Nozzle internal support clamping mechanism and nozzle processing equipment

Abstract

The present application provides a nozzle internal support clamping mechanism and nozzle processing equipment. The above-mentioned nozzle internal support clamping mechanism includes a mounting seat, a telescopic cylinder, a positioning seat, a positioning pin and a clamping block. The lower end of the cylinder body of the telescopic cylinder is mounted on the mounting seat, and a conical surface is formed on the outer side of the piston rod of the telescopic cylinder; the positioning seat is mounted on the upper end of the cylinder body of the telescopic cylinder, and the positioning seat is formed with an avoidance hole, and the piston rod is inserted into the avoidance hole; the first end of the positioning pin is located in the avoidance hole and is fixedly connected to the positioning seat, and the positioning pin is formed with a movable through hole along the extension direction, and the piston rod is movably inserted into the movable through hole, and the second end of the positioning pin is formed with a plurality of sliding holes arranged at intervals along the circumferential direction, and each sliding hole is connected to the movable through hole; a plurality of clamping blocks are slidably arranged in the plurality of sliding holes in a one-to-one correspondence, and a slope is formed on one side of each clamping block adjacent to the movable through hole, and the slope slides against the conical surface. In this way, the surface processing efficiency of the nozzle is improved, and the surface quality of the nozzle is improved at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of nozzle processing equipment, and in particular to a nozzle inner support clamping mechanism and nozzle processing equipment. Background Art

[0002] The nozzle is a hollow cylindrical structure used to spray liquid. When manufacturing the nozzle, the inner hole of the nozzle is first processed, and then the surface of the nozzle is processed by clamping the surface of the nozzle.

[0003] In the conventional technology, when machining the nozzle surface, the first end of the nozzle is first clamped by a clamp, and then the second end of the nozzle is machined by a tool, and then the machine is stopped and the nozzle is removed from the clamp, and then the second end of the nozzle is clamped on the clamp, and then the first end of the nozzle is machined by a tool, thus completing the surface machining of the nozzle.

[0004] However, since the nozzle surface needs to be stopped to adjust the position of the nozzle when processing the nozzle surface, the surface processing efficiency of the nozzle is low. Moreover, when processing the nozzle for the second time, the fixture is clamped on the surface formed by the first processing, so that the fixture will form a clamping mark on the surface of the nozzle, thereby making the surface quality of the nozzle poor. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a nozzle internal support clamping mechanism and nozzle processing equipment that improve the surface processing efficiency of the nozzle and simultaneously improve the surface quality of the nozzle.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A nozzle inner support clamping mechanism, comprising:

[0008] Mounting seat;

[0009] A telescopic cylinder, wherein the lower end of the cylinder body of the telescopic cylinder is mounted on the mounting seat, and a conical surface is formed on the outer side of the piston rod of the telescopic cylinder, the conical surface is located at the end of the piston rod away from the cylinder body, and the conical surface is arranged toward the upper side of the piston rod;

[0010] A positioning seat, the positioning seat is installed at the upper end of the cylinder body of the telescopic cylinder, the positioning seat is formed with an avoidance hole, and the piston rod is passed through the avoidance hole;

[0011] A positioning pin, wherein the first end of the positioning pin is located in the avoidance hole and fixedly connected to the positioning seat, the positioning pin is formed with a movable through hole along the extension direction, the piston rod is movably inserted into the movable through hole, and the second end of the positioning pin is formed with a plurality of sliding holes arranged at intervals along the circumferential direction, each of the sliding holes is connected to the movable through hole; and

[0012] A clamping block, wherein the number of the clamping blocks is multiple, and the multiple clamping blocks are slidably arranged in the multiple sliding holes in a one-to-one correspondence, and each clamping block is formed with an inclined surface on one side adjacent to the movable through hole, and the inclined surface slides and abuts against the conical surface, so that the piston rod pushes each clamping block to retract or extend in the corresponding sliding hole when the piston rod retracts or extends.

