DP rack phase angle machining clamp

Abstract

The utility model belongs to the technical field of clamps, and discloses a DP rack phase angle machining clamp which comprises a carrier plate, the upper surface of the carrier plate is connected with an angle positioning plate and a tooth surface positioning and fixing block, and the tooth surface positioning and fixing block accommodates a DP rack. The angle positioning plate is provided with an assembly inclined plane and a via hole perpendicular to the assembly inclined plane, the assembly inclined plane of the angle positioning plate is provided with an air cylinder, an output shaft of the air cylinder is connected with a tooth surface positioning and pressing block, the tooth surface positioning and pressing block is located in the via hole and guided by the via hole, the tooth surface positioning and pressing block is connected with a pressing plate, and the air cylinder drives the pressing plate to press the tooth surface positioning and fixing block. High-precision clamping can be achieved only by guaranteeing the machining precision of the angle positioning plates, the structure is simpler, the cost is lower, when the phase angle of the DP rack changes, the angle positioning plates of different specifications can be selected to install the air cylinder and the tooth surface positioning pressing block, and the angles of the assembly slopes on the angle positioning plates of different specifications are different.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures, and in particular relates to a DP rack phase angle processing fixture. Background Art

[0002] In the automotive steering industry, DP-EPS (double pinion electric power steering) steering is widely used. Since the phase angle processing accuracy of the DP rack is too high, this puts high requirements on the phase angle processing fixture, while the price of imported positioning fixtures is too high and the cost investment is too large.

[0003] Therefore, a DP rack phase angle machining fixture is provided to solve the above problems. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a DP rack phase angle processing fixture.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] A DP rack phase angle processing fixture comprises a carrier plate, the upper surface of which is connected to an angle positioning plate and a tooth surface positioning and fixing block, and the tooth surface positioning and fixing block accommodates the DP rack;

[0007] The angle positioning plate is provided with an assembly bevel and a through hole perpendicular to the assembly bevel. The assembly bevel of the angle positioning plate is used to install a cylinder. The output shaft of the cylinder is connected to a tooth surface positioning and clamping block. The tooth surface positioning and clamping block is located in the through hole and guided by the through hole. The tooth surface positioning and clamping block is connected to a pressure plate. The cylinder drives the pressure plate to press against the tooth surface positioning and fixing block.

[0008] It is further defined that it also includes a base plate, the upper surface of which is fixedly connected to a slide rail, the slide rail is slidably connected to a slider, and the slider is fixedly connected to the carrier plate. Such a structural design facilitates the direct overall transfer of the carrier plate and various components on the carrier plate, especially before and after processing the DP rack, to realize the transfer of the DP rack between different workstations.

[0009] It is further defined that earrings are provided on both sides of the pressure plate, and rotating columns cooperating with the earrings are provided on both sides of the tooth surface positioning and clamping block. The pressure plate and the tooth surface positioning and clamping block are rotatably connected on both sides, and the tooth surface positioning and clamping block are connected by bolts. There are two bolts in total and they are symmetrically distributed about the axis of the rotating column. The ends of the bolts press the pressure plate tightly. With such a structural design, the pressure plate and the tooth surface positioning and clamping block are rotatably connected, so that the angle of the pressure plate can be adjusted. The bolts are distributed on both sides of the rotation axis, and pressing the pressure plate tightly can fix the circumferential position of the pressure plate.

[0010] It is further defined that both side surfaces of the tooth surface positioning and fixing block are connected to an extension tube, the end of the extension tube is fixedly connected to the side plate, the side plate is threadedly connected to the ejector pin, and the DP rack is clamped between the two ejector pins. Such a structural design, in order to fix the axial position of the DP rack, an ejector pin is arranged at each axial end of the DP rack, thereby maintaining the axial position of the DP rack by clamping the ejector pin.

[0011] The beneficial effects of the utility model: high-precision clamping can be achieved by only ensuring the processing accuracy of the angle positioning plate, the structure is simpler and the cost is lower. Specifically, the assembly bevel of the angle positioning plate determines the installation angle of the cylinder, the through hole is perpendicular to the assembly bevel, and the through hole cooperates with the tooth surface positioning and clamping block to determine the protruding angle of the tooth surface positioning and clamping block. By ensuring the processing accuracy of the angle positioning plate, the clamping accuracy requirement of the DP rack during the phase angle processing can be guaranteed. When the phase angle of the DP rack changes, angle positioning plates of different specifications can be selected to install the cylinder and the tooth surface positioning and clamping block, and the assembly bevel angles on angle positioning plates of different specifications are different. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0013] Figure 1 It is a structural schematic diagram of an embodiment of a DP rack phase angle processing fixture of the utility model;

[0014] Figure 2 It is a schematic structural diagram of a DP rack phase angle processing fixture embodiment of the utility model, in which the ejector pin clamps the DP rack;

[0015] The main component symbols are described as follows:

[0016] 1. Bottom plate;

[0017] 2. Slide rail;

[0018] 3. Slider;

[0019] 4. Carrier board;

[0020] 5. Angle positioning plate;

[0021] 6. Tooth surface positioning fixing block;

[0022] 7. Cylinder;

[0023] 8. Tooth surface positioning and clamping block;

[0024] 9. Press plate;

[0025] 10. Bolts;

[0026] 11. Extension tube;

[0027] 12. Side panels;

[0028] 13. Ejector pin;

[0029] 14. DP rack. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0031] like Figure 1-2 As shown, a DP rack phase angle processing fixture of the utility model includes a carrier plate 4, the upper surface of the carrier plate 4 is connected to an angle positioning plate 5 and a tooth surface positioning and fixing block 6, and the tooth surface positioning and fixing block 6 accommodates a DP rack 14;

[0032] The angle positioning plate 5 is provided with an assembly bevel and a through hole perpendicular to the assembly bevel. The assembly bevel of the angle positioning plate 5 is installed with a cylinder 7. The output shaft of the cylinder 7 is connected to a tooth surface positioning and clamping block 8. The tooth surface positioning and clamping block 8 is located in the through hole and guided by the through hole. The tooth surface positioning and clamping block 8 is connected to a pressure plate 9. The cylinder 7 drives the pressure plate 9 to press against the tooth surface positioning and fixing block 6.

