A needle punching device for carbon-carbon crucibles

Abstract

The application provides a needling device for a carbon-carbon crucible, and relates to the technical field of needling devices.The application is provided with a first needling unit and a second needling unit and is arranged at both ends of a crucible part to perform needling operation, and the application is further provided with a control unit which is electrically connected with the crucible mounting unit, the first needling unit and the second needling unit.In the whole operation process, the application can realize automatic needling movement mode.Compared with the traditional manual operation mode, the application can ensure that the force of each needling is uniform, the needling depth and the needling density are kept uniform, and the uncertainty of relying on manual operation experience is eliminated.The application can ensure product quality, reduce labor intensity of manual operation, and is more efficient in needling work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of needling device, in particular to a needling device for carbon-carbon crucible. BACKGROUND

[0002] Carbon-carbon composite material is one of the advanced composite materials widely used at present, which is a composite material formed by carbon fiber or various carbon fabrics reinforcing carbon matrix, and has excellent properties such as low density, high strength, wear resistance, high temperature resistance, small thermal expansion coefficient, etc. The material has become one of the important basic materials in the fields of aerospace, metallurgy, new energy, etc., and is an ideal substitute for graphite products and heat-resistant steel.

[0003] During the production of carbon-carbon crucible, carbon fiber yarns are used for axial winding of the crucible at different angles due to the requirements of the production process. The included angle between the fiber yarns and the center line of the carbon-carbon crucible is called the eccentric angle. In order to obtain high mechanical properties of the carbon-carbon crucible preform, different eccentric angle fiber yarns are often used for axial winding, and needle punching is required after each layer of winding to make the yarns of different layers crosslink. The needle perpendicular to the surface of the yarn obtains the best crosslinking effect.

[0004] Because the winding angle of each layer is different, in order to make the needle perpendicular to the yarn during needle punching, the body part of the crucible has been completed by machine, and the bottom part of the crucible is mostly manually needle punched by personnel. Although it can ensure the direction of needle punching and make the needle perpendicular to the yarn, it also has the following disadvantages: the needle punching depth is not uniform, manual needle punching cannot ensure the uniformity of force every time, so the needle punching depth is not uniform; the needle punching density is not uniform, manual needle punching cannot ensure that the density of any area is uniform or close, and it completely depends on the experience of personnel; the needle punching time is long, the resistance of each needle is about 10N, the number of needles is generally controlled within 10 by the needle handle, and a lot of time is needed to complete a layer of needle punching, so the efficiency of needle punching is low; the labor intensity is high, the personnel need to keep the needle punching action for a long time, and the labor intensity of the personnel is high. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a needling device for carbon-carbon crucible to solve the problems in the background art.

[0006] In order to achieve the above-mentioned purposes and other related purposes, the present application provides a needling device for carbon-carbon crucible, comprising:

[0007] a crucible mounting unit, a first needle punching unit, a second needle punching unit and a control unit;

[0008] The crucible mounting unit comprises a crucible rotation module, a first needle punching unit and a second needle punching unit.

[0009] The first needle punching unit and the second needle punching unit are arranged at two ends of the crucible along the length direction, and are used for performing needle punching operation on the bottom of the crucible.

[0010] The control unit is electrically connected with the crucible mounting unit, the first needle punching unit and the second needle punching unit, and is used for controlling the operation of the crucible mounting unit, the first needle punching unit and the second needle punching unit.

[0011] Optionally, the crucible mounting unit further comprises a crucible plane rotation module, and the crucible plane rotation module comprises a crucible plane rotation driving assembly and a crucible plane rotation transmission assembly.

[0012] The crucible plane rotation driving assembly comprises a crucible plane rotation driving box, a crucible plane rotation driving motor, a crucible plane rotation driving shaft and a crucible plane rotation power output shaft, the crucible plane rotation driving motor is arranged in the interior of the crucible plane rotation driving box, the crucible plane rotation driving motor is connected with the crucible plane rotation driving shaft, and the crucible plane rotation driving shaft is connected with the crucible plane rotation power output shaft through synchronous belt transmission.

[0013] The crucible plane rotation transmission assembly comprises a first crucible plane rotation transmission rod, a second crucible plane rotation transmission rod and a crucible plane rotation top fixing rod, the rod wall of the first crucible plane rotation transmission rod is connected with the end of the crucible plane rotation power output shaft, the end of the first crucible plane rotation transmission rod is connected with the crucible mounting frame, one end of the second crucible plane rotation transmission rod is rotationally arranged on the side wall of the crucible plane rotation top fixing rod, the other end of the second crucible plane rotation transmission rod is connected with the crucible mounting frame, the crucible plane rotation power output shaft and the crucible plane rotation top fixing rod are coaxial in space position, and the crucible plane rotation module drives the crucible rotation module and the crucible to adjust rotation in the plane direction.

[0014] Optionally, the first needle punching unit comprises a first needle punching support, a first needle punching position adjustment module and a first needle punching action module.

[0015] The first needle punching position adjustment module and the first needle punching action module are both arranged on the first needle punching support, and the first needle punching position adjustment module is used for adjusting the needle punching position and angle of the first needle punching action module.

[0016] Optionally, the first needling action module comprises a first needling driving assembly and a first needle row assembly, and the first needling driving assembly drives the first needle row assembly to perform needling action.

