A positioning fixture and radar accessories assembly equipment

Abstract

The present invention relates to the field of radar accessory assembly equipment positioning technology, specifically to a positioning fixture and radar accessory assembly equipment, the positioning fixture comprising: a second connecting block, a first connecting block, a fixed clamp, a movable clamp, a positioning piece and an adjusting piece; the beneficial effect is: by pulling the positioning rotating plate away from the fixed clamp, the rotation limit rod is disengaged from the rotation limit groove, and then the positioning base is rotated ninety degrees, and the positioning rotating plate is released, the tension spring drives the positioning rotating plate to move toward the fixed clamp, and the rotation limit rod enters another group of rotation limit grooves to rotationally limit and fix the positioning base, thereby realizing the movement of the positioning base, and by providing two groups of movable movable clamps and a group of fixed fixed clamps, and one group of movable clamps is located centered between the other group of movable clamps and the fixed clamps, so that when the movable clamps cooperate with the fixed clamps to clamp the radar accessories, the clamping force is dispersed, thereby effectively reducing the deformation damage of the radar accessories.

Description

Technical Field

[0001] The present invention relates to the technical field of radar component assembly equipment positioning, and in particular to a positioning fixture and radar component assembly equipment. Background Art

[0002] As the name suggests, automotive radar is a radar used in cars and other ground vehicles. Therefore, it includes a variety of radars based on different technologies (such as laser, ultrasonic, and microwave), with different functions (such as obstacle detection, collision prediction, and adaptive cruise control), and using different operating principles (such as pulse radar, FMCW radar, and microwave impact radar).

[0003] Existing automotive radars require the use of assembly equipment to assemble multiple radar components during production, and fixtures are required during assembly. The fixtures are usually composed of positioning elements, clamping devices, tool guide elements, connecting elements, and clamping bodies.

[0004] The current fixture fixes the positioning elements of the clamped object on the fixture surface and cannot be moved. Moreover, when clamping a cylindrical radar accessory, excessive force on the clamping jaws can easily cause deformation or clamping marks on the accessory surface, thereby increasing the product defect rate. Summary of the Invention

[0005] The object of the present invention is to provide a positioning fixture and radar component assembly equipment to solve the problem of deformation of radar components during clamping.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A positioning fixture, comprising:

[0008] a second connecting block, fixed to the left side of the fixture surface;

[0009] A first connecting block is fixed to the right side of the fixture surface;

[0010] A fixed clamping claw is arranged outside the first connecting block;

[0011] There are two groups of movable clamping jaws, one group is arranged outside the first connecting block and above the fixed clamping jaws, and the other group is arranged outside the second connecting block;

[0012] The positioning member includes a positioning base and a rotation limiter connected to the positioning base, the rotation limiter is arranged on the surface of the end of the fixed clamping jaw away from the movable clamping jaw, the positioning base is a sleeve-shaped structure, and the inner wall diameter of the positioning base is equal to the diameter of the radar accessory, a positioning column is arranged in the center of the bottom end of the inner wall of the positioning base, and the positioning base and the positioning column cooperate to position the radar accessory to the limiter, and the rotation limiter limits and fixes the positioning base; and

[0013] The adjusting member is arranged on the surfaces of the second connecting block and the first connecting block, and limits and fixes the movable clamping jaw.

[0014] Preferably, a fixing groove is formed near the bottom end on the surface of the first connecting block. The fixing groove penetrates through the first connecting block. One end of the fixing clamping jaw close to the first connecting block is connected with a fixing block, and the fixing block is inserted into the fixing groove, and the fixing block is fixed by a fixing bolt passing through the first connecting block.

[0015] Preferably, the rotation limiting member includes a positioning rotating plate, a positioning rotating shaft and a positioning limiting member. The positioning rotating shaft is fixed on the surface of the fixing clamping jaw far away from the movable clamping jaw and has a "T" - shaped structure. The positioning rotating plate is sleeved on the outer surface of the positioning rotating shaft and rotates around the axis of the positioning rotating shaft. One end of the positioning rotating plate is connected with the positioning base.

