Multi-station thermal spraying positioning tool

Abstract

The invention provides a multi-station thermal spraying positioning tool, which belongs to the technical field of thermal spraying processing devices and comprises a case, a plurality of workpiece fastening modules are mounted on the case, and transmission modules are mounted at the lower ends of the workpiece fastening modules; the workpiece fastening module comprises a bearing cylinder rotationally connected to the upper end in the case; the workpiece fastening module further comprises a restraining cylinder, and a plurality of fastening blocks A are arranged in the restraining cylinder. Vertical regulation and control units are mounted at the bottoms of the fastening blocks B and the bottoms of the fastening blocks B; and the exchange unit is used for eliminating the hard fastening force required for fastening the outer wall of the sprayed workpiece by the plurality of fastening blocks A when the plurality of fastening blocks B are dragged to approach the inner wall surface of the sprayed workpiece together in the sprayed workpiece to execute fastening approaching. The multi-station thermal spraying positioning tool solves the problems that in the using process of an existing multi-station thermal spraying positioning tool, time and labor are consumed, and the spraying efficiency is greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal spraying processing devices, and in particular relates to a multi-station thermal spraying positioning tool. Background Art

[0002] Thermal spraying uses a heat source such as a flame, electric arc, or plasma arc to heat the spray material to a molten or semi-molten state. The material is then atomized, and the atomized particles fly and impact the material surface, cooling and forming a coating. Common methods include arc spraying, flame spraying, and plasma spraying. Thermal spraying offers high practicality, very low production costs, and a convenient coating preparation process. The resulting coatings exhibit excellent performance and are widely used in industrial production. Based on the service conditions of different components, it can produce coatings with excellent wear resistance, corrosion resistance, and high temperature resistance. These coatings are widely used in aerospace, automotive, metallurgy, petrochemical, and other fields.

[0003] Prior art CN204999961U discloses a multi-station automated thermal spray auxiliary device, which includes a fixture frame with several equally spaced holes on the upper plate of the fixture frame. Several bearing sleeves are sequentially installed in the holes on the upper plate of the fixture frame, and the bearing sleeves are fixed to the fixture frame using fixing nuts; the lower end of each bearing sleeve is connected to a driven sprocket, which is connected to the driving sprocket by a belt; a reduction motor is installed in the center of the bottom of the fixture frame, which can drive the driving sprocket to rotate, thereby driving the driven sprocket to rotate in unison, ensuring the consistency of the spraying. During use, when the device needs to be sprayed on the other side, the sprayed workpiece needs to be removed from the device and then re-tightened on the device to perform spraying again, which is time-consuming and labor-intensive, greatly reducing the efficiency of spraying. Summary of the Invention

[0004] The present invention provides a multi-station thermal spray positioning tool, which aims to solve the problem that when the existing multi-station thermal spray positioning tool is used, when it is necessary to spray the other side, the sprayed workpiece needs to be removed from the device and then re-tightened on the device to perform spraying again, which is time-consuming and labor-intensive and greatly reduces the efficiency of spraying.

[0005] The embodiment of the present invention provides a multi-station thermal spray positioning tool, comprising a chassis, a plurality of workpiece fastening modules mounted on the chassis, and a transmission module mounted at the lower end of the workpiece fastening module; The workpiece fastening module includes a bearing cylinder screwed to the upper end of the chassis, and an assembly chamber is reserved in the bearing cylinder; The workpiece fastening module further comprises: a restraining cylinder, in which a plurality of fastening blocks A are installed, and a supporting unit A is installed between the plurality of fastening blocks A and the restraining cylinder; a plurality of fastening blocks B, and a plurality of fastening blocks B, and a vertical regulating unit is installed at the bottom of the plurality of fastening blocks B; a switching unit is used to eliminate the rigid fastening force required for the plurality of fastening blocks A to fasten the outer wall of the sprayed workpiece during the period of pulling the plurality of fastening blocks B together to approach the inner wall of the sprayed workpiece to perform fastening approach; when the sprayed workpiece is placed in the restraining cylinder, the sprayed workpiece is placed between the fastening blocks A and the fastening blocks B; The vertical control unit includes a bearing seat C and two pairs of slideways A. The two pairs of slideways A are fixedly connected to the upper end of the bearing seat C and are arranged circumferentially on the bearing seat C. A plurality of fastening blocks B are each movably engaged with the plurality of slideways A. The exchange unit contains: The movable ring A is screwed to the upper end of the assembly chamber. A plurality of arched openings A are reserved on the wall of the movable ring A. Guide pillars A are movably installed in the arched openings A. The guide pillars A are each movably installed on the side walls of the fastening blocks B. The movable ring B is screwed to the upper end of the assembly chamber. A plurality of arched openings B are reserved on the wall of the movable ring B. Guide pillars B are movably installed in the plurality of arched openings B. A plurality of avoidance openings B are provided in pairs with a plurality of guide posts B and pass through the upper wall surface reserved on the carrier tube. The plurality of guide posts B each pass through the plurality of avoidance openings B. A plurality of pressing platforms, each of which is fixedly connected to the upper end of a plurality of guide pillars B, and each of which is movably mounted on the upper end of the carrying cylinder; The power unit is used to pull the movable ring A and the movable ring B to rotate together, and the rotation directions of the movable ring A and the movable ring B are opposite to each other; The power unit includes: Rotating ring A, rotating ring A is fixedly connected to the outer peripheral wall of movable ring A; The rotating ring B is fixedly connected to the inner wall of the movable ring B; Motor A is fixedly connected to the upper end of the assembly chamber and is located between movable rings A and B. The rotating part of motor A is fixedly connected to the rotating disk. Several teeth are reserved on the outer peripheral wall of the rotating disk, the outer peripheral wall of the rotating ring A, and the inner peripheral wall of the rotating ring B, and they are connected to each other through the teeth.

