CN212441724U

CN212441724U - Clamping device for spraying production line

Info

Publication number: CN212441724U
Application number: CN201922445005.6U
Authority: CN
Inventors: 何异海; 莫庆祝
Original assignee: Foshan Sanshui Fenglu Aluminium Co Ltd; Guangdong Fenglu Aluminium Co Ltd
Current assignee: Foshan Sanshui Fenglu Aluminium Co Ltd; Guangdong Fenglu Aluminium Co Ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2021-02-02
Anticipated expiration: 2029-12-28

Abstract

The utility model discloses a clamping device applied in the technical field of aluminum profile spraying, which comprises a frame; a guide rail is arranged on the frame along the length direction of the frame; the guide rail is connected with a sliding block in a sliding way; the sliding block is provided with a clamping component; the clamping assembly comprises a transmission block, a clamping block and a driving block; the transmission block comprises a rotating shaft, an eccentric wheel, a connecting arm, a connecting shaft and a rotating sleeve set which are vertically arranged; the rotating sleeve set comprises a fixed sleeve and a rotating sleeve; the outer wall of the rotating sleeve is provided with threads around the periphery of the rotating sleeve; a rack block is arranged on the rack along the guide of the guide rail; the rack block is meshed with the thread of the rotating sleeve; one end of the connecting shaft, which is far away from the connecting arm, extends outwards in the circumferential direction to form a butting block; the clamping block comprises a clamping mechanism and a mounting block. This application has provided clamping device's that spraying production line used structure promptly, its effectual anchor clamps function singleness of having solved, can't adapt to the aluminium alloy of all kinds of sizes, aluminium alloy washs and the problem of spraying inefficiency and need artifical supplementary.

Description

Clamping device for spraying production line

Technical Field

The utility model relates to an aluminium alloy spraying technical field particularly, relates to a clamping device that spraying production line was used.

Background

The surface of the aluminum profile is more attractive by frequently adopting surface treatment processes such as anodic oxidation, electrolytic coloring, electrophoretic coating and the like in the manufacturing process, and the aluminum profile needs to be pretreated, namely the surface of the aluminum profile is cleaned and then enters a powder room for spraying operation when the surface of the aluminum profile is treated. In the traditional aluminum profile spraying process, a through hole is drilled at one end of an aluminum profile for clamping the aluminum profile, and then a lifting hook penetrates through the through hole to hang the aluminum profile, so that the aluminum profile is cleaned and sprayed. However, in this process, the end of the aluminum profile where the through hole is drilled needs to be cut at the later stage, which results in material waste. Therefore, adopt anchor clamps to cooperate in current processing to snatch the aluminium alloy, typical or common prior art has:

for example, CN110038753A discloses a special clamp for an aluminum profile spraying process and a special clamp for pretreatment of a sprayed profile, the special clamp for the aluminum profile spraying process and the special clamp for pretreatment of the sprayed profile realize an automatic clamping effect, has a simple structure, is convenient to assemble and smooth to press, can effectively protect a clamped object, can be hung by using a hanging hole on a hanging rod, and is greatly convenient for spraying the profile. Another kind of classic like CN204135935U, discloses a fixture head, through installing ceramic clip post on pressing from both sides the mouth medial surface to reduce sheltering from when anchor clamps are to the aluminium alloy centre gripping, promote the surface treatment quality of aluminium alloy, the high temperature resistance of the double-layered post piece that ceramic material made is good moreover, difficult fracture takes place, and the durability is good, thereby makes this fixture head have simple structure, the reliability is high, long service life. Referring to CN109396003A, the invention improves the die and extrusion process used in the existing aluminum profile extrusion process, and the improved powder spraying system does not have the phenomenon that powder is sprayed outwards in the using process, so that the environment of the plastic spraying workshop is improved, workers are prevented from being threatened by the spilled powder to body parts such as respiratory tract, and the like, and the invention is more environment-friendly and sanitary.