[0016] Preferably, the positioning limiting member includes a rotation limiting groove, a rotation limiting rod matching with the rotation limiting groove and a tension spring. One end of the tension spring is connected with the positioning rotating plate, and the other end is connected with the fixing clamping jaw. The rotation limiting groove is formed on the surface of the fixing clamping jaw and has a cross - sectional structure of "匚", and there are two groups. The two groups of rotation limiting grooves are circumferentially distributed around the axis of the positioning rotating shaft. The included angle between the axis lines of the two groups of rotation limiting grooves and the axis line of the positioning rotating shaft is 90 degrees. One end of the rotation limiting rod is connected with the end of the positioning rotating plate close to the fixing clamping jaw.

[0017] Preferably, the adjusting member includes a movable groove, a movable block matching with the movable groove, a limiting slider, a limiting sliding groove matching with the limiting slider, a movable member and a movable limiting member. The movable groove is formed on the surfaces of the second connecting block and the first connecting block and penetrates through. One end of the movable block is inserted into the movable groove, and the other end is connected with the movable clamping jaw. The limiting slider is arranged on the surface of the movable groove, and the limiting sliding groove is formed on the surface of the movable block. The limiting slider and the limiting sliding groove have a cross - sectional structure of "T". And the movable clamping jaw on one side of the second connecting block is centered between the fixing clamping jaw and the movable clamping jaw on one side of the first connecting block.

[0018] Preferably, a second limiting groove and a third limiting groove are formed on the surface of the second connecting block. The third limiting groove is located near the lower end on the side far away from the limiting slider of the movable groove, and the second limiting groove is located above the third limiting groove. There are multiple groups, and both the second limiting groove and the third limiting groove penetrate through the second connecting block. The multiple groups of second limiting grooves are linearly distributed. The diameter of the second limiting groove is equal to the diameter of the third limiting groove. A first limiting groove is formed on the surface of the first connecting block. The first limiting groove is located on the side far away from the limiting slider of the movable groove and penetrates through the first connecting block. There are multiple groups of the first limiting groove and they are linearly distributed. The diameter of the first limiting groove is equal to the diameter of the second limiting groove, and the distance between adjacent two groups of the first limiting grooves is equal to twice the distance between adjacent two groups of the second limiting grooves.

[0019] Preferably, the movable part includes a guide groove, a guide post engaged with the guide groove, and an adjusting block. The guide groove is formed on the surfaces of the second connecting block and the first connecting block, and is located on both sides of the first limiting groove and the second limiting groove. There are two adjusting blocks, which are respectively arranged outside the second connecting block and the first connecting block. One end of the guide post is connected to the end of the movable block away from the limiting sliding groove, and the other end passes through the guide groove and is connected to the adjusting block.

[0020] Preferably, the movable limiting part includes a limiting post, a limiting fixing groove engaged with the limiting post, and a blocking part. The limiting fixing groove is formed in the middle of the surface of the movable block away from the limiting sliding groove, and its cross-section is in a "匚" - shaped structure. The limiting post passes through the adjusting block, and one end passes through the first limiting groove or the second limiting groove and is inserted into the internal of the limiting fixing groove.

[0021] Preferably, the blocking part includes a fixing post, a blocking groove, a blocking plate, a compression spring, a limiting handle, a fixing rod, and a limiting block. The fixing post is fixed in the middle of the surface of the adjusting block away from the guide post, and is sleeved outside the limiting post. The blocking groove is formed on the surface of the fixing post close to the adjusting block, and its cross-section is in a "匚" - shaped structure, and the fixing post and the limiting post are coaxially arranged. The limiting handle is fixed on the surface of the limiting post away from the limiting fixing groove, and its length is greater than the diameter of the fixing post. The blocking plate is sleeved on the surface of the limiting post and is located inside the blocking groove. The compression spring is sleeved outside the limiting post. One end of the compression spring is connected to the blocking plate, and the other end is connected to the blocking groove. The fixing rod is fixed on the surface of the adjusting block and is located on both sides of the fixing post. The limiting block is fixed on the surface of the fixing rod away from the adjusting block, and is in a "匚" - shaped structure, and the sum of the length of the fixing post, the depth of the limiting fixing groove, and the length of the guide post is less than the length of the fixing rod.

