Weight-reducing rack structure and processing technology

Abstract

The invention discloses a weight reduction rack structure and a machining process, the weight reduction rack structure comprises an upper cover assembly, a base assembly and an oil tank assembly, the upper cover assembly is arranged above the base assembly, and the oil tank assembly is located between the upper cover assembly and the base assembly; wherein the base assembly comprises a bottom support, a side support and a vertical supporting piece, the side support is arranged on the outer side of the bottom support, the vertical supporting piece is arranged on the bottom support, and the oil tank assembly is arranged on the bottom support and limited in the vertical supporting piece; the bottom support comprises two parallel bottom side beam pieces and a plurality of bottom main beam pieces, the plurality of bottom main beam pieces are arranged in the two parallel bottom side beam pieces, the bottom main beam pieces are perpendicular to the bottom side beam pieces, the bottom side beam pieces are square tubes, the bottom main beam pieces are one or more of square tubes, angle steel and channel steel, and the bottom main beam pieces are perpendicular to the bottom side beam pieces. The vertical supporting piece is one or two of a flat tube and channel steel. The weight of the rack is reduced, the production of the rack structure is standardized, and the consistency of the rack structure is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding machines, and in particular relates to a weight-reducing frame structure and a processing technology. Background Art

[0002] The injection molding machine is a device that melts plastic particles and applies high pressure to them to eject them and fill the mold cavity. One half of the mold is fixed on the fixed platen, and the other half is fixed on the movable platen. When the mold is closed, the mold cavity is formed, and the plastic particles are injected after being melted. After cooling under pressure, the movable platen moves to separate the mold, ejecting the product from the mold cavity and entering the next cycle.

[0003] The clamping mechanism such as the fixed platen and the movable platen of the fixed mold, as well as the injection mechanism that applies high pressure to the melted plastic particles and then injects them, all need to be installed on the frame. The frame serves as a platform and has the functions of bearing and fixing. At present, the frame is generally welded by the base, the upper cover and the oil tank. Due to installation requirements, in general, the base, the upper cover and the oil tank are prepared separately, and then finally welded to form a whole. In particular, the shapes of the base and the upper cover are complex, the preparation process is complicated, and the quality of the products after welding is different, making it difficult to achieve standardized production.

[0004] For example, the waste oil tank on the upper cover needs to be bent and then welded, which takes a lot of production time, and poor welding will cause oil leakage. During the preparation of the base, the connection between the crossbeam and the main beam is complex in shape, which increases the processing time. It needs to be welded inside the steel part, and the welding automation cannot be realized. In addition, the vertical supports of the base are all made of steel plates cut and bent, which takes a long time to process and affects the production of the frame structure.

[0005] In summary, it is necessary to propose a new frame structure and corresponding processing technology. Summary of the invention

[0006] In order to solve the above technical problems, the purpose of the present invention is to provide a weight-reducing frame structure and processing technology to reduce the weight of the frame, standardize the production of the frame structure, and ensure the consistency of the frame structure.

[0007] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is as follows:

[0008] A weight-reducing frame structure comprises an upper cover assembly, a base assembly and an oil tank assembly, wherein the upper cover assembly is arranged above the base assembly, and the oil tank assembly is located between the upper cover assembly and the base assembly;

[0009] Wherein, the base assembly comprises a bottom bracket, a side bracket and a vertical support, the side bracket is arranged on the outside of the bottom bracket, the vertical support is arranged on the bottom bracket, and the fuel tank assembly is arranged on the bottom bracket and is confined in the vertical support;

[0010] The bottom bracket comprises a bottom side beam and a bottom main beam, the two bottom side beams are parallel, a plurality of bottom main beams are arranged in parallel in the two bottom side beams, and the bottom main beam is perpendicular to the bottom side beam, the bottom side beam is a square tube, the bottom main beam is one or more of a square tube, an angle steel and a channel steel, and the vertical support is one or both of a flat tube and a channel steel;

[0011] The upper cover assembly includes a top bracket and an upper cover plate, the upper cover plate is fixedly mounted on the top bracket, the top bracket includes a top side beam and a top main beam, the two top side beams are parallel, a plurality of top main beams are arranged in parallel in the two top side beams, and the top main beams are perpendicular to the top side beams, the bottom surface of the top side beams is fixedly connected to the vertical support, the top side beams are square tubes, and the top main beams are channel steels.

[0012] Preferably, the bottom main beam member includes a first main beam and a second main beam, and the front and rear ends of the two bottom side beam members are connected and fixed by the first main beam. Along the length direction of the bottom side beam member, the bottom side beam member is divided into a first part and a second part. In the first part of the bottom side beam member, multiple first main beams are arranged in parallel, and in the second part of the bottom side beam member, multiple second main beams are arranged in parallel, and the fuel tank assembly is arranged on the second main beam.

[0013] More preferably, the vertical support member includes a first vertical support and a second vertical support. Along the length direction of the bottom side beam member, in the first part of the bottom side beam member, a plurality of first vertical supports are vertically arranged on the top surface of the bottom side beam member, and along the length direction of the bottom side beam member, a plurality of second vertical supports are vertically arranged on the top surface of the bottom side beam member, and the fuel tank assembly is located between the second vertical supports.

