Fixing tool for steering gear test

Abstract

The utility model discloses a steering gear test fixing tool, which comprises a first mounting plate, a plurality of second mounting plates and a limit rod, the first mounting plate is provided with a plurality of first strip-shaped through grooves at intervals along the length direction, the number of the second mounting plates is multiple, the top surface of each second mounting plate is provided with a first through hole and a second strip-shaped through groove, and the limit rod is arranged in the first strip-shaped through groove. The first strip-shaped through groove and the second strip-shaped through groove are correspondingly communicated in an angle mode, the limiting rod is provided with a first end connected with the first through hole in a matched mode, and the limiting rod is provided with a second end used for being connected with a steering gear in a matched mode. The method comprises the following steps: measuring the hole position spacing of each mounting hole of a rack and pinion steering gear assembly, selecting a proper number of second mounting plates, sequentially mounting the second mounting plates on a first mounting plate, selecting the length of a limiting rod, connecting one end of the limiting rod with the second mounting plates, and connecting the other end of the limiting rod with the mounting hole of the rack and pinion steering gear assembly. Therefore, universal fixed installation of gear rack steering gear assemblies of different models is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gear test equipment, in particular to a fixing tooling for steering gear test. Background Art

[0002] With the continuous increase in the types of gear rack steering gear assemblies and the continuous shortening of the product R & D cycle, there are many products that cannot be tested due to the lack of fixing tooling. Without the support of a stable and reliable tooling for product R & D, the authenticity of test data will be greatly reduced, seriously affecting the R & D effect.

[0003] Currently, for hundreds of product types, generally a set of special fixing tooling is designed and manufactured for each product for experimental verification in the R & D stage. The existing tooling has strong specificity, and the supporting parts are shaped, so it is impossible to achieve strong versatility. After the R & D stage, most of the tooling is idle, which causes a large waste of resources, and the management and storage of tooling of different models also waste a lot of time and energy of managers. Therefore, it is necessary to design a general fixing tooling for the installation dimensions of existing product models to meet the highly compatible installation and positioning of different products, so as to solve the above problems. Summary of the Utility Model

[0004] In view of the above technical problems, the utility model provides a fixing tooling for steering gear test. The second mounting plate is sequentially mounted on the first mounting plate, one end of the limiting rod is connected to the second mounting plate, and the other end of the limiting rod is connected to the mounting hole of the gear rack steering gear, so as to realize the general fixed installation of various gear rack steering gear assemblies of different models.

[0005] The technical solution adopted by the utility model is as follows: A fixing tooling for steering gear test, comprising a first mounting plate, a second mounting plate and a limiting rod. The first mounting plate is provided with a plurality of first strip-shaped through grooves at intervals along the length direction. The number of the second mounting plates is multiple. The top surface of the second mounting plate is provided with a first through hole and a second strip-shaped through groove. The first strip-shaped through groove and the second strip-shaped through groove are correspondingly communicated at an angle. The limiting rod has a first end that is cooperatively connected with the first through hole, and the limiting rod has a second end for cooperatively connecting with the steering gear.

[0006] Optionally, it further includes a limiting block and a screw. The limiting block abuts against the bottom surface of the first mounting plate. The limiting block is provided with a second through hole. The screw sequentially passes through the second strip-shaped through groove, the first strip-shaped through groove and is cooperatively connected with the second through hole.

[0007] Optionally, the limiting block includes a first limiting portion and a second limiting portion perpendicularly connected to the first limiting portion. The first limiting portion is provided with the second through hole. The width of the first limiting portion is smaller than the width of the first strip-shaped through groove, and the width of the second limiting portion is larger than the width of the first strip-shaped through groove.

[0008] Optionally, it further includes a third mounting plate. The side wall of the third mounting plate is provided with a groove that is movably matched with the side wall of the first mounting plate, and the top surface of the third mounting plate is provided with a third through hole that is matched with the limiting rod.

[0009] Optionally, a plurality of fourth through holes are spaced on the side wall of the first mounting plate, and the side wall of the third mounting plate is provided with a third strip-shaped through groove corresponding to and communicating with the fourth through holes.

[0010] Optionally, cushion blocks are respectively provided on the top surfaces of the second mounting plate and the third mounting plate. The cushion blocks are provided with fifth through holes for the limiting rod to pass through.

[0011] Optionally, internal threads are respectively provided on the inner peripheral walls of the first through hole, the second through hole, the third through hole, and the fourth through hole, and external threads are respectively provided at the first end and the second end of the limiting rod.

[0012] Optionally, the material of the limiting rod is medium carbon steel, and the bending strength of the limiting rod is 450 - 550 Mpa.