[0017] The first needle row assembly comprises a first needle row plate, a first needling pressing plate and a bearing plate, the first needle row plate, the first needling pressing plate and the bearing plate are sequentially connected with each other, an outer surface of the first needling pressing plate is provided with a first needle row area, the first needle row area is fan-shaped, a plurality of first needling holes are arranged on the first needle row area, the first needling pressing plate is provided with a pressing groove, an outer contour of the pressing groove is the same as an outer contour of the first needle row area, the first needling holes are used for mounting first puncture needles, bottom ends of the first puncture needles pass through the first needling holes and abut against the pressing groove, and sharp ends of the first puncture needles are exposed on a surface of the first needle row area.

[0018] Optionally, the first needle row assembly further comprises a needle row quick disassembly assembly, the needle row quick disassembly assembly comprises a roll pin and a positioning fixed plate, one end of the positioning fixed plate is connected with the bearing plate, the positioning fixed plate is provided with a first matching hole, a top of the first needle row plate is provided with a second matching hole, the first matching hole and the second matching hole are both through holes, and the roll pin passes through the first matching hole and the second matching hole to disassemble and connect the first needle row plate and the bearing plate.

[0019] Optionally, the first needling driving assembly comprises a first air cylinder, a cylinder mounting plate and a first guide group.

[0020] The first air cylinder is mounted on the cylinder mounting plate, a telescopic part of the first air cylinder passes through the cylinder mounting plate and is connected with the bearing plate, the bearing plate is provided with a clamping block, an end of the telescopic part of the first air cylinder is provided with a ball head push block, the ball head push block is in clamping and fitting connection with the clamping block, the first guide group comprises a plurality of first guide columns and a plurality of first bushings, the first guide columns are slidingly mounted on the cylinder mounting plate through the first bushings, one end of the first guide columns is connected with the bearing plate, and the other end of the first guide columns is provided with a limiting block.

[0021] Optionally, the first needling position adjustment module comprises a first adjusting group, a second adjusting group, a third adjusting group and a first needling mounting bottom plate, the first adjusting group comprises a first X-direction adjusting plate and a first X-direction fixed plate, the second adjusting group comprises a first Z-direction rotating seat and a first Z-direction adjusting plate, and the third adjusting group comprises a first Y-direction rotating seat.

[0022] The first X-direction adjusting plate is mounted at the bottom of the cylinder mounting plate, the first X-direction sliding groove is arranged on the first X-direction fixed plate, the first X-direction adjusting plate and the first X-direction sliding groove are in sliding fit, the first X-direction waist-shaped hole is arranged on the first X-direction adjusting plate, the first X-direction locking hole is arranged on the first X-direction fixed plate, the first X-direction locking piece is arranged between the first X-direction adjusting plate and the first X-direction fixed plate, and the first X-direction locking piece is in fit with the first X-direction waist-shaped hole and the first X-direction locking hole in sequence; the first Z-direction rotating seat is rotatably mounted on the first Y-direction rotating seat, and the top of the first Z-direction rotating seat is connected with the bottom of the first X-direction fixed plate; the first needle punching mounting bottom plate is provided with the first Y-direction mounting support, and the first Y-direction rotating seat is rotatably mounted on the first Y-direction mounting support; the first needle punching support is provided with the first Z-direction fixed plate, the second adjusting group further comprises a first Z-direction adjusting screw and a first Z-direction threaded fixed block, the first Z-direction threaded fixed block is mounted on the first Z-direction fixed plate, the first Z-direction adjusting screw and the first Z-direction threaded fixed block are in threaded fit, the top end of the first Z-direction adjusting screw is provided with a first Z-direction adjusting handle, and the bottom end of the first Z-direction adjusting screw is connected with the first Z-direction adjusting plate.

[0023] Optionally, the second needle punching unit comprises a second needle punching support, a plurality of small needle punching modules and a second needle punching position adjusting module; the plurality of small needle punching modules and the second needle punching position adjusting module are mounted on the second needle punching support, and the second needle punching position adjusting module is used for adjusting the needle punching position and angle of the small needle punching module.

[0024] Optionally, the second needle punching position adjusting module comprises a second Z-direction displacement adjusting device and an elevation angle adjusting device.

[0025] The second Z-direction displacement adjusting device comprises a second Z-direction lifting plate, a second Z-direction fixed plate, a screw lifting device and a second guide group, the second Z-direction fixed plate is mounted on the second needle punching support, the main body of the screw lifting device is mounted on the second Z-direction fixed plate, the top pushing end of the screw lifting device drives the second Z-direction lifting plate to move up and down, the second guide group comprises a plurality of lifting guide columns, one end of the lifting guide column is fixed at the bottom of the second Z-direction lifting plate, and the other end of the lifting guide column passes through and is slidably mounted on the second Z-direction fixed plate.

[0026] The elevation angle adjusting device comprises an adjusting support mounting plate and an adjusting rotating assembly, each of the small needle punching mold groups is arranged and mounted on the surface of the adjusting support mounting plate in sequence, and the arrangement direction of each of the small needle punching mold groups is arc-shaped, both ends of the adjusting support mounting plate are provided with rotating adjusting plates, both sides of the second Z-direction lifting plate are provided with fixed adjusting plates, the adjusting rotating assembly comprises an adjusting rotating shaft and an adjusting locking piece, the rotating adjusting plates and the fixed adjusting plates are rotationally connected through the adjusting rotating shaft, the rotating adjusting plates are provided with arc-shaped waist holes, the fixed adjusting plates are provided with fixed holes, and the adjusting locking piece is matched with the arc-shaped waist holes and the fixed holes.