[0014] More preferably, the fuel tank assembly includes a fuel tank body, which is placed between adjacent first uprights and second uprights, wherein the length of the fuel tank body is greater than the distance between adjacent first uprights and second uprights, and the width of the fuel tank body is greater than the distance between the second uprights on both sides, the width of the fuel tank body is less than the distance between the first uprights on both sides, and the width of the fuel tank body is greater than the minimum distance between two bottom side beams.

[0015] More preferably, the bottom side beam is a square tube, the first main beam is a square tube, the second main beam is an angle steel and / or a channel steel, the first vertical support is a flat tube, and the second vertical support is a channel steel.

[0016] Preferably, a waste oil tank and a fuel tank hole are provided in the upper cover plate, the fuel tank hole is located above the fuel tank body, and the waste oil tank is formed by stamping.

[0017] A processing technology for a weight-reducing frame structure includes welding a bottom side beam member and a vertical support member, as follows:

[0018] A positioning member is arranged between the bottom side beam and the vertical support member, and the positioning member includes a fixing portion and a pin. The fixing portion is in a rectangular parallelepiped shape. Along the length direction of the bottom surface of the fixing portion, two pins are vertically arranged on the bottom surface of the fixing portion. The length of the fixing portion is equal to the width or length of the horizontal cross section inside the vertical support member.

[0019] Along the length direction of the bottom side beam, a plurality of groups of main positioning holes are arranged on the top surface of the bottom side beam, each group of main positioning holes includes two through holes, and on the same bottom side beam, the number of groups of main positioning holes is the same as the number of upright support members on the bottom side beam, the through holes are connected to the internal space of the bottom side beam, and the two through holes of each group of main positioning holes are adapted to the two pins of the positioning member;

[0020] Before welding, insert multiple positioning pieces into the top surface of the bottom side beam in sequence, insert the vertical support pieces outside the positioning pieces at the corresponding positions, and move the vertical support pieces until the positioning pieces abut against the inner side surfaces of the vertical support pieces to achieve positioning. Welding is performed after the vertical support pieces and the positioning pieces are kept in abutment and positioned, and the positions of all the vertical support pieces after welding are accurately confirmed, and finally the positioning pieces are removed.

[0021] Preferably, a cross hole is provided on the side surface of the positioning member in the longitudinal direction, and the cross hole is formed by a transverse connecting hole and a longitudinal connecting hole.

[0022] More preferably, the processing technology further includes welding the bottom side beam member to the bottom main beam member;

[0023] A positioning square tube and a locking mechanism are arranged between the two bottom side beams, the transverse connecting hole and the longitudinal connecting hole of the positioning member are both square holes, and are both adapted to the shape of the positioning square tube, the locking mechanism comprises a locking block, a guide rod and a T-shaped positioning plate, the locking block is provided with a horizontally penetrating docking square hole, the positioning square tube penetrates the locking block, the T-shaped positioning plate comprises a first plate perpendicular to the bottom side beam and a second plate parallel to the bottom side beam, along the length direction of the bottom side beam, the length of the first plate of the T-shaped positioning plate is greater than the minimum distance between the two bottom side beams, the length of the second plate of the T-shaped positioning plate is greater than the width of the bottom main beam, and the width of the second plate is less than the minimum distance between the two bottom side beams, the top ends of the multiple guide rods penetrate the locking block from bottom to top and are locked, the bottom ends of the multiple guide rods are respectively fixedly connected to the front and rear ends of the second plate of the T-shaped positioning plate, the second plate of the T-shaped positioning plate is provided with two positioning blocks, the distance between the two positioning blocks is the same as the width of the bottom main beam, and the height of the positioning block is greater than the height of the bottom main beam;

[0024] First weld the bottom main beam, and then weld the vertical support, as follows:

[0025] When it is necessary to weld the bottom main beam, first place the two bottom side beams in parallel so that the distance between the two bottom side beams is close to the length of the first main beam, install positioning pieces on the two bottom side beams, put a locking block between two opposite positioning pieces, and pass the positioning square tube through the positioning piece, the locking block and another positioning piece in sequence so that the locking block is above the two bottom side beams, move the T-shaped positioning plate and a plurality of guide rods upward from the bottom of the two bottom side beams, so that the plurality of guide rods pass through the locking blocks respectively, until the two ends of the T-shaped positioning plate abut against the bottom surfaces of the two bottom side beams, restricting the T-shaped positioning plate from continuing to rise, and then lock the guide rods and the locking blocks;

[0026] Place the main beam between the two positioning blocks of the T-shaped positioning plate, adjust the two bottom side beams so that they are respectively in contact with the two ends of the first main beam, and then weld them; after welding, remove the positioning square tube and the locking mechanism, and then weld the vertical support parts.

[0027] Preferably, the processing technology further includes welding the top side beam member and the top main beam member as follows:

[0028] A plurality of auxiliary rods are arranged between the two top side beams. A plurality of side positioning holes are provided on the top side beams along the length direction of the top side beams. Each group of side positioning holes includes four through holes, wherein two through holes are located on the outer side surface of the top side beams, and two through holes are located on the inner side surface of the top side beams. The through holes on the inner and outer side surfaces are coaxially arranged in pairs. In the same group of positioning holes, the straight line where the two through holes located on the outer side surface or the inner side surface are located is parallel to the height direction of the top side beams. Every two auxiliary rods pass through a group of positioning holes in a top side beam. The auxiliary rods connect the two top side beams to form a whole. Then, one side of the inner side of the top main beam is pressed against the auxiliary rods for positioning. The positions of the two top side beams are adjusted so that the top side beams abut against the top main beams. Then, welding is performed. After welding is completed, the auxiliary rods are taken out of the top side beams.

