A fixture for polishing the outer liner of a kettle

Abstract

The present invention provides a clamp for polishing the outer liner of a kettle, the clamp comprising: a support seat, a kettle body clamping mechanism and a kettle mouth clamping mechanism; wherein the kettle body clamping mechanism and the kettle mouth clamping mechanism are both arranged on the support seat, the kettle body clamping mechanism is used to press against the inner wall of the kettle body of the outer liner of the kettle to support the kettle body internally to achieve clamping of the kettle body; the kettle mouth clamping mechanism is used to press against the inner wall of the kettle mouth of the outer liner of the kettle to support the kettle mouth internally to achieve clamping of the kettle mouth. The present invention presses against the inner wall of the kettle body of the outer liner of the kettle by the kettle body clamping mechanism to support the kettle body internally to achieve clamping of the kettle body, and presses against the inner wall of the kettle mouth of the outer liner of the kettle by the kettle mouth clamping mechanism to support the kettle mouth internally to achieve clamping of the kettle mouth, that is, the clamping of the kettle outer liner is achieved by the internal support clamping of the kettle body and the kettle mouth, and the stability of the clamping of the kettle outer liner is also ensured.

Description

Technical Field

[0001] The invention relates to the technical field of polishing, and in particular to a clamp for polishing the outer liner of a kettle. Background Art

[0002] The outer shell of a kettle is a key component of a high-end kettle. The processing technology of the product will play an important role in the appearance quality of the product. Therefore, the polishing process is one of the essential production processes.

[0003] In modern enterprises, the work of grinding the outer liner of kettles is generally done manually, using a grinder with sanding belts and polishing wheels to grind the back support frame. The effect of manual grinding depends on the worker's craftsmanship and experience, so the deburring quality is unstable and the effect is poorly uniform. At the same time, the labor intensity is high, resulting in low production efficiency. With the continuous development of the economy, labor costs are gradually increasing, continuously increasing the cost of enterprises. Therefore, the introduction of robots is one of the ways to solve this series of problems.

[0004] Since the outer shell of the kettle is relatively high, single-sided external clamping can easily cause the other side to deform during grinding, while double-sided external clamping can lead to a lot of interference during robot grinding, which is very unfavorable for robot grinding. Summary of the invention

[0005] In view of this, the present invention proposes a clamp for polishing the outer liner of a kettle, aiming to solve the problem that the outer liner of the existing kettle is easily deformed by single-sided external clamping and is not conducive to polishing by double-sided external clamping.

[0006] The present invention proposes a clamp for polishing the outer vessel of a kettle, the clamp comprising: a support seat, a kettle body clamping mechanism and a kettle mouth clamping mechanism; wherein the kettle body clamping mechanism and the kettle mouth clamping mechanism are both arranged on the support seat, the kettle body clamping mechanism is used to press against the inner wall of the kettle body of the outer vessel of the kettle to support the kettle body internally so as to clamp the kettle body; the kettle mouth clamping mechanism is used to press against the inner wall of the kettle mouth of the outer vessel of the kettle to support the kettle mouth internally so as to clamp the kettle mouth.

[0007] Furthermore, in the above-mentioned fixture for polishing the outer liner of a kettle, the kettle mouth clamping mechanism comprises: a telescopic driving member, a lever-type connecting rod assembly, a tensioning rod assembly and an expansion sleeve assembly; wherein, the expansion sleeve assembly is located on one side of the telescopic driving member, and the tensioning rod assembly is inserted into the expansion sleeve assembly in a manner that it can move relative to the expansion sleeve assembly; the power input end of the lever-type connecting rod assembly is connected to the power output end of the telescopic driving member, and the power output end of the lever-type connecting rod assembly is connected to the tensioning rod assembly, and is used to drive the lever-type connecting rod assembly to swing under the drive of the telescopic driving member, so that the lever-type connecting rod assembly drives the tensioning rod assembly to move, and then the tensioning rod assembly presses the expansion sleeve assembly to elastically deform, so as to press against the inner wall of the kettle mouth to realize internal support of the kettle mouth.