[0033] In this embodiment:

[0034] The assembly bevel of the angle positioning plate 5 determines the installation angle of the cylinder 7, the through hole is perpendicular to the assembly bevel, and the through hole cooperates with the tooth surface positioning and clamping block 8 to determine the protruding angle of the tooth surface positioning and clamping block 8. By ensuring the processing accuracy of the angle positioning plate 5, the clamping accuracy requirement of the DP rack 14 during the phase angle processing can be guaranteed. When the phase angle of the DP rack 14 changes, different specifications of angle positioning plates 5 can be selected to install the cylinder 7 and the tooth surface positioning and clamping block 8. The assembly bevel angles on angle positioning plates 5 of different specifications are different;

[0035] The specific action is as follows: the output end of the cylinder 7 drives the tooth surface positioning and clamping block 8 to extend along the through hole, and the pressing plate 9 on the tooth surface positioning and clamping block 8 presses the DP rack 14 onto the tooth surface positioning and fixing block 6, thereby fixing the DP rack 14;

[0036] The utility model can realize high-precision clamping only by ensuring the processing accuracy of the angle positioning plate 5, and has a simpler structure and lower cost.

[0037] Preferably, it also includes a bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected to the slide rail 2, the slide rail 2 is slidably connected to the slider 3, and the slider 3 is fixedly connected to the carrier plate 4. Such a structural design facilitates the direct and integral transfer of the carrier plate 4 and various components on the carrier plate 4, especially before and after processing the DP rack 14, to realize the transfer of the DP rack 14 between different workstations. In fact, other transfer structures can also be considered according to specific circumstances.

[0038] Preferably, earrings are provided on both sides of the pressure plate 9, and rotating columns cooperating with the earrings are provided on both sides of the tooth surface positioning and clamping block 8. The pressure plate 9 is rotatably connected to both sides of the tooth surface positioning and clamping block 8. The tooth surface positioning and clamping block 8 is connected with bolts 10. There are two bolts 10, which are symmetrically distributed about the axis of the rotating column. The end of the bolt 10 presses against the pressure plate 9. With such a structural design, the pressure plate 9 is rotatably connected to the tooth surface positioning and clamping block 8, and the angle of the pressure plate 9 can be adjusted. The bolts 10 are distributed on both sides of the rotation axis, and they press against the pressure plate 9 to fix the circumferential position of the pressure plate 9. In fact, other structural shapes for adjusting the angle in a small range can also be considered according to specific circumstances.

[0039] Preferably, both sides of the tooth surface positioning and fixing block 6 are connected to an extension tube 11, the ends of the extension tube 11 are fixedly connected to the side plate 12, the side plate 12 is threadedly connected to the ejector pin 13, and the DP rack 14 is clamped between the two ejector pins 13. In this structural design, in order to fix the axial position of the DP rack 14, an ejector pin is arranged at each axial end of the DP rack 14, so that the axial position of the DP rack 14 is maintained by the clamping of the ejector pin. In fact, other structural shapes for further fixing the DP rack 14 can also be considered according to specific circumstances.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A DP rack phase angle processing fixture, characterized in that: It comprises a carrier plate (4), the upper surface of which is connected to an angle positioning plate (5) and a tooth surface positioning and fixing block (6), and the tooth surface positioning and fixing block (6) accommodates a DP rack (14); The angle positioning plate (5) is provided with an assembly bevel and a through hole perpendicular to the assembly bevel. The assembly bevel of the angle positioning plate (5) is installed with a cylinder (7). The output shaft of the cylinder (7) is connected to a tooth surface positioning clamping block (8). The tooth surface positioning clamping block (8) is located in the through hole and guided by the through hole. The tooth surface positioning clamping block (8) is connected to a pressure plate (9). The cylinder (7) drives the pressure plate (9) to press against the tooth surface positioning fixing block (6).

2. A DP rack phase angle processing fixture according to claim 1, characterized in that: It also comprises a base plate (1), the upper surface of the base plate (1) being fixedly connected to a slide rail (2), the slide rail (2) being slidably connected to a slider (3), and the slider (3) being fixedly connected to a carrier plate (4).

3. The DP rack phase angle processing fixture according to claim 1, characterized in that: Earrings are provided on both sides of the pressure plate (9), and rotating columns cooperating with the earrings are provided on both sides of the tooth surface positioning and clamping block (8). The pressure plate (9) is rotatably connected to the tooth surface positioning and clamping block (8) on both sides. The tooth surface positioning and clamping block (8) is connected with bolts (10). There are two bolts (10) in total, and they are symmetrically distributed about the axis of the rotating column. The ends of the bolts (10) press against the pressure plate (9).

4. A DP rack phase angle processing fixture according to claim 3, characterized in that: Both side surfaces of the tooth surface positioning and fixing block (6) are connected to an extension tube (11), the end of the extension tube (11) is fixedly connected to a side plate (12), the side plate (12) is threadedly connected to an ejector pin (13), and the DP rack (14) is clamped between the two ejector pins (13).

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