Anti-deformation hydraulic clamp for casting shell machining

Abstract

The utility model discloses a casting shell machining anti-deformation hydraulic clamp, which relates to the technical field of steering gear shell clamps, and comprises a base and a converter shell, a lower clamp is fixedly mounted at the top of the base, the lower clamp is matched with the converter shell, two groups of mounting vertical plates are fixedly mounted at the top of the base, and the mounting vertical plates are symmetrically arranged. Compared with the prior art, through cooperation of the lower clamp and the upper clamp, the converter shell can be integrally fixed to a set position, the positioning and clamping process is simpler, meanwhile, due to the fact that the contact face is enlarged, the fixing effect on the converter shell is better, deformation generated by machining can be reduced, and the machining efficiency is improved. The inner wall of the converter shell is supported through the arranged inner supporting assembly, when the first machining feature and the second machining feature are machined, the influence of heat and cutting action on the converter shell can be reduced, deformation is greatly reduced, and the machining quality is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gear housing clamps, in particular to a hydraulic clamp for machining anti-deformation of casting housings. Background Art

[0002] The steering gear is an important component in the automobile steering system, responsible for converting the driver's steering input into the steering action of the wheels. The steering gear housing is generally manufactured using a casting process, and then the mating parts of the converter housing are fine-machined. In this process, a customized fixture is required to clamp the converter housing for easy processing.

[0003] A Chinese patent with publication number CN115673818A discloses a steering gear housing clamp, which includes: a tooling table; a plurality of support pins, which are arranged on the tooling table and on the lower side of the reinforcing plate to support the two reinforcing plates respectively; the device clamps the steering gear housing through a pressing mechanism and a supporting assembly, but the clamping structure cannot support the interior of the housing during the processing of the housing. When processing the hole in the middle part of the housing, due to the complex shape and thin pipe wall, the heat generated by the processing and the cutting action can easily cause the housing to deform during processing. Therefore, we propose a casting housing processing anti-deformation hydraulic clamp to solve the problem that the steering gear housing has no support inside and is prone to deformation during processing. Utility Model Content

[0004] The utility model aims to provide a hydraulic clamp for preventing deformation of a casting shell in order to solve the problem in the background art that the steering gear shell has no support inside and is prone to deformation during processing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic clamp for anti-deformation of a casting shell, comprising: a base and a converter shell, a lower clamp is fixedly installed on the top of the base, the lower clamp is adapted to the converter shell, two sets of mounting vertical plates are fixedly installed on the top of the base, the mounting vertical plates are symmetrically arranged, an upper clamp is hingedly installed on the top of the lower clamp, the upper clamp is adapted to the converter shell, and the lower clamp and the upper clamp are used to fix the outer side of the converter shell;

[0006] An inner support assembly is slidably mounted on one side of the mounting vertical plate, and the inner support assembly is used to support the interior of the converter housing.

[0007] Preferably, a first machining feature is provided in the middle of the converter housing, a second machining feature is provided on one side of the converter housing, and a mounting base is provided on the other side of the converter housing.

[0008] Preferably, an arc-shaped bottom groove is provided on the top of the lower clamp, and the arc-shaped bottom groove is adapted to be matched with the bottom of the converter housing. A first clearance groove is provided on the top of the lower clamp, and a second clearance groove is provided in the middle of the arc-shaped bottom groove. The first clearance groove is a semi-cylindrical groove and its position is adapted to be matched with the second processing feature. A positioning base surface is provided on the top of the lower clamp, and the positioning base surface is adapted to be matched with the mounting base. Limiting holes are provided on both sides of the lower clamp.

[0009] Preferably, a pressure claw is provided on one side of the upper clamp, the bottom of the pressure claw is adapted to the converter housing, a threaded seat is provided on one side of the pressure claw, a third clearance groove is provided on the pressure claw, the third clearance groove is a through groove and its position is adapted to the first processing feature.

