Engine assembly tool with adjustment function

Abstract

The present invention relates to the field of engine assembly technology, and in particular to an engine assembly tool with an adjustment function. The tool comprises a bracket, the bracket is fixed with a symmetrically distributed first fixed rod, the first fixed rod is slidably connected to a first sliding frame, a first spring is installed between the connecting block of the first sliding frame and the bracket, the first sliding frame is slidably provided with a symmetrically distributed first sliding rod, the bracket is provided with a positioning mechanism, the first sliding frame is provided with a spraying mechanism, the first sliding frame is provided with a clamping mechanism, the clamping mechanism is provided with a synchronous tightening mechanism, and the synchronous tightening mechanism is provided with a separation mechanism. The present invention positions the crankshaft and the crankcase by the first sliding rod and the sliding column, improves the accuracy of the crankshaft installation, avoids the crankshaft from shaking and misaligning during the installation process, realizes the synchronous tightening of the bolts on the crankshaft cover by the synchronous tightening mechanism, avoids uneven force on the crankshaft, and avoids the bolts from slipping by the separation mechanism, thereby achieving the effect of protecting the bolts and the crankcase.

Description

Technical Field

[0001] The present invention relates to the technical field of engine assembly, and in particular to an engine assembly tool with an adjustment function. Background Art

[0002] The assembly of the engine is divided into multiple operation links. Since the crankshaft is the most important component in the engine, the engine assembly crankshaft operation is particularly important.

[0003] When the engine of a (heavy-loaded vehicle) is repaired, the operator assembles the disassembled engine parts. During the crankshaft assembly process, the crankshaft needs to be placed on the crankcase, and then the crankshaft cover is installed in sequence. During this process, the crankshaft is prone to sliding, which can easily cause the crankshaft to be misaligned relative to the crankcase. The crankshaft cover needs to be tightened with bolts in sequence for installation. The crankshaft cover where the bolts are tightened first squeezes the crankshaft, resulting in uneven force on the crankshaft, which can easily cause the crankshaft to tilt, making the crankshaft unable to work normally and affecting its service life.

[0004] In response to the shortcomings of existing technologies, we have developed an engine assembly tool with adjustment function. Summary of the Invention

[0005] In order to overcome the above problems, the present invention provides an engine assembly tool with an adjustment function.

[0006] The technical solution of the present invention is: an engine assembly tool with an adjustment function, including a bracket, the bracket is fixedly connected to a control panel through a connecting frame, the bracket is fixedly connected to a symmetrically distributed first fixing rod through a connecting block, the symmetrically distributed first fixing rods are all slidably connected to a first sliding frame, a first spring is installed between the first sliding frame and the connecting block of the bracket, the first sliding frame is fixedly connected to a first fixing frame, a first gear is rotatably arranged between the first fixing frame and the first sliding frame through a rotating column, a symmetrically distributed first rack is slidably arranged in the first fixing frame, the first rack is meshed with the first gear, and the rotating column of the first gear is connected to the first fixing frame. A first torsion spring is installed, and the first sliding frame is slidingly provided with a symmetrically distributed first sliding rod, the first sliding rod is provided with a U-shaped groove, and a cylindrical rod is slidably provided at the U-shaped groove of the first sliding rod, and the U-shaped groove of the first sliding rod cooperates with the cylindrical rod on it to position and clamp the crankshaft to prevent the crankshaft from sliding and dislocating during installation. The bracket is provided with a positioning mechanism for positioning and clamping the crankcase, the first sliding frame is provided with a spraying mechanism for evenly spraying lubricating oil, the first sliding frame is provided with a clamping mechanism for clamping the crankshaft cover, the clamping mechanism is provided with a synchronous tightening mechanism for synchronously twisting bolts, and the synchronous tightening mechanism is provided with a separation mechanism for protecting the bolts.

[0007] Furthermore, the positioning mechanism includes a first electric push rod, which is fixed to the bracket through a connecting block, the telescopic end of the first electric push rod is fixed to a second sliding frame, the second sliding frame is slidingly provided with symmetrically distributed sliding columns, a second spring is installed between the symmetrically distributed sliding columns, the bracket is provided with a sliding groove, and symmetrically distributed sliding blocks are slidingly provided in the sliding groove of the bracket, the sliding columns are slidably connected to the sliding blocks, the side walls of the bracket are fixed with symmetrically distributed limit blocks, the second sliding frame is slidably connected to the limit blocks, and the limit blocks are in contact with the sliding columns.

