Multi-station differential machining center clamp

Abstract

The utility model discloses a multi-station differential machining center clamp, which belongs to the technical field of clamps and comprises a machining bottom plate, a plurality of adjustable plates are mounted on the upper surface of the machining bottom plate, a plurality of positioning through grooves are arranged in the adjustable plates, and the bottom ends of positioning insertion rods in the positioning through grooves are embedded in positioning insertion grooves of the machining bottom plate. A plurality of clamping rods are arranged on the adjustable plate through supporting plates, and clamping plates are hinged to the top ends of the clamping rods; a workpiece body is placed above the adjustable plate, a plurality of reserved sliding ways are arranged in the workpiece body, reserved limiting holes are formed in the reserved sliding ways, and angular limiting pins are arranged in the reserved sliding ways. A plurality of sets of workpiece bodies can be clamped and fixed at the same time, the machining distance can be conveniently adjusted, and the machining efficiency is improved. And during machining, the main body can be slightly moved by a placement angle, so that the inner part is clamped, the machining angle is adjustable, and the periphery of a workpiece is conveniently machined.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a multi-station differential machining center fixture. Background Technology

[0002] The differential is an essential component of a car. Its function is to meet the requirement of different rotational speeds of the wheels on both sides when the car turns. A typical differential consists of planetary gears, planetary gear carriers (differential housing), half-shaft gears, and other parts. When machining the differential housing, a center jig is required to clamp and fix its cover.

[0003] Chinese Patent Publication No. CN201820702549.5, Publication Date: November 20, 2018, discloses a Chinese patent entitled "A Differential Lateral Hole Machining Fixture." The fixture body is connected to a receiving plate via screws and locating pins. The fixture body has radial cylindrical holes. The cylindrical holes and end faces of the fixture body achieve precise positioning of the differential. The locating pins are fixed to the end faces of the fixture body, and the circumferential rotation of the differential is restricted through the locating holes on the differential. The pull rod is fitted into the fixture via a shaft hole. On the body, one end of the pull rod is fixed with a pressure block by a pin. A compression spring is installed on the cylinder of the pull rod between the pressure block and the clamping body. The other end of the pull rod is connected to a locking nut by a thread. When the locking nut is tightened, the pressure block presses against the flange end face of the differential, and the differential is positioned and clamped. When using this device, only a single differential housing can be clamped and fixed. Two sets of differential housings need to be installed in the fixture twice for clamping and processing. Multiple installations and disassemblies consume a lot of time, increase labor costs, and reduce the efficiency of fixture processing. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-station differential machining center fixture, which uses several adjustable plates to simultaneously clamp and fix several groups of workpieces, resulting in stable clamping, simple operation, and improved machining efficiency.

[0005] A further objective of this invention is to enable the main body to be slightly moved and placed at an adjustable angle during processing by setting a reserved slide and angular limiting pin, thereby clamping the interior and facilitating the processing of the outer periphery of the workpiece.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-station differential machining center fixture, comprising a machining base plate, wherein a plurality of adjustable plates are mounted on the upper surface of the machining base plate, and a plurality of positioning through slots are provided in the adjustable plates, wherein the bottom end of a positioning rod in the positioning through slot is embedded in a positioning slot in the machining base plate; a plurality of clamping rods are provided on the adjustable plates via a support plate, and clamping plates are hinged to the top ends of the clamping rods; a workpiece body is placed on top of the adjustable plates, and a plurality of reserved slides are provided inside the workpiece body, wherein reserved limiting holes are opened inside the reserved slides, and angular limiting pins are provided inside the reserved slides.

[0007] Preferably, the upper surface of the machining base plate is provided with a number of equally spaced positioning slots. There are six sets of positioning slots. The equally spaced positioning slots provide a stable positioning reference for the adjustable plate, ensuring the structural accuracy and reliability of the fixture. The design of six sets of positioning slots can meet various machining needs, improving the versatility and flexibility of the fixture.

[0008] Preferably, the bottom end of the positioning rod passes through the positioning slot and is embedded in the positioning slot, which in turn passes through the adjustable plate. Two sets of adjustable plates are provided, allowing the positioning rod to be selectively embedded in either positioning slot. This enables the spacing of the adjustable plates on the machining base plate to be adjusted according to machining requirements. Adjustment requires first removing the positioning rod from the positioning slot, then moving the adjustable plate to the desired position on the machining base plate, and finally inserting the positioning rod back into the positioning slot for fixation. This structure facilitates easy adjustment of the machining spacing. This adjustable spacing design allows the fixture to adapt to workpieces with different machining requirements, improving the fixture's adaptability and flexibility, and reducing the additional costs and time associated with changing fixtures.

