CN217596254U - Steel band automatic centering welding set - Google Patents

Abstract

The utility model discloses a steel band automatic centering welding set, including the first clamp plate feeding system, first guide system, welding system, second guide system, second clamp plate feeding system that set gradually, the utility model discloses can realize the full-automatic welding of steel band, can realize automatic feeding and automatic discharge through first clamp plate feeding system, second clamp plate feeding system, can realize the automatic adjustment of steel band position through first guide system, second guide system, undertake the automatic centering task of two independent steel bands, improve the welding precision, reduce artifical intensity of labour among the welding process, raise the efficiency, improve degree of automation, reduction in production cost.

Description

Steel band automatic centering welding set

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of steel band production, especially steel band automatic centering welding set's technical field.

[ background ] A method for producing a semiconductor device

The steel strip is rolled into a roll when entering a machine tool or a stamping machine, the steel strip is tiled for a certain length and then processed, after one roll of steel strip is processed, another roll of steel strip is required to be placed at the same position for processing, in order to guarantee continuous processing of the steel strip, when the first roll of steel strip is about to be processed, the steel strip to be processed is required to be welded with the second roll of steel strip, and the tail of the first roll of steel strip is connected with the head of the second roll of steel strip into a whole through welding. The existing multi-pass manual welding has low welding precision, can not ensure the alignment of the end parts of two coils of steel strips, thus influencing subsequent processing and having high labor intensity of welding workers.

[ Utility model ] A method for manufacturing a semiconductor device

The utility model discloses a solve the problem among the prior art, provide a steel band automatic centering welding set, can accomplish the steel band butt joint automatically, welding quality is high, artifical low in labor strength.

In order to achieve the above purpose, the utility model provides a steel belt automatic centering welding device, which comprises a first pressing plate feeding system, a first guiding system, a welding system, a second guiding system and a second pressing plate feeding system which are arranged in sequence, wherein the first pressing plate feeding system and the second pressing plate feeding system have the same structure and respectively comprise a feeding rack and a plurality of sliding rails transversely arranged at the upper end of the feeding rack, the sliding rails are provided with a feeding sliding plate which slides back and forth along the sliding rails towards the end far away from or close to the welding system, the top of the feeding sliding plate is provided with a feeding plane matched with materials, the upper side of the feeding plane is provided with an upper clamping plate matched with the feeding sliding plate, two sides of the feeding sliding plate are provided with clamping cylinders for driving the upper clamping plate to move up and down, one end of the feeding rack is provided with a feeding hydraulic cylinder for driving the feeding sliding plate to slide back and forth along the sliding rails towards or close to the end of the welding system, a feeding support roller matched with the feeding plane is arranged at one end, close to the welding system, of the feeding rack, the first guiding system and the second guiding system are of the same structure and respectively comprise a guiding rack, at least two vertically arranged wire sliding rods are arranged at the upper end of the guiding rack, supporting platform devices in sliding connection with the wire sliding rods are arranged on the wire sliding rods, supporting planes matched with materials are arranged at the tops of the supporting platform devices, a platform lifting cylinder used for driving the supporting platform devices to slide up and down along the wire sliding rods is arranged on the guiding rack, a guiding device is arranged at the tops of the wire sliding rods and comprises a guiding support fixedly arranged at the tops of the wire sliding rods, fixed guiding clamping plates fixedly connected with the guiding support and movable guiding clamping plates matched with the fixed guiding clamping plates are arranged on the guiding support, the guide bracket is provided with a guide driving mechanism which is used for driving the movable guide clamping plate to be far away from or close to the end of the fixed guide clamping plate to slide in a reciprocating manner.

Preferably, a material carrying plate matched with the feeding plane is arranged on the upper side of the feeding hydraulic cylinder, and a material carrying groove arranged towards the welding system is arranged on the upper side of the material carrying plate.

