Auxiliary clamping device for milling lower bottom plate of large box body

Abstract

The invention relates to an auxiliary clamping device for milling a lower bottom plate of a large box body, and relates to the technical field of machining auxiliary equipment. The two clamping units are arranged in the width direction of the mounting bottom plate at intervals, each clamping unit comprises at least one clamping seat, each clamping seat comprises an adjustable supporting table, a fixed supporting table and a pressing plate, and the height of each fixed supporting table is smaller than the maximum height of the corresponding adjustable supporting table and larger than the minimum height of the corresponding adjustable supporting table; the pressing plate can move relative to the adjustable supporting table and the fixed supporting table and is used for being matched with the adjustable supporting table or the fixed supporting table so as to clamp a box body lower bottom plate with the back face facing upwards or the front face facing upwards. When the back face of the lower bottom plate of the box body is machined, the flatness of the lower surface is low, the upper surface is kept in a horizontal state through height adjustment of the adjustable supporting tables, machining is convenient, when the front face of the lower bottom plate of the box body is machined, the flatness of the lower surface is high, the lower surface is placed on the fixed supporting table, and switching of front face clamping and back face clamping can be rapidly conducted.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing auxiliary equipment, and in particular to an auxiliary clamping device used for milling a bottom plate of a large box. Background Art

[0002] The lower bottom surface of a certain large box is a large weak-rigidity flat welded structural component. The large weak-rigidity flat welded structural component is overall long, flat, and heavy. It is mainly welded from long special-shaped steel pipes, plates, castings, and forgings. The overall structural rigidity is insufficient. The front side is a guide rail assembly with low flatness, which mainly carries, positions, and guides the projectiles. The back side is mainly the installation end face of a certain large box and two positioning pin holes, which have a higher flatness.

[0003] In the prior art, the bottom plate of the box is usually fixed by means of a screw pressure plate after being checked and aligned first, one side is processed first, then it is turned over and checked again, and then pressed by a screw pressure plate before processing the other side.

[0004] However, the method of fixing the bottom plate of the box body by pressing with a screw pressure plate requires repositioning after processing one side. Since the front and back sides of the bottom plate of the box body need to be milled, multiple positioning and clamping operations are required. Relying on the method of using a gauge for alignment consumes a lot of time during the operation, which reduces production efficiency. Summary of the invention

[0005] The present application provides an auxiliary clamping device for milling the lower bottom plate of a large box, which can solve the problem that the lower bottom plate of the box is fixed by a screw pressure plate in the prior art, and needs to be repositioned after processing one side. Since the front and back sides of the lower bottom plate of the box need to be milled, multiple positioning and clamping operations are required. Relying on the method of using a meter to align will consume a lot of time during the operation, and there is a problem of reduced production efficiency.

[0006] In a first aspect, an embodiment of the present application provides an auxiliary clamping device for milling a bottom plate of a large box, comprising:

[0007] Install the base plate;

[0008] Two groups of clamping units are arranged at intervals along the width direction of the installation base plate, and the clamping unit includes at least one clamping seat, and the clamping seat includes an adjustable support platform, a fixed support platform and a pressure holding plate. The height of the fixed support platform is less than the maximum height of the adjustable support platform and greater than the minimum height of the adjustable support platform. The pressure holding plate can move relative to the adjustable support platform and the fixed support platform, and is used to cooperate with the adjustable support platform or the fixed support platform to clamp the lower base plate of the box with the reverse side facing up or the front side facing up.

[0009] In one embodiment, the fixed support platform includes a supporting portion and a mounting portion, the height of the supporting portion is lower than the mounting portion, a guide rail is provided on the mounting portion, the guide rail is arranged along the length direction of the mounting base plate, the supporting portion and the adjustable support platform are arranged along the guide rail, and are both located on the side of the guide rail close to the center of the mounting base plate, the holding plate is slidably arranged on the guide rail, and one end extends toward the supporting portion or the adjustable support platform.

[0010] In one embodiment, a T-shaped slot is provided in the guide rail, and the holding plate is arranged on the guide rail through a sliding assembly, and the sliding assembly includes:

[0011] A sliding nut base, which matches the shape of the T-slot and is slidably disposed in the T-slot;

[0012] A double-headed screw, one end of which is connected to the sliding nut base, and the holding plate is sleeved on the double-headed screw;

[0013] A clamping nut is arranged at the other end of the double-headed screw and is used to cooperate with the holding plate to clamp the lower bottom plate of the box body.

[0014] In one embodiment, the holding plate is provided with a long hole perpendicular to the guide rail, the long hole is used for the double-headed screw to pass through, and the holding plate can adjust the length extending toward the support part or the adjustable support platform by adjusting the position of the double-headed screw in the long hole.

[0015] In one embodiment, the adjustable support platform comprises:

[0016] A mounting rod, which is arranged on the mounting base plate;

[0017] an adjusting nut, which is disposed on the mounting rod and is threadedly connected to the mounting rod;

[0018] A support head is arranged on the upper side of the adjusting nut and is used to cooperate with the holding plate to clamp the lower bottom plate of the box body.

[0019] In one embodiment, the support head includes a ball head and a nylon foot cup, the ball head is connected to the adjusting nut, and the nylon foot cup is arranged on the ball head.

