Lampshade splicing tool

Abstract

The invention relates to the technical field of heavy lampshade assembly, in particular to a lampshade assembly tool which is used for heavy lampshade assembly welding and comprises a bottom plate, a positioning pin arranged in the middle of the bottom plate and an L-shaped supporting arm arranged on the side face of the bottom plate and further comprises an outer positioning part and an inner positioning part, the outer positioning part comprises a positioning block, and the positioning block is arranged on the bottom plate in a sliding mode. And the inner positioning part is arranged on the L-shaped supporting arm in a sliding mode, and the inner positioning part comprises two arc-shaped positioning plates. Through cooperation of related structures, after the base is placed, the arc-shaped plate can be clamped between the positioning block and the arc-shaped positioning plate, and meanwhile, the plane part and the arc-shaped part on the arc-shaped plate can abut against the plane section and the arc-shaped end on the positioning block correspondingly, so that when the lampshade is assembled, the base and the arc-shaped plate can be completely aligned, and the assembling efficiency of the lampshade is improved. And then the assembled lampshade can be welded through external welding equipment, so that the subsequent welding quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heavy lamp shade assembly, and particularly to a lamp shade assembly tooling. Background Art

[0002] Heavy lamp shades, with their sturdy materials, durability, and special designs, are widely used in various scenarios that require high strength, high protection, or special functions.

[0003] As Figure 1 shown, the lamp shade 7 is assembled and welded by a base 7-1 and two arc-shaped plates 7-2. Both the base 7-1 and the arc-shaped plates 7-2 have flat portions and arc-shaped portions. During the assembly process of the base 7-1 and the arc-shaped plates 7-2, an assembly tooling is required, and then an external welding device is used to weld the assembled lamp shade.

[0004] However, during the assembly process of the existing assembly tooling for the base and the arc-shaped plates, there are slight offsets between the flat portions and the arc-shaped portions on the base and those on the arc-shaped plates, resulting in the base and the arc-shaped plates not being able to be completely aligned. This causes welding defects during subsequent welding of the lamp shade, affecting the welding quality. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a lamp shade assembly tooling to solve the problem that the existing assembly tooling cannot completely align the base with the arc-shaped plates during the assembly of the lamp shade, resulting in easy deviation during subsequent welding and reducing the welding quality of the lamp shade.

[0006] Based on the above purpose, the present invention provides a lamp shade assembly tooling for the assembly and welding of heavy lamp shades, including a bottom plate, a positioning pin arranged in the middle of the bottom plate, and an L-shaped support arm arranged on the side of the bottom plate. It further includes: An outer positioning part, the outer positioning part includes a positioning block, and the positioning block is slidably arranged on the bottom plate. When the base is sleeved on the positioning pin, the end of the positioning block can simultaneously abut against the flat portion and the arc-shaped portion on the base, so that when assembling the lamp shade through the base, the base is perpendicular to the positioning block; An inner positioning part, the inner positioning part is slidably arranged on the L-shaped support arm, and the inner positioning part includes two arc-shaped positioning plates. When the arc-shaped plate is clamped between the positioning block and the arc-shaped positioning plates, the end of the positioning part can also simultaneously abut against the flat end and the arc-shaped end on the arc-shaped plate. At the same time, the arc-shaped positioning plate abuts against the inner wall of the arc-shaped end on the arc-shaped plate, so that when assembling the lamp shade through the two arc-shaped plates, the base and the arc-shaped plate can be aligned with each other.

[0007] Preferably, the number of the positioning blocks is at least two, and at least two positioning blocks are diagonally arranged on the bottom plate. The outer positioning portion further includes a slider and a spring. The slider is fixedly connected to the bottom of the positioning block. A chute for the slider to slide is formed on the bottom plate, and the spring is arranged in the chute to push the slider to move.

[0008] Preferably, a guiding angle, an arc end and a flat end are sequentially arranged at the end of the positioning block, and the arc end is located between the guiding angle and the flat end. The arc end is adapted to the arc portions on the base and the arc-shaped plate, and the flat end is adapted to the flat portions on the base and the arc-shaped plate.

[0009] Preferably, the inner positioning portion further includes a guiding rod. A hole for the guiding rod to penetrate is formed on the L-shaped support arm. The bottom end of the guiding rod is connected with a connecting plate, and the arc-shaped positioning plate is fixedly connected to the end of the connecting plate. A hydraulic cylinder I is installed on the L-shaped support arm, and the output end of the hydraulic cylinder I is fixedly connected with a transmission plate. The top end of the guiding rod is rotatably connected with the transmission plate through a bearing sleeve.