[0013] The beneficial effects of the present utility model are as follows: The first mounting plate is fixed on the gear-rack performance test bench, the hole position distances of each mounting hole of the gear-rack steering gear assembly are measured, an appropriate number of second mounting plates are selected, the second mounting plates are sequentially mounted on the first mounting plate, the length of the limiting rod is selected, one end of the limiting rod is connected to the second mounting plate, and the other end of the limiting rod is connected to the mounting hole of the gear-rack steering gear, so as to realize the universal fixed mounting of gear-rack steering gear assemblies of different models. The third mounting plate cooperates with the edge of the first mounting plate, increasing the support range of the first mounting plate and enhancing the versatility of the fixing tooling. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the structure of the fixing tooling for a steering gear test proposed by an embodiment of the present utility model;

[0015] Figure 2 It is a schematic diagram of the third mounting plate of the fixing tooling for a steering gear test proposed by an embodiment of the present utility model;

[0016] Figure 3 It is a schematic diagram of the limiting block of the fixing tooling for a steering gear test proposed by an embodiment of the present utility model.

[0017] The reference numerals in the respective drawings are as follows: 1, the first mounting plate; 11, the first strip-shaped through groove; 12, the fourth through hole; 2, the second mounting plate; 21, the first through hole; 22, the second strip-shaped through groove; 3, the third mounting plate; 31, the groove; 32, the third through hole; 33, the third strip-shaped through groove; 4, the limiting rod; 5, the limiting block; 51, the second through hole; 52, the first limiting portion; 53, the second limiting portion; 6, the screw; 7, the cushion block. Specific embodiments

[0018] The present application will be further described in detail below in conjunction with the drawings and embodiments.

[0019] As Figures 1 to 3 shown, this embodiment discloses a fixing tool for a steering gear test, including a first mounting plate 1, a second mounting plate 2 and a limiting rod 4. The first mounting plate 1 is provided with a plurality of first strip-shaped through grooves 11 at intervals along the length direction. The number of the second mounting plates 2 is multiple. The top surface of the second mounting plate 2 is provided with a first through hole 21 and a second strip-shaped through groove 22. The first strip-shaped through groove 11 and the second strip-shaped through groove 22 are in angular correspondence and communication. The limiting rod 4 has a first end that is cooperatively connected with the first through hole 21, and the limiting rod 4 has a second end for cooperatively connecting with the steering gear. The first mounting plate 1 is fixed on the gear rack performance test bench, the hole position spacing of each mounting hole of the gear rack steering gear assembly is measured, an appropriate number of second mounting plates 2 are selected, the second mounting plates 2 are sequentially mounted on the first mounting plate 1, the length of the limiting rod 4 is selected, one end of the limiting rod 4 is connected to the second mounting plate 2, and the other end of the limiting rod 4 is connected to the mounting hole of the gear rack steering gear, so as to realize the universal fixed installation of gear rack steering gear assemblies of different models.

[0020] As Figure 1 and 3 shown, it further includes a limiting block 5 and a screw 6. The limiting block 5 abuts against the bottom surface of the first mounting plate 1. The limiting block 5 is provided with a second through hole 51. The screw 6 sequentially passes through the second strip-shaped through groove 22, the first strip-shaped through groove 11 and is cooperatively connected with the second through hole 51. The screw 6 sequentially passes through the second strip-shaped through groove 22 and the first strip-shaped through groove 11 to mount the second mounting plate 2 on the first mounting plate 1 and fix it with the limiting block 5. The limiting block 5 includes a first limiting portion 52 and a second limiting portion 53 that is perpendicularly connected to the first limiting portion 52. The first limiting portion 52 is provided with the second through hole 51. The width of the first limiting portion 52 is smaller than the width of the first strip-shaped through groove 11, and the width of the second limiting portion 53 is larger than the width of the first strip-shaped through groove 11. The limiting block 5 is of a T-shaped structure. The first limiting portion 52 enters the first strip-shaped through groove 11, the second limiting portion 53 abuts against the bottom surface of the first mounting plate 1, and the screw 6 is cooperatively connected with the second through hole 51. The limiting block 5 is of an integrally formed structure.

