Tool rack for rigidity test of front and rear covers of automobile

Abstract

The utility model relates to the technical field of automobile rigidity test, in particular to a tool rack for rigidity test of front and rear covers of an automobile, which comprises a platform, an adjusting sliding table is fixedly connected to the surface of the platform, a fixed base is fixedly connected to the surface of the adjusting sliding table, and an air cylinder is fixedly connected to the surface of the fixed base. And an output shaft of the air cylinder is movably connected with a connecting block. The test bench has the characteristics of simplicity in operation, convenience and rapidness in adjustment, high reliability, strong interchangeability, good bearing performance, strong universality and the like, and completely meets the loading and restraining requirements of different parts of bench tests such as double-side torsional rigidity, single-side torsional rigidity, angular rigidity, middle-rear rigidity and the like of front and rear covers of various passenger cars; the working efficiency of construction and adjustment of the test bench is effectively improved, the project development cost is reduced, test resources are saved, and it is ensured that the test is smoothly carried out according to design nodes.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile rigidity testing, in particular to a tooling bench for rigidity testing of automobile front and rear covers. Background Art

[0002] When developing a new type of car, it is necessary to go through the stages of market research, positioning - styling design, verification - engineering design (body, chassis, electronics, interior and exterior decoration, etc.) - prototype trial production - test verification - mass production. Among them, test verification is to actually verify the various performance and reliability of the newly developed model. It is of great significance to the entire model development to the final mass production and listing. It is an effective way to test whether the existing design is qualified, and provide a basis for further modification and optimization of the model under development. At the same time, it can effectively reduce development costs and shorten the development cycle.

[0003] The front and rear cover (tailgate) stiffness test of automobile belongs to the reliability bench test of components. When doing the above-mentioned front and rear cover (tailgate) stiffness test, a universal tooling bench is needed to adapt to the loading constraint needs of multiple working conditions. At present, this tooling bench is non-standard at home and abroad, and there is no standard fixed test bench. When the front and rear cover (tailgate) stiffness test is conducted, if there is no good test tooling bench, the test personnel will often have low work efficiency and waste a lot of test resources when setting up and adjusting the bench, and the front and rear cover stiffness test cannot be carried out smoothly according to the test nodes. Utility Model Content

[0004] The purpose of the utility model is to provide a tooling bench for automobile front and rear cover stiffness testing, so as to solve the problems proposed in the above background technology that test personnel often have low work efficiency and waste of test resources when building and adjusting the bench, and cannot smoothly carry out the front and rear cover stiffness testing according to the test nodes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tooling bench for testing the stiffness of automobile front and rear covers, comprising a platform, the surface of the platform is fixedly connected with an adjusting slide, the surface of the adjusting slide is fixedly connected with a fixed base, the surface of the fixed base is fixedly connected with a cylinder, the output shaft of the cylinder is movably connected with a connecting block, the surface of the adjusting slide is slidably connected with the adjusting base, the surface of the adjusting base is fixedly connected with a supporting column, the surface of the supporting column is connected with a connecting column by bolts, the surface of the connecting column is movably connected with a loading electric cylinder, the surface of the adjusting slide is provided with a limiting groove, the output shaft of the loading electric cylinder is fixedly connected with a connecting screw, the surface of the adjusting slide is penetrated with an adjusting screw, the bottom end of the adjusting base is fixedly connected with an adjusting block and a limiting block, the surface of the connecting column is fixedly connected with a first fixing plate, the bottom end of the loading electric cylinder is fixedly connected with a second fixing plate, the surface of the second fixing plate is penetrated with a control screw, and the outer surface of the control screw is connected with a screw sleeve by a threaded sleeve.

[0006] Preferably, the fixed base is in the shape of a plate and fixedly connected to the middle position of the adjusting slide, and the connecting block consists of two parts, one part of the connecting block is in the shape of a plate, and the other part of the connecting block is in the shape of a cylinder, and the connecting block acts on the top of the platform through a cylinder.

[0007] Preferably, the adjusting base is in a plate shape and acts on both ends of the adjusting slide, the loading electric cylinder acts on the top of the platform through the connecting column and the supporting column, and the loading electric cylinder and the adjusting base are connected correspondingly.

