A lifting fixture for semi-trailer production

Abstract

The invention discloses a lifting fixture for semi-trailer production, which belongs to the technical field of lifting, and comprises a bracket and a lifting mechanism, wherein the lifting mechanism comprises: a connecting frame, a fixed frame, a movable frame, a movable plate, an adjusting component, a supporting frame, a supporting frame, a clamping plate, an auxiliary fixing component and a connecting component; a fixed frame is fixedly installed at the bottom end of the connecting frame, and the position of the movable frame inside the fixed frame can be adjusted by the adjusting component, and the stability of the supporting frame can be ensured by the sliding connection between the movable frame and the movable plate, so as to facilitate the lifting operation; the position of the supporting frame at the bottom end of the supporting frame can be adjusted by the movable component, so as to facilitate the lifting operation of products with different lengths or widths; the supporting plate can conveniently contact with the bottom end of the product for support; and the connecting component can realize close contact between the auxiliary fixing component and the surface of the product under the action of the product's own gravity, so as to improve the lifting effect, ensure the stability during the lifting process, and avoid the shaking of the product after lifting.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting, and in particular relates to a lifting fixture for semi-trailer production. Background Art

[0002] Semi-trailers are large in size and weight, so the main load-bearing beam and the secondary load-bearing beam in the chassis structure of the semi-trailer are long and heavy, so they need to be lifted and installed using lifting equipment; lifting tools are widely used in various fields such as mechanical processing, chemical industry, petroleum, building materials, etc. As long as product transportation is involved, corresponding lifting tools are required.

[0003] The existing lifting fixtures for semi-trailer production are not convenient to adjust according to the shape of the product during use, which can easily result in poor lifting effect and product falling. After the product is lifted, it is not convenient to keep the product stable on the lifting fixture, causing the product to shake on the lifting fixture, affecting the lifting effect and lifting efficiency.

[0004] In order to avoid the above technical problems, it is necessary to provide a lifting fixture for semi-trailer production to overcome the above defects in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a lifting fixture for semi-trailer production to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A lifting fixture for semi-trailer production, comprising a bracket and a lifting mechanism, wherein the lifting mechanism comprises:

[0008] A connecting frame is fixedly mounted on the top of the bracket, a fixed frame is fixedly mounted on the bottom of the bracket, a moving frame is mounted inside the fixed frame, a moving plate is arranged inside the moving frame, the moving plate is slidably connected with the moving frame, two moving plates and the moving frame are arranged respectively and are divided into two groups and are centrally symmetrically mounted on the fixed frame, an adjusting component is mounted on the fixed frame, the adjusting component is connected with the moving frame, and is used to drive the moving frame to move along the inside of the fixed frame;

[0009] A support frame is fixedly installed on one end of the movable frame away from the fixed frame, a support frame is provided at the bottom end of the support frame, a movable component is installed between the support frame and the support frame, and is used to adjust the position of the support frame on the bottom side of the support frame, a vertical clamping plate is installed on the support frame, a support plate is provided on the bottom side of the support frame, an auxiliary fixing component is installed on the side of the support frame, and a connecting component is installed between the support plate and the auxiliary fixing component, which is used to make the auxiliary fixing component closely contact with the surface of the product under the action of the gravity of the product after the support plate supports the product, so as to further fix the product.

[0010] As a further technical solution of the present invention: the adjustment component comprises:

[0011] The first rack is fixedly mounted on the side of the movable frame, the first rack is located on the inner side of the fixed frame, a rotating rod is installed in the middle of the fixed frame, the rotating rod is rotatably connected to the fixed frame, a rotating tooth is fixedly mounted on the outer side of the bottom end of the rotating rod, the rotating tooth is meshed with the first rack, the rotating tooth is located on the inner side of the fixed frame, a transmission tooth is fixedly mounted on the top of the rotating rod, a first driving member is fixedly mounted on the top of the fixed frame, a transmission rod is fixedly mounted on the output end of the first driving member, and the transmission rod is cooperatively connected with the transmission tooth.

