Positioning vehicle

Abstract

The present invention relates to a positioning carrier, comprising a base and a clamping mechanism. A positioning step is arranged along the circumference of the base, and the positioning step has a first bearing surface and a second bearing surface. The positioning step can be used to bear a curved thin-walled part. Moreover, since the first bearing surface of the positioning step is constructed as a contour surface of the thickness surface of the curved thin-walled part, and the second bearing surface is constructed as a contour surface of the inner surface of the curved thin-walled part, the curved thin-walled part can be positioned on the base by bearing the thickness surface against the first bearing surface and the inner surface against the second bearing surface. Then, the clamping mechanism is operated and the clamping block is abutted against the outer surface of the curved thin-walled part carried on the positioning step, so that the curved thin-walled part can be clamped. It can be seen that when the upper positioning carrier positions the curved thin-walled part, it will neither leave suction marks nor damage the inner surface. Therefore, the above-mentioned positioning carrier can reliably position the curved thin-walled part.

Description

Technical Field

[0001] The present invention relates to the field of mechanical processing technology, and in particular to a positioning carrier. Background Art

[0002] During the processing and inspection of parts, it is often necessary to position and fix them. As people's pursuit of product appearance increases, more and more parts such as product shells will adopt thin-walled parts with special-shaped curved surfaces. The carriers used to position thin-walled parts generally use suction cups, magnets, and other methods. The difficulty of positioning curved thin-walled parts is even higher. Moreover, the inner surface of some curved thin-walled parts is coated with a coating. Common positioning methods will leave suction marks on the surface of the parts and even damage the coating. It can be seen that common carriers can no longer reliably position curved thin-walled parts. Summary of the invention

[0003] Based on this, it is necessary to provide a positioning vehicle that can reliably position curved thin-walled parts to address the above problems.

[0004] A positioning carrier is used to position a curved thin-walled part, wherein the curved thin-walled part comprises an outer surface, an inner surface, and a thickness surface connecting the outer surface and the inner surface, and the positioning carrier comprises:

[0005] A base, wherein a positioning step is provided along the circumference of the base, the positioning step having a first bearing surface and a second bearing surface, the first bearing surface being configured as a profiling surface of the thickness surface, and the second bearing surface being configured as a profiling surface of the inner surface; and

[0006] The clamping mechanism comprises a clamping block, which can abut against the outer surface of the curved thin-walled part carried on the positioning step and limit the curved thin-walled part to the positioning step.

[0007] In one of the embodiments, the positioning step includes a plurality of step blocks, and the plurality of step blocks are arranged at intervals along the circumference of the base.

[0008] In one of the embodiments, a limit block is further included. The limit block is arranged on the positioning step and is arranged opposite to the second bearing surface. The clamping block can hold the curved thin-walled part against the limit block.

[0009] In one embodiment, a spherical protrusion is provided on the surface of the limiting block facing the second bearing surface.

[0010] In one of the embodiments, a guiding inclined surface is formed on a side of the limiting block facing the second bearing surface, and the guiding inclined surface extends from a top end of the limiting block toward the second bearing surface.

[0011] In one of the embodiments, the surface of the clamping block used to abut against the curved thin-walled part is configured as a contoured surface of the outer surface.

[0012] In one of the embodiments, the clamping block can elastically abut against the curved thin-walled member supported on the positioning step.

[0013] In one embodiment, the clamping mechanism comprises:

[0014] A driving member, fixed to the base;

[0015] A guide shaft is slidably disposed on the base, one end of the guide shaft is fixedly connected to the driving end of the driving member, and the clamping block is slidably sleeved on the guide shaft;

[0016] A stopper fixedly connected to an end of the guide shaft away from the driving member;

[0017] An elastic member is arranged between the stop block and the clamping block, and provides a reverse force when the stop block and the clamping block are close to each other.

[0018] In one embodiment, the clamping mechanism further comprises:

[0019] A connecting rod, slidably passing through the stopper and parallel to the guide shaft, one end of the connecting rod being fixedly connected to the clamping block;

[0020] The toggle plate is sleeved on the connecting rod and is located at a side of the stopper facing away from the clamping block. The toggle plate can drive the clamping block to move closer to the stopper.

