A back tube hold-down device

Abstract

The present application relates to target material back tube processing and manufacturing technical field, disclose a kind of back tube pressing device, including mould, pressing piece and adjusting mechanism;The mould is opened with the containing passage for being placed into back tube along the first direction and is extended, the containing passage has limiting wall in, one end of the back tube is abutted to the limiting wall;The pressing piece is located in the containing passage, and one end of the pressing piece is abutted to one end of the back tube away from the limiting wall;One end of the adjusting mechanism is abutted to one end of the pressing piece away from the back tube;Wherein, the adjusting mechanism can increase or reduce the pressure of the pressing piece acting on the back tube;The present application can adjust the pressure acting on the back tube during the pressing process of back tube, to avoid bending in the pressing process of back tube due to excessive pressure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of target back tube processing and manufacturing, in particular to a back tube pressing device. BACKGROUND

[0002] The target is a sputtering source for forming various functional thin films on a substrate by magnetron sputtering under appropriate process conditions, and the target is generally formed by a back tube.

[0003] In the processing and manufacturing process of the target back tube, the back tube needs to be pressed, and the existing back tube pressing method is to directly press the back tube by a mold top seat. This pressing method cannot adjust the pressure acting on the back tube during the pressing process, which leads to the bending of the back tube due to excessive pressure during the pressing process. SUMMARY

[0004] The purpose of the present application is to provide a back tube pressing device which can adjust the pressure acting on the back tube during the pressing process of the back tube to avoid the bending of the back tube due to excessive pressure during the pressing process.

[0005] In order to achieve the above-mentioned purpose, the present application provides a back tube pressing device, which comprises a mold, a pressing member and an adjusting mechanism; the mold is provided with a containing channel extending along a first direction and used for placing a back tube, the containing channel is provided with a limiting wall inside, and one end of the back tube abuts against the limiting wall; the pressing member is located inside the containing channel, and one end of the pressing member abuts against one end of the back tube away from the limiting wall; one end of the adjusting mechanism abuts against one end of the pressing member away from the back tube; wherein the adjusting mechanism can increase or decrease the pressure acting on the back tube by the pressing member.

[0006] In some embodiments, the adjusting mechanism comprises a fixing member, an adjusting member, a pressing rod, a screw rod, a nut and an elastic member; the fixing member is fixed in the containing channel, and the fixing member is provided with a first through hole penetrating through the fixing member along the first direction; the adjusting member is located outside the containing channel, and the adjusting member is provided with a second through hole penetrating through the adjusting member along the first direction; one end of the pressing rod abuts against one end of the pressing member away from the back tube, and the other end of the pressing rod is connected to the adjusting member through the first through hole and away from the pressing member; one end of the screw rod is connected to the fixing member, and the other end of the screw rod is away from the fixing member and penetrates through the second through hole; the nut is threadedly connected to the screw rod and located on one side of the adjusting member away from the fixing member, and one side of the nut facing the adjusting member abuts against one side of the adjusting member facing the nut; the elastic member is sleeved on the screw rod, and both ends of the elastic member along the first direction abut against the fixing member and the adjusting member respectively.

[0007] Further, the number of the first through holes is multiple, and the multiple first through holes are uniformly distributed around the center of the fixing member; the number of the pressing rods is multiple, and the multiple pressing rods correspond to the multiple first through holes one by one.

[0008] Further, the number of the second through holes is multiple, and the multiple second through holes are uniformly distributed around the center of the adjusting member; the number of the screw rods is multiple, the number of the nuts is multiple, and the number of the elastic members is multiple; the multiple screw rods, the multiple nuts, the multiple elastic members, the multiple third through holes, and the multiple second through holes correspond to each other one by one.