[0020] In one embodiment, a support mechanism is further included, wherein the support mechanism includes a plurality of support units spaced apart along the length direction of the mounting base plate, and the support units include:

[0021] A guide groove is provided on the mounting base plate, and the guide groove is provided along the width direction of the mounting base plate;

[0022] Two sliding blocks are both slidably disposed in the guide groove, and the two sliding blocks are provided with movably connected supporting top plates;

[0023] A driving threaded rod passes through the two sliders, and the driving threaded rod is provided with positive and negative thread segments corresponding to the two sliders respectively. When the driving threaded rod rotates, the two sliders approach or move away from each other, driving the supporting top plate to rise to support the lower bottom plate of the box body or to descend and separate from the lower bottom plate of the box body.

[0024] In one embodiment, the two sliders are connected by two groups of connecting rod mechanisms spaced apart along the length direction of the mounting base plate, the connecting rod mechanism includes two connecting rods, each of which is provided with a first mounting through hole and a second mounting through hole at both ends, the first mounting through holes of the two connecting rods coincide with each other, the connecting rod is rotatably connected to the slider through the second mounting through hole, a connecting boss is provided under the support top plate, the connecting boss is provided with a first connecting through hole in the same axial direction as the first mounting through hole, and a fixing through hole perpendicular to the first connecting through hole, the support top plate is connected to the connecting rod mechanism via a connecting shaft passing through the first connecting through hole and the first mounting through hole, and the fixing through hole is used to allow a fixing pin to pass through and fix the position of the connecting shaft in the first connecting through hole.

[0025] In one embodiment, it further comprises a plurality of correction units spaced apart along the length direction of the mounting base plate, wherein the correction unit comprises two correction seats spaced apart along the width direction of the mounting base plate, and the correction seats comprise:

[0026] A base, which is arranged on the mounting bottom plate, and the base is provided with a threaded hole;

[0027] An adjusting threaded rod is arranged along the width direction of the mounting base plate and passes through the threaded hole. An abutment joint is provided at one end of the adjusting threaded rod facing the center of the mounting base plate, and a rotating handwheel is provided at the other end. The abutment joint is used to abut against the lower base plate of the box body. The rotating handwheel is used to rotate the adjusting threaded rod to adjust the length of the adjusting threaded rod extending out of the threaded hole to adjust the position of the lower base plate of the box body.

[0028] In one embodiment, both ends of the mounting base plate are provided with a centering device, and the centering device comprises:

[0029] A centering base connected to the mounting base plate;

[0030] A scribing needle is provided with a through slot, and the scribing needle is fixed on the centering base by a screw nut passing through the through slot. The scribing needle faces the center line of the mounting base perpendicular to the width direction, and is used to locate the position of the lower base plate of the box body on the mounting base plate.

[0031] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0032] When manufacturing the auxiliary clamping device for milling the lower base plate of a large box, two groups of clamping units are arranged on the installation base plate at intervals along the width direction of the installation base plate. The clamping unit includes at least one clamping seat, and the clamping seat includes an adjustable support table, a fixed support table and a pressure plate. The height of the fixed support table is less than the maximum height of the adjustable support table and greater than the minimum height of the adjustable support table. The pressure plate can move relative to the adjustable support table and the fixed support table, and is used to cooperate with the adjustable support table or the fixed support table to clamp the lower base plate of the box with the reverse side facing up or the front side facing up. When processing the back side of the lower bottom plate of the box, the back side of the lower bottom plate of the box faces upward, and the flatness of the lower surface is low. Through the height adjustment of multiple adjustable support tables, the upper surface is kept in a horizontal state, which is convenient for processing. When processing the front side of the lower bottom plate of the box, the front side of the lower bottom plate of the box faces upward, and the flatness of the lower surface is high. It can be placed on a fixed support table, and the front and back clamping can be quickly switched. This solves the problem of fixing the lower bottom plate of the box by clamping with a screw pressure plate in the prior art, which requires repositioning after processing one side. Since the front and back sides of the lower bottom plate of the box need to be milled, multiple positioning and clamping are required. Relying on the method of using a meter to align will consume a lot of time during the operation, and there is a problem of reduced production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 The present invention is a schematic structural diagram of an auxiliary clamping device for milling a bottom plate of a large box according to an embodiment of the present invention.

[0035] Figure 2 The present invention is a schematic structural diagram of a bottom plate installed in an auxiliary clamping device embodiment for milling a bottom plate of a large box.

[0036] Figure 3 The present invention is a schematic structural diagram of a square pin bottom plate positioning mechanism in an auxiliary clamping device embodiment for milling a bottom plate of a large box.

[0037] Figure 4 The present invention is a schematic structural diagram of a round pin bottom plate positioning mechanism in an embodiment of an auxiliary clamping device for milling a bottom plate of a large box.

[0038] Figure 5The present invention is a schematic structural diagram of a pre-positioning mechanism in an embodiment of an auxiliary clamping device for milling a lower bottom plate of a large box.

[0039] Figure 6 The present invention is a schematic structural diagram of a centering device in an embodiment of an auxiliary clamping device for milling a lower bottom plate of a large box.

[0040] Figure 7 The present invention is a schematic structural diagram of a marking needle in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box.

[0041] Figure 8 The present invention is a schematic structural diagram of a square pin positioning mechanism in an auxiliary clamping device embodiment for milling a lower bottom plate of a large box.