[0021] In one of the embodiments, a limiting member is provided on the base, and the clamping block can be rotated around the guide shaft driven by the toggle piece until it forms a limit position with the limiting member.

[0022] The above-mentioned positioning carrier can use the positioning step to carry the curved thin-walled part. Since the first bearing surface of the positioning step is constructed as a profiling surface of the thickness surface of the curved thin-walled part, and the second bearing surface is constructed as a profiling surface of the inner surface of the curved thin-walled part, the curved thin-walled part can be positioned on the base by bearing the thickness surface against the first bearing surface and the inner surface against the second bearing surface. Then, the clamping mechanism is operated and the clamping block is abutted against the outer surface of the curved thin-walled part carried on the positioning step, so that the curved thin-walled part can be clamped. It can be seen that when the upper positioning carrier positions the curved thin-walled part, it will neither leave suction marks nor damage the inner surface. Therefore, the above-mentioned positioning carrier can reliably position the curved thin-walled part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a positioning vehicle in one embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a positioning vehicle in another embodiment of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a positioning carrier in another embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the structure of a clamping mechanism in one embodiment of the present invention;

[0028] Figure 5 for Figure 4 A front view of the clamping mechanism shown;

[0029] Figure 6 A schematic diagram of the structure of a limit block in one embodiment of the present invention;

[0030] Figure 7 for Figure 6 A top view of the limit block shown;

[0031] Figure 8 Schematic diagram of the structure of a curved thin-walled part in one embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0038] See also Figures 1 to 3 The present invention provides a positioning carrier 100, which is used for Figure 8 The curved thin-walled member 200 is shown positioned.

[0039] The curved thin-walled part 200 may be a part such as a housing or a panel of an electronic product. The curved thin-walled part 200 includes an outer surface 201, an inner surface 202, and a thickness surface 203 connecting the outer surface 201 and the inner surface 202. The outer surface 201 and the inner surface 202 are both curved surfaces, which may be arc-shaped or irregularly shaped. The thickness surface 203 is generally a closed annular surface, and its inner and outer edges overlap with the edges of the outer surface 201 and the inner surface 202, respectively.

[0040] In addition, a portion of the inner surface 202 of the curved thin-walled part 200 is also provided with a coating area 204, and a coating of a specific material is formed in the coating area 204. Generally, the coating area 204 does not completely cover the inner surface 202, but forms a non-coating area 205 between the edge of the inner surface 202. The non-coating area 205 generally extends along the edge of the inner surface 202, and the width of the non-coating area 205 is equal to the distance between the edge of the inner surface 202 and the edge of the coating area 204.

[0041] Please refer again Figure 1 In one embodiment of the present invention, a positioning carrier 100 includes a base 110 and a clamping mechanism 120 .

[0042] The base 110 plays a supporting role and can be a square, round or other metal plate structure. A positioning step 111 is provided along the circumference of the base 110, and the positioning step 111 has a first bearing surface 1111 and a second bearing surface 1112. Moreover, the first bearing surface 1111 is configured as a profiling surface of the thickness surface 203, and the second bearing surface 1112 is configured as a profiling surface of the inner surface 202.

[0043] The first bearing surface 1111 is connected to the second bearing surface 1112, and the two are roughly L-shaped. When the base 110 is placed on a horizontal plane, the second bearing surface 1112 extends upward from the edge of the first bearing surface 1111. The second bearing surface 1112 has a certain width, and the width refers to the distance between the end of the second bearing surface 1112 away from the first bearing surface 1111 and the first bearing surface 1111.

[0044] In addition, the profiling surface refers to a plane that simulates the surface structure of the target plane, so the profiling surface and the target plane can be effectively fitted. In other words, the first bearing surface 1111 can be effectively fitted with the thickness surface 203, and the second bearing surface 1112 can be effectively fitted with the inner surface 202. When it is necessary to position the curved thin-walled component 200, the thickness surface 203 can be supported on the first bearing surface 1111, and the inner surface 202 can be supported on the second bearing surface. In this way, the curved thin-walled component 200 can be supported on the positioning step 111, so as to perform a preliminary positioning of the curved thin-walled component 200 on the base 110.

