A hydraulic fixture for front axle machining

Abstract

The utility model provides a hydraulic clamp for front axle processing, and the both ends of front axle along the length direction are equipped with axle hole, and the hydraulic clamp includes: mounting seat is equipped with the locating post, and the locating post is used for with the cooperation end axle hole of front axle cooperation, adjust support base is used for supporting the free end of front axle, hydraulic clamping mechanism is used for cooperation end clamping fixed. The automatic clamping of front axle and locating post cooperation end is realized through the hydraulic power of hydraulic clamping mechanism, and it is not necessary to manually press the plate, and the nut is rotated with wrench, can greatly shorten the clamping time, and the production efficiency is improved. Moreover, the pressure of hydraulic clamping mechanism is controlled by hydraulic system, and the output force is stable and can be accurately adjusted, is not affected by the individual difference of operating personnel, can guarantee the pressure of each clamping, improves the product quality stability. The cooperation of adjust support base and locating post realizes the horizontal state of front axle, ensures that the relative position of tool and workpiece in the processing process accords with the preset process parameter.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a hydraulic fixture for front axle machining. Background Technology

[0002] Currently, the existing machining process for automotive front axles typically involves manual clamping in machining centers. However, this manual clamping method requires manually placing a pressure plate, using a wrench to tighten the clamping nut, and then using a small wrench to tighten the process pin. The existing manual clamping method results in workpiece clamping time exceeding machine processing time, leading to low production efficiency. Furthermore, inconsistent clamping force applied by different operators causes instability, impacting product quality. Summary of the Invention

[0003] This utility model provides a hydraulic clamp for front axle machining, which solves the problems of low production efficiency caused by the existing manual clamping method for automotive front axle machining, where the clamping time is longer than the machine processing time, and the clamping force is unstable due to different operators applying different clamping forces, which affects product quality.

[0004] This utility model provides a hydraulic clamp for machining a front axle, wherein the front axle has shaft holes at both ends along its length. The hydraulic clamp comprises:

[0005] Mounting base, the mounting base is provided with a positioning post, the positioning post is used to cooperate with the shaft hole at one end of the front axle along the length direction, so as to position and install one end of the front axle on the mounting base;

[0006] Adjust the support base to support the free end of the front axle, so as to cooperate with the positioning column to keep the front axle in a horizontal position;

[0007] A hydraulic clamping mechanism is provided on the mounting base, and the hydraulic clamping mechanism is used to clamp and fix the front axle and the mating end of the positioning column.

[0008] In one embodiment of the present invention, a process pin is further included. The process pin is used for transitional engagement with the mating end shaft hole. One end of the process pin along the axial direction abuts against the positioning post, and the other end abuts against the hydraulic clamping mechanism.

[0009] In one embodiment of this utility model, the hydraulic clamping mechanism includes a rotary telescopic component, a pressure block, and a clamping component; the rotary telescopic component is connected to the mounting base, the pressure block includes a connecting end and a pressing end, the connecting end is connected to the rotary telescopic component, and the clamping component is installed on the pressing end. The rotary telescopic component is used to drive the pressure block to rotate, so that the pressing end rotates to align with the mating end, and then drives the pressing end to abut against the mating end around the end face of the shaft hole; the clamping component is used to abut against the end of the process pin axially away from the positioning post.

[0010] In one embodiment of this utility model, a through hole is provided on the pressing end, and the telescopic shaft of the clamping component passes through the through hole and abuts against the process pin.

[0011] In one embodiment of the present invention, the pressing end is provided with a limiting groove around the through hole, and the limiting groove is used to engage with the end of the process pin that is axially away from the positioning post.

[0012] In one embodiment of this utility model, the rotating telescopic component is a hydraulic corner cylinder; the clamping component is a hydraulic cylinder.

[0013] In one embodiment of the present invention, an auxiliary rod is further included. The auxiliary rod is used to cooperate with the free end shaft hole of the front axle. The auxiliary rod passes through the free end shaft hole of the front axle and abuts against the adjusting support.