[0013] In one embodiment, the nozzle internal support clamping mechanism also includes a plurality of limit blocks, and the positioning pin is also formed with a plurality of fixing holes, and the plurality of fixing holes are connected to the plurality of sliding holes one by one, and the plurality of limit blocks are fixedly connected to the plurality of fixing holes one by one, and a limit groove is formed on a side of each limit block adjacent to the corresponding clamping block, and a limit rod is protruded on a side of each clamping block adjacent to the corresponding limit block, and the limit rod of each clamping block is limited in the limit groove of the corresponding clamping block to prevent each clamping block from detaching from the positioning pin.

[0014] In one embodiment, each of the limit blocks is embedded in the corresponding fixing hole.

[0015] In one embodiment, each of the pressing blocks and the positioning pin is clearance-fitted.

[0016] In one embodiment, each of the fixing holes protrudes from two opposite sides of the corresponding sliding hole.

[0017] In one embodiment, each of the fixing holes is a rectangular hole.

[0018] In one embodiment, each of the fixing holes extends along the circumference of the positioning pin.

[0019] In one embodiment, each of the sliding holes is a rectangular hole.

[0020] In one embodiment, each of the sliding holes extends along the axial direction of the positioning pin.

[0021] A nozzle processing device comprises the nozzle internal support clamping mechanism described in any one of the above embodiments.

[0022] Compared with the prior art, the present invention has at least the following advantages:

[0023] After the nozzle is sleeved on the positioning pin, the telescopic cylinder is actuated to raise the piston rod, so that the conical surface of the piston rod pushes the multiple clamping blocks to slide outward, and then the multiple clamping blocks clamp the inner wall of the nozzle, thus achieving the clamping of the nozzle by the nozzle internal support clamping mechanism. Since the clamping block does not need to contact the surface of the nozzle, the clamping block does not block the surface of the nozzle during processing, so that the nozzle does not need to change direction during processing, thereby improving the processing efficiency of the nozzle. Moreover, since the clamping part of the nozzle internal support clamping mechanism, i.e., the clamping block, acts on the inside of the nozzle, the problem of the clamping block forming clamping marks on the surface of the nozzle is avoided, thereby improving the surface quality of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of the structure of the nozzle inner support clamping mechanism of one embodiment when clamping the nozzle;

[0026] Figure 2 for Figure 1 A schematic structural diagram of the nozzle inner support clamping mechanism shown;

[0027] Figure 3 for Figure 2 A cross-sectional view of the nozzle inner support clamping mechanism along line AA is shown;

[0028] Figure 4 for Figure 3 An enlarged schematic diagram of the nozzle inner support clamping mechanism at position B is shown;

[0029] Figure 5 for Figure 2 An enlarged schematic diagram of the nozzle internal support clamping mechanism at position C is shown. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] The present application provides a nozzle internal support clamping mechanism, including a mounting seat, a telescopic cylinder, a positioning seat, a positioning pin and a clamping block, the lower end of the cylinder body of the telescopic cylinder is mounted on the mounting seat, a conical surface is formed on the outer side of the piston rod of the telescopic cylinder, the conical surface is located at the end of the piston rod away from the cylinder body, and the conical surface is arranged toward the upper part of the piston rod; the positioning seat is mounted on the upper end of the cylinder body of the telescopic cylinder, the positioning seat is formed with an avoidance hole, and the piston rod is penetrated through the avoidance hole; the first end of the positioning pin is located in the avoidance hole and is fixedly connected to the positioning seat, the positioning pin is formed with a movable through hole along the extension direction, the piston rod is movably penetrated through the movable through hole, and the second end of the positioning pin is formed with a plurality of sliding holes arranged at intervals along the circumferential direction, and each sliding hole is connected to the movable through hole; the number of the clamping blocks is multiple, and the plurality of clamping blocks are slidably arranged in the plurality of sliding holes in a one-to-one correspondence, and a slope is formed on one side of each clamping block adjacent to the movable through hole, and the slope slides and abuts against the tapered surface, so that the piston rod pushes each clamping block to be retracted and retracted in the corresponding sliding hole when retracting and retracting.