[0009] In some embodiments, the adjusting mechanism comprises a fixing member, an adjusting member, a pressing rod, a screw rod, a nut, an elastic member, and a transition member; the fixing member is fixed in the accommodating channel, and the fixing member is provided with a first through hole penetrating the fixing member in the first direction; one end of the pressing rod is abutted against the end of the pressing member away from the back tube, and the other end of the pressing rod is away from the pressing member and penetrates the first through hole to be connected with the transition member; the adjusting member is located outside the accommodating channel, and the adjusting member is provided with a second through hole penetrating the adjusting member in the first direction; the transition member is provided with a third through hole penetrating the transition member in the first direction; one end of the screw rod is connected to the fixing member, and the other end of the screw rod is away from the fixing member and penetrates the third through hole and the second through hole in sequence; the nut is threadedly connected to one end of the screw rod and is located on the side of the adjusting member away from the transition member, and the surface of the nut facing the adjusting member is abutted against the surface of the adjusting member facing the nut; the elastic member is sleeved on the screw rod, and the two ends of the elastic member in the first direction are respectively abutted against the transition member and the adjusting member.

[0010] Further, the number of the first through holes is multiple, and the multiple first through holes are uniformly distributed around the center of the fixing member; the number of the pressing rods is multiple, and the multiple pressing rods correspond to the multiple first through holes one by one.

[0011] Further, the number of the second through holes is multiple, and the multiple second through holes are uniformly distributed around the center of the adjusting member; the number of the third through holes is multiple, and the multiple third through holes are uniformly distributed around the center of the transition member; the number of the screw rods is multiple, the number of the nuts is multiple, and the number of the elastic members is multiple; the multiple screw rods, the multiple nuts, the multiple elastic members, the multiple third through holes, and the multiple second through holes correspond to each other one by one.

[0012] In some embodiments, the fixing member is a ring-shaped plate structure, and the adjusting member is a ring-shaped plate structure.

[0013] In some embodiments, the transition member is a ring-shaped plate structure.

[0014] In some embodiments, the mold comprises a mold top base, a mold main body and a mold bottom base connected in sequence along a first direction; the mold top base is provided with a first hole penetrating through the mold top base along the first direction, the mold main body is provided with a second hole penetrating through the mold main body along the first direction and coaxial with the first hole, the first hole and the second hole are in communication to form the accommodation channel, and the mold bottom base is provided with the limiting wall in the accommodation channel on one side facing the second hole.

[0015] Further, the mold bottom base is provided with a third hole penetrating through the mold bottom base along the first direction and coaxial with the second hole, the first hole, the second hole and the third hole are circular holes, and the diameter of the third hole is smaller than that of the second hole.

[0016] The two ends of the mold main body along the first direction are a first end and a second end respectively, and the mold top base is detachably connected to the first end and / or the mold bottom base is detachably connected to the second end.

[0017] Compared with the prior art, the back pipe pressing device provided by the embodiment of the present application has the beneficial effects that the adjusting mechanism can adjust the pressure of the pressing member acting on the back pipe during the pressing process of the back pipe, so as to avoid the bending of the back pipe due to excessive pressure during the pressing process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a front view of a back pipe pressing device provided by the embodiment one of the present application;

[0019] Figure 2 is a sectional view of a back pipe pressing device provided by the embodiment one of the present application;

[0020] Figure 3 is Figure 2 an enlarged schematic view of A of

[0021] Figure 4 is a sectional view of a pressing member provided by the embodiment one of the present application;

[0022] Figure 5 is a front view of a fixing member provided by the embodiment one of the present application;

[0023] Figure 6 is a front view of an adjusting member provided by the embodiment one of the present application;

[0024] Figure 7 is a sectional view of a back pipe pressing device provided by the embodiment two of the present application;

[0025] Figure 8 is Figure 7 an enlarged schematic view of B of

[0026] Figure 9 is a front view of the fixing member provided in Embodiment Two of the present application;

[0027] Figure 10 is a front view of the adjusting member provided in Embodiment Two of the present application;

[0028] Figure 11 is a rear view of the transition member provided in Embodiment Two of the present application.