[0010] Preferably, a driving portion for driving the guiding rod to rotate is arranged on the L-shaped support arm, and a limiting portion is arranged on the connecting plate. After the lamp cover is assembled through the base and the arc-shaped plate and one side of the lamp cover is welded by an external welding device, the limiting portion can tightly abut against the inner wall of the lamp cover, and the driving portion can drive the guiding rod and the arc-shaped positioning plate to rotate, so as to drive the lamp cover to rotate, so as to weld the other side of the lamp cover.

[0011] Preferably, the driving portion includes a connecting sleeve rotatably connected in the hole. A limiting strip extends inwards from the inner wall of the connecting sleeve. A limiting groove adapted to the limiting strip is formed on the guiding rod. A driving machine is installed on the L-shaped support arm, and belt wheels are fixedly sleeved on the output end of the driving machine and the connecting sleeve respectively, and the two belt wheels are connected by a belt in a transmission manner.

[0012] Preferably, the limiting portion includes a rectangular sleeve with a hollow interior. The rectangular sleeve is fixed on the connecting plate. A moving plate is slidably inserted into the rectangular sleeve. An abutting plate is fixedly connected to the end of the moving plate. A plurality of strip-shaped grooves are formed on the abutting plate to increase the roughness of the surface of the abutting plate.

[0013] Preferably, a sliding sleeve is slidably sleeved on the guiding rod. A connecting rod is hinged between the sliding sleeve and the moving plate through a hinge seat. A through groove for the hinge seat to move is formed on the rectangular sleeve. A hydraulic cylinder II is installed on the connecting plate, and the output end of the hydraulic cylinder II is connected with the sliding sleeve through a cross bar.

[0014] The beneficial effects of the present invention are as follows: Through the settings of the positioning block, spring, guiding angle, flat end and arc end, under the push of the spring, the flat end on the positioning block can be pushed to abut against the flat part on the base, enabling the base to be perpendicular to the positioning block, avoiding the base being placed obliquely on the bottom plate. And through the setting of the arc-shaped positioning plate, after the base is placed, the arc-shaped plate can be clamped between the positioning block and the arc-shaped positioning plate. At the same time, the flat part and the arc part on the arc-shaped plate can also respectively abut against the flat section and the arc end on the positioning block, enabling the base and the arc-shaped plate to be completely aligned when assembling the lamp shade. Subsequently, an external welding device can be used to weld the assembled lamp shade, improving the subsequent welding quality.

[0015] Through the settings of the rectangular sleeve, moving plate, abutting plate, sliding sleeve, connecting rod and hydraulic cylinder 2, after one side of the lamp shade is welded by an external welding device (that is, the front side is welded first because the front side is convenient for the operator to weld and the rear side is located at the back and not easy to see), the hydraulic cylinder 2 drives the sliding sleeve to move downwards. The downward movement of the sliding sleeve, under the transmission of the connecting rod, will drive the abutting plate to move outwards, enabling the abutting plate to tightly abut against the inner wall of the lamp shade, that is, fixing the lamp shade from the inside. And through the settings of the driving machine, connecting sleeve and limiting strip, the rotation of the output end of the driving machine can drive the connecting sleeve to rotate. And through the cooperation of the limiting strip and the limiting groove, it will not affect the up and down movement of the guiding rod. Thus, under the cooperation of the limiting strip and the limiting groove, the guiding rod can be driven to rotate. Under the cooperation of the guiding angle and the spring, the positioning block does not affect the rotation of the lamp shade, so that the lamp shade that has been welded halfway (that is, the front side has been welded and the rear side has not been welded) can be driven to rotate, facilitating the welding of the other side of the lamp shade (that is, welding the rear side of the lamp shade), improving the welding efficiency.

[0016] Third, after welding both the front and rear sides of the lamp shade, the hydraulic cylinder 1 can drive the guiding rod to move upwards, thereby driving the welded lamp shade to move upwards. Subsequently, it can be taken with the cooperation of an external manipulator, and at the same time, the base can continue to be placed on the bottom plate for assembling the next lamp shade, improving the working efficiency. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the lamp shade in the background technology of the present invention; Figure 2 It is a schematic structural diagram of the embodiment of the present invention; Figure 3Schematic diagram of the process of assembling the lamp shade according to an embodiment of the present invention; Figure 4 Schematic diagram of the structure after assembling the tooling and the lamp shade according to an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the outer positioning portion according to an embodiment of the present invention; Figure 6 Schematic diagram of the structure of the inner positioning portion according to an embodiment of the present invention; Figure 7 Schematic diagram of the structure of the driving portion according to an embodiment of the present invention; Figure 8 Schematic diagram of the structure of the limiting portion according to an embodiment of the present invention.