In summary, through the mass search of the applicant, the problem that the clamping apparatus in the field has at least a single function, cannot adapt to aluminum profiles of various sizes, cannot improve the cleaning and spraying efficiency, and needs manual assistance exists, and therefore, the clamping apparatus for the spraying production line needs to be developed or improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamping device that spraying production line was used is in order to solve the problem.

In order to achieve the above object, the utility model provides a clamping device for a spraying production line, which comprises a frame; the rack is provided with a guide rail along the length direction; the guide rail is connected with a sliding block in a sliding manner; the sliding block is provided with a clamping assembly; the clamping assembly comprises a transmission block, a clamping block and a driving block for driving the clamping block to move up and down; the transmission block comprises a rotating shaft, an eccentric wheel, a connecting arm, a connecting shaft and a rotating sleeve set, wherein the connecting shaft and the rotating sleeve set are vertically arranged; one end of the rotating shaft is connected with the output end of the driving block, and the other end of the rotating shaft is connected with the eccentric wheel; one end of the connecting arm is hinged with the output end of the eccentric wheel, and the other end of the connecting arm is hinged with the connecting shaft; the connecting shaft penetrates through the rotating sleeve set; the rotating sleeve set comprises a fixed sleeve sleeved on the connecting shaft and a rotating sleeve sleeved on the fixed sleeve and capable of rotating relative to the fixed sleeve; the outer wall of the rotating sleeve is provided with threads around the periphery of the rotating sleeve; the rotating sleeve is provided with a connecting block; one end of the connecting block, which is far away from the rotating sleeve, extends to the side of one end of the connecting shaft, which is far away from the connecting arm; a rack block is arranged on the rack along the guide of the guide rail; the rack block is in meshed connection with the thread of the rotating sleeve; the sliding block is also provided with a fixed rod; one end of the fixed rod, which is far away from the sliding block, is connected with the fixed sleeve; one end of the connecting shaft, which is far away from the connecting arm, extends outwards in the circumferential direction to form a butting block; the clamping block comprises a clamping mechanism for clamping the aluminum profile and an installation block abutted against the abutting block; one end of the mounting block is connected with the connecting shaft in a sliding manner and rotates synchronously, and the other end of the mounting block is connected with the connecting block in a sliding manner; the clamping mechanism is arranged on the mounting block.

Preferably, a plurality of rolling bearings are arranged in the rotating sleeve; the rolling bearings are sleeved on the fixing sleeve.

Preferably, a channel penetrating through two end faces of the fixing sleeve is arranged in the fixing sleeve; the connecting shaft is connected in the channel in a penetrating manner; the fixing sleeve comprises a first connecting part and a second connecting part which are sequentially connected from top to bottom; the rotating sleeve is sleeved on the second connecting part.

Preferably, the peripheral side of the top of the rotating sleeve extends outwards to form an eave extension part; the eave exhibition part is provided with a first mounting hole; the peripheral side of the middle part of the rotating sleeve extends outwards to form an outer edge part; a second mounting hole which is coaxial with the first mounting hole is formed in the outer edge part; the eave extension part is positioned above the outer edge part; one end of the connecting block, which is far away from the mounting block, penetrates through the second mounting hole and is inserted into the first mounting hole.

Preferably, the outer contour of the connecting block is a strip shape.

Preferably, the clamping mechanism comprises a base, a first clamping block arranged on the base, a second clamping block matched with the first clamping block, and a driving device for controlling the first clamping block and the second clamping block to close and clamp the aluminum profile.

Preferably, the first clamp block and the second clamp block form a first clamp group; the clamping mechanism further comprises a second clamp group with the same structure as the first clamp group; the first clamp group and the second clamp group are arranged side by side along the length direction of the base.

Preferably, the clamping mechanism further comprises a cantilever; the base further comprises a suspension block; one end of the cantilever is connected with the mounting block, and the other end of the cantilever is connected with the suspension block; the suspension block is provided with a connecting column penetrating through two end faces of the suspension block; positioning blocks are sleeved on two ends of the connecting column; a first mounting space and a second mounting space are formed between the two positioning blocks and the hanging block respectively; the first clamp group is positioned in the first mounting space, and the first clamp and the second clamp are respectively positioned on two sides of the connecting column and are hinged with the positioning block; the second clamp group is located in the second installation space.