[0012] As a further technical solution of the present invention: the mobile component comprises:

[0013] The slide groove is located on the bottom side of the support frame, a second driving member is fixedly installed in the middle of the inner side of the support frame, a driving rod is fixedly installed on the output end of the second driving member, the driving rod is rotatably connected to the inner wall of the support frame at one end away from the second driving member, a moving block is installed on the outer side of the driving rod, the shape of the moving block is inverted convex, the bottom end of the moving block is slidably connected to the slide groove, the moving block is threadedly connected to the driving rod, and the bottom side of the moving block is fixedly connected to the top of the support frame.

[0014] As a further technical solution of the present invention: the auxiliary fixing assembly comprises:

[0015] The cam is provided with a fixing frame on the outside of the fixing frame, and the fixing frame is fixedly mounted on the outer wall of the fixing frame. The fixing frame is fixedly mounted on the outer wall of the fixing frame, and the fixing frame is rotatably connected to the fixing frame. A rotating tooth is fixedly mounted on the middle part of the first short rod, and the rotating tooth is cooperated with the rotating rod and connected with the rotating rod. A connecting plate is also fixedly mounted on the outside of the first short rod, and a second short rod is installed at one end of the connecting plate away from the fixing frame, and the second short rod is rotatably connected to the connecting plate. The fixing frame, the first short rod, the second short rod and the connecting plate are each provided with two and are divided into two groups and installed in parallel on the outer wall of the supporting frame. The two second short rods are fixedly mounted with fixing plates, and one end of the fixing plate is fixedly mounted with a clamping assembly for close contact with the product surface.

[0016] As a further technical solution of the present invention: the clamping assembly comprises:

[0017] A limiting plate is fixedly installed on one end of the fixing plate and is vertically shaped, a limiting hole is provided on the limiting plate, a limiting rod is provided inside the limiting hole, the limiting rod is horizontal, a baffle is fixedly installed on one end of the limiting rod close to the fixing plate, a clamping plate is fixedly installed on the end of the limiting rod away from the baffle, a clamping pad is fixedly installed on the surface of the clamping plate, and the shape of the clamping pad is wavy, a first elastic member is installed between the clamping plate and the limiting plate, and the first elastic member is sleeved on the outside of the limiting rod; the limiting hole, limiting rod, baffle, clamping plate and first elastic member are all provided in plurality and are evenly distributed on the limiting plate.

[0018] As a further technical solution of the present invention: the connection assembly comprises:

[0019] A connecting tooth is fixedly mounted on the outside of one end of the rotating rod, a connecting hole is provided in the middle of the bottom end of the supporting frame, a vertically mounted connecting rod is provided on the inside of the connecting hole, the bottom end of the connecting rod is fixedly connected to the supporting plate, a connecting block is fixedly mounted on the top end of the connecting rod, a second rack is fixedly mounted on the side of the connecting block, the second rack is meshed and connected with the connecting tooth, a second elastic member is installed between the bottom end of the connecting block and the supporting frame, and the second elastic member is sleeved on the outside of the connecting rod.

[0020] As a further technical solution of the present invention: a positioning hole is provided on the bottom side of one end of the support frame away from the clamping plate, a vertically mounted positioning rod is fixedly mounted on the support plate, and the positioning rod passes through the positioning hole and extends into the inner side of the support frame.

[0021] As a further technical solution of the present invention: a positioning groove is provided on the inner wall of the fixed frame, a sliding bar is fixedly installed on the side of the movable frame, the sliding bar is slidably connected to the positioning groove, and is used to limit the moving trajectory of the movable frame on the inner side of the fixed frame, and a positioning plate is fixedly installed on the outer side of one end of the movable frame close to the movable plate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a lifting fixture for semi-trailer production, wherein a fixed frame is fixedly installed at the bottom end of the connecting frame, and the position of the movable frame inside the fixed frame can be adjusted by an adjusting component, and the stability of the support frame can be ensured by the sliding connection between the movable frame and the movable plate, so as to facilitate the lifting operation, and the position of the support frame at the bottom end of the support frame can be adjusted by the movable component, so as to facilitate the lifting operation of products of different lengths or widths, and the support plate can conveniently contact with the bottom end of the product for support, and the connecting component can realize close contact between the auxiliary fixing component and the surface of the product under the action of the product's own gravity, so as to improve the lifting effect, ensure the stability during the lifting process, and avoid shaking of the product after lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a schematic structural diagram of the bottom side of the fixing frame and the supporting frame in the present invention.