[0008] Furthermore, the upper portion of the sliding post is made of an elastic material for increasing the friction between the sliding post and the crankcase.

[0009] Furthermore, the spraying mechanism includes a symmetrically distributed rotating disk, which is rotatably arranged on the first sliding frame, and a nozzle is rotatably arranged between the symmetrically distributed rotating disks, the nozzle is located at the eccentric point of the rotating disk, and the side wall of the nozzle is evenly provided with a nozzle for spraying lubricating oil to the rotating position of the crankshaft, a second torsion spring is installed between the nozzle and the rotating disk, the nozzle is fixed with a symmetrically distributed L-shaped rod, the first sliding frame is symmetrically fixed with an arc plate for limiting the L-shaped rod, the first sliding frame is fixed with a symmetrically distributed second fixed frame, a second gear is rotatably arranged in the second fixed frame, a second rack is slidably provided in the second fixed frame, the second rack is meshed with the second gear, the second rack is provided with a protrusion that cooperates with the second fixed frame, the connecting block of the bracket is fixed with a second electric push rod, and the telescopic end of the second electric push rod is fixed with the second rack.

[0010] Furthermore, the clamping mechanism includes a symmetrically distributed second fixed rod, the second fixed rod is fixed to the first sliding frame, the symmetrically distributed second fixed rod is slidingly provided with a sliding plate, the first sliding frame is symmetrically fixed with a third electric push rod, the telescopic end of the third electric push rod is fixed to the sliding plate through a connecting rod, the sliding plate is provided with symmetrically distributed protrusions, the protrusions of the sliding plate are symmetrically slidably provided with a third sliding frame for clamping the crankshaft cover, the sliding plate is fixed with a symmetrical fourth electric push rod through a connecting block, and the telescopic ends of the symmetrical fourth electric push rods are respectively fixed to adjacent third sliding frames.

[0011] The first gear is fixedly mounted on the drive means, and the second gear is mounted on the drive means, wherein the first gear is mounted on the drive means, and the second gear is mounted on the drive means.

[0012] Furthermore, a magnet block for adsorbing the bolt is provided in the hexagonal nut of the second sliding rod.

[0013] Furthermore, the separation mechanism includes a first locking block evenly distributed, a third fixing rod is provided with a spline groove, the third fixing rod is rotatably connected to the first threaded rod, the first locking block is arranged at the spline groove of the third fixing rod, the first threaded rod is fixed with a second locking block, the second locking block cooperates with the first locking block to protect the rotating and tightening bolt, and the gear box is provided with an adjustment component for changing the pressure between the first locking block and the second locking block.

[0014] Furthermore, the adjustment assembly includes symmetrically distributed fixed blocks, which are fixed to the gear box, wherein one of the fixed block bolts is provided with a second threaded rod, and the other fixed block bolt is provided with a third sliding rod, and the lower ends of the second threaded rod and the third sliding rod are rotatably provided with a second fixed plate, the second fixed plate is rotatably connected to the third fixed rod, the first locking block is rotatably provided with a rotating ring, and a fourth spring is installed between the second fixed plate and the rotating ring of the first locking block.

[0015] Furthermore, a side wall of the third sliding rod is provided with a scale for indicating the maximum torque.

[0016] The beneficial effects of the present invention are as follows: the present invention improves the accuracy of crankshaft installation by centering the crankshaft and the crankcase, avoids crankshaft shaking and misalignment during installation, applies lubricating oil to the crankshaft through a spraying mechanism, reduces the friction between the crankshaft and the crankcase, and facilitates the rotation of the crankshaft; the synchronous tightening mechanism uses synchronously rotating bolts to make the pressure of the crankshaft cover on the crankshaft uniform and equal; the separation mechanism uses the first locking block and the second locking block to transmit power, so that after the bolt is tightened to a specified torque, the two release power transmission, avoid excessive torque on the bolt, causing the bolt to slip, and achieve the effect of protecting the bolt and the threaded groove on the crankcase; at the same time, the rotation of the second threaded rod adjusts the maximum torque of power transmission between the first locking block and the second locking block, so that the device is suitable for the assembly of engines of different models, thereby improving its applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the first sliding frame of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the first sliding rod of the present invention.

