Clamp assembly of marine heavy-duty engine cylinder body

Abstract

The invention relates to the technical field of engine cylinder body machining, and provides a fixture assembly of a marine heavy-duty engine cylinder body, which comprises a fixture body, a clamping area is formed on one side of the fixture body, and a mounting area is formed on the other side of the fixture body; the jacking mechanism is arranged in the mounting area; the locking mechanism is detachably arranged in the mounting area, and the locking mechanism is arranged corresponding to the jacking mechanism; at the first working position, the locking mechanism is separated from the jacking mechanism; and at the second working position, the jacking mechanism jacks up the workpiece, and the locking mechanism is matched with the jacking mechanism to lock the jacking mechanism. The clamp body is designed to be provided with the clamping area and the mounting area, the jacking mechanism and the locking mechanism are both assembled in the mounting area, fine boring machining of the clamp body is avoided, jacking and wedging are guaranteed, and the high cost for manufacturing special machining equipment is saved.

Description

Technical Field

[0001] This invention relates to the field of engine cylinder block machining technology, and in particular to a jig assembly for a marine heavy-duty engine cylinder block. Background Technology

[0002] Marine heavy-duty engines are core components in the shipbuilding industry, and the machining quality of marine heavy-duty engines directly determines the engine's performance. Among the key processes, the milling of the stop face and thrust face is crucial. During machining, the workpiece is positioned with the cutting tool facing it, and the workpiece needs to be inverted on the fixture. Traditionally, the workpiece is manually clamped and positioned using its lower surface as the locating surface.

[0003] In the actual clamping and machining of engines, the correlation between the machining position and the upper plane of the workpiece in this process is particularly important. Therefore, machining errors in the workpiece's height will negatively affect the accuracy of this machining process. Furthermore, to ensure reliable clamping of the fixture, a composite wedge structure is typically used for locking. In existing technologies of the same type, mounting holes need to be precision-bored in the fixture body to install the wedge structure. These mounting holes include at least vertical push rod mounting holes and horizontal wedge mounting holes. When machining ordinary four-cylinder and six-cylinder automotive engine blocks, the horizontal boring length of the fixture body is usually no more than 1 meter, and the machining difficulty is not high. However, when clamping heavy-duty engines, due to the larger size of the fixture body, the precision boring holes required for the wedge structure installation require specialized precision machining equipment. Such equipment requires specialized design, is not suitable for mass production, has high precision requirements, and is heavy, resulting in extremely high costs. Summary of the Invention

[0004] This invention provides a fixture assembly for marine heavy-duty engine cylinder blocks, which solves the technical problems of high processing difficulty and high cost caused by the need for special equipment to perform precision boring of the fixture body during the clamping of marine heavy-duty engine cylinder blocks.

[0005] This invention provides a clamping assembly for a marine heavy-duty engine cylinder block, comprising: The clamp body has a clamping area on one side and an installation area on the other side. A lifting mechanism is provided in the installation area; A locking mechanism is detachably disposed in the installation area, and the locking mechanism is disposed corresponding to the lifting mechanism; In the first working position, the locking mechanism is separated from the lifting mechanism; In the second working position, the lifting mechanism lifts the workpiece, and the locking mechanism cooperates with the lifting mechanism to lock the lifting mechanism.

[0006] According to the present invention, a clamp assembly for a marine heavy-duty engine cylinder block is provided, wherein the clamp body comprises: Two side plates, the two side plates being arranged symmetrically along a first direction; A base is disposed at the bottom of the two side plates, and the base and the side plates together form the clamping area; A top plate is disposed on top of the side plate; The mounting area is formed on the side of the base away from the workpiece, and the mounting area includes: A receiving cavity having a lifting hole communicating with the clamping area; Guide holes are provided on both sides of the receiving cavity, and the guide holes are connected to the clamping area.

[0007] According to the present invention, a clamping assembly for a marine heavy-duty engine cylinder block includes a lifting mechanism comprising: A first driving part is disposed in the receiving cavity, and the first driving part has an extension rod that is movably inserted into the lifting hole; A lifting plate is disposed in the clamping area, and the lifting plate is connected to the end of the extension rod away from the first drive part; A guide rod is movably inserted into the guide hole, with one end of the guide rod connected to the lifting plate and the other end of the guide rod forming an inclined surface.