[0008] Furthermore, in the above-mentioned fixture for polishing the outer liner of a kettle, the lever-type connecting rod assembly comprises: a connecting rod body and a support; wherein, one end of the connecting rod body is connected to the power output end of the telescopic drive member in a rotatable and slidable manner, and the other end is connected to the tensioning rod assembly in a rotatable and slidable manner, and the middle position of the connecting rod body is rotatably connected to the support, so that the connecting rod body swings with the connection point on the support as a fulcrum.

[0009] Furthermore, in the above-mentioned clamp for polishing the outer liner of a kettle, the tensioning rod assembly comprises: a first tensioning rod and a second tensioning rod; wherein, one end of the first tensioning rod is connected to the power output end of the lever-type connecting rod assembly, and the other end is detachably connected to the connecting end of the second tensioning rod, and the pressing end of the second tensioning rod is provided with an inverted conical surface structure, and the inverted conical surface structure is used to gradually press the expansion sleeve assembly when moving close to the expansion sleeve assembly, so that the expansion sleeve assembly gradually expands and deforms.

[0010] Furthermore, in the above-mentioned fixture for polishing the outer liner of a kettle, the expansion sleeve assembly comprises: a positioning sleeve and an expansion sleeve body; wherein one end of the expansion sleeve body is detachably connected to the positioning sleeve, and the other end serves as an expansion clamping end for elastically deforming under the top pressure of the tension rod assembly.

[0011] Furthermore, in the above-mentioned kettle outer vessel polishing fixture, the power output end of the telescopic driving member is provided with a detachable clamping block, and the power input end of the lever-type connecting rod assembly is connected to the clamping block in a slidable and rotatable manner.

[0012] Furthermore, in the above-mentioned fixture for polishing the outer tank of a kettle, the kettle body clamping mechanism comprises: a driving member and a clamping claw; wherein the driving member has at least three power output ends, the connecting claws are connected to the power output ends of the driving member in a one-to-one correspondence, and the driving member is used to drive each connecting claw to perform reciprocating linear motion, so that each connecting claw can approach or move away from each other, thereby achieving internal support of the kettle body.

[0013] Furthermore, in the above-mentioned kettle outer vessel polishing fixture, the driving member is a multi-claw cylinder, and the multi-claw cylinder has at least three connecting claws.

[0014] Furthermore, in the above-mentioned fixture for polishing the outer liner of the kettle, the support seat comprises: a support seat body and a fixing platform; wherein, the two ends of the support seat body are respectively used to place the kettle body clamping mechanism and the kettle mouth clamping mechanism; the fixing platform is arranged on one end of the support seat body, and a hollow cavity is formed between the fixing platform and the support seat body for placing the kettle body clamping mechanism, and the fixing platform is also used to support the outer liner of the kettle.

[0015] Furthermore, in the above-mentioned fixture for polishing the outer liner of a kettle, the expansion sleeve assembly of the kettle mouth clamping mechanism is located outside the hollow cavity, the lever-type connecting rod assembly of the kettle mouth clamping mechanism is rotatably and slidably penetrated through the side wall of the fixed platform, and the tensioning rod assembly of the kettle mouth clamping mechanism is slidably penetrated through the top wall of the fixed platform.

[0016] The jig for polishing the outer liner of a kettle provided by the present invention presses against the inner wall of the body of the outer liner of the kettle through the kettle body clamping mechanism to support the kettle body internally to achieve clamping of the kettle body, and presses against the inner wall of the mouth of the outer liner of the kettle through the kettle mouth clamping mechanism to support the mouth internally to achieve clamping of the kettle mouth, that is, the outer liner of the kettle is clamped by the internal support of the kettle body and the mouth, and the stability of the clamping of the outer liner of the kettle is ensured. The jig for polishing the outer liner of the kettle achieves clamping by internal support of the kettle body and the mouth. Compared with single-sided clamping, the internal support of the kettle body and the mouth can avoid deformation of the outer liner of the kettle, solving the problem that the existing outer liner of the kettle is easy to deform by single-sided external clamping. At the same time, the internal support does not affect the polishing or other construction of the outer wall of the outer liner of the kettle, and also solves the problem that double-sided external clamping is not conducive to polishing. In addition, the jig can be placed at one end of the outer liner of the kettle to achieve clamping at two places, especially at both ends, so that robot polishing is more flexible and efficient.

