CN111473938A

CN111473938A - Structural strength and durability detection device for automobile part research and development

Info

Publication number: CN111473938A
Application number: CN202010267165.0A
Authority: CN
Inventors: 方泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-07-31

Abstract

The invention discloses a device for detecting structural strength and durability of automobile parts for research and development, which comprises a base, a servo motor, a slow motor, a weight threaded column and a fixed lantern ring, wherein a vertical plate and an installation plate are fixedly welded on the base, a side bolt is fixedly welded on the side of a contact block, a clamping nut is arranged at the tail end of the side bolt, the side bolt penetrates through a side window, the weight threaded column is fixedly welded on the top of a base plate, a positioning nut is arranged on the weight threaded column, and a top column is fixedly welded on the top of the base plate. This automobile parts research and development uses structural strength and durability detection device adopts neotype structural design for this device can carry out stable location fixedly to not the bumper shock absorber lower carriage of equidimension, improves traditional free fall striking structure simultaneously, makes striking contact position can adjust the alignment, and change falling weight that can be convenient can also carry out stable striking in succession, accomplishes the detection of durability.

Description

Structural strength and durability detection device for automobile part research and development

Technical Field

The invention relates to the technical field of automobile part research and development, in particular to a structural strength and durability detection device for automobile part research and development.

Background

The automobile parts refer to all units forming the whole automobile part machining and products serving the automobile part machining, and the automobile parts are multiple in types and mainly comprise engine parts, transmission structure parts, brake mechanism parts, steering structure parts, walking structure parts and the like.

Along with the continuous production use of bumper shock absorber lower carriage, in order to improve product quality and the driving experience of car, the bumper shock absorber lower carriage of different materials, different size and different shapes also is constantly researching and developing, has found following problem in the research and development test process of reality:

1. the existing device for testing the structural strength of the lower bracket of the shock absorber only adopts simple free falling body impact, and a falling object cannot ensure that the falling object directly collides with the stressed position of the lower bracket of the shock absorber and cannot simulate the collision condition when the lower bracket of the shock absorber normally works;

2. and the weight of the falling body can not be changed conveniently, continuous and stable impact can not be carried out simultaneously, and the durability of the whole lower bracket of the shock absorber in the continuous impact process can not be detected.

Therefore, it is necessary to design a structural strength and durability detecting device for developing vehicle parts to solve the above problems.

Disclosure of Invention

The invention aims to provide a structural strength and durability detection device for automobile part research and development, and aims to solve the problems that a falling object cannot be guaranteed to be in direct collision with a stress position of a lower bracket of a shock absorber, the collision condition of the lower bracket of the shock absorber during normal work cannot be simulated, the weight of the falling object cannot be changed conveniently, continuous and stable collision cannot be carried out, and the durability of the whole lower bracket of the shock absorber during continuous collision cannot be detected.

In order to achieve the purpose, the invention provides the following technical scheme: a structural strength and durability detection device for automobile part research and development comprises a base, a servo motor, a slow motor, a weight threaded column and a fixed lantern ring, wherein a vertical plate and a mounting plate are welded and fixed on the base, the servo motor is installed and fixed on the base, a horizontal lead screw is welded and fixed at the output end of the servo motor, a middle gear is welded and fixed in the middle of the horizontal lead screw, the bottom of the middle gear is meshed and connected with the horizontal part of a front limiting plate, the bottom of the front limiting plate is installed in the base, the horizontal lead screw penetrates through a threaded hole, the threaded hole is formed in the bottom of a side limiting plate, the bottom end of the side limiting plate is attached to the inner wall of a movable groove, the movable groove is formed in the base, a fixing bolt is welded and fixed on the side of the top of the side limiting plate, an extrusion nut is installed at the tail end of the fixing bolt, the fixing bolt penetrates through a track window, mounting panel back is fixed with slow motor, and installs the output shaft on the slow motor to output shaft end welded fastening has the driving gear, driving gear and function board limit side interconnect simultaneously, function board bottom and the laminating of base up end, and function board top avris welded fastening has the base plate, and base plate bottom inboard is provided with contact block, contact block avris welded fastening has the side bolt, and the side bolt end installs clamping nut to the side bolt runs through the side window, and the side window is seted up at the base plate avris simultaneously, base plate top welded fastening has weight screw thread post, and installs set nut on the weight screw thread post, base plate top welded fastening has the fore-set, and the fore-set outside welded fastening has the side sand grip to the fore-set all runs through the fixed lantern ring with the side sand grip, and fixed lantern ring welded fastening is on the mounting panel simultaneously.