[0008] According to the present invention, a clamping assembly for a marine heavy-duty engine cylinder block includes a locking mechanism comprising: Mounting base, detachably mounted on the base; A wedge portion is disposed on the mounting base and arranged corresponding to the guide rod; the side of the wedge portion near the guide rod has an inclined surface that abuts against the end of the guide rod; A push-pull rod is provided along the first direction, and one end of the push-pull rod is connected to the wedge portion; The second drive unit has its output end connected to the end of the push-pull rod away from the wedge part, so that the push-pull rod moves in the first direction to change the position of the wedge part and realize the separation or engagement of the wedge part and the guide rod.

[0009] According to the present invention, a clamping assembly for a marine heavy-duty engine cylinder block further includes a plurality of clamping mechanisms, wherein the plurality of clamping mechanisms are spaced apart along the first direction on the side plate, and the clamping mechanisms include: The third drive unit is disposed on the top plate; A pressure plate is hinged to the side plate, and one end of the pressure plate is connected to the output end of the third drive unit, while the other end of the pressure plate extends out of the side plate and into the clamping area. The first starting lever is connected to one end of the pressure plate located inside the side plate; A first switch is disposed on the side panel; During the process from the first working position to the second working position, the third driving unit drives the pressure plate to rotate and press against the workpiece, and the pressure plate drives the first command lever to swing until the first command lever triggers the first switch.

[0010] A clamping assembly for a marine heavy-duty engine cylinder block according to the present invention further includes a conveying mechanism, the conveying mechanism comprising: A conveyor roller is disposed along the first direction on the side surface of the base near the workpiece; A stop block is provided at the end of the clamp body away from the loading port; A buffer is disposed on the side of the stop block closest to the workpiece.

[0011] A jig assembly for a marine heavy-duty engine cylinder block according to the present invention further includes a loading mechanism, the loading mechanism comprising: A feeding tray is provided on the conveyor roller conveyor; A hoisting limit bracket is installed at the end of the feeding tray away from the feeding direction; A limit pin is provided on the feeding tray.

[0012] A jig assembly for a marine heavy-duty engine cylinder block according to the present invention further includes: The second starting lever is located on the base; A second switch is located on the base; During the process of the workpiece reaching the first working position, the loading pallet pushes the second command lever, the second command lever swings and triggers the second switch to start the lifting mechanism.

[0013] A clamping assembly for a marine heavy-duty engine cylinder block according to the present invention further includes a positioning mechanism, the positioning mechanism comprising: A positioning pin is provided on the top plate, and the end of the positioning pin extends toward the side closer to the workpiece; A positioning block is disposed on the side of the top plate near the workpiece.

[0014] A jig assembly for a marine heavy-duty engine cylinder block according to the present invention further includes: A positioning umbilicus is provided on the side of the workpiece closest to the side plate; An anti-misinstallation switch is provided on the side plate, and the anti-misinstallation switch cooperates with the positioning pin.

[0015] The above-mentioned one or more technical solutions provided by the present invention have at least the following beneficial technical effects: The clamp body of the present invention is designed to have a clamping area and an installation area. The lifting mechanism and the locking mechanism are both mounted in the installation area, which avoids the need for precision boring of the clamp body. This ensures both lifting and wedging, and saves the high cost of manufacturing special processing equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is one of the schematic diagrams of the clamp assembly for the cylinder block of a marine heavy-duty engine provided in an embodiment of the present invention; Figure 2 This is a second schematic diagram of the clamp assembly for the cylinder block of a marine heavy-duty engine provided in an embodiment of the present invention; Figure 3 This is the third schematic diagram of the clamp assembly for the marine heavy-duty engine cylinder block provided in this embodiment of the invention; Figure 4 yes Figure 3 Cross-sectional view of AA in the middle; Figure 5 This is a schematic diagram of the base provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the locking mechanism provided in an embodiment of the present invention; Figure 7 yes Figure 3 Cross-sectional view of BB in the middle; Figure 8 This is a schematic diagram of the feeding mechanism provided in an embodiment of the present invention; Figure 9 yes Figure 3 Cross-sectional view of CC in the middle; Figure 10 yes Figure 3 Cross-sectional view of DD in the middle; Figure 11 yes Figure 8 Cross-sectional view of LL; Figure 12 This is a schematic diagram of workpiece processing provided in an embodiment of the present invention.