[0017] Furthermore, the pot mouth clamping mechanism utilizes the connecting rod principle to externalize the telescopic driving member, that is, the power, so as to make the structure compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of the structure of a jig for polishing the outer liner of a kettle provided in an embodiment of the present invention;

[0020] Figure 2 A cross-sectional view of a fixture for polishing the outer liner of a kettle provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] See also Figure 1 to Figure 2 , which shows the preferred structure of the jig for polishing the outer liner of a kettle provided by an embodiment of the present invention. As shown in the figure, the jig comprises: a support seat 1, a kettle body clamping mechanism 2 and a kettle mouth clamping mechanism 3; wherein,

[0023] The kettle body clamping mechanism 2 and the kettle mouth clamping mechanism 3 are both arranged on the support seat 1. The kettle body clamping mechanism 2 is used to press on the inner wall of the kettle body of the outer tank 4 of the kettle to support the kettle body inwardly so as to clamp the kettle body; the kettle mouth clamping mechanism 3 is arranged on the support seat 1, and is used to press on the inner wall of the kettle mouth of the outer tank 4 of the kettle to support the kettle mouth inwardly so as to clamp the kettle mouth.

[0024] During specific implementation, the clamping execution parts of the kettle body clamping mechanism 2 and the kettle mouth clamping mechanism 3 can be coaxially arranged on the support seat 1, so that the kettle outer liner 4 is coaxially arranged on the top, and then the clamping execution part of the kettle body clamping mechanism 2 moves radially along the kettle outer liner 4 until it presses against the inner wall of the kettle body of the kettle outer liner 4, thereby supporting the kettle body internally to achieve clamping of the kettle body, and the clamping execution part of the kettle mouth clamping mechanism 3 moves radially along the kettle outer liner 4 at the mouth of the kettle outer liner 4 until it presses against the inner wall of the mouth of the kettle outer liner 4, thereby supporting the kettle mouth internally to achieve clamping of the kettle mouth, and then the inner support clamping of the kettle body and the kettle mouth ensures the clamping stability of the kettle outer liner 4. In this embodiment, the end of the kettle body of the kettle outer liner 4 facing away from the kettle mouth (such as Figure 1The top end shown in the figure is an open end, and the actuators of the kettle body clamping mechanism 2 and the kettle mouth clamping mechanism 3 can extend from the bottom end into the interior of the kettle outer liner 4 and can abut against the inner wall of the kettle outer liner 4 to achieve clamping.

[0025] In this embodiment, a flange 5 may be provided on the support base 1 for connecting the manipulator of the robot so that the clamp can be used as the end effector of the robot for clamping, which can make the use of the clamp more flexible and efficient. Specifically, the flange 5 is arranged on the lower side of the support base 1, facing away from the kettle body clamping mechanism 2 and the kettle mouth clamping mechanism 3, so as to avoid interference with the support of the kettle body clamping mechanism 2 and the kettle mouth clamping mechanism 3, and the clamping of the kettle outer liner 4.

[0026] Continue to see Figure 1 and Figure 2 The support base 1 includes: a support base body 11 and a fixing platform 12; wherein the two ends of the support base body 11 (such as Figure 1 The left and right ends shown in the figure are used to place the pot body clamping mechanism 2 and the pot mouth clamping mechanism 3; the fixing platform 12 is arranged at one end of the support seat body 11 (such as Figure 1 The left end is shown in the figure), and a hollow cavity is formed between the fixing platform 12 and the supporting seat body 11 for placing the kettle body clamping mechanism 2, and the fixing platform 12 is also used to support the outer liner 6 of the kettle.

