Double-sided machining clamp for radar shell

Abstract

The utility model discloses a double-sided machining clamp for a radar shell, which comprises a four-axis turntable, a driven turntable matched with the four-axis turntable, and bridge plates connected between respective flange plates of the four-axis turntable and the driven turntable, and parts comprise an obliquely arranged arc-shaped cover plate, a side plate extending downwards is arranged at the edge of the front portion of the arc-shaped cover plate with the front end higher than the rear end, a flanging strip horizontally extending outwards is formed at the lower end of the side plate, and the lower surface of the flanging strip is flush with the lower end face of the edge of the rear portion of the arc-shaped cover plate. The upper surface of a supporting plate installed on the bridge plate is provided with a plurality of profiling cushion blocks and a plurality of supporting cushion blocks, wherein the profiling cushion blocks can be correspondingly embedded into a shell cavity of the part and make contact with the lower surface of the arc-shaped cover plate in an attached mode, and the supporting cushion blocks are used for making contact with the lower surface of an upper flanging strip of the part. The two faces of a part can be machined through one-time clamping, and the part which is complex in structure and has few planes can be stably supported and pressed.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC processing, in particular to a double-sided processing fixture for a radar shell. Background Art

[0002] LiDAR (LiDAR) uses a laser transmitter to emit laser light, then receives the reflected light after it strikes an object's surface. Distance is then measured by measuring the time difference between emission and reception. Because laser beams are narrow, have short wavelengths, and offer extremely high resolution, they can capture a wide range of information, including the target's emission characteristics, distance, and speed. LiDAR is widely used in robotics, intelligent vehicles, and other fields. The radar housing, typically made of metal or plastic, protects and secures the radar equipment. A die-casting rough housing is then processed into a finished product using CNC machining.

[0003] Radar shell blanks formed by die casting are generally special-shaped shells. Since special-shaped shell parts have small tolerances and high form and position tolerance requirements, it is very easy for the workpiece to loosen and deform during processing due to unreasonable fixture design, affecting processing efficiency and accuracy. In addition, repeated clamping of the radar shell blank will further lead to the accumulation of processing errors and affect processing accuracy. Utility Model Content

[0004] The main purpose of the utility model is to provide a double-sided processing fixture for radar shells, which can realize the processing of both sides of the parts through one clamping, and can stably support and press parts with complex structures and few flat surfaces.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a double-sided processing fixture of a radar shell, used for clamping parts, comprising: a four-axis turntable, a driven turntable arranged in cooperation with the four-axis turntable, and a bridge plate connected between the flanges of the four-axis turntable and the driven turntable, wherein the parts include an inclined arc-shaped cover plate, the front end of which is higher than the rear end, and a side plate extending downwards is provided at the edge of the front part of the arc-shaped cover plate, so that a shell cavity is enclosed between the side plate and the arc-shaped cover plate, a horizontally outwardly extending flanging strip is formed at the lower end of the side plate, the lower surface of the flanging strip is flush with the lower end surface of the rear edge of the arc-shaped cover plate, and a plurality of outwardly extending waste strips are connected to the edge of the flanging strip and the edge of the rear edge of the arc-shaped cover plate;

[0006] A support plate installed on the bridge plate is provided with a plurality of contour pads on the upper surface thereof which can be correspondingly embedded in the shell cavity of the part and in contact with the lower surface of the arc-shaped cover plate, and a plurality of support pads for contacting the lower surface of the flange strip on the part; at least two cylinders are installed on the bridge plate and on the outer side of the support plate; a movable pressure plate provided above the contour pads and the support pads has a lower surface connected to the piston rod of each cylinder, and a plurality of first pressure rods and a plurality of second pressure rods distributed at intervals are installed on the lower surface of the movable pressure plate which can move up and down with the piston rod of the cylinder;