[0026] Figure 3 It is a structural schematic diagram of the side surface of the support frame and the support frame in the present invention.

[0027] Figure 4 It is a schematic diagram of the structure of the regulating component in the present invention.

[0028] Figure 5 It is a schematic diagram of the structure of the outer side of the support frame in the present invention.

[0029] Figure 6 It is a schematic diagram of the structure of the auxiliary fixing assembly in the present invention.

[0030] Figure 7 It is a schematic diagram of the structure between the connecting component and the auxiliary fixing component in the present invention.

[0031] Figure 8 It is a structural schematic diagram of the middle section of the support frame in the present invention.

[0032] Fig. 9 For the present invention Figure 7 Schematic diagram of the structure enlarged at point A in the middle.

[0033] In the accompanying drawings: 1- bracket, 2- connecting frame, 3- fixed frame, 4- moving frame, 5- moving plate, 6- adjusting assembly, 61- first rack, 62- rotating rod, 63- rotating tooth, 64- transmission tooth, 65- first driving member, 66- transmission rod, 7- moving assembly, 71- slide groove, 72- second driving member, 73- driving rod, 74- moving block, 8- auxiliary fixing assembly, 81- limiting groove, 82- rotating rod, 83- fixed frame, 84- first short rod, 85- rotating tooth, 86- connecting plate, 87- second short rod, 88 -fixed plate, 89-clamping assembly, 891-limiting plate, 892-limiting hole, 893-limiting rod, 894-baffle, 895-clamping plate, 896-clamping pad, 897-first elastic member, 9-connecting assembly, 91-connecting teeth, 92-connecting holes, 93-connecting rod, 94-connecting block, 95-second rack, 96-second elastic member, 10-support frame, 11-support frame, 12-clamping plate, 13-support plate, 14-positioning hole, 15-positioning rod, 16-positioning groove, 17-slide, 18-positioning plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0036] like Figures 1 to 9 As shown in the embodiment provided by the present invention, a hoisting fixture for semi-trailer production includes a bracket 1 and a hoisting mechanism, wherein the hoisting mechanism includes:

[0037] A connecting frame 2 is fixedly mounted on the top of the bracket 1, a fixed frame 3 is fixedly mounted on the bottom of the bracket 1, a moving frame 4 is mounted inside the fixed frame 3, a moving plate 5 is provided inside the moving frame 4, the moving plate 5 is slidably connected to the moving frame 4, two moving plates 5 and moving frame 4 are provided and divided into two groups and centrally symmetrically mounted on the fixed frame 3, an adjusting component 6 is installed on the fixed frame 3, the adjusting component 6 is connected to the moving frame 4, and is used to drive the moving frame 4 to move along the inside of the fixed frame 3;

[0038] A support frame 10 is fixedly installed at one end of the movable frame 4 away from the fixed frame 3, a support frame 11 is provided at the bottom end of the support frame 10, a movable component 7 is installed between the support frame 11 and the support frame 10, and is used to adjust the position of the support frame 11 on the bottom side of the support frame 10, a vertical clamping plate 12 is installed on the support frame 11, a support plate 13 is provided on the bottom side of the support frame 11, an auxiliary fixing component 8 is installed on the side of the support frame 11, and a connecting component 9 is installed between the support plate 13 and the auxiliary fixing component 8, which is used to make the auxiliary fixing component 8 closely contact with the surface of the product under the action of the gravity of the product after the support plate 13 supports the product, so as to further fix the product.