[0019] In the figure: 1, bottom plate; 2, L-shaped support arm; 3, outer positioning portion; 3-1, positioning block; 3-2, slider; 3-3, spring; 3-4, arc end; 3-5, flat end; 4, inner positioning portion; 4-1, arc-shaped positioning plate; 4-2, guide rod; 4-3, connecting plate; 4-4, hydraulic cylinder 1; 5, driving portion; 5-1, connecting sleeve; 5-2, limiting strip; 5-3, driving machine; 6, limiting portion; 6-1, rectangular sleeve; 6-2, moving plate; 6-3, abutting plate; 6-4, sliding sleeve; 6-5, connecting rod; 6-6, hydraulic cylinder 2; 7, lamp shade; 7-1, base; 7-2, arc-shaped plate. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0021] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings understood by those of ordinary skill in the technical field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0022] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、Figure 6 , Figure 7 , Figure 8 As shown in Figure 8 , a lamp shade assembly tool for heavy-duty lamp shade assembly and welding includes a bottom plate 1, a positioning pin disposed in the middle of the bottom plate 1, and an L-shaped support arm 2 disposed on the side of the bottom plate 1. It further includes: an outer positioning portion 3, the outer positioning portion 3 includes a positioning block 3-1, and the positioning block 3-1 is slidably disposed on the bottom plate 1. When the base sleeve 7-1 is disposed on the positioning pin, the end of the positioning block 3-1 can simultaneously abut against the flat portion and the arc portion on the base 7-1, so that when assembling the lamp shade 7 through the base 7-1, the base 7-1 and the positioning block 3-1 are perpendicular to each other; an inner positioning portion 4, the inner positioning portion 4 is slidably disposed on the L-shaped support arm 2, and the inner positioning portion 4 includes two arc-shaped positioning plates 4-1. When the arc plate 7-2 is clamped between the positioning block 3-1 and the arc-shaped positioning plate 4-1, the end of the positioning block 3-1 can also simultaneously abut against the flat portion and the arc portion on the arc plate 7-2. At the same time, the arc-shaped positioning plate 4-1 abuts against the inner wall of the arc portion on the arc plate 7-2, so that when assembling the lamp shade 7 through the two arc plates 7-2, the base 7-1 and the arc plate 7-2 can be aligned with each other.

[0023] Through the arrangement of the positioning block 3-1 and the arc-shaped positioning plate 4-1, when assembling the lamp shade 7, first place the base 7-1 on the positioning pin to achieve the preliminary positioning of the base 7-1. Subsequently, under the push of the positioning block 3-1, the base 7-1 is perpendicular to the positioning block 3-1. Then, lower the arc-shaped positioning plate 4-1 so that the bottom end of the arc-shaped positioning plate 4-1 contacts the base 7-1. Subsequently, insert the arc plate 7-2 into the space between the positioning block 3-1 and the arc-shaped positioning plate 4-1, so that the positioning block 3-1 can simultaneously abut against the flat portion and the arc portion on the base 7-1 and the arc plate 7-2. The arc-shaped positioning plate 4-1 plays a role in limiting and fixing the left and right positions (assuming the length direction of the lamp shade is the left and right positions) of the arc plate 7-2, and the cooperation of the positioning block 3-1 and the arc-shaped positioning plate 4-1 plays a role in limiting and fixing the front and back positions of the arc plate 7-2, so as to achieve that when assembling the lamp shade 7, the base 7-1 and the arc plate 7-2 can be completely aligned, which is convenient for welding the lamp shade 7 after assembly.

[0024] In a preferred embodiment of the present invention, the number of the positioning blocks 3-1 is at least two, and at least two positioning blocks 3-1 are diagonally arranged on the bottom plate 1, and the positioning blocks 3-1 are disposed at the corners of the flat portion and the arc portion of the base 7-1. The outer positioning portion 3 further includes a slider 3-2 and a spring 3-3. The slider 3-2 is fixedly connected to the bottom of the positioning block 3-1. A chute for the slider 3-2 to slide is provided on the bottom plate 1, and the spring 3-3 is disposed in the chute for pushing the slider 3-2 to move.