[0029] In the figure, 1, mold; 11, mold top seat; 12, mold main body; 13, mold bottom seat; 10, containing channel; 101, first hole; 102, second hole; 131, limiting wall; 132, third hole;

[0030] 2, pressing member; 21, first annular mounting groove; 22, second annular mounting groove; 23, annular positioning groove; 24, fourth hole;

[0031] 3, adjusting mechanism; 31, fixing member; 32, adjusting member; 33, pressing rod; 34, screw rod; 35, nut; 36, elastic member; 37, transition member; 311, first through hole; 321, second through hole; 371, third through hole;

[0032] 4, back tube;

[0033] 5, first sealing ring;

[0034] 6, second sealing ring;

[0035] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0036] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0037] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0039] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connecting", "fixed", and the like, should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] Embodiment one

[0042] As shown in Figures 1-3 The back pipe pressing device provided by the embodiment one of the present application comprises a mold 1, a pressing piece 2 and an adjusting mechanism 3. The mold 1 is provided with a containing channel 10 extending along a first direction X and used for placing a back pipe 4. The containing channel 10 is provided with a limiting wall 131, and one end of the back pipe 4 abuts against the limiting wall 131. The pressing piece 2 is located in the containing channel 10, and one end of the pressing piece 2 abuts against one end of the back pipe 4 away from the limiting wall 131. One end of the adjusting mechanism 3 is connected to one end of the pressing piece 2 away from the back pipe 4. The adjusting mechanism 3 can increase or decrease the pressure of the pressing piece 2 acting on the back pipe 4.

[0043] Based on the technical scheme, the adjusting mechanism 3 can adjust the pressure of the pressing piece 2 acting on the back pipe 4 during the pressing process of the back pipe 4, so as to avoid the bending of the back pipe due to excessive pressure during the pressing process.

[0044] In the embodiment, the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0045] In other embodiments, the first direction X, the second direction Y and the third direction Z intersect with each other.

[0046] Referring to Figure 2 and Figure 3The mold 1 provided in the first embodiment of the present invention includes a mold top seat 11, a mold main body 12 and a mold base 13 connected in sequence along a first direction X; the mold top seat 11 is provided with a first hole 101 that passes through the mold top seat 11 along the first direction X, and the mold main body 12 is provided with a second hole 102 that passes through the mold main body 12 along the first direction X and is coaxial with the first hole 101. The first hole 101 and the second hole 102 are connected to each other to form an accommodating channel 10, and a side of the mold base 13 facing the second hole 102 forms a limiting wall 131 in the accommodating channel 10. The mold base 13 is provided with a third hole 132 that passes through the mold base 13 along the first direction X and is coaxial with the second hole 102. The first hole 101, the second hole 102 and the third hole 132 are all circular holes. The aperture of the first hole 101 is smaller than the aperture of the second hole 102, and the aperture of the third hole 132 is smaller than the aperture of the second hole 102. The back tube 4 is accommodated in the second hole 102, and the fixing member 31 is connected to the inner wall of the first hole 101.

[0047] The mold body 12 is a tubular structure with two ends open, and the axial direction of the mold body 12 is substantially parallel to the first direction X.

[0048] The mold body 12 has two ends along the first direction X, namely a first end and a second end. The mold top seat 11 is detachably connected to the first end, and the mold base 13 is detachably connected to the second end. This design facilitates placing the back tube 4 into the second hole 102 .

[0049] The mold top seat 11 can be detachably connected to the first end by screw connection, pin connection, structural clamping, etc., which is not limited here.

[0050] The mold base 13 can be detachably connected to the second end by screw connection, pin connection, structural clamping, etc., which is not limited here.

[0051] In some other embodiments, the mold top seat 11 is detachably connected to the first end, and the mold base 13 is fixedly connected to the second end, or the mold top seat 11 is fixedly connected to the first end, and the mold base 13 is detachably connected to the second end.

[0052] See Figure 3 and Figure 4 The back tube pressing device provided in the first embodiment of the present invention further includes a first sealing ring 5 and a second sealing ring 6. The first sealing ring 5 is sleeved on the pressing member 2, and the inner ring of the first sealing ring 5 contacts the pressing member 2, and the outer ring contacts the inner wall of the accommodating channel 10. The second sealing ring 6 is sleeved on the pressing member 2, and the inner ring of the second sealing ring 6 contacts the pressing member 2, and the outer ring contacts the inner wall of the accommodating channel 10.