[0009] Preferably, the adjustable plate has several support plates fixedly mounted on its upper surface, arranged in a ring. There are three sets of support plates, each located outside one of the three pre-drilled positioning holes on the workpiece body. These three support plates are symmetrically arranged in a ring around the workpiece body. The ring-shaped arrangement of the support plates ensures even distribution of clamping force, guaranteeing the stability of the workpiece body during processing and preventing processing errors caused by uneven local force distribution, thereby improving processing accuracy.

[0010] Preferably, the clamping plate has a downward-pointing insert at one end near the workpiece body, which inserts into the positioning hole of the workpiece body. The six sets of clamping plates on the machining base plate can simultaneously clamp and fix two sets of workpiece bodies. During clamping, the clamping plates on the clamping rods need to be flipped over to be above the workpiece body, and the inserts at the bottom of the clamping plates are embedded in the pre-drilled positioning holes on the workpiece body, thereby achieving stable clamping of the workpiece body. This structure improves machining efficiency through multi-station clamping. Through the cooperation of the inserts and positioning holes, the clamping plates can quickly and accurately fix the workpiece body, reducing clamping time and improving clamping efficiency.

[0011] Preferably, several pre-reserved limiting holes are arranged opposite each other, and the bottom end of the angular limiting pin is embedded in the pre-reserved limiting holes. Two pre-reserved slides are provided. When the workpiece body is placed, its placement angle can be fixed by the angular limiting pins. During processing, the workpiece body can be slightly moved at its placement angle. To move it, the angular limiting pins must first be removed from the pre-reserved limiting holes, then the workpiece body is rotated, and finally locked in place using the angular limiting pins. This structure allows for internal clamping, facilitating processing of the workpiece body's outer perimeter. This structure also enables adjustable processing angles. The design of the pre-reserved slides and angular limiting pins allows the workpiece body to adjust its angle as needed during processing, thus achieving multi-angle processing. This adjustable processing angle design not only improves processing flexibility but also meets the processing requirements of complex-shaped workpieces, expanding the applicability of the fixture.

[0012] Preferably, the reserved limiting block is curved racetrack-shaped, and the angular limiting pin can be removed from the reserved limiting hole. The curved racetrack-shaped design provides a larger adjustment range for the angular limiting pin, making the angle adjustment of the workpiece body more flexible, while ensuring the stability and reliability of the limiting pin.

[0013] Preferably, protective baffles are fixedly connected to both sides of the upper surface of the machining base plate. The protective baffles can effectively prevent chips and liquids generated during machining from splashing outside the fixture, protecting the safety of operators, reducing pollution to the machining environment, and maintaining the cleanliness of the machining equipment.

[0014] Preferably, the adjustable plate and the support plate are fixedly connected by mounting bolts. This bolted connection makes the connection between the adjustable plate and the support plate more secure, while also facilitating disassembly and maintenance, thus improving the service life and maintenance efficiency of the fixture.

[0015] Preferably, several clamping plates are arranged in a ring above the adjustable plate. There are three clamping plates in total, arranged symmetrically in a ring around the outer side of the workpiece body. This symmetrical arrangement of the clamping plates in a ring can apply clamping force evenly, ensuring the stability of the workpiece body during processing and avoiding deformation or processing errors caused by uneven clamping force, thereby improving processing accuracy and quality.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a multi-station differential machining center fixture. By setting several adjustable plates, it can simultaneously clamp and fix several groups of workpiece bodies, and facilitates adjustment of the machining spacing, achieving stable clamping, simple operation, and improved machining efficiency. During machining, the main body can be slightly moved at its placement angle, achieving internal clamping and facilitating machining of the outer perimeter of the workpiece, thus realizing adjustable machining angles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Figure 3 This is a top view of a partial structural diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the processing base plate of this utility model.