[0027] During specific implementation, the left end of the support seat body 11 can be a rectangular structure, and the right end can be a circular structure, so as to support the kettle body clamping mechanism 2 and the kettle mouth clamping mechanism 3 respectively, so that the kettle body clamping mechanism 2 and the kettle mouth clamping mechanism 3 are placed on the rectangular structure and the circular structure respectively. The fixing platform 12 can be a cylindrical shell structure with one end open, which is compatible with the circular structure. The fixing platform 12 is installed on the circular structure to form an internal hollow shell structure. In this embodiment, the kettle mouth clamping mechanism 3 is partially installed in the hollow cavity of the shell structure, and part of the kettle body clamping mechanism 2 can also be partially located in the hollow cavity, so that the compactness of the structure of the clamp can be ensured under the premise of clamping. Figure 1 and Figure 2 As shown, the fixing platform 12 can also support the outer liner 6 of the kettle. In this embodiment, the clamping execution parts of the kettle body clamping mechanism 2 and the kettle mouth clamping mechanism 3 are also coaxially arranged above the fixing platform 12, and the outer liner 6 of the kettle can be coaxially installed on the fixing platform 12, so that the clamping execution parts of the kettle body clamping mechanism 2 and the kettle mouth clamping mechanism 3 move along the radial direction of the fixing platform 12 to clamp the outer liner 6 of the kettle. Among them, the flange 5 and the support seat body 11 can be an integral structure, or they can be connected by other means such as welding or screw connection, which is not limited in this embodiment.

[0028] Continue to see Figure 1 and Figure 2The kettle body clamping mechanism 2 includes: a driving member 21 and a clamping jaw 22; wherein the driving member 21 has at least three power output ends, and the clamping jaws 22 are connected to the power output ends of the driving member 21 in a one-to-one correspondence. The driving member 21 is used to drive each clamping jaw 22 to perform reciprocating linear motion, so that each clamping jaw 22 can approach or move away from each other, thereby achieving internal support for the kettle body.

[0029] In a specific implementation, the driving member 21 can be a multi-claw cylinder with at least three connecting claws, each connecting claw serving as a power output end of the driving member 21, and used to connect the clamping claw 22 to drive the clamping claw 22 to move; of course, the structure of the driving member 21 can also be other structures, for example, a multi-claw clamp can be referred to, and the clamping claws 22 can be moved closer or farther away from each other through multiple telescopic parts. In this embodiment, the multiple clamping claws 22 are arranged in a circle, and as the clamping execution part of the kettle body clamping mechanism 2, they can be coaxially arranged with the fixed platform 12. Figure 2 As shown, the driving member 21 may be located in the hollow cavity and installed on the circular structure of the support seat body 11, and the top wall of the fixed platform 12 may be provided with a plurality of through grooves corresponding to the clamping claws 22, so that the clamping claws 22 or the connecting claws are inserted into the fixed platform 12 and slide along the through grooves, thereby preventing the fixed platform 12 from interfering with the movement of the clamping claws 22 and the connecting claws. In this embodiment, the driving member 21 can be fixed to the circular structure of the support seat body 11 by means of connecting members such as screws, and the clamping claws 22 can also be fixed to the power output end of the driving member 21, such as the connecting claws of a multi-claw cylinder, by means of connecting members such as screws. Among them, the connecting claws of the driving member 21 and the clamping claws 22 can both be four, that is, the driving member 21 can be a four-claw cylinder; as Figure 1 As shown, the clamping claw 22 can clamp the end of the kettle body away from the kettle mouth, that is, clamp the lower end of the kettle body.

[0030] Continue to see Figure 1 and Figure 2 The pot mouth clamping mechanism 3 includes: a telescopic driving member 31, a lever-type connecting rod assembly 32, a tension rod assembly 33 and an expansion sleeve assembly 34; wherein the expansion sleeve assembly 34 is located on one side of the telescopic driving member 31 (such as Figure 2 As shown in the right side, the tensioning rod assembly 33 is inserted into the expansion sleeve assembly 34 in a manner that it can move relative to the expansion sleeve assembly 34; the power input end of the lever-type connecting rod assembly 32 is connected to the power output end of the telescopic driving member 31, and the power output end of the lever-type connecting rod assembly 32 is connected to the tensioning rod assembly 33, which is used to drive the lever-type connecting rod assembly 32 to swing under the drive of the telescopic driving member 31, so that the lever-type connecting rod assembly 32 drives the tensioning rod assembly 33 to move, and then the tensioning rod assembly 33 presses the expansion sleeve assembly 34 to elastically deform, so as to press against the inner wall of the pot mouth to realize the internal support of the pot mouth.