[0018] Figure label: 1. Fixture body; 11. Side plate; 12. Base; 121. Receiving cavity; 122. Lifting hole; 123. Guide hole; 13. Top plate; 14. Adjusting block; 2. Lifting mechanism; 21. First drive unit; 22. Lifting plate; 23. Guide rod; 3. Locking mechanism; 31. Mounting base; 32. Wedge part; 33. Push-pull rod; 34. Second drive part; 4. Clamping mechanism; 41. Third drive unit; 42. Pressure plate; 43. First command lever; 44. First switch; 5. Conveying mechanism; 51. Conveying roller conveyor; 511. Support plate; 512. Roller; 513. Fifth drive unit; 514. Transmission unit; 515. Limiting block; 52. Stop block; 53. Buffer; 54. External motorized roller conveyor; 6. Feeding mechanism; 61. Feeding pallet; 62. Lifting limit bracket; 63. Limit pin; 64. Support block; 65. Buffer block; 71. Second command lever; 72. Second switch; 81. Positioning pin; 82. Positioning block; 83. Movable pin; 91. Positioning umbilical cord; 92. Anti-misinstallation switch; 10. Auxiliary mechanism; 101. Side push-back part; 102. Side limit plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] The following is combined with Figures 1-12 A fixture assembly for a marine heavy-duty engine cylinder block, according to an embodiment of the present invention.

[0021] like Figure 1-3 As shown, an embodiment of the present invention provides a clamping assembly for a marine heavy-duty engine cylinder block, comprising: a clamping body 1, with a clamping area formed on one side and an installation area formed on the other side; a lifting mechanism 2 disposed in the installation area, the lifting mechanism 2 being used to move the workpiece in a vertical direction; and a locking mechanism 3 detachably disposed in the installation area, and the locking mechanism 3 being disposed corresponding to the lifting mechanism 2; in a first working position, the locking mechanism 3 is separated from the lifting mechanism 2; in a second working position, the lifting mechanism 2 lifts the workpiece, and the locking mechanism 3 cooperates with the lifting mechanism 2 to lock the lifting mechanism 2.

[0022] Specifically, the clamp body 1 of the present invention is designed to have a clamping area and an installation area. The lifting mechanism 2 and the locking mechanism 3 are both mounted in the installation area, which avoids the need for precision boring of the clamp body 1, thus ensuring the lifting and wedging are achieved, and saving the high cost of manufacturing special processing equipment.

[0023] In some possible implementations, the workpiece to be processed is the cylinder block of a marine V16 engine, and the length of the fixture body 1 is 2.4 meters. In this embodiment, the top surface of the workpiece is used as the positioning surface, and the fixture is clamped from bottom to top to unify the process datum with the design datum, thereby avoiding the influence of the workpiece's own height processing error on the processing accuracy and thus improving the processing accuracy.

[0024] It should be understood that the first working position is the initial placement position of the workpiece in the fixture body 1, and the second working position is the position when the workpiece is lifted and stably clamped by the lifting mechanism 2.

[0025] like Figure 1-5 As shown, a jig assembly for a marine heavy-duty engine cylinder block according to an embodiment of the present invention includes a jig body 1 comprising: two side plates 11 symmetrically arranged along a first direction; a base 12 disposed at the bottom of the two side plates 11, the base 12 and the side plates 11 forming a clamping area; and a top plate 13 disposed at the top of the side plates 11. The side of the base 12 away from the workpiece forms an installation area, which includes: a receiving cavity 121 having a lifting hole 122 communicating with the clamping area; and guide holes 123 disposed on both sides of the receiving cavity 121, the guide holes 123 communicating with the clamping area.

[0026] It should be understood that the first direction is the length direction of the fixture body or the workpiece.