[0045] In the case where the inner surface 202 is formed with the coating area 204, when the curved thin-walled member 200 is supported on the positioning step 111, the non-coating area 205 and the second bearing surface 1112 are supported to avoid damage to the coating of the coating area 204. Therefore, the width of the second bearing surface 1112 should not be greater than the width of the non-coating area 205.

[0046] Furthermore, the limiting step 111 can be a continuous annular step extending circumferentially around the base 110, or a discontinuous step composed of a plurality of smaller steps arranged at intervals. Specifically in this embodiment, the positioning step 111 includes a plurality of step blocks 112, and the plurality of step blocks 112 are arranged at intervals along the circumference of the base 110.

[0047] The step block 112 is generally formed integrally with the base 110, and can also be fixed to the edge of the base 110 by welding or screw fastening. A step structure is formed on each step block 112, and the step structures on multiple step blocks 112 are combined to form the positioning step 111. It can be seen that the positioning step 111 is an intermittent step structure, so the first bearing surface 1111 and the second bearing surface 1112 are not continuous. In this way, the flatness requirements for the first bearing surface 1111 and the second bearing surface 1112 are relatively low, which helps the thickness surface 201 and the inner surface 202 to be reliably attached to the first bearing surface 1111 and the second bearing surface 1112.

[0048] The number and distribution positions of the step blocks 112 can be adjusted according to the size and shape of the curved thin-walled component 200. Figure 2 Figure 3As shown, for a substantially rectangular base 110 , the step blocks 112 may be distributed at the top corners of the base 110 , or may be distributed at the edges of the long sides and short sides of the base 110 .

[0049] The clamping mechanism 120 includes a clamping block 121. Moreover, the clamping block 121 can abut against the outer surface 201 of the curved thin-walled part 200 carried on the positioning step 111, and limit the curved thin-walled part 200 to the positioning step 111. The clamping block 121 is generally a metal block, and can abut against the curved thin-walled part 200 manually or automatically through a driving member.

[0050] After the curved thin-walled part 200 is initially positioned on the base 110, the clamping mechanism 120 is operated to make the clamping block 121 abut against the outer surface 201 of the curved thin-walled part 200 carried on the positioning step 111 until the curved thin-walled part 200 is limited to the positioning step 111, thereby clamping the curved thin-walled part 200. It can be seen that when the upper positioning carrier 100 positions the curved thin-walled part 200, it will neither leave suction marks nor damage the inner surface 202. Therefore, the above positioning carrier 100 can reliably position the curved thin-walled part 200.

[0051] Specifically, in this embodiment, the surface of the clamping block 121 used to abut against the curved thin-walled part 200 is configured as a contoured surface of the outer surface 201. In other words, when the clamping block 121 abuts against the outer surface 201 of the curved thin-walled part 200, the clamping block 121 can better fit the outer surface 201, thereby achieving a better abutting effect against the curved thin-walled part 200.

[0052] The clamping block 121 can limit the curved thin-walled component 200 to the positioning step 111 in a variety of ways. For example:

[0053] In this embodiment, the positioning carrier 100 further includes a limit block 130 , which is disposed on the positioning step 111 and opposite to the second bearing surface 1112 . The clamping block 121 can hold the curved thin-walled component 200 against the limit block 130 .

[0054] The limit block 130 is generally a metal block structure, which can be fixed by a threaded fastener and the positioning step 111. Specifically, the limit block 130 is installed on the step block 112. The clamping block 121 and the limit block 130 are arranged roughly opposite to each other. Therefore, when the clamping block 121 abuts against the curved thin-walled part 200, the curved thin-walled part 200 can be clamped between the clamping block 121 and the limit block 130, thereby achieving clamping.