[0039] In this embodiment, a fixed frame 3 is fixedly installed at the bottom end of the connecting frame 2. The position of the movable frame 4 inside the fixed frame 3 can be adjusted by the adjusting component 6. The sliding connection between the movable frame 4 and the movable plate 5 can ensure the stability of the support frame 10, which is convenient for lifting operations. The position of the support frame 11 at the bottom end of the support frame 10 can be adjusted by the moving component 7, which is convenient for lifting operations on products of different lengths or widths. The support plate 13 can be conveniently contacted with the bottom end of the product for support. The connecting component 9 can realize close contact between the auxiliary fixing component 8 and the surface of the product under the action of the product's own gravity, thereby improving the lifting effect, ensuring stability during the lifting process, and avoiding shaking of the product after lifting. A lifting ring can be installed on the connecting frame 2 to facilitate lifting operations; The support frame 10 is provided with two and symmetrically distributed on both sides of the fixed frame 3. The side surfaces of the support frame 10 are fixedly connected to the movable frame 4 and the movable plate 5. The two movable frames 4 can be relatively moved along the inner side of the fixed frame 3 through the adjustment component 6. The stability of the support frame 10 can be maintained through the movable plate 5 to avoid the support frame 10 from tilting. The inner wall of the fixed frame 3 is provided with a positioning groove 16. A sliding bar 17 is fixedly installed on the side of the movable frame 4. The sliding bar 17 is slidably connected to the positioning groove 16 and is used to limit the moving trajectory of the movable frame 4 on the inner side of the fixed frame 3, which can effectively ensure the stability of the movable frame 4 when moving along the fixed frame 3. A positioning plate 18 is fixedly installed on the outer side of one end of the movable frame 4 close to the movable plate 5, which can effectively prevent the movable frame 4 from detaching from the fixed frame 3.

[0040] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 3 and Figure 4 , the regulating component 6 comprises:

[0041] The first rack 61 is fixedly mounted on the side of the movable frame 4, the first rack 61 is located on the inner side of the fixed frame 3, a rotating rod 62 is installed in the middle of the fixed frame 3, the rotating rod 62 is rotatably connected to the fixed frame 3, a rotating tooth 63 is fixedly mounted on the outer side of the bottom end of the rotating rod 62, the rotating tooth 63 is meshed with the first rack 61, the rotating tooth 63 is located on the inner side of the fixed frame 3, a transmission tooth 64 is fixedly mounted on the top of the rotating rod 62, a first driving member 65 is fixedly mounted on the top of the fixed frame 3, a transmission rod 66 is fixedly mounted on the output end of the first driving member 65, and the transmission rod 66 is matched with the transmission tooth 64.

[0042] The mobile assembly 7 comprises:

[0043] The slide groove 71 is located on the bottom side of the support frame 10, and a second driving member 72 is fixedly installed in the middle of the inner side of the support frame 10, and a driving rod 73 is fixedly installed at the output end of the second driving member 72. The driving rod 73 is rotatably connected to the inner wall of the support frame 10 at one end away from the second driving member 72, and a moving block 74 is installed on the outer side of the driving rod 73. The shape of the moving block 74 is an inverted convex shape, and the bottom end of the moving block 74 is slidably connected to the slide groove 71, and the moving block 74 is threadedly connected to the driving rod 73, and the bottom side of the moving block 74 is fixedly connected to the top of the support frame 11.

[0044] In this embodiment, a horizontal first rack 61 is fixedly installed on the side of the moving frame 4, and the first racks 61 are installed on the two moving frames 4. A vertical rotating rod 62 is installed in the middle of the fixed frame 3, and a rolling bearing is installed between the rotating rod 62 and the fixed frame 3. A rotating tooth 63 is fixedly installed on the outer side of the bottom end of the rotating rod 62, and the rotating tooth 63 is meshed and connected with the two first racks 61. When the rotating tooth 63 rotates, it is convenient to drive the first rack 61 to drive the moving frame 4 to move along the inner side of the fixed frame 3. A transmission tooth 64 is fixedly installed on the top of the rotating rod 62, and the transmission tooth 64 is located in the middle of the top of the fixed frame 3. A first driving member 65 is installed on the top of the fixed frame 3. The first driving member 65 can be a rotary motor or a stepping motor, etc. In the present embodiment, the first driving member 65 is a rotary motor. A transmission rod 66 is fixedly mounted on the output end of the first driving member 65. The transmission tooth 64 is a worm wheel in the present embodiment. The transmission rod 66 is a worm in the present embodiment. The transmission tooth 64 is connected with the transmission rod 66 in cooperation. The transmission rod 66 is controlled to rotate by the first driving member 65, so that the transmission tooth 64 drives the rotating rod 62 to rotate on the fixed frame 3. The rotating tooth 63 is meshed with the first rack 61, so that the movable frame 4 is conveniently moved along the inner side of the fixed frame 3. The self-locking property of the worm wheel and the worm can effectively maintain the stability of the movable frame 4 after it moves along the fixed frame 3.