[0020] Figure 4 It is a cross-sectional view of the positioning mechanism of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the spraying mechanism of the present invention.

[0022] Figure 6 It is a partial enlarged view of the spraying mechanism of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the sliding plate of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention.

[0025] Figure 9 It is a bottom view of the clamping mechanism of the present invention.

[0026] Figure 10 It is a cross-sectional view of the synchronous tightening mechanism of the present invention.

[0027] Figure 11 It is a cross-sectional view of the fixing frame of the present invention.

[0028] Figure 12 It is a structural schematic diagram of the third sliding rod of the present invention.

[0029] Explanation of the accompanying symbols: 1. bracket, 101. control panel, 102. first fixing rod, 103. first spring, 104. first sliding frame, 105. first fixing frame, 106. first gear, 107. first rack, 108. first torsion spring, 109. first sliding rod, 2. first electric push rod, 201. second sliding frame, 202. sliding column, 203. second spring, 204. sliding block, 205. limiting block, 3. rotating disk, 301. nozzle, 302. second torsion spring, 303. L-shaped rod, 304. arc plate, 305. second fixing frame, 306. second gear, 308 , second electric push rod, 307, second rack, 4, second fixed rod, 401, sliding plate, 402, third electric push rod, 403, third sliding frame, 404, fourth electric push rod, 5, first threaded rod, 501, first fixed plate, 502, second sliding rod, 503, fixed frame, 5031, third spring, 504, gear box, 505, servo motor, 506, third fixed rod, 507, third gear, 6, first locking block, 601, second locking block, 7, fixed block, 701, second threaded rod, 702, third sliding rod, 703, second fixed plate, 704, fourth spring. DETAILED DESCRIPTION

[0030] 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.

[0031] An engine assembly tool with adjustment function, referring to Figures 1-12As shown, it includes a bracket 1, which is connected to a control panel 101 by a connecting frame bolt. The bracket 1 has two first fixed rods 102 welded to it through a connecting block. The two first fixed rods 102 are slidably connected to a first sliding frame 104. A first spring 103 is fixed between the first sliding frame 104 and the connecting block of the bracket 1. The first spring 103 is sleeved on the first fixed rod 102. The first sliding frame 104 is bolted to a first fixed frame 105. The first fixed frame 105 and the first sliding frame 104 are rotatably connected by a first gear 106 through a rotating column. Two circumferentially symmetrical first racks 107 are slidably connected in the first fixed frame 105. The two first racks 107 are meshed with the first gear 106. A first torsion spring 108 is fixed between the rotating column of the first gear 106 and the first fixed frame 105. The first sliding frame 104 is slidably connected to two The first sliding rod 109, the lower end of the first sliding rod 109 is provided with a U-shaped groove, and the U-shaped groove of the first sliding rod 109 is slidably connected with a cylindrical rod, and the crankshaft is installed to the U-shaped groove of the two first sliding rods 109. The first gear 106 drives the two first sliding rods 109 to squeeze and position the crankshaft through the connected parts to prevent sliding and dislocation during the installation of the crankshaft, thereby improving the installation accuracy of the crankshaft. The bracket 1 is provided with a positioning mechanism for positioning and clamping the crankcase, and the first sliding frame 104 is provided with a spraying mechanism for evenly spraying lubricating oil, which is convenient for subsequent rotation of the crankshaft for installation of other components. The first sliding frame 104 is provided with a clamping mechanism for clamping the crankshaft cover, and the clamping mechanism is provided with a synchronous tightening mechanism for synchronously twisting the bolts to avoid uneven force on the crankshaft during the fixing of the crankshaft. The synchronous tightening mechanism is provided with a separation mechanism for protecting the bolts to avoid bolt slippage.