Preferably, the screw thread spiral direction of two sides of horizontal lead screw center is opposite, and the last symmetric distribution of horizontal lead screw has 2 side limiting plate to side limiting plate bottom and activity groove are sliding connection.

Preferably, the front limiting plate is connected with the base in a sliding mode, the side view of the front limiting plate is L-shaped, and the front limiting plate and the side limiting plate are both made of high-speed steel plates with rough surfaces.

Preferably, the side of the side limiting plate is attached to the mounting plate, the side limiting plate and the fixing bolt are vertically distributed, and the fixing bolt is in sliding connection with the track window.

Preferably, the driving gear is in meshed connection with the function board, and only half of the driving gear is provided with the tooth convex structure.

Preferably, a stabilizing plate is welded and fixed on the side of the functional plate, the front view shape of the stabilizing plate is a right triangle, the stabilizing plate is symmetrically distributed about the top pillar, and the functional plate and the base plate are vertically distributed.

Preferably, the contact blocks are symmetrically distributed about the base plate and are made of high-speed steel, side bolts are symmetrically distributed on the sides of the contact blocks, and the side bolts are in sliding connection with the side windows.

Preferably, the side convex strips are distributed at equal angles about the center of the top column, and the top column and the side convex strips are in sliding connection with the central hole of the fixed sleeve ring.

Compared with the prior art, the invention has the beneficial effects that: this automobile parts research and development uses structural strength and durability detection device, adopts neotype structural design for this device can carry out stable location fixedly to not the bumper shock absorber lower carriage of equidimension, improves traditional free fall striking structure simultaneously, makes striking contact position can adjust the alignment, and change falling weight that can be convenient can also carry out stable striking in succession, accomplishes the detection of durability:

1. the front limiting plate and the side limiting plate can be driven to move simultaneously through the rotation of the horizontal screw rod, and the lower bracket of the shock absorber is stably extruded and fixed by matching with the mounting plate, so that the stability of the lower bracket of the shock absorber in the subsequent detection process is ensured;

2. the collision structure arranged on the base plate is driven by the driving gear of the half-tooth structure to carry out continuous free-fall collision detection, and meanwhile, the position of the contact block can be conveniently adjusted and fixed, so that the contact block is conveniently aligned with the stressed part of the lower support of the shock absorber, and the collision result is ensured to be close to the real condition;

3. the fore-set and the side protruding strip follow the base plate and carry out ascending removal in the vertical direction, produce relative slip with the fixed lantern ring, can guarantee the stability of base plate whereabouts in-process, can carry out the convenient interpolation of weight through weight screw thread post simultaneously and fix.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic front sectional view of the present invention;

FIG. 3 is a schematic top view of a driving gear of the present invention;

FIG. 4 is a schematic top view of the retaining collar of the present invention;

FIG. 5 is a schematic side view of the cross-sectional structure of the present invention;

FIG. 6 is a schematic side sectional view of the side limiting plate according to the present invention.