[0022] A radar accessory assembling device includes the above - mentioned positioning fixture.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] In the present invention, by pulling the positioning rotating plate away from the fixed clamping jaw, the rotating limiting rod is disengaged from the rotating limiting groove, and then the positioning base is rotated by 90 degrees. After releasing the positioning rotating plate, the tension spring drives the positioning rotating plate to move towards the fixed clamping jaw, and then the rotating limiting rod enters another group of rotating limiting grooves, thereby limiting and fixing the rotation of the positioning base, realizing the movement of the positioning base. By setting two groups of movable movable clamping jaws and one group of fixed fixed clamping jaws, and one group of movable clamping jaws is centered between the other group of movable clamping jaws and the fixed clamping jaw. When the movable clamping jaws and the fixed clamping jaw cooperate to clamp the radar accessory, the clamping force is dispersed. By adjusting the distance between the movable clamping jaws and the fixed clamping jaw, the clamping force of the movable clamping jaws and the fixed clamping jaw on the radar accessory is further adjusted, effectively reducing the deformation and damage of the radar accessory. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of the main three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic side view of the three-dimensional structure of the present invention;

[0027] Figure 3 Schematic diagram of the three-dimensional structure of the movable clamping member of the present invention;

[0028] Figure 4 Schematic diagram of the three-dimensional structure of the fixed clamping jaw of the present invention;

[0029] Figure 5 Schematic diagram of the three-dimensional structure of the first connecting block of the present invention;

[0030] Figure 6 is a schematic diagram of the three-dimensional structure of the second connecting block of the present invention;

[0031] Figure 7 Schematic diagram of a partial three-dimensional structure of the movable clamping jaw of the present invention;

[0032] Figure 8 It is a schematic diagram of a partially cutaway three-dimensional structure of the movable clamping jaw of the present invention.

[0033] In the figure: clamp 1, fixed jaw 2, movable jaw 3, radar accessory 4, positioning base 5, second connecting block 6, movable groove 7, adjusting block 8, fixed column 9, first connecting block 10, limiting slider 11, limiting slide groove 12, fixing bolt 13, guide groove 14, first limiting groove 15, fixing rod 16, limiting block 17, limiting column 18, limiting handle 19, positioning shaft 20, positioning column 21, positioning rotating plate 22, tension spring 23, rotation limiting groove 24, rotation limiting rod 25, fixed block 26, fixed groove 27, second limiting groove 28, third limiting groove 29, movable block 30, limiting fixed groove 31, shift plate 32, compression spring 33, shift groove 34, guide column 35. DETAILED DESCRIPTION

[0034] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "one," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] For the purpose of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring the understanding of these embodiments. In addition, all embodiments may be used in combination with each other.

[0038] See also Figures 1 to 8 , the present invention provides a technical solution:

[0039] A positioning fixture, the positioning fixture comprising: a second connecting block 6, fixed to the left side of the surface of the fixture 1; a first connecting block 10, fixed to the right side of the surface of the fixture 1; a fixed jaw 2, arranged outside the first connecting block 10; two groups of movable jaws 3, one group arranged outside the first connecting block 10 and above the fixed jaw 2, and the other group arranged outside the second connecting block 6; a positioning member, including a positioning base 5 and a rotation limiting member connected to the positioning base 5, the rotation limiting member being arranged on the surface of the fixed jaw 2 away from the movable jaw 3, the positioning base 5 being in a sleeve-like structure, and the inner diameter of the inner wall of the positioning base 5 being equal to the diameter of the radar fitting 4, a positioning column 21 being centrally arranged at the bottom end of the inner wall of the positioning base 5, and the positioning base 5 and the positioning column 21 cooperating to position and limit the radar fitting 4, and the rotation limiting member limiting and fixing the positioning base 5; and an adjusting member, arranged on the surfaces of the second connecting block 6 and the first connecting block 10, and limiting and fixing the movable jaw 3; a fixing groove 27 is formed near the bottom end of the surface of the first connecting block 10, the fixing groove 27 runs through the first connecting block 10, one end of the fixed jaw 2 close to the first connecting block 10 is connected with a fixing block 26, and the fixing block 26 is inserted into the fixing groove 27, and the fixing block 26 is fixed by a fixing bolt 13 passing through the first connecting block 10.