Preferably, a first correcting block, a second correcting block and a third correcting block are arranged on the connecting column; the first correcting block and the second correcting block are respectively positioned at two ends of the connecting column, and the third correcting block is positioned at the middle point of the connecting column; the first jaw set is positioned between the first orthotic block and a third orthotic block; the second jaw set is positioned between the second orthotic block and a third orthotic block.

Preferably, the connecting column extends to form a clamping position towards the first clamping block and the second clamping block, and the position of the connecting column corresponding to the first correcting block, the second correcting block and the third correcting block extends to form a supporting block; an adjusting hole is formed in the supporting block; the top of the supporting block is provided with an opening communicated with the adjusting hole; the first correcting block, the second correcting block and the third correcting block are respectively inserted into the adjusting holes; the first correcting block, the second correcting block and the third correcting block respectively comprise a connecting part inserted in the adjusting hole and a limiting part positioned outside the adjusting hole; the connecting part is connected with the limiting part; two outward inclined planes are formed on one end face of the limiting part far away from the connecting part; the inclined plane is provided with an installation groove; and anti-skidding blocks are arranged in the mounting grooves.

Above-mentioned technical scheme provides a clamping device that spraying production line used, compares with prior art, its beneficial effect includes:

1. the utility model provides an aluminium alloy of anchor clamps function singleness, unable adaptation all kinds of sizes, wash and the spraying inefficiency and need artifical supplementary problem

2. The utility model discloses utilize the cooperation of rotatory suit, eccentric wheel, connecting axle and connecting block to realize the elevating movement and the rotary motion of connecting axle, solved elevating movement and rotary motion can not go on in step the problem.

3. The utility model discloses a fixture, the aluminium alloy of any size of centre gripping that can stabilize, application range is wider, is convenient for popularize. The lifting of the connecting shaft controls the clamping mechanism to clamp the aluminum profile to enter and exit the cleaning liquid or to polish chemically, and the rotating inertia is utilized to improve the surface treatment uniformity or spraying effect of the aluminum profile.

4. The utility model discloses often cooperate the assembly line to use, carry a plurality of clamping device through conveyor, the washing and the spraying efficiency of aluminium alloy are handled to the efficient simultaneously.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

Fig. 1 is a schematic structural view of a clamping device for a spraying production line in embodiments 1-2 of the present invention;

fig. 2 is one of the schematic structural diagrams of a clamping assembly of a clamping device for a spraying production line in embodiments 1-2 of the present invention;

fig. 3 is a second schematic structural view of a clamping assembly of a clamping device for a painting production line according to embodiments 1-2 of the present invention;

fig. 4 is a schematic structural view of a clamping mechanism of a clamping device for a spraying production line according to embodiments 1-2 of the present invention;

fig. 5 is a partial structural view of a in fig. 4.

Description of reference numerals: 1-a frame; 2-a guide rail; 3-a slide block; 4-a transmission block; 41-rotation axis; 42-eccentric wheel; 43-linker arm; 44-a connecting shaft; 45-rotating the set; 451-a fixed sleeve; 452-a rotating sleeve; 5-a clamping block; 51-a clamping mechanism; 52-a mounting block; 6-a drive block; 7-rack block; 8-fixing the rod; 9-a butt block; 10-connecting blocks; 11-eave extension part; 12-an outer rim portion; 13-a base; 14-a first clamp block; 15-a second clamp block; 16-a drive device; 17-a cantilever; 18-a suspension block; 19-connecting column; 20-positioning blocks; 21-a first orthotic block; 22-a second orthotic block; 23-a third orthotic block; 24-a mounting groove; 25-anti-skid blocks; 26-a limiting part; 27-adjustment holes.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention will be further described in detail with reference to the following embodiments thereof; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc., indicating directions or positional relationships based on those shown in the drawings, it is only for convenience of description and simplicity of description, but not for indicating or implying that the indicated device or component must have a specific direction, be constructed in a specific direction, and operate, and therefore the terms describing the positional relationships in the drawings are used for illustrative purposes only and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the above terms according to specific situations.