[0027] Optionally, the small needle punching mold group comprises a small needle driving assembly, a small needle needle row assembly and a small needle position adjusting assembly.

[0028] The small needle driving assembly comprises a second cylinder and a small needle guide group, the small needle needle row assembly comprises a small needle fixing plate, a small needle connecting plate and a small needle row piece, the small needle row piece is used for placing and mounting small needles, the small needle row piece is mounted on the small needle fixing plate through the small needle connecting plate, the second cylinder is mounted on a sheet metal connecting piece, the telescopic end of the second cylinder is connected with the small needle fixing plate, and the second cylinder drives the small needle row assembly to move by needle punching; the small needle guide group comprises a small needle guide column and a small needle bushing, one end of the small needle guide column is fixed on the small needle fixing plate, and the other end of the small needle guide column is slidably mounted on the sheet metal connecting piece through the small needle bushing;

[0029] The small needle position adjusting assembly comprises a bottom adjusting handle, a bottom adjusting screw, a bottom fixing block and a bottom mounting block, the bottom fixing block is fixed on the adjusting support mounting plate, the bottom adjusting screw is threadedly and rotationally matched with the bottom fixing block, one end of the bottom adjusting screw is connected with the bottom adjusting handle, and the other end of the bottom adjusting screw is connected with the bottom mounting block; the bottom mounting block and the adjusting support mounting plate are provided with an adjusting locking piece, the bottom mounting block is provided with a strip-shaped hole, the length direction of the strip-shaped hole is parallel to the length direction of the bottom adjusting screw, the adjusting support mounting plate is provided with an adjusting matching hole, and the adjusting locking piece is matched with the strip-shaped hole and the adjusting matching hole.

[0030] As described above, the needle punching device for the carbon-carbon crucible has at least the following beneficial effects:

[0031] The application provides a needling device for carbon-carbon crucible, which can be applied to the needling process in the production process of the carbon-carbon crucible. The crucible mounting unit provided in the application can be used to mount and drive the crucible piece to be processed to rotate to facilitate the needling operation. The first needling unit and the second needling unit are provided in the application and are arranged at the two ends of the crucible piece to perform the needling operation. Meanwhile, the control unit is arranged in the application and is electrically connected with the crucible mounting unit, the first needling unit and the second needling unit. The automatic needling movement mode can be realized in the whole operation process. Compared with the traditional manual operation mode, the force of each needling operation can be uniform, the needling depth and the needling density can be kept uniform, the uncertainty of the dependence on the manual operation experience is eliminated, the product quality is ensured, the labor intensity of the manual operation is reduced, and the needling work efficiency is higher.

[0032] The two needling units provided in the application have different advantages. The first needle row assembly in the first needling action module of the first needling unit is a whole needling structure. The first needle row area provided on the first needle row plate is in a fan shape, can cover the arc surface needling area of the bottom of the crucible, ensure the completeness of the needling, and the whole needling structure of the first needling unit can ensure that the needling effect is more uniform and better. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The whole device schematic diagram of the needling device for carbon-carbon crucible is shown in the application.

[0034] Figure 2 The structure schematic diagram of the crucible mounting unit in the application is shown.

[0035] Figure 3 The structure schematic diagram of the crucible mounting unit in the application (without mounting the crucible piece) is shown.

[0036] Figure 4 The internal structure schematic diagram of the crucible horizontal rotation driving assembly in the application is shown.

[0037] Figure 5The overall arrangement of the first needling unit in the present application is shown in a schematic view (first perspective view);

[0038] Figure 6 The overall arrangement of the first needling unit in the present application is shown in a schematic view (second perspective view);

[0039] Figure 7 The overall arrangement of the first needling unit in the present application is shown in a schematic view (second perspective view); Figure 6 The enlarged schematic view of the portion A in the middle;

[0040] Figure 8 The cooperation of the first needling position adjustment module and the first needling action module in the present application is shown in an exploded view;

[0041] Figure 9 The structure of the needle row quick-disassembly assembly in the present application is shown in a schematic view;

[0042] Figure 10 The cooperation of the first needling position adjustment module and the first needling action module in the present application is shown in a schematic view;

[0043] Figure 11 The overall arrangement of the second needling unit in the present application is shown in a schematic view;

[0044] Figure 12 The cooperation of the second needling support and the second needling position adjustment module in the present application is shown in a schematic view;

[0045] Figure 13 The cooperation of the second needling support and the second needling position adjustment module in the present application is shown in a side view;

[0046] Figure 14 The overall structure of the small needling needle module in the present application is shown in a schematic view;

[0047] Figure 15 The cross-sectional structure of the small needling needle module in the present application is shown in a schematic view. DETAILED DESCRIPTION

[0048] The embodiments of the present application are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in the present specification.

[0049] Please refer to Figures 1 to 15It is to be understood that the structures, proportions, sizes, etc. shown in the drawings accompanying the present specification are merely intended to assist understanding of the content disclosed herein, and are not intended to limit the scope of the present application, and therefore do not have technical significance. Any modification of the structures, change of the proportional relationship, or adjustment of the size, which does not affect the effects and purposes of the present application, should still fall within the scope of the content disclosed herein. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and "one" used in the present specification are merely for the convenience of clear description, and are not intended to limit the scope of the present application. The change or adjustment of the relative relationship, without substantial change of the technical content, should also be considered as the scope of the present application.