[0031] In specific implementation, the telescopic drive member 31 can be installed on the rectangular structure of the support seat body 11. The expansion sleeve assembly 34, as the actuator of the kettle mouth clamping mechanism 3, can be coaxially arranged above the fixed platform 12. The expansion sleeve assembly 34 and the telescopic drive member 31 are arranged parallel to the left and right sides above the support seat body 11. In particular, the expansion sleeve assembly 34 is coaxially arranged with a plurality of clamping claws 22 arranged in a circle to ensure the clamping of the outer liner 6 of the kettle; in this embodiment, the expansion sleeve assembly 34 is located outside the middle cavity. The tension rod assembly 33 is arranged along the axial direction of the expansion sleeve assembly 34 (such as Figure 2 The expansion sleeve assembly 34 and the top wall of the fixing platform 12 can be slidably penetrated by the expansion sleeve assembly 34 and the top wall of the fixing platform 12, and the tension rod assembly 33 can move relative to the expansion sleeve assembly 34. The expansion sleeve assembly 34 can guide the movement of the tension rod assembly 33, so that the tension rod assembly 33 can move along the axial direction of the kettle outer liner 6, and the tension rod assembly 33 can be clamped while avoiding interference between the tension rod assembly 33 and the kettle outer liner 6. The power output end of the telescopic drive member 31 and the power input end of the tension rod assembly 33 (such as Figure 2 The lever-type connecting rod assembly 32 is connected between the two ends of the telescopic drive member 31 and the power input end of the tension rod assembly 33, and the two ends are respectively connected to the power output end of the telescopic drive member 31 and the power input end of the tension rod assembly 33, and the telescopic drive member 31 is driven to swing under the telescopic action, and then the tension rod assembly 33 can be driven to move up and down along the axial direction of the expansion sleeve assembly 34, so that the tension rod assembly 33 presses the expansion sleeve assembly 34 to elastically deform, such as elastically collide, so that the expansion sleeve assembly 34 presses against the inner wall of the pot mouth to achieve internal support of the pot mouth. Among them, the telescopic drive member 31 can be a cylinder, and of course it can also be other telescopic structures, such as an oil cylinder.

[0032] Continue to see Figure 1 to Figure 2 The power output end of the telescopic drive member 31 is provided with a detachable tightening block 35, and the power input end of the lever-type connecting rod assembly 32 is connected to the tightening block 35 in a slidable and rotatable manner. Specifically, the tightening block 35 is connected to the power output end of the telescopic drive member 31, such as the piston rod of the cylinder, through a thread. For example, the bottom of the tightening block 35 is provided with an external threaded portion, the piston rod of the cylinder is provided with a connecting hole, and the inner wall of the connecting hole is provided with an internal thread to form an internal threaded portion, which is adapted to the external threaded portion, and a locking nut 36 is provided on the external threaded portion to further prevent the tightening block 35 and the power output end of the telescopic drive member 31 from loosening.

[0033] Continue to see Figure 2 The lever type connecting rod assembly 32 includes: a connecting rod body 321 and a support 322; wherein one end of the connecting rod body 322 (such as Figure 2The left end as shown is connected to the power output end of the telescopic drive member 31 in a rotatable and slidable manner, and the other end is connected to the tension rod assembly 33 in a rotatable and slidable manner. The middle position of the connecting rod body 321 is rotatably connected to the support 322 so that the connecting rod body 321 swings with the connection point on the support 322 as a fulcrum.

