Device and method for detecting performance of automobile high-pressure casting mold

Abstract

The invention belongs to the technical field of detection equipment, and particularly relates to an automobile high-pressure casting mold performance detection device and method, and the device comprises a pedestal which is fixedly connected with a fixed frame; the arc-shaped guide rail is fixedly connected below the fixing frame; the detection assembly is connected to the arc-shaped guide rail in a sliding mode, and the detection assembly detects the performance of the casting mold through two testing methods of impacting and pressing; the clamp table is fixedly connected to the base; the detection assembly comprises a sliding frame, a lifting seat is slidably connected to the sliding frame, a fixing rod is fixedly connected to the lifting seat, a pressing block is fixedly connected to the lower end of the fixing rod, and a pressure sensor is installed on the fixing rod; a vertical frame is fixedly connected to the sliding frame, and a liftable driving seat is connected to the vertical frame; according to the detection assembly, the driving seat and the lifting seat are arranged, so that the detection assembly can have two testing methods of impact and pressure application on the casting mold, and the testing result of the casting mold is more comprehensive and accurate.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, and in particular to a device and method for detecting performance of an automobile high-pressure casting mold. Background Art

[0002] Automobile casting molds need to have certain toughness and pressure resistance to ensure the stability of the overall structure of the car. The main automobile molds include automobile anti-collision beams, bumpers, beams and other structures. These components are important protective parts in the car. The automobile anti-collision beam can protect the components in the door from damage and minimize the impact of the collision on the body, especially the longitudinal beam of the body. The existing special aluminum materials and optimized design have reduced the weight of the anti-collision beam. On the premise of not reducing the impact resistance, reinforcing ribs are added, the energy absorption box structure and layout, and material selection are optimized, so that the anti-collision beam can be quickly deformed to absorb the impact energy during a collision; taking into account the rigidity and stability of the overall body structure.

[0003] The existing methods of testing anti-collision beams are mostly through three-point bending tests, which test the middle and both sides of the anti-collision beam. The existing testing equipment generally observes the bending resistance of the anti-collision beam by applying a constant pressure to the surface of the anti-collision beam. The test mode is relatively single, and in fact, most vehicle accidents are instantaneous collisions. Therefore, the test data of the single mode of the testing equipment cannot fully reflect the performance of the anti-collision beam. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a device and method for detecting the performance of an automobile high-pressure casting mold. The detection component can be used to perform impact tests and pressure tests on the casting mold, aiming to solve the problems in the background technology.

[0005] In order to achieve the above technical objectives, the specific technical scheme of the present invention is as follows: a performance detection device for automobile high-pressure casting molds proposed by the present invention comprises: a base, a fixing frame is fixedly connected to the base; an arc guide rail is fixedly connected below the fixing frame; a detection component is slidably connected to the arc guide rail, and the detection component detects the performance of the casting mold by two testing methods: impact and pressure; a fixture table is fixedly connected to the base, and the fixture table is used to clamp and fix the casting mold; the detection component comprises a sliding frame, the sliding frame is slidably connected to the arc guide rail, a lifting seat is slidably connected to the sliding frame, a fixing rod is fixedly connected to the lifting seat, a pressure block is fixedly connected to the lower end of the fixing rod, and a pressure sensor is installed on the fixing rod; a vertical frame is fixedly connected to the sliding frame, and a liftable driving seat is connected to the vertical frame for driving the lifting seat to rise and fall.

[0006] As a preferred technical solution of the present invention, a screw is fixedly connected to the vertical frame, and a screw sleeve is rotatably connected to the drive seat and is threadedly connected to the screw. When the screw sleeve rotates, it drives the drive seat to rise and fall. A driving motor is installed on the drive seat, and a driving gear is connected to the rotating shaft of the driving motor. A driven gear meshing with the driving gear is fixedly installed on the screw sleeve.

[0007] As a preferred technical solution of the present invention, a receiving groove is provided inside the lifting seat, a limit block capable of extending outside is connected to the receiving groove, a bracket is fixedly connected to the limit block, and a first elastic member is fixedly connected between the bracket and the inner wall of the receiving groove; and a rotating shaft is rotatably connected to the lifting seat, a rotating member capable of meshing with a driven gear is connected to the lower end of the rotating shaft, and an eccentric wheel is fixedly connected to the upper end of the rotating shaft extending into the receiving groove, and the eccentric wheel is used to drive the limit block to move, and the eccentric wheel is in contact with the bracket.

[0008] As a preferred technical solution of the present invention, the side surface of the driving seat is respectively provided with an upper limit groove and a lower limit groove cooperating with the limit block, and when the limit block is connected to the lower limit groove, the rotating member and the driven gear are in a meshing state.