[0006] Furthermore, the vertical control unit also includes: Avoidance port A is reserved at the upper end of the bearing tube, and a number of constraint ports A are reserved on the side wall of the avoidance port A to allow the fastening block B to move; Linear push rod, the linear push rod is fixedly connected to the lower end inside the assembly chamber, and the bearing seat C is fixedly connected to the output end of the linear push rod; The plurality of fastening blocks B are respectively passed through the plurality of restraint openings A and then movably engaged with the plurality of slideways A.

[0007] Furthermore, the support unit A comprises: The connecting port is reserved on the inner surface of the restraining cylinder, and the corresponding fastening block A can be movably installed in the connecting port; A support column, which passes through the restraining tube from the joint and extends outside the restraining tube; The spiral beryllium copper wire A is hoop-connected to the outer circumference of the support column and both sides are respectively fixedly connected to the fastening block A and the inner wall of the connecting port.

[0008] Furthermore, an assist unit is installed on the upper end of the support seat C, and the assist unit includes: Supporting seat A, supporting seat A is fixedly connected to the upper end of supporting seat C, and grooves are reserved on both sides; A pair of engaging seats, each of which is movably arranged in a pair of grooves, and a bearing seat B is arranged on the upper end of each of the engaging seats; A pair of constraint openings B are reserved at the upper end of the bearing tube, and the inner surface thereof is fixedly connected with a constraint seat, and the lower end of the bearing seat B is fittedly installed on the upper end of the constraint seat.

[0009] Furthermore, the assisting unit also includes: A pair of splice bars, each of which is fixedly connected to the upper end of the pair of splice seats and is movably spliced ​​to the edge of the pair of bearing seats B; A pair of slideways C, each of which is mounted on the lower end of a pair of bearing seats B, wherein a rotating column is movably mounted in each of the slideways C; A pair of concave seats, each of which is screwed onto a pair of rotating columns, and a supporting unit B is installed between the lower end and the pair of engaging seats; a pair of restraint blocks, each of which is fixedly connected to both sides of the bearing seat A near the upper end.

[0010] Furthermore, the support unit B comprises: An inlay column, the inlay column is fixedly connected to the inner wall of the inlay seat, and the upper end thereof passes through and is inlayed in the lower end of the concave seat; The spiral beryllium copper wire B is hoop-connected to the peripheral wall of the splicing column, and two sides of the spiral beryllium copper wire B are respectively fixedly connected to the concave seat and the lower end of the splicing column.

[0011] Furthermore, several connecting columns are embedded in the upper ends of several fastening blocks B, and the edges of several connecting columns are fixedly connected to the fastening blocks C. The spiral beryllium copper wire C is hooped on the peripheral wall of the connecting column, and the two sides of the spiral beryllium copper wire C are respectively fixedly connected to the fastening blocks C and the fastening blocks B.

[0012] Furthermore, the upper ends of the fastening block C and the fastening block A are both arched.

[0013] Furthermore, the transmission module includes an assembly frame fixedly connected to one side of the chassis and a sprocket fixedly connected to the lower end of the carrier cylinder. The sprockets are connected via a chain transmission. The assembly frame is fixedly connected to the motor B, and the rotating part of the motor B is fixedly connected to the lower end of one of the sprockets.

[0014] The beneficial effects of the present invention are: 1. The present invention can fasten the inner and outer walls of the sprayed workpiece separately through the installation of the workpiece fastening module, without removing the sprayed workpiece and fastening it again, saving time and effort, and greatly improving the processing speed of the device. In addition, through the installation of the transmission module, the workpiece fastening module can be pulled to rotate, thereby realizing rotary spraying of the sprayed workpiece.