[0032] Reference Figure 4 As shown, the positioning mechanism includes a first electric push rod 2, which is connected to the bracket 1 by a connecting block bolt, and the telescopic end bolt of the first electric push rod 2 is connected to the second sliding frame 201, and the second sliding frame 201 is slidably connected to two sliding columns 202, and the upper part of the sliding column 202 is made of an elastic material for increasing the friction between it and the crankcase. A second spring 203 is fixed between the two sliding columns 202, and the second spring 203 is sleeved on the second sliding frame 201, and the bracket 1 is provided with a sliding groove, and two left-right symmetrical sliding blocks 204 are slidably connected in the sliding groove of the bracket 1, and the sliding column 202 is slidably connected to the sliding block 204, and the bracket 1 is welded with two left-right symmetrical limit blocks 205, and the second sliding frame 201 is slidably connected to the limit block 205, and the limit block 205 contacts and cooperates with the sliding column 202. The first electric push rod 2 works to drive the two sliding columns 202 to contact and squeeze the crankcase, completing the centering limit of the crankcase, and then cooperating with the centering of the crankshaft to facilitate the subsequent accurate installation of the crankshaft.

[0033] Reference Figure 5 and Figure 6As shown, the spraying mechanism includes two rotating disks 3, which are rotatably arranged at the two ends of the first sliding frame 104 respectively. A nozzle 301 is rotatably provided between the two rotating disks 3. The nozzle 301 is located at the eccentric position of the rotating disk 3. The side walls of the nozzle 301 are evenly provided with nozzles for applying lubricating oil to the rotating part of the crankshaft. The friction between the crankshaft and the crankcase coated with lubricating oil is reduced, which facilitates the subsequent rotation of the crankshaft for the installation of other parts. A second torsion spring 302 is fixed between the nozzle 301 and the rotating disk 3. L-shaped rods 303 are welded at both ends of the nozzle 301. The first sliding frame 104 is welded with two arc plates 304. The arc plate 304 is used to limit the rotation of the L-shaped rod 303. The first sliding frame 104 is welded with two left-right symmetrical second fixed frames 305. The second fixed frame 305 is rotatably connected to the second gear 306. The second rack 307 is slidably connected to the second fixed frame 305. The second rack 307 is engaged with the second gear 306. The second rack 307 is provided with a protrusion that cooperates with the second fixed frame 305. The connecting block of the bracket 1 is bolted to the second electric push rod 308. The telescopic end of the second electric push rod 308 is fixed to the second rack 307. The nozzle 301 rotates with the rotating disk 3, so that the nozzle 301 applies lubricating oil to the crankshaft.

[0034] Reference Figure 7-Figure 9 As shown, the clamping mechanism includes two second fixing rods 4, the second fixing rods 4 are welded to the first sliding frame 104, the two second fixing rods 4 are slidably connected with a sliding plate 401, the first sliding frame 104 is bolted with two left-right symmetrical third electric push rods 402, the telescopic ends of the third electric push rods 402 are welded to the sliding plate 401 through connecting rods, the sliding plate 401 is provided with symmetrically distributed protrusions, the protrusions of the sliding plate 401 are slidably connected to two third sliding frames 403, the sliding plate 401 is bolted with two circumferentially symmetrical fourth electric push rods 404 through connecting block bolts, the two fourth electric push rods 404 are respectively fixed to the two third sliding frames 403, and the two third sliding frames 403 move synchronously to clamp the crankshaft cover, so as to facilitate the subsequent precise installation of the crankshaft cover.

[0035] Reference Figure 7 and Figure 10-12As shown, the synchronous tightening mechanism includes seven evenly distributed first threaded rods 5, the first threaded rods 5 are threadedly connected to the sliding plate 401, the first threaded rods 5 are slidably connected to the first fixed plate 501, the first threaded rods 5 are provided with a convex ring for limiting the first fixed plate 501, the first fixed plate 501 is rotatably connected to two front and rear symmetrical second sliding rods 502, the first threaded rod 5 is located in the middle of the two adjacent second sliding rods 502, and the second sliding rod 502 passes through the sliding plate 401 and is slidably connected thereto, the lower end of the second sliding rod 502 is provided with a hexagonal nut, and the hexagonal nut of the second sliding rod 502 is provided with a magnet block for adsorbing bolts, the first threaded rod 5 is rotatably connected to the fixing frame 503, and two pairs of third springs 5031 are fixed between the fixing frame 503 and the adjacent first fixed plate 501, and the two third springs 5031 are respectively sleeved on the corresponding On the adjacent second sliding rod 502, the fixing frame 503 is bolted to the gear box 504, and the gear box 504 is bolted to the servo motor 505 through the connecting frame. The servo motor 505 is connected to the rotating shaft at the upper end of the gear box 504 through a coupling. The first threaded rod 5 is provided with a third fixing rod 506, and the third fixing rod 506 is fixed to the rotating shaft at the lower end of the gear box 504. The second sliding rod 502 passes through the fixing frame 503 and is rotatably connected thereto. A slide groove is provided on the upper part of the second sliding rod 502, and the fixing frame 503 is provided with three mutually meshing third gears 507, one of which is fixed to the first threaded rod 5, and the other two third gears 507 slide respectively in the slide grooves of the two second sliding rods 502. The servo motor 505 drives the second sliding rod 502 to rotate synchronously and tighten the bolts to make the extrusion force of the crankshaft cover on the crankshaft uniform and equal.