[0034] The present application also provides a nozzle processing device, including a cutting mechanism and the above-mentioned nozzle inner support clamping mechanism, the cutting mechanism is arranged adjacent to the mounting seat of the nozzle inner support clamping mechanism, and the cutting mechanism is used to cut the nozzle.

[0035] After the nozzle is sleeved on the positioning pin, the telescopic cylinder is actuated to raise the piston rod, so that the conical surface of the piston rod pushes the multiple clamping blocks to slide outward, thereby causing the multiple clamping blocks to clamp the inner wall of the nozzle, thereby achieving the clamping of the nozzle by the nozzle internal support clamping mechanism. Since the clamping block does not need to contact the surface of the nozzle, the clamping block does not block the surface of the nozzle during processing, so that the nozzle does not need to change direction during processing, thereby improving the processing efficiency of the nozzle. Moreover, since the clamping part of the nozzle internal support clamping mechanism, i.e., the clamping block, acts on the inside of the nozzle, the problem of the clamping block forming clamping marks on the surface of the nozzle is avoided, thereby improving the surface quality of the nozzle.

[0036] In order to better understand the technical solutions and beneficial effects of the present application, the present application is further described in detail below in conjunction with specific embodiments:

[0037] like Figures 1 to 4 As shown, the nozzle internal support clamping mechanism 10 of one embodiment includes a mounting seat 100, a telescopic cylinder 200, a positioning seat 300, a positioning pin 400 and a clamping block 500. The lower end of the cylinder body 210 of the telescopic cylinder 200 is mounted on the mounting seat 100. The outer side of the piston rod 220 of the telescopic cylinder 200 is formed with a tapered surface 221. The tapered surface 221 is located at the end of the piston rod 220 away from the cylinder body 210. The tapered surface 221 is arranged toward the upper side of the piston rod 220, that is, the diameter of the end of the piston rod 220 provided with the tapered surface 221 gradually decreases in the direction away from the cylinder body 210. The positioning seat 300 is mounted on the upper end of the cylinder body 210 of the telescopic cylinder 200. The positioning seat 300 is formed with an avoidance hole 301. The piston rod 220 is penetrated through the avoidance hole 301 to prevent the positioning seat 300 from hindering the extension and retraction of the piston rod 220. The first end of the positioning pin 400 is located in the avoidance hole 301 and fixedly connected to the positioning seat 300, and the positioning pin 400 is perpendicular to the upper side of the positioning seat 300. The positioning pin 400 is formed with a movable through hole 401 along the extension direction, and the movable through hole 401 penetrates the positioning pin 400. The piston rod 220 is movably arranged in the movable through hole 401. The second end of the positioning pin 400 is formed with a plurality of sliding holes 402 arranged at intervals along the circumferential direction, and each sliding hole 402 is connected to the movable through hole 401. There are multiple clamping blocks 500, and the multiple clamping blocks 500 are slidably arranged in the multiple sliding holes 402 in a one-to-one correspondence. A slope 501 is formed on one side of each clamping block 500 adjacent to the movable through hole 401, and the slope 501 slides against the conical surface 221, so that the piston rod 220 pushes each clamping block 500 to extend and retract in the corresponding sliding hole 402 when extending and retracting.

[0038] like Figures 1 to 4As shown, in this embodiment, the avoidance hole 301 is a circular hole, the first end of the positioning pin 400 is located in the avoidance hole 301 and is fixedly sleeved with the positioning seat 300, and the positioning pin 400 and the positioning seat 300 are interference fit. When clamping the nozzle 20, the nozzle 20 is sleeved on the positioning pin 400, and then the piston rod 220 of the telescopic cylinder 200 rises, so that the conical surface 221 of the piston rod 220 slides against the inclined surface 501 of the multiple clamping blocks 500, so as to push the multiple clamping blocks 500 to slide outward from the positioning pin 400 and abut against the inner wall of the nozzle 20, so that the multiple clamping blocks 500 clamp the nozzle 20, and then the outer surface of the nozzle 20 is processed. After the processing of the outer surface of the nozzle 20 is completed, the piston rod 220 descends, so that the conical surface 221 of the piston rod 220 releases the clamping block 500, and then the clamping block 500 releases the nozzle 20, and then the nozzle 20 is taken out.