[0050] The following embodiments are merely for illustration. The embodiments can be combined, and are not limited to the content shown in the following single embodiment.

[0051] Please refer to Figures 1-15The application provides a needle punching device for a carbon-carbon crucible, which comprises a crucible mounting unit, a first needle punching unit 2, a second needle punching unit 3 and a control unit; the crucible mounting unit comprises a crucible rotation module, the crucible rotation module comprises a crucible rotation driving assembly, a crucible mounting frame 101 and a crucible mounting shaft 107, the crucible mounting shaft 107 is used for fixedly mounting a crucible piece 0, the crucible mounting shaft 107 is rotationally mounted on the crucible mounting frame 101, and the crucible rotation driving assembly drives the crucible mounting shaft 107 to rotate; the first needle punching unit 2 and the second needle punching unit 3 are respectively arranged at two ends of the crucible piece 0 in the length direction, the first needle punching unit 2 and the second needle punching unit 3 are used for performing needle punching operation on the two end crucible bottoms of the crucible piece 0; the control unit is electrically connected with the crucible mounting unit, the first needle punching unit 2 and the second needle punching unit 3 respectively, and the control unit is used for controlling the operation of the crucible mounting unit, the first needle punching unit 2 and the second needle punching unit 3. Optionally, the control module comprises a PLC controller, automatic needle punching action is realized by logically controlling the sequential action of each device component through the PLC controller, and the rotation driving assembly in the crucible rotation module can select conventional driving transmission members such as a motor, a transmission belt and a chain, and meets the rotation use requirement. The first needle punching unit 2 and the second needle punching unit 3 are arranged in the application and are respectively arranged at the two ends of the crucible piece 0 to perform needle punching operation, and the control unit is further arranged in the application and is electrically connected with the crucible mounting unit, the first needle punching unit 2 and the second needle punching unit 3. In the whole operation process, the automatic needle punching movement mode can be realized, compared with the traditional manual operation mode, the force of each needle punching can be uniform, the needle punching depth and the needle punching density can be kept uniform, the uncertainty of relying on manual operation experience is eliminated, the labor intensity of manual operation is reduced while the product quality is ensured, and the needle punching work efficiency is more efficient.

[0052] In this embodiment, please refer to Figures 1-4, the crucible mounting unit further comprises a crucible plane rotation module, the crucible plane rotation module comprises a crucible plane rotation driving assembly and a crucible plane rotation transmission assembly; the crucible plane rotation driving assembly comprises a crucible plane rotation driving box 102, a crucible plane rotation driving motor 103, a crucible plane rotation driving shaft 104 and a crucible plane rotation power output shaft 105, the crucible plane rotation driving motor 103 is arranged in the interior of the crucible plane rotation driving box 102, the crucible plane rotation driving motor 103 and the crucible plane rotation driving shaft 104 are connected, the crucible plane rotation driving shaft 104 and the crucible plane rotation power output shaft 105 are transmissionally connected through a synchronous belt 106; the crucible plane rotation transmission assembly comprises a first crucible plane rotation transmission rod 108, a second crucible plane rotation transmission rod 109 and a crucible plane rotation top fixing rod 110, the rod wall of the first crucible plane rotation transmission rod 108 and the end of the crucible plane rotation power output shaft 105 are connected, the end of the first crucible plane rotation transmission rod 108 and the crucible mounting frame 101 are connected, one end of the second crucible plane rotation transmission rod 109 is rotationally mounted on the side wall of the crucible plane rotation top fixing rod 110, the other end of the second crucible plane rotation transmission rod 109 and the crucible mounting frame 101 are connected, the crucible plane rotation power output shaft 105 and the crucible plane rotation top fixing rod 110 are coaxial in spatial position, the crucible plane rotation module drives the crucible around the shaft rotation module and the crucible piece 0 to adjust rotation in the plane direction. Optionally, in actual application, the top fixing rod can be fixedly mounted in the external environment of the use scene, wherein bearing support shafts can be used for cooperation rotation in the rotation cooperation of the top setting, the crucible plane rotation power output shaft 105 is taken as the driving end, and the crucible plane rotation top fixing rod 110 of the top is taken as the driven end, so that the crucible around the shaft rotation module and the crucible piece 0 take the axis between the crucible plane rotation power output shaft 105 and the crucible plane rotation top fixing rod 110 as the rotation axis, and are rotated in the plane direction from the perspective of the overhead angle direction, so that the rotation setting of the crucible around the shaft rotation module can be adjusted and set at an additional different angle on the basis of the conventional rotation setting, and the effect coverage of needling can be more comprehensive.

[0053] In the embodiment, please refer to Figures 5-10 , the first needling unit 2 comprises a first needling support 201, a first needling position adjustment module 202 and a first needling action module 203; the first needling position adjustment module 202 and the first needling action module 203 are both mounted on the first needling support 201, and the first needling position adjustment module 202 is used for adjusting the needling position and angle of the first needling action module 203.