In the figure: 1. a base; 2. a vertical plate; 3. mounting a plate; 4. a servo motor; 5. a horizontal screw rod; 6. a middle gear; 7. a front limiting plate; 8. a threaded hole; 9. a side limiting plate; 10. a movable groove; 11. fixing the bolt; 12. extruding the nut; 13. a track window; 14. a slow speed motor; 15. an output shaft; 16. a driving gear; 17. a function board; 1701. a stabilizing plate; 18. a substrate; 19. a contact block; 20. a side bolt; 21. clamping the nut; 22. a side window; 23. a weight threaded column; 24. positioning a nut; 25. a top pillar; 26. side convex strips; 27. and fixing the lantern ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a structural strength and durability detection device for automobile part research comprises a base 1, a vertical plate 2, a mounting plate 3, a servo motor 4, a horizontal screw rod 5, a middle gear 6, a front limit plate 7, a threaded hole 8, a side limit plate 9, a movable groove 10, a fixing bolt 11, an extrusion nut 12, a track window 13, a slow motor 14, an output shaft 15, a driving gear 16, a function plate 17, a stabilizing plate 1701, a base plate 18, a contact block 19, a side bolt 20, a clamping nut 21, a side window 22, a weight threaded column 23, a positioning nut 24, a top column 25, a side convex strip 26 and a fixing lantern ring 27, wherein the vertical plate 2 and the mounting plate 3 are fixedly welded on the base 1, the servo motor 4 is fixedly installed on the base 1, the horizontal screw rod 5 is fixedly welded on the output end of the servo motor 4, the middle gear 6 is fixedly welded on the middle of the horizontal screw rod 5, the bottom of the middle gear 6 is meshed with the horizontal part of the front limit plate 7, the bottom of a front limiting plate 7 is arranged in a base 1, a horizontal screw rod 5 penetrates through a threaded hole 8, the threaded hole 8 is arranged at the bottom of a side limiting plate 9, the bottom end of the side limiting plate 9 is attached to the inner wall of a movable groove 10, the movable groove 10 is arranged on the base 1, a fixing bolt 11 is fixedly welded on the top side of the side limiting plate 9, the tail end of the fixing bolt 11 is provided with an extrusion nut 12, the fixing bolt 11 penetrates through a track window 13, the track window 13 is arranged on a mounting plate 3, the back of the mounting plate 3 is fixedly provided with a slow motor 14, an output shaft 15 is arranged on the slow motor 14, the tail end of the output shaft 15 is fixedly welded with a driving gear 16, the driving gear 16 is mutually connected with the side of a function plate 17, the bottom of the function plate 17 is attached to the upper end face of the base 1, the top side of the function plate 17 is fixedly welded, the side of the contact block 19 is welded and fixed with a side bolt 20, the tail end of the side bolt 20 is provided with a clamping nut 21, the side bolt 20 penetrates through a side window 22, the side window 22 is arranged on the side of the substrate 18, the top of the substrate 18 is welded and fixed with a weight threaded column 23, the weight threaded column 23 is provided with a positioning nut 24, the top of the substrate 18 is welded and fixed with a top column 25, the outer side of the top column 25 is welded and fixed with a side convex strip 26, the top column 25 and the side convex strip 26 both penetrate through a fixing collar 27, and the fixing collar 27 is welded and fixed on the mounting plate 3.

In the embodiment, the screw directions of the threads on the two sides of the center of the horizontal screw rod 5 are opposite, 2 side limiting plates 9 are symmetrically distributed on the horizontal screw rod 5, and the bottoms of the side limiting plates 9 are in sliding connection with the movable groove 10, so that the structural design enables the horizontal screw rod 5 to drive the symmetrically distributed 2 side limiting plates 9 to perform stable sliding displacement in the horizontal direction along the movable groove 10 by utilizing the threads with the opposite screw directions on the two sides of the center of the horizontal screw rod 5 when rotating, and the sliding directions of the 2 side limiting plates 9 are opposite, thereby facilitating the rapid positioning and fixing of the lower bracket of the shock absorber;

the front limiting plate 7 is connected with the base 1 in a sliding mode, the side view shape of the front limiting plate 7 is in a shape of L, the front limiting plate 7 and the side limiting plate 9 are both made of high-speed steel plates with rough surfaces, the structural design enables the middle gear 6 to drive the front limiting plate 7 to stably move in the horizontal direction by utilizing a meshing connection relation when rotating along with the horizontal screw rod 5, the lower bracket of the shock absorber is fixed by matching with the side limiting plate 9, the high-speed steel is high in hardness and not prone to deformation and can be stably used for a long time, the static friction force during contact is increased on the rough surface, and the stability is improved;

the side of the side limiting plate 9 is attached to the mounting plate 3, the side limiting plate 9 and the fixing bolt 11 are vertically distributed, the fixing bolt 11 is in sliding connection with the track window 13, the side limiting plate 9 can drive the fixing bolt 11 to stably slide in the horizontal direction along the track window 13 through the structural design, and rapid position fixing can be performed through the fixing bolt 11 and the extrusion nut 12;

the driving gear 16 is meshed with the function board 17, and only half of the driving gear 16 is provided with the tooth convex structure, the structure design enables the function board 17 to be intermittently driven by the driving gear 16 to perform free falling body movement, so that the continuous free falling body test is conveniently performed;

a stabilizing plate 1701 is welded and fixed on the side of the functional plate 17, the front view shape of the stabilizing plate 1701 is a right triangle, the stabilizing plates 1701 are symmetrically distributed around the top pillar 25, meanwhile, the functional plate 17 and the base plate 18 are vertically distributed, and the design of the stabilizing plate 1701 strengthens the connection relationship between the functional plate 17 and the base plate 18, so that the base plate 18 is always kept vertical;

the contact blocks 19 are symmetrically distributed relative to the base plate 18, the contact blocks 19 are made of high-speed steel, the side bolts 20 are symmetrically distributed on the sides of the contact blocks 19, and the side bolts 20 are in sliding connection with the side windows 22;

side convex strip 26 has 4 about the equiangular distribution of fore-set 25 center, and fore-set 25 and side convex strip 26 all are sliding connection with fixed lantern ring 27 central hole, and foretell structural design makes fore-set 25 and side convex strip 26 can produce relative slip with fixed lantern ring 27 in the in-process of following the base plate 18 whereabouts, guarantees the vertical whereabouts that base plate 18 can be stable.