[0015] 2. The present invention achieves automatic switching of the fastening of the outer wall and inner wall of the sprayed workpiece by installing a switching unit to switch the fastening block A and the fastening block B, so that the tooling has a dual fastening effect on the outer wall and inner wall of the sprayed workpiece, and automatically performs switching according to the spraying of the outer wall and inner wall of the sprayed workpiece; When the workpiece is in the constraint cylinder, the constraint seat supports the bearing seat B, and the bearing seat B supports the lower end of the workpiece, so that the workpiece is separated from the wall of the bearing cylinder. When spraying the inner wall of the workpiece, a larger area is left at the lower end of the inner surface of the workpiece for spraying. After the outer wall of the sprayed workpiece is tightened, the linear push rod pulls the bearing seat C to move, and changes the bearing seat C and the fastening block B to the bottom of the sprayed workpiece. The bearing seat B is constrained by the constraint of the constraint seat in the constraint port B and maintains the same vertical position. The bearing seat A continues to move downward under the traction of the bearing seat C, and the bearing seat A pulls the constraint block downward. During the period when the bearing seat A pulls the constraint block downward, the constraint block pulls the concave seat. When the concave seat contracts the support unit B, it pulls the rotating column to move in the slide C, and then pulls the bearing seat B toward the lower end of the sprayed workpiece to move, reducing the coverage of the bearing seat B on the lower end area of ​​the inner surface of the sprayed workpiece.

[0016] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 For the embodiment of the present invention Figure 1 Schematic diagram of the cross-section structure; Figure 3 For the embodiment of the present invention Figure 2 A schematic diagram of the structure at position M of FIG. Figure 4 This is a schematic diagram of the structure of the support cylinder when the spray workpiece is on the inner wall surface to be sprayed according to an embodiment of the present invention; Figure 5 For the embodiment of the present invention Figure 4 A schematic diagram of the enlarged structure at N; Figure 6 This is a schematic diagram of the internal structure of a workpiece fastening module as viewed from above according to an embodiment of the present invention; Figure 7 For the embodiment of the present invention Figure 6 A schematic diagram of the structure at E is enlarged; Figure 8 This is a schematic structural diagram of a power unit and a fastening block B according to an embodiment of the present invention; Figure 9 This is a structural diagram of a supporting base, a supporting base A, and a fastening block B according to an embodiment of the present invention; Figure 10 This is a structural diagram of a fastening block B according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the assembly structure of the supporting base A, the embedded base and other components of the embodiment of the present invention; Figure 12 This is a structural diagram of the restraint port B and the restraint seat according to an embodiment of the present invention; Figure numerals: 1, chassis; 2, workpiece fastening module; 3, transmission module; 21, bearing cylinder; 2101, assembly chamber; 22, constraint cylinder; 23, fastening block A; 24, fastening block B; 25, spraying workpiece; 26, avoidance opening A; 261, constraint opening A; 27, linear push rod; 28, bearing seat C; 29, slideway A; 210, connecting opening; 211, supporting column; 212, spiral beryllium copper wire A; 213, movable ring A; 214, arched opening A; 215, guide column A; 216, movable ring B; 217, arched opening B; 218, guide column B; 219, avoidance opening B; 220, pressing table; 2201, constraint rod ;2202, slideway B;221, rotating ring A;222, rotating ring B;223, motor A;2231, rotating disk;224, bearing seat A;225, embedded seat;226, bearing seat B;227, constraint opening B;228, constraint seat;229, embedded strip;230, slideway C;2301, rotating column;231, concave seat;232, constraint block;233, embedded column;234, spiral beryllium copper wire B;235, fastening block C;236, connecting column;237, spiral beryllium copper wire C;238, rotation direction A;239, rotation direction B;31, assembly frame;32, motor B;33, sprocket;34, chain. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Reference Figure 1 The embodiment of the present invention provides a multi-station thermal spray positioning tool, which includes a chassis 1, on which a plurality of workpiece fastening modules 2 are mounted, and a transmission module 3 is mounted at the lower end of the workpiece fastening module 2.

[0020] Through the installation of the workpiece fastening module 2, the inner and outer wall surfaces of the sprayed workpiece 25 can be fastened separately without removing the sprayed workpiece 25 and fastening it again, which saves time and effort and greatly improves the processing speed of the device. Moreover, through the installation of the transmission module 3, the workpiece fastening module 2 can be pulled to rotate, thereby realizing rotary spraying of the sprayed workpiece 25.