[0029] Beneficial effects:

[0030] The invention reduces the weight of the frame, standardizes the production of the frame structure, and ensures the consistency of the frame structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Shown is an overall schematic diagram of the weight-reducing frame structure of the present invention;

[0032] Figure 2 Shown is a schematic diagram of a base assembly of the present invention;

[0033] Figure 3 Shown is a schematic diagram of the upper cover assembly of the present invention;

[0034] Figure 4 It is a schematic diagram showing the connection between the base assembly of the present invention and the fuel tank body;

[0035] Figure 5 It is a schematic diagram showing another angle of connection between the base assembly of the present invention and the fuel tank body;

[0036] Figure 6 Shown is a schematic diagram of the cooperation between the base assembly and the positioning member of the present invention;

[0037] Figure 7 Shown Figure 6 The enlarged schematic diagram of point A in the middle;

[0038] Figure 8 Shown Figure 6 The enlarged schematic diagram of point B in the middle;

[0039] Fig. 9 Shown is a schematic diagram of a positioning member;

[0040] Fig.10 The figure shows the schematic diagram of the cooperation between the positioning piece, the positioning square tube and the locking mechanism;

[0041] Fig.11 Shown is a schematic diagram of a T-type positioning plate.

[0042] Reference numerals: 1-base assembly, 2-upper cover assembly, 3-oil tank assembly, 4-positioning member, 5-positioning square tube, 6-locking mechanism;

[0043] 11-bottom bracket, 12-side bracket, 111-bottom side beam, 112-bottom main beam, 113-vertical support, 1121-first main beam, 1122-second main beam, 1131-first vertical support, 1132-second vertical support;

[0044] 21-top bracket, 22-upper cover, 211-top side beam, 212-top main beam, 221-waste oil tank, 222-oil tank hole

[0045] 31- fuel tank body;

[0046] 41 - fixing portion, 42 - plug pin, 43 - transverse communication hole, 44 - longitudinal communication hole;

[0047] 61-locking block, 62-T-type positioning plate, 63-guide rod, 64-positioning block. DETAILED DESCRIPTION

[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0049] The present invention has noticed that the assembly and welding of the existing frame structure requires high-precision equipment to truly achieve standardized production, which greatly increases the processing cost, while the use of common welding equipment cannot ensure the consistency of the product. Based on this, the present invention proposes a new frame structure that can achieve standardized production even under general production conditions.

[0050] like Figure 1-11 As shown, the present invention proposes a weight-reducing frame structure, including an upper cover assembly 2, a base assembly 1 and an oil tank assembly 3, wherein the upper cover assembly 2 is arranged above the base assembly 1, and the oil tank assembly 3 is between the upper cover assembly 2 and the base assembly 1. The technical solution of the present invention is described in detail with a specific structure.

[0051] like Figure 1-5 As shown, the base assembly 1 includes a bottom bracket 11, a side bracket 12 and a vertical support 113, the side bracket 12 is arranged on the outside of the bottom bracket 11, the vertical support 113 is arranged on the bottom bracket 11, the upper cover assembly 2 is fixedly arranged on the top of the vertical support assembly, and the fuel tank assembly 3 is arranged on the bottom bracket 11 and is confined in the vertical support 113.

[0052] The bottom bracket 11 includes a bottom side beam 111 and a bottom main beam 112. The two bottom side beams 111 are parallel, and a plurality of bottom main beams 112 are arranged in parallel in the two bottom side beams 111, and the bottom main beams 112 are perpendicular to the bottom side beams 111. That is, the bottom bracket 11 is a ladder-like structure.

[0053] Furthermore, the bottom main beam 112 includes a first main beam 1121 and a second main beam 1122. The front and rear ends of the two bottom side beams 111 are connected and fixed by the first main beam 1121. Along the length direction of the bottom side beam 111, the bottom side beam 111 is divided into a first part and a second part. In the first part of the bottom side beam 111, multiple first main beams 1121 are arranged in parallel. In the second part of the bottom side beam 111, multiple second main beams 1122 are arranged in parallel. The fuel tank assembly 3 is arranged on the second main beam 1122.

[0054] The vertical support member 113 includes a first vertical support 1131 and a second vertical support 1132. Along the length direction of the bottom side beam member 111, in the first part of the bottom side beam member 111, multiple first vertical supports 1131 are vertically arranged on the top surface of the bottom side beam member 111. Along the length direction of the bottom side beam member 111, multiple second vertical supports 1132 are vertically arranged on the top surface of the bottom side beam member 111, and the fuel tank assembly 3 is located between the second vertical supports 1132.

[0055] It is easy to understand that the first upright supports 1131 are arranged on the two bottom beams 111 in pairs, that is, Figure 2Similarly, the second upright supports 1132 are also arranged on the two bottom side beams 111 in pairs.

[0056] Preferably, in the present invention, the bottom side beam 111 is a square tube, i.e., a square steel tube; the first main beam 1121 is a square tube; the second main beam 1122 is an angle steel and / or a channel steel; the first vertical support 1131 is a flat tube, i.e., a flat steel tube; and the second vertical support 1132 is a channel steel. The bottom bracket 11 of the present invention adopts steel components such as square tubes, flat tubes, channel steels, angle steels, etc., which is conducive to reducing the weight of the bottom bracket 11, and the mutual connection surfaces are flat, which is convenient for welding operations.