[0040] The present invention may be further arranged such that the rotation limiting member includes a positioning rotating plate 22, a positioning rotating shaft 20 and a positioning limiting member, the positioning rotating shaft 20 is fixed on the surface of the fixed jaw 2 away from the movable jaw 3, and is in a "T" - shaped structure, the positioning rotating plate 22 is sleeved on the outer surface of the positioning rotating shaft 20 and rotates around the axis of the positioning rotating shaft 20, and one end of the positioning rotating plate 22 is connected to the positioning base 5; the positioning limiting member includes a rotation limiting groove 24, a rotation limiting rod 25 cooperating with the rotation limiting groove 24 and a tension spring 23, one end of the tension spring 23 is connected to the positioning rotating plate 22, and the other end is connected to the fixed jaw 2, the rotation limiting groove 24 is formed on the surface of the fixed jaw 2, and the cross - section is in a "匚" - shaped structure, and there are two groups, and the two groups of rotation limiting grooves are circumferentially distributed around the axis of the positioning rotating shaft 20, the included angle between the axis lines of the two groups of rotation limiting grooves and the axis line of the positioning rotating shaft 20 is ninety degrees, and one end of the rotation limiting rod 25 is connected to the end of the positioning rotating plate 22 close to the fixed jaw 2.

[0041] The present invention can be further configured such that the adjusting member includes a movable groove 7, a movable block 30 engaged with the movable groove 7, a limiting slider 11, a limiting chute 12 engaged with the limiting slider 11, a movable member, and a movable limiting member. The movable groove 7 is formed on the surfaces of the second connecting block 6 and the first connecting block 10 and runs through them. One end of the movable block 30 is inserted into the movable groove 7, and the other end is connected to the movable jaw 3. The limiting slider 11 is arranged on the surface of the movable groove 7, and the limiting chute 12 is formed on the surface of the movable block 30. The cross-sections of the limiting slider 11 and the limiting chute 12 are in a "T" shape. And the movable jaw 3 on one side of the second connecting block 6 is centered between the fixed jaw 2 and the movable jaw 3 on one side of the first connecting block 10.

[0042] The present invention can be further configured such that the second connecting block 6 has a second limiting groove 28 and a third limiting groove 29 formed on its surface. The third limiting groove 29 is located near the lower end on the side of the movable groove 7 away from the limiting slider 11, and the second limiting groove 28 is located above the third limiting groove 29 and has multiple groups. Both the second limiting groove 28 and the third limiting groove 29 run through the second connecting block 6. The multiple groups of second limiting grooves 28 are linearly distributed. The diameter of the second limiting groove 2 is equal to that of the third limiting groove 29. The first connecting block 10 has a first limiting groove 15 formed on its surface. The first limiting groove 15 is located on the side of the movable groove 7 away from the limiting slider 11 and runs through the first connecting block 10. The first limiting groove 1 has multiple groups and is linearly distributed. The diameter of the first limiting groove 15 is equal to that of the second limiting groove 28, and the distance between two adjacent groups of first limiting grooves 15 is twice the distance between two adjacent groups of second limiting grooves 28.