[0055] Obviously, in other embodiments, multiple clamping mechanisms 120 may be provided in a relatively arranged manner, and the clamping blocks 121 of the multiple clamping mechanisms 120 may be pressed against each other to limit the curved thin-walled member 200. In addition, the abutting direction of the clamping blocks 121 may be adjusted to abut the curved thin-walled member 200 against the first bearing surface 1111 to achieve position limiting.

[0056] Please also read Figure 6 and Figure 7 In the present embodiment, a guiding inclined surface 131 is formed on one side of the limiting block 130 facing the second bearing surface 1112 , and the guiding inclined surface 131 extends from the top end of the limiting block 130 toward the second bearing surface 1112 .

[0057] The top end of the stopper 130 refers to the end of the stopper 130 away from the first bearing surface 1111, that is, the upper end shown in the figure. The guide slope 131 can be formed by oblique milling of the edge of the stopper 130. The guide slope 131 can play a guiding role when the curved thin-walled part 200 is placed on the positioning step 111, thereby helping the thickness surface 203 to be smoothly carried on the first bearing surface 1111.

[0058] Furthermore, in this embodiment, a spherical protrusion 132 is provided on the surface of the limiting block 130 facing the second bearing surface 1112 .

[0059] Specifically, a spherical block may be provided on the surface of the stop block 130 to form a spherical protrusion 132. When the clamping block 121 holds the curved thin-walled component 200 against the stop block 130, the spherical protrusion 132 will contact the outer surface of the curved thin-walled component 200. Therefore, there is point contact between the curved thin-walled component 200 and the stop block 130, and point contact can increase the clamping force, thereby achieving a better clamping effect on the curved thin-walled component 200. The guiding inclined surface 131 may be formed on the side of the spherical protrusion 132 that faces away from the first bearing surface 111.

[0060] In this embodiment, the clamping block 121 can elastically abut against the curved thin-walled component 200 supported on the positioning step 111 .

[0061] Elastic abutment means that the clamping block 121 can abut against the curved thin-walled part 200 under the action of elastic preload. Therefore, when the clamping block 121 abuts against the curved thin-walled part 200, the clamping block 121 can float elastically. On the one hand, it can avoid damage to the curved thin-walled part 200 due to excessive abutment force applied by the clamping block 121 to the curved thin-walled part 200. On the other hand, it can also make the clamping effect of the clamping block 121 on the curved thin-walled part 200 better.

[0062] Please also read Figure 4 and Figure 5In this embodiment, the clamping mechanism 120 of the positioning carrier 100 further includes a driving member 122, a guide shaft 123, a stopper 124 and an elastic member 125. Wherein:

[0063] The driving member 122 is fixed to the base 110. Specifically, the driving member 122 can be installed through a fixed seat (not marked in the figure). The driving member 122 can be a cylinder, and in order to simplify the structure of the clamping mechanism 120, a single-acting cylinder is selected. The guide shaft 123 is slidably arranged on the base 110. Specifically, the guide shaft 123 can be installed with the base 110 through a guide sleeve (not marked in the figure). Moreover, one end of the guide shaft 123 is fixedly connected to the driving end of the driving member 122, and the clamping block 121 is slidably sleeved on the guide shaft 123. Therefore, the guide shaft 123 cannot transmit the axial torque to the clamping block 121. Driven by the driving member 122, the guide shaft 123 can slide in the axial direction.

[0064] The stopper 124 may be a metal block structure. Moreover, the stopper 124 is fixedly connected to one end of the guide shaft 123 away from the driving member 122. Therefore, the stopper 124 can move as the guide shaft 123 slides. The elastic member 125 is disposed between the stopper 124 and the clamping block 121. The elastic member 125 may be a spring, an elastic pad or a spring sheet. Moreover, when the stopper 124 and the clamping block 121 are close to each other, the elastic member 125 provides a reverse force.