[0025] The base 7-1 is sleeved on the positioning pin. Through the diagonal arrangement of the two positioning blocks 3-1, under the pushing force of the elastic force of the spring 3-3, the flat part on the base 7-1 contacts the positioning block 3-1, and the two are perpendicular to each other, so that the base 7-1 is stably located between the two positioning blocks 3-1, avoiding the base 7-1 from being placed obliquely on the bottom plate 1.

[0026] In another preferred embodiment of the present invention, the end of the positioning block 3-1 is sequentially provided with a guiding angle, an arc end 3-4 and a flat end 3-5, and the arc end 3-4 is located between the guiding angle and the flat end 3-5. The arc end 3-4 is adapted to the arc parts on the base 7-1 and the arc plate 7-2, and the flat end 3-5 is adapted to the flat parts on the base 7-1 and the arc plate 7-2.

[0027] Since the positioning block 3-1 is arranged at the corner of the base 7-1 (i.e., the connection part of the flat part and the arc part), under the pushing force of the elastic force of the spring 3-3, the flat end 3-5 and the arc end 3-4 on the positioning block 3-1 can respectively abut against the flat part and the arc part on the base 7-1 and the arc plate 7-2, thereby realizing the limit positioning of the base 7-1 and the arc plate 7-2. And because the positioning block 3-1 is arranged at the corner of the base 7-1 and the arc plate 7-2, and the guiding angle is provided on the positioning block 3-1, when the lamp cover 7 is driven to rotate and change the surface later (that is, after welding is completed on the front side and it needs to be rotated from the front side to the back side), the base can overcome the pushing force of the spring 3-3 and push the positioning block 3-1 to move, so that the positioning block 3-1 does not prevent the rotation of the lamp cover, which is convenient for welding the back side of the lamp cover 7.

[0028] In still another preferred embodiment of the present invention, the inner positioning part 4 further includes a guiding rod 4-2. The guiding rod 4-2 is coaxially arranged with the positioning pin, so that the guiding rod 4-2 can drive the lamp cover 7 to rotate around the positioning pin. A hole for the guiding rod 4-2 to pass through is opened on the L-shaped support arm 2, and the bottom end of the guiding rod 4-2 is connected with a connecting plate 4-3, and the arc-shaped positioning plate 4-1 is fixedly connected to the end of the connecting plate 4-3. A hydraulic cylinder 4-4 is installed on the L-shaped support arm 2, and the output end of the hydraulic cylinder 4-4 is fixedly connected with a transmission plate, and the top end of the guiding rod 4-2 is rotatably connected with the transmission plate through a bearing sleeve; After the positioning of the base 7-1 is completed, it is necessary to move the arc-shaped positioning plate 4-1 downward to facilitate the arc plate 7-2 to be clamped into the positioning block 3-1 and the arc-shaped positioning plate 4-1. Start the hydraulic cylinder 4-4, and the hydraulic cylinder 4-4 drives the guiding rod 4-2 to move downward through the transmission plate, thereby driving the arc-shaped positioning plate 4-1 to move downward, which is convenient for clamping the arc plate between the positioning block 3-1 and the arc-shaped positioning plate 4-1.

[0029] The L-shaped support arm 2 is provided with a driving part 5 for driving the guide rod 4-2 to rotate. The connecting plate 4-3 is provided with a limiting part 6. After the lamp cover 7 is assembled through the base 7-1 and the arc plate 7-2, and one side of the lamp cover is welded by an external welding device, the limiting part 6 can tightly abut against the inner wall of the lamp cover 7. The driving part 5 can drive the guide rod 4-2 and the arc positioning plate 4-1 to rotate, so as to drive the lamp cover 7 to rotate, so as to realize the welding of the other side of the lamp cover 7.

[0030] When the base 7-1 and the arc plate 7-2 are assembled to form the lamp cover 7, since the front side of the lamp cover 7 faces the outside, it is convenient for the operator to use an external welding device to weld the front side of the lamp cover 7. Since the rear side of the lamp cover 7 faces away from the operator and is not convenient for operation, at this time, the limiting part 6 can be used to fix the lamp cover 7 that has been welded halfway from the inside. Subsequently, the driving part 5 is used to drive the fixed lamp cover to rotate. Since the positioning block 3-1 is arranged at the corner of the lamp cover 7 and is also provided with a guiding angle, the positioning block 3-1 does not prevent the rotation of the lamp cover 7, so that the un-welded part of the rear side of the lamp cover 7 can be rotated to the front side, which is convenient for the operator to weld it with an external welding device. After the welding is completed, the hydraulic cylinder 4-4 can be started to drive the guide rod 4-2 and the welded lamp cover 7 to move upward. Subsequently, with the cooperation of an external manipulator, the welded lamp cover 7 can be removed. At the same time, the base 7-1 can be placed on the bottom plate 1 to assemble the next lamp cover 7, improving the efficiency.