[0045] A linear slide groove 71 is provided on the bottom side of the support frame 10, and the second driving member 72 is fixedly installed on the inner side of the support frame 10. The second driving member 72 can be a rotating motor or a stepping motor, etc. In the present embodiment, the second driving member 72 is a dual-axis motor, and the two output ends of the second driving member 72 are fixedly installed with a driving rod 73, and the driving rod 73 in the present embodiment is a threaded rod. The moving block 74 can move along the slide groove 71, and a screw hole is provided on the moving block 74. The inner side of the screw hole is threadedly connected with the outer side of the driving rod 73. When the driving rod 73 rotates, it is convenient to realize the moving block 74 to move along the driving rod 73. When the second driving member 72 controls the driving rod 73 to rotate, it is convenient to realize the relative movement of the moving blocks 74 on the two driving rods 73, so that the clamping plate 895 on the support frame 11 is close to the side of the product and the support plate 13 supports the product.

[0046] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 , the auxiliary fixing assembly 8 comprises:

[0047] The limiting groove 81 is located on the side of the support frame 11. A rotating rod 82 is fixedly installed inside the limiting groove 81. Both ends of the rotating rod 82 are rotatably connected to the inner wall of the limiting groove 81. A fixing frame 83 is provided outside the limiting groove 81. The fixing frame 83 is fixedly installed on the outer wall of the support frame 11. A first short rod 84 is installed inside the fixing frame 83. The first short rod 84 is rotatably connected to the fixing frame 83. A rotating tooth 85 is fixedly installed in the middle of the first short rod 84. The rotating tooth 85 cooperates with the rotating rod 82. A connecting plate 86 is fixedly installed on the outer side of the first short rod 84, and a second short rod 87 is installed on the end of the connecting plate 86 away from the fixed frame 83. The second short rod 87 is rotatably connected to the connecting plate 86. The fixed frame 83, the first short rod 84, the second short rod 87 and the connecting plate 86 are each provided with two, and are divided into two groups and installed in parallel on the outer wall of the support frame 11. A fixing plate 88 is fixedly installed on the two second short rods 87, and a clamping assembly 89 is fixedly installed on one end of the fixing plate 88 for close contact with the product surface.

[0048] The clamping assembly 89 comprises:

[0049] The limiting plate 891 is fixedly installed at one end of the fixing plate 88 and is vertical. A limiting hole 892 is provided on the limiting plate 891. A limiting rod 893 is provided inside the limiting hole 892. The limiting rod 893 is horizontal. A baffle 894 is fixedly installed at one end of the limiting rod 893 close to the fixing plate 88. A clamping plate 895 is fixedly installed at one end of the limiting rod 893 away from the baffle 894. A clamping pad 896 is fixedly installed on the surface of the clamping plate 895. The shape of the clamping pad 896 is wavy. A first elastic member 897 is installed between the clamping plate 895 and the limiting plate 891, and the first elastic member 897 is sleeved on the outside of the limiting rod 893. The limiting hole 892, the limiting rod 893, the baffle 894, the clamping plate 895 and the first elastic member 897 are all provided in plurality and are evenly distributed on the limiting plate 891.

[0050] In this embodiment, a horizontal limiting groove 81 is provided on the side of the support frame 11, and a horizontal rotating rod 82 is installed inside the limiting groove 81. Rolling bearings are arranged between the two ends of the rotating rod 82 and the inner wall of the limiting groove 81, and the rotating rod 82 can stably rotate inside the limiting groove 81. The rotating rod 82 is a worm in this embodiment, and the fixed frame 83 is installed on the support frame 11 and is located outside the limiting groove 81. A first short rod 84 is installed inside the fixed frame 83. The first short rod 84 is vertical, and a rolling bearing is installed between the first short rod 84 and the fixed frame 83. A rotating tooth 85 is fixedly installed in the middle of the first short rod 84. The rotating tooth 85 is a worm wheel in this embodiment. The rotating rod 82 is matched with the rotating tooth 85 and connected. When the rotating When the rod 82 rotates, it is convenient to drive the first short rod 84 to rotate on the fixed frame 83. A connecting plate 86 is also fixedly installed on the first short rod 84. The connecting plate 86 is horizontal. A rolling bearing is installed between the second short rod 87 and the connecting plate 86. The fixed frame 83, the first short rod 84, the second short rod 87 and the connecting plate 86 are each provided with two, and are divided into two groups and installed in parallel on the outer wall of the support frame 11. A fixing plate 88 is fixedly installed on the two second short rods 87. The two groups of connecting plates 86 are parallel. A parallelogram is formed between the fixed frame 83, the connecting plate 86 and the fixing plate 88. When the first short rod 84 drives the connecting plate 86 to rotate, it is convenient to realize that the fixing plate 88 drives the clamping assembly 89 to approach the product surface, which is convenient for auxiliary fixing operation;