[0034] In specific implementation, the support 322 can be set in the hollow cavity and fixedly installed on the inner top wall of the fixed platform 12 by screws, so as to serve as a fixed support hinge fulcrum for the connecting rod body 321, so as to support the connecting rod body 321. The connecting rod body 321 is penetrated through the side wall of the fixed platform 12, and the connecting rod body 321 is located in the middle position of the fixed platform 12 and is hinged to the support 322 through a hinge 323, so that the connecting rod body 321 can rotate relative to the support 322. The left end of the connecting rod body 321 located outside the fixed platform 12 serves as the power input end, and it can be hinged to the top block 35 through the first rotating pin 37; the first rotating pin 37 can be fixedly installed on the top block 35, and the left end of the connecting rod body 321 can be provided with a waist-shaped hole, and the first rotating pin 37 is penetrated through the waist-shaped hole at the left end of the connecting rod body 321 in a rotatable and slidable manner. The connecting rod body 321 is located at the right end of the fixed platform 12 as the power output end, and can be hinged with the lever-type connecting rod assembly 33 through the second rotating pin 38; the second rotating pin 38 can be fixedly installed on the lever-type connecting rod assembly 33, and the right end of the connecting rod body 321 can be provided with a waist-shaped hole, and the second rotating pin 38 is rotatably and slidably penetrated through the waist-shaped hole at the right end of the connecting rod body 321. Among them, the middle position of the connecting rod body 321 in the fixed platform 12 refers to the position between the two ends.

[0035] Continue to see Figure 2 The tension rod assembly 33 includes: a first tension rod 331 and a second tension rod 332; wherein one end of the first tension rod 331 (such as Figure 2 The bottom end shown in FIG. 1 is connected to the power output end of the lever type connecting rod assembly 32, and the other end (as shown in FIG. Figure 2 The top end shown in FIG. 1 and the connecting end of the second tension rod 332 (as shown in FIG. Figure 2 The bottom end shown in FIG. 1 is detachably connected to the top pressing end of the second tension rod 332 (as shown in FIG. Figure 2 The top end shown in the figure is provided with an inverted cone structure 3321, and the inverted cone structure 3321 is used to gradually press the expansion sleeve assembly 34 when moving close to the expansion sleeve assembly 34, so that the expansion sleeve assembly 34 gradually expands and deforms, thereby achieving the clamping of the pot mouth.

[0036] In specific implementation, the bottom end of the first tension rod 331 serves as the power input end, and the second rotating pin 38 is arranged on the bottom end of the first tension rod 331 to move up and down when the connecting rod body 321 swings. The second tension rod 332 is coaxially arranged at the upper end of the first tension rod 331 to move up and down synchronously with the first tension rod 331, and when the first tension rod 331 and the second tension rod 332 move downward synchronously, the outer diameter of the inverted cone structure 3321 at the pot mouth gradually increases, and the expansion sleeve assembly 34 can be gradually expanded and deformed. In this embodiment, the first tension rod 331 and the second tension rod 332 can be connected by threads to facilitate disassembly and assembly and production.

[0037] Continue to see Figure 2 The expansion sleeve assembly 34 includes: a positioning sleeve 341 and an expansion sleeve body 342; wherein one end of the expansion sleeve body 342 (such as Figure 2 The bottom end shown in FIG. 1 is detachably connected to the positioning sleeve 341, and the other end (as shown in FIG. Figure 2 The top end shown in the figure serves as an expansion clamping end, which is used to elastically deform under the top pressure of the tension rod assembly so as to achieve clamping of the pot mouth after expansion.

[0038] In specific implementation, the bottom end of the positioning sleeve 341 can be fixed to the fixed sleeve 12 by means of screws or other connectors, and the bottom end of the expansion sleeve body 342 is threadedly connected to the top end of the positioning sleeve 341, which can be easily disassembled and manufactured. The inner wall of the top end of the expansion sleeve body 342 can be provided with an inner cone guide surface, which is compatible with the inverted cone structure 3321. When the inverted cone structure 3321 moves downward, the inner cone guide surface and the inverted cone structure 3321 cooperate to press the top end of the expansion sleeve body 342, so that the top end of the expansion sleeve body 342 extends outward and deforms. When the expansion sleeve body 342 is in a free state, the top end of the expansion sleeve body 342 is in gap with the inner wall of the pot mouth. When the inverted cone structure 3321 moves downward, the inner cone guide surface and the inverted cone structure 3321 cooperate to press the top end of the expansion sleeve body 342, so that the top end of the expansion sleeve body 342 extends outward and deforms, so as to press against the inner wall of the pot mouth, thereby clamping the pot mouth. In this embodiment, the top of the expansion sleeve body 342 may be provided with a plurality of openings along its axial direction, so that the top of the expansion sleeve body 342 forms a plurality of petals, thereby facilitating the outward extension of each petal. Of course, the expansion sleeve body 342 may also be made of rubber material, so that it can extend outward under the extrusion of the inverted conical structure 3321, and clamping can also be achieved.