[0053] The pressing member 2 is a tubular structure with two ends open.

[0054] The outer wall of the pressing part 2 is recessed inwardly and provided with a first annular mounting groove 21 at the end away from the back tube 4, the first sealing ring 5 is mounted in the first annular mounting groove 21, and the first annular mounting groove 21 is provided with a first opening at the end towards the adjusting mechanism 3, and the one end of the adjusting mechanism 3 abuts against the first sealing ring 5 through the first opening, that is, the adjusting mechanism 3 abuts against the one end of the pressing part 2 away from the back tube 4 through the first sealing ring 5.

[0055] The outer wall of the pressing part 2 is recessed inwardly and provided with a second annular mounting groove 22, the second sealing ring 6 is mounted in the second annular mounting groove 22, the first annular mounting groove 21 and the second annular mounting groove 22 are sequentially arranged on the outer wall of the pressing part 2 along the first direction X, and the second annular mounting groove 22 is provided with a second opening at the end towards the first annular mounting groove 21, and the second sealing ring 6 abuts against the one side of the first sealing ring 5 towards the second sealing ring 6 through the second opening.

[0056] The one end of the pressing part 2 towards the back tube 4 is provided with an annular positioning groove 23, and the one end of the back tube 4 towards the pressing part 2 is embedded in the annular positioning groove 23.

[0057] The pressing part 2 is provided with a fourth hole 24 penetrating the pressing part 2 along the first direction X and coaxial with the second hole 102.

[0058] In the embodiment, the first sealing ring 5 is a flexible sealing ring, specifically, the first sealing ring 5 is a rubber sealing ring.

[0059] In the embodiment, the second sealing ring 6 is a graphite packing sealing ring.

[0060] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 , the adjusting mechanism 3 provided by the embodiment one of the present application comprises a fixing part 31, an adjusting part 32, a pressing rod 33, a screw rod 34, a nut 35 and an elastic part 36.

[0061] The fixing member 31 is fixed in the accommodating channel 10, and the fixing member 31 is provided with a first through hole 311 penetrating the fixing member 31 along the first direction X; the adjusting member 32 is located outside the accommodating channel 10, and the adjusting member 32 is provided with a second through hole 321 penetrating the adjusting member 32 along the first direction X; one end of the pressing rod 33 abuts against the pressing member 2, and the other end of the pressing rod 33 is connected to the adjusting member 32 and penetrates the first through hole 311; one end of the screw rod 34 is connected to the fixing member 31, and the other end of the screw rod 34 penetrates the second through hole 321; the nut 35 is threadedly connected to the screw rod 34 and is located on the side of the adjusting member 32 away from the fixing member 31, and the surface of the nut 35 facing the adjusting member 32 abuts against the surface of the adjusting member 32 facing the nut 35; the elastic member 36 is sleeved on the screw rod 34, and the two ends of the elastic member 36 along the first direction X abut against the fixing member 31 and the adjusting member 32 respectively.

[0062] Specifically, the end of the pressing rod 33 facing the pressing member 2 abuts against the first sealing ring 5, and the pressing rod 33 abuts against the flexible first sealing ring 5, so that the first sealing ring 5 can play a certain buffering role between the pressing rod 33 and the pressing member 2 when the first sealing ring 5 plays a sealing role between the pressing member 2 and the accommodating channel 10, which can avoid rigid contact between the pressing rod 33 and the pressing member 2, can avoid abnormal noise caused by collision when the pressing rod 33 touches the pressing member 2, and can avoid that the pressure acting on the pressing member 2 changes too much in a short time when the nut 35 is screwed to adjust the pressure acting on the pressing member 2 by the pressing rod 33, so as to avoid that the pressure acting on the back tube 4 by the pressing member 2 changes too much in a short time, which is beneficial to adjust the pressure acting on the back tube 4 by the pressing member 2 to a suitable range.