[0051] The limiting plate 891 is vertically mounted on one end of the fixing plate 88, a limiting hole 892 is provided on the limiting plate 891, the limiting rod 893 passes through the limiting hole 892 and is horizontal, a baffle 894 is fixedly mounted on one end of the limiting rod 893 near the fixing plate 88, which can effectively prevent the limiting rod 893 from being separated from the limiting hole 892, a clamping plate 895 is fixedly mounted on the other end of the limiting rod 893, a wavy clamping pad 896 is fixedly mounted on the surface of the clamping plate 895, and the material of the clamping pad 896 is rubber, which is convenient for contact with the product surface , which can effectively improve the friction between the clamping plate 895 and the product surface. A first elastic member 897 is installed between the clamping plate 895 and the limiting plate 891. The first elastic member 897 can be a spring or rubber, etc. In this embodiment, the first elastic member 897 is a spring. The limiting hole 892, the limiting rod 893, the baffle 894, the clamping plate 895 and the first elastic member 897 are all provided in multiple and evenly distributed on the limiting plate 891. Through multiple groups of clamping plates 895, it is convenient to contact with product surfaces of different shapes, improve the clamping effect, and facilitate use.

[0052] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 , the connection component 9 comprises:

[0053] A connecting tooth 91 is fixedly mounted on the outer side of one end of the rotating rod 82. A connecting hole 92 is provided in the middle of the bottom end of the support frame 11. A vertically mounted connecting rod 93 is provided inside the connecting hole 92. The bottom end of the connecting rod 93 is fixedly connected to the support plate 13. A connecting block 94 is fixedly mounted on the top of the connecting rod 93. A second rack 95 is fixedly mounted on the side of the connecting block 94. The second rack 95 is meshed and connected with the connecting tooth 91. A second elastic member 96 is installed between the bottom end of the connecting block 94 and the support frame 11. The second elastic member 96 is sleeved on the outer side of the connecting rod 93.

[0054] In this embodiment, a connecting tooth 91 is fixedly installed on the rotating rod 82, and the connecting tooth 91 can drive the rotating rod 82 to rotate inside the limiting groove 81. A connecting hole 92 is provided at the bottom end of the support frame 11, and a connecting rod 93 is provided inside the connecting hole 92. The bottom end of the connecting rod 93 is fixedly connected to the support plate 13, and a connecting block 94 is fixedly installed on the top of the connecting rod 93. A vertical second rack 95 is fixedly installed on both sides of the connecting block 94, and the second rack 95 is meshed and connected with the connecting tooth 91. When the connecting block 94 drives the second rack 95 to move its position, it is convenient to realize that the connecting tooth 91 drives the rotating rod 82 to rotate. A second elastic member 96 is installed between the bottom end of the connecting block 94 and the bottom end of the inner side of the support frame 11. The second elastic member 96 can be a spring or rubber, etc. In this embodiment, the second elastic member 96 is a spring, which is convenient for the connecting block 94 to be located when the support plate 13 does not support the product. The highest point on the inner side of the support frame 11 is convenient for resetting the connecting block 94. The auxiliary fixing assembly 8 is provided with two groups and is symmetrically installed on both sides of the support frame 11. After the support plate 13 supports the product, during the hoisting process, the support plate 13 can be moved downward relative to the support frame 11 under the action of the product's own gravity, and the second rack 95 can be further driven by the connecting tooth 91 to rotate, so that the clamping plate 895 is convenient for approaching the product surface, and the auxiliary fixing operation on the side of the product is realized to avoid the shaking of the product on the support plate 13 during the hoisting process, which affects the hoisting effect; a positioning hole 14 is provided on the bottom side of one end of the support frame 11 away from the clamping plate 12, and a vertically installed positioning rod 15 is fixedly installed on the support plate 13, and the positioning rod 15 passes through the positioning hole 14 and extends into the inner side of the support frame 11; the positioning rod 15 and the positioning hole 14 can ensure that the support plate 13 is always horizontal, and the supporting effect is guaranteed, and the operation is convenient.