[0021] AsFigure 1 and 2 As shown in 2 , it further includes a third mounting plate 3. A groove 31 that is movably engaged with the side wall of the first mounting plate 1 is provided on the side wall of the third mounting plate 3, and a third through hole 32 that cooperates with the limiting rod 4 is provided on the top surface of the third mounting plate 3. The third mounting plate 3 cooperates with the edge of the first mounting plate 1, increasing the support range of the first mounting plate 1 and enhancing the versatility of the fixing tooling. A plurality of fourth through holes 12 are provided at intervals on the side wall of the first mounting plate 1, and a third strip-shaped through groove 33 corresponding to and communicating with the fourth through holes 12 is provided on the side wall of the third mounting plate 3. The third strip-shaped through groove 33 and the fourth through holes 12 are for screws to pass through in sequence to mount the third mounting plate 3 on the first mounting plate 1.

[0022] As Figure 1 shown in Figure 1 , cushion blocks 7 are respectively provided on the top surfaces of the second mounting plate 2 and the third mounting plate 3. The cushion blocks 7 are provided with fifth through holes for the limiting rod 4 to pass through. If there is a height difference between the mounting holes of the gear rack steering gear assembly, the cushion block 7 can be placed on the second mounting plate 2 to make up for the height difference. Internal threads are respectively provided on the inner peripheral walls of the first through hole 21, the second through hole 51, the third through hole 32, and the fourth through hole 12, and external threads are respectively provided at the first end and the second end of the limiting rod 4. The limiting rod 4 is a double-headed screw 6. The first end of the limiting rod 4 is threadedly connected to the second mounting plate 2 or the third mounting plate 3, and the second end of the limiting rod 4 is threadedly connected to the mounting hole on the gear rack steering gear assembly. The material of the limiting rod 4 is medium carbon steel, and the bending strength of the limiting rod 4 is 450 - 550 Mpa. According to the test items that the gear rack performance test bench can complete and the load limits of each sensor, under the normal use limit state of this equipment, it is concluded that the most unfavorable test for the fixing tooling for the steering gear test is the reverse driving force test. The stress generated when the limiting rod 4 is used with a force greater than the maximum reverse thrust of 1000 N meets the usage requirements under the normal use limit state of the equipment.

[0023] It can be understood that the specific embodiments described above are only used to explain the relevant utility model, rather than limiting the utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradiction or conflict. All equivalent structural transformations made by using the content of the specification and drawings of this utility model, directly or indirectly applied in other related technical fields, are similarly included in the protection scope of this utility model.

Claims

1. A fixed fixture for steering gear testing, characterized in that: It includes a first mounting plate, a second mounting plate and a limiting rod, the first mounting plate is provided with a plurality of first strip-shaped through grooves spaced apart along the length direction, the second mounting plate is provided with a plurality of first through holes and a second strip-shaped through groove on the top surface, the first strip-shaped through groove is connected to the second strip-shaped through groove at corresponding angles, the limiting rod has a first end which is matched and connected with the first through hole, and the limiting rod has a second end which is used to match and connect with the steering gear.

2. The fixing fixture for steering gear testing according to claim 1, characterized in that: It also includes a limit block and a screw rod, wherein the limit block abuts against the bottom surface of the first mounting plate, the limit block is provided with a second through hole, and the screw rod sequentially passes through the second strip through groove, the first strip through groove and the second through hole.

3. The fixing fixture for steering gear testing according to claim 2, characterized in that: The limiting block includes a first limiting portion and a second limiting portion vertically connected to the first limiting portion, the first limiting portion is provided with the second through hole, the width of the first limiting portion is smaller than the width of the first strip-shaped through groove, and the width of the second limiting portion is larger than the width of the first strip-shaped through groove.

4. The fixing fixture for steering gear testing according to claim 1, characterized in that: It also includes a third mounting plate, the side wall of the third mounting plate is provided with a groove that movably cooperates with the side wall of the first mounting plate, and the top surface of the third mounting plate is provided with a third through hole that cooperates with the limiting rod.

5. The fixing fixture for steering gear testing according to claim 4, characterized in that: The side wall of the first mounting plate is provided with a plurality of fourth through holes at intervals, and the side wall of the third mounting plate is provided with a third strip-shaped through groove correspondingly connected to the fourth through holes.

6. The fixing fixture for steering gear testing according to claim 4, characterized in that: Cushion blocks are respectively disposed on the top surfaces of the second mounting plate and the third mounting plate, and the cushion blocks are provided with fifth through holes for the limiting rod to pass through.

7. The fixing fixture for steering gear testing according to claim 5, characterized in that: The inner circumferential wall of the first through hole, the inner circumferential wall of the second through hole, the inner circumferential wall of the third through hole, and the fourth through hole are respectively provided with internal threads, and the first end and the second end of the limiting rod are respectively provided with external threads.

8. The fixing fixture for steering gear testing according to claim 1, characterized in that: The material of the limit rod is medium carbon steel, and the bending strength of the limit rod is 450-550 MPa.

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