The working principle is as follows: when the device is used, firstly, the lower bracket of the shock absorber is turned over by 180 degrees, the forked mounting structure is enabled to face upwards, and the original top of the lower bracket of the shock absorber is inserted into the position between 2 side limiting plates 9 in the figure 1;

then, an external power supply circuit supplies power to a servo motor 4 in the figure 2, the servo motor 4 controls a horizontal screw rod 5 to rotate forward, the horizontal screw rod 5 drives 2 side limiting plates 9 to slide and approach through the threaded connection relation with a threaded hole 8, the original top of the lower bracket of the shock absorber is clamped from the left side and the right side, and the side limiting plates 9 drive fixing bolts 11 to slide in a track window 13 when moving;

while the horizontal screw rod 5 rotates, the horizontal screw rod 5 drives the front limiting plate 7 to move through the middle gear 6 in the figure 5, the front limiting plate 7 slides to be close to the front part of the lower bracket of the shock absorber, the lower bracket of the shock absorber is extruded and fixed on the surface of the mounting plate 3, after the front limiting plate 7 and the side limiting plate 9 are tightly contacted with the lower bracket of the shock absorber, the power supply for the servo motor 4 is stopped, the extrusion nut 12 is screwed, the mounting plate 3 is clamped by the extrusion nut 12 and the side limiting plate 9 in the figure 6, so that the position of the side limiting plate 9 is fixed, the horizontal screw rod 5 is clamped by the side limiting plate 9 through the threaded hole 8, and the front limiting plate 7 is clamped by the horizontal screw rod 5 through the middle gear 6, so that the lower bracket of the shock absorber is fixed;

then, the clamping nuts 21 on the side bolts 20 which are symmetrically distributed in the figure 1 and the figure 5 can be unscrewed from strip-shaped windows which are arranged on the front surface and the mounting plate 3, so that the clamping nuts 21 do not clamp the substrate 18 from two sides any more, the contact block 19 is stirred to slide left and right in the figure 2, the contact block 19 drives the side bolts 20 to stably slide along the side windows 22 until the bottom of the contact block 19 is aligned with the top of the forked part of the lower bracket of the shock absorber, the clamping nuts 21 are screwed, and the position of the contact block 19 is fixed;

if the falling weight of the whole base plate 18 needs to be increased, the positioning nut 24 on the weight threaded column 23 in the figure 2 can be unscrewed, the weight with the hole in the center is penetrated on the weight threaded column 23, the positioning nut 24 is installed, the positioning nut 24 is screwed downwards, and the positioning nut 24 extrudes the weight for fixing;