[0057] The first vertical support 1131, the second vertical support 1132 and the bottom side beam 111 are connected by welding, and the first main beam 1121, the second main beam 1122 and the bottom side beam 111 are connected by welding. In order to achieve the standardization of the welding of the vertical support 113 and the consistency of the welding quality, the present invention proposes a corresponding positioning method for the processing operation of the bottom bracket 11, which is as follows:

[0058] A positioning member 4 is arranged between the bottom beam 111 and the first vertical support 1131, and a positioning member 4 is also arranged between the bottom beam 111 and the second vertical support 1132. The positioning member 4 includes a fixing portion 41 and a pin 42. The fixing portion 41 is in a rectangular shape. Along the length direction of the bottom surface of the fixing portion 41, two pins 42 are vertically arranged on the bottom surface of the fixing portion 41. The length of the fixing portion 41 is equal to the width of the internal horizontal cross-section of the first vertical support 1131. The width of the fixing portion 41 is smaller than the length of the internal horizontal cross-section of the first vertical support 1131, and the length of the fixing portion 41 is smaller than the length of the internal horizontal cross-section of the second vertical support 1132.

[0059] Along the length direction of the bottom side beam 111, a plurality of groups of main positioning holes are arranged on the top surface of the bottom side beam 111, and each group of main positioning holes includes two through holes. On the same bottom side beam 111, the number of groups of main positioning holes is the same as the total number of the first vertical supports 1131 and the second vertical supports 1132 on the bottom side beam 111, and the through holes are connected to the internal space of the bottom side beam 111, and the two through holes of each group of main positioning holes are adapted to the two pins 42 of the positioning member 4.

[0060] On the top surface of the first part of the bottom beam 111 , the straight line where the two through holes are located is perpendicular to the length direction of the bottom beam 111 ; on the top surface of the second part of the bottom beam 111 , the straight line where the two through holes are located is parallel to the length direction of the bottom beam 111 .

[0061] Before welding, multiple positioning members 4 are inserted into the top surface of the first part of the bottom side beam 111 in sequence. When it is necessary to weld the first upright support 1131, the first upright support 1131 is inserted outside the positioning member 4 at the corresponding position, and the first upright support 1131 is moved toward one end portion of the bottom side beam 111 until the positioning member 4 abuts against the side surface of the inner width of the first upright support 1131, thereby achieving positioning. Since the length of the fixing portion 41 of the positioning member 4 is equal to the width of the internal horizontal section of the first upright support 1131, the first upright support 1131 can only move along the length direction of the bottom side beam 111. As long as the first upright support 1131 is kept in abutment with the positioning member 4 and then welded, the position of all the first upright supports 1131 after welding can be accurately confirmed.

[0062] Since the first vertical support 1131 is flat, after the first vertical support 1131 is welded, the positioning member 4 is taken out from the top end of the first vertical support 1131 .

[0063] Similarly, before welding, multiple positioning members 4 are inserted into the top surface of the second part of the bottom side beam 111 in sequence. When it is necessary to weld the second upright support 1132, the second upright support 1132 is inserted into the positioning member 4 at the corresponding position, and the position of the second upright support 1132 is adjusted so that the length direction side surface of the positioning member 4 abuts against the length side surface of the second upright support 1132, and the width direction side surface of the positioning member 4 abuts against the width side surface of one side of the second upright support 1132, thereby achieving positioning. As long as the second upright support 1132 is kept in abutment with the positioning member 4 and welding is performed, the position of all second upright supports 1132 after welding can be accurately confirmed.

[0064] Since the second vertical support 1132 is a channel steel, after the second vertical support 1132 is welded, the positioning member 4 is taken out from the side of the second vertical support 1132 .

[0065] Furthermore, in order to facilitate the removal of the positioning member 4 from the first vertical support 1131 and the second vertical support 1132, a cross hole is set on the side of the longitudinal direction of the positioning member 4 as a fulcrum for hooking, and the cross hole is formed by a transverse connecting hole 43 and a longitudinal connecting hole 44. It is easy to understand that the transverse connecting hole 43 penetrates the fixing part 41 along the length direction of the fixing part 41, and the longitudinal connecting hole 44 penetrates the fixing part 41 along the width direction of the fixing part 41. The transverse connecting hole 43 and the longitudinal connecting hole 44 overlap in the middle part of the fixing part 41. For example, when it is necessary to take out the positioning piece 4 in the first vertical support 1131, extend the pull rod with a hook-shaped end into the first vertical support 1131, extend the hook-shaped end of the pull rod into the transverse through hole of the cross hole of the positioning piece 4, and then pull the positioning piece 4 upwards out; when it is necessary to take out the positioning piece 4 in the second vertical support 1132, select an insertion rod that is compatible with the longitudinal through hole of the cross hole of the positioning piece 4, insert one end of the insertion rod into the longitudinal through hole of the positioning piece 4, and then use the rest of the insertion rod as a force point to lift the positioning piece 4 upwards until the pin 42 of the positioning piece 4 is separated from the bottom side beam 111, and then take the positioning piece 4 out from the side of the second vertical support 1132.