[0054] In the embodiment, please refer to Figures 5-10The first needle pricking action module 203 comprises a first needle pricking driving assembly and a first needle row assembly, the first needle pricking driving assembly drives the first needle row assembly to perform needle pricking action; the first needle row assembly comprises a first needle row plate 204, a first needle pricking pressing plate 205 and a bearing plate 206, the first needle row plate 204, the first needle pricking pressing plate 205 and the bearing plate 206 are sequentially connected with each other, the outer surface of the first needle pricking pressing plate 205 is provided with a first needle row area 207, the first needle row area 207 is a fan shape, a plurality of first needle pricking holes are arranged on the first needle row area 207, the first needle pricking pressing plate 205 is provided with a pricking pressing groove 208, the outer contour of the pricking pressing groove 208 is the same as the outer contour of the first needle row area 207, the first needle pricking holes are used for mounting first puncture needles, the bottom end of the first puncture needle passes through the first needle pricking hole and abuts against the pricking pressing groove 208, the sharp end of the first puncture needle is exposed on the surface of the first needle row area 207. The first needle row assembly in the first needle pricking action module 203 in the first needle pricking unit 2 is an integral needle pricking structure, the first needle row area 207 arranged on the first needle row plate 204 is a fan shape, the arc surface needle pricking area of the bottom of the crucible pot can be covered, the completeness of needle pricking is ensured, meanwhile, the integral needle pricking structure of the first needle pricking unit 2 can ensure that the needle pricking effect is more uniform, and the needle pricking effect is better; optionally, one side of the first needle row plate 204 close to the first needle pricking pressing plate 205 is provided with a matching boss, the shape of the matching boss, the shape of the pricking pressing groove 208 and the shape of the first needle row area 207 are the same, and the first needle row plate 204 and the first needle pricking pressing plate 205 are matched and connected to be embeddedly connected through the matching boss and the pricking pressing groove 208.

[0055] In the embodiment, please refer to Figures 5-10 The first needle row assembly further comprises a needle row quick disassembly assembly, the needle row quick disassembly assembly comprises a roll pin 209 and a positioning fixed plate 210, one end of the positioning fixed plate 210 is connected with the bearing plate 206, the positioning fixed plate 210 is provided with a first matching hole 211, the top of the first needle row plate 204 is provided with a second matching hole, the first matching hole 211 and the second matching hole are both through holes, the roll pin 209 passes through the first matching hole 211 and the second matching hole and is used for dismounting and connecting the first needle row plate 204 and the bearing plate 206. Optionally, the positioning fixed plate 210 and the bearing plate 206 can be matched and connected through a threaded connecting piece, and the positioning fixed plate 210 and the needle row plate are detachably connected through the roll pin 209, the spring ball characteristics of the roll pin 209 can realize quick dismounting and mounting, the first needle row plate 204 can be quickly and conveniently replaced, and adjustment is convenient and effective.

[0056] In the embodiment, please refer to Figures 5-10The first needle-punching driving assembly comprises a first cylinder 212, a cylinder mounting plate 213 and a first guide group. The first cylinder 212 is mounted on the cylinder mounting plate 213, the telescopic part of the first cylinder 212 penetrates through the cylinder mounting plate 213 and is connected with the bearing plate 206, the bearing plate 206 is provided with a clamping block 214, the end of the telescopic part of the first cylinder 212 is provided with a ball head pushing block 215, the ball head pushing block 215 is in clamping connection with the clamping block 214, the first guide group comprises a plurality of first guide columns 216 and a plurality of first bushings 217, the first guide columns 216 are slidably mounted on the cylinder mounting plate 213 through the first bushings 217, one end of the first guide column 216 is connected with the bearing plate 206, and the other end of the first guide column 216 is provided with a limiting block 218. The first needle-punching action module 203 in the first needle-punching unit 2 realizes the needle-punching action through the driving action of the first cylinder 212, which is more convenient and efficient than the traditional manual operation mode. The end of the first guide column 216 is provided with the limiting block 218, when the needle-punching depth reaches a set value, the limiting block 218 is in contact with the first bushing 217 to limit the depth range of the needle-punching.

[0057] In the embodiment, please refer to Figures 5-10, the first needle position adjustment module 202 includes a first adjustment group, a second adjustment group and a third adjustment group and a first needle installation bottom plate, the first adjustment group includes a first X direction adjustment plate 219 and a first X direction fixed plate 220; the second adjustment group includes a first Z direction rotating seat 221 and a first Z direction adjustment plate 222; the third adjustment group includes a first Y direction rotating seat 223; the first X direction adjustment plate 219 is installed on the bottom of the cylinder installation plate 213, the first X direction fixed plate 220 is provided with a first X direction sliding groove, the first X direction adjustment plate 219 and the first X direction sliding groove are in sliding fit, the first X direction adjustment plate 219 is provided with a first X direction waist type hole 224, the first X direction fixed plate 220 is provided with a first X direction locking hole, the first X direction adjustment plate 219 and the first X direction fixed plate 220 are provided with the first X direction locking piece, the first X direction locking piece is in fit with the first X direction waist type hole 224, the first X direction locking hole in turn; the first Z direction rotating seat 221 is rotatably installed on the first Y direction rotating seat 223, the top of the first Z direction rotating seat 221 is connected with the bottom of the first X direction fixed plate 220; the first needle installation bottom plate is provided with a first Y direction installation support 229, the first Y direction rotating seat 223 is rotatably installed on the first Y direction installation support 229; the first needle support 201 is provided with a first Z direction fixed plate 225, the second adjustment group further includes a first Z direction adjusting screw 226 and a first Z direction threaded fixed block 227, the first Z direction threaded fixed block 227 is installed on the first Z direction fixed plate 225, the first Z direction adjusting screw 226 and the first Z direction threaded fixed block 227 are in threaded fit, the top end of the first Z direction adjusting screw 226 is provided with a first Z direction adjusting handle 228, and the bottom end of the first Z direction adjusting screw 226 is connected with the first Z direction adjustment plate 222. The first X direction, the first Y direction and the first Z direction involved in the first adjustment group, the second adjustment group and the third adjustment group are perpendicular to each other in the spatial position, wherein the direction of the first X direction is parallel to the sliding direction in the first X direction adjustment plate 219, the first locking piece is in fit with the first X direction waist type hole 224 and the first X direction locking hole in turn to realize position locking after the first X direction adjustment plate 219 is adjusted along the first X direction in the first adjustment group, the first Z direction rotating seat 221 can realize rotating adjustment around the first Z direction in the second adjustment group, the first Z direction fixed plate 225 and the first Z direction fixed plate 225 on the first needle support 201 are in up-down lifting fit to realize displacement adjustment along the first Z direction, and the first Z direction fixed plate 225 and the first Z direction adjustment plate 222 can be fixedly connected through bolts. The first Y direction rotating seat 223 is rotatably installed on the first Y direction installation support 229 in the third adjustment group to realize rotating adjustment along the first Y direction.Therefore, by setting the first needling position adjusting module 202, the needling position adjustment can be more convenient, the needle can be effectively ensured to be perpendicular to the yarn surface for needling, the needling preform can obtain good needling quality, and the mechanical properties of the preform can be effectively ensured.