[0014] In one embodiment of the present invention, the adjusting support base includes support plates arranged opposite to each other, and the two ends of the auxiliary rod along the axial direction respectively abut against the tops of the two support plates.

[0015] In one embodiment of the present invention, the top of the support plate is provided with an adjustment component, which is connected to the top of the support plate by bolts, and the adjustment component is used to adjust the height of the free end of the front axle.

[0016] In one embodiment of the present invention, a base plate is also included, and the mounting base and the adjusting support base are both disposed on the base plate. The distance between the mounting base and the adjusting support base is less than the length of the front axle.

[0017] The beneficial effects of this utility model are as follows: This utility model proposes a hydraulic clamp for front shaft machining. Through the hydraulic power of the hydraulic clamping mechanism, the front shaft and the mating end of the positioning column are automatically clamped, eliminating the need for manual clamping plates and wrench-operated nuts. This significantly shortens clamping time and reduces the proportion of non-machining time, thereby improving production efficiency. Furthermore, the clamping force of the hydraulic clamping mechanism is controlled by the hydraulic system, providing stable and precisely adjustable output force, unaffected by individual operator differences. This ensures consistent clamping force for each clamping, improving product quality stability. Adjusting the fit between the support base and the positioning column achieves a horizontal front shaft, ensuring that the relative position of the tool and workpiece conforms to preset process parameters during machining. This application simplifies the clamping operation process through hydraulic drive, shortening the workpiece clamping and unclamping time. The hydraulic system provides stable and controllable clamping force, avoiding fluctuations in clamping force due to differences in manual operation, reducing workpiece displacement or deformation during machining, and ensuring product dimensional accuracy and consistency. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0019] In the attached diagram:

[0020] Figure 1 A schematic diagram of the structure of a hydraulic fixture for front axle machining provided in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the front axle and the hydraulic fixture used for front axle machining provided in one embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of a pressure block provided in an embodiment of the present invention.

[0023] The attached figures are labeled as follows:

[0024] Front axle 1, shaft hole 101, mounting base 2, positioning post 201, adjusting support base 3, support plate 301, adjusting component 302, hydraulic clamping mechanism 4, rotating telescopic component 401, pressure block 402, connecting end 402a, pressing end 402b, through hole 402c, limiting groove 402d, clamping component 403, process pin 5, auxiliary rod 6, base plate 7. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0028] Please combine Figures 1 to 3 As shown, this utility model provides a hydraulic clamp for front axle machining.

[0029] In an exemplary embodiment of this application, a hydraulic clamp for machining a front axle 1 is provided, wherein both ends of the front axle 1 along its length are provided with shaft holes 101, characterized in that the hydraulic clamp comprises:

[0030] Mounting base 2, the mounting base 2 is provided with positioning pin 201, the positioning pin 201 is used to cooperate with the shaft hole 101 at one end of the front axle 1 along the length direction, so as to position one end of the front axle 1 on the mounting base 2;

[0031] Adjust the support 3 to support the free end of the front axle 1, so as to cooperate with the positioning column 201 to make the front axle 1 horizontal;

[0032] The hydraulic clamping mechanism 4 is mounted on the mounting base 2. The hydraulic clamping mechanism 4 is used to clamp and fix the mating end of the front axle 1 and the positioning column 201.