[0065] like Figure 4 As shown, when it is necessary to clamp the curved thin-walled part 200, the driving member 122 starts and drives the guide shaft 123 to slide to the right, so the stopper 124 will also move to the right and gradually approach the clamping block 121. At this time, the elastic member 125 generates a reverse force, and under the action of the reverse force, the clamping block 121 also moves to the right until it abuts against the curved thin-walled part 200. As the driving member 122 continues to drive to the right, the position of the clamping block 121 remains unchanged, and the reaction force of the elastic member 125 gradually increases. Finally, under the action of the elastic member 125, the clamping block 121 maintains abutment with the curved thin-walled part 200 to achieve elastic abutment.

[0066] Furthermore, in this embodiment, the clamping mechanism 120 further includes a connecting rod 126 and a toggle piece 127. Wherein:

[0067] The connecting rod 126 can be a metal round rod. The connecting rod 126 can be slidably inserted into the stopper 124 and is parallel to the guide shaft 123. One end of the connecting rod 126 is fixedly connected to the clamping block 121. Therefore, the actions of the connecting rod 126 and the clamping block 121 are synchronized. Specifically in this embodiment, the elastic member 125 is a compression spring, which is sleeved on the connecting rod 126 and clamped between the clamping block 121 and the stopper 124, and the connecting rod 126 can play a good supporting and guiding role for the elastic member 125.

[0068] Generally, two connecting rods 126 are provided and located on opposite sides of the guide shaft 123. In order to prevent the connecting rod 126 from being separated from the stopper 124, a limiting portion 1261 is formed at one end of the connecting rod 126 away from the clamping block 121. The limiting portion 1261 can be a disc-shaped structure with a larger diameter.

[0069] The toggle piece 127 can be a metal sheet with a large length or width. Therefore, it is convenient for operators to operate it. The toggle piece 127 is sleeved on the connecting rod 126 and is located on the side of the baffle that is away from the clamping block 121. Specifically, the toggle piece 127 can be fixed to the connecting rod 126, or it can be sleeved on the connecting rod 126 without movement, as long as the toggle piece 127 can drive the connecting rod 126 to move relative to the stopper 124. Specifically, the toggle piece 127 can drive the clamping block 121 to move closer to the stopper 124 through the connecting rod 126.

[0070] When the driving member 122 holds the clamping block 121 against the curved thin-walled member 200, there may be a certain deviation in the position of the curved thin-walled member 200. At this time, the operator can drive the connecting rod 126 to retreat by using the toggle plate 127. Figure 5 As shown in the leftward movement, the clamping block 121 will overcome the force of the elastic member 125 and synchronously retreat, so that the clamping mechanism 120 releases the curved thin-walled member 200 , and the operator can adjust the position of the curved thin-walled member 200 .

[0071] Obviously, in other embodiments, the limiting portion 1261 of the connecting rod 126 may also be provided in a plate-shaped structure, so that the operator can directly operate the connecting rod 126 without the aid of the toggle piece 127 .

[0072] For further information, please refer again to Figure 2 and Figure 3 In one embodiment, a limiting member 113 is provided on the base 110 , and the clamping block 121 can rotate around the guide shaft 123 driven by the toggle piece 127 until it forms a limit with the limiting member 113 .

[0073] Specifically, the position-limiting member 113 may be a protruding block-shaped structure, and the clamping block 121 may be rotated to abut against the structure, thereby being limited. After the clamping block 121 retreats under the drive of the toggle piece 127 and releases the curved thin-walled member 200, the toggle piece 127 may be operated so that the clamping block 121 and the position-limiting member 113 form a position limit. At this time, even if the operator releases the toggle piece 127, the clamping block 121 still cannot return to the state of abutting against the curved thin-walled member 200. In this way, it will be convenient for the operator to adjust the position of the curved thin-walled member 200 with both hands.