[0021] Reference numerals in the attached drawings: 1. Machining base plate; 2. Clamping rod; 3. Support plate; 4. Clamping plate; 5. Workpiece body; 6. Protective baffle; 7. Mounting bolt; 8. Reserved limiting hole; 9. Positioning rod; 10. Reserved slide rail; 11. Angular limiting pin; 12. Positioning through groove; 13. Positioning slot; 14. Adjustable plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the field of modern machining, differentials are key components in many products such as automobiles and construction machinery, and their machining accuracy and efficiency directly affect the performance and quality of the final product. Traditional differential machining fixtures are gradually revealing many shortcomings when facing increasing production demands and complex machining processes.

[0024] like Figure 1 The multi-station differential machining center fixture is based on a machining base plate 1, which provides a stable mounting platform for other components. Several adjustable plates 14 are mounted on the upper surface of the machining base plate 1; in this embodiment, two are preferred. These adjustable plates 14 can be arbitrarily adjusted in spacing and are key components for achieving the fixture's multi-functionality. The upper surface of the machining base plate 1 has six sets of equally spaced positioning slots 13. The equally spaced distribution of the positioning slots 13 provides a precise positioning reference for the installation of the adjustable plates 14, ensuring the structural accuracy and reliability of the fixture.

[0025] like Figure 4 As shown, Figure 4As shown, the adjustable plate 14 has several positioning slots 12 inside. These positioning slots 12 are evenly distributed along the length of the adjustable plate 14 and extend through the entire thickness of the adjustable plate 14. The design of the positioning slots 12 provides a channel for the movement and fixation of the positioning rod 9, allowing the positioning rod 9 to be flexibly inserted and removed at different positions. After the bottom end of the positioning rod 9 passes through the positioning slot 12, it is embedded into the positioning slot 13 on the machining base plate 1, thereby fixing the adjustable plate 14. There are usually two sets of adjustable plates 14, located on both sides of the machining base plate 1. The positioning rod 9 can be selectively embedded in either positioning slot 13. This design allows the spacing of the adjustable plates 14 on the machining base plate 1 to be adjusted according to processing requirements. In actual operation, to adjust the spacing of the adjustable plate 14, the operator only needs to first pull the positioning rod 9 fixed on the adjustable plate 14 out of the positioning slot 13, then smoothly move the adjustable plate 14 to the appropriate position on the machining base plate 1, and finally insert the positioning rod 9 back into the positioning slot 13 to fix it. This adjustable spacing design greatly enhances the adaptability of the fixture, can meet the machining requirements of differential workpiece bodies 5 of different sizes, reduces the additional costs and time caused by changing fixtures, and improves production efficiency.

[0026] like Figure 1 and Figure 2 As shown, several clamping rods 2 are provided on the adjustable plate 14 via support plates 3. These clamping rods 2 are evenly arranged along the distribution direction of the support plates 3, forming a complete clamping system. The top ends of the clamping rods 2 are connected to clamping plates 4 by hinges. Several support plates 3 are fixedly provided on the upper surface of the adjustable plate 14. These support plates 3 are arranged in a ring and evenly distributed around the central axis of the workpiece body 5. Specifically, there are three sets of support plates 3, located outside the three positioning holes reserved in the workpiece body 5. This design allows the clamping force to be evenly distributed around the periphery of the workpiece body 5, forming a symmetrical clamping structure. The three sets of support plates 3 are circumferentially symmetrically distributed around the outside of the workpiece body 5, which can not only effectively balance the clamping force, but also ensure that the workpiece body 5 maintains a stable position during processing, avoiding displacement or vibration caused by uneven force. This ring-shaped support plate 3 design has multiple advantages. It can evenly distribute the clamping force, ensuring that the workpiece body 5 will not deform or be damaged due to excessive local force during processing. The annular symmetrical structural design effectively counteracts the radial and tangential forces generated during processing, thereby further improving the stability of the workpiece body 5. Furthermore, this design can adapt to workpiece bodies 5 of different shapes and sizes; by adjusting the position of the support plate 3 and the length of the clamping rod 2, it achieves compatible clamping of various workpieces.