[0033] In this embodiment, the shaft hole 101 at one end of the front axle 1 along its length is engaged with the positioning pin 201 on the mounting base 2. This engagement restricts the radial displacement of one end of the front axle 1 along the shaft hole 101, thus completing the initial positioning of one end of the front axle 1. The support base 3 is adjusted to support the other end of the front axle 1 (i.e., the free end). By adjusting the support base 3 and the support height of the free end, in conjunction with the positioning height of the positioning pin 201, the front axle 1 is kept horizontal, preventing posture deviations caused by the free end being suspended or tilted. The hydraulic clamping mechanism 4 on the mounting base 2 is activated to apply a stable clamping force to the engagement end of the front axle 1 and the positioning pin 201, restricting the axial displacement of the front axle 1 along the shaft hole 101. This clamps and fixes the front axle 1 in a preset machining posture, ensuring no displacement or shaking occurs during machining. After the first end of the front axle 1 is machined, the above steps are repeated to machine the other end (i.e., the previously machined free end). In this embodiment, the hydraulic clamping mechanism 4 replaces the manual operation of traditional manual clamps, enabling rapid clamping and releasing of the front shaft 1, significantly shortening clamping time and increasing production cycle time. Furthermore, the clamping force is precisely controlled by the hydraulic system, providing a stable and adjustable output force unaffected by individual operator differences, thus avoiding processing deviations caused by clamping force fluctuations. The cooperation between the positioning column 201 and the adjusting support 3 ensures that the front shaft 1 is always in a horizontal state, providing a uniform reference posture for processing and reducing product quality fluctuations caused by inconsistent clamping postures.

[0034] In an exemplary embodiment of this application, a process pin 5 is also included. The process pin 5 is used for transitional engagement with the mating end shaft hole 101. One end of the process pin 5 abuts against the positioning post 201 along the axial direction, and the other end abuts against the hydraulic clamping mechanism 4.

[0035] In this embodiment, the process pin 5 is transitionally fitted with the shaft hole 101 at the mating end of the front shaft 1, eliminating the gap between the shaft hole 101 and the positioning post 201. This restricts the rotational freedom and radial wobble of the front shaft 1 around the positioning post 201, forming a double constraint with the coarse positioning of the positioning post 201. Furthermore, one end of the process pin 5 abuts against the positioning post 201 along the axial direction, and the other end abuts against the hydraulic clamping mechanism 4, forming rigid supports at both ends. This makes it less likely for the mating end of the front shaft 1 to loosen when subjected to radial or axial cutting forces, significantly improving the overall rigidity of the clamping system.

[0036] In an exemplary embodiment of this application, the hydraulic clamping mechanism 4 includes a rotary telescopic component 401, a pressure block 402, and a clamping component 403. The rotary telescopic component 401 is connected to the mounting base 2. The pressure block 402 includes a connecting end 402a and a pressing end 402b. The connecting end 402a is connected to the rotary telescopic component 401. The clamping component 403 is installed on the pressing end 402b. The rotary telescopic component 401 is used to drive the pressure block 402 to rotate, so that the pressing end 402b rotates to align with the mating end, and then drives the pressing end 402b to abut against the mating end around the end face of the shaft hole 101. The clamping component 403 is used to abut against the end of the process pin 5 axially away from the positioning post 201.

[0037] In this embodiment, in the initial state, the pressing end 402b of the pressure block 402 is rotated to a clearance position under the drive of the rotary telescopic component 401 to avoid interfering with the assembly of the shaft hole 101 of the front shaft 1 and the positioning pin 201. After the front shaft 1 is initially positioned by the positioning pin 201 and the process pin 5, the rotary telescopic component 401 drives the pressure block 402 to rotate, so that the pressing end 402b rotates to align with the mating end of the front shaft 1. After rotating to the position, the rotary telescopic component 401 switches to linear telescopic mode, driving the pressing end 402b of the pressure block 402 to move towards the mating end until the end face of the pressing end 402b abuts against the end face of the mating end of the front shaft 1, thereby achieving the initial pressing of the mating end of the front shaft 1. While the clamping end 402b abuts against the mating end, the clamping component 403 installed on the clamping end 402b is activated. The telescopic shaft of the clamping component 403 abuts against the end of the process pin 5 away from the positioning post 201. The process pin 5 is further clamped by hydraulic driving force, and the clamping force is transmitted to the front shaft 1 through the process pin 5 to ensure that the front shaft 1 does not move during the processing.

[0038] In an exemplary embodiment of this application, a through hole 402c is provided on the clamping end 402b, and the telescopic shaft of the clamping component 403 passes through the through hole 402c and abuts against the process pin 5.

