom end of the first abutting block is lower than the bottom end of the second abutting block. A threaded rod is threadedly connected between the curved plate and the second abutting block.

[0008] Preferably, the telescopic end of the telescopic rod faces to the right. The contact surface between the movable seat and the mounting shell is a smooth surface. The perpendicular bisector of the angle plate is marked with a degree of 0. The degrees marked on the angle plate increase equidistantly from the middle to the left and from the middle to the right.

[0009] Preferably, the distance from the rotation axis of the sleeve rod to the top end of the upper rod is greater than the distance from the rotation axis of the sleeve rod to the bottom end of the lower rod.

[0010] Preferably, when the curved plate is vertical, the right edge of the curved plate coincides with the perpendicular bisector of the angle plate. The distance from the top end of the curved plate to the rotating shaft is greater than the distance from the bottom end of the curved plate to the rotating shaft.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. By starting the telescopic rod in the present invention, the curved rod mechanism drives the surface pressing mechanism to move to the left through the movable seat and the vertical plate. At this time, the left end of the inner pressing rod squeezes the part of the mold in contact with it to bulge and deform to the left. At this time, the hardness of the mold is obtained through the extrusion force of the inner pressing rod on the mold, the ratio of the indentation depth to the contact area between the left end of the inner pressing rod and the mold. At the same time, the leftward movement of the first abutting block and the second abutting block is pushed by the leftward curved convexity of the mold deformed by the extrusion of the inner pressing rod. Since the height of the bottom end of the second abutting block is greater than the height of the bottom end of the first abutting block, the first abutting block always contacts the leftmost point of the curved convexity of the deformed mold, and the second abutting block contacts the arc surface of the convexity. This makes the angle of rotation of the curved plate connected to the first abutting block greater than the angle of the curved plate connected to the second abutting block. At this time, the radian of the convexity can be obtained through the angle difference between the two curved plates on the adjacent angle plates, so as to detect the toughness of the mold while detecting the hardness of the mold, and at the same time, the influence degree of the force deformation of the inner side wall surface of the mold on the deformation of its outer side wall can be obtained, so as to realize the subsequent reasonable increase or decrease of the thickness of the mold side wall, and improve the processing accuracy of the finished product of the complex structure mold.

[0013] 2. By rotating the outer pressure rod and the middle pressure rod, the left end faces of the outer pressure rod and the middle pressure rod are made to be in the same plane as the left end face of the inner pressure rod. Then, the telescopic rod is started repeatedly many times again. The telescopic end of the telescopic rod drives the surface pressing mechanism to frequently squeeze the side wall of the mold through the curved rod mechanism, the movable seat and the vertical plate until the side wall of the mold bends and pushes the measuring mechanism to start rotating, thereby obtaining the safest range of the force received by the mold during stamping. Then, the telescopic rod maintains the same power, and the surface pressing mechanism continuously impacts the side wall of the mold until the angle of rotation of the measuring mechanism no longer resets. At this time, the maximum number of stamping times within the effective life of the mold is obtained, thus overcoming the problems of the existing mold detection device having a single function and requiring a large number of different measuring devices for testing multiple performances of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall external structure of the present invention;

[0015] Figure 2 is a schematic diagram of the structure of the measuring mechanism of the present invention;

[0016] Figure 3 is a schematic diagram of the structure of the threaded rod of the present invention;

[0017] Figure 4 is a schematic diagram of the structure of the curved rod mechanism of the present invention;

[0018] Figure 5 is a schematic diagram of the structure of the surface pressing mechanism of the present invention.

[0019] In the figure: 1. Base; 2. Support frame; 3. Support plate; 4. Connection shell; 5. Installation shell; 6. Side shell; 7. Telescopic rod; 8. Curved rod mechanism; 801. Sleeve rod; 802. Upper rod; 803. Lower rod; 9. Movable seat; 10. Vertical plate; 11. Surface pressing mechanism; 1101. Outer pressure rod; 1102. Middle pressure rod; 1103. Inner pressure rod; 12. Angle plate; 13. Measuring mechanism; 1301. Rotating shaft; 1302. Curved plate; 1303. Threaded seat; 1304. Elastic member; 1305. Threaded column; 1306. First abutting block; 1307. Second abutting block; 1308. Threaded rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part 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 shall fall within the protection scope of the present invention.