[0074] The positioning carrier 100 can use the positioning step 111 to carry the curved thin-walled part 200. Since the first bearing surface 1111 of the positioning step 111 is configured as a profiling surface of the thickness surface 203 of the curved thin-walled part 200, and the second bearing surface 1112 is configured as a profiling surface of the inner surface 202 of the curved thin-walled part 200, the curved thin-walled part 200 can be positioned on the base 110 by bearing the thickness surface 203 against the first bearing surface 1111 and the inner surface 202 against the second bearing surface. Then, the clamping mechanism 120 is operated and the clamping block 121 is made to abut against the outer surface 201 of the curved thin-walled part 200 carried on the positioning step 111, so that the curved thin-walled part 200 can be clamped. It can be seen that when the upper positioning carrier 100 positions the curved thin-walled part 200, it will neither leave suction marks nor damage the inner surface 202. Therefore, the positioning carrier 100 can reliably position the curved thin-walled component 200 .

[0075] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A positioning carrier (100) for positioning a curved thin-walled part (200), wherein the curved thin-walled part (200) comprises an outer surface (201), an inner surface (202), and a thickness surface (203) connecting the outer surface (201) and the inner surface (202), characterized in that: The positioning carrier (100) comprises: A base (110), wherein a positioning step (111) is arranged along the circumference of the base (110), the positioning step (111) having a first bearing surface (1111) and a second bearing surface (1112), the first bearing surface (1111) being configured as a profiling surface of the thickness surface (203), and the second bearing surface (1112) being configured as a profiling surface of the inner surface (202); the first bearing surface (1111) and the second bearing surface (1112) being connected; and The clamping mechanism (120) comprises a clamping block (121), wherein the clamping block (121) is capable of abutting against the outer surface (201) of the curved thin-walled component (200) supported on the positioning step (111), and limiting the curved thin-walled component (200) to the positioning step (111).

2. The positioning carrier (100) according to claim 1, characterized in that: The positioning step (111) comprises a plurality of step blocks (112), and the plurality of step blocks (112) are arranged at intervals along the circumference of the base (110).

3. The positioning carrier (100) according to claim 1, characterized in that: It also includes a limit block (130), which is arranged on the positioning step (111) and is arranged opposite to the second bearing surface (1112), and the clamping block (121) can hold the curved thin-walled part (200) against the limit block (130).

4. The positioning carrier (100) according to claim 3, characterized in that: A spherical protrusion (132) is provided on the surface of the limiting block (130) facing the second bearing surface (1112).

5. The positioning carrier (100) according to claim 3, characterized in that: A guiding inclined surface (131) is formed on one side of the limiting block (130) facing the second bearing surface (1112), and the guiding inclined surface (131) extends from the top end of the limiting block (130) toward the second bearing surface (1112).

6. The positioning carrier (100) according to claim 1, characterized in that: The surface of the clamping block (121) used for abutting against the curved thin-walled part (200) is configured as a contoured surface of the outer surface (201).

7. The positioning carrier (100) according to claim 1, characterized in that: The clamping block (121) can elastically abut against the curved thin-walled component (200) supported on the positioning step (111).

8. The positioning carrier (100) according to claim 7, characterized in that: The clamping mechanism (120) comprises: A driving member (122) fixed to the base (110); A guide shaft (123) is slidably disposed on the base (110), one end of the guide shaft (123) is fixedly connected to the driving end of the driving member (122), and the clamping block (121) is slidably sleeved on the guide shaft (123); A stopper (124) fixedly connected to an end of the guide shaft (123) away from the driving member (122); An elastic member (125) is arranged between the stop block (124) and the clamping block (121), and the elastic member (125) provides a reverse force when the stop block (124) and the clamping block (121) are close to each other.

9. The positioning carrier (100) according to claim 8, characterized in that: The clamping mechanism (120) further comprises: A connecting rod (126) is slidably disposed in the stopper (124) and is parallel to the guide shaft (123); one end of the connecting rod (126) is fixedly connected to the clamping block (121); The toggle plate (127) is sleeved on the connecting rod (126) and is located on a side of the stop block (124) facing away from the clamping block (121). The toggle plate (127) can drive the clamping block (121) to move closer to the stop block (124).

10. The positioning carrier (100) according to claim 9, characterized in that: A limiting piece is provided on the base (110), and the clamping block (121) can be rotated around the guide shaft (123) driven by the shifting piece (127) until it forms a limit position with the limiting piece.

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