Preferably, the welding system comprises a welding rack, a welding platform is arranged at the upper end of the welding rack, a pressing plate mechanism which is matched with the welding platform and used for pressing and fixing materials is arranged on the welding platform, a welding gun which is arranged towards the welding platform and used for driving the welding gun to vertically lift up and down is arranged on the upper side of the welding platform, and a left feeding power device and a right feeding power device which are used for driving the welding gun to vertically lift up and down are arranged on the upper side of the welding platform and are along the left and right reciprocating movement of the welding platform.

Preferably, the pressing plate mechanism comprises a first pressing plate and a second pressing plate which are transversely arranged on the upper side of the welding platform, a plurality of pressing plate lifting cylinders used for respectively driving the first pressing plate and the second pressing plate to vertically lift are arranged on the welding rack, and a welding gap for welding the welding gun is arranged between the first pressing plate and the second pressing plate.

Preferably, a platform open slot is formed in the position, corresponding to the welding gap, of the upper side of the welding platform, and a shielding gas jet pipe is laid in the platform open slot.

As preferred, control and feed power device include a plurality of horizontal locate the welding cross rail of welding platform upside, slidable locate welding slide on the welding cross rail, with the relative parallel arrangement's of welding cross rail rack, be equipped with on the welding slide with rack toothing's drive gear and be used for the drive the rotatory first welding driving motor of drive gear, it includes vertical locating to feed power device from top to bottom the last sharp lead screw module of welding slide, be equipped with on the lead screw slider of sharp lead screw module be used for with welding rifle fixed connection's welder support, sharp lead screw module one end is equipped with and is used for driving its rotatory second welding driving motor.

Preferably, the guide driving mechanism comprises a guide driving cylinder transversely arranged on the upper side of the fixed guide clamping plate, a first rack is transversely arranged on a cylinder arm of the guide driving cylinder, a second rack is transversely arranged on the movable guide clamping plate, a transmission gear meshed with the first rack and the second rack is arranged between the first rack and the second rack, and the transmission gear is rotatably connected with the guide support.

Preferably, the thrust device is further arranged between the supporting platform device and the guide support, the thrust device comprises a first thrust plate and a plurality of thrust plate slide bars, the first thrust plate and the plurality of thrust plate slide bars are transversely arranged on the side edge of the supporting platform device, the thrust plate slide bars are vertically arranged on the lower side of the first thrust plate, the side edge of the supporting platform device is provided with a sliding sleeve in sliding fit with the thrust plate slide bars, a damping spring used for driving the first thrust plate to move away from the sliding sleeve end to slide is sleeved on the thrust plate slide bars, the thrust plate slide bars are naturally higher than the horizontal height of a supporting plane of the supporting platform device, a second thrust plate matched with the first thrust plate is arranged on the upper side of the first thrust plate, and the second thrust plate is fixedly connected with the side edge of the guide support.

The utility model relates to a steel band automatic centering welding set's beneficial effect: the utility model discloses can realize the full-automatic welding of steel band, can realize automatic feeding and automatic discharge through first clamp plate feeding system, second clamp plate feeding system, can realize the automatic adjustment of steel band position through first guide system, second guide system, undertake the automatic centering task of two independent steel bands, improve the welding precision, reduce artifical intensity of labour in the welding process, raise the efficiency, improve degree of automation, reduction in production cost.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic view of a three-dimensional structure of the automatic steel band centering welding device of the present invention.

Fig. 2 is a three-dimensional structure schematic diagram of a first pressing plate feeding system and a second pressing plate feeding system of the automatic steel belt centering welding device of the present invention.

Fig. 3 is a schematic view of a three-dimensional structure of a first guiding system and a second guiding system of the automatic steel band centering welding device of the present invention.

Fig. 4 is a schematic view of a three-dimensional structure of a guiding driving mechanism of the automatic steel band centering welding device of the present invention.

Fig. 5 is a three-dimensional structure diagram of a welding system of the automatic steel band centering welding device of the present invention.