[0021] As Figures 1 to 5As shown in the figure, an embodiment of the present invention provides a mold strength detection device, including two bases 1. A support frame 2 is fixedly installed on the upper surfaces of the two bases 1. A support plate 3 is fixedly installed at the tops of the two support frames 2. A connection shell 4 is fixedly installed in the middle of the lower surface of the support plate 3. An installation shell 5 is fixedly installed at the bottom of the connection shell 4. An upper part of the left side surface of the connection shell 4 is fixedly installed with a side shell 6. A telescopic rod 7 is fixedly installed on the left side surface of the inner cavity of the side shell 6. The telescopic end of the telescopic rod 7 faces to the right. Thus, when the telescopic end of the telescopic rod 7 extends to the right, the telescopic end of the telescopic rod 7 drives the surface pressing mechanism 11 through the movable seat 9 and the vertical plate 10 to strongly squeeze the side wall of the mold, overcoming the problem that the retraction force of the telescopic end of the telescopic rod 7 is small and it is not conducive to strongly squeezing the side wall of the mold. A curved rod mechanism 8 is arranged between the middle of the inner cavity of the connection shell 4 and the telescopic rod 7;

[0022] The right side of the inner cavity of the installation shell 5 is slidably sleeved with a movable seat 9. The contact surface between the movable seat 9 and the installation shell 5 is a smooth surface, thereby reducing the frictional resistance between the movable seat 9 and the installation shell 5, reducing the power consumption when the telescopic rod 7 drives the movable seat 9 to move through the curved rod mechanism 8, reducing the load of the telescopic rod 7, increasing the service life of the telescopic rod 7, and at the same time reducing the frictional loss between the installation shell 5 and the movable seat 9, increasing the service life of the installation shell 5 and the movable seat 9. The curved rod mechanism 8 is movably arranged with the movable seat 9. A vertical plate 10 is fixedly installed at the right end of the movable seat 9. A surface pressing mechanism 11 is fixedly installed at the bottom of the vertical plate 10. Angle plates 12 are symmetrically and fixedly installed on the front and rear sides of the upper surface of the installation shell 5. The mid-perpendicular of the angle plate 12 is marked with a degree of 0, and the degrees marked on the angle plate 12 increase equidistantly from the middle to the left and from the middle to the right. Thus, it is convenient to subsequently read the offset angle of the curved plate 1302 and calculate the degree difference between the two curved plates 1302, which is convenient to use and reduces reading and calculation errors. A measuring mechanism 13 is arranged on the right side of the installation shell 5.

[0023] As Figure 4 shown, the curved rod mechanism 8 includes a sleeve rod 801. The middle of the sleeve rod 801 is movably sleeved at the bottom of the inner cavity of the connection shell 4. The upper part of the sleeve rod 801 is slidably sleeved with an upper rod 802. The top of the upper rod 802 is movably sleeved with the output end of the telescopic rod 7. The bottom of the sleeve rod 801 is slidably sleeved with a lower rod 803. The bottom of the lower rod 803 is movably sleeved with the left part of the movable seat 9. The distance from the rotation axis of the sleeve rod 801 to the top of the upper rod 802 is greater than the distance from the rotation axis of the sleeve rod 801 to the bottom of the lower rod 803. Thus, according to the lever principle, a telescopic rod 7 with a small volume and low power consumption is adopted to provide a sufficiently large extrusion force for the surface pressing mechanism 11, reducing the procurement cost of the detection device. At the same time, the weight of the inspection device is reduced, which is convenient for transportation and use.

[0024] As Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown in the figure, the noodle pressing mechanism 11 includes an outer pressing rod 1101. The outer pressing rod 1101 is fixedly sleeved at the bottom of the vertical plate 10. A first limiting ring is fixedly installed at the right end of the outer pressing rod 1101. A middle pressing rod 1102 is threadedly connected to the middle of the outer pressing rod 1101. A second limiting ring is provided at the right end of the middle pressing rod 1102. An inner pressing rod 1103 is threadedly connected to the middle of the middle pressing rod 1102. By providing the first limiting ring and the second limiting ring, when the rotating outer pressing rod 1101 and middle pressing rod 1102 move to the limiting positions of the first limiting ring and the second limiting ring to the left, the left end faces of the outer pressing rod 1101 and the middle pressing rod 1102 are in the same plane as the left end face of the inner pressing rod 1103, avoiding the situation where the outer pressing rod 1101, the middle pressing rod 1102 and the inner pressing rod 1103 cannot effectively contact the side wall of the mold at the same time.