[0010] Preferably, the inner support assembly includes a sliding sleeve fixedly mounted on the mounting vertical plate, a hydraulic rod is slidably mounted inside the sliding sleeve, an auxiliary base is fixedly mounted on one side of the hydraulic rod, a hydraulic interface is fixedly mounted on one side of the auxiliary base, the hydraulic interface is connected to the hydraulic rod, a limiting rod is fixedly mounted on the other side of the auxiliary base, the limiting rod is slidably connected to the limiting hole, an elastic hoop is slidably mounted on the protruding end of the hydraulic rod, a steel wire rope is fixedly mounted on one side of the elastic hoop, the other end of the steel wire rope is fixedly connected to the fixed end of the hydraulic rod, and a guide head is fixedly mounted on one side of the protruding end of the hydraulic rod.

[0011] Preferably, the diameter of one side of the guide head is the same as that of the extended end of the hydraulic rod, a step is provided in the middle of the guide head, a slope is provided at the step, and an arc chamfer is provided on the other side of the guide head, and the diameter is larger than the diameter at the step.

[0012] Preferably, the elastic hoop is in the shape of a hoop with a notch as a whole, the elastic hoop is made of elastic metal, and the outer ring of the elastic hoop is provided with a high temperature resistant rubber layer.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model has a reasonable structure. The positioning base surface is matched with the mounting base to determine the positioning reference of the converter housing. The lower clamp is matched with the upper clamp to fix the converter housing as a whole at a predetermined position. Compared with the prior art, the positioning and clamping process is simpler. At the same time, due to the increase in the contact surface, the fixing effect of the converter housing is better, and the deformation caused by processing can also be reduced.

[0015] 2. In the utility model, through the provided guide head, the elastic hoop can be opened outward and moved to the step of the guide head. At this time, the elastic hoop squeezes the inner wall of the converter housing to complete the support of the inner wall of the converter housing. Compared with the prior art, the support of the inner wall of the converter housing is achieved by the provided internal support component. When processing the first processing feature and the second processing feature, the influence of heat and cutting action on the converter housing can be reduced, the deformation is greatly reduced, and the processing quality is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model in an open state;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower clamp of the utility model;

[0019] Figure 4 This is an exploded schematic diagram of the inner support assembly of the utility model;

[0020] Figure 5 This is a schematic diagram of the supporting state structure of the inner supporting assembly of the utility model;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the converter housing of the utility model;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the installation base of the utility model.

[0023] In the figure: 1. base; 2. converter housing; 3. first processing feature; 4. second processing feature; 5. mounting base; 6. lower clamp; 7. upper clamp; 8. mounting vertical plate; 9. arc bottom groove; 10. first clearance groove; 11. second clearance groove; 12. positioning base surface; 13. pressure claw; 14. third clearance groove; 15. sliding sleeve; 16. hydraulic rod; 17. auxiliary base; 18. hydraulic interface; 19. limit rod; 20. wire rope; 21. elastic hoop; 22. guide head; 23. limit hole. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figures 1 to 7 The shown anti-deformation hydraulic clamp for machining casting shells comprises: a base 1 and a converter shell 2, a first machining feature 3 is provided in the middle of the converter shell 2, a second machining feature 4 is provided on one side of the converter shell 2, a mounting base 5 is provided on the other side of the converter shell 2, a lower clamp 6 is fixedly installed on the top of the base 1, and the lower clamp 6 is adapted to the converter shell 2, two groups of mounting vertical plates 8 are fixedly installed on the top of the base 1, and the mounting vertical plates 8 are symmetrically arranged, an upper clamp 7 is hingedly installed on the top of the lower clamp 6, and the upper clamp 7 is adapted to the converter shell 2, and the lower clamp 6 and the upper clamp 7 are used to fix the outer side of the converter shell 2; an inner support component is slidably installed on one side of the mounting vertical plate 8, and the inner support component is used to support the inside of the converter shell 2; the converter shell 2 is clamped in the clamp. Before, the mounting base 5 has been used as a reference to complete the processing. When the fixture is clamped, the converter housing 2 is first placed in the middle of the lower fixture 6. After the inner support assembly is inserted into the cylinders on both sides of the converter housing 2, the inner support assembly expands to support the inner wall of the converter housing 2. At this time, the upper fixture 7 is buckled on the upper part of the converter housing 2 and pressed on the converter housing 2 by bolts to complete the clamping of the converter housing 2. Compared with the prior art, the inner support assembly can be set to support the interior of the converter housing 2. When the first processing feature 3 and the second processing feature 4 on the converter housing 2 are processed, since the inner wall near this place is supported by the inner support assembly, during the processing, the influence of heat and cutting action on the converter housing 2 can be reduced, the deformation is greatly reduced, and the processing quality is higher.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, an arc-shaped bottom groove 9 is provided at the top of the lower clamp 6, and the arc-shaped bottom groove 9 is adapted to the bottom of the converter housing 2. A first clearance groove 10 is provided at the top of the lower clamp 6, and a second clearance groove 11 is provided in the middle of the arc-shaped bottom groove 9. The first clearance groove 10 is a semi-cylindrical groove and its position is adapted to the second processing feature 4. A positioning base surface 12 is provided at the top of the lower clamp 6, and the positioning base surface 12 is adapted to the mounting base 5. Limiting holes 23 are provided on both sides of the lower clamp 6; a pressure claw 13 is provided on one side of the upper clamp 7, and the bottom of the pressure claw 13 is adapted to the converter housing 2, and a threaded seat is provided on one side of the pressure claw 13, and a third clearance groove 14 is provided on the pressure claw 13, and the third clearance groove 14 is a through groove and its position is adapted to the first processing feature 3 are adapted to each other; the positioning base surface 12 is matched with the mounting base 5 to determine the positioning reference of the converter housing 2, the first clearance groove 10 is set to facilitate the processing of the second processing feature 4, and the converter housing 2 can be fixed as a whole at a predetermined position in cooperation with the upper clamp 7, and the top of the converter housing 2 is pressed by the set pressure claw 13, and the third clearance groove 14 is set to facilitate the processing of the first processing feature 3. After the pressure claw 13 is fixed to the lower clamp 6 by bolts, the clamping of the converter housing 2 is completed. Compared with the prior art, the positioning and clamping process is simpler. At the same time, due to the increase in the contact surface, the fixing effect of the converter housing 2 is better, and the deformation caused by processing can also be reduced.