[0007] The lower end face of the first pressure rod, the upper end of which is connected to the movable pressure plate, is used to press and contact the upper surface of the flange strip on the part, and the lower end face of the second pressure rod, the upper end of which is connected to the movable pressure plate, is used to press and contact the upper surface of the arc cover plate. The first pressure rod and the second pressure rod each include a main body and an elastic layer covering the outer side of one end of the main body away from the movable pressure plate. The upper surface of the arc cover plate has at least one upper processing area, and the lower surface of the arc cover plate has at least one lower processing area. At least one upper through hole corresponding to the upper processing area is provided on the movable pressure plate, and at least one lower through hole corresponding to the lower processing area is provided on the bridge plate and the support plate.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above solution, some of the plurality of second pressure rods are arranged at intervals along the edge of the upper through hole, and the other part of the second pressure rods are arranged at intervals along the edge of the rear portion of the arc-shaped cover plate.

[0010] 2. In the above solution, the elastic layer is a silicone layer, a rubber layer or a polyurethane layer.

[0011] 3. In the above solution, the lower end surface of the second pressure rod is set to be an inclined surface consistent with the tilting direction.

[0012] 4. In the above solution, the integrally formed part is the die-cast shell of the laser radar.

[0013] 5. In the above solution, both ends of the bridge plate are connected to the flanges of the four-axis turntable and the driven turntable through an L-shaped block.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The double-sided processing fixture of the radar shell of the utility model comprises a bridge plate connected between the four-axis turntable and the driven turntable, the upper surface of the support plate installed on the bridge plate is provided with a plurality of profiling pads that can be correspondingly embedded in the shell cavity of the part and fit in contact with the lower surface of the arc cover plate, and a plurality of supporting pads for contacting the lower surface of the flanging strip on the part, at least two cylinders are installed on the bridge plate and on the outer side of the support plate, a movable pressure plate arranged above the profiling pad and the supporting pad is respectively connected to the piston rod of each cylinder, and a plurality of first pressure rods and a plurality of second pressure rods distributed at intervals are installed on the lower surface of the movable pressure plate that can move up and down with the piston rod of the cylinder, the lower end surface of the first pressure rod connected to the movable pressure plate at the upper end is used for pressing and contacting the upper surface of the flanging strip on the part, and the lower end surface of the second pressure rod connected to the movable pressure plate at the upper end is used for pressing and contacting the upper surface of the arc cover plate, and the first pressure rod and the second pressure rod are each The tool is constructed by a process of adjusting the size of the workpiece and of adjusting the angles of the workpiece to allow the workpiece to be moved back and forth across the workpiece surface, so that the workpiece can be easily moved back and forth across the workpiece, thereby reducing the risk of damage to the workpiece and increasing the efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a bottom view of the structure of the parts processed by the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the parts after processing in the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the double-sided processing fixture of the radar shell of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the double-sided processing fixture of the radar housing of the present invention from an upward perspective;

[0020] Figure 5 This is a schematic diagram of the partial structure decomposition of the processing fixture of the utility model from one perspective;

[0021] Figure 6This is a schematic diagram of the partial structure decomposition of the processing fixture of the utility model from another perspective;

[0022] Figure 7 This is an enlarged view of the local structure of the part processed by the present invention when it is in a pressed state.

[0023] In the above drawings: 100, part; 101, arc-shaped cover plate; 102, side plate; 103, shell cavity; 104, flanging strip; 105, waste strip; 200, four-axis turntable; 300, driven turntable; 400, L-shaped block; 1, bridge plate; 2, support plate; 31, contoured pad; 32, support pad; 4, cylinder; 41, support block; 5, movable pressure plate; 51, guide sleeve; 52, guide column; 61, first pressure rod; 62, second pressure rod; 7, upper through hole; 8, lower through hole; 9, main body; 10, elastic layer. DETAILED DESCRIPTION