[0027] In some possible implementations, an adjustment block 14 is also included. There are multiple adjustment blocks 14, which are disposed at the joint between the base 12 and the side plate 11. They are used to adjust the connection force between the base 12 and the side plate 11, improve the shear resistance between the side plate 11 and the base 12, and ensure the overall rigidity and accuracy of the fixture body 1.

[0028] It should be understood that the clamping area formed by the side plate 11 and the base 12 is a U-shaped groove structure. The openings at both ends are used for loading or unloading workpieces. The inner shape of the U-shaped groove structure matches the shape of the workpiece, which facilitates clamping and fixing the workpiece. The receiving cavity 121, lifting hole 122, and guide hole 123 on the base 12 are all reserved. That is, the installation space is reserved during the molding of the base 12. This avoids the need to drill precision mounting holes in the furniture body when the lifting mechanism 2 and locking mechanism 3 need to be installed later, saving the high cost of special equipment and the extra processing of the vertical lifting hole 122.

[0029] like Figure 4 As shown, a jig assembly for a marine heavy-duty engine cylinder block according to an embodiment of the present invention includes a lifting mechanism 2 comprising: a first drive unit 21 having an extension rod movably inserted into a lifting hole 122; a lifting plate 22 disposed in the clamping area, and the lifting plate 22 being connected to the end of the extension rod away from the first drive unit 21 for abutting the workpiece; and a guide rod 23 movably inserted into a guide hole 123, one end of the guide rod 23 being connected to the lifting plate 22, and the other end of the guide rod 23 forming an inclined surface.

[0030] In some possible implementations, the first drive unit 21 is a hydraulic cylinder or a pneumatic cylinder.

[0031] In some possible implementations, multiple first drive units 21 are spaced apart in a first direction, which can lift the workpiece so that the workpiece is subjected to more uniform force and has better stability during the lifting process.

[0032] like Figure 3 , Figure 6 and Figure 10 As shown, a clamping assembly for a marine heavy-duty engine cylinder block according to an embodiment of the present invention includes a locking mechanism 3 comprising: a mounting base 31 detachably disposed on a base 12; a wedge portion 32 disposed on the mounting base 31 and arranged corresponding to a guide rod 23; the side of the wedge portion 32 near the guide rod 23 having an inclined surface that abuts against the end of the guide rod 23; a push-pull rod 33 disposed along a first direction, one end of which is connected to the wedge portion 32; and a second drive portion 34, the output end of which is connected to the end of the push-pull rod 33 away from the wedge portion 32, thereby moving the push-pull rod 33 in the first direction to change the position of the wedge portion 32 and realize the separation or engagement of the wedge portion 32 and the guide rod 23.

[0033] In some possible implementations, the bevel angle of the wedge portion 32 is preferably 8°.

[0034] In some possible implementations, the locking mechanism 3 further includes an elastic element disposed between the push-pull rod 33 and the wedge portion 32; wherein the elastic element may be a spring.

[0035] In some possible implementations, the mounting base 31 includes two sets of mounting plates arranged vertically and alternately, with at least two plates in each set. The wedge portion 32 is fixedly disposed at the intersection of the two sets of mounting plates. Connecting portions are provided at both ends of the mounting plates, allowing for detachable connection to the base 12 via bolts or other connecting components. This embodiment differs from the traditional method of first machining mounting holes and then installing the wedge structure. In this embodiment, the locking mechanism 3 can be installed as an independent unit on the base 12 or removed from the base 12. This eliminates the need for precision boring of horizontal mounting holes on the fixture body 1 to accommodate the push-pull rod 33 and the wedge portion 32, and avoids the cost of designing dedicated drilling tools. This method is convenient to operate and highly economical.

[0036] like Figure 1 , 2 and Figure 4 As shown, a clamping assembly for a marine heavy-duty engine cylinder block provided according to an embodiment of the present invention further includes a plurality of clamping mechanisms 4, which are spaced apart along a first direction on a side plate 11. Each clamping mechanism 4 includes: a third drive unit 41 disposed on a top plate 13; a pressure plate 42 hinged to the side plate 11, with one end of the pressure plate 42 connected to the output end of the third drive unit 41 and the other end of the pressure plate 42 extending out of the side plate 11 and into the clamping area for abutting against the workpiece; a first command lever 43 connected to one end of the pressure plate 42 