[0066] In order to achieve the standardization of welding of the first main beam 1121 and the second main beam 1122 and the consistency of welding quality, a positioning square tube 5 and a locking mechanism 6 are arranged between the two bottom side beams 111. The transverse connecting hole 43 and the longitudinal connecting hole 44 of the positioning member 4 are both square holes, and are both adapted to the shape of the positioning square tube 5. The positioning square tube 5 is inserted into the two corresponding positioning members 4 of the two bottom side beams 111, so that the positioning square tube 5 is stably located above the two bottom side beams 111. The locking mechanism 6 includes a locking block 61, a guide rod 63 and a T-shaped positioning plate 62. Fig.11 As shown, the locking block 61 is provided with a horizontally penetrating docking square hole, the positioning square tube 5 penetrates the locking block 61, the locking block 61 is provided with a plurality of vertical guide holes, and the plurality of vertical guide holes are respectively located in front and behind the positioning square tube 5, and a plurality of guide rods 63 respectively pass through the guide holes, and each guide hole is provided with a locking screw to lock the guide rod 63 and the locking block 61, and the T-shaped positioning plate 62 includes a first plate perpendicular to the bottom side beam 111 and a second plate parallel to the bottom side beam 111, and along the length direction of the bottom side beam 111, the first plate of the T-shaped positioning plate 62 The length of one plate is greater than the minimum distance between the two bottom side beams 111, the length of the second plate of the T-shaped positioning plate 62 is greater than the width of the bottom main beam 112, the width of the second plate is less than the minimum distance between the two bottom side beams 111, and the bottom ends of the multiple guide rods 63 are respectively fixedly connected to the front and rear ends of the second plate of the T-shaped positioning plate 62, and two positioning blocks 64 are set on the second plate of the T-shaped positioning plate 62, the distance between the two positioning blocks 64 is the same as the width of the bottom main beam 112, and the height of the positioning blocks 64 is greater than the height of the bottom main beam 112.

[0067] The locking screw is inserted from the outside of the locking block 61 to the side of the corresponding guide hole, and the guide rod 63 is locked in the locking block 61 through the threaded structure.

[0068] It is easy to understand that, when cooperating with the positioning member 4 of the first part of the bottom side beam 111, the positioning square tube 5 passes through the positioning member 4 along the transverse through hole of the positioning member 4, and the distance between the two positioning blocks 64 on the T-shaped positioning plate 62 is the same as the width of the first main beam 1121; when cooperating with the positioning member 4 of the second part of the bottom side beam 111, the positioning square tube 5 passes through the positioning member 4 along the longitudinal through hole of the positioning member 4, and the distance between the two positioning blocks 64 on the T-shaped positioning plate 62 is the same as the width of the second main beam 1122.

[0069] More preferably, the transverse through holes are arranged along the axis of the length direction of the fixing portion 41 , and the longitudinal through holes are arranged along the axis of the width direction of the fixing portion 41 .

[0070] The bottom main beam 112 is welded first, and then the vertical support 113 is welded. Taking the welding of a first main beam 1121 as an example, the cooperation method of the positioning plate and the positioning member 4 is: when it is necessary to weld the bottom main beam 112, the two bottom side beams 111 are first placed in parallel, so that the distance between the two bottom side beams 111 is close to the length of the first main beam 1121, and the positioning members 4 are installed on the two bottom side beams 111. The locking block 61 is placed between the two opposite positioning members 4, and the positioning square tube 5 passes through the positioning member 4, the locking block 61 and the other positioning member 4 in turn, so that the locking block 61 is above the two bottom side beams 111, and the T-shaped positioning plate 62 is placed with the positioning member 4, the locking block 61 and the other positioning member 4. And multiple guide rods 63 move upward from the bottom of the two bottom side beams 111, so that the multiple guide rods 63 are respectively inserted into the guide holes of the locking block 61, until the two ends of the T-shaped positioning plate 62 abut against the bottom surfaces of the two bottom side beams 111, limiting the further rise of the T-shaped positioning plate 62, and then locking the guide rods 63 and the locking block 61; place the first main beam 1121 between the two positioning blocks 64 of the T-shaped positioning plate 62, adjust the two bottom side beams 111 so that the two bottom side beams 111 abut against the two ends of the first main beam 1121, and then weld; after welding is completed, remove the positioning square tube 5 and the locking mechanism 6, and then weld the vertical support member 113.

[0071] It is easy to understand that the welding operation of the bottom bracket 11 is generally carried out on a bench, that is, there is still space below the bottom surface of the bottom bracket 11, and the T-shaped positioning plate 62 actually provides a plane for placing the bottom main beam 112. Since the position of the T-shaped positioning plate 62 between the bottom side beams 111 is fixed, after the bottom main beam 112 is placed between the two positioning blocks 64, the position of the bottom main beam 112 between the two bottom side beams 111 is also uniquely determined. Therefore, in the present invention, the structure formed by the connection between the bottom main beam 112 and the bottom side beam 111 is uniquely determined, thereby realizing standardized production of the bottom bracket 11.

[0072] When the second main beam 1122 is an angle steel, since the height of the positioning block 64 of the T-shaped positioning plate 62 is greater than the height of the angle steel, the angle steel can be positioned between the two positioning blocks 64 without tilting the angle steel.

[0073] It is easy to understand that there are gaps between the short sides of the T-shaped positioning plate 62 and the bottom side beams 111 on both sides, which is convenient for welding the bottom main beam 112 and the bottom side beams 111 .