[0024] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0025] Embodiment 1: A double-sided processing fixture for a radar shell, used for clamping a part 100, comprising: a four-axis turntable 200, a driven turntable 300 arranged in cooperation with the four-axis turntable 200, and a bridge plate 1 connected between the flanges of the four-axis turntable 200 and the driven turntable 300, wherein the part 100 comprises an inclined arc-shaped cover plate 101, the front end of which is higher than the rear end, and a side plate 102 extending downward is provided at the front edge of the arc-shaped cover plate 101, so that a shell cavity 103 is enclosed between the side plate 102 and the arc-shaped cover plate 101, a horizontally outwardly extending flanging strip 104 is formed at the lower end of the side plate 102, the lower surface of the flanging strip 104 is flush with the lower end surface of the rear edge of the arc-shaped cover plate 101, and a plurality of outwardly extending waste strips 105 are connected to the edge of the flanging strip 104 and the rear edge of the arc-shaped cover plate 101;

[0026] The upper surface of a support plate 2 mounted on the bridge plate 1 is provided with a plurality of contour pads 31 which can be correspondingly embedded in the shell cavity 103 of the part 100 and in contact with the lower surface of the arc-shaped cover plate 101, and a plurality of support pads 32 for contacting the lower surface of the flange strip 104 on the part 100. At least two cylinders 4 are mounted on the bridge plate 1 and located on the outer side of the support plate 2. The lower surface of a movable pressure plate 5 arranged above the contour pads 31 and the support pads 32 is respectively connected to the piston rod of each cylinder 4. A plurality of first pressure rods 61 and a plurality of second pressure rods 62 distributed at intervals are mounted on the lower surface of the movable pressure plate 5 which can move up and down with the piston rod of the cylinder 4.

[0027] The lower end face of the first pressure rod 61, whose upper end is connected to the movable pressure plate 5, is used to press and contact the upper surface of the flanging strip 104 on the part 100, and the lower end face of the second pressure rod 62, whose upper end is connected to the movable pressure plate 5, is used to press and contact the upper surface of the arc cover plate 101. The first pressure rod 61 and the second pressure rod 62 each include a main body 9 and an elastic layer 10 covering the outer side of the end of the main body 9 away from the movable pressure plate 5. The upper surface of the arc cover plate 101 has at least one upper processing area, and the lower surface of the arc cover plate 101 has at least one lower processing area. The movable pressure plate 5 is provided with at least one upper through hole 7 corresponding to the upper processing area, and the bridge plate 1 and the support plate 2 are both provided with at least one lower through hole 8 corresponding to the lower processing area.

[0028] Some of the second pressure rods 62 are spaced apart along the edge of the upper through hole 7 , and the other second pressure rods 62 are spaced apart along the edge of the rear portion of the arc-shaped cover plate 101 ;

[0029] The elastic layer 10 is a polyurethane layer; the lower end surface of the second pressure rod 62 is set to be an inclined surface consistent with the tilt direction;

[0030] The above-mentioned integrally formed part 100 is the die-cast shell of the laser radar; the two ends of the above-mentioned bridge plate 1 are connected to the flanges of the four-axis turntable 200 and the driven turntable 300 through an L-shaped block 400 respectively. The four-axis turntable and the driven turntable used in conjunction with it are both purchased from outside and belong to the scope of existing technology, so they will not be described here.

[0031] Embodiment 2: A double-sided processing fixture for a radar shell, used for clamping a part 100, comprising: a four-axis turntable 200, a driven turntable 300 arranged in conjunction with the four-axis turntable 200, and a bridge plate 1 connected between the flanges of the four-axis turntable 200 and the driven turntable 300, wherein the part 100 comprises an inclined arc-shaped cover plate 101, the front end of which is higher than the rear end, and a side plate 102 extending downward is provided at the front edge of the arc-shaped cover plate 101, thereby forming a shell cavity 103 between the side plate 102 and the arc-shaped cover plate 101, a flanging strip 104 extending horizontally outward is formed at the lower end of the side plate 102, the lower surface of the flanging strip 104 is flush with the lower end surface of the rear edge of the arc-shaped cover plate 101, and a plurality of waste strips 105 extending outward are connected to the edge of the flanging strip 104 and the edge of the rear edge of the arc-shaped cover plate 101;