Fig. 6 is a schematic view of another angle of the welding system of the automatic steel band centering welding device of the present invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the description of the present invention, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to which the description refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The first embodiment is as follows:

referring to fig. 1-6, the utility model relates to a welding device, including the first clamp plate feeding system, first guidance system, welding system 1, second guidance system, the second clamp plate feeding system that set gradually, its characterized in that: the first pressure plate feeding system and the second pressure plate feeding system are of the same structure and respectively comprise a feeding rack 21 and a plurality of sliding rails 22 transversely arranged at the upper end of the feeding rack 21, the sliding rails 22 are provided with feeding sliding plates 23 which slide back and forth along the sliding rails 22 far away from or close to the end of the welding system 1, the top of each feeding sliding plate 23 is provided with a feeding plane adapted to the material, the upper side of the feeding plane is provided with an upper clamping plate 24 matched with the feeding plane, two sides of each feeding sliding plate 23 are provided with clamping cylinders 25 used for driving the upper clamping plate 24 to lift up and down, one end of the feeding rack 21 is provided with a feeding hydraulic cylinder 26 used for driving the feeding sliding plate 23 to slide back and forth along the sliding rails 22 far away from or close to the end of the welding system 1, one end of the feeding rack 21, which is close to the welding system 1 is provided with a feeding support roller 27 matched with the feeding plane, the first guide system and the second guide system are of the same structure and respectively comprise a guide rack 31, the upper end of the guide rack 31 is provided with at least two vertically arranged lead sliding rods 32, the lead rods 32 are provided with a support platform device 33 capable of being connected with the lead rods 32 capable of sliding connected with the lead rods, the support platform device 353 arranged on the lead rods 351 of the guide rack 32, the support platform 351, the guide platform is provided with the guide device 351, the guide clamp plate 35, the guide device 35 and the guide clamp plate 32, the guide device 35 and the guide clamp plate 35 and the guide device for fixing the lead rod 32, the guide device, the guide clamp plate 32, the guide device is arranged on the guide plate 32, the guide device, the guide plate 32, the guide clamp plate 34 and the guide device for fixing the guide device, the guide device 32, the guide device is arranged on the guide plate 352, the guide device, the guide bracket 351 is provided with a guide driving mechanism for driving the movable guide clamping plate 353 to slide back and forth far away from or close to the fixed guide clamping plate 352. The automatic steel strip welding machine has the advantages that the full-automatic welding of steel strips can be achieved, automatic feeding and automatic discharging can be achieved through the first pressing plate feeding system and the second pressing plate feeding system, the automatic adjustment of the positions of the steel strips can be achieved through the first guiding system and the second guiding system, the automatic centering task of the two independent steel strips is undertaken, the welding precision is improved, the manual labor intensity in the welding process is reduced, the efficiency is improved, the automation degree is improved, and the production cost is reduced. The feeding supporting rollers 27 can ensure that the steel strip does not cause too large error in the horizontal height when being conveyed to the guide system 3, and the supporting rollers 27 are set up to provide supporting force. After the steel strip is fed to the first guide system via the first platen feeding system, the supporting platform device 33 is pushed by the hydraulic cylinder, and the steel strip having a height difference with the welding plane is transferred to a position corresponding to the height of the welding platform 111. And is used for laying for the next automatic centering operation.

Referring to fig. 1 and 2, a material loading plate 28 matched with the feeding plane is arranged on the upper side of the feeding hydraulic cylinder 26, and a material loading groove 281 arranged towards the welding system 1 is arranged on the upper side of the material loading plate 28. Considering the problems of toughness, conveying space, surface scratch and the like of the steel strip. A material loading groove 281 is specially arranged at the upper end of the feeding hydraulic cylinder 26 to balance the supporting force. The outer layer of the material loading groove is made of metal, the strength of the groove is guaranteed, and smooth plastic plates are paved inside the groove, so that the friction and scratch of steel belts are reduced.