[0042] Fig. 9 The present invention is a schematic structural diagram of a round pin positioning mechanism in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box.

[0043] Fig.10 It is a schematic structural diagram of a deviation-correcting seat in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box according to the present invention.

[0044] Fig.11 It is a schematic structural diagram of an abutment joint in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box according to the present invention.

[0045] Fig.12 The present invention is a schematic structural diagram of a clamping seat in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box.

[0046] Fig.13 The present invention is a schematic structural diagram of an adjustable support platform in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box.

[0047] Fig.14 The present invention is a schematic structural diagram of a support member in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box.

[0048] Fig.15 The present invention is a schematic structural diagram of a supporting mechanism in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box.

[0049] Fig.16 The exploded structural schematic diagram of the supporting mechanism in an embodiment of the auxiliary clamping device for milling the lower base plate of a large box according to the present invention.

[0050] Fig.17 The present invention is a schematic structural diagram of a slide block in an embodiment of an auxiliary clamping device for milling a bottom plate of a large box.

[0051] Fig.18 The present invention is a schematic structural diagram of a driving rotating rod in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box.

[0052] Fig.19 The figure is a schematic structural diagram of a T-type sleeve in an embodiment of an auxiliary clamping device for milling a lower bottom plate of a large box according to the present invention.

[0053] Fig. 20 The present invention is a schematic structural diagram of a supporting top plate in an embodiment of an auxiliary clamping device for milling a lower bottom plate of a large box.

[0054] Fig.21 The figure is a schematic diagram of the structure of a connecting rod in an embodiment of an auxiliary clamping device for milling a lower base plate of a large box according to the present invention.

[0055] In the figure: 1. Mounting base plate; 11. Rectangular tube welding frame; 111. Bottom contact block; 112. Contact plate; 113. Lifting column; 12. Placement plate; 2. Clamping seat; 21. Adjustable support platform; 211. Mounting rod; 212. Adjusting nut; 213. Support head; 2131. Ball head; 2132. Nylon foot cup; 22. Fixed support platform; 221. Support part; 222. Mounting part; 23. Holding plate; 231. Long hole; 24. Guide rail; 241. T-slot; 242. Placement slot; 25. Sliding assembly ; 251, sliding nut base; 252, double-headed screw; 253, pressing nut; 26, mounting seat; 3, supporting mechanism; 31, guide groove; 311, supporting inclined surface; 312, limiting long hole; 32, sliding block; 321, second connecting through hole; 322, limiting screw hole; 323, matching shaft; 324, matching inclined surface; 325, limiting screw; 33, supporting top plate; 331, connecting boss; 3311, first connecting through hole; 3312, fixing through hole; 332, rubber layer; 34, connecting shaft; 35, connecting rod Mechanism; 351, connecting rod; 3511, first mounting through hole; 3512, second mounting through hole; 36, driving threaded rod; 361, driving rotating rod; 3611, step shaft; 3612, step shaft with keyway; 3613, T-type sleeve; 3614, fixing sleeve; 362, rotating rod connecting sleeve; 37, driving rod fixing seat; 38, fixing nut; 39, rotating wheel; 4, deviation correction seat; 41, base; 42, adjusting threaded rod; 43, butt joint; 431, deviation correction ball head; 432, deviation correction nylon foot cup; 44, rotating Hand wheel; 45, first limiting nut; 46, second limiting nut; 5, centering device; 51, centering base; 52, marking needle; 521, through groove; 6, pre-positioning mechanism; 61, inclined plane; 7, positioning mechanism; 71, positioning base; 72, positioning pin; 73, fixing bolt; 8, support member; 9, bottom plate positioning mechanism; 91, T-nut base; 92, bottom plate positioning base; 93, bottom plate double-headed screw; 94, washer; 95, bottom plate nut; 96, bottom plate positioning pin; 97, threaded top screw; 98, bottom plate mounting block. DETAILED DESCRIPTION

[0056] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0057] An embodiment of the present application provides an auxiliary clamping device for milling the lower base plate of a large box, which can solve the problem of fixing the lower base plate of the box by clamping with a screw pressure plate in the prior art, which requires repositioning after processing one side. Since the front and back sides of the lower base plate of the box need to be milled, multiple positioning and clamping operations are required. Relying on the method of using a gauge for alignment consumes a lot of time during the operation, which reduces production efficiency.

[0058] like Figure 1 and Fig.12 As shown, the present application provides an auxiliary clamping device for milling the bottom plate of a large box, which includes:

[0059] Install the base plate 1;

[0060] Two groups of clamping units are arranged at intervals along the width direction of the installation base plate 1, and the clamping unit includes at least one clamping seat 2. The clamping seat 2 includes an adjustable support platform 21, a fixed support platform 22 and a holding plate 23. The height of the fixed support platform 22 is less than the maximum height of the adjustable support platform 21 and greater than the minimum height of the adjustable support platform 21. The holding plate 23 can move relative to the adjustable support platform 21 and the fixed support platform 22, and is used to cooperate with the adjustable support platform 21 or the fixed support platform 22 to clamp the lower base plate of the box with the reverse side facing up or the front side facing up.