[0063] The working process of the back tube pressing device provided in the embodiment is as follows: the nut 35 is screwed and the nut 35 is advanced along the first direction X, so that the adjusting member 32 and the pressing rod 33 can act greater force on the pressing member 2 along the first direction X, so as to increase the pressure acting on the back tube 4 by the pressing member 2; the nut 35 is screwed and the nut 35 is retreated along the first direction X, and the elastic force of the elastic member 36 can push the adjusting member 32 away from the fixing member 31, so that the adjusting member 32 and the pressing rod 33 can act smaller force on the pressing member 2 along the first direction X, so as to reduce the pressure acting on the back tube 4 by the pressing member 2; when the pressure acting on the back tube 4 by the pressing member 2 is adjusted, the deformation amount of the elastic member 36 can also be observed to determine the pressure acting on the back tube 4 by the pressing member 2.

[0064] In the embodiment, the elastic member 36 is a spring.

[0065] The first through holes 311 are in a plurality in number and uniformly distributed around the center of the fixing member 31; the pressing rods 33 are in a plurality in number and one-to-one corresponding to the plurality of first through holes 311.

[0066] In the embodiment, the first through holes 311 are in a number of twelve, and the pressing rods 33 are in a number of twelve.

[0067] In other embodiments, the first through holes 311 can be in any number of two, three, four, five, six, seven, eight, nine, ten, eleven, thirteen, etc.

[0068] The second through holes 321 are in a plurality in number and uniformly distributed around the center of the adjusting member 32; the screw rods 34 are in a plurality in number, the nuts 35 are in a plurality in number, and the elastic members 36 are in a plurality in number; the plurality of screw rods 34, the plurality of nuts 35, the plurality of elastic members 36, and the plurality of second through holes 321 are one-to-one corresponding. The plurality of screw rods 34, the plurality of nuts 35, the plurality of elastic members 36, and the plurality of second through holes 321 are adopted; the deformation amount of the plurality of elastic members 36 can be observed to determine the pressure of the pressing member 2 acting on the back tube 4 at different positions, so that the worker can adjust the pressure of the pressing member 2 at the corresponding position by turning the nut 35 at the corresponding position, which is beneficial to the pressing member 2 to uniformly apply appropriate pressure to each position of the back tube 4, so as to avoid the back tube 4 from bending and tilting due to excessive pressure or uneven pressure.

[0069] In the embodiment, the second through holes 321 are in a number of twelve, the screw rods 34 are in a number of twelve, the nuts 35 are in a number of twelve, and the elastic members 36 are in a number of twelve.

[0070] In other embodiments, the second through holes 321 can be in any number of two, three, four, five, six, seven, eight, nine, ten, eleven, thirteen, etc.

[0071] The number of the pressing rods 33 is the same as the number of the screw rods 34, and the plurality of pressing rods 33 and the plurality of screw rods 34 are alternately distributed.

[0072] The fixing member 31 is in a ring-shaped plate structure, and the outer wall of the fixing member 31 is fixedly connected with the inner wall of the accommodating channel 10.

[0073] The fixing member 31 can be fixed with the accommodating channel 10 by any connecting mode such as screw connection, pin connection, interference fit, structure clamping, welding, etc., which is not limited herein.

[0074] The adjusting member 32 is in a ring-shaped plate structure and coaxially arranged with the fixing member 31.

[0075] Embodiment two

[0076] Referring to Figures 7-11 Different from the first embodiment, the adjusting mechanism 3 provided by the second embodiment comprises a fixing member 31, an adjusting member 32, a pressing rod 33, a screw rod 34, a nut 35, an elastic member 36 and a transition member 37.