[0027] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the inner support assembly includes a sliding sleeve 15 fixedly mounted on the mounting vertical plate 8, a hydraulic rod 16 is slidably mounted inside the sliding sleeve 15, an auxiliary base 17 is fixedly mounted on one side of the hydraulic rod 16, a hydraulic interface 18 is fixedly mounted on one side of the auxiliary base 17, the hydraulic interface 18 is connected to the hydraulic rod 16, a limiting rod 19 is fixedly mounted on the other side of the auxiliary base 17, the limiting rod 19 is slidably connected to the limiting hole 23, an elastic hoop 21 is slidably mounted on the protruding end of the hydraulic rod 16, the elastic hoop 21 is in the shape of a hoop with a notch as a whole, and the elastic hoop 21 is made of elastic metal. The outer ring of the elastic hoop 21 is provided with a high temperature resistant rubber layer, a steel wire rope 20 is fixedly installed on one side of the elastic hoop 21, and the other end of the steel wire rope 20 is fixedly connected to the fixed end of the hydraulic rod 16, and a guide head 22 is fixedly installed on one side of the extended end of the hydraulic rod 16, and the diameter of one side of the guide head 22 is the same as that of the extended end of the hydraulic rod 16, and a step is provided in the middle part of the guide head 22, and a slope is provided at the step, and an arc chamfer is provided on the other side of the guide head 22, and the diameter is larger than the diameter at the step; after the converter housing 2 is placed on the lower clamp 6, the inner support assembly is pushed into the two side circular The guide head 22 is pressed against the fixed end of the hydraulic rod 16. Since the elastic hoop 21 is set as an open hoop, the elastic hoop 21 opens outward and moves to the step of the guide head 22 under the gradual squeezing of the guide head 22. At this time, the elastic hoop 21 squeezes the inner wall of the converter housing 2 to complete the support of the inner wall of the converter housing 2. After the processing is completed, the hydraulic rod 16 extends outward. Due to the existence of the wire rope 20, the elastic hoop 21 cannot extend outward with the guide head 22. After the guide head 22 extends for a certain distance, the elastic hoop 21 shrinks to its original size. At this time, the inner support assembly can be slid away from the converter housing 2 and the converter housing 2 can be removed. The limit rod 19 can prevent the hydraulic rod 16 from rotating and prevent the hydraulic rod 16 from tilting during the sliding process. Compared with the prior art, the inner support assembly is provided to support the inner wall of the converter housing 2. When processing the first processing feature 3 and the second processing feature 4, the influence of heat and cutting action on the converter housing 2 can be reduced, deformation is greatly reduced, and processing quality is higher.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been 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 make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic clamp for anti-deformation of casting shell processing, characterized in that: include: A base (1) and a converter housing (2), wherein a lower clamp (6) is fixedly mounted on the top of the base (1), and the lower clamp (6) is adapted to be arranged with the converter housing (2); two sets of mounting vertical plates (8) are fixedly mounted on the top of the base (1), and the mounting vertical plates (8) are symmetrically arranged; an upper clamp (7) is hingedly mounted on the top of the lower clamp (6), and the upper clamp (7) is adapted to be arranged with the converter housing (2); the lower clamp (6) and the upper clamp (7) are used to fix the outer side of the converter housing (2); An inner support component is slidably mounted on one side of the mounting vertical plate (8), and the inner support component is used to support the interior of the converter housing (2).