[0032] The upper surface of a support plate 2 mounted on the bridge plate 1 is provided with a plurality of contour pads 31 which can be correspondingly embedded in the shell cavity 103 of the part 100 and in contact with the lower surface of the arc-shaped cover plate 101, and a plurality of support pads 32 for contacting the lower surface of the flange strip 104 on the part 100. At least two cylinders 4 are mounted on the bridge plate 1 and located on the outer side of the support plate 2. The lower surface of a movable pressure plate 5 arranged above the contour pads 31 and the support pads 32 is respectively connected to the piston rod of each cylinder 4. A plurality of first pressure rods 61 and a plurality of second pressure rods 62 distributed at intervals are mounted on the lower surface of the movable pressure plate 5 which can move up and down with the piston rod of the cylinder 4.

[0033] The lower end face of the first pressure rod 61, whose upper end is connected to the movable pressure plate 5, is used to press and contact the upper surface of the flanging strip 104 on the part 100, and the lower end face of the second pressure rod 62, whose upper end is connected to the movable pressure plate 5, is used to press and contact the upper surface of the arc cover plate 101. The first pressure rod 61 and the second pressure rod 62 each include a main body 9 and an elastic layer 10 covering the outer side of the end of the main body 9 away from the movable pressure plate 5. The upper surface of the arc cover plate 101 has at least one upper processing area, and the lower surface of the arc cover plate 101 has at least one lower processing area. The movable pressure plate 5 is provided with at least one upper through hole 7 corresponding to the upper processing area, and the bridge plate 1 and the support plate 2 are both provided with at least one lower through hole 8 corresponding to the lower processing area.

[0034] Some of the second pressure rods 62 are spaced apart along the edge of the upper through hole 7 , and the other second pressure rods 62 are spaced apart along the edge of the rear portion of the arc-shaped cover plate 101 ;

[0035] The elastic layer 10 is a silicone layer; the piston rods of the four cylinders 4 are respectively connected to the four corners of the movable pressure plate 5; each of the cylinders 4 is mounted on the upper surface of the bridge plate 1 through a support block 41;

[0036] The two ends of the movable pressure plate 5 are movably connected to the bridge plate 1 through a set of mutually cooperating guide sleeves 51 and guide pillars 52; the two guide pillars 52 are respectively installed on the lower surfaces of the two ends of the movable pressure plate 5, and the two guide sleeves 51 are respectively installed on the bridge plate 1.

[0037] The double-sided processing fixture of the radar shell of the utility model can realize the processing of both sides of the part through one clamping, saving processing steps and improving processing efficiency, and can avoid the problem of position deviation caused by multiple clamping and thus reducing processing accuracy, and can stably support and press parts with complex structures and few planes and improve the uniformity and stability of the holding force on the parts, which can not only avoid damage to the parts, but also ensure the position stability of the parts during the whole process of double-sided processing, and can also avoid the situation in which the parts, especially the local force in the processing area of ​​the parts, are shaken during processing, resulting in vibration of the knife and the formation of knife marks, thereby improving the processing quality.

[0038] Working principle:

[0039] When in use, first place the support plate that can rotate with the bridge plate in a horizontal position with its upper surface facing upward, and at the same time, extend the piston rod of the cylinder so that the movable pressure plate that moves up and down is away from the support plate;

[0040] Next, the part to be processed is mounted on the profiling pad and the supporting pad so that the lower surface of the flange strip on the part is in contact with the upper surface of the supporting pad, and the lower surface of the arc-shaped cover plate on the part is in contact with each profiling pad, thereby achieving support and position limiting for the part.

[0041] Next, the piston rod of the cylinder drives the movable pressure plate to move toward the part until the first pressure rod and the second pressure rod of different lengths are in pressure contact with the surface of the part.

[0042] By moving the spindle cutter head on the CNC machine and coordinating with the four-axis turntable to drive the rotation of the bridge plate, milling is performed on both sides of the clamped part, removing the waste strips connected to the edge of the part. Other finishing operations such as drilling and deburring are performed in the upper and lower processing areas on the upper and lower sides of the part.