[0061] When manufacturing the auxiliary clamping device for milling the lower base plate of a large box, two groups of clamping units are arranged on the installation base plate 1 at intervals along the width direction of the installation base plate 1. The clamping unit includes at least one clamping seat 2. The clamping seat 2 includes an adjustable support platform 21, a fixed support platform 22 and a holding plate 23. The height of the fixed support platform 22 is less than the maximum height of the adjustable support platform 21 and greater than the minimum height of the adjustable support platform 21. The holding plate 23 can move relative to the adjustable support platform 21 and the fixed support platform 22, and is used to cooperate with the adjustable support platform 21 or the fixed support platform 22 to clamp the lower base plate of the box with the reverse side facing up or the front side facing up. When processing the back side of the lower bottom plate of the box, the back side of the lower bottom plate of the box faces upward, and the flatness of the lower surface is low. Through the height adjustment of multiple adjustable support platforms 21, the upper surface is kept in a horizontal state, which is convenient for processing. When processing the front side of the lower bottom plate of the box, the front side of the lower bottom plate of the box faces upward, and the flatness of the lower surface is high. It can be placed on the fixed support platform 22, and the front and back clamping can be quickly switched. This solves the problem of fixing the lower bottom plate of the box by clamping with a screw pressure plate in the prior art, which requires repositioning after processing one side. Since the front and back sides of the lower bottom plate of the box need to be milled, multiple positioning and clamping are required. Relying on the method of using a meter to align will consume a lot of time during the operation, and there is a problem of reduced production efficiency.

[0062] In this example, clamping seats 2 are symmetrically provided on both sides of the mounting base plate 1 .

[0063] like Figure 1 and Fig.14 As shown, in this example, a plurality of support members 8 are provided on the mounting base plate 1, and the support members 8 have the same height as the fixed support platform 22, and are used to provide intermediate position support for the reverse side with better flatness that has been processed.

[0064] like Fig.12 As shown, in this example, the clamping seat 2 further includes a mounting seat 26 , on which an adjustable support platform 21 and a fixed support platform 22 are provided.

[0065] like Figure 1 and Figure 2 As shown, in this example, the mounting base plate 1 includes a rectangular tube welding frame 11 and a placement plate 12 arranged in the rectangular tube welding frame 11. The lower side of the rectangular tube welding frame 11 is provided with a bottom contact block 111 arranged along the circumferential space and a contact plate 112 arranged along the circumferential space to ensure the stability of the placement of the mounting base plate 1. The side is provided with a lifting column 113 arranged along the circumferential space to facilitate overall lifting.

[0066] like Figure 1 and Figure 5 As shown, in this example, it also includes a plurality of pre-positioning mechanisms 6, wherein every two pre-positioning mechanisms 6 are spaced apart along the width direction of the mounting base plate 1 and are located on both sides of the mounting base plate 1, and a slope 61 is provided on the side facing the mounting base plate 1, and another pre-positioning mechanism 6 is arranged at the end of the mounting base plate 1 in the length direction, for quickly placing and pre-positioning the lower base plate of the box.

[0067] like Figure 1 , Figure 8 and Fig. 9 As shown, in this example, a positioning mechanism 7 is also included. The positioning mechanism 7 includes two positioning pin structures spaced apart along the length direction of the mounting base 1. The positioning pin structure includes a positioning base 71, a positioning pin 72, and a fixing bolt 73. The positioning pin 72 is arranged on the upper side of the positioning base 71 and is used to position the reverse side of the lower base of the box. The fixing bolt 73 is used to lock the relative position of the positioning pin 72 and the positioning base 71. In essence, the positioning pin 72 is located in the hole of the positioning base 71, and the length of the positioning pin 72 extending out of the positioning base 71 is limited by the fixing bolt 73. The two positioning pins 72 are respectively a diamond pin and a cylindrical pin.

[0068] like Figure 2 , Figure 3 and Figure 4As shown, in this example, a base plate positioning mechanism 9 is detachably provided on the lower side of both ends of the installation base plate 1 along the length direction, and the base plate positioning mechanism 9 includes multiple T-nut bases 91, a base plate positioning base 92, multiple base plate double-headed screws 93, washers 94 and base plate nuts 95 arranged on the base plate double-headed screws 93, base plate positioning pins 96 and threaded top screws 97 arranged on the base plate mounting block 98, the T-nut base 91 is used to be set in the T-slot of the machine tool workbench, the base plate positioning base 92 is detachably connected to the T-nut base 91, the base plate positioning base 92 is provided with multiple base plate double-headed screws 93 and a base plate mounting block 98, and the base plate mounting block 98 is provided with a base plate positioning pin 96 and a threaded top screw 97, which facilitates the positioning of the installation base plate 1.

[0069] like Fig.12 As shown, in an optional embodiment, the fixed support platform 22 includes a support portion 221 and a mounting portion 222, the support portion 221 is lower in height than the mounting portion 222, a guide rail 24 is provided on the mounting portion 222, the guide rail 24 is arranged along the length direction of the mounting base plate 1, the support portion 221 and the adjustable support platform 21 are arranged along the guide rail 24, and are both located on one side of the guide rail 24 close to the center of the mounting base plate 1, the holding plate 23 is slidably arranged on the guide rail 24, and one end extends toward the support portion 221 or the adjustable support platform 21.