[0039] After the nozzle 20 is sleeved on the positioning pin 400, the telescopic cylinder 200 is actuated to raise the piston rod 220, so that the conical surface 221 of the piston rod 220 pushes the multiple clamping blocks 500 to slide outward, thereby making the multiple clamping blocks 500 clamp the inner wall of the nozzle 20, thus achieving the clamping of the nozzle 20 by the nozzle internal support clamping mechanism 10. Since the clamping block 500 does not need to contact the surface of the nozzle 20, the clamping block 500 does not block the surface of the nozzle 20 during processing, so that the nozzle 20 does not need to change direction during processing, thereby improving the processing efficiency of the nozzle 20. Moreover, since the clamping part of the nozzle internal support clamping mechanism 10, i.e., the clamping block 500, acts on the inside of the nozzle 20, the problem of the clamping block 500 forming a clamping mark on the surface of the nozzle 20 is avoided, thereby improving the surface quality of the nozzle 20.

[0040] like Figure 4 and Figure 5As shown, in one embodiment, the nozzle internal support clamping mechanism 10 also includes a plurality of limit blocks 600, and the positioning pin 400 is also formed with a plurality of fixing holes 403, and the plurality of fixing holes 403 are connected one-to-one with the plurality of sliding holes 402, and the plurality of limit blocks 600 are fixedly connected one-to-one in the plurality of fixing holes 403, and a limit groove 601 is formed on one side of each limit block 600 adjacent to the corresponding clamping block 500, and a limit rod 510 is protruded on one side of each clamping block 500 adjacent to the corresponding limit block 600, and the limit rod 510 of each clamping block 500 is limited in the limit groove 601 of the corresponding clamping block 500 to prevent each clamping block 500 from being separated from the positioning pin 400. In this embodiment, when the piston rod 220 pushes each clamping block 500 to slide outward to a certain distance, the limiting rod 510 of each clamping block 500 will abut against the groove wall of the limiting groove 601 of the corresponding limiting block 600 to prevent each clamping block 500 from sliding out of the sliding hole 402, that is, to prevent each clamping block 500 from detaching from the positioning pin 400, so as to ensure that each clamping block 500 can continue to clamp the nozzle 20.

[0041] like Figure 4 and Figure 5 As shown, in one embodiment, each limiting block 600 is embedded in the corresponding fixing hole 403 to improve the position stability of each limiting block 600, thereby ensuring the anti-dropping effect of each limiting block 600 on the corresponding clamping block 500.

[0042] like Figure 5 As shown, in one embodiment, each pressing block 500 is clearance-matched with the positioning pin 400 to improve the sliding smoothness of each pressing block 500 .

[0043] like Figure 5 As shown, in one of the embodiments, each fixing hole 403 protrudes from the opposite sides of the corresponding sliding hole 402, so that the contact area between each limit block 600 and the positioning pin 400 is larger, thereby improving the connection strength between each limit block 600 and the positioning pin 400, and thereby improving the anti-slip effect of each limit block 600 on the corresponding clamping block 500.

[0044] like Figure 5 As shown, in one embodiment, each fixing hole 403 is a rectangular hole.

[0045] like Figure 5 As shown, in one embodiment, each fixing hole 403 extends along the circumference of the positioning pin 400 to facilitate processing of the plurality of fixing holes 403 , thereby improving the processing efficiency of the positioning pin 400 .

[0046] like Figure 5 As shown, in one embodiment, each sliding hole 402 is a rectangular hole, and each pressing block 500 is a rectangular hole. In one embodiment, each sliding hole extends along the axial direction of the positioning pin 400.