[0036] Reference Figure 10 and Figure 12 As shown, the separation mechanism includes seven evenly distributed first locking blocks 6, the third fixing rod 506 is provided with a spline groove, the third fixing rod 506 is rotatably connected to the first threaded rod 5, the first locking block 6 is arranged at the spline groove of the third fixing rod 506, the gear box 504 is provided with an adjustment component, the tightening force of the engine bolts of different models is different, and the assembly of different models of engines is adapted to the adjustment component. The first threaded rod 5 is welded with a second locking block 601, and the second locking block 601 cooperates with the first locking block 6. When the bolt is tightened to the specified torque, the power transmission between the second locking block 601 and the first locking block 6 is disconnected to prevent the bolt from slipping.

[0037] Reference Figure 7 、 Figure 11 and Figure 12As shown, the adjustment assembly includes symmetrically distributed fixed blocks 7, which are welded to the gear box 504, one of the fixed blocks 7 is bolted to the second threaded rod 701, and the other fixed block 7 is screwed and slidably connected to the third sliding rod 702, and the side wall of the third sliding rod 702 is provided with a scale for indicating the maximum torque, the lower ends of the second threaded rod 701 and the third sliding rod 702 are rotatably connected to the second fixed plate 703, the second fixed plate 703 is rotatably connected to the third fixed rod 506, the first locking block 6 is rotatably connected to the rotating ring, and a fourth spring 704 is fixed between the second fixed plate 703 and the rotating ring of the first locking block 6, the fourth spring 704 is sleeved on the third fixed rod 506, and the pressure between the second locking block 601 and the first locking block 6 is changed by changing the compression deformation of the fourth spring 704.

[0038] The operator first starts the two fourth electric push rods 404 through the control panel 101. The two fourth electric push rods 404 drive the two third sliding frames 403 to move closer together to clamp the crankshaft cover. After the crankshaft cover is fixed, the magnet block of the hexagonal nut on the second sliding rod 502 is attracted so that the bolt of the crankshaft cover is located in the hexagonal nut of the second sliding rod 502. At this time, the lower end of the bolt does not extend out of the crankshaft cover, which is convenient for the subsequent installation of the crankshaft cover.

[0039] After the crankshaft cover is fixed, the operator pulls the cylindrical rods of the two first sliding rods 109, and by pulling a single first sliding rod 109, the first sliding rod 109 drives the other first sliding rod 109 to move through the two first racks 107 and the first gear 106, thereby changing the spacing between the two first sliding rods 109 and placing the crankshaft into the U-shaped groove of the two first sliding rods 109. Then the operator releases the first sliding rod 109, and under the action of the first torsion spring 108, the first gear 106 rotates through the two first racks 107, driving the two first sliding rods 109 away from each other. The two first sliding rods 109 contact and squeeze the crankshaft, so that it is centrally suspended on the two first sliding rods 109.

[0040] In the initial state, the upper end surface of the sliding column 202 is parallel to the upper end surface of the bracket 1, and then the operator starts the first electric push rod 2 through the control panel 101. The first electric push rod 2 drives the second sliding frame 201 and the two sliding columns 202 to move upward, and the two sliding columns 202 move upward and extend into the piston chamber of the crankcase, while the sliding column 202 moves out of contact with the limit block 205. Under the action of the second spring 203, the two sliding columns 202 move away from each other and contact the piston chamber of the crankcase to limit and fix the crankcase to avoid misalignment of the crankcase and the crankshaft when installing the crankshaft.