[0070] In this embodiment, the fixed support platform 22 includes a support portion 221 and an installation portion 222. The height of the support portion 221 is lower than that of the installation portion 222. A guide rail 24 is provided on the installation portion 222. The guide rail 24 is arranged along the length direction of the installation base plate 1. The support portion 221 and the adjustable support platform 21 are arranged along the guide rail 24, and are both located on the side of the guide rail 24 close to the center of the installation base plate 1. The holding plate 23 is slidably arranged on the guide rail 24, and one end extends toward the support portion 221 or the adjustable support platform 21. The setting method of the clamping seat 2 is specifically described, and the structure is simple and easy to manufacture.

[0071] In this example, a placement groove 242 is provided on the guide rail 24, and the holding plate 23 can be rotated into the placement groove 242 when not in use.

[0072] like Fig.12 As shown, in an optional embodiment, a T-shaped slot 241 is provided in the guide rail 24, and the holding plate 23 is arranged on the guide rail 24 through a sliding assembly 25, and the sliding assembly 25 includes:

[0073] A sliding nut base 251, which matches the shape of the T-slot 241 and is slidably disposed in the T-slot 241;

[0074] A double-headed screw 252, one end of which is connected to the sliding nut base 251, and the holding plate 23 is sleeved on the double-headed screw 252;

[0075] The clamping nut 253 is arranged at the other end of the double-headed screw 252 and is used to cooperate with the holding plate 23 to clamp the lower bottom plate of the box body.

[0076] In this embodiment, a T-slot 241 is provided in the guide rail 24, and the holding plate 23 is set on the guide rail 24 through a sliding component 25. The sliding component 25 includes a sliding nut base 251, a stud screw 252 and a clamping nut 253, wherein the sliding nut base 251 matches the shape of the T-slot 241 and is slidably arranged in the T-slot 241, one end of the stud screw 252 is connected to the sliding nut base 251, the holding plate 23 is sleeved on the stud screw 252, and the clamping nut 253 is arranged at the other end of the stud screw 252, which is used to cooperate with the holding plate 23 to press the lower bottom plate of the box body. The structure is simple and convenient for sliding and clamping the holding plate 23.

[0077] like Fig.12 As shown, in an optional embodiment, a long hole 231 is provided on the holding plate 23 along a direction perpendicular to the guide rail 24, and the long hole 231 is used for the double-headed screw 252 to pass through. The length of the holding plate 23 extending toward the support portion 221 or the adjustable support platform 21 can be adjusted by adjusting the position of the double-headed screw 252 in the long hole 231.

[0078] In this embodiment, a long hole 231 is provided on the holding plate 23 which is perpendicular to the guide rail 24. The long hole 231 is used for the double-headed screw 252 to pass through. The length of the holding plate 23 extending toward the support portion 221 or the adjustable support platform 21 can be adjusted by adjusting the position of the double-headed screw 252 in the long hole 231. The structure is simple and the length of the holding plate 23 extending therefrom can be adjusted conveniently.

[0079] like Fig.12 and Fig.13 As shown, in an optional embodiment, the adjustable support platform 21 includes:

[0080] A mounting rod 211, which is arranged on the mounting base plate 1;

[0081] An adjusting nut 212, which is disposed on the mounting rod 211 and is threadedly connected to the mounting rod 211;

[0082] The support head 213 is arranged on the upper side of the adjusting nut 212 and is used to cooperate with the holding plate 23 to clamp the lower bottom plate of the box body.

[0083] In this embodiment, the specific structure of the adjustable support platform 21 is described. The adjustable support platform 21 includes a mounting rod 211, an adjusting nut 212 and a support head 213, wherein the mounting rod 211 is arranged on the mounting base plate 1, the adjusting nut 212 is arranged on the mounting rod 211 and is threadedly connected to the mounting rod 211, and the support head 213 is arranged on the upper side of the adjusting nut 212, and is used to cooperate with the holding plate 23 to clamp the lower base plate of the box body. By adjusting the relative position of the adjusting nut 212 and the mounting rod 211, the height of the support head 213 is adjusted, and the adjustment process is convenient and quick.

[0084] like Fig.13 As shown, in an optional embodiment, the support head 213 includes a ball head 2131 and a nylon foot cup 2132 , the ball head 2131 is connected to the adjusting nut 212 , and the nylon foot cup 2132 is disposed on the ball head 2131 .

[0085] In this embodiment, the specific structure of the support head 213 is described. The support head 213 includes a ball head 2131 and a nylon foot cup 2132. The ball head 2131 is connected to the adjusting nut 212. The nylon foot cup 2132 is arranged on the ball head 2131 to provide better clamping force and reduce vibration during processing.

[0086] like Figure 1 , Fig.15 and Fig.16 As shown, in an optional embodiment, it further includes a support mechanism 3, the support mechanism 3 includes a plurality of support units spaced apart along the length direction of the installation base plate 1, and the support units include:

[0087] A guide groove 31 is provided on the mounting base plate 1, and the guide groove 31 is provided along the width direction of the mounting base plate 1;

[0088] Two sliders 32 are both slidably disposed in the guide groove 31, and a movably connected supporting top plate 33 is disposed on the two sliders 32;

[0089] The driving threaded rod 36 passes through the two sliders 32. The driving threaded rod 36 is provided with positive and negative thread sections corresponding to the two sliders 32 respectively. When the driving threaded rod 36 rotates, the two sliders 32 move closer to or away from each other, driving the supporting top plate 33 to rise to support the lower bottom plate of the box body or to descend and separate from the lower bottom plate of the box body.