Referring to fig. 1, 5 and 6, the welding system 1 includes a welding frame 11, a welding platform 111 is arranged at the upper end of the welding frame 11, a pressing plate mechanism 12 which is matched with the welding platform 111 and used for pressing and fixing the material is arranged on the welding platform 111, a welding gun 13 which is arranged towards the welding platform 111, an up-and-down feeding power device 14 which is used for driving the welding gun 13 to ascend and descend up and down, and a left-and-right feeding power device 15 which is used for driving the welding gun 13 to reciprocate left and right along the welding platform 111 are arranged on the upper side of the welding platform 111.

Referring to fig. 1, 5 and 6, the pressing plate mechanism 12 includes a first pressing plate 121 and a second pressing plate 122 transversely disposed on the upper side of the welding platform 111, the welding frame 11 is provided with a plurality of pressing plate lifting cylinders 123 for respectively driving the first pressing plate 121 and the second pressing plate 122 to lift up and down, and a welding gap for welding the welding gun 13 is disposed between the first pressing plate 121 and the second pressing plate 122.

Referring to fig. 1, 5 and 6, a platform opening groove 1111 is formed at a position corresponding to the welding gap on the upper side of the welding platform 111, and a shielding gas injection pipe is laid in the platform opening groove 1111. The protective gas jet pipe can jet protective gas from the platform open slot 1111 to assist welding.

Referring to fig. 1, 5 and 6, the left and right feeding power device 15 includes a plurality of welding cross rails 151 transversely disposed on the upper side of the welding platform 111, a welding sliding plate 152 slidably disposed on the welding cross rails 151, and a rack 153 disposed in parallel with the welding cross rails 151, a driving gear 154 engaged with the rack 153 and a first welding driving motor 155 for driving the driving gear 154 to rotate are disposed on the welding sliding plate 152, the up and down feeding power device 14 includes a linear lead screw module 141 vertically disposed on the welding sliding plate 152, a welding gun bracket 142 for fixedly connecting with the welding gun 13 is disposed on a lead screw slider of the linear lead screw module 141, and a second welding driving motor 143 for driving the linear lead screw module 141 to rotate is disposed at one end of the linear lead screw module 141.

Referring to fig. 1, 3 and 4, the guiding driving mechanism includes a guiding driving cylinder 354 transversely disposed on an upper side of the fixed guiding clamp plate 352, a first rack 345 is transversely disposed on a cylinder arm of the guiding driving cylinder 354, a second rack 346 is transversely disposed on the movable guiding clamp plate 353, a transmission gear 347 engaged with the first rack 345 and the second rack 346 is disposed between the first rack 346 and the second rack 346, and the transmission gear 347 is rotatably connected to the guiding bracket 351. The operation process of the guide driving mechanism mainly comprises the following steps: after the steel strip is transmitted to the welding platform 111 under the assistance of the height of the supporting platform device 33, the guiding driving cylinder 354 pushes the first rack 345 in the sliding slot to drive the transmission gear 347 to rotate, and finally, the power is transmitted to the second rack 346, so that the movable guiding clamp plate 353 is moved to clamp and position the steel strip in parallel.

Referring to fig. 1, 3 and 4, a thrust device is further disposed between the supporting platform device 33 and the guiding bracket 351, the thrust device includes a first thrust plate 36 transversely disposed on a side edge of the supporting platform device 33 and a plurality of thrust plate slide bars 37 vertically disposed on a lower side of the first thrust plate 36, a sliding sleeve 38 slidably engaged with the thrust plate slide bars 37 is disposed on a side edge of the supporting platform device 33, a damping spring 39 for driving the first thrust plate 36 to slide towards an end away from the sliding sleeve 38 is sleeved on the thrust plate slide bars 37, the thrust plate slide bars 37 are naturally higher than a supporting plane horizontal height of the supporting platform device 33, a second thrust plate 310 engaged with the first thrust plate 36 is disposed on an upper side of the first thrust plate 36, and the second thrust plate 310 is fixedly connected with a side edge of the guiding bracket 351.