[0043] The present invention can be further configured such that the movable member includes a guiding groove 14, a guiding column 35 engaged with the guiding groove 14, and an adjusting block 8. The guiding groove 14 is formed on the surfaces of the second connecting block 6 and the first connecting block 10 and is located on both sides of the first limiting groove 15 and the second limiting groove 28. There are two adjusting blocks 8 which are respectively arranged outside the second connecting block 6 and the first connecting block 10. One end of the guiding column 35 is connected to the end of the movable block 30 away from the limiting chute 12, and the other end passes through the guiding groove 14 and is connected to the adjusting block 8. The movable limiting member includes a limiting column 18, a limiting fixing groove 31 engaged with the limiting column 18, and a blocking member. The limiting fixing groove 31 is formed in the middle of the surface of the end of the movable block 30 away from the limiting chute 12, and its cross-section is in a "匚" shape. The limiting column 18 passes through the adjusting block 8, and one end passes through the first limiting groove 15 or the second limiting groove 28 and is inserted into the limiting fixing groove 31.

[0044] The present invention can be further configured such that the gear member includes a fixed column 9, a gear slot 34, a gear plate 32, a compression spring 33, a limit handle 19, a fixed rod 16, and a limit block 17. The fixed column 9 is fixed at the center of the surface of the adjusting block 8 away from the guiding column 35 and is sleeved outside the limit column 18. The gear slot 34 is opened on the surface of the fixed column 9 close to the adjusting block 8, and the cross-section is in a "C" shape structure. The fixed column 9 and the limit column 18 are coaxially arranged. The limit handle 19 is fixed on the surface of the limit column 18 away from the limit fixing slot 31, and the length is greater than the diameter of the fixed column 9. The gear plate 32 is sleeved on the surface of the limit column 18 and is located inside the gear slot 34. The compression spring 33 is sleeved outside the limit column 18. One end of the compression spring 33 is connected to the gear plate 32, and the other end is connected to the gear slot 34. The fixed rod 16 is fixed on the surface of the adjusting block 8 and is located on both sides of the fixed column 9. The limit block 17 is fixed on the surface of the fixed rod 16 away from the adjusting block 8 and is in a "C" shape structure. The sum of the length of the fixed column 9, the depth of the limit fixing slot 31, and the length of the guiding column 35 is less than the length of the fixed rod 16.

[0045] A radar accessory assembling device includes the positioning fixture described above.

[0046] When the positioning member needs to be used, the radar accessory 4 is inserted into the positioning base 5 and cooperates with the positioning column 21, so as to be positioned by the fixture 1. Then the fixture 1 drives the movable jaw 3 and the fixed jaw 2 to cooperate to clamp the radar accessory 4. When the positioning member does not need to be used, by pulling the positioning rotating plate 22 away from the fixed jaw 2, the rotating limit rod 25 is disengaged from the rotating limit slot 24. Then the positioning base 5 is rotated by 90 degrees. After releasing the positioning rotating plate 22, the tension spring 23 drives the positioning rotating plate 22 to move towards the fixed jaw 2, and the rotating limit rod 25 enters another group of rotating limit slots 24, so as to limit and fix the rotation of the positioning base 5, realizing the movement of the positioning base 5. <000010VII>By providing two groups of movable movable jaws 3 and one group of fixed fixed jaws 2, and one group of movable jaws 3 is centered between the other group of movable jaws 3 and the fixed jaws 2, when the movable jaws 3 and the fixed jaws 2 cooperate to clamp the radar accessory 4, the clamping force is dispersed, effectively reducing the deformation damage of the radar accessory 4.

[0048] By pulling the limit handle 19, the limit column 18 is pulled outward, so that the limit column 18 is disengaged from the limit fixing groove 31, and then the limit handle 19 is rotated ninety degrees, so that the compression spring 33 supports the shift plate 32 to drive the limit column 18 to move toward the limit fixing groove 31. At this time, the limit handle 19 is located inside the limit block 17, and the limit column 18 is disengaged from the limit fixing groove 31 and enters the inside of the adjustment block 8. Then, the movable block 30 is adjusted to slide inside the movable groove 7 through the adjustment block 8. The limit slider 11 cooperates with the limit slide groove 12 to vertically limit the movable block 30, and then the limit handle 19 is pulled outward and rotated ninety degrees. The compression spring 33 supports the blocking plate 32 through the corresponding first limiting groove 15 and the second limiting groove 28 and enters the limiting fixing groove 31, thereby limiting and fixing the movable clamping jaw 3. The spacing between two adjacent groups of first limiting grooves 15 is equal to twice the spacing between two adjacent groups of second limiting grooves 28, so that the movable clamping jaw 3 on the outside of the second connecting block 6 is always centered between the movable clamping jaw 3 and the fixed clamping jaw 2 on the outside of the first connecting block 10. By adjusting the spacing between the movable clamping jaw 3 and the fixed clamping jaw 2, the clamping force of the movable clamping jaw 3 and the fixed clamping jaw 2 on the radar accessory 4 can be further adjusted, thereby effectively reducing the deformation damage of the radar accessory 4.