[0041] After the above-mentioned parts are fixed, the nozzle of the nozzle 301 is directed toward the crankshaft. The operator applies pressure to the nozzle 301 by connecting the external pressure pump to the nozzle 301 and starts the second electric push rod 308 through the control panel 101. The second electric push rod 308 drives the second rack 307 to move downward. The second rack 307 drives the rotating disk 3 and the nozzle 301 to rotate through the second gear 306, so that the lubricating oil squeezed out by the nozzle of the nozzle 301 is evenly applied to the contact area between the crankshaft and the crankcase, reducing the friction between the crankshaft and the crankcase, making it easier for the operator to reduce the wear between the crankshaft and the crankcase when rotating other parts later. In the initial state, the second torsion spring 302 applies a torsional force to the nozzle 301, so that the L-shaped rod 303 is close to the curved plate 304.

[0042] When the arc plate 304 releases the limit on the disengagement of the L-shaped rod 303, the nozzle 301 rotates under the action of the second torsion spring 302, and the nozzle head of the nozzle 301 moves away from the center line of the crankshaft. At the same time, the pressure in the nozzle 301 stops, and the application of lubricating oil to the crankshaft is completed. At this time, the protrusion of the second rack 307 contacts the second fixed frame 305.

[0043] Subsequently, the second electric push rod 308 continues to work, and the second electric push rod 308 drives the first sliding frame 104 and the parts thereon to move together through the protrusion of the second rack 307 and the second fixed frame 305, and compresses the first spring 103. The first sliding frame 104 drives the two first sliding rods 109 to move, so that the centrally fixed crankshaft moves downward until it is placed in the centrally fixed crankcase. The two sliding columns 202 and the two first sliding rods 109 cooperate to make the crankshaft and the crankcase be in a centered limited state, which facilitates the precise installation of the crankshaft on the crankcase and avoids the crankshaft sliding on the crankcase during assembly, causing the crankshaft to be misaligned.

[0044] After the crankshaft is placed, the operator starts the third electric push rod 402 through the control panel 101. The third electric push rod 402 drives the sliding plate 401 and the parts connected thereto to move downward, and places the crankshaft cover clamped by the two third sliding frames 403 onto the crankshaft. Then the operator starts the servo motor 505 through the control panel 101. The servo motor 505 drives the seven third fixed rods 506 to rotate through the gear box 504. The rotation of the third fixed rod 506 drives the first locking block 6 to rotate. Under the action of the fourth spring 704, the first locking block 6 cooperates with the second locking block 601. The first locking block 6 drives the first threaded rod 5 to rotate through the second locking block 601. The threaded rod 5 and the sliding plate 401 are threadedly matched, so that the first threaded rod 5, the fixing frame 503 and the parts connected thereto move downward together. The downward movement of the fixing frame 503 squeezes the third spring 5031, so that the first fixing plate 501 drives the two second sliding rods 502 and the two bolts to move downward, and the third spring 5031 applies downward pressure to the bolts. At the same time, the first threaded rod 5 rotates through the three third gears 507 to drive the two second sliding rods 502 and the two bolts to rotate synchronously, so that the bolts are tightened synchronously and installed on the crankcase to fix the crankshaft cover, thereby avoiding inconsistent tightening speed of the bolts on the crankshaft cover when installing the crankshaft cover, resulting in uneven force on the crankshaft and causing the crankshaft to tilt.

[0045] When the bolt reaches the tightening torque, that is, the second sliding rod 502 reaches the predetermined torque, the first locking block 6 cannot drive the second locking block 601 to rotate, and slippage occurs between the two, thereby protecting the bolts on the crankshaft cover to avoid bolt slippage due to excessive bolt tightening torque.

[0046] When the first locking block 6 cannot drive the second locking block 601 to rotate, the first locking block 6 moves upward to squeeze the fourth spring 704. During this process, the first locking block 6 and the second locking block 601 cooperate to make a sound, prompting the operator to complete the synchronous tightening of the bolts, thereby protecting the bolts and the threaded grooves on the crankcase and reducing unnecessary economic losses.

[0047] After the crankshaft cover is fixed, the operator pulls the cylindrical rod of the first sliding rod 109 and rotates the crankshaft to disengage the crankshaft from the U-shaped groove of the first sliding rod 109. Then the operator starts the reverse operation of the above components through the control panel 101 to complete the installation of the engine crankshaft.