[0008] Preferably, the supporting column and the connecting column have the same shape, the limiting groove is in the shape of a long groove and is opened on both sides of the surface of the adjusting slide, and a through hole is opened at one end of the connecting screw away from the loading cylinder.

[0009] Preferably, the adjustment block is in a block shape and acts on the bottom end of the adjustment base. A screw hole is opened through the surface of the adjustment block. The adjustment screw passes through the surface of the adjustment block through the screw hole. The adjustment block is slidably connected to the adjustment slide through the adjustment screw.

[0010] Preferably, the limit blocks are in two groups and act on both sides of the adjustment block, the bottom ends of the limit blocks are movably connected with a rotating wheel, and the limit blocks are slidably connected to the limit grooves through the rotating wheel.

[0011] Preferably, the first fixing plate is in a semi-disc shape, the second fixing plate is consistent in shape with the first fixing plate, and the control screw passes through the first fixing plate and the second fixing plate and is rotatably connected to the threaded sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The tooling bench has the characteristics of simple operation, convenient and fast adjustment, high reliability, strong interchangeability, good load-bearing capacity and strong versatility. It can fully meet the loading and constraint requirements of different parts of the bench test such as the bilateral torsional stiffness, unilateral torsional stiffness, angular stiffness, and middle and rear stiffness of the front and rear covers of various passenger cars. The bench can realize complex working conditions such as middle support, simultaneous loading of left and right sides, unilateral loading, two-side support constraints and simultaneous support constraints of three parts. The use of the tooling bench effectively improves the work efficiency of test bench construction and adjustment, while reducing project development costs, saving test resources, and ensuring the smooth progress of the test according to the design nodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a side perspective schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a partial three-dimensional schematic diagram of the connection structure between the adjusting slide and the adjusting base of the utility model;

[0017] Figure 4 This is a bottom-up exploded perspective view of the connection structure between the adjusting slide and the adjusting base of the utility model;

[0018] Figure 5 It is a three-dimensional exploded schematic diagram of the connection structure of the connecting column and the loading electric cylinder of the utility model.

[0019] In the figure: 1. Platform; 2. Adjusting slide; 3. Fixed base; 4. Cylinder; 5. Connecting block; 6. Adjusting base; 7. Support column; 8. Connecting column; 9. Loading electric cylinder; 10. Limiting groove; 11. Connecting screw; 12. Adjusting screw; 13. Adjusting block; 14. Limiting block; 15. First fixing plate; 16. Second fixing plate; 17. Control screw; 18. Screw sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 , an embodiment provided by the utility model:

[0022] A tooling bench for testing the stiffness of the front and rear covers of automobiles, comprising a platform 1, an adjusting slide 2 is fixedly connected to the surface of the platform 1, a fixed base 3 is fixedly connected to the surface of the adjusting slide 2, a cylinder 4 is fixedly connected to the surface of the fixed base 3, a connecting block 5 is movably connected to the output shaft of the cylinder 4, an adjusting base 6 is slidably connected to the surface of the adjusting slide 2, a supporting column 7 is fixedly connected to the surface of the adjusting base 6, a connecting column 8 is bolted to the surface of the supporting column 7, a loading electric cylinder 9 is movably connected to the surface of the connecting column 8, a limiting groove 10 is provided on the surface of the adjusting slide 2, a connecting screw 11 is fixedly connected to the output shaft of the loading electric cylinder 9, and an adjusting screw is connected to the surface of the adjusting slide 2 through 12, the bottom end of the adjusting base 6 is fixedly connected with an adjusting block 13 and a limiting block 14, the surface of the connecting column 8 is fixedly connected with a first fixing plate 15, the bottom end of the loading electric cylinder 9 is fixedly connected with a second fixing plate 16, the surface of the second fixing plate 16 is penetrated by a control screw 17, the outer surface of the control screw 17 is connected with a screw sleeve 18 through a threaded sleeve, through the connection between the adjusting base 6 and the adjusting block 13, under the connection between the adjusting screw 12 and the adjusting block 13, the adjusting screw 12 is rotated to realize the change of the action position of the adjusting base 6 on the adjusting slide 2, under the connection between the limiting groove 10 and the limiting block 14, the limiting support effect of the sliding angle of the adjusting base 6 on the adjusting slide 2 is achieved.