[0049] When the limiting column 18 outside the second connecting block 6 passes through the third limiting groove 29 and is inserted into the limiting fixing groove 31, the movable clamping jaw 3 outside the second connecting block 6 and the fixed clamping jaw 2 outside the first connecting block 10 are in the same horizontal plane.

[0050] Although the above describes the illustrative specific implementation methods of the present application so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific implementation methods. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations based on the concept of the present application are protected.

Claims

1. A positioning fixture, characterized in that: The positioning fixture includes: A second connecting block (6), fixed to the left side of the surface of the fixture (1); A first connecting block (10), fixed to the right side of the surface of the fixture (1); A fixed jaw (2), arranged outside the first connecting block (10); There are two sets of movable jaws (3). One set is arranged outside the first connecting block (10) and above the fixed jaw (2), and the other set is arranged outside the second connecting block (6); A positioning member, including a positioning base (5) and a rotation limiting member connected to the positioning base (5). The rotation limiting member is arranged on the surface of the fixed jaw (2) at the end far from the movable jaw (3). The positioning base (5) is in a sleeve-like structure, and the inner diameter of the inner wall of the positioning base (the positioning base (5) cooperates with the positioning column (21) to position and limit the radar fitting (4), and the rotation limiting member limits and fixes the positioning base (5); and An adjusting member, arranged on the surfaces of the second connecting block (6) and the first connecting block (10), and limits and fixes the movable jaw (3); A fixing groove (27) is opened near the bottom end on the surface of the first connecting block (10). The fixing groove (27) penetrates through the first connecting block (10). One end of the fixed jaw (2) close to the first connecting block (10) is connected with a fixing block (26), and the fixing block (26) is inserted into the fixing groove (27), and the fixing block (26) is fixed by a fixing bolt (13) passing through the first connecting block (10); The rotation limiting member includes a positioning rotating plate (22), a positioning rotating shaft (20), and a positioning limiting member. The positioning rotating shaft (20) is fixed on the surface of the fixed jaw (2) at the end far from the movable jaw (3), and is in a "T" - shaped structure. The positioning rotating plate (22) is sleeved on the outer surface of the positioning rotating shaft (20) and rotates around the axis of the positioning rotating shaft (20). One end of the positioning rotating plate (22) is connected with the positioning base (5); The positioning limiting member includes a rotation limiting groove (24), a rotation limiting rod (25) cooperating with the rotation limiting groove (24), and a tension spring (23). One end of the tension spring (23) is connected with the positioning rotating plate (22), and the other end is connected with the fixed jaw (2). The rotation limiting groove (24) is opened on the surface of the fixed jaw (2), and the cross - section is in a "匚" - shaped structure, and there are two sets. The two sets of rotation limiting grooves (24) are circumferentially distributed around the axis of the positioning rotating shaft (20). The included angle between the axis lines of the two sets of rotation limiting grooves (24) and the axis line of the positioning rotating shaft (20) is 90 degrees. One end of the rotation limiting rod (25) is connected with the end of the positioning rotating plate (22) close to the fixed jaw (2); The adjusting member includes a movable groove (7), a movable block (30) mating with the movable groove (7), a limiting slider (11), a limiting chute (12) mating with the limiting slider (11), a movable member, and a movable limiting member. The movable groove (7) is formed on the surfaces of the second connecting block (6) and the first connecting block (10) and runs through them. One end of the movable block (30) is inserted into the movable groove (7), and the other end is connected to the movable jaw (3). The limiting slider (11) is arranged on the surface of the movable groove (7), and the limiting chute (12) is formed on the surface of the movable block (30). The cross-sections of the limiting slider (11) and the limiting chute (12) are in a "T" shape. The movable jaw (3) on one side of the second connecting block (6) is centered between the fixed jaw (2) and the movable jaw (3) on one side of the first connecting block (10).