The first embodiment is as follows:

a clamping device for a spraying production line as shown in fig. 1 to 5, which comprises a frame 1; a guide rail 2 is arranged on the rack 1 along the length direction of the rack; the guide rail 2 is connected with a slide block 3 in a sliding way; a clamping component is arranged on the sliding block 3; the clamping assembly comprises a transmission block 4, a clamping block 5 and a driving block 6 for driving the clamping block 5 to move up and down; the transmission block 4 comprises a rotating shaft 41, an eccentric wheel 42, a connecting arm 43, a connecting shaft 44 and a rotating set 45 which are vertically arranged; one end of the rotating shaft 41 is connected with the output end of the driving block 6, and the other end is connected with the eccentric wheel 42; one end of the connecting arm 43 is hinged with the output end of the eccentric wheel 42, and the other end is hinged with the connecting shaft 44; the connecting shaft 44 is disposed through the rotating set 45; the rotating set 45 comprises a fixed sleeve 451 sleeved on the connecting shaft 44, and a rotating sleeve 452 sleeved on the fixed sleeve 451 and capable of rotating relative to the fixed sleeve 451; the outer wall of the rotating sleeve 452 is provided with threads around the periphery; the rotating sleeve 452 is provided with a connecting block 10; one end of the connecting block 10, which is far away from the rotating sleeve 452, extends to the side of one end of the connecting shaft 44, which is far away from the connecting arm 43; a rack block 7 is arranged on the rack 1 along the guide of the guide rail 2; the rack block 7 is in threaded engagement connection with the rotating sleeve 452; the slide block 3 is also provided with a fixed rod 8; one end of the fixed rod 8 far away from the sliding block 3 is connected with the fixed sleeve 451; an abutting block 9 extends outwards from one end, far away from the connecting arm 43, of the connecting shaft 44 in the circumferential direction; the clamping block 5 comprises a clamping mechanism 51 for clamping the aluminum profile and a mounting block 52 abutted against the abutting block 9; one end of the mounting block 52 is connected with the connecting shaft 44 in a sliding manner and rotates synchronously, and the other end is connected with the connecting block 10 in a sliding manner; the clamping mechanism 51 is mounted on the mounting block 52.

Wherein, a plurality of rolling bearings are arranged in the rotating sleeve 452; the rolling bearings are sleeved on the fixing sleeve 451.

The fixing sleeve 451 in this embodiment 1 is provided with a passage penetrating through both end faces thereof; the connecting shaft 44 is penetrated in the channel; the fixing sleeve 451 comprises a first connecting part and a second connecting part which are sequentially connected from top to bottom; the rotating sleeve 452 is sleeved on the second connecting portion.

The top of the rotating sleeve 452 in this embodiment 1 has an eave portion 11 extending outward from the periphery thereof; the eave extension part 11 is provided with a first mounting hole; the peripheral side of the middle part of the rotating sleeve 452 extends outwards to form an outer edge part 12; a second mounting hole coaxial with the first mounting hole is formed in the outer edge part 12; the brim and extension part 11 is positioned above the outer edge part 12; one end of the connecting block 10 far away from the mounting block passes through the second mounting hole and is inserted into the first mounting hole; wherein, the outer profile of the connecting block 10 is a bar shape.

The clamping mechanism 51 in this embodiment 1 includes a base 13, a first clamping block 14 disposed on the base 13, a second clamping block 15 matched with the first clamping block 14, and a driving device 16 for controlling the first clamping block 14 and the second clamping block 15 to close and clamp the aluminum profile; the first clamping block 14 and the second clamping block 15 form a first clamping group; the clamping mechanism further comprises a second clamp group with the same structure as the first clamp group; the first clamp group and the second clamp group are arranged side by side along the length direction of the base.