[0055] The working principle of the present invention is:

[0056] In the present invention, the first driving member 65 and the second driving member 72 are first controlled to adjust the positions of the support frame 10 and the support frame 11 to facilitate the use of products of different lengths and widths. Then, the second driving member 72 is controlled to make the clamping plate 12 on the support frame 11 close to the side of the product, and the support plate 13 can support the product. Then, the product is lifted by the bracket 1. Under the action of the product's own gravity, the support plate 13 can move downward relative to the support frame 11. The rotating rod 82 can be rotated by the second rack 95 and the connecting tooth 91, and the first short rod 84 and the connecting plate 86 can be further rotated. The clamping plate 895 is close to the product surface and in close contact with the product surface, thereby realizing auxiliary fixing operation, avoiding shaking of the product during lifting, and improving lifting efficiency and lifting effect.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lifting fixture for semi-trailer production, comprising a bracket (1) and a lifting mechanism, characterized in that: The lifting mechanism includes: A connecting frame (2) is fixedly mounted on the top of the bracket (1); a fixed frame (3) is fixedly mounted on the bottom of the bracket (1); a movable frame (4) is mounted inside the fixed frame (3); a movable plate (5) is provided inside the movable frame (4); the movable plate (5) is slidably connected to the movable frame (4); two movable plates (5) and the movable frame (4) are provided and are divided into two groups and are centrally symmetrically mounted on the fixed frame (3); an adjusting component (6) is mounted on the fixed frame (3); the adjusting component (6) is connected to the movable frame (4) and is used to drive the movable frame (4) to move along the inner side of the fixed frame (3); A support frame (10) is fixedly installed at one end of the movable frame (4) away from the fixed frame (3), a support frame (11) is provided at the bottom end of the support frame (10), a movable component (7) is installed between the support frame (11) and the support frame (10), and is used to adjust the position of the support frame (11) on the bottom side of the support frame (10), a vertical clamping plate (12) is installed on the support frame (11), a support plate (13) is provided on the bottom side of the support frame (11), an auxiliary fixing component (8) is installed on the side of the support frame (11), and a connecting component (9) is installed between the support plate (13) and the auxiliary fixing component (8), and is used to make the auxiliary fixing component (8) closely contact with the surface of the product under the action of the gravity of the product after the support plate (13) supports the product, so as to further fix the product; The auxiliary fixing assembly (8) comprises: The limiting groove (81) is located on the side of the support frame (11), a rotating rod (82) is fixedly installed inside the limiting groove (81), and two ends of the rotating rod (82) are rotatably connected to the inner wall of the limiting groove (81). A fixing frame (83) is provided outside the limiting groove (81), and the fixing frame (83) is fixedly installed on the outer wall of the support frame (11). A first short rod (84) is installed inside the fixing frame (83), and the first short rod (84) is rotatably connected to the fixing frame (83). A rotating tooth (85) is fixedly installed in the middle of the first short rod (84), and the rotating tooth (85) is matched and connected to the rotating rod (82). A connecting plate (86) is also fixedly installed on the outside of the first short rod (84), and a second short rod (87) is installed at one end of the connecting plate (86) away from the fixed frame (83). The second short rod (87) is rotatably connected to the connecting plate (86). The fixed frame (83), the first short rod (84), the second short rod (87) and the connecting plate (86) are each provided with two, and are divided into two groups and installed in parallel on the outer wall of the support frame (11). A fixing plate (88) is fixedly installed on the two second short rods (87), and a clamping assembly (89) is fixedly installed on one end of the fixing plate (88) for close contact with the surface of the product. The connection assembly (9) comprises: A connecting tooth (91) is fixedly mounted on the outer side of one end of the rotating rod (82); a connecting hole (92) is provided in the middle of the bottom end of the supporting frame (11); a vertically mounted connecting rod (93) is provided inside the connecting hole (92); the bottom end of the connecting rod (93) is fixedly connected to the supporting plate (13); a connecting block (94) is fixedly mounted on the top end of the connecting rod (93); a second rack (95) is fixedly mounted on the side of the connecting block (94); the second rack (95) is meshedly connected to the connecting tooth (91); a second elastic member (96) is installed between the bottom end of the connecting block (94) and the supporting frame (11); and the second elastic member (96) is sleeved on the outer side of the connecting rod (93).