[0031] It should be noted that the driving part 5 includes a connecting sleeve 5-1 rotatably connected in the hole, and a limiting strip 5-2 extends inward from the inner wall of the connecting sleeve 5-1. A limiting groove adapted to the limiting strip 5-2 is formed on the guide rod 4-2. A driving machine 5-3 is installed on the L-shaped support arm 2. The driving machine 5-3 is an integrated structure of a motor and a reducer. The setting of the reducer avoids the too high rotation speed when the motor starts. A belt pulley is fixedly sleeved on both the output end of the driving machine 5-3 and the connecting sleeve 5-1, and the two belt pulleys are connected by a belt transmission.

[0032] When the front side of the lamp cover 7 is welded and the lamp cover 7 needs to be rotated to weld the rear side of the lamp, first, the limiting part 6 is used to limit and fix it from the lamp cover 7. Subsequently, the driving machine 5-3 is started. Under the driving action of the belt pulley and the belt, the rotation of the driving machine 5-3 will drive the connecting sleeve 5-1 to rotate. Since the limiting strip 5-2 is arranged inside the connecting sleeve 5-1 and the limiting groove adapted to the limiting strip 5-2 is arranged on the guide rod 4-2, the rotation of the connecting sleeve 5-1 will drive the guide rod 4-2 to drive. Since the guide rod 4-2 is rotatably connected to the transmission plate, the transmission plate does not prevent the rotation of the guide rod 4-2, thus driving the lamp cover to rotate, which is convenient for rotating the rear side of the lamp cover 7, that is, the un-welded part, to face the operator, and is convenient for the operator to weld it with an external welding device, improving the welding efficiency.

[0033] It should be noted that the limiting part 6 includes a rectangular sleeve 6-1 with a hollow interior. The rectangular sleeve 6-1 is fixed on the connecting plate 4-3, and a moving plate 6-2 is slidably inserted into the rectangular sleeve 6-1. An abutting plate 6-3 is fixedly connected to the end of the moving plate 6-2, and a plurality of strip-shaped grooves are formed in the abutting plate 6-3 to increase the surface roughness of the abutting plate 6-3. A sliding sleeve 6-4 is slidably sleeved on the guide rod 4-2. A connecting rod 6-5 is hinged between the sliding sleeve 6-4 and the moving plate 6-2 through a hinge seat. The rectangular sleeve 6-1 is provided with a through groove for the movement of the hinge seat. A second hydraulic cylinder 6-5 is installed on the connecting plate 4-3, and the output end of the second hydraulic cylinder 6-5 is connected to the sliding sleeve through a cross bar.

[0034] When it is necessary to limit and fix the lamp shade 7 from the inside, start the second hydraulic cylinder 6-5. The second hydraulic cylinder 6-5 drives the sliding sleeve 6-4 to slide downward on the guide rod 4-2. When the sliding sleeve 6-4 moves downward and is pushed by the connecting rod 6-5, it will push the moving plate 6-2 to extend out of the rectangular sleeve 6-1, so that the abutting plate 6-3 can tightly abut against the inner wall of the lamp shade 7, realizing the limiting and fixing of the lamp shade 7.

[0035] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0036] Embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A lampshade assembly tool, used for assembling and welding heavy lampshades, comprising a base plate (1), a positioning pin arranged in the middle of the base plate (1), and an L-shaped support arm (2) arranged on the side of the base plate (1), characterized in that: Also includes: An external positioning portion (3), the external positioning portion (3) comprising a positioning block (3-1), and the positioning block (3-1) is slidably arranged on the bottom plate (1), and when the base (7-1) is sleeved on the positioning pin, the end of the positioning block (3-1) can simultaneously abut against the flat portion and the arc portion on the base (7-1), so that when the lampshade (7) is assembled through the base (7-1), the base (7-1) and the positioning block (3-1) are perpendicular to each other; an internal positioning portion (4), the internal positioning portion (4) is slidably arranged on the L-shaped support arm (2), and The inner positioning portion (4) comprises two arc-shaped positioning plates (4-1); when the arc-shaped plate (7-2) is clamped between the positioning block (3-1) and the arc-shaped positioning plate (4-1), the end of the positioning block (3-1) can also abut against the plane portion and the arc-shaped portion on the arc-shaped plate (7-2) at the same time; at the same time, the arc-shaped positioning plate (4-1) abuts against the inner wall of the arc-shaped portion on the arc-shaped plate (7-2), so that when the lampshade (7) is assembled by the two arc-shaped plates (7-2), the base (7-1) and the arc-shaped plate (7-2) can be aligned with each other.