[0047] In order to improve the sliding smoothness of each clamping block 500, in another embodiment, each clamping block 500 is respectively provided with a guide protrusion 520 on two opposite sides, and the extension direction of each guide protrusion 520 is consistent with the sliding direction of the corresponding clamping block 500. The two side walls opposite to each sliding hole 402 are respectively formed with a guide groove 404. The two guide protrusions 520 of each clamping block 500 are respectively slidably arranged in the two guide grooves 404 corresponding to the corresponding sliding hole 402 to improve the sliding smoothness of each clamping block 500, avoid the problem of being unable to clamp the nozzle 20 due to the clamping block 500 being stuck, and improve the working stability of the nozzle internal support clamping mechanism 10.

[0048] like Figure 4 As shown, in one embodiment, each clamping block 500 includes an external pressure portion 500a and an elastic portion 500b, the external pressure portion 500a of each clamping block 500 is slidably disposed in the corresponding sliding hole 402, the inclined surface 501 of each clamping block 500 is formed on the side of the corresponding external pressure portion 500a adjacent to the movable through hole 401, the elastic portion 500b of each clamping block 500 is connected to the side of the corresponding external pressure portion 500a away from the movable through hole 401, and the elastic portion 500b of each clamping block 500 is used to abut against the inner wall of the nozzle 20 to clamp the nozzle 20. In this embodiment, since the elastic portion 500b of each clamping block 500 abuts against the inner wall of the nozzle 20, each clamping block 500 is elastically connected to the nozzle 20, thereby preventing each clamping block 500 from embossing the inner wall of the nozzle 20, thereby improving the surface quality of the inner wall of the nozzle 20, and simultaneously preventing each clamping block 500 from causing raised burrs to form on the inner wall of the nozzle 20, thereby improving the convenience of installing parts inside the nozzle 20.

[0049] Furthermore, the elastic part 500b of each pressing block 500 is a silicone structure, so that the elastic part 500b of each pressing block 500 has elasticity. Of course, in other embodiments, the elastic part 500b of each pressing block 500 can also be a rubber structure or other existing elastic structures.

[0050] In one embodiment, the elastic part 500b of each pressing block 500 is formed with a plurality of deformation holes arranged at intervals. In this embodiment, when the elastic part 500b of each pressing block 500 abuts against the inner wall of the nozzle 20, it will be compressed. Since the elastic part 500b of each pressing block 500 has a plurality of deformation holes arranged at intervals, the elastic part 500b of each pressing block 500 is more flexible, thereby preventing the pressing block 500 from damaging the inner wall of the nozzle 20.

[0051] A nozzle processing device comprises the nozzle inner support clamping mechanism 10 described in any of the above embodiments. Figures 1 to 4As shown, in one embodiment, the nozzle internal support clamping mechanism 10 includes a mounting seat 100, a telescopic cylinder 200, a positioning seat 300, a positioning pin 400 and a clamping block 500. The lower end of the cylinder body 210 of the telescopic cylinder 200 is mounted on the mounting seat 100. A tapered surface 221 is formed on the outer side of the piston rod 220 of the telescopic cylinder 200. The tapered surface 221 is located at the end of the piston rod 220 away from the cylinder body 210. The tapered surface 221 is arranged toward the top of the piston rod 220, that is, the diameter of the end of the piston rod 220 provided with the tapered surface 221 gradually decreases in the direction away from the cylinder body 210. The positioning seat 300 is mounted on the upper end of the cylinder body 210 of the telescopic cylinder 200. The positioning seat 300 is formed with an avoidance hole 301. The piston rod 220 is penetrated through the avoidance hole 301 to prevent the positioning seat 300 from hindering the extension and retraction of the piston rod 220. The first end of the positioning pin 400 is located in the avoidance hole 301 and fixedly connected to the positioning seat 300, and the positioning pin 400 is perpendicular to the upper side of the positioning seat 300. The positioning pin 400 is formed with a movable through hole 401 along the extension direction, and the movable through hole 401 penetrates the positioning pin 400. The piston rod 220 is movably arranged in the movable through hole 401. The second end of the positioning pin 400 is formed with a plurality of sliding holes 402 arranged at intervals along the circumferential direction, and each sliding hole 402 is connected to the movable through hole 401. There are multiple clamping blocks 500, and the multiple clamping blocks 500 are slidably arranged in the multiple sliding holes 402 in a one-to-one correspondence. A slope 501 is formed on one side of each clamping block 500 adjacent to the movable through hole 401, and the slope 501 slides against the conical surface 221, so that the piston rod 220 pushes each clamping block 500 to extend and retract in the corresponding sliding hole 402 when extending and retracting.