[0048] When converting to different models of engines, the torsional force of the bolts on the crankshaft cover is different. The operator adjusts the position of the third sliding rod 702 by rotating the second threaded rod 701. The movement of the third sliding rod 702 changes the compression amount of the fourth spring 704, so that the torsional force transmitted between the first locking block 6 and the second locking block 601 changes. During this process, the scale on the third sliding rod 702 indicates the torsional force that can be transmitted between the first locking block 6 and the second locking block 601. The operator makes corresponding adjustments based on actual conditions.

[0049] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An engine assembly tool with an adjustment function, characterized by: The invention comprises a bracket (1), wherein the bracket (1) is fixedly connected to a control panel (101) via a connecting frame, the bracket (1) is fixedly connected to symmetrically distributed first fixing rods (102) via a connecting block, the symmetrically distributed first fixing rods (102) are all slidably connected to a first sliding frame (104), a first spring (103) is installed between the first sliding frame (104) and the connecting block of the bracket (1), the first sliding frame (104) is fixedly connected to a first fixing frame (105), a first gear (106) is rotatably provided between the first fixing frame (105) and the first sliding frame (104) via a rotating column, a symmetrically distributed first rack (107) is slidably provided in the first fixing frame (105), the first rack (107) is meshed with the first gear (106), and the rotation of the first gear (106) A first torsion spring (108) is installed between the column and the first fixed frame (105), and the first sliding frame (104) is slidably provided with a symmetrically distributed first sliding rod (109), the first sliding rod (109) is provided with a U-shaped groove, and a cylindrical rod is slidably provided at the U-shaped groove of the first sliding rod (109), the U-shaped groove of the first sliding rod (109) cooperates with the cylindrical rod on it to position and clamp the crankshaft to prevent the crankshaft from sliding and dislocating during installation, the bracket (1) is provided with a positioning mechanism for positioning and clamping the crankcase, the first sliding frame (104) is provided with a spraying mechanism for uniformly spraying lubricating oil, the first sliding frame (104) is provided with a clamping mechanism for clamping the crankshaft cover, the clamping mechanism is provided with a synchronous tightening mechanism for synchronously twisting the bolts, and the synchronous tightening mechanism is provided with a separation mechanism for protecting the bolts.

2. The engine assembly tool with adjustment function according to claim 1, characterized in that: The positioning mechanism includes a first electric push rod (2), the first electric push rod (2) is fixed to the bracket (1) through a connecting block, the telescopic end of the first electric push rod (2) is fixed to the second sliding frame (201), the second sliding frame (201) is slidably provided with symmetrically distributed sliding columns (202), a second spring (203) is installed between the symmetrically distributed sliding columns (202), the bracket (1) is provided with a sliding groove, a symmetrically distributed sliding block (204) is slidably provided in the sliding groove of the bracket (1), the sliding column (202) and the sliding block (204) are slidably connected, the side wall of the bracket (1) is fixed with a symmetrically distributed limit block (205), the second sliding frame (201) is slidably connected to the limit block (205), and the limit block (205) contacts and cooperates with the sliding column (202).

3. The engine assembly tool with adjustment function according to claim 2, characterized in that: The upper portion of the sliding column (202) is made of an elastic material for increasing the friction between the sliding column and the crankcase.

4. The engine assembly tool with adjustment function according to claim 1, characterized in that: The spraying mechanism comprises symmetrically distributed rotating disks (3), the rotating disks (3) are rotatably arranged on the first sliding frame (104), a nozzle (301) is rotatably arranged between the symmetrically distributed rotating disks (3), the nozzle (301) is located at an eccentric position of the rotating disk (3), a nozzle for spraying lubricating oil to the rotating position of the crankshaft is evenly arranged on the side wall of the nozzle (301), a second torsion spring (302) is installed between the nozzle (301) and the rotating disk (3), the nozzle (301) is fixedly connected to a symmetrically distributed L-shaped rod (303), the first sliding frame (104) is symmetrically fixedly connected to a L-shaped rod (303) for limiting The first sliding frame (104) is fixed with a symmetrically distributed second fixed frame (305), a second gear (306) is rotatably provided in the second fixed frame (305), a second rack (307) is slidably provided in the second fixed frame (305), the second rack (307) is meshed with the second gear (306), the second rack (307) is provided with a protrusion that cooperates with the second fixed frame (305), the connecting block of the bracket (1) is fixed with a second electric push rod (308), and the telescopic end of the second electric push rod (308) is fixed with the second rack (307).