2. A positioning fixture according to claim 1, characterized in that: The surface of the second connecting block (6) is provided with a second limiting groove (28) and a third limiting groove (29). The third limiting groove (29) is located near the lower end on the side of the movable groove (7) away from the limiting slider (11). The second limiting groove (28) is located above the third limiting groove (29) and there are multiple groups. Both the second limiting groove (28) and the third limiting groove (29) run through the second connecting block (6). The multiple groups of second limiting grooves (28) are linearly distributed. The diameter of the second limiting groove (28) is equal to the diameter of the third limiting groove (29). The surface of the first connecting block (10) is provided with a first limiting groove (15). The first limiting groove (15) is located on the side of the movable groove (7) away from the limiting slider (11) and runs through the first connecting block (10). There are multiple groups of the first limiting groove (15) and they are linearly distributed. The diameter of the first limiting groove (15) is equal to the diameter of the second limiting groove (28), and the distance between two adjacent groups of the first limiting grooves (15) is equal to twice the distance between two adjacent groups of the second limiting grooves (28).

3. A positioning fixture according to claim 2, characterized in that: The movable member includes a guiding groove (14), a guiding column (35) mating with the guiding groove (14), and an adjusting block (8). The guiding groove (14) is formed on the surfaces of the second connecting block (6) and the first connecting block (10) and is located on both sides of the first limiting groove (15) and the second limiting groove (28). There are two adjusting blocks (8) which are respectively arranged outside the second connecting block (6) and the first connecting block (10). One end of the guiding column (35) is connected to the end of the movable block (30) away from the limiting chute (12), and the other end passes through the guiding groove (14) and is connected to the adjusting block (8).

4. A positioning fixture according to claim 3, characterized in that: The movable limiting member includes a limiting column (18), a limiting fixing groove (31) mating with the limiting column (18), and a blocking member. The limiting fixing groove (31) is formed in the middle of the surface of the end of the movable block (30) away from the limiting chute (12), and its cross-section is in a "匚" shape. The limiting column (18) passes through the adjusting block (8), and one end passes through the first limiting groove (15) or the second limiting groove (28) and is inserted into the limiting fixing groove (31).

5. A positioning fixture according to claim 4, characterized in that: The gear member includes a fixed column (9), a gear slot (34), a gear plate (32), a compression spring (33), a limiting handle (19), a fixed rod (16), and a limiting block (17). The fixed column (9) is fixed at the center of the surface of the adjusting block (8) far from the guiding column (35), and is sleeved outside the limiting column (18). The gear slot (34) is opened on the surface of the fixed column (9) near the adjusting block (8), and the cross-section is in a "C" - shaped structure. The fixed column (9) and the limiting column (18) are coaxially arranged. The limiting handle (19) is fixed on the surface of the limiting column (18) far from the limiting fixed slot (31), and its length is greater than the diameter of the fixed column (9). The gear plate (32) is sleeved on the surface of the limiting column (18) and is located inside the gear slot (34). The compression spring (33) is sleeved outside the limiting column (18). One end of the compression spring (33) is connected to the gear plate (32), and the other end is connected to the gear slot (34). The fixed rod (16) is fixed on the surface of the adjusting block (8) and is located on both sides of the fixed column (9). The limiting block (17) is fixed on the surface of the fixed rod (16) far from the adjusting block (8), and is in a "C" - shaped structure. The sum of the length of the fixed column (9), the depth of the limiting fixed slot (31), and the length of the guiding column (35) is less than the length of the fixed rod (16).

6. A radar component assembly device, characterized in that: Comprising the positioning fixture according to any one of the above claims 1 - 5.

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