Wherein the clamping mechanism 51 further comprises a cantilever 17; the base 13 further comprises a suspension block 18; one end of the cantilever 17 is connected with the mounting block 52, and the other end is connected with the suspension block 18; the suspension block 18 is provided with a connecting column 19 penetrating through two end faces thereof; positioning blocks 20 are sleeved on two ends of the connecting column 19; a first mounting space and a second mounting space are formed between the two positioning blocks 20 and the hanging block 18 respectively; the first clamp group is located in the first installation space, and the first clamp and the second clamp are respectively located on two sides of the connecting column 19 and are hinged to the positioning block 20; the second clamp group is located in the second installation space.

Moreover, a first correcting block 21, a second correcting block 22 and a third correcting block 23 are arranged on the connecting column 19; the first correcting block 21 and the second correcting block 22 are respectively positioned at two ends of the connecting column 19, and the third correcting block 23 is positioned at the middle point of the connecting column 19; the first clamp group is positioned between the first correcting block 21 and the third correcting block 23; the second jaw set is located between the second orthotic block 21 and the third orthotic block 23.

The connecting column 19 extends to form a clamping position towards the first clamping block 14 and the second clamping block 15 corresponding to the positions of the first correcting block 21, the second correcting block 22 and the third correcting block 23, and a supporting block 16 extends from the clamping position; an adjusting hole is formed in the supporting block 16; the top of the supporting block 16 is provided with an opening communicated with the adjusting hole 27; the first correcting block 21, the second correcting block 22 and the third correcting block 23 are respectively inserted into the adjusting holes 27; the first correcting block 21, the second correcting block 22 and the third correcting block 23 respectively comprise a connecting part inserted in the adjusting hole 27 and a limiting part 26 positioned outside the adjusting hole 27; the connecting part is connected with the limiting part 26; two outward inclined planes are formed on one end face of the limiting part 26 away from the connecting part; the inclined plane is provided with an installation groove 24; and an anti-skid block 25 is arranged in the mounting groove 24.

Example two:

In order to ensure smooth rotation of the rotating sleeve, a plurality of rolling bearings are arranged in the rotating sleeve 452 in this embodiment 2; the rolling bearings are sleeved on the fixing sleeve 451.

Moreover, the fixing sleeve 451 in this embodiment 2 is provided with a passage penetrating through both end faces thereof; the connecting shaft 44 is penetrated in the channel; the fixing sleeve 451 comprises a first connecting part and a second connecting part which are sequentially connected from top to bottom; the rotating sleeve 452 is sleeved on the second connecting portion.

In this embodiment 2, the top of the rotating sleeve 452 extends outward to form an eave extension 11; the eave extension part 11 is provided with a first mounting hole; the peripheral side of the middle part of the rotating sleeve 452 extends outwards to form an outer edge part 12; a second mounting hole coaxial with the first mounting hole is formed in the outer edge part 12; the brim and extension part 11 is positioned above the outer edge part 12; one end of the connecting block 10 far away from the mounting block passes through the second mounting hole and is inserted into the first mounting hole; wherein, the outer profile of the connecting block 10 is a bar shape.

In order to clamp aluminum profiles of various sizes and ensure a good clamping effect, the clamping mechanism 51 in this embodiment 2 includes a base 13, a first clamping block 14 disposed on the base 13, a second clamping block 15 matched with the first clamping block 14, and a driving device 16 for controlling the first clamping block 14 and the second clamping block 15 to close and clamp the aluminum profiles; the first clamping block 14 and the second clamping block 15 form a first clamping group; the clamping mechanism further comprises a second clamp group with the same structure as the first clamp group; the first clamp group and the second clamp group are arranged side by side along the length direction of the base.

Moreover, in order to ensure the stability of clamping the aluminum profile and not to slip easily, the connecting column 19 in this embodiment 2 is provided with a first correcting block 21, a second correcting block 22 and a third correcting block 23; the first correcting block 21 and the second correcting block 22 are respectively positioned at two ends of the connecting column 19, and the third correcting block 23 is positioned at the middle point of the connecting column 19; the first clamp group is positioned between the first correcting block 21 and the third correcting block 23; the second jaw set is located between the second orthotic block 21 and the third orthotic block 23.