[0058] In the embodiment, please refer to Figures 11-15 The second needling unit 3 includes a second needling support 301, a plurality of small needling modules, and a second needling position adjusting module 303. The plurality of small needling modules and the second needling position adjusting module 303 are both installed on the second needling support 301. The second needling position adjusting module 303 is used to adjust the needling position and angle of the small needling modules. The second needling unit 3 includes a plurality of small needling modules. The second needling unit 3 is different from the first needling unit 2 in that the assembly for needling is a segmented multi-group needling structure mode. The position and angle of each small needling module can be arranged according to different crucible product structure shapes. The needling requirements of different products can be quickly adjusted, and the process applicability is stronger.

[0059] In the embodiment, please refer to Figures 11-15The second needle position adjustment module 303 comprises a second Z-direction displacement adjustment device and an elevation angle adjustment device. The second Z-direction displacement adjustment device comprises a second Z-direction lifting plate 304, a second Z-direction fixed plate 305, a screw lifting device 306, and a second guide group. The second Z-direction fixed plate 305 is installed on the second needle support 301. The main body of the screw lifting device 306 is installed on the second Z-direction fixed plate 305. The screw lifting device 306 drives the second Z-direction lifting plate 304 to move up and down. The second guide group comprises a plurality of lifting guide columns 307. One end of the lifting guide column 307 is fixed to the bottom of the second Z-direction lifting plate 304. The other end of the lifting guide column 307 passes through and is slidingly installed on the second Z-direction fixed plate 305. The elevation angle adjustment device comprises an adjustment support installation plate 308 and an adjustment rotating assembly. Each small needle module is arranged on the surface of the adjustment support installation plate 308 in sequence. The arrangement direction of each small needle module is arc-shaped. Both ends of the adjustment support installation plate 308 are provided with rotating adjustment plates 309. Both sides of the second Z-direction lifting plate 304 are provided with fixed adjustment plates 310. The adjustment rotating assembly comprises an adjustment rotating shaft 311 and an adjustment locking piece. The rotating adjustment plate 309 and the fixed adjustment plate 310 are rotationally connected through the adjustment rotating shaft 311. The rotating adjustment plate 309 is provided with an arc-shaped waist hole 312. The fixed adjustment plate 310 is provided with a fixed hole. The adjustment locking piece is matched with the arc-shaped waist hole 312 and the fixed hole. The adjustment direction of the second Z-direction is vertical and opposite to the surface of the second Z-direction fixed plate 305. Optionally, the screw lifting device 306 can be electrically or manually driven to adjust the second Z-direction displacement. In this embodiment, the arrangement direction of each small needle module 302 is arc-shaped to better adapt to the arc surface structure of the bottom of the crucible 0. The position can also be adjusted according to different needle conditions. During the angle adjustment process, the rotating adjustment plate 309 and the fixed adjustment plate 310 are rotationally connected through the rotating shaft to adjust the angle. After the adjustment is completed, the adjustment locking piece is matched with the arc-shaped waist hole 312 and the fixed hole to lock the position.