The utility model discloses the working process:

the utility model relates to a steel band automatic centering welding set is in the course of the work, including following step: s1, a steel belt is transferred to a position between a feeding plane of a first pressing plate feeding system and an upper clamping plate 24 preliminarily, a clamping cylinder 25 drives the upper clamping plate 24 to clamp the steel belt, a feeding sliding plate 23 is driven by a feeding hydraulic cylinder 26 to move towards the end close to a welding system 1, then the clamping cylinder 25 drives the upper clamping plate 24 to loosen, the feeding sliding plate 23 is driven by the feeding hydraulic cylinder 26 to move towards the end far away from the welding system 1, clamping and conveying are carried out again, and operation is repeated until the steel belt is conveyed to a proper position;

s2, after the steel strip is conveyed to the position above a supporting platform device 33 of the first guiding system primarily, the supporting platform device 33 is lifted through a platform lifting cylinder 34, and the height of the steel strip is lifted to be consistent with that of a welding platform 111;

s3, the first pressing plate feeding system continues to convey the steel strip until the end part of the steel strip is conveyed to the welding platform 111, and the end face of the steel strip is partially contacted with the end face of another steel strip fixed on the welding platform 111;

s4, the guide driving mechanisms of the first guide system and the second guide system simultaneously drive the movable guide clamping plate 353 to move in a parallel mode to the end close to the fixed guide clamping plate 352 for centering and positioning, and the end faces of the two steel strips are centered to be within an allowable error;

s5, pressing the steel strips at two ends by the pressing plate mechanism 12, and starting welding operation;

s6, after welding is finished, the pressing plate mechanism 12 is lifted up and released, the two guide driving mechanisms are released, the material clamping cylinder 25 of the first pressing plate feeding system is released, and the second pressing plate feeding system carries out discharging and transporting operation;

s7, the second pressing plate feeding system transmits the steel strip until the end part of the steel strip is positioned above the platform opening groove 1111 of the welding platform 111;

s8, a guide driving mechanism of the second guide system drives a movable guide clamping plate 353 to position and clamp the steel belt, and a pressing plate mechanism 12 presses the fixed steel belt downwards;

s9, the welding gun 13 is reset, and new steel strips are conveyed in for circular operation.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims (8)

1. The utility model provides a steel band automatic centering welding set, is including the first clamp plate feeding system, first guide system, welding system (1), second guide system, the second clamp plate feeding system that set gradually, its characterized in that: the first pressing plate feeding system is the same as the second pressing plate feeding system in structure, comprises a feeding rack (21) and a plurality of sliding rails (22) transversely arranged at the upper end of the feeding rack (21), the sliding rails (22) are provided with edges, the sliding rails (22) are far away from or close to the feeding sliding plates (23) with the reciprocating sliding of the welding system (1) end, the top of each feeding sliding plate (23) is provided with a feeding plane matched with a material, the upper side of the feeding plane is provided with an upper clamping plate (24) matched with the feeding plane, the two sides of each feeding sliding plate (23) are provided with material clamping cylinders (25) used for driving the upper clamping plate (24) to ascend and descend, one end of each feeding rack (21) is provided with a feeding supporting roller (27) matched with the feeding plane, the first guiding system is the same as the second guiding system in structure and comprises a guiding rack (31), the upper ends of the guiding rack (31) are provided with at least one guide wire (32), and the top of each sliding rod (33) is provided with a supporting device capable of connecting with a vertical guide platform (33) capable of connecting device capable of connecting with the sliding device with the sliding rod (33) and a material supporting platform, be equipped with on direction frame (31) and be used for the drive supporting platform device (33) are followed gliding platform lift cylinder (34) about wire slide bar (32), wire slide bar (32) top is equipped with guider (35), guider (35) are including fixed locating guide bracket (351) at wire slide bar (32) top, be equipped with on guide bracket (351) rather than fixed connection's fixed guide splint (352) and with fixed guide splint (352) complex activity guide splint (353), activity guide splint (353) with be equipped with the guide gap that can supply the material to pass through between fixed guide splint (352), be equipped with on guide bracket (351) and be used for the drive activity guide splint (353) are to keeping away from or being close to fixed guide splint (352) end reciprocating sliding's direction actuating mechanism.