In addition, in order to adjust the protruding amount of the first correcting block 21, the second correcting block 22 and the third correcting block 23 so as to adapt to aluminum profiles with different sizes, in the embodiment 2, the support block 16 extends from the connecting column 19 to the clamping position formed by clamping the first clamping block 14 and the second clamping block 15 corresponding to the positions of the first correcting block 21, the second correcting block 22 and the third correcting block 23; an adjusting hole is formed in the supporting block 16; the top of the supporting block 16 is provided with an opening communicated with the adjusting hole 27; the first correcting block 21, the second correcting block 22 and the third correcting block 23 are respectively inserted into the adjusting holes 27; the first correcting block 21, the second correcting block 22 and the third correcting block 23 respectively comprise a connecting part inserted in the adjusting hole 27 and a limiting part 26 positioned outside the adjusting hole 27; the connecting part is connected with the limiting part 26; two outward inclined planes are formed on one end face of the limiting part 26 away from the connecting part; the inclined plane is provided with an installation groove 24; and an anti-skid block 25 is arranged in the mounting groove 24.

The clamping device in the embodiment 2 is applied to the pretreatment of spraying aluminum profiles in the aluminum profile production line. Firstly, the driving block 6 controls the rotating shaft 41 to rotate, then the rotating shaft 41 controls the eccentric wheel 42 to rotate, the eccentric wheel 42 rotates to control the connecting arm 43 to do eccentric motion, then the connecting arm 43 drives the connecting shaft 43 to move up and down, then the clamping mechanism 51 is controlled to move up and down, and the first clamp group and the second clamp group clamp the column aluminum profiles, so that the aluminum profiles are kept in vertical arrangement, namely the length direction of the aluminum profiles is parallel to the up-down moving path of the connecting shaft 44; further, the slide block 3 is driven to move along the guide rail 2 by an external driving motor; further, the screw thread on the rotating sleeve 452 is meshed with the rack block 7 to be connected, the rotating sleeve 452 drives the connecting block 10 to rotate, then, the connecting block 10 drives the mounting block 52 to rotate, and meanwhile, the mounting block drives the connecting shaft 44 to rotate, so that the clamping mechanism 51 is rotated, and the aluminum profile is further driven to rotate. The aluminum profile is cleaned more cleanly through the lifting motion and the rotating motion of the clamping mechanism 51.

In another embodiment, the clamping device can be applied to the spraying process, and the surface of the aluminum profile is uniformly sprayed and the spraying efficiency is high through the lifting motion and the rotating motion of the clamping mechanism 51.

Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.

Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.

It is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be understood as merely illustrative of the present invention and not as limiting the scope of the invention. After reading the description of the present invention, the skilled person can make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope of the present invention defined by the claims.

Claims

1. A clamping device for a spraying production line is characterized by comprising a rack; the rack is provided with a guide rail along the length direction; the guide rail is connected with a sliding block in a sliding manner; the sliding block is provided with a clamping assembly; the clamping assembly comprises a transmission block, a clamping block and a driving block for driving the clamping block to move up and down; the transmission block comprises a rotating shaft, an eccentric wheel, a connecting arm, a connecting shaft and a rotating sleeve set, wherein the connecting shaft and the rotating sleeve set are vertically arranged; one end of the rotating shaft is connected with the output end of the driving block, and the other end of the rotating shaft is connected with the eccentric wheel; one end of the connecting arm is hinged with the output end of the eccentric wheel, and the other end of the connecting arm is hinged with the connecting shaft; the connecting shaft penetrates through the rotating sleeve set; the rotating sleeve set comprises a fixed sleeve sleeved on the connecting shaft and a rotating sleeve sleeved on the fixed sleeve and capable of rotating relative to the fixed sleeve; the outer wall of the rotating sleeve is provided with threads around the periphery of the rotating sleeve; the rotating sleeve is provided with a connecting block; one end of the connecting block, which is far away from the rotating sleeve, extends to the side of one end of the connecting shaft, which is far away from the connecting arm; a rack block is arranged on the rack along the guide of the guide rail; the rack block is in meshed connection with the thread of the rotating sleeve; the sliding block is also provided with a fixed rod; one end of the fixed rod, which is far away from the sliding block, is connected with the fixed sleeve; one end of the connecting shaft, which is far away from the connecting arm, extends outwards in the circumferential direction to form a butting block; the clamping block comprises a clamping mechanism for clamping the aluminum profile and an installation block abutted against the abutting block; one end of the mounting block is connected with the connecting shaft in a sliding manner and rotates synchronously, and the other end of the mounting block is connected with the connecting block in a sliding manner; the clamping mechanism is arranged on the mounting block.