5. The engine assembly tool with adjustment function according to claim 1, characterized in that: The clamping mechanism includes a symmetrically distributed second fixing rod (4), the second fixing rod (4) is fixed to the first sliding frame (104), the symmetrically distributed second fixing rod (4) is slidably provided with a sliding plate (401), the first sliding frame (104) is symmetrically fixed with a third electric push rod (402), the telescopic end of the third electric push rod (402) is fixed to the sliding plate (401) through a connecting rod, the sliding plate (401) is provided with symmetrically distributed protrusions, the protrusions of the sliding plate (401) are symmetrically slidably provided with a third sliding frame (403) for clamping the crankshaft cover, the sliding plate (401) is fixed with a symmetrical fourth electric push rod (404) through a connecting block, and the telescopic ends of the symmetrical fourth electric push rods (404) are respectively fixed to adjacent third sliding frames (403).

6. The engine assembly tool with adjustment function according to claim 5, characterized in that: The synchronous tightening mechanism includes a uniformly distributed first threaded rod (5), the first threaded rod (5) is arranged on the sliding plate (401), the first threaded rod (5) is slidably provided with a first fixed plate (501), the first threaded rod (5) is provided with a convex ring for limiting the first fixed plate (501), the first fixed plate (501) is rotated with a symmetrically distributed second sliding rod (502), and the second sliding rod (502) passes through the sliding plate (401) and is slidably connected thereto, the second sliding rod (502) is provided with a hexagonal nut at one end close to the third sliding frame (403), the first threaded rod (5) is rotated with a fixed frame (503), and a fixing frame (503) is installed between the fixing frame (503) and the adjacent first fixed plate (501). A third spring (5031) is symmetrically distributed, the fixing frame (503) is fixedly connected to a gear box (504), the gear box (504) is fixedly connected to a servo motor (505) via a connecting frame, the servo motor (505) is fixedly connected to the rotating shaft at the upper end of the gear box (504), the first threaded rod (5) is provided with a third fixing rod (506), the third fixing rod (506) is fixedly connected to the rotating shaft at the lower end of the gear box (504), the second sliding rod (502) passes through the fixing frame (503) and is rotatably connected thereto, the upper part of the second sliding rod (502) is provided with a sliding groove, the sliding grooves of the first threaded rod (5) and the second sliding rod (502) are both provided with third gears (507), and adjacent third gears (507) are meshed.

7. The engine assembly tool with adjustment function according to claim 6, characterized in that: A magnet block for adsorbing the bolt is provided inside the hexagonal nut of the second sliding rod (502).

8. The engine assembly tool with adjustment function according to claim 6, characterized in that: The separation mechanism includes a first locking block (6) that is evenly distributed, a third fixing rod (506) provided with a spline groove, the third fixing rod (506) is rotatably connected to the first threaded rod (5), the first locking block (6) is arranged at the spline groove of the third fixing rod (506), the first threaded rod (5) is fixedly connected with a second locking block (601), the second locking block (601) cooperates with the first locking block (6) to protect the rotating and tightening bolt, and the gear box (504) is provided with an adjustment component for changing the pressure between the first locking block (6) and the second locking block (601).

9. The engine assembly tool with adjustment function according to claim 8, characterized in that: The adjustment assembly includes symmetrically distributed fixed blocks (7), the fixed blocks (7) are fixed to the gear box (504), one of the fixed blocks (7) is bolted with a second threaded rod (701), the other fixed block (7) is slidably provided with a third sliding rod (702), the lower ends of the second threaded rod (701) and the third sliding rod (702) are rotatably provided with a second fixed plate (703), the second fixed plate (703) is rotatably connected to the third fixed rod (506), the first locking block (6) is rotatably provided with a rotating ring, and a fourth spring (704) is installed between the second fixed plate (703) and the rotating ring of the first locking block (6).

10. The engine assembly tool with adjustment function according to claim 9, characterized in that: The side wall of the third sliding rod (702) is provided with a scale for indicating the maximum torque.

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