[0074] In the present invention, the side bracket 12 is formed by independent welding, and then aligned with one end of the bottom bracket 11 and then the two are welded and fixed. The present invention does not limit the production of the side bracket 12.

[0075] like Figure 4-5 As shown, the oil tank assembly 3 includes an oil tank body 31, and the oil tank body 31 is placed between the adjacent first upright support 1131 and the second upright support 1132, wherein the length of the oil tank body 31 is greater than the distance between the adjacent first upright support 1131 and the second upright support 1132, and the width of the oil tank body 31 is greater than the distance between the two second upright supports 1132, the width of the oil tank body 31 is less than the distance between the two first upright supports 1131, and the width of the oil tank body 31 is greater than the minimum distance between the two bottom side beams 111. That is, the oil tank body 31 is carried by the bottom side beam 111 and the bottom main beam 112, and is limited by the first upright support 1131. Along the first portion of the bottom side beam 111, the oil tank body 31 can be pulled outward or pulled inward along the bottom side beam 111. Therefore, during the processing, the oil tank body 31 does not need to be welded and fixed on the base assembly 1, which is beneficial to the weight reduction design of the frame structure.

[0076] Furthermore, along the length direction of the tank body 31, pull rings are provided on the front and rear sides of the tank body 31 to facilitate pulling the tank in between the base assembly 1 and the upper cover assembly 2 and pulling the tank out from between the base assembly 1 and the upper cover assembly 2.

[0077] It is easy to understand that the first main beam 1121 , the second main beam 1122 and the top surface of the bottom side beam 111 are in the same plane, thereby providing sufficient support for the tank body 31 .

[0078] As shown in the figure, the upper cover assembly 2 includes a top bracket 21 and an upper cover plate 22, the upper cover plate 22 is fixedly sleeved on the top bracket 21, the top bracket 21 includes a top side beam 211 and a top main beam 212, two top side beams 211 are parallel, a plurality of top main beams 212 are arranged in parallel in the two top side beams 211, and the top main beams 212 are perpendicular to the top side beams 211. The bottom surface of the top side beam 211 is welded and fixed to the vertical support 113 of the base assembly 1.

[0079] In order to realize the standardized production of the top bracket 21, the present invention proposes a corresponding positioning method for the processing operation of the top bracket 21, which is as follows:

[0080] The top main beam 212 is a channel steel, and the top side beam 211 is a square tube; a plurality of auxiliary rods are arranged between the two top side beams 211, and a plurality of side positioning holes are opened on the top side beam 211 along the length direction of the top side beam 211, and each group of side positioning holes includes four through holes, wherein two through holes are located on the outer side surface of the top side beam 211, and two through holes are located on the inner side surface of the top side beam 211, and the through holes on the inner and outer side surfaces are coaxially arranged in pairs, and in the same group of positioning holes, the straight line where the two through holes located on the outer side surface or the inner side surface are located is parallel to the height direction of the top side beam 211, and every two auxiliary rods pass through a group of positioning holes in a top side beam 211, and the auxiliary rods connect the two top side beams 211 to form a whole, and then the inner side of the top main beam 212 is close to the auxiliary rod for positioning, and the positions of the two top side beams 211 are adjusted so that the top side beam 211 is abutted against the top main beam 212, and then welding is performed. After welding is completed, the auxiliary rod can be taken out from the top side beam 211.

[0081] It is easy to understand that in the same top side beam 211 , the number of groups of positioning holes is the same as the number of top main beams 212 , and the number of auxiliary rods is twice the number of top main beams 212 .

[0082] Since the top main beam 212 is a channel steel, its inner side has three surfaces, and the side opening of the top main beam 212 is consistent with the length direction of the top side beam 211, the top main beam 212 can be positioned by clinging to the two auxiliary rods on the side.

[0083] Furthermore, an auxiliary block is provided between the two top side beams 211. When the auxiliary rod passes through the two top side beams 211, the auxiliary rod also passes through the auxiliary block between the two top side beams 211. At this time, the inner wall of the top main beam 212 is close to the auxiliary block, and the top surface of the top main beam 212 above the auxiliary block is flush with the top surface of the top side beam 211. The auxiliary block plays a role in assisting the fixing of the top main beam 212. After the welding of the top bracket 21 is completed, the auxiliary rod is taken out, and at the same time, the auxiliary block is also separated from the top main beam 212.

[0084] The top main beam 212 and the top side beam 211 are provided with a plurality of wiring members along their length direction. The wiring members are angle steels and are fixed to the top main beam 212 or the top side beam 211 by welding.

[0085] The top bracket 21 and the base assembly 1 are positioned by aligning the top bracket 21 with one end of the bottom bracket 11 , and then the top bracket 21 is fixed to the top end of the vertical support 113 by welding.

[0086] A waste oil tank 221 and an oil tank hole 222 are provided in the upper cover plate 22. The oil tank hole 222 is located above the oil tank body 31. The waste oil tank 221 is formed by stamping to avoid the risk of oil leakage.

[0087] The upper cover plate 22 and the top bracket 21 are fixed by bolt structure or by welding. When the upper cover plate 22 and the top bracket 21 are fixed by bolt structure, the upper cover plate 22 and the top main beam 212 of the top bracket 21 are fixed by bolt structure.