[0009] As a preferred technical solution of the present invention, the rotating part includes an outer gear ring, a ratchet is rotatably connected inside the outer gear ring, the ratchet is fixedly connected to the rotating shaft, and a plurality of pawls are connected to the inner wall of the outer gear ring, and a second elastic part is fixedly connected between the pawls and the inner wall of the outer gear ring.

[0010] As a preferred technical solution of the present invention, a slide rod is fixedly connected to the slide frame, and a cylindrical spring is connected to the slide rod. The cylindrical spring applies a downward elastic force to the lifting seat.

[0011] As a preferred technical solution of the present invention, the arc-shaped guide rail is provided with an arc-shaped groove, and an arc-shaped rack is fixedly connected to the arc-shaped guide rail. A servo motor is installed on the sliding frame, and a driving gear meshing with the arc-shaped rack is fixedly connected to the servo motor shaft.

[0012] As a preferred technical solution of the present invention, the fixture table is provided with a slide groove along its length direction, a pair of sliders are slidably connected to the slide groove, a clamping block is fixedly connected to the slider for clamping the casting mold, and a pair of threaded rods are threadedly connected at both ends of the fixture table for driving the slider to move, and one end of the threaded rod is rotatably connected to the slider.

[0013] A method for detecting the performance of an automobile high pressure casting mold includes the following two detection methods: Impact test: The detection component moves to the specified position along the arc guide rail, and then the driving motor rotates forward to drive the driving seat to rise, and the driving seat drives the lifting seat to rise to the specified height. During the rising process, the limit block is connected to the lower limit groove, and the cylindrical spring is compressed; then the driving motor rotates in the reverse direction to drive the driven gear to reverse, and the eccentric wheel is driven to rotate through the rotating part, thereby driving the limit block to shrink into the lifting seat. The lifting seat drops rapidly under gravity and the elastic force of the cylindrical spring, driving the pressure block to impact the casting mold, and performing an impact test on the casting mold; Pressure test: adjust the height of the lifting seat so that the pressure block is pressed on the surface of the casting mold, then manually rotate the rotating part to insert the limit block into the upper limit slot, and then drive the motor to rotate in the opposite direction to apply downward pressure to the lifting seat, thereby driving the pressure block to press down the casting mold and perform a pressure test on the casting mold.

[0014] The beneficial effects of the present invention are: 1. The detection component of the present invention is provided with a driving seat and a lifting seat. The driving seat can drive the lifting seat to rise and fall, so that the detection component can have two testing methods of impacting and pressing the casting mold, thereby making the test result of the casting mold more comprehensive and accurate.

[0015] 2. The present invention is provided with an arc guide rail, and the detection component can be moved to a specified position on the arc guide rail, thereby being able to detect various positions of the casting mold, and the detection position is comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic structural diagram of a device for detecting performance of an automobile high-pressure casting mold.

[0017] Figure 2 This is a schematic structural diagram of the arc guide rail and detection assembly proposed in the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the detection component proposed by the present invention.

[0019] Figure 4 This is a front view schematic diagram of the detection component proposed by the present invention.

[0020] Figure 5 This is a schematic structural diagram of the drive seat proposed by the present invention.

[0021] Figure 6 This is a schematic diagram of the internal structure of the lifting seat proposed by the present invention.

[0022] Figure 7 This is a schematic structural diagram of the rotating part proposed in the present invention.

[0023] Figure 8 This is a schematic structural diagram of the fixture table proposed in the present invention.

[0024] In the figure: 1, base; 2, fixed frame; 3, arc guide rail; 31, arc rack; 32, arc groove; 4, detection assembly; 41, sliding frame; 42, driving seat; 421, screw sleeve; 422, driven gear; 423, driving motor; 424, driving gear; 425, upper limit groove; 426, lower limit groove; 43, lifting seat; 431, limit block; 432, rotating member; 4321, outer gear ring; 4322, ratchet; 4323 , pawl; 4324, second elastic member; 433, bracket; 434, first elastic member; 435, eccentric wheel; 436, accommodating groove; 437, rotating shaft; 44, vertical frame; 45, screw rod; 46, sliding rod; 47, cylindrical spring; 48, servo motor; 49, driving gear; 410, pressure block; 411, fixing rod; 412, pressure sensor; 5, fixture table; 51, threaded rod; 52, slider; 53, clamping block; 54, slide groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Embodiment: This embodiment discloses a device for detecting the performance of a high pressure casting die for an automobile. Figure 1-Figure 8 As shown, it includes: a base 1, on which a fixing frame 2 is fixedly connected, and the fixing frame 2 is an inverted U-shaped structure; an arc guide rail 3, fixedly connected below the fixing frame 2; a detection component 4, slidably connected to the arc guide rail 3, wherein the detection component 4 detects the performance of the casting mold by two testing methods, namely, impact and pressure; a fixture table 5, fixedly connected to the base 1, and the fixture table 5 is used to clamp and fix the casting mold, wherein the casting mold is an anti-collision component of an automobile, such as an anti-collision beam, and in this embodiment, the detection component 4 slides to a specified position on the arc guide rail 3, so that the compression and strength tests can be performed on various positions of the casting mold.