[0052] like Figures 1 to 4 As shown, in this embodiment, the avoidance hole 301 is a circular hole, the first end of the positioning pin 400 is located in the avoidance hole 301 and is fixedly sleeved with the positioning seat 300, and the positioning pin 400 and the positioning seat 300 are interference fit. When clamping the nozzle 20, the nozzle 20 is sleeved on the positioning pin 400, and then the piston rod 220 of the telescopic cylinder 200 rises, so that the conical surface 221 of the piston rod 220 slides against the inclined surface 501 of the multiple clamping blocks 500, so as to push the multiple clamping blocks 500 to slide outward from the positioning pin 400 and abut against the inner wall of the nozzle 20, so that the multiple clamping blocks 500 clamp the nozzle 20, and then the outer surface of the nozzle 20 is processed. After the processing of the outer surface of the nozzle 20 is completed, the piston rod 220 descends, so that the conical surface 221 of the piston rod 220 releases the clamping block 500, and then the clamping block 500 releases the nozzle 20, and then the nozzle 20 is taken out.

[0053] In the above-mentioned nozzle processing equipment, after the nozzle 20 is sleeved on the positioning pin 400, the telescopic cylinder 200 is actuated to make the piston rod 220 rise, so that the conical surface 221 of the piston rod 220 pushes the multiple clamping blocks 500 to slide outward, and then the multiple clamping blocks 500 clamp the inner wall of the nozzle 20, thus achieving the clamping of the nozzle 20 by the nozzle internal support clamping mechanism 10. Since the clamping block 500 does not need to contact the surface of the nozzle 20, the clamping block 500 does not block the surface of the nozzle 20 during processing, so that the nozzle 20 does not need to change direction during processing, thereby improving the processing efficiency of the nozzle 20. Moreover, since the clamping part of the nozzle internal support clamping mechanism 10, i.e., the clamping block 500, acts on the inside of the nozzle 20, the problem of the clamping block 500 forming a clamping mark on the surface of the nozzle 20 is avoided, thereby improving the surface quality of the nozzle 20.

[0054] Compared with the prior art, the present invention has at least the following advantages:

[0055] After the nozzle 20 is sleeved on the positioning pin 400, the telescopic cylinder 200 is actuated to raise the piston rod 220, so that the conical surface 221 of the piston rod 220 pushes the multiple clamping blocks 500 to slide outward, thereby making the multiple clamping blocks 500 clamp the inner wall of the nozzle 20, thus achieving the clamping of the nozzle 20 by the nozzle internal support clamping mechanism 10. Since the clamping block 500 does not need to contact the surface of the nozzle 20, the clamping block 500 does not block the surface of the nozzle 20 during processing, so that the nozzle 20 does not need to change direction during processing, thereby improving the processing efficiency of the nozzle 20. Moreover, since the clamping part of the nozzle internal support clamping mechanism 10, i.e., the clamping block 500, acts on the inside of the nozzle 20, the problem of the clamping block 500 forming a clamping mark on the surface of the nozzle 20 is avoided, thereby improving the surface quality of the nozzle 20.