[0090] In this embodiment, the auxiliary clamping device for milling the lower base plate of a large box also includes a supporting mechanism 3, which includes a plurality of supporting units arranged at intervals along the length direction of the mounting base plate 1, and the supporting unit includes a guide groove 31, two sliders 32 and a driving threaded rod 36, wherein the guide groove 31 is arranged on the mounting base plate 1, and the guide groove 31 is arranged along the width direction of the mounting base plate 1, and the two sliders 32 can be slidably arranged in the guide groove 31, and a movably connected supporting top plate 33 is provided on the two sliders 32, and a driving threaded rod 36 is provided with positive and negative thread sections corresponding to the two sliders 32 respectively. When the driving threaded rod 36 rotates, the two sliders 32 approach or move away from each other, driving the supporting top plate 33 to rise to support the lower base plate of the box or to descend and separate from the lower base plate of the box, thereby avoiding the natural bending and deformation of the middle position of the lower base plate of the box under the action of gravity, thereby improving the stability of processing.

[0091] like Fig. 20 As shown, in this example, a rubber layer 332 is provided on the support top plate 33, which can effectively reduce vibration during the processing.

[0092] like Fig.15 , Fig.16 and Fig.18 As shown, in this example, two spaced apart drive rod fixing seats 37 are located at both ends of the guide groove 31, and two fixing sleeves 3614 are provided on the drive threaded rod 36. The drive threaded rod 36 includes two drive rotating rods 361 and a rotating rod connecting sleeve 362. One end of the drive rotating rod 361 is a step shaft 3611, and the step shaft 3611 passes through the fixing sleeve 3614 and the center hole of the drive rod fixing seat 37. The fixing sleeve 3614 is fixed to the drive rod fixing seat 37 by screws. The other end of the drive rotating rod 361 is a step shaft 3612 with a keyway, and the rotating rod connecting sleeve 362 connects the two step shafts 3612 with keyways. The middle diameter section of the step shaft 3611 is provided with a rotating wheel 39, and the small diameter section is provided with a fixing nut 38.

[0093] like Fig.16 , Fig.17 , Fig.19 and Fig.21 As shown, in this example, the slider 32 is provided with a second connecting through hole 321, a limit screw hole 322, a matching shaft 323 and a matching inclined surface 324, the lower bottom surface of the guide groove 31 is provided with a supporting inclined surface 311 matching the matching inclined surface 324, and a side limit long hole 312, and the limit screw 325 passes through the limit long hole 312 and is fixed in the limit screw hole 322, so that the movement of the slider 32 in the guide groove 31 is more stable, the second connecting through hole 321 is used for the driving threaded rod 36 to pass through, the matching shaft 323 is rotatably connected with the second mounting through hole 3512, the T-sleeve 3613 is sleeved on the driving rotating rod 361, and the T-sleeve 3613 is fixed to the slider 32 by screws.

[0094] like Fig.16 , Fig. 20 and Fig.21 As shown, in an optional embodiment, the two sliders 32 are connected by two groups of connecting rod mechanisms 35 arranged at intervals along the length direction of the mounting base plate 1, the connecting rod mechanism 35 includes two connecting rods 351, and the two ends of the connecting rod 351 are respectively provided with a first mounting through hole 3511 and a second mounting through hole 3512, the first mounting through holes 3511 of the two connecting rods 351 coincide with each other, and the connecting rod 351 is rotatably connected to the slider 32 through the second mounting through hole 3512, a connecting boss 331 is provided under the support top plate 33, and the connecting boss 331 is provided with a first connecting through hole 3311 having the same axial direction as the first mounting through hole 3511, and a fixing through hole 3312 perpendicular to the first connecting through hole 3311, the support top plate 33 is connected to the connecting rod mechanism 35 by a connecting shaft 34 passing through the first connecting through hole 3311 and the first mounting through hole 3511, and the fixing through hole 3312 is used to allow the fixing pin shaft to pass through the fixed connecting shaft 34 in the first connecting through hole 3311.

[0095] In this embodiment, the two sliders 32 are connected by two groups of connecting rod mechanisms 35 arranged at intervals along the length direction of the mounting base plate 1. The connecting rod mechanism 35 includes two connecting rods 351. The two ends of the connecting rod 351 are respectively provided with a first mounting through hole 3511 and a second mounting through hole 3512. The first mounting through holes 3511 of the two connecting rods 351 coincide with each other. The connecting rod 351 is rotatably connected to the slider 32 through the second mounting through hole 3512. A connecting boss 331 is provided below the support top plate 33. The connecting boss 331 is provided with a first connecting through hole 3311 having the same axial direction as the first mounting through hole 3511, and a fixing through hole 3312 perpendicular to the first connecting through hole 3311. The support top plate 33 is connected to the connecting rod mechanism 35 by a connecting shaft 34 passing through the first connecting through hole 3311 and the first mounting through hole 3511. The fixing through hole 3312 is used to allow the fixing pin shaft to pass through the position of the fixing connecting shaft 34 in the first connecting through hole 3311. The structure is simple, the manufacturing is convenient, and the supporting process is smooth.