[0027] Preferably, the fixture table 5 is provided with a slide groove 54 along its length direction, and a pair of sliders 52 are slidably connected to the slide groove 54, and a clamping block 53 is fixedly connected to the slider 52 for clamping and fixing the casting mold. A limiting groove is provided on the clamping block 53, and a pair of threaded rods 51 are threadedly connected at both ends of the fixture table 5 for driving the slider 52 to move, and one end of the threaded rod 51 is rotatably connected to the slider 52; the slider 52 is driven to move by rotating the threaded rod 51, so that the clamping block 53 clamps and fixes the casting mold.

[0028] like Figure 2-Figure 4As shown, the detection component 4 includes a sliding frame 41, which is slidably connected to the arc guide rail 3, a lifting seat 43 is slidably connected to the sliding frame 41, and a sliding rod 46 is fixedly connected to the sliding frame 41, the lifting seat 43 is slidably connected to the sliding rod 46, and a cylindrical spring 47 is connected to the sliding rod 46, and the cylindrical spring 47 applies a downward elastic force to the lifting seat 43; a fixed rod 411 is fixedly connected to the lifting seat 43, and a pressure block 410 is fixedly connected to the lower end of the fixed rod 411, and the pressure block 410 can apply pressure or impact to the surface of the casting mold, and a pressure sensor 412 is installed on the fixed rod 411 for sensing the pressure on the casting mold; a vertical frame 44 is fixedly connected to the sliding frame 41, and the vertical frame 44 is arranged on one side of the sliding frame 41, and a liftable driving seat 42 is connected to the vertical frame 44 for driving the lifting seat 43 to move up and down.

[0029] Preferably, an arc groove 32 is provided on the arc guide rail 3, and an arc rack 31 is fixedly connected to the arc guide rail 3, a servo motor 48 is installed on the sliding frame 41, and a driving gear 49 meshing with the arc rack 31 is fixedly connected to the rotating shaft of the servo motor 48; the driving gear 49 is driven to rotate by the servo motor 48, thereby driving the entire detection assembly 4 to move on the arc guide rail 3, so that different positions of the casting mold can be tested.

[0030] like Figure 5 As shown, a screw rod 45 is fixedly connected to the vertical frame 44, and a screw rod sleeve 421 threadedly connected to the screw rod 45 is rotatably connected to the driving seat 42. The screw rod sleeve 421 can be rotatably connected to the driving seat 42 through a bearing. When the screw rod sleeve 421 rotates, it can drive the driving seat 42 to rise and fall, and a driving motor 423 is installed on the driving seat 42, and a driving gear 424 is connected to the rotating shaft of the driving motor 423. A driven gear 422 meshing with the driving gear 424 is fixedly installed on the screw rod sleeve 421; the driving gear 424 is driven to rotate by the driving motor 423, and the driving gear 424 drives the driven gear 422 to rotate, thereby driving the screw rod sleeve 421 to rotate, thereby realizing the function of driving the driving seat 42 to rise and fall; wherein, the side surfaces of the driving seat 42 are respectively provided with an upper limit groove 425 and a lower limit groove 426 that cooperate with the limit block 431.

[0031] like Figure 6As shown, a receiving groove 436 is provided inside the lifting seat 43, and a limit block 431 that can extend outward is connected to the receiving groove 436, and a bracket 433 is fixedly connected to the limit block 431, and a first elastic member 434 is fixedly connected between the bracket 433 and the inner wall of the receiving groove 436; and a rotating shaft 437 is rotatably connected to the lifting seat 43, and the lower end of the rotating shaft 437 is connected to a rotating member 432 that can mesh with the driven gear 422, and the upper end of the rotating shaft 437 extends into the receiving groove 436 and is fixedly connected to an eccentric wheel 435, and the eccentric wheel 435 is used to drive the limit block 431 to move, and the eccentric wheel 435 is in contact with the bracket 433; wherein, when the limit block 431 When connected to the lower limit groove 426, the rotating member 432 and the driven gear 422 are in a meshing state; when the limit block 431 is connected to the upper limit groove 425, the rotating member 432 and the driven gear 422 are not meshing. Through the cooperation of the driven gear 422 and the rotating member 432, the eccentric wheel 435 can be driven to rotate, thereby controlling the movement of the limit block 431. When the limit block 431 extends out of the lifting seat 43, the limit block 431 is connected to the upper limit groove 425 or the lower limit groove 426. At this time, when the driving seat 42 moves, it can drive the lifting seat 43 to move; when the limit block 431 is received in the accommodating groove 436, the lifting seat 43 is separated from the driving seat 42.