[0027] like Figure 1 and Figure 2As shown, the clamping plate 4 has a downward-pointing insert at one end near the workpiece body 5, which inserts into the positioning hole of the workpiece body 5. The six sets of clamping plates 4 on the machining base plate 1 can simultaneously clamp and fix two sets of workpiece bodies 5. In the actual clamping process, the operator needs to flip the clamping plate 4 on the clamping rod 2 above the workpiece body 5 so that the insert at the bottom of the clamping plate 4 is accurately embedded in the positioning hole reserved on the workpiece body 5, thereby achieving stable clamping of the workpiece body 5. Through the tight cooperation between the insert and the positioning hole, the clamping plate 4 can quickly and accurately fix the workpiece body 5, greatly reducing the clamping time and improving the clamping efficiency. The arrangement of multiple clamping plates 4 and their circumferentially symmetrical arrangement above the adjustable plate 14 further ensures that the clamping force applied to the workpiece body 5 is uniform, avoiding deformation of the workpiece body 5 or displacement during processing due to uneven clamping force, thereby improving the processing accuracy and quality.

[0028] like Figure 3 As shown, the workpiece body 5 has several reserved slides 10 inside, which are distributed along a specific direction of the workpiece body 5, providing space for the angular limiting pins 11 to slide. Reserved limiting holes 8 are provided inside the reserved slides 10 to fix the position of the angular limiting pins 11. The angular limiting pins 11 are installed inside the reserved slides 10, and through their cooperation with the reserved limiting holes 8, precise control and fixation of the angle of the workpiece body 5 are achieved. In this embodiment, two reserved slides 10 are preferably arranged opposite each other. This symmetrical design ensures that the workpiece body 5 remains balanced and stable during placement and processing. When the workpiece body 5 is placed on the fixture, the operator can fix its placement angle using the angular limiting pins 11, ensuring that the workpiece body 5 will not shift or wobble in its initial position, thus providing a stable foundation for subsequent processing.

[0029] During processing, if it is necessary to adjust the machining angle of the workpiece body 5, the operator can remove the angular limiting pin 11 from the current reserved limiting hole 8 to release the angle restriction on the workpiece body 5. Then, according to the specific machining requirements, the operator can manually rotate the workpiece body 5 to adjust it to the required angle. After the workpiece body 5 has been rotated to the appropriate angle, the operator can reinsert the angular limiting pin 11 into the corresponding reserved limiting hole 8 to lock and fix the angle of the workpiece body 5. This angle adjustment method is simple and easy to operate, and can quickly achieve precise adjustment of the angle of the workpiece body 5, meeting the requirements of different machining processes.

[0030] The reserved limiting block adopts a curved racetrack-shaped design. This unique shape is not only aesthetically pleasing but also functionally important. The racetrack-shaped design provides a wider adjustment range for the angular limiting pin 11, making the angle adjustment of the workpiece body 5 more flexible and diverse. At the same time, the curved racetrack-shaped structure can effectively disperse the stress generated during processing, enhancing the stability and reliability of the angular limiting pin 11 during operation and preventing the limiting pin from loosening or failing due to prolonged use or external forces. This design fully considers various complex situations in actual processing, ensuring the durability and accuracy of the fixture under long-term high-intensity use.

[0031] like Figure 1 As shown, protective baffles 6 are fixedly connected to both sides of the upper surface of the machining base plate 1. The protective baffles 6 play a crucial role in the machining process, effectively preventing chips and liquids generated during machining from splashing outside the fixture. Splashing chips can injure operators and contaminate the machining environment, affecting the normal operation and lifespan of the machining equipment. The presence of the protective baffles 6 provides safety for operators, reduces pollution to the machining environment, maintains the cleanliness of the machining equipment, and ensures the smooth progress of the machining process.

[0032] like Figure 2 As shown, the adjustable plate 14 and the support plate 3 are fixedly connected by mounting bolts 7. The bolted connection method has many advantages. It makes the connection between the adjustable plate 14 and the support plate 3 more robust and reliable, capable of withstanding various forces and vibrations generated during processing. At the same time, the bolted connection facilitates disassembly and maintenance. When a component of the fixture is damaged or needs replacement, the operator can easily use tools to remove the bolts for repair or replacement, greatly improving the service life and maintenance efficiency of the fixture.

[0033] Work process.

[0034] When using this device, the workpiece body 5 must first be placed between the three sets of clamping plates 4. During placement, it is essential to ensure the workpiece body 5 is in a stable position to avoid affecting subsequent processing due to instability. After placement, the operator can flip the clamping plates 4 over the workpiece body 5 to clamp and fix it in place. The design of the clamping plates 4 allows them to fit tightly against the surface of the workpiece body 5, ensuring that it will not shift or loosen during processing, thereby guaranteeing processing accuracy and stability.