[0025] As Figures 1 to 4 As shown in the figure, the measuring mechanism 13 includes a rotating shaft 1301. The rotating shaft 1301 is movably sleeved at the rear side of the mounting shell 5. Curved plates 1302 are fixedly installed at the front and rear ends of the rotating shaft 1301. When the curved plates 1302 are perpendicular, the right edge of the curved plate 1302 coincides with the perpendicular bisector of the angle plate 12. Thus, the angle of rotation of the curved plate 1302 can be judged by the angle between the right edge of the curved plate 1302 and the perpendicular bisector of the angle plate 12 subsequently. The distance from the top end of the curved plate 1302 to the rotating shaft 1301 is greater than the distance from the bottom end of the curved plate 1302 to the rotating shaft 1301. Thus, the moving distances of the first abutting block 1306 and the second abutting block 1307 are amplified, improving the detection accuracy. Threaded seats 1303 are symmetrically and fixedly installed on the right sides of the front and rear surfaces of the mounting shell 5. Elastic members 1304 are fixedly installed at the bottoms of the left side surfaces of the two threaded seats 1303. The left ends of the two elastic members 1304 are fixedly connected to the right side surfaces of the adjacent left curved plates 1302. A threaded column 1305 is threadedly connected to the middle of the two threaded seats 1303. A first abutting block 1306 is fixedly installed at the bottom of the front surface of the rear curved plate 1302. A second abutting block 1307 is slidably sleeved on the rear side surface of the front curved plate 1302. The bottom end of the first abutting block 1306 is lower than the bottom end of the second abutting block 1307. A threaded rod 1308 is threadedly connected between the curved plate 1302 and the second abutting block 1307.

[0026] Working principle:

[0027] When the present invention is in use, first check the device to move any side wall of the mold to the middle of the first abutting block 1306, the threaded rod 1308 and the noodle pressing mechanism 11, and then check the device to the right. At this time, the side wall of the mold reversely pushes the first abutting block 1306 and the second abutting block 1307 to move to the left. The first abutting block 1306 and the second abutting block 1307 respectively drive the connecting curved plates 1302 to rotate clockwise along the axis of the rotating shaft 1301, so that the right edge of the rotating shaft 1301 coincides with the 0-degree perpendicular line in the middle of the angle plate 12 on the same side. At this time, the elastic member 1304 makes the right side surfaces of the first abutting block 1306 and the second abutting block 1307 always contact with the side wall of the mold by pulling the curved plate 1302. Then rotate the threaded rod 1308, and the threaded rod 1308 pushes the second abutting block 1307 to slide upward, so that the height of the bottom end of the second abutting block 1307 is greater than the height of the bottom end of the first abutting block 1306. Then start the telescopic rod 7, and the telescopic end of the telescopic rod 7 pushes the curved rod mechanism 8 to rotate clockwise. The curved rod mechanism 8 drives the movable seat 9 to move to the left. The movable seat 9 drives the vertical plate 10 to move to the left first, and the vertical plate 10 drives the noodle pressing mechanism 11 to move to the left;

[0028] The left end of the inner pressure rod 1103 squeezes the part of the mold in contact with it to bulge and deform to the left. At this time, the hardness of the mold is obtained by the ratio of the extrusion force of the inner pressure rod 1103 on the mold, the indentation depth and the contact area between the left end of the inner pressure rod 1103 and the mold. At the same time, the leftward movement of the first abutting block 1306 and the second abutting block 1307 is pushed by the leftward convex arc of the mold deformed by the extrusion of the inner pressure rod 1103. Since the height of the bottom end of the second abutting block 1307 is greater than the height of the bottom end of the first abutting block 1306, the first abutting block 1306 always contacts the leftmost point of the deformed arc of the mold, and the second abutting block 1307 contacts the arc surface of the arc convexity, so that the angle of rotation of the curved plate 1302 connected to the first abutting block 1306 is greater than the angle of the curved plate 1302 connected to the second abutting block 1307 driven by the second abutting block 1307. At this time, the radian of the arc convexity can be obtained by the angle difference between the two curved plates 1302 on the adjacent angle plates 12, so as to realize the detection of the toughness of the mold while detecting the hardness of the mold, and at the same time, the influence degree of the force deformation of the inner side wall surface of the mold on the deformation of its outer side wall can be obtained, so as to realize the subsequent reasonable increase or decrease of the thickness of the mold side wall and improve the precision of the processed products of the complex structure mold;

[0029] In addition, when the present invention is used, the outer pressure rod 1101 and the middle pressure rod 1102 are rotated so that the left end faces of the outer pressure rod 1101 and the middle pressure rod 1102 are in the same plane as the left end face of the inner pressure rod 1103. Then, the telescopic rod 7 is repeatedly started many times again. The telescopic end of the telescopic rod 7 drives the noodle pressing mechanism 11 to frequently squeeze the side wall of the mold through the curved rod mechanism 8, the movable seat 9 and the vertical plate 10 until the side wall of the mold bends and pushes the measuring mechanism 13 to start rotating, so as to obtain the safest interval of the punching force of the mold. Then, the telescopic rod 7 maintains the same power, so that the noodle pressing mechanism 11 continuously impacts the side wall of the mold until the angle of rotation of the measuring mechanism 13 no longer resets. At this time, the maximum number of punches within the effective life of the mold is obtained, thereby overcoming the problems of the existing mold detection device, which has a single function and requires a large number of different measuring devices for testing multiple performances of the mold.