[0096] like Figure 1 and Fig.10 As shown, in an optional embodiment, it also includes a plurality of correction units spaced apart along the length direction of the installation base plate 1, the correction unit includes two correction seats 4 spaced apart along the width direction of the installation base plate 1, and the correction seat 4 includes:

[0097] A base 41 is disposed on the mounting base plate 1, and a threaded hole is provided on the base 41;

[0098] An adjusting threaded rod 42 is arranged along the width direction of the mounting base plate 1 and passes through a threaded hole. An abutment joint 43 is provided at one end of the adjusting threaded rod 42 facing the center of the mounting base plate 1, and a rotating hand wheel 44 is provided at the other end. The abutment joint 43 is used to abut against the lower base plate of the box. The rotating hand wheel 44 is used to rotate the adjusting threaded rod 42 to adjust the length of the adjusting threaded rod 42 extending out of the threaded hole to adjust the position of the lower base plate of the box.

[0099] In this embodiment, the auxiliary clamping device for milling the lower base plate of a large box also includes a plurality of correction units arranged at intervals along the length direction of the mounting base plate 1, the correction units include two correction seats 4 arranged at intervals along the width direction of the mounting base plate 1, the correction seat 4 includes a base 41 and an adjusting threaded rod 42, wherein the base 41 is arranged on the mounting base plate 1, a threaded hole is provided on the base 41, the adjusting threaded rod 42 is arranged along the width direction of the mounting base plate 1 and passes through the threaded hole, an abutment joint 43 is provided at one end of the adjusting threaded rod 42 facing the center of the mounting base plate 1, and a rotating hand wheel 44 is provided at the other end, the abutment joint 43 is used to abut against the lower base plate of the box, and the rotating hand wheel 44 is used to rotate the adjusting threaded rod 42 to adjust the length of the adjusting threaded rod 42 extending out of the threaded hole, so as to adjust the position of the lower base plate of the box, thereby facilitating the adjustment of the position of the lower base plate of the box.

[0100] like Fig.11 As shown, in this example, the abutment joint 43 includes a correcting ball head 431 and a correcting nylon foot cup 432. The correcting ball head 431 is arranged on the adjusting threaded rod 42, and the correcting nylon foot cup 432 is arranged on the correcting ball head 431, which is used to abut against the lower bottom plate of the box body, thereby reducing vibration during processing.

[0101] like Fig.10 and Fig.11 As shown, in this example, the adjusting threaded rod 42 is a stepped rod, which is divided into a small diameter section, a middle diameter section and a large diameter section. The small diameter section is provided with a first limiting nut 45, the large diameter section passes through a threaded hole, and a second limiting nut 46 is provided on the part passing through the threaded hole, and a rotating hand wheel 44 is installed on the middle diameter section, and the movement range of the adjusting threaded rod 42 is limited by the first limiting nut 45 and the second limiting nut 46.

[0102] like Figure 1 , Figure 6 and Figure 7 As shown, in an optional embodiment, both ends of the mounting base plate 1 are provided with a centering device 5, and the centering device 5 includes:

[0103] A centering base 51 connected to the mounting base plate 1;

[0104] The marking needle 52 is provided with a through slot 521, and the marking needle 52 is fixed on the centering base 51 by a screw nut passing through the through slot 521. The marking needle 52 faces the center line of the mounting base 1 perpendicular to the width direction, and is used to locate the position of the lower base plate of the box on the mounting base 1.

[0105] In this embodiment, a centering device 5 is provided at both ends of the mounting base 1, and the centering device 5 includes a centering base 51 and a marking needle 52, wherein the centering base 51 is connected to the mounting base 1, and a through groove 521 is provided on the marking needle 52. The marking needle 52 is fixed to the centering base 51 by a screw nut passing through the through groove 521, and the marking needle 52 is facing the center line of the mounting base 1 perpendicular to the width direction, and is used to locate the position of the lower base plate of the box on the mounting base 1, so as to facilitate finding the straight line and achieve accurate positioning.

[0106] In this example, the screw nut is a butterfly nut and a split double-start screw.

[0107] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0108] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0109] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An auxiliary clamping device for milling the bottom plate of a large box, characterized in that: include: Installing the base plate (1); Two groups of clamping units are arranged at intervals along the width direction of the installation base plate (1), and the clamping units include at least one clamping seat (2). The clamping seat (2) includes an adjustable support platform (21), a fixed support platform (22) and a holding plate (23). The height of the fixed support platform (22) is less than the maximum height of the adjustable support platform (21) and greater than the minimum height of the adjustable support platform (21). The holding plate (23) can move relative to the adjustable support platform (21) and the fixed support platform (22) and is used to cooperate with the adjustable support platform (21) or the fixed support platform (22) to clamp the lower base plate of the box body with the reverse side facing upward or the front side facing upward.

2. An auxiliary clamping device for milling the bottom plate of a large box as claimed in claim 1, characterized in that: The fixed support platform (22) comprises a support portion (221) and a mounting portion (222); the support portion (221) is lower in height than the mounting portion (222); a guide rail (24) is provided on the mounting portion (222); the guide rail (24) is arranged along the length direction of the mounting base plate (1); the support portion (221) and the adjustable support platform (21) are arranged along the guide rail (24) and are both located on a side of the guide rail (24) close to the center of the mounting base plate (1); the holding plate (23) is slidably arranged on the guide rail (24) and one end of the holding plate extends toward the support portion (221) or the adjustable support platform (21).