[0077] The fixing member 31 is fixed in the accommodating channel 10, and the fixing member 31 is provided with a first through hole 311 penetrating the fixing member 31 along the first direction X; one end of the pressing rod 33 abuts against one end of the pressing member 2 away from the back tube 4, and the other end of the pressing rod 33 is away from the pressing member 2 and connected with the transition member 37 through the first through hole 311; the adjusting member 32 is located outside the accommodating channel 10, and the adjusting member 32 is provided with a second through hole 321 penetrating the adjusting member 32 along the first direction X; the transition member 37 is provided with a third through hole 371 penetrating the transition member 37 along the first direction X; one end of the screw rod 34 is connected to the fixing member 31, and the other end of the screw rod 34 is away from the fixing member 31 and sequentially passes through the third through hole 371 and the second through hole 321; the nut 35 is threadedly connected to one end of the screw rod 34 and located on the side of the adjusting member 32 away from the transition member 37, and the side of the nut 35 facing the adjusting member 32 abuts against the side of the adjusting member 32 facing the nut 35; the elastic member 36 is sleeved on the screw rod 34, and the two ends of the elastic member 36 along the first direction X abut against the transition member 37 and the adjusting member 32 respectively.

[0078] The working process of the back tube pressing device provided by the second embodiment is as follows: by screwing the nut 35 and making the nut 35 advance along the first direction X, the elastic member 36 can be compressed and the elastic member 36 can exert more elastic force on the transition member 37, so that the transition member 37 and the pressing rod 33 can exert greater force on the pressing member 2 along the first direction X to increase the pressure of the pressing member 2 acting on the back tube 4; by screwing the nut 35 and making the nut 35 retreat along the first direction X, the elastic member 36 can be stretched and the elastic force acting on the transition member 37 can be reduced, so that the force of the transition member 37 and the pressing rod 33 acting on the pressing member 2 along the first direction X is reduced, and then the pressure of the pressing member 2 acting on the back tube 4 is reduced; when adjusting the pressure of the pressing member 2 acting on the back tube 4, the deformation amount of the elastic member 36 can also be observed to determine the pressure of the pressing member 2 acting on the back tube 4.

[0079] Compared with the way of the first embodiment by screwing the nut 35 to make the adjusting member 32 directly push the pressing rod 33 to advance along the first direction X to increase the pressure of the pressing member 2 acting on the back tube 4, the way of the second embodiment by screwing the nut 35 to make the adjusting member 32 indirectly push the transition member 37 and the pressing rod 33 to advance along the first direction X through the elastic member 36 to increase the pressure of the pressing member 2 acting on the back tube 4 has better buffering performance, and is more conducive to the staff to adjust the pressure of the pressing member 2 acting on the back tube 4 to a suitable range.

[0080] The number of the second through holes 321 is multiple, and the multiple second through holes 321 are uniformly distributed around the center of the adjusting member 32; the number of the third through holes 371 is multiple, and the multiple third through holes 371 are uniformly distributed around the center of the transition member 37; the number of the screw rods 34 is multiple, the number of the nuts 35 is multiple, and the number of the elastic members 36 is multiple; the multiple screw rods 34, the multiple nuts 35, the multiple elastic members 36, the multiple third through holes 371 and the multiple second through holes 321 are one-to-one corresponding.

[0081] The transition member 37 is annular plate structure, and the transition member 37 is coaxially arranged with the adjusting member 32.

[0082] In summary, the back pipe pressing device has the following beneficial effects:

[0083] 1. The adjusting mechanism 3 can adjust the pressure of the pressing member 2 acting on the back pipe 4 in the pressing process of the back pipe 4, so as to avoid the bending of the back pipe due to excessive pressure in the pressing process.

[0084] 2. The adjusting mechanism 3 formed by the fixing member 31, the adjusting member 32, the pressing rod 33, the screw rod 34, the nut 35 and the elastic member 36 can judge the pressure of the pressing member 2 acting on the back pipe 4 through the deformation amount of the elastic member 36, and can adjust the pressure of the pressing member 2 acting on the back pipe 4 by screwing the nut 35, so that the adjusting mechanism 3 formed by the fixing member 31, the adjusting member 32, the pressing rod 33, the screw rod 34, the nut 35 and the elastic member 36 is beneficial to the staff to understand and adjust the pressure of the pressing member 2 acting on the back pipe 4 in the pressing process of the back pipe 4, so as to avoid the bending of the back pipe 4 due to excessive pressure.