[0032] like Figure 7 As shown, the rotating member 432 includes an outer gear ring 4321, and a ratchet 4322 is rotatably connected inside the outer gear ring 4321. The ratchet 4322 is fixedly connected to the rotating shaft 437, and a plurality of ratchet pawls 4323 are connected to the inner wall of the outer gear ring 4321. A second elastic member 4324 is fixedly connected between the ratchet pawls 4323 and the inner wall of the outer gear ring 4321; when the driving motor 423 rotates forward, the driving seat 42 and the lifting seat 43 rise, and the driven gear 422 drives the outer gear ring 4321 to rotate counterclockwise. At this time, the outer gear ring 4321 does not drive the ratchet 4322 to rotate, so that the eccentric wheel 43 5 remains stationary, so that the limit block 431 is stably connected to the lower limit groove 426; when the driving motor 423 rotates in the reverse direction, the driven gear 422 drives the outer gear ring 4321 to rotate clockwise, the outer gear ring 4321 drives the ratchet 4322 to rotate, drives the eccentric wheel 435 to rotate, the eccentric wheel 435 drives the limit block 431 to contract, the limit block 431 is separated from the lower limit groove 426, the lifting seat 43 can quickly drive the pressing block 410 to descend and hit the surface of the casting mold, and after the pressing block 410 hits the casting mold, the lifting seat 43 will not be separated from the sliding rod 46.

[0033] This embodiment also discloses a method for detecting the performance of an automobile high pressure casting mold. Based on the above detection equipment, this embodiment includes the following two detection methods: Impact detection: The detection component 4 moves to the specified position along the arc guide rail 3, and then the driving motor 423 rotates forward to drive the driving seat 42 to rise, and the driving seat 42 drives the lifting seat 43 to rise to the specified height. During the rising process, the limit block 431 is connected to the lower limit groove 426, and the cylindrical spring 47 is compressed; then the driving motor 423 rotates in the reverse direction to drive the driven gear 422 to reverse, and drives the eccentric wheel 435 to rotate through the rotating member 432, thereby driving the limit block 431 to shrink into the lifting seat 43. The lifting seat 43 drops rapidly under gravity and the elastic force of the cylindrical spring 47, driving the pressing block 410 to impact the casting mold, and performing an impact test on the casting mold; Pressure test: adjust the height of the lifting seat 43 so that the pressure block 410 is pressed on the surface of the casting mold, and then manually rotate the rotating member 432 to insert the limit block 431 into the upper limit groove 425. At this time, the rotating member 432 does not engage with the driven gear 422, and then drive the motor 423 to rotate in the opposite direction to apply downward pressure to the lifting seat 43, thereby driving the pressure block 410 to press down the casting mold, and perform a pressure test on the casting mold.

[0034] This embodiment can realize two detection methods of pressure detection and impact detection on the casting mold through a single driving motor 423. It has a reasonable structure, solves the problem of single test mode of existing detection equipment, and provides more comprehensive and accurate test results for the casting mold.