[0039] The working principle of the jig for polishing the outer liner of a kettle: the entire jig for polishing the outer liner of a kettle is installed on the end of the robot through the support seat body 11; the jig for polishing the outer liner of a kettle is mainly powered by a four-claw cylinder, which clamps the body of the kettle outer liner 6 through the clamping claws 22, and is powered by the telescopic drive member 31. The first tensioning rod 331 and the second tensioning rod 332 are driven to move up and down through the tightening block 35 and the connecting rod body 321, and the inverted cone structure 3321 of the second tensioning rod 332 moves downward, and the expansion sleeve body 342 is supported externally, so that the expansion sleeve body 342 extends and deforms outward, thereby clamping the mouth of the kettle.

[0040] In summary, the jig for polishing the outer liner of a kettle provided in this embodiment presses against the inner wall of the body of the outer liner 4 of the kettle through the body clamping mechanism 2 to support the kettle body internally to achieve clamping of the kettle body, and presses against the inner wall of the mouth of the outer liner 4 of the kettle through the mouth clamping mechanism 3 to support the mouth internally to achieve clamping of the mouth, that is, the outer liner 4 of the kettle is clamped by the internal support of the kettle body and the mouth, and the clamping stability of the outer liner 4 of the kettle is also ensured. The jig for polishing the outer liner of the kettle is clamped by internal support of the kettle body and the mouth. Compared with single-sided clamping, the internal support of the kettle body and the mouth can avoid deformation of the outer liner 6 of the kettle, solving the problem that the existing outer liner of the kettle is easy to deform due to single-sided external clamping. At the same time, the internal support does not affect the polishing or other construction of the outer wall of the outer liner 6 of the kettle, and also solves the problem that double-sided external clamping is not conducive to polishing. In addition, the clamp can be placed at one end of the outer liner 6 of the kettle to achieve clamping at two places, especially at both ends, so that the robot grinding is more flexible and efficient.

[0041] Furthermore, the pot mouth clamping mechanism 3 utilizes the connecting rod principle to externalize the telescopic driving member, that is, the power, so as to make the structure compact.