[0035] During processing, if the processing position of the workpiece body 5 needs to be adjusted, this can be achieved by adjusting the adjustable plate 14. The spacing adjustment function of the adjustable plate 14 can meet the processing requirements of different workpieces. During adjustment, the operator first needs to pull the positioning rod 9 fixed on the adjustable plate 14 out of the positioning slot 13 to release the fixed state of the adjustable plate 14. Then, the operator can move the adjustable plate 14 to a suitable position on the processing base plate 1 according to the processing requirements. After moving it into place, the positioning rod 9 is reinserted to fix the adjustable plate 14 in the new position. This design allows the device to adapt to workpieces of different sizes and shapes, improving the versatility and flexibility of the device.

[0036] During processing, the angle of the workpiece body 5 can be slightly adjusted as needed. To adjust, the operator first removes the angular limiting pin 11 from the pre-drilled limiting hole 8 to release the angle restriction on the workpiece body 5. Then, the operator can rotate the workpiece body 5 to adjust it to the desired angle. After adjustment, the angular limiting pin 11 is reinserted to lock and fix the angle of the workpiece body 5. This angle adjustment function allows the device to meet the needs of different processing angles, further improving the flexibility and adaptability of processing.

[0037] The device's structural design enables effective clamping of the workpiece body 5 inside, while facilitating machining of the workpiece body 5's outer perimeter. The insert rod at the bottom of the clamping plate 4 is embedded in a pre-drilled positioning hole on the workpiece body 5. This design ensures stable clamping of the workpiece body 5, preventing displacement or shaking during machining. Furthermore, the device's multi-station clamping design allows for the simultaneous fixing of multiple workpiece bodies 5, significantly improving machining efficiency and making it particularly suitable for mass production or applications requiring high-precision machining.

[0038] In summary, this device, through the synergistic effect of multiple structures such as the clamping plate 4, the adjustable plate 14, and the angular limiting pin 11, achieves stable clamping, flexible adjustment, and efficient processing of the workpiece body 5. Its design not only improves processing accuracy and stability but also enhances the device's versatility and adaptability, enabling it to meet various complex processing needs and significantly improve production efficiency.

[0039] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A multi-station differential machining center fixture, comprising a machining base plate, characterized in that, Several adjustable plates are installed on the upper surface of the machining base plate. Several positioning slots are provided in the adjustable plates. The bottom end of the positioning rod in the positioning slot is embedded in the positioning slot of the machining base plate. The adjustable plate is provided with several clamping rods via a support plate, and the top of the clamping rods is hinged to a clamping plate; The workpiece body is placed on top of the adjustable plate. Several reserved slides are provided inside the workpiece body. Reserved limiting holes are opened inside the reserved slides, and angular limiting pins are provided inside the reserved slides.

2. The multi-station differential machining center fixture according to claim 1, characterized in that, The upper surface of the machining base plate is provided with several positioning slots that are evenly spaced.

3. The multi-station differential machining center fixture according to claim 2, characterized in that, The bottom end of the positioning rod passes through the positioning groove and is embedded in the positioning slot. The positioning groove passes through the adjustable plate.

4. The multi-station differential machining center fixture according to claim 1, characterized in that, Several support plates are fixedly installed on the upper surface of the adjustable plate, and the support plates are arranged in a ring.

5. A multi-station differential machining center fixture according to claim 1, characterized in that, The clamping plate has a downward-pointing insert at one end near the workpiece body, which is inserted into the positioning hole of the workpiece body.

6. A multi-station differential machining center fixture according to claim 1, characterized in that, Several pre-reserved limiting holes are set opposite each other, and the bottom end of the angular limiting pin is embedded in the pre-reserved limiting hole.

7. A multi-station differential machining center fixture according to claim 1 or 6, characterized in that, The reserved limit block is curved like a racetrack, and the angular limit pin can be removed from the reserved limit hole.

8. A multi-station differential machining center fixture according to claim 1 or 2, characterized in that, Protective baffles are fixedly connected to both sides of the upper surface of the processing base plate.

9. A multi-station differential machining center fixture according to claim 1 or 4, characterized in that, The adjustable plate and the support plate are fixedly connected by mounting bolts.

10. A multi-station differential machining center fixture according to claim 1 or 5, characterized in that, Several clamping plates are arranged in a ring above the adjustable plate.

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