3. The auxiliary clamping device for milling the bottom plate of a large box as claimed in claim 2, characterized in that: The guide rail (24) is provided with a T-shaped slot (241), and the holding plate (23) is arranged on the guide rail (24) via a sliding assembly (25), and the sliding assembly (25) comprises: A sliding nut base (251) which matches the shape of the T-slot (241) and is slidably disposed in the T-slot (241); A double-headed screw rod (252), one end of which is connected to the sliding nut base (251), and the holding plate (23) is sleeved on the double-headed screw rod (252); A clamping nut (253) is arranged at the other end of the double-headed screw (252) and is used to cooperate with the holding plate (23) to clamp the lower bottom plate of the box body.

4. An auxiliary clamping device for milling the bottom plate of a large box as claimed in claim 3, characterized in that: The holding plate (23) is provided with a long hole (231) perpendicular to the guide rail (24), and the long hole (231) is used to allow the double-headed screw (252) to pass through. The holding plate (23) can adjust the length of the extension toward the support portion (221) or the adjustable support platform (21) by adjusting the position of the double-headed screw (252) in the long hole (231).

5. The auxiliary clamping device for milling the bottom plate of a large box as claimed in claim 1, characterized in that: The adjustable support platform (21) comprises: A mounting rod (211) disposed on the mounting base plate (1); an adjusting nut (212), which is disposed on the mounting rod (211) and is threadedly connected to the mounting rod (211); A support head (213) is arranged on the upper side of the adjusting nut (212) and is used to cooperate with the holding plate (23) to clamp the lower bottom plate of the box body.

6. The auxiliary clamping device for milling the bottom plate of a large box as claimed in claim 5, characterized in that: The support head (213) comprises a ball head (2131) and a nylon foot cup (2132); the ball head (2131) is connected to the adjustment nut (212); and the nylon foot cup (2132) is arranged on the ball head (2131).

7. The auxiliary clamping device for milling the bottom plate of a large box as claimed in claim 1, characterized in that: It also comprises a support mechanism (3), the support mechanism (3) comprising a plurality of support units arranged at intervals along the length direction of the installation base plate (1), the support units comprising: A guide groove (31) is arranged on the installation base plate (1), and the guide groove (31) is arranged along the width direction of the installation base plate (1); Two sliders (32) are both slidably disposed in the guide groove (31), and the two sliders (32) are provided with a movably connected supporting top plate (33); A driving threaded rod (36) passes through the two sliders (32), and the driving threaded rod (36) is provided with positive and negative thread segments corresponding to the two sliders (32) respectively. When the driving threaded rod (36) rotates, the two sliders (32) move closer to or farther away from each other, driving the supporting top plate (33) to rise to support the lower bottom plate of the box body, or to descend to separate from the lower bottom plate of the box body.

8. The auxiliary clamping device for milling the bottom plate of a large box as claimed in claim 7, characterized in that: The two sliders (32) are connected by two groups of connecting rod mechanisms (35) arranged at intervals along the length direction of the mounting base plate (1); the connecting rod mechanism (35) comprises two connecting rods (351); two ends of the connecting rods (351) are respectively provided with a first mounting through hole (3511) and a second mounting through hole (3512); the first mounting through holes (3511) of the two connecting rods (351) overlap; the connecting rod (351) is rotatably connected to the slider (32) via the second mounting through hole (3512); a connecting boss (331) is provided below the supporting top plate (33) The connecting boss (331) is provided with a first connecting through hole (3311) having the same axial direction as the first mounting through hole (3511), and a fixing through hole (3312) perpendicular to the first connecting through hole (3311); the supporting top plate (33) is connected to the connecting rod mechanism (35) via a connecting shaft (34) passing through the first connecting through hole (3311) and the first mounting through hole (3511); the fixing through hole (3312) is used to allow a fixing pin to pass through and fix the position of the connecting shaft (34) in the first connecting through hole (3311).

9. The auxiliary clamping device for milling the bottom plate of a large box as claimed in claim 1, characterized in that: It also comprises a plurality of deflection correction units arranged at intervals along the length direction of the installation base plate (1), wherein the deflection correction units comprise two deflection correction seats (4) arranged at intervals along the width direction of the installation base plate (1), and the deflection correction seats (4) comprise: A base (41) is arranged on the mounting base plate (1), and a threaded hole is provided on the base (41); An adjusting threaded rod (42) is arranged along the width direction of the mounting base plate (1) and passes through the threaded hole. An abutment joint (43) is provided at one end of the adjusting threaded rod (42) facing the center of the mounting base plate (1), and a rotating hand wheel (44) is provided at the other end. The abutment joint (43) is used to abut against the lower base plate of the box body. The rotating hand wheel (44) is used to rotate the adjusting threaded rod (42) to adjust the length of the adjusting threaded rod (42) extending out of the threaded hole, so as to adjust the position of the lower base plate of the box body.

10. The auxiliary clamping device for milling the bottom plate of a large box as claimed in claim 1, characterized in that: Both ends of the installation base plate (1) are provided with centering devices (5), and the centering devices (5) include: A centering base (51) connected to the mounting base plate (1); A marking needle (52) is provided with a through slot (521), and the marking needle (52) is fixed on the centering base (51) by means of a screw nut passing through the through slot (521). The marking needle (52) faces the center line of the mounting base (1) perpendicular to the width direction, and is used to locate the position of the lower base plate of the box body on the mounting base plate (1).

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