[0021] Reference Figure 2-Figure 9The workpiece fastening module 2 includes a supporting tube 21 screwed to the upper end of the inner part of the chassis 1, and the upper end of the supporting tube 21 extends out of the chassis 1. An assembly chamber 2101 is reserved in the supporting tube 21, and further includes: a restraining tube 22, in which a plurality of fastening blocks A23 are installed, and a supporting unit A is installed between the plurality of fastening blocks A23 and the restraining tube 22; a plurality of fastening blocks B24, a plurality of fastening blocks B24, and a plurality of fastening blocks B24 are provided with vertical adjustment units at the bottom; a replacement unit is used to eliminate the hard fastening force required for the plurality of fastening blocks A23 to fasten the outer wall of the sprayed workpiece 25 during the period of pulling the plurality of fastening blocks B24 together inside the sprayed workpiece 25 to approach the inner wall of the sprayed workpiece 25 for fastening approach; when the sprayed workpiece 25 is placed in the restraining tube 22, the sprayed workpiece 25 is placed between the fastening block A23 and the fastening block B24.

[0022] The restraining tube 22 is fixedly connected to the upper end of the supporting tube 21 .

[0023] When spraying the workpiece 25, when spraying the outer wall of the workpiece 25, the workpiece 25 is first placed in the constraint cylinder 22 and is between the fastening block A23 and the fastening block B24. Under the cooperation of the supporting unit A, the workpiece 25 can be stopped in advance. Then, through the changing unit, the fastening blocks B24 are pulled together inside the workpiece 25 to approach the inner surface of the workpiece 25 for fastening. During this period, the rigid fastening force required for the fastening blocks A23 to fasten the outer wall of the workpiece 25 is eliminated. After the inner wall of the workpiece 25 is fastened, the vertical position of the workpiece 25 and the fastening block B24 is changed through the vertical regulating unit to move the workpiece 25 away from the constraint cylinder 22, so that the outer wall of the workpiece 25 is completely released, thereby ensuring that the outer wall of the workpiece 25 can be fully sprayed. When spraying the inner wall of the spray workpiece 25, the spray workpiece 25 is moved downward by the vertical control unit and returned to the restraining cylinder 22. Then, the fastening blocks B24 are pulled away from the inner wall of the spray workpiece 25 by the replacement unit. After loosening the fastening of the inner wall of the spray workpiece 25, a hard fastening force is applied to the fastening blocks A23 to maintain the fastening position of the outer wall of the spray workpiece 25. Then, the vertical position of the fastening block B24 is changed by the vertical control unit so that the top of the fastening block B24 is below the spray workpiece 25 and no longer covers the inner wall of the spray workpiece 25. By installing a replacement unit to replace and pull the fastening block A23 and the fastening block B24, the fastening of the outer wall and the inner wall of the sprayed workpiece 25 can be automatically replaced, so that the tooling has a dual fastening effect on the outer wall and the inner wall of the sprayed workpiece 25, and automatically performs replacement according to the spraying of the outer wall and the inner wall of the sprayed workpiece 25.

[0024] Reference Figure 2 、 Figure 4 and Figure 9 The vertical control unit includes: an avoidance opening A26, which is reserved at the upper end of the bearing cylinder 21, and a plurality of constraint openings A261 for allowing the fastening block B24 to move are reserved on the side wall of the avoidance opening A26; a linear push rod 27, which is fixedly connected to the lower end inside the assembly chamber 2101; a bearing seat C28, which is fixedly connected to the output end of the linear push rod 27; two pairs of slides A29, which are fixedly connected to the upper end of the bearing seat C28, and the two pairs of slides A29 are circumferentially arranged on the bearing seat C28, and a plurality of fastening blocks B24 each pass through a plurality of constraint openings A261 and can be movably embedded in a plurality of slides A29.

[0025] The vertical position of the supporting seat C28 is changed by the linear push rod 27, and the supporting seat C28 pulls the vertical positions of the two pairs of fastening blocks B24 together through the slide A29 to perform regulation. While maintaining the vertical position change of the fastening blocks B24, the installation of the slide A29 prevents obstruction of the fastening change of the fastening blocks B24.

[0026] Reference Figure 2 and Figure 3 The supporting unit A includes: a connecting port 210, which is reserved on the inner surface of the constraint tube 22, and a corresponding fastening block A23 is movably installed in the connecting port 210; a supporting column 211, which extends from the connecting port 210 through the constraint tube 22 to the outside of the constraint tube 22; a spiral beryllium copper wire A212, which is hoop-connected to the outer circumference of the support column 211 and is fixedly connected to the fastening block A23 and the inner wall of the connecting port 210 on both sides.