[0042] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0043] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A jig for polishing the outer liner of a kettle, characterized in that: include: Support seat, kettle body clamping mechanism and kettle mouth clamping mechanism; wherein, The kettle body clamping mechanism and the kettle mouth clamping mechanism are both arranged on the support seat, the kettle body clamping mechanism is used to press against the inner wall of the kettle body of the outer chamber of the kettle to support the kettle body internally, so as to achieve the clamping of the kettle body; the kettle mouth clamping mechanism is used to press against the inner wall of the kettle mouth of the outer chamber of the kettle to support the kettle mouth internally, so as to achieve the clamping of the kettle mouth; The support base comprises: a support base body and a fixing platform; wherein, The two ends of the support seat body are respectively used to place the pot body clamping mechanism and the pot mouth clamping mechanism; The fixing platform is arranged on one end of the supporting seat body, and a hollow cavity is formed between the fixing platform and the supporting seat body for placing the kettle body clamping mechanism, and the fixing platform is also used to support the outer liner of the kettle; The kettle body clamping mechanism comprises: a driving member and a clamping claw; wherein, The driving member is a multi-claw cylinder, and the multi-claw cylinder has at least three connecting claws, each connecting claw serves as a power output end of the driving member, and the clamping claws are connected to the power output end of the driving member in a one-to-one correspondence. The driving member is used to drive each clamping claw to perform reciprocating linear motion, so that each clamping claw can move closer to or farther from each other, so as to achieve internal support of the kettle body; The plurality of clamping claws are arranged in a circle, serving as the clamping execution part of the kettle body clamping mechanism, and are coaxially arranged with the fixed platform; The driving member is located in the hollow cavity and is mounted on the circular structure of the support seat body. The top wall of the fixed platform can be provided with a plurality of through slots corresponding to the clamping claws one by one, so that the clamping claws or the connecting claws are inserted into the fixed platform and slide along the through slots. The driving member is fixed on the circular structure of the support seat body. The pot mouth clamping mechanism comprises: a telescopic driving member, a lever-type connecting rod assembly, a tension rod assembly and an expansion sleeve assembly; wherein, The expansion sleeve assembly is located at one side of the telescopic driving member, and the tension rod assembly is inserted into the expansion sleeve assembly in a manner that it can move relative to the expansion sleeve assembly; The power input end of the lever-type connecting rod assembly is connected to the power output end of the telescopic driving member, and the power output end of the lever-type connecting rod assembly is connected to the tension rod assembly, and is used to drive the lever-type connecting rod assembly to swing under the drive of the telescopic driving member, so that the lever-type connecting rod assembly drives the tension rod assembly to move, and then the tension rod assembly presses the expansion sleeve assembly to elastically deform, so as to press against the inner wall of the pot mouth to realize the inner support of the pot mouth; The expansion sleeve assembly of the pot mouth clamping mechanism is located outside the hollow cavity, the lever-type connecting rod assembly of the pot mouth clamping mechanism is rotatably and slidably penetrated through the side wall of the fixed platform, and the tension rod assembly of the pot mouth clamping mechanism is slidably penetrated through the top wall of the fixed platform; The power output end of the telescopic drive member is provided with a detachable tightening block, and the power input end of the lever-type connecting rod assembly is connected to the tightening block in a slidable and rotatable manner; The lever-type connecting rod assembly comprises: a connecting rod body and a support; wherein, One end of the connecting rod body is connected to the power output end of the telescopic drive member in a rotatable and slidable manner, and the other end is connected to the tension rod assembly in a rotatable and slidable manner. The middle position of the connecting rod body is connected to the support in a rotatable manner, so that the connecting rod body swings with the connection point connected to the support as a fulcrum; The support is arranged in the hollow cavity and is fixedly installed on the inner top wall of the fixed platform by screws to serve as a hinge fulcrum for fixing and supporting the connecting rod body to realize support for the connecting rod body; the connecting rod body is penetrated through the side wall of the fixed platform, and the connecting rod body is located at the middle position in the fixed platform and is hinged to the support through a hinge so that the connecting rod body can rotate relative to the support; the end of the connecting rod body located outside the fixed platform serves as a power input end, and it can be hinged to the tightening block through a first rotating pin; the first rotating pin is fixedly installed on the tightening block, and the left end of the connecting rod body is provided with a waist-shaped hole, and the first rotating pin is penetrated through the waist-shaped hole at the left end of the connecting rod body in a rotatable and slidable manner; the right end of the connecting rod body located in the fixed platform serves as a power output end, and it is hinged to the lever-type connecting rod assembly through a second rotating pin; the second rotating pin is fixedly installed on the lever-type connecting rod assembly, and the right end of the connecting rod body is provided with a waist-shaped hole, and the second rotating pin is penetrated through the waist-shaped hole at the right end of the connecting rod body in a rotatable and slidable manner; The expansion sleeve assembly comprises: a positioning sleeve and an expansion sleeve body; wherein, One end of the expansion sleeve body is detachably connected to the positioning sleeve, and the other end serves as an expansion clamping end for elastically deforming under the top pressure of the tension rod assembly; The tension rod assembly comprises: a first tension rod and a second tension rod; wherein, One end of the first tensioning rod is connected to the power output end of the lever-type connecting rod assembly, and the other end is detachably connected to the connecting end of the second tensioning rod. The pressing end of the second tensioning rod is provided with an inverted conical surface structure. The inverted conical surface structure is used to gradually press the expansion sleeve assembly when moving close to the expansion sleeve assembly, so that the expansion sleeve assembly gradually expands and deforms.

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