[0088] In the present invention, other components of the frame structure, such as the lifting ears, are directly welded and fixed, and the present invention does not impose any limitation thereto.

[0089] It should be noted that the through holes of the base assembly 1 and the upper cover assembly 2 of the present invention are accurately punched by equipment, so when matched with the corresponding positioning parts 4 or auxiliary rods, consistency of welding positions and standardized production can be achieved.

[0090] The present invention uses a large number of steel components such as square tubes, flat tubes, channel steels, angle steels, etc., which effectively reduces the weight of the frame structure to achieve a weight reduction effect.

[0091] The present invention is suitable for manual welding and also for automatic welding by a robot. For example, when welding the base assembly 1, after the top main beam member 212 and the vertical support member 113 are positioned by the positioning member 4 and the locking mechanism 6, automatic welding is performed by a robot.

[0092] The embodiments provided by the present invention are described in detail above. Specific examples are used herein to describe the principles and implementation methods of the present invention, and the description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A weight-reducing frame structure, characterized in that: It comprises an upper cover assembly (2), a base assembly (1) and an oil tank assembly (3), wherein the upper cover assembly (2) is arranged above the base assembly (1), and the oil tank assembly (3) is located between the upper cover assembly (2) and the base assembly (1); The base assembly (1) comprises a bottom bracket (11), a side bracket (12) and a vertical support member (113); the side bracket (12) is arranged on the outside of the bottom bracket (11); the vertical support member (113) is arranged on the bottom bracket (11); and the fuel tank assembly (3) is arranged on the bottom bracket (11) and is confined within the vertical support member (113); The bottom bracket (11) comprises a bottom side beam (111) and a bottom main beam (112), the two bottom side beams (111) are parallel, a plurality of bottom main beams (112) are arranged in parallel in the two bottom side beams (111), and the bottom main beams (112) are perpendicular to the bottom side beams (111), the bottom side beams (111) are square tubes, the bottom main beams (112) are one or more of square tubes, angle steels and channel steels, and the vertical support members (113) are one or both of flat tubes and channel steels; The upper cover assembly (2) comprises a top support (21) and an upper cover plate (22), wherein the upper cover plate (22) is fixedly sleeved on the top support (21), and the top support (21) comprises a top side beam (211) and a top main beam (212), wherein the two top side beams (211) are parallel, and a plurality of top main beams (212) are arranged in parallel in the two top side beams (211), and the top main beams (212) are perpendicular to the top side beams (211), and the bottom surface of the top side beams (211) is fixedly connected to the vertical support (113), the top side beams (211) are square tubes, and the top main beams (212) are channel steels.

2. The weight-reducing frame structure according to claim 1, characterized in that: The bottom main beam member (112) comprises a first main beam (1121) and a second main beam (1122); the front and rear ends of the two bottom side beam members (111) are connected and fixed by the first main beam (1121); along the length direction of the bottom side beam member (111), the bottom side beam member (111) is divided into a first part and a second part; in the first part of the bottom side beam member (111), a plurality of first main beams (1121) are arranged in parallel; in the second part of the bottom side beam member (111), a plurality of second main beams (1122) are arranged in parallel; and the oil tank assembly (3) is arranged on the second main beam (1122).

3. The weight-reducing frame structure according to claim 2, characterized in that: The vertical support member (113) comprises a first vertical support (1131) and a second vertical support (1132). Along the length direction of the bottom side beam member (111), in a first part of the bottom side beam member (111), a plurality of first vertical supports (1131) are vertically arranged on the top surface of the bottom side beam member (111); along the length direction of the bottom side beam member (111), a plurality of second vertical supports (1132) are vertically arranged on the top surface of the bottom side beam member (111); and the oil tank assembly (3) is located between the second vertical supports (1132).

4. The weight-reducing frame structure according to claim 3, characterized in that: The oil tank assembly (3) comprises an oil tank body (31), wherein the oil tank body (31) is disposed between adjacent first upright supports (1131) and second upright supports (1132), wherein the length of the oil tank body (31) is greater than the distance between the adjacent first upright supports (1131) and second upright supports (1132), and the width of the oil tank body (31) is greater than the distance between the second upright supports (1132) on both sides, the width of the oil tank body (31) is less than the distance between the first upright supports (1131) on both sides, and the width of the oil tank body (31) is greater than the minimum distance between the two bottom side beams (111).

5. The weight-reducing frame structure according to claim 3, characterized in that: The bottom side beam (111) is a square tube, the first main beam (1121) is a square tube, the second main beam (1122) is an angle steel and / or a channel steel, the first vertical support (1131) is a flat tube, and the second vertical support (1132) is a channel steel.

6. The weight-reducing frame structure according to claim 1, characterized in that: A waste oil groove (221) and an oil tank hole (222) are arranged in the upper cover plate (22); the oil tank hole (222) is located above the oil tank body (31); and the waste oil groove (221) is formed by stamping.