[0027] By installing the support column 211 and the spiral beryllium copper wire A212, soft support is maintained for the fastening block A23 before the fastening block A23 is rigidly fastened by the replacement unit, so that after the spraying workpiece 25 is installed in the restraint cylinder 22, it can obtain the restraint support of the fastening block A23 and achieve the first stop of the spraying workpiece 25.

[0028] Reference Figure 2 、 Figure 3 and Figure 6-Figure 9The replacement unit includes: a movable ring A213, which is screwed to the upper end of the assembly chamber 2101, and a plurality of arched openings A214 are reserved on the wall of the movable ring A213, and guide columns A215 are movably installed in the plurality of arched openings A214, and the plurality of guide columns A215 are movably installed on the side walls of the plurality of fastening blocks B24; a movable ring B216, which is screwed to the upper end of the assembly chamber 2101, and a plurality of arched openings B217 are reserved on the wall of the movable ring B216, and guide columns B215 are movably installed in the plurality of arched openings B217. 18; a plurality of avoidance openings B219, a plurality of avoidance openings B219 and a plurality of guide columns B218 are arranged in pairs with each other, and pass through the upper wall surface reserved on the supporting tube 21, and a plurality of guide columns B218 respectively pass through a plurality of avoidance openings B219; a plurality of pressing platforms 220, a plurality of pressing platforms 220 are respectively fixedly connected to the upper ends of a plurality of guide columns B218, and a plurality of pressing platforms 220 can be movably installed on the upper end of the supporting tube 21; a power unit, used to pull the movable ring A213 and the movable ring B216 to rotate together, and the rotation directions of the movable ring A213 and the movable ring B216 are opposite to each other.

[0029] Both sides of the pressing platform 220 are fixedly connected to the restraining rods 2201. The restraining rods 2201 on both sides of the pressing platform 220 can be movably installed on the slides B2202. The slides B2202 are fixedly connected to the upper end of the supporting cylinder 21 to achieve the movability of the pressing platform 220 on the upper end of the supporting cylinder 21.

[0030] Before placing the workpiece 25 to be sprayed, the power unit pulls the movable ring A213 to rotate in the direction of rotation A238, and the movable ring B216 to rotate in the direction of rotation B239, so that a certain distance is maintained between the pressing platform 220 and the support column 211. The support column 211 is not rigidly fastened, and a certain distance is maintained between the fastening block B24 and the inner wall of the workpiece 25 to be sprayed, so that the workpiece 25 to be sprayed can be placed between the fastening blocks A23 and B24. During use, the arched opening A214 on the movable ring A213 rotates with the movable ring A213 to pull the guide post A215 to move, and the guide post A215 pulls the fastening block B24 to move toward the inner wall of the spraying workpiece 25. The arched opening B217 on the movable ring B216 rotates with the movable ring B216 to pull the guide post B218 to move, and the guide post B218 pulls the pressing platform 220 to move closer to the support post 211, while maintaining the distance between the support post 211 and the pressing platform 220. Then, after the spraying workpiece 25 is placed in the constraint cylinder 22 and is located between the fastening block B24 and the fastening block A23, the outer wall surface of the spraying workpiece 25 is sprayed. The power unit pulls the movable ring A213 to rotate along the rotation direction B239, and the pulling movable ring B216 to rotate along the rotation direction A238. The fastening block B24 slowly approaches the inner wall surface of the spraying workpiece 25, and the pressing platform 220 moves away from the supporting column 211 until the fastening block B24 fastens the inner wall surface of the spraying workpiece 25. Then, the power of the linear push rod 27 is turned on. The linear push rod 27 pulls the bearing seat C28 to move, and then pulls the fastening block B24 and the spraying workpiece 25 fastened on the fastening block B24 to move out of the constraint cylinder 22, so as to facilitate the spraying of the outer wall surface of the spraying workpiece 25. Then, when spraying the inner wall of the spray workpiece 25, the power of the linear push rod 27 is turned on, the support seat C28 is pulled back, and then the spray workpiece 25 is pulled back into the constraint cylinder 22, and then the movable ring A213 is pulled by the exchange unit to change along the rotation direction A238, and the movable ring B216 is pulled along the rotation direction B239, so that the fastening block B24 no longer fastens the inner wall of the spray workpiece 25, and the pressing platform 220 slowly approaches the support column 211 until the pressing platform 220 presses the support column 211 and then hardens the fastening block A23, so that the fastening block A23 maintains a firm fastening to the outer wall of the spray workpiece 25, and then the linear push rod 27 continues to pull the support seat C28 downward until the upper end of the fastening block B24 is under the spray workpiece 25, no longer covering the inside of the spray workpiece 25, so as to facilitate spraying the inner wall of the spray workpiece 25; After spraying the inner wall of the spray workpiece 25, the vertical position of the support seat C28 is changed by the linear push rod 27 so that the fastening block B24 is in the restraint cylinder 22, and the fastening block A23 and the fastening block B24 are exchanged through the exchange unit to place the initial form of the spray workpiece 25.