[0023] Furthermore, the fixed base 3 is in the shape of a plate and fixedly connected to the middle position of the adjusting slide 2. The connecting block 5 consists of two parts, one part of the connecting block 5 is in the shape of a plate, and the other part of the connecting block 5 is in the shape of a cylinder. The connecting block 5 acts on the top of the platform 1 through the cylinder 4, and through the connection between the platform 1 and the adjusting slide 2, and the connection between the adjusting slide 2 and the fixed base 3, under the action of the fixed base 3, the supporting effect of the action position of the cylinder 4 is achieved. Through the connection between the cylinder 4 and the connecting block 5, under the action of the connecting block 5, the connection support of the middle lock hook position of the front cover of the car and the lock hole position of the rear cover is convenient.

[0024] Furthermore, the adjusting base 6 is in a plate shape and acts on both ends of the adjusting slide 2. The loading electric cylinder 9 acts on the top of the platform 1 through the connecting column 8 and the supporting column 7. The loading electric cylinder 9 and the adjusting base 6 are correspondingly connected. Through the connection between the adjusting base 6 and the adjusting slide 2, under the action of the supporting column 7 and the connecting column 8, the supporting effect of the action position of the loading electric cylinder 9 is achieved. Under the action of the loading electric cylinder 9, the stiffness loading test of the front and rear covers of the car is facilitated.

[0025] Furthermore, the support column 7 and the connecting column 8 have the same shape, and the limit groove 10 is formed in the shape of a long groove and is opened on both sides of the surface of the adjusting slide 2. A through hole is opened at the end of the connecting screw 11 away from the loading cylinder 9. Through the connection between the limit groove 10 and the adjusting slide 2, under the action of the limit groove 10, the sliding angle of the adjusting base 6 on the adjusting slide 2 is limited. Under the action of the connecting screw 11, the through hole on the surface of the connecting screw 11 facilitates the connection of the mounting hole positions of the side buffer blocks of the front and rear covers of the automobile.

[0026] Furthermore, the adjusting block 13 is in a block shape and acts on the bottom end of the adjusting base 6. A screw hole is opened through the surface of the adjusting block 13. The adjusting screw 12 passes through the surface of the adjusting block 13 through the screw hole. The adjusting block 13 is slidably connected to the adjusting slide 2 through the adjusting screw 12. Through the connection between the adjusting base 6 and the adjusting block 13, when the adjusting screw 12 and the adjusting slide 2 rotate, the rotating position of the adjusting screw 12 on the adjusting slide 2 remains unchanged, so that the action position of the adjusting block 13 on the adjusting screw 12 changes slowly, thereby achieving the effect of regulating the action position of the adjusting base 6 on the adjusting slide 2.

[0027] Furthermore, the limit blocks 14 are in two groups and act on both sides of the adjustment block 13. The bottom end of the limit block 14 is movably connected with a rotating wheel. The limit block 14 is slidably connected to the limit groove 10 through the rotating wheel. Through the action of the rotating wheel on the limit block 14 and the abutting and rotating connection between the rotating wheel and the limit groove 10, the sliding angle of the adjustment base 6 on the adjustment slide 2 is limited and supported.

[0028] Furthermore, the first fixed plate 15 is in a semi-disc shape, and the second fixed plate 16 is consistent in shape with the first fixed plate 15. The control screw 17 passes through the first fixed plate 15 and the second fixed plate 16 and is rotatably connected to the screw sleeve 18. Under the connection between the connecting column 8 and the first fixed plate 15, the connection between the loading electric cylinder 9 and the second fixed plate 16 is achieved through the control screw 17 and the screw sleeve 18, so as to achieve the support and control effect of the action angle of the loading electric cylinder 9 on the connecting column 8, thereby improving the performance and range of use of the loading electric cylinder 9.