[0085] 3. The adjusting mechanism 3 formed by the fixing member 31, the adjusting member 32, the pressing rod 33, the screw rod 34, the nut 35, the elastic member 36 and the transition member 37 can judge the pressure of the pressing member 2 acting on the back pipe 4 through the deformation amount of the elastic member 36, and can adjust the pressure of the pressing member 2 acting on the back pipe 4 by screwing the nut 35, so that the adjusting mechanism 3 formed by the fixing member 31, the adjusting member 32, the pressing rod 33, the screw rod 34, the nut 35, the elastic member 36 and the transition member 37 is beneficial to the staff to understand and adjust the pressure of the pressing member 2 acting on the back pipe 4 in the pressing process of the back pipe 4, so as to avoid the bending of the back pipe 4 due to excessive pressure.

[0086] 4、Adopt multiple first via hole 311, multiple pressure bar 33, multiple screw rod 34, multiple nut 35, multiple elastic piece 36 and multiple second via hole 321;Can judge the pressure that the pressure piece 2 is acted on the back tube 4 at each different position by observing the deformation of multiple elastic piece 36, so that the staff can adjust the pressure of the corresponding position of pressure piece 2 by turning the nut 35 of the corresponding position, so that the pressure piece 2 can act the appropriate pressure on the back tube 4 evenly, to avoid the back tube 4 appears bending and inclination because of the pressure is too big or the pressure is not uniform.

[0087] The above only is the preferred embodiment of the present application, it should be pointed out, for the ordinary skill in the art, without departing from the technical principles of the present application, can also make a number of improvements and replacement, these improvements and replacement also should be considered as the protection scope of the present application.

Claims

1. A back tube pressing device, characterized in that: include: A mold, wherein the mold is provided with an accommodating channel extending along a first direction and used for receiving the back tube, the accommodating channel having a limiting wall, and one end of the back tube abuts against the limiting wall; a pressing member, the pressing member being located in the accommodating channel, and one end of the pressing member being in contact with an end of the back tube facing away from the limiting wall; an adjusting mechanism, one end of the adjusting mechanism abutting against an end of the pressing member facing away from the back tube; Wherein, the adjustment mechanism can increase or decrease the pressure exerted by the pressing member on the back tube; It also includes a first sealing ring, which is sleeved on the pressing member, with an inner ring of the first sealing ring in contact with the pressing member and an outer ring in contact with the inner wall of the accommodating channel; The outer wall of the end of the pressing member facing away from the back tube is recessed inwardly to form a first annular mounting groove, the first sealing ring is mounted in the first annular mounting groove, and the first annular mounting groove is provided with a first opening toward one end of the adjusting mechanism, one end of the adjusting mechanism abuts against the first sealing ring through the first opening, so that the adjusting mechanism abuts against the end of the pressing member facing away from the back tube through the first sealing ring; The first sealing ring is a flexible sealing ring; The adjustment mechanism includes a fixing member, an adjusting member, a pressure rod, a screw, a nut and an elastic member; The fixing member is fixed in the accommodating channel, and the fixing member is provided with a first through hole penetrating the fixing member along the first direction; The adjusting member is located outside the accommodating channel, and the adjusting member is provided with a second through hole penetrating the adjusting member along the first direction; One end of the pressure rod abuts against one end of the pressing member away from the back tube, and the other end faces away from the pressing member and passes through the first through hole to be connected to the adjusting member; One end of the screw is connected to the fixing member, and the other end is away from the fixing member and passes through the second through hole; The nut is threadedly connected to the screw and is located on a side of the adjusting member facing away from the fixing member, and a side of the nut facing the adjusting member abuts against a side of the adjusting member facing the nut; The elastic member is sleeved on the screw rod, and two ends of the elastic member along the first direction are respectively in contact with the fixing member and the adjusting member.

2. The back tube pressing device according to claim 1, characterized in that: There are multiple first via holes, and the multiple first via holes are evenly distributed around the center of the fixing member; There are multiple pressure rods, and the multiple pressure rods correspond to the multiple first via holes in a one-to-one manner.