2. A lampshade assembly tool according to claim 1, characterized in that: The number of the positioning blocks (3-1) is at least two, and the at least two positioning blocks (3-1) are diagonally arranged on the bottom plate (1). The external positioning portion (3) further comprises a slider (3-2) and a spring (3-3). The slider (3-2) is fixedly connected to the bottom of the positioning block (3-1). The bottom plate (1) is provided with a slide groove for the slider (3-2) to slide, and the spring (3-3) is arranged in the slide groove for pushing the slider (3-2) to move.

3. The lampshade assembly tool according to claim 1, characterized in that: The end of the positioning block (3-1) is provided with a guide angle, an arc end (3-4) and a plane end (3-5) in sequence, and the arc end (3-4) is located between the guide angle and the plane end (3-5), the arc end (3-4) is adapted to the base (7-1) and the arc portion on the arc plate (7-2), and the plane end (3-5) is adapted to the base (7-1) and the plane portion on the arc plate (7-2).

4. The lampshade assembly tool according to claim 1, characterized in that: The inner positioning portion (4) further comprises a guide rod (4-2), a hole for the guide rod (4-2) to pass through is provided on the L-shaped support arm (2), the bottom end of the guide rod (4-2) is connected to a connecting plate (4-3), and the arc-shaped positioning plate (4-1) is fixedly connected to the end of the connecting plate (4-3), a hydraulic cylinder 1 (4-4) is installed on the L-shaped support arm (2), and the output end of the hydraulic cylinder 1 (4-4) is fixedly connected to a transmission plate, and the top end of the guide rod (4-2) is rotatably connected to the transmission plate via a bearing sleeve.

5. The lampshade assembly tool according to claim 4, characterized in that: The L-shaped support arm (2) is provided with a driving portion (5) for driving the guide rod (4-2) to rotate, and the connecting plate (4-3) is provided with a limiting portion (6). After the lampshade (7) is assembled by the base (7-1) and the arc plate (7-2), and one side of the lampshade is welded by an external welding device, the limiting portion (6) can be tightly abutted against the inner wall of the lampshade (7), and the driving portion (5) can drive the guide rod (4-2) and the arc positioning plate (4-1) to rotate, thereby driving the lampshade (7) to rotate, so as to achieve welding on the other side of the lampshade (7).

6. The lampshade assembly tool according to claim 5, characterized in that: The driving part (5) comprises a connecting sleeve (5-1) rotatably connected in the hole, and the inner wall of the connecting sleeve (5-1) extends inwardly to form a limit strip (5-2), and the guide rod (4-2) is provided with a limit slot matched with the limit strip (5-2). The L-shaped support arm (2) is provided with a driving machine (5-3), and the output end of the driving machine (5-3) and the connecting sleeve (5-1) are both fixedly provided with pulleys, and the two pulleys are connected by a belt drive.

7. The lampshade assembly tool according to claim 5, characterized in that: The limiting portion (6) comprises a rectangular sleeve (6-1) with a hollow interior, the rectangular sleeve (6-1) being fixed on the connecting plate (4-3), a movable plate (6-2) being slidably inserted in the rectangular sleeve (6-1), an end of the movable plate (6-2) being fixedly connected to an abutment plate (6-3), and a plurality of strip grooves are provided on the abutment plate (6-3) to increase the roughness of the surface of the abutment plate (6-3).

8. The lampshade assembly tool according to claim 7, characterized in that: The guide rod (4-2) is provided with a sliding sleeve (6-4) on the sliding sleeve, a connecting rod (6-5) is hingedly connected between the sliding sleeve (6-4) and the movable plate (6-2) via a hinge seat, and the rectangular sleeve (6-1) is provided with a through groove for the hinge seat to move, and a second hydraulic cylinder (6-6) is installed on the connecting plate (4-3), and the output end of the second hydraulic cylinder (6-6) is connected to the sliding sleeve via a cross bar.

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