[0039] In this embodiment, by providing a through hole 402c in the pressing end 402b for the telescopic shaft of the clamping component 403 to pass through, the clamping component 403 can be installed on the end face of the pressing end 402b away from the mating end, thus avoiding the installation position of the clamping component 403 from affecting the mating effect between the end face of the pressing end 402b and the mating end.

[0040] In an exemplary embodiment of this application, the pressing end 402b is provided with a limiting groove 402d around the through hole 402c. The limiting groove 402d is used to engage with the end of the process pin 5 that is axially away from the positioning post 201.

[0041] In this embodiment, while the telescopic shaft abuts against the process pin 5, the end of the process pin 5 away from the positioning post 201 is embedded in the limiting groove 402d of the clamping end 402b. Through the concave-convex fit, the radial wobble of the process pin 5 is further restricted. Through the concave-convex fit between the limiting groove 402d and the process pin 5, the clamping force is transmitted to the process pin 5 through a larger contact area. Compared with the point contact force transmission of the telescopic shaft alone, this ensures that the clamping force is more evenly distributed to the mating end of the front shaft 1, reducing vibration during the processing.

[0042] In an exemplary embodiment of this application, the rotating telescopic component 401 is a hydraulic corner cylinder; the clamping component 403 is a hydraulic cylinder.

[0043] In this embodiment, both the hydraulic angle cylinder and the hydraulic cylinder are driven by hydraulic power, replacing the manual operation of tightening nuts with a wrench in manual clamping. This automates the entire process of rotation avoidance, alignment, clamping, and holding, significantly reducing operator involvement. The rotation angle and extension stroke of the hydraulic angle cylinder are precisely controlled by mechanical limits or hydraulic parameters to ensure that the rotation alignment and clamping position of the pressure block 402 are completely consistent each time, avoiding visual errors or force deviations caused by manual operation. This ensures that the clamping force of the front shaft 1 is uniform and consistent, improving product quality stability.

[0044] In an exemplary embodiment of this application, an auxiliary rod 6 is also included. The auxiliary rod 6 is used to cooperate with the free end shaft hole 101 of the front axle 1. The auxiliary rod 6 passes through the free end shaft hole 101 of the front axle 1 and abuts against the adjusting support 3.

[0045] In this embodiment, the adjusting support 3 indirectly transmits the supporting force to the free end of the front axle 1 through the supporting auxiliary rod 6. Together with the positioning column 201 for positioning the mating end, they maintain the horizontal state of the front axle 1 and prevent the free end from sagging or tilting due to gravity or processing vibration.

[0046] In an exemplary embodiment of this application, the adjusting support 3 includes support plates 301 disposed opposite to each other, and the two ends of the auxiliary rod 6 along the axial direction respectively abut against the top of the two support plates 301.

[0047] In an exemplary embodiment of this application, the top of the support plate 301 is provided with an adjustment component 302, which is connected to the top of the support plate 301 by bolts. The adjustment component 302 is used to adjust the height of the free end of the front axle 1.

[0048] In this embodiment, the adjusting component 302 is a pad, which is bolted to the top of the support plate 301. The height of the free end of the front axle 1 can be adjusted by changing the thickness of the pad, thereby ensuring that the front axle 1 is in a horizontal state for processing.

[0049] In an exemplary embodiment of this application, a base plate 7 is also included, and the mounting base 2 and the adjusting support base 3 are both disposed on the base plate 7. The distance between the mounting base 2 and the adjusting support base 3 is less than the length of the front axle 1.

[0050] In this embodiment, the base plate 7 serves as the basic load-bearing component of the fixture, providing a unified mounting reference surface for the mounting base 2 and the adjusting support base 3. The distance between the mounting base 2 and the adjusting support base 3 is less than the length of the front axle 1, ensuring that when the front axle 1 is placed, the mating end can mate with the positioning column 201, and the free end can be supported by the adjusting support base 3, thus avoiding the front axle 1 being suspended due to excessive distance or the front axle 1 being unable to be placed due to insufficient distance.