[0031] Reference Figure 6-Figure 8 The power unit includes: a rotating ring A221, which is fixedly connected to the outer peripheral wall of the movable ring A213; a rotating ring B222, which is fixedly connected to the inner peripheral wall of the movable ring B216; a motor A223, which is fixedly connected to the upper end of the assembly chamber 2101 and is located between the movable ring A213 and the movable ring B216. The rotating part of the motor A223 is fixedly connected to the rotating disk 2231. A number of teeth are reserved on the outer peripheral wall of the rotating disk 2231, the outer peripheral wall of the rotating ring A221 and the inner peripheral wall of the rotating ring B222, and they are connected to each other through the teeth.

[0032] By controlling the rotation direction of the motor A223, the rotation direction of the rotating disk 2231 is controlled. During the period when the motor A223 pulls the rotating disk 2231 to rotate, when the movable circle A213 rotates along the rotation direction B239, the movable circle B216 rotates along the rotation direction A238. During the period when the motor A223 pulls the rotating disk 2231 to rotate, when the movable circle A213 rotates along the rotation direction A238, the movable circle B216 rotates along the rotation direction B239.

[0033] Reference Figure 4 、 Figure 5 、 Figure 8 、 Figure 9 、 Figure 11 and Figure 12 An assisting unit is also installed at the upper end of the bearing seat C28, and the assisting unit includes: a bearing seat A224, the bearing seat A224 is fixedly connected to the upper end of the bearing seat C28, and grooves are reserved on both sides; a pair of engaging seats 225, a pair of engaging seats 225 are each movably arranged in a pair of grooves, and a bearing seat B226 is installed on the upper end; a pair of constraint openings B227, a pair of constraint openings B227 are reserved at the upper end of the bearing tube 21, and the inner surface is fixedly connected to the constraint seat 228, and the lower end of the bearing seat B226 is fitted on the upper end of the constraint seat 228.

[0034] When the spray workpiece 25 is in the constraint cylinder 22, the constraint seat 228 supports the supporting seat B226, and the supporting seat B226 supports the lower end of the spray workpiece 25, so that the spray workpiece 25 and the wall of the supporting cylinder 21 are separated. When spraying the inner wall of the spray workpiece 25, a larger area is left at the lower end of the inner surface of the spray workpiece 25 for spraying.

[0035] Reference Figure 4 、 Figure 5 、 Figure 8 、 Figure 9 、 Figure 11 and Figure 12 The assisting unit further includes: a pair of splicing bars 229, a pair of splicing bars 229 are respectively fixedly connected to the upper end of a pair of splicing seats 225, and are respectively movably spliced ​​to the edge of a pair of supporting seats B226; a pair of slides C230, a pair of slides C230 are respectively arranged at the lower end of a pair of supporting seats B226, and a rotating column 2301 is movably arranged in the pair of slides C230; a pair of concave seats 231, a pair of concave seats 231 are respectively screwed to a pair of rotating columns 2301, and a supporting unit B is respectively arranged between the lower end and the pair of splicing seats 225; a pair of constraint blocks 232, a pair of constraint blocks 232 are fixedly connected to both sides of the supporting seat A224 near the upper end.

[0036] After the outer wall of the sprayed workpiece 25 is tightened, the linear push rod 27 pulls the support seat C28 to move, and changes the support seat C28 and the fastening block B24 to be at the bottom of the sprayed workpiece 25. The support seat B226 is maintained in the same vertical position under the constraint of the constraint seat 228 in the constraint port B227, and the support seat A224 continues to move downward under the traction of the support seat C28. The support seat A224 pulls the constraint block 232 downward. While the support seat A224 pulls the constraint block 232 downward, the constraint block 232 pulls the concave seat 231. The concave seat 231 pulls the rotating column 2301 to move in the slide C230 while the support unit B is contracted, and then pulls the support seat B226 toward the lower end of the sprayed workpiece 25 to reduce the coverage of the support seat B226 on the lower end area of ​​the inner surface of the sprayed workpiece 25.

[0037] Reference Figure 5 and Figure 12 The constraint seat 228 is fixedly connected in the constraint opening B227, the bearing seat B226 is in the constraint opening B227, and is fitted on the upper end of the constraint seat 228, so the constraint seat 228 will constrain the bearing seat B226 to move continuously downward.