2. The lifting fixture for semitrailer production according to claim 1, characterized in that: The regulating component (6) comprises: A first rack (61) is fixedly mounted on a side of the movable frame (4). The first rack (61) is located inside the fixed frame (3). A rotating rod (62) is mounted in the middle of the fixed frame (3). The rotating rod (62) is rotatably connected to the fixed frame (3). A rotating tooth (63) is fixedly mounted on the outer side of the bottom end of the rotating rod (62). The rotating tooth (63) is meshed with the first rack (61). The rotating tooth (63) is located inside the fixed frame (3). A transmission tooth (64) is fixedly mounted on the top of the rotating rod (62). A first driving member (65) is fixedly mounted on the top of the fixed frame (3). A transmission rod (66) is fixedly mounted on the output end of the first driving member (65). The transmission rod (66) is matched and connected with the transmission tooth (64).

3. The lifting fixture for semitrailer production according to claim 2, characterized in that: The mobile assembly (7) comprises: The slide groove (71) is located at the bottom side of the support frame (10), and a second driving member (72) is fixedly installed in the middle of the inner side of the support frame (10). A driving rod (73) is fixedly installed at the output end of the second driving member (72). One end of the driving rod (73) away from the second driving member (72) is rotatably connected to the inner wall of the support frame (10), and a moving block (74) is installed on the outer side of the driving rod (73). The shape of the moving block (74) is an inverted convex shape. The bottom end of the moving block (74) is slidably connected to the slide groove (71), the moving block (74) is threadedly connected to the driving rod (73), and the bottom side of the moving block (74) is fixedly connected to the top of the support frame (11).

4. The lifting fixture for semitrailer production according to claim 3, characterized in that: The clamping assembly (89) comprises: The limiting plate (891) is fixedly mounted on one end of the fixing plate (88) and is vertically shaped. A limiting hole (892) is provided on the limiting plate (891). A limiting rod (893) is provided inside the limiting hole (892). The limiting rod (893) is horizontally shaped. A baffle plate (894) is fixedly mounted on one end of the limiting rod (893) close to the fixing plate (88). A clamping plate (895) is fixedly mounted on one end of the limiting rod (893) away from the baffle plate (894). The clamping plate (895) ) is fixedly installed on the surface of the clamping plate (896), and the shape of the clamping plate (896) is wavy. A first elastic member (897) is installed between the clamping plate (895) and the limiting plate (891), and the first elastic member (897) is sleeved on the outside of the limiting rod (893); the limiting hole (892), the limiting rod (893), the baffle (894), the clamping plate (895) and the first elastic member (897) are all provided with a plurality of and are evenly distributed on the limiting plate (891).

5. The lifting fixture for semitrailer production according to claim 4, characterized in that: A positioning hole (14) is provided on the bottom side of one end of the support frame (11) away from the clamping plate (12), and a vertically mounted positioning rod (15) is fixedly mounted on the support plate (13). The positioning rod (15) passes through the positioning hole (14) and extends into the inner side of the support frame (11).

6. The lifting fixture for semitrailer production according to claim 1, characterized in that: A positioning groove (16) is provided on the inner wall of the fixed frame (3); a sliding bar (17) is fixedly installed on the side of the movable frame (4); the sliding bar (17) is slidably connected to the positioning groove (16) and is used to limit the moving track of the movable frame (4) inside the fixed frame (3); and a positioning plate (18) is fixedly installed on the outer side of one end of the movable frame (4) close to the movable plate (5).

Images