[0051] The working principle involves using the hydraulic power of the hydraulic clamping mechanism 4 to automatically clamp the front shaft 1 and the mating end of the positioning column 201. This eliminates the need for manual clamping plates and wrench-operated nuts, significantly reducing clamping time and the proportion of non-processing time, thereby improving production efficiency. Furthermore, the clamping force of the hydraulic clamping mechanism 4 is controlled by the hydraulic system, providing stable and precisely adjustable output force, unaffected by individual operator differences. This ensures consistent clamping force for each clamping, improving product quality stability. Adjusting the fit between the support base 3 and the positioning column 201 ensures the front shaft 1 is horizontal, guaranteeing that the relative position of the tool and workpiece conforms to preset process parameters during machining. This application simplifies the clamping operation process through hydraulic drive, shortening workpiece clamping and unclamping time. The hydraulic system provides stable and controllable clamping force, avoiding fluctuations in clamping force due to differences in manual operation, reducing workpiece displacement or deformation during machining, and ensuring product dimensional accuracy and consistency.

[0052] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A hydraulic clamp for machining a front axle, wherein the front axle has shaft holes at both ends along its length, characterized in that, The hydraulic clamp includes: Mounting base, the mounting base is provided with a positioning post, the positioning post is used to cooperate with the shaft hole at one end of the front axle along the length direction, so as to position and install one end of the front axle on the mounting base; Adjust the support base to support the free end of the front axle, so as to cooperate with the positioning column to keep the front axle in a horizontal position; A hydraulic clamping mechanism is provided on the mounting base, and the hydraulic clamping mechanism is used to clamp and fix the front axle and the mating end of the positioning column.

2. The hydraulic clamp for front axle machining according to claim 1, characterized in that: It also includes a process pin, which is used to transition fit with the mating end shaft hole. One end of the process pin abuts against the positioning post along the axial direction, and the other end abuts against the hydraulic clamping mechanism.

3. The hydraulic clamp for front axle machining according to claim 2, characterized in that: The hydraulic clamping mechanism includes a rotary telescopic component, a pressure block, and a clamping component. The rotary telescopic component is connected to the mounting base. The pressure block includes a connecting end and a pressing end. The connecting end is connected to the rotary telescopic component. The clamping component is installed on the pressing end. The rotary telescopic component drives the pressure block to rotate, causing the pressing end to rotate until it aligns with the mating end. Then, it drives the pressing end to abut against the mating end around the end face of the shaft hole. The clamping component abuts against the end of the process pin axially away from the positioning post.

4. The hydraulic clamp for front axle machining according to claim 3, characterized in that: The clamping end has a through hole, and the telescopic shaft of the clamping component passes through the through hole and abuts against the process pin.

5. The hydraulic clamp for front axle machining according to claim 4, characterized in that: The clamping end has a limiting groove around the through hole, and the limiting groove is used to engage with the end of the process pin that is axially away from the positioning post.

6. The hydraulic clamp for front axle machining according to claim 3, characterized in that: The rotating and telescopic component is a hydraulic corner cylinder; the clamping component is a hydraulic cylinder.

7. The hydraulic clamp for front axle machining according to claim 1, characterized in that: It also includes an auxiliary rod, which is used to engage with the free end shaft hole of the front axle, and the auxiliary rod passes through the free end shaft hole of the front axle and abuts against the adjusting support.

8. The hydraulic clamp for front axle machining according to claim 7, characterized in that: The adjusting support includes support plates arranged opposite each other, and the two ends of the auxiliary rod along the axial direction respectively abut against the tops of the two support plates.

9. The hydraulic clamp for front axle machining according to claim 8, characterized in that: The top of the support plate is provided with an adjustment component, which is connected to the top of the support plate by bolts. The adjustment component is used to adjust the height of the free end of the front axle.

10. The hydraulic clamp for front axle machining according to claim 1, characterized in that: It also includes a base plate, on which the mounting base and the adjusting support are both disposed, and the distance between the mounting base and the adjusting support is less than the length of the front axle.

Images