[0038] Reference Figure 11 The supporting unit B includes: an embedding column 233, the embedding column 233 is fixedly connected to the inner wall of the embedding seat 225, and the upper end passes through and is embedded in the lower end of the concave seat 231; a spiral beryllium copper wire B234, the spiral beryllium copper wire B234 is hoop-connected to the peripheral wall of the embedding column 233, and its two sides are respectively fixedly connected to the concave seat 231 and the lower end of the embedding column 233.

[0039] When the supporting seat B226 moves upward and away from the restraint opening B227, the spiral beryllium copper wire B234 can press the concave seat 231 to move upward relative to the embedded seat 225 until it returns to its original position, allowing the supporting seat B226 to move away from the lower end of the sprayed workpiece 25, so as to reduce the covering of the lower end of the sprayed workpiece 25, and facilitate the subsequent spraying of the outer wall of the sprayed workpiece 25.

[0040] Reference Figure 10 A plurality of connecting columns 236 are embedded in the upper ends of the fastening blocks B24, and the edges of the connecting columns 236 are fixedly connected to the fastening blocks C235. A spiral beryllium copper wire C237 is clamped on the peripheral wall of the connecting column 236, and the two sides of the spiral beryllium copper wire C237 are respectively fixedly connected to the fastening blocks C235 and the fastening blocks B24.

[0041] By installing the connecting column 236 and the spiral beryllium copper wire C237, the fastening block C235 is softly supported on the fastening block B24. When the sprayed workpiece 25 is placed at the position of the fastening block B24 and the fastening block A23, the fastening block C235 and the fastening block A23 can be softly supported, and a distance is maintained between the fastening block C235 and the fastening block A23. When the sprayed workpiece 25 is embedded in the gap, the fastening block C235 and the fastening block A23 can provide a movable avoidance range, and when the sprayed workpiece 25 is no longer subjected to external forces, the fastening block C235 and the fastening block A23 can perform a variable stop on the position of the sprayed workpiece 25 under deformation cooperation, thereby achieving the purpose of pre-stop.

[0042] Reference Figure 2 、 Figure 3 and Figure 10 The upper ends of the fastening block C235 and the fastening block A23 are both arched.

[0043] Through the installed arched wall, when the sprayed workpiece 25 is embedded in the gap, the arched wall at the upper end of the fastening block C235 and the fastening block A23 can provide guidance to prevent the sprayed workpiece 25 from being pressed by the upper ends of the fastening block C235 and the fastening block A23 when the sprayed workpiece 25 is embedded in the gap.

[0044] Reference Figure 2 The transmission module 3 includes an assembly frame 31 fixedly connected to one side of the chassis 1 and a sprocket 33 fixedly connected to the lower end of the carrier cylinder 21. The sprockets 33 are connected via a chain 34. The assembly frame 31 is fixedly connected to the motor B32, and the rotating part of the motor B32 is fixedly connected to the lower end of one of the sprockets 33.

[0045] The motor B32 drives one of the sprockets 33 to rotate, and with the cooperation of the chain 34 , the plurality of carrier cylinders 21 rotate simultaneously, thereby achieving rotary spraying of the spray workpiece 25 .

[0046] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station thermal spray positioning tool, comprising a chassis, characterized in that: Several workpiece fastening modules are installed on the chassis, and transmission modules are installed at the lower ends of the workpiece fastening modules; The workpiece fastening module includes a bearing cylinder screwed to the upper end of the chassis, and an assembly chamber is reserved in the bearing cylinder; The workpiece fastening module further comprises: a restraining cylinder, in which a plurality of fastening blocks A are installed, and a supporting unit A is installed between the plurality of fastening blocks A and the restraining cylinder; a plurality of fastening blocks B, and a plurality of fastening blocks B, and a vertical regulating unit is installed at the bottom of the plurality of fastening blocks B; a switching unit is used to eliminate the rigid fastening force required for the plurality of fastening blocks A to fasten the outer wall of the sprayed workpiece during the period of pulling the plurality of fastening blocks B together to approach the inner wall of the sprayed workpiece to perform fastening approach; when the sprayed workpiece is placed in the restraining cylinder, the sprayed workpiece is placed between the fastening blocks A and the fastening blocks B; The vertical control unit includes a bearing seat C and two pairs of slideways A. The two pairs of slideways A are fixedly connected to the upper end of the bearing seat C and are arranged circumferentially on the bearing seat C. A plurality of fastening blocks B are each movably engaged with the plurality of slideways A. The exchange unit contains: The movable ring A is screwed to the upper end of the assembly chamber. A plurality of arched openings A are reserved on the wall of the movable ring A. Guide pillars A are movably installed in the arched openings A. The guide pillars A are each movably installed on the side walls of the fastening blocks B. The movable ring B is screwed to the upper end of the assembly chamber. A plurality of arched openings B are reserved on the wall of the movable ring B. Guide pillars B are movably installed in the plurality of arched openings B. A plurality of avoidance openings B are provided in pairs with a plurality of guide posts B and pass through the upper wall surface reserved on the carrier tube. The plurality of guide posts B each pass through the plurality of avoidance openings B. A plurality of pressing platforms, each of which is fixedly connected to the upper end of a plurality of guide pillars B, and each of which is movably mounted on the upper end of the carrying cylinder; The power unit is used to pull the movable ring A and the movable ring B to rotate together, and the rotation directions of the movable ring A and the movable ring B are opposite to each other; The power unit includes: Rotating ring A, rotating ring A is fixedly connected to the outer peripheral wall of movable ring A; The rotating ring B is fixedly connected to the inner wall of the movable ring B; Motor A is fixedly connected to the upper end of the assembly chamber and is located between movable rings A and B. The rotating part of motor A is fixedly connected to the rotating disk. Several teeth are reserved on the outer peripheral wall of the rotating disk, the outer peripheral wall of the rotating ring A, and the inner peripheral wall of the rotating ring B, and they are connected to each other through the teeth.