[0035] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A performance detection device for automobile high pressure casting mold, characterized in that: include: A base (1), to which a fixing frame (2) is fixedly connected; An arc-shaped guide rail (3) fixedly connected below the fixing frame (2); A detection component (4) is slidably connected to the arc-shaped guide rail (3), and the detection component (4) detects the performance of the casting mold through two testing methods: impact and pressure; A fixture table (5) is fixedly connected to the base (1), and the fixture table (5) is used to clamp and fix the casting mold; The detection assembly (4) comprises a sliding frame (41), the sliding frame (41) is slidably connected to the arc-shaped guide rail (3), a lifting seat (43) is slidably connected to the sliding frame (41), a fixing rod (411) is fixedly connected to the lifting seat (43), a pressure block (410) is fixedly connected to the lower end of the fixing rod (411), and a pressure sensor (412) is installed on the fixing rod (411); The sliding frame (41) is fixedly connected to a vertical frame (44), and the vertical frame (44) is connected to a liftable driving seat (42) for driving the lifting seat (43) to move up and down; The vertical frame (44) is fixedly connected to a screw rod (45); a screw rod sleeve (421) threadedly connected to the screw rod (45) is rotatably connected to the driving seat (42); when the screw rod sleeve (421) rotates, it drives the driving seat (42) to rise and fall; a driving motor (423) is installed on the driving seat (42); a driving gear (424) is connected to the rotating shaft of the driving motor (423); and a driven gear (422) meshing with the driving gear (424) is fixedly installed on the screw rod sleeve (421); The lifting seat (43) is provided with a receiving groove (436) inside, a limiting block (431) capable of extending outside is connected inside the containing groove (436), a bracket (433) is fixedly connected to the limiting block (431), and a first elastic member (434) is fixedly connected between the bracket (433) and the inner wall of the containing groove (436); and a rotating shaft (437) is rotatably connected to the lifting seat (43), the lower end of the rotating shaft (437) is connected to a rotating member (432) capable of meshing with a driven gear (422), and the upper end of the rotating shaft (437) extends into the containing groove (436) and is fixedly connected to an eccentric wheel (435), the eccentric wheel (435) is used to drive the limiting block (431) to move, and the eccentric wheel (435) is in contact with the bracket (433).

2. The automobile high pressure casting mold performance detection device according to claim 1 is characterized in that: An upper limit groove (425) and a lower limit groove (426) that cooperate with the limit block (431) are respectively provided on the side surface of the driving seat (42), and when the limit block (431) is connected to the lower limit groove (426), the rotating member (432) and the driven gear (422) are in a meshing state.

3. The automobile high pressure casting mold performance detection device according to claim 2 is characterized in that: The rotating member (432) comprises an outer gear ring (4321), a ratchet (4322) is rotatably connected inside the outer gear ring (4321), the ratchet (4322) is fixedly connected to the rotating shaft (437), and a plurality of ratchet pawls (4323) are connected to the inner wall of the outer gear ring (4321), and a second elastic member (4324) is fixedly connected between the ratchet pawls (4323) and the inner wall of the outer gear ring (4321).

4. The automobile high pressure casting mold performance detection device according to claim 3 is characterized in that: The sliding frame (41) is fixedly connected to a sliding rod (46), and the sliding rod (46) is connected to a cylindrical spring (47), and the cylindrical spring (47) applies a downward elastic force to the lifting seat (43).

5. The automobile high pressure casting mold performance detection device according to claim 4 is characterized in that: The arc-shaped guide rail (3) is provided with an arc-shaped groove (32), and the arc-shaped rack (31) is fixedly connected to the arc-shaped guide rail (3). A servo motor (48) is installed on the sliding frame (41), and a driving gear (49) meshing with the arc-shaped rack (31) is fixedly connected to the rotating shaft of the servo motor (48).

6. The automobile high pressure casting mold performance detection device according to claim 5, characterized in that: The fixture table (5) is provided with a slide groove (54) along its length direction, a pair of sliders (52) are slidably connected to the slide groove (54), a clamping block (53) is fixedly connected to the slider (52) and is used to clamp the casting mold, and a pair of threaded rods (51) are threadedly connected at both ends of the fixture table (5) and are used to drive the slider (52) to move, and one end of the threaded rod (51) is rotatably connected to the slider (52).

7. A method for detecting the performance of an automobile high pressure casting mold, using the automobile high pressure casting mold performance detection device as claimed in claim 6, characterized in that: There are two detection methods: Impact detection: the detection component (4) moves to a specified position along the arc guide rail (3), and then the driving motor (423) rotates in the forward direction to drive the driving seat (42) to rise, and the driving seat (42) drives the lifting seat (43) to rise to a specified height. During the rising process, the limit block (431) is connected to the lower limit groove (426), and the cylindrical spring (47) is compressed; then the driving motor (423) rotates in the reverse direction to drive the driven gear (422) to reverse, and drives the eccentric wheel (435) to rotate through the rotating member (432), thereby driving the limit block (431) to shrink into the lifting seat (43), and the lifting seat (43) quickly descends under the gravity and the elastic force of the cylindrical spring (47), driving the pressure block (410) to impact the casting mold, and performing an impact test on the casting mold; Pressure test: The height of the lifting seat (43) is adjusted so that the pressing block (410) is pressed against the surface of the casting mold, and then the rotating member (432) is manually rotated to insert the limit block (431) into the upper limit slot (425), and then the motor (423) is driven to rotate in the opposite direction to apply downward pressure to the lifting seat (43), thereby driving the pressing block (410) to press down the casting mold, and performing a pressure test on the casting mold.

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