[0060] In this embodiment, please refer to Figures 11-15The small needle driving assembly comprises a second cylinder 313 and a small needle guide group. The small needle array assembly comprises a small needle fixing plate 314, a small needle connecting plate 315 and a small needle array piece 316. The small needle array piece 316 is used for placing and installing small acupuncture needles. The small needle array piece 316 is installed on the small needle fixing plate 314 through the small needle connecting plate 315. The second cylinder 313 is installed on a sheet metal connecting piece 325. The extension end of the second cylinder 313 is connected with the small needle fixing plate 314. The second cylinder 313 drives the small needle array assembly to move. The small needle guide group comprises a small needle guide column 317 and a small needle bushing 318. One end of the small needle guide column 317 is fixed on the small needle fixing plate 314. The other end of the small needle guide column 317 is slidably installed on the sheet metal connecting piece 325 through the small needle bushing 318. The small needle position adjusting assembly comprises a bottom adjusting handle 319, a bottom adjusting screw 320, a bottom fixing block 321 and a bottom mounting block 322. The bottom fixing block 321 is fixed on the adjusting support mounting plate 308. The bottom adjusting screw 320 penetrates and threadedly rotates with the bottom fixing block 321. One end of the bottom adjusting screw 320 is connected with the bottom adjusting handle 319. The other end of the bottom adjusting screw 320 is connected with the bottom mounting block 322. An adjusting locking piece 323 is arranged between the bottom mounting block 322 and the adjusting support mounting plate 308. A strip-shaped hole 324 is arranged on the bottom mounting block 322. The length direction of the strip-shaped hole 324 is parallel to the length direction of the bottom adjusting screw 320. An adjusting matching hole is arranged on the adjusting support mounting plate 308. The adjusting locking piece 323 cooperates with the strip-shaped hole 324 and the adjusting matching hole. The small needle array assembly is driven by the second cylinder 313 to realize the acupuncture action. Each small needle acupuncture module is independently driven to perform the acupuncture operation. In the small needle position adjusting assembly, the bottom adjusting screw 320 is rotated, and then the sheet metal connecting piece 325 drives the small needle driving assembly and the small needle array assembly as a whole to realize the depth range adjustment of the acupuncture direction, so that different acupuncture depths are obtained. The acupuncture depth adjustment is convenient.

[0061] In summary, the present application is provided with the first needle unit and the second needle unit and is arranged at both ends of the crucible piece to carry out the needling operation, and the control unit is further arranged in the present application and is electrically connected with the crucible mounting unit, the first needle unit and the second needle unit. In the whole operation process, the automatic needling movement mode can be realized. Compared with the traditional manual operation mode, the force of each needling can be uniform, the needling depth and the needling density can be kept uniform, the uncertainty depending on the manual operation experience can be avoided, the product quality can be ensured, the labor intensity of the manual operation can be reduced, and the needling work efficiency is more efficient. Therefore, the present application effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0062] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and category of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A needling device for carbon-carbon crucibles, characterized in that, The utility model relates to a double-end needle pricking device for crucible, which comprises a crucible mounting unit, a first needle pricking unit, a second needle pricking unit and a control unit. The crucible mounting unit comprises a crucible rotation module, a crucible mounting frame and a crucible mounting shaft. The first needle pricking unit and the second needle pricking unit are arranged at the two ends of the crucible along the length direction. The control unit is electrically connected with the crucible mounting unit, the first needle pricking unit and the second needle pricking unit. The first needle pricking unit comprises a first needle pricking support, a first needle pricking position adjustment module and a first needle pricking action module. The first needle pricking position adjustment module and the first needle pricking action module are mounted on the first needle pricking support. The first needle pricking action module comprises a first needle pricking drive assembly and a first needle row assembly. The first needle row assembly comprises a first needle row plate, a first needle pricking pressure plate and a thrust bearing plate. The second needle pricking unit comprises a second needle pricking support, a plurality of small needle pricking modules and a second needle pricking position adjustment module. The second needle pricking position adjustment module is used for adjusting the needle pricking position and angle of the small needle pricking modules. The second needle pricking position adjustment module comprises a second Z-direction displacement adjustment device and an elevation angle adjustment device. ​ The second Z-direction displacement adjusting device comprises a second Z-direction lifting plate, a second Z-direction fixed plate, a screw lifting device and a second guide group, the second Z-direction fixed plate is installed on the second needling support, the main body of the screw lifting device is installed on the second Z-direction fixed plate, the top pushing end of the screw lifting device drives the second Z-direction lifting plate to move up and down, and the second guide group comprises a plurality of lifting guide columns, one end of the lifting guide column is fixed at the bottom of the second Z-direction lifting plate, and the other end of the lifting guide column penetrates through and is slidably installed on the second Z-direction fixed plate; The elevation angle adjusting device comprises an adjusting support installation plate and an adjusting rotation assembly, each small needling module is sequentially arranged and installed on the surface of the adjusting support installation plate, the arrangement direction of each small needling module is arc-shaped, both ends of the adjusting support installation plate are provided with rotating adjusting plates, both sides of the second Z-direction lifting plate are provided with fixed adjusting plates, the adjusting rotation assembly comprises an adjusting rotation shaft and an adjusting locking piece, the rotating adjusting plates and the fixed adjusting plates are rotationally connected through the adjusting rotation shaft, the rotating adjusting plate is provided with an arc-shaped waist hole, the fixed adjusting plate is provided with a fixed hole, and the adjusting locking piece is matched with the arc-shaped waist hole and the fixed hole; The small needling module comprises a small needle driving assembly, a small needle needle row assembly and a small needle position adjusting assembly; The small needle driving assembly comprises a second air cylinder and a small needle guide group, the small needle needle row assembly comprises a small needle fixed plate, a small needle connecting plate and a small needle row piece, the small needle row piece is used for placing and installing small needles, the small needle row piece is installed on the small needle fixed plate through the small needle connecting plate, the second air cylinder is installed on the metal connecting piece, the telescopic end of the second air cylinder is connected with the small needle fixed plate, and the second air cylinder drives the small needle row assembly to move by needleling; the small needle guide group comprises a small needle guide column and a small needle bushing, one end of the small needle guide column is fixed on the small needle fixed plate, and the other end of the small needle guide column is slidably installed on the metal connecting piece through the small needle bushing; The small needle position adjusting assembly comprises a bottom adjusting handle, a bottom adjusting screw, a bottom fixed block and a bottom mounting block, the bottom fixed block is fixed on the adjusting support installation plate, the bottom adjusting screw penetrates through and is threadedly connected with the bottom fixed block, one end of the bottom adjusting screw is connected with the bottom adjusting handle, and the other end of the bottom adjusting screw is connected with the bottom mounting block; the bottom mounting block is provided with a strip-shaped hole, the length direction of the strip-shaped hole is parallel to the length direction of the bottom adjusting screw, the adjusting support installation plate is provided with an adjusting matching hole, and the adjusting locking piece is matched with the strip-shaped hole and the adjusting matching hole.