3. The back tube pressing device according to claim 2, characterized in that: There are multiple second vias, and the multiple second vias are evenly distributed around the center of the adjusting member; There are multiple screws, multiple nuts, and multiple elastic members. The plurality of screw rods, the plurality of nuts, the plurality of elastic members and the plurality of the second via holes correspond one to one.

4. The back tube pressing device according to any one of claims 1 to 3, characterized in that: The fixing member is an annular plate structure, and the adjusting member is an annular plate structure.

5. The back tube pressing device according to claim 1, characterized in that: The mold includes a mold top seat, a mold main body and a mold base connected in sequence along a first direction; the mold top seat is provided with a first hole that penetrates the mold top seat along the first direction, and the mold main body is provided with a second hole that penetrates the mold main body along the first direction and is coaxial with the first hole. The first hole and the second hole are connected to each other to form the accommodating channel, and the limiting wall is formed in the accommodating channel on the side of the mold base facing the second hole.

6. A back tube pressing device, characterized in that: include: A mold, wherein the mold is provided with an accommodating channel extending along a first direction and used for receiving the back tube, the accommodating channel having a limiting wall, and one end of the back tube abuts against the limiting wall; a pressing member, the pressing member being located in the accommodating channel, and one end of the pressing member being in contact with an end of the back tube facing away from the limiting wall; an adjusting mechanism, one end of the adjusting mechanism abutting against an end of the pressing member facing away from the back tube; Wherein, the adjustment mechanism can increase or decrease the pressure exerted by the pressing member on the back tube; It also includes a first sealing ring, which is sleeved on the pressing member, with an inner ring of the first sealing ring in contact with the pressing member and an outer ring in contact with the inner wall of the accommodating channel; The outer wall of the end of the pressing member facing away from the back tube is recessed inwardly to form a first annular mounting groove, the first sealing ring is mounted in the first annular mounting groove, and the first annular mounting groove is provided with a first opening toward one end of the adjusting mechanism, one end of the adjusting mechanism abuts against the first sealing ring through the first opening, so that the adjusting mechanism abuts against the end of the pressing member facing away from the back tube through the first sealing ring; The first sealing ring is a flexible sealing ring; The adjustment mechanism includes a fixing member, an adjusting member, a pressure rod, a screw, a nut, an elastic member and a transition member; The fixing member is fixed in the accommodating channel, and the fixing member is provided with a first through hole penetrating the fixing member along the first direction; One end of the compression rod abuts against one end of the compression member away from the back tube, and the other end faces away from the compression member and passes through the first through hole to be connected to the transition member; The adjusting member is located outside the accommodating channel, and the adjusting member is provided with a second through hole penetrating the adjusting member along the first direction; the transition member is provided with a third through hole penetrating the transition member along the first direction; One end of the screw is connected to the fixing member, and the other end is away from the fixing member and passes through the third through hole and the second through hole in sequence; The nut is threadedly connected to one end of the screw and is located on a side of the adjusting member facing away from the transition member, and a side of the nut facing the adjusting member abuts against a side of the adjusting member facing the nut; The elastic member is sleeved on the screw rod, and two ends of the elastic member along the first direction are respectively in contact with the transition member and the adjusting member.

7. The back tube pressing device according to claim 6, characterized in that: There are multiple first via holes, and the multiple first via holes are evenly distributed around the center of the fixing member; There are multiple pressure rods, and the multiple pressure rods correspond to the multiple first via holes in a one-to-one manner.

8. The back tube pressing device according to claim 7, characterized in that: There are multiple second vias, and the multiple second vias are evenly distributed around the center of the adjusting member; There are multiple third vias, and the multiple third vias are evenly distributed around the center of the transition piece; There are multiple screws, multiple nuts, and multiple elastic members. The plurality of screw rods, the plurality of nuts, the plurality of elastic members, the plurality of third via holes and the plurality of second via holes correspond to each other one by one.

9. The back tube pressing device according to any one of claims 6 to 8, characterized in that: The transition piece is an annular plate structure.

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