7. A processing technology for a weight-reducing frame structure, characterized in that: Used for processing and preparing the weight-reducing frame structure according to any one of claims 1 to 6, comprising welding a bottom side beam (111) and a vertical support (113), as follows: A positioning member (4) is arranged between the bottom beam member (111) and the vertical support member (113), the positioning member (4) comprising a fixing portion (41) and a pin (42), the fixing portion (41) being in a rectangular parallelepiped shape, two pins (42) being arranged vertically on the bottom surface of the fixing portion (41) along the length direction of the bottom surface of the fixing portion (41), the length of the fixing portion (41) being equal to the width or length of the horizontal cross section inside the vertical support member (113), Along the length direction of the bottom side beam (111), a plurality of groups of main positioning holes are arranged on the top surface of the bottom side beam (111), each group of main positioning holes includes two through holes, and on the same bottom side beam (111), the number of groups of main positioning holes is the same as the number of upright support members (113) on the bottom side beam (111), the through holes are connected to the internal space of the bottom side beam (111), and the two through holes of each group of main positioning holes are adapted to the two pins (42) of the positioning member (4); Before welding, a plurality of positioning members (4) are sequentially inserted into the top surface of the bottom side beam member (111), the vertical support member (113) is inserted outside the positioning member (4) at the corresponding position, and the vertical support member (113) is moved until the positioning member (4) abuts against the inner side surface of the vertical support member (113) to achieve positioning, and welding is performed after the vertical support member (113) and the positioning member (4) are kept in abutment and positioning, and the position of all the vertical support members (113) after welding is accurately confirmed, and finally the positioning member (4) is removed.

8. The processing technology of the weight-reducing frame structure according to claim 7, characterized in that: A cross hole is arranged on the side surface in the longitudinal direction of the positioning member (4), and the cross hole is formed by a transverse connecting hole (43) and a longitudinal connecting hole (44).

9. The processing technology of the weight-reducing frame structure according to claim 8, characterized in that: It also includes welding of a bottom side beam member (111) and a bottom main beam member (112); A positioning square tube (5) and a locking mechanism (6) are arranged between the two bottom side beams (111); the transverse connecting hole (43) and the longitudinal connecting hole (44) of the positioning member (4) are both square holes and are both adapted to the shape of the positioning square tube (5); the locking mechanism (6) comprises a locking block (61), a guide rod (63) and a T-shaped positioning plate (62); the locking block (61) is provided with a horizontally penetrating docking square hole; the positioning square tube (5) penetrates the locking block (61); the T-shaped positioning plate (62) comprises a first plate perpendicular to the bottom side beam (111) and a second plate parallel to the bottom side beam (111); along the length direction of the bottom side beam (111), the first plate of the T-shaped positioning plate (62) The length of the second plate of the T-shaped positioning plate (62) is greater than the minimum distance between the two bottom side beams (111); the length of the second plate of the T-shaped positioning plate (62) is greater than the width of the bottom main beam (112); the width of the second plate is less than the minimum distance between the two bottom side beams (111); the top ends of the plurality of guide rods (63) penetrate the locking block (61) from bottom to top and are locked; the bottom ends of the plurality of guide rods (63) are respectively fixedly connected to the front and rear ends of the second plate of the T-shaped positioning plate (62); the second plate of the T-shaped positioning plate (62) is provided with two positioning blocks (64); the distance between the two positioning blocks (64) is the same as the width of the bottom main beam (112); and the height of the positioning blocks (64) is greater than the height of the bottom main beam (112); The bottom main beam (112) is welded first, and then the vertical support (113) is welded as follows: When welding the bottom main beam (112), firstly place the two bottom side beams (111) in parallel so that the distance between the two bottom side beams (111) is close to the length of the first main beam (1121), install positioning pieces (4) on the two bottom side beams (111), put a locking block (61) between two opposite positioning pieces (4), and sequentially pass the positioning piece (4), the locking block (61) and another positioning piece (4) so ​​that the locking block (61) is located above the two bottom side beams (111), and move the T-shaped positioning plate (62) and a plurality of guide rods (63) upward from the bottom of the two bottom side beams (111) so that the plurality of guide rods (63) respectively pass through the locking block (61) until the two ends of the T-shaped positioning plate (62) abut against the bottom surfaces of the two bottom side beams (111), thereby limiting the further rise of the T-shaped positioning plate (62), and then lock the guide rods (63) and the locking block (61); The main beam is placed between two positioning blocks (64) of the T-shaped positioning plate (62), and the two bottom side beams (111) are adjusted so that the two bottom side beams (111) are respectively abutted against the two ends of the first main beam (1121), and then welding is performed; after the welding is completed, the positioning square tube (5) and the locking mechanism (6) are removed, and then the vertical support member (113) is welded.

10. The processing technology of the weight-reducing frame structure according to claim 7, characterized in that: It also includes welding the top side beam (211) and the top main beam (212) as follows: A plurality of auxiliary rods are arranged between the two top side beams (211), and a plurality of groups of side positioning holes are provided on the top side beams (211) along the length direction of the top side beams (211), and each group of side positioning holes includes four through holes, wherein two through holes are located on the outer side surface of the top side beams (211), and two through holes are located on the inner side surface of the top side beams (211), and the through holes on the inner and outer side surfaces are arranged coaxially in pairs, and in the same group of positioning holes, the straight line where the two through holes located on the outer side surface or the inner side surface are located is aligned with the top side beam. The height direction of the top beam (211) is parallel, and every two auxiliary rods penetrate a group of positioning holes in a top beam (211). The auxiliary rods connect the two top beams (211) to form a whole, and then one side of the top main beam (212) is close to the auxiliary rods to achieve positioning, and the positions of the two top beams (211) are adjusted so that the top beam (211) and the top main beam (212) are abutted, and then welding is performed. After welding is completed, the auxiliary rods are taken out from the top beam (211).

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