2. The multi-station thermal spray positioning tool according to claim 1, characterized in that: The vertical control unit also includes: Avoidance port A is reserved at the upper end of the bearing tube, and a number of constraint ports A are reserved on the side wall of the avoidance port A to allow the fastening block B to move; Linear push rod, the linear push rod is fixedly connected to the lower end inside the assembly chamber, and the bearing seat C is fixedly connected to the output end of the linear push rod; The plurality of fastening blocks B are respectively passed through the plurality of restraint openings A and then movably engaged with the plurality of slideways A.

3. The multi-station thermal spray positioning tool according to claim 2, characterized in that: Support unit A includes: The connecting port is reserved on the inner surface of the restraining cylinder, and the corresponding fastening block A can be movably installed in the connecting port; A support column, which passes through the restraining tube from the joint and extends outside the restraining tube; The spiral beryllium copper wire A is hoop-connected to the outer circumference of the support column and both sides are respectively fixedly connected to the fastening block A and the inner wall of the connecting port.

4. The multi-station thermal spray positioning tool according to claim 3, characterized in that: An auxiliary unit is also installed on the upper end of the support seat C, which includes: Supporting seat A, supporting seat A is fixedly connected to the upper end of supporting seat C, and grooves are reserved on both sides; A pair of engaging seats, each of which is movably arranged in a pair of grooves, and a bearing seat B is arranged on the upper end of each of the engaging seats; A pair of constraint openings B are reserved at the upper end of the bearing tube, and the inner surface thereof is fixedly connected with a constraint seat, and the lower end of the bearing seat B is fittedly installed on the upper end of the constraint seat.

5. The multi-station thermal spray positioning tool according to claim 4, characterized in that: The assistance unit also includes: A pair of splice bars, each of which is fixedly connected to the upper end of the pair of splice seats and is movably spliced ​​to the edge of the pair of bearing seats B; A pair of slideways C, each of which is mounted on the lower end of a pair of bearing seats B, wherein a rotating column is movably mounted in each of the slideways C; A pair of concave seats, each of which is screwed onto a pair of rotating columns, and a supporting unit B is installed between the lower end and the pair of engaging seats; a pair of restraint blocks, each of which is fixedly connected to both sides of the bearing seat A near the upper end.

6. The multi-station thermal spray positioning tool according to claim 5, characterized in that: Support unit B includes: An inlay column, the inlay column is fixedly connected to the inner wall of the inlay seat, and the upper end thereof passes through and is inlayed in the lower end of the concave seat; The spiral beryllium copper wire B is hoop-connected to the peripheral wall of the splicing column, and two sides of the spiral beryllium copper wire B are respectively fixedly connected to the concave seat and the lower end of the splicing column.

7. The multi-station thermal spray positioning tool according to claim 6, characterized in that: The upper ends of the fastening blocks B are embedded with a plurality of connecting columns, the edges of the connecting columns are fixedly connected to the fastening blocks C, the peripheral walls of the connecting columns are hooped with spiral beryllium copper wire C, and the two sides of the spiral beryllium copper wire C are fixedly connected to the fastening blocks C and the fastening blocks B respectively.

8. The multi-station thermal spray positioning tool according to claim 7, characterized in that: The upper ends of the fastening block C and the fastening block A are both arched.

9. The multi-station thermal spray positioning tool according to claim 1, characterized in that: The transmission module includes an assembly frame fixedly connected to one side of the chassis and a sprocket fixedly connected to the lower end of the carrier tube. The sprockets are connected via a chain transmission. The assembly frame is fixedly connected to the motor B, and the rotating part of the motor B is fixedly connected to the lower end of one of the sprockets.

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