[0056] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A nozzle internal support clamping mechanism, characterized in that: include: Mounting seat; A telescopic cylinder, wherein the lower end of the cylinder body of the telescopic cylinder is mounted on the mounting seat, and a conical surface is formed on the outer side of the piston rod of the telescopic cylinder, the conical surface is located at the end of the piston rod away from the cylinder body, and the conical surface is arranged toward the upper side of the piston rod; A positioning seat, the positioning seat is installed at the upper end of the cylinder body of the telescopic cylinder, the positioning seat is formed with an avoidance hole, and the piston rod is passed through the avoidance hole; A positioning pin, wherein the first end of the positioning pin is located in the avoidance hole and fixedly connected to the positioning seat, the positioning pin is formed with a movable through hole along the extension direction, the piston rod is movably inserted into the movable through hole, and the second end of the positioning pin is formed with a plurality of sliding holes arranged at intervals along the circumferential direction, each of the sliding holes is connected to the movable through hole; and A clamping block, wherein the number of the clamping blocks is plural, and the plurality of the clamping blocks are slidably disposed in the plurality of sliding holes in a one-to-one correspondence, and a slope is formed on a side of each of the clamping blocks adjacent to the movable through hole, and the slope slides against the conical surface, so that the piston rod pushes each of the clamping blocks to be retracted in the corresponding sliding hole when retracting; Wherein, each pressing block is provided with a guide protrusion on both sides opposite to each other, and the extension direction of each guide protrusion is consistent with the sliding direction of the corresponding pressing block, and each sliding hole is provided with a guide groove on both side walls opposite to each other, and the two guide protrusions of each pressing block are respectively slidably arranged in the two guide grooves corresponding to the corresponding sliding hole; Each clamping block includes an external pressure part and an elastic part. The external pressure part of each clamping block is slidably arranged in the corresponding sliding hole. The inclined surface of each clamping block is formed on the side of the corresponding external pressure part adjacent to the movable through hole. The elastic part of each clamping block is connected to the side of the corresponding external pressure part away from the movable through hole. The elastic part of each clamping block is used to abut against the inner wall of the nozzle. The elastic part of each clamping block is formed with a plurality of deformation holes arranged at intervals.

2. The nozzle inner support clamping mechanism according to claim 1, characterized in that: The nozzle internal support clamping mechanism also includes a plurality of limit blocks, and the positioning pin is also formed with a plurality of fixing holes, and the plurality of fixing holes are connected with the plurality of sliding holes in a one-to-one correspondence, and the plurality of limit blocks are fixedly connected to the plurality of fixing holes in a one-to-one correspondence, and a limit groove is formed on a side of each limit block adjacent to the corresponding clamping block, and a limit rod is protruded on a side of each clamping block adjacent to the corresponding limit block, and the limit rod of each clamping block is limited in the limit groove of the corresponding clamping block to prevent each clamping block from detaching from the positioning pin.

3. The nozzle inner support clamping mechanism according to claim 2, characterized in that: Each of the limit blocks is embedded in the corresponding fixing hole.

4. The nozzle inner support clamping mechanism according to claim 2, characterized in that: Each of the pressing blocks and the positioning pin is clearance-fitted.

5. The nozzle inner support clamping mechanism according to claim 2, characterized in that: Each of the fixing holes protrudes from two opposite sides of the corresponding sliding hole.

6. The nozzle inner support clamping mechanism according to claim 2, characterized in that: Each of the fixing holes is a rectangular hole.

7. The nozzle inner support clamping mechanism according to claim 6, characterized in that: Each of the fixing holes extends along the circumference of the positioning pin.

8. The nozzle inner support clamping mechanism according to claim 2, characterized in that: Each of the sliding holes is a rectangular hole.

9. The nozzle inner support clamping mechanism according to claim 8, characterized in that: Each of the sliding holes extends along the axial direction of the positioning pin.

10. A nozzle processing device, characterized in that: The invention comprises the nozzle internal support clamping mechanism according to any one of claims 1 to 9.

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