[0030] It should be noted that in this text, 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 any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold strength testing device, comprising two bases (1), the upper surfaces of the two bases (1) being fixedly mounted with support frames (2), the top ends of the two support frames (2) being fixedly mounted with support plates (3), characterized in that: A connecting shell (4) is fixedly installed in the middle of the lower surface of the support plate (3), a mounting shell (5) is fixedly installed at the bottom end of the connecting shell (4), a side shell (6) is fixedly installed on the upper part of the left side of the connecting shell (4), a telescopic rod (7) is fixedly installed on the left side of the inner cavity of the side shell (6), a bent rod mechanism (8) is provided between the middle of the inner cavity of the connecting shell (4) and the telescopic rod (7), a movable seat (9) is slidably sleeved on the right side of the inner cavity of the mounting shell (5), the bent rod mechanism (8) and the movable seat (9) are movably arranged, a vertical plate (10) is fixedly installed on the right end of the movable seat (9), a pressing mechanism (11) is fixedly installed on the bottom of the vertical plate (10), angle plates (12) are symmetrically fixedly installed on the front and rear sides of the upper surface of the mounting shell (5), and a measuring mechanism (13) is provided on the right side of the mounting shell (5); The bent rod mechanism (8) comprises a sleeve rod (801), the middle part of the sleeve rod (801) is movably sleeved on the bottom of the inner cavity of the connecting shell (4), the upper part of the sleeve rod (801) is slidably sleeved with an upper rod (802), the top of the upper rod (802) is movably sleeved with the output end of the telescopic rod (7), the bottom of the sleeve rod (801) is slidably sleeved with a lower rod (803), and the bottom of the lower rod (803) is movably sleeved with the left part of the movable seat (9).

2. A mold strength testing device according to claim 1, characterized in that: The pressing mechanism (11) comprises an outer pressing rod (1101), the outer pressing rod (1101) is fixedly sleeved on the bottom of the vertical plate (10), a first limiting ring is fixedly installed on the right end of the outer pressing rod (1101), a middle part of the outer pressing rod (1101) is threadedly connected to a middle pressing rod (1102), a second limiting ring is provided on the right end of the middle pressing rod (1102), and an inner pressing rod (1103) is threadedly connected to the middle part of the middle pressing rod (1102).

3. A mold strength testing device according to claim 2, characterized in that: The measuring mechanism (13) comprises a rotating shaft (1301), the rotating shaft (1301) is movably sleeved on the rear side of the mounting shell (5), curved plates (1302) are fixedly mounted on the front and rear ends of the rotating shaft (1301), threaded seats (1303) are symmetrically fixedly mounted on the right sides of the front and rear of the mounting shell (5), elastic members (1304) are fixedly mounted on the bottoms of the left sides of the two threaded seats (1303), and the left ends of the two elastic members (1304) are both attached to the curved plates (1302) adjacent to the left sides thereof. ), the middle parts of the two threaded seats (1303) are threadedly connected with a threaded column (1305), a first stop block (1306) is fixedly installed at the bottom of the front of the curved plate (1302) on the rear side, and a second stop block (1307) is slidably sleeved on the rear side of the curved plate (1302) on the front side, the bottom end of the first stop block (1306) is lower than the bottom end of the second stop block (1307), and a threaded rod (1308) is threadedly connected between the curved plate (1302) and the second stop block (1307).

4. A mold strength testing device according to claim 3, characterized in that: The telescopic end of the telescopic rod (7) faces the right side, the contact surface between the movable seat (9) and the mounting shell (5) is a smooth surface, the degree of the perpendicular bisector mark of the angle plate (12) is 0, and the degrees marked on the angle plate (12) increase equidistantly from the middle to the left side and from the middle to the right side.

5. A mold strength testing device according to claim 4, characterized in that: The distance from the rotating axis of the sleeve rod (801) to the top end of the upper rod (802) is greater than the distance from the rotating axis of the sleeve rod (801) to the bottom end of the lower rod (803).

6. A mold strength testing device according to claim 5, characterized in that: When the curved plate (1302) is vertical, the right edge of the curved plate (1302) coincides with the perpendicular bisector of the angle plate (12), and the distance from the top end of the curved plate (1302) to the rotating shaft (1301) is greater than the distance from the bottom end of the curved plate (1302) to the rotating shaft (1301).

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