[0029] Working principle: When conducting a stiffness test on the front and rear covers of a car, firstly, the middle lock hook position of the front cover of the car or the lock hole position of the rear cover is applied above the cylinder 4. Under the rotation of the connecting block 5 and the cylinder 4, the connecting block 5 enters the middle lock hook position or the lock hole position to achieve the position constraint effect on the front and rear covers of the car. Then, the adjusting screw 12 is rotated. Under the action of the adjusting block 13, the adjusting base 6 drives the loading cylinder 9 to change its position. When the loading cylinder 9 acts on the corresponding position, a hook is added to the installation position of the buffer block on the side of the front and rear covers of the car to connect the hook with the through hole on the connecting screw 11, or resin is filled at the installation position of the buffer block to make it threadedly connected with the connecting screw 11. Through the action of the loading cylinder 9, force is applied to both sides of the front and rear covers of the car to achieve the stiffness test effect. When the middle part is tested, the loading cylinders 9 on both sides are stationary, and the cylinder 4 is extended and retracted to complete the test. For a unilateral stiffness test, the loading cylinder 9 in the relative position can be controlled to complete the test operation, thereby improving the test range and performance.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A tooling bench for testing the stiffness of a front and rear cover of an automobile, comprising a platform (1), characterized in that: The surface of the platform (1) is fixedly connected to an adjusting slide (2), the surface of the adjusting slide (2) is fixedly connected to a fixed base (3), the surface of the fixed base (3) is fixedly connected to a cylinder (4), the output shaft of the cylinder (4) is movably connected to a connecting block (5), the surface of the adjusting slide (2) is slidably connected to an adjusting base (6), the surface of the adjusting base (6) is fixedly connected to a supporting column (7), the surface of the supporting column (7) is connected to a connecting column (8) by bolts, the surface of the connecting column (8) is movably connected to a loading electric cylinder (9), and the surface of the adjusting slide (2) is open A limiting groove (10) is provided, the output shaft of the loading electric cylinder (9) is fixedly connected with a connecting screw (11), the surface of the adjusting slide (2) is connected through an adjusting screw (12), the bottom end of the adjusting base (6) is fixedly connected with an adjusting block (13) and a limiting block (14), the surface of the connecting column (8) is fixedly connected with a first fixing plate (15), the bottom end of the loading electric cylinder (9) is fixedly connected with a second fixing plate (16), the surface of the second fixing plate (16) is connected through a control screw (17), and the outer surface of the control screw (17) is connected with a screw sleeve (18) through a threaded sleeve.

2. The tooling bench for automobile front and rear cover stiffness test according to claim 1 is characterized in that: The fixed base (3) is in the shape of a plate and is fixedly connected to the middle position of the adjusting slide (2). The connecting block (5) consists of two parts, one part of the connecting block (5) is in the shape of a plate, and the other part of the connecting block (5) is in the shape of a cylinder. The connecting block (5) acts on the top of the platform (1) through the cylinder (4).

3. The tooling bench for automobile front and rear cover stiffness test according to claim 1 is characterized in that: The adjusting base (6) is in the form of a plate and acts on both ends of the adjusting slide (2); the loading electric cylinder (9) acts on the top of the platform (1) through a connecting column (8) and a supporting column (7); and the loading electric cylinder (9) and the adjusting base (6) are connected correspondingly.

4. The tooling bench for automobile front and rear cover stiffness test according to claim 1, characterized in that: The support column (7) and the connecting column (8) have the same shape, the limiting groove (10) is in the shape of a long groove and is opened on both sides of the surface of the adjusting slide (2), and a through hole is opened at one end of the connecting screw (11) away from the loading electric cylinder (9).

5. The tooling bench for automobile front and rear cover stiffness test according to claim 1 is characterized in that: The adjusting block (13) is in a block shape and acts on the bottom end of the adjusting base (6). A screw hole is formed through the surface of the adjusting block (13). The adjusting screw rod (12) passes through the surface of the adjusting block (13) through the screw hole. The adjusting block (13) is slidably connected to the adjusting slide table (2) through the adjusting screw rod (12).

6. The tooling bench for automobile front and rear cover stiffness test according to claim 1, characterized in that: The limit blocks (14) are in two groups and act on both sides of the adjustment block (13); the bottom ends of the limit blocks (14) are movably connected to a rotating wheel; the limit blocks (14) are slidably connected to the limit grooves (10) via the rotating wheel.

7. The tooling bench for automobile front and rear cover stiffness test according to claim 1, characterized in that: The first fixing plate (15) is in the shape of a semicircular disk, the second fixing plate (16) is in the same shape as the first fixing plate (15), and the control screw (17) passes through the first fixing plate (15) and the second fixing plate (16) and is rotatably connected to the screw sleeve (18).

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