2. The clamping device for the spraying production line according to claim 1, wherein a plurality of rolling bearings are arranged in the rotating sleeve; the rolling bearings are sleeved on the fixing sleeve.

3. The clamping device for the spraying production line as claimed in claim 1, wherein the fixing sleeve is provided with a passage penetrating through two end faces thereof; the connecting shaft is connected in the channel in a penetrating manner; the fixing sleeve comprises a first connecting part and a second connecting part which are sequentially connected from top to bottom; the rotating sleeve is sleeved on the second connecting part.

4. The clamping device for the spraying production line according to claim 1, wherein the periphery of the top of the rotating sleeve extends outwards to form an eave part; the eave exhibition part is provided with a first mounting hole; the peripheral side of the middle part of the rotating sleeve extends outwards to form an outer edge part; a second mounting hole which is coaxial with the first mounting hole is formed in the outer edge part; the eave extension part is positioned above the outer edge part; one end of the connecting block, which is far away from the mounting block, penetrates through the second mounting hole and is inserted into the first mounting hole.

5. The clamping device for the spraying production line according to claim 4, wherein the outer contour of the connecting block is a strip shape.

6. The clamping device for the spraying production line according to claim 1, wherein the clamping mechanism comprises a base, a first clamping block arranged on the base, a second clamping block matched with the first clamping block, and a driving device used for controlling the first clamping block and the second clamping block to close and clamp the aluminum profile.

7. The clamping device for the spraying production line according to claim 6, wherein the first clamp block and the second clamp block form a first clamp group; the clamping mechanism further comprises a second clamp group with the same structure as the first clamp group; the first clamp group and the second clamp group are arranged side by side along the length direction of the base.

8. The clamping device for the painting production line according to claim 7, wherein the clamping mechanism further comprises a cantilever; the base further comprises a suspension block; one end of the cantilever is connected with the mounting block, and the other end of the cantilever is connected with the suspension block; the suspension block is provided with a connecting column penetrating through two end faces of the suspension block; positioning blocks are sleeved on two ends of the connecting column; a first mounting space and a second mounting space are formed between the two positioning blocks and the hanging block respectively; the first clamp group is positioned in the first mounting space, and the first clamp and the second clamp are respectively positioned on two sides of the connecting column and are hinged with the positioning block; the second clamp group is located in the second installation space.

9. The clamping device for the spraying production line according to claim 8, wherein a first straightening block, a second straightening block and a third straightening block are arranged on the connecting column; the first correcting block and the second correcting block are respectively positioned at two ends of the connecting column, and the third correcting block is positioned at the middle point of the connecting column; the first jaw set is positioned between the first orthotic block and a third orthotic block; the second jaw set is positioned between the second orthotic block and a third orthotic block.

10. The clamping device for the spraying production line according to claim 9, wherein a supporting block extends from the connecting column corresponding to the first correcting block, the second correcting block and the third correcting block to a clamping position formed by clamping the first clamping block and the second clamping block; an adjusting hole is formed in the supporting block; the top of the supporting block is provided with an opening communicated with the adjusting hole; the first correcting block, the second correcting block and the third correcting block are respectively inserted into the adjusting holes; the first correcting block, the second correcting block and the third correcting block respectively comprise a connecting part inserted in the adjusting hole and a limiting part positioned outside the adjusting hole; the connecting part is connected with the limiting part; two outward inclined planes are formed on one end face of the limiting part far away from the connecting part; the inclined plane is provided with an installation groove; and anti-skidding blocks are arranged in the mounting grooves.