2. The anti-deformation hydraulic clamp for machining casting shell according to claim 1, characterized in that: A first processing feature (3) is provided in the middle of the converter housing (2), a second processing feature (4) is provided on one side of the converter housing (2), and a mounting base (5) is provided on the other side of the converter housing (2).

3. The anti-deformation hydraulic clamp for machining casting shell according to claim 2, characterized in that: The top of the lower clamp (6) is provided with an arc-shaped bottom groove (9), and the arc-shaped bottom groove (9) is adapted to be arranged at the bottom of the converter housing (2). The top of the lower clamp (6) is provided with a first clearance groove (10), and the middle of the arc-shaped bottom groove (9) is provided with a second clearance groove (11). The first clearance groove (10) is a semi-cylindrical groove and its position is adapted to be arranged at the second processing feature (4). The top of the lower clamp (6) is provided with a positioning base surface (12), and the positioning base surface (12) is adapted to be arranged at the mounting base (5). Limiting holes (23) are provided on both sides of the lower clamp (6).

4. The anti-deformation hydraulic clamp for machining casting shell according to claim 2, characterized in that: A pressure claw (13) is provided on one side of the upper clamp (7), the bottom of the pressure claw (13) is adapted to the converter housing (2), a threaded seat is provided on one side of the pressure claw (13), and a third clearance groove (14) is provided on the pressure claw (13), the third clearance groove (14) is a through groove and its position is adapted to the first processing feature (3).

5. The anti-deformation hydraulic clamp for machining casting shell according to claim 3, characterized in that: The inner support assembly comprises a sliding sleeve (15) fixedly mounted on the mounting vertical plate (8), a hydraulic rod (16) being slidably mounted inside the sliding sleeve (15), an auxiliary base (17) being fixedly mounted on one side of the hydraulic rod (16), a hydraulic interface (18) being fixedly mounted on one side of the auxiliary base (17), the hydraulic interface (18) being connected to the hydraulic rod (16), a limiting rod (19) being fixedly mounted on the other side of the auxiliary base (17), the limiting rod (19) being slidably connected to the limiting hole (23), an elastic hoop (21) being slidably mounted on the protruding end of the hydraulic rod (16), a steel wire rope (20) being fixedly mounted on one side of the elastic hoop (21), the other end of the steel wire rope (20) being fixedly connected to the fixed end of the hydraulic rod (16), and a guide head (22) being fixedly mounted on one side of the protruding end of the hydraulic rod (16).

6. The anti-deformation hydraulic clamp for machining casting shell according to claim 5, characterized in that: The diameter of one side of the guide head (22) is the same as that of the extended end of the hydraulic rod (16), a step is provided in the middle of the guide head (22), a slope is provided at the step, and a circular chamfer is provided on the other side of the guide head (22), and the diameter is larger than the diameter at the step.

7. The anti-deformation hydraulic clamp for machining casting shell according to claim 5, characterized in that: The elastic hoop (21) is in the shape of a hoop with a notch as a whole. The elastic hoop (21) is made of elastic metal. The outer ring of the elastic hoop (21) is provided with a high temperature resistant rubber layer.

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