finally, the slow motor 14 in fig. 5 is powered by an external power supply circuit, the slow motor 14 drives the driving gear 16 in fig. 1 to rotate slowly clockwise through the output shaft 15, the tooth convex structure on the driving gear 16 utilizes the meshing connection relationship to push up the weight on the function board 17, the base board 18 and the weight threaded column 23 and the top column 25 vertically, the top column 25 carries the side convex strip 26 to slide relative to the fixed collar 27, so as to ensure that the function board 17 and the base board 18 stably move upwards vertically, then the tooth convex structure on the driving gear 16 is separated from the function board 17 after rotating 180 degrees, the function board 17 and the base board 18 fall rapidly, the top column 25 also carries the side convex strip 26 to slide relative to the fixed collar 27, so as to ensure that the function board 17 and the base board 18 can rapidly and vertically fall back to the state shown in fig. 1, so that the contact block 19 follows the free falling body of the function board 17 and the base board 18 to collide with the top of the, the test of carrying out bumper shock absorber lower carriage structural strength, driving gear 16 lasts the rotation, can be connected with the 17 avris meshing of function board once more, promotes the function board 17 after the quick whereabouts resets once more and rises to break away from once more, carry out the free falling body collision test of once more, so reciprocal, reach the effect of carrying out the collision of continuous free falling body, with the durability that detects the bumper shock absorber lower carriage, this is exactly this automobile parts research and development uses structural strength and durability detection device's theory of operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile parts research and development is with structural strength and durability detection device, includes base (1), servo motor (4), slow motor (14), weight screw thread post (23) and fixed lantern ring (27), its characterized in that: the automatic welding device is characterized in that a vertical plate (2) and a mounting plate (3) are fixedly welded on a base (1), a servo motor (4) is fixedly installed on the base (1), a horizontal screw rod (5) is fixedly welded at the output end of the servo motor (4), a middle gear (6) is fixedly welded in the middle of the horizontal screw rod (5), the bottom of the middle gear (6) is meshed with the horizontal part of a front limiting plate (7), the bottom of the front limiting plate (7) is installed in the base (1), the horizontal screw rod (5) penetrates through a threaded hole (8), the threaded hole (8) is formed in the bottom of a side limiting plate (9), the bottom of the side limiting plate (9) is attached to the inner wall of a movable groove (10), the movable groove (10) is formed in the base (1), a fixing bolt (11) is fixedly welded at the top side of the side limiting plate (9), and an extrusion nut (12) is installed at the tail end of the fixing bolt (11), and fixing bolt (11) runs through orbit window (13), and orbit window (13) is seted up on mounting panel (3) simultaneously, mounting panel (3) back is fixed with slow motor (14), and install output shaft (15) on slow motor (14), and output shaft (15) end welded fastening has driving gear (16), and driving gear (16) and function board (17) avris interconnect simultaneously, function board (17) bottom and base (1) up end laminating, and function board (17) top avris welded fastening has base plate (18), and base plate (18) bottom inboard is provided with contact piece (19), contact piece (19) avris welded fastening has side bolt (20), and side bolt (20) end installs clamping nut (21) to side bolt (20) run through side window (22), and side window (22) are seted up in base plate (18) avris simultaneously, base plate (18) top welded fastening has weight screw thread post (23), and installs set nut (24) on weight screw thread post (23), base plate (18) top welded fastening has fore-set (25), and fore-set (25) outside welded fastening has side sand grip (26) to fore-set (25) and side sand grip (26) all run through fixed lantern ring (27), fixed lantern ring (27) welded fastening is on mounting panel (3) simultaneously.

2. The apparatus for testing structural strength and durability of automobile parts according to claim 1, wherein: the screw thread spiral direction of horizontal lead screw (5) center both sides is opposite, and horizontal lead screw (5) go up symmetric distribution have 2 side limiting plate (9) to side limiting plate (9) bottom and activity groove (10) are sliding connection.

3. The structural strength and durability detecting device for the research and development of automobile parts as claimed in claim 1, wherein the front limiting plate (7) is slidably connected with the base (1), the side view shape of the front limiting plate (7) is 'L', and the front limiting plate (7) and the side limiting plate (9) are both made of high-speed steel plate with rough surface.

4. The apparatus for testing structural strength and durability of automobile parts according to claim 1, wherein: the side of the side limiting plate (9) is attached to the mounting plate (3), the side limiting plate (9) and the fixing bolt (11) are vertically distributed, and the fixing bolt (11) is in sliding connection with the track window (13).

5. The apparatus for testing structural strength and durability of automobile parts according to claim 1, wherein: the driving gear (16) is meshed with the function board (17), and only half of the driving gear (16) is provided with a tooth convex structure.

6. The apparatus for testing structural strength and durability of automobile parts according to claim 1, wherein: a stabilizing plate (1701) is welded and fixed on the side of the functional plate (17), the front view shape of the stabilizing plate (1701) is a right triangle, the stabilizing plates (1701) are symmetrically distributed about the top pillar (25), and the functional plate (17) and the substrate (18) are vertically distributed.

7. The apparatus for testing structural strength and durability of automobile parts according to claim 1, wherein: the contact blocks (19) are symmetrically distributed relative to the base plate (18), the contact blocks (19) are made of high-speed steel, side bolts (20) are symmetrically distributed on the sides of the contact blocks (19), and meanwhile the side bolts (20) are in sliding connection with the side windows (22).

8. The apparatus for testing structural strength and durability of automobile parts according to claim 1, wherein: the side convex strips (26) are distributed at equal angles about the center of the top column (25) and are 4, and the top column (25) and the side convex strips (26) are in sliding connection with the central hole of the fixed lantern ring (27).