2. The needling device for the carbon-carbon crucible according to claim 1, characterized in that: The crucible installation unit further comprises a crucible plane rotation module, and the crucible plane rotation module comprises a crucible plane rotation driving assembly and a crucible plane rotation transmission assembly. The crucible horizontal rotation driving assembly comprises a crucible horizontal rotation driving box, a crucible horizontal rotation driving motor, a crucible horizontal rotation driving shaft and a crucible horizontal rotation power output shaft, the crucible horizontal rotation driving motor is arranged in the interior of the crucible horizontal rotation driving box, the crucible horizontal rotation driving motor is connected with the crucible horizontal rotation driving shaft, and the crucible horizontal rotation driving shaft is connected with the crucible horizontal rotation power output shaft through synchronous belt transmission. The crucible horizontal rotation transmission assembly comprises a first crucible horizontal rotation transmission rod, a second crucible horizontal rotation transmission rod and a crucible horizontal rotation top fixing rod, the rod wall of the first crucible horizontal rotation transmission rod is connected with the end of the crucible horizontal rotation power output shaft, the end of the first crucible horizontal rotation transmission rod is connected with the crucible mounting frame, one end of the second crucible horizontal rotation transmission rod is rotatably arranged on the side wall of the crucible horizontal rotation top fixing rod, the other end of the second crucible horizontal rotation transmission rod is connected with the crucible mounting frame, the crucible horizontal rotation power output shaft and the crucible horizontal rotation top fixing rod are coaxial in spatial position, and the crucible horizontal plane rotation module drives the crucible rotation module and the crucible to adjust rotation in the horizontal plane direction.

3. The needle punching device for the carbon-carbon crucible according to claim 1, characterized in that: The first needle row assembly further comprises a needle row quick disassembly assembly, the needle row quick disassembly assembly comprises a roll pin and a positioning fixing plate, one end of the positioning fixing plate is connected with the bearing plate, the positioning fixing plate is provided with a first matching hole, the top of the first needle row plate is provided with a second matching hole, the first matching hole and the second matching hole are through holes, and the roll pin passes through the first matching hole and the second matching hole and is used for disassembling and connecting the first needle row plate and the bearing plate.

4. The needle punching device for the carbon-carbon crucible according to claim 1, characterized in that: The first needle punching driving assembly comprises a first cylinder, a cylinder mounting plate and a first guide group; The first cylinder is mounted on the cylinder mounting plate, the telescopic part of the first cylinder passes through the cylinder mounting plate and is connected with the bearing plate, the bearing plate is provided with a clamping block, the end of the telescopic part of the first cylinder is provided with a ball head push block, the ball head push block is clamped and matched with the clamping block, the first guide group comprises a plurality of first guide columns and a plurality of first bushings, the first guide columns are slidably mounted on the cylinder mounting plate through the first bushings, one end of the first guide column is connected with the bearing plate, and the other end of the first guide column is provided with a limiting block.

5. The needle punching device for the carbon-carbon crucible according to claim 4, characterized in that: The first needle position adjustment module comprises a first adjustment group, a second adjustment group, a third adjustment group and a first needle installation bottom plate, the first adjustment group comprises a first X-direction adjustment plate and a first X-direction fixed plate, the second adjustment group comprises a first Z-direction rotating seat and a first Z-direction adjustment plate, the third adjustment group comprises a first Y-direction rotating seat, the first X-direction adjustment plate is installed at the bottom of the cylinder installation plate, the first X-direction fixed plate is provided with a first X-direction sliding groove, the first X-direction adjustment plate and the first X-direction sliding groove are in sliding fit, the first X-direction adjustment plate is provided with a first X-direction waist-shaped hole, the first X-direction fixed plate is provided with a first X-direction locking hole, the first X-direction adjustment plate and the first X-direction fixed plate are provided with the first X-direction locking piece, the first X-direction locking piece is sequentially matched with the first X-direction waist-shaped hole and the first X-direction locking hole, the first Z-direction rotating seat is rotatably installed on the first Y-direction rotating seat, the top of the first Z-direction rotating seat is connected with the bottom of the first X-direction fixed plate, the first needle installation bottom plate is provided with a first Y-direction installation support, the first Y-direction rotating seat is rotatably installed on the first Y-direction installation support, the first needle support is provided with a first Z-direction fixed plate, the second adjustment group further comprises a first Z-direction adjustment screw and a first Z-direction threaded fixed block, the first Z-direction threaded fixed block is installed on the first Z-direction fixed plate, the first Z-direction adjustment screw and the first Z-direction threaded fixed block are in threaded fit, the top end of the first Z-direction adjustment screw is provided with a first Z-direction adjustment handle, and the bottom end of the first Z-direction adjustment screw is connected with the first Z-direction adjustment plate.

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