[0043] In the above-mentioned processing process on both sides of the parts, parts with complex structures and few flat surfaces can be stably supported and pressed, ensuring the stability of the position of the parts throughout the double-sided processing process. It can also avoid local vibration in the processing area, which causes the tool to vibrate and form knife marks, thereby improving the processing quality. It can also improve the uniformity and stability of the holding force on the parts, which can avoid both pressure damage to the parts and vibration of the parts during processing, which causes knife marks.

[0044] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A double-sided machining fixture for a radar housing, used for clamping a part (100), comprising: A four-axis turntable (200), a driven turntable (300) arranged in conjunction with the four-axis turntable (200), and a bridge plate (1) connected between the flanges of the four-axis turntable (200) and the driven turntable (300), characterized in that: the part (100) includes an inclined arc-shaped cover plate (101), the front end of the arc-shaped cover plate (101) having a front end higher than the rear end, and a side plate (102) extending downward is provided at the front edge thereof, thereby forming a shell cavity (103) between the side plate (102) and the arc-shaped cover plate (101), the lower end of the side plate (102) is formed with a horizontally outwardly extending flanging strip (104), the lower surface of the flanging strip (104) is flush with the lower end surface of the rear edge of the arc-shaped cover plate (101), and the edge of the flanging strip (104) and the rear edge of the arc-shaped cover plate (101) are both connected with a plurality of outwardly extending waste strips (105); The upper surface of a support plate (2) mounted on the bridge plate (1) is provided with a plurality of contour pads (31) which can be correspondingly embedded in the shell cavity (103) of the part (100) and in contact with the lower surface of the arc-shaped cover plate (101) and a plurality of support pads (32) for contacting the lower surface of the flange strip (104) on the part (100); at least two cylinders (4) are mounted on the bridge plate (1) and located outside the support plate (2); the lower surface of a movable pressure plate (5) arranged above the contour pads (31) and the support pads (32) is respectively connected to the piston rod of each cylinder (4); a plurality of first pressure rods (61) and a plurality of second pressure rods (62) distributed at intervals are mounted on the lower surface of the movable pressure plate (5) which can move up and down with the piston rod of the cylinder (4); The lower end surface of the first pressure rod (61) whose upper end is connected to the movable pressure plate (5) is used to press and contact with the upper surface of the flange strip (104) on the part (100), and the lower end surface of the second pressure rod (62) whose upper end is connected to the movable pressure plate (5) is used to press and contact with the upper surface of the arc cover plate (101). The first pressure rod (61) and the second pressure rod (62) each include a body (9) and an elastic layer (10) covering the outer side of one end of the body (9) away from the movable pressure plate (5). The upper surface of the arc cover plate (101) has at least one upper processing area, and the lower surface of the arc cover plate (101) has at least one lower processing area. The movable pressure plate (5) is provided with at least one upper through hole (7) corresponding to the upper processing area, and the bridge plate (1) and the support plate (2) are both provided with at least one lower through hole (8) corresponding to the lower processing area.

2. The double-sided processing fixture for a radar housing according to claim 1, characterized in that: Among the plurality of second pressure rods (62), a portion of the second pressure rods (62) are arranged at intervals along the edge of the upper through hole (7), and another portion of the second pressure rods (62) are arranged at intervals along the edge of the rear portion of the arc-shaped cover plate (101).

3. The double-sided processing fixture for a radar housing according to claim 1 or 2, characterized in that: The elastic layer (10) is a silicone layer, a rubber layer or a polyurethane layer.

4. The double-sided processing fixture for a radar housing according to claim 3, characterized in that: The lower end surface of the second pressing rod (62) is configured as an inclined surface consistent with the tilting direction.

5. The double-sided processing fixture for a radar housing according to claim 1, characterized in that: The integrally formed part (100) is a die-cast housing of a laser radar.

6. The double-sided processing fixture for a radar housing according to claim 1, characterized in that: Both ends of the bridge plate (1) are connected to the flanges of the four-axis turntable (200) and the driven turntable (300) respectively through an L-shaped block (400).

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