2. The automatic steel strip centering welding device as claimed in claim 1, wherein: the upper side of the feeding hydraulic cylinder (26) is provided with a material carrying plate (28) matched with the feeding plane, and the upper side of the material carrying plate (28) is provided with a material carrying groove (281) arranged towards the welding system (1).

3. The automatic steel strip centering welding device as claimed in claim 1, wherein: welding system (1) is including welding frame (11), welding frame (11) upper end is equipped with welded platform (111), be equipped with on welded platform (111) and be used for compressing tightly fixed clamp plate mechanism (12) with the material with its cooperation, welded platform (111) upside is equipped with towards its welding rifle (13) that sets up and is used for the drive welding rifle (13) oscilaltion from top to bottom feed power device (14), be used for the drive welding rifle (13) are followed reciprocating motion's left and right sides feeds power device (15) about welded platform (111).

4. The automatic steel strip centering welding device according to claim 3, characterized in that: the pressing plate mechanism (12) comprises a first pressing plate (121) and a second pressing plate (122) which are transversely arranged on the upper side of the welding platform (111), a plurality of pressing plate lifting cylinders (123) which are used for respectively driving the first pressing plate (121) and the second pressing plate (122) to ascend and descend are arranged on the welding rack (11), and welding gaps for welding guns (13) are formed between the first pressing plate (121) and the second pressing plate (122).

5. The automatic steel strip centering welding device as claimed in claim 4, wherein: the welding platform (111) upside with weld gap corresponds the department and is equipped with platform open slot (1111), protective gas injection pipe has been laid in platform open slot (1111).

6. The automatic steel strip centering welding device as claimed in claim 3, wherein: it includes that a plurality of transversely locate to control to feed power device (15) welding cross rail (151), the slidable of welding platform (111) upside are located welding slide (152) on welding cross rail (151), with relative parallel arrangement's of welding cross rail (151) rack (153), be equipped with on welding slide (152) with drive gear (154) of rack (153) meshing and be used for the drive first welding driving motor (155) of drive gear (154) rotation, feed power device (14) including vertical locating sharp lead screw module (141) on welding slide (152), be equipped with on the lead screw slider of sharp lead screw module (141) be used for with welding gun (13) fixed connection's welder support (142), sharp lead screw module (141) one end is equipped with and is used for driving its rotatory second welding driving motor (143).

7. The automatic steel strip centering welding device as claimed in claim 1, wherein: the guide driving mechanism comprises a guide driving cylinder (354) transversely arranged on the upper side of the fixed guide clamping plate (352), a first rack (345) is transversely arranged on a cylinder arm of the guide driving cylinder (354), a second rack (346) is transversely arranged on the movable guide clamping plate (353), a transmission gear (347) which is meshed with the first rack (345) and the second rack (346) is arranged between the first rack (345) and the second rack (346), and the transmission gear (347) is rotatably connected with the guide support (351).

8. The automatic steel strip centering welding device of claim 7, characterized in that: support platform device (33) with still be equipped with thrust device between guide bracket (351), thrust device is including transversely locating first thrust plate (36) and a plurality of vertical locating of support platform device (33) side thrust plate slide bar (37) of first thrust plate (36) downside, support platform device (33) side be equipped with thrust plate slide bar (37) sliding fit's sliding sleeve (38), the cover is equipped with on thrust plate slide bar (37) and is used for the drive first thrust plate (36) are to keeping away from sliding sleeve (38) end gliding damping spring (39), first thrust plate (36) upside is equipped with rather than complex second thrust plate (310), second thrust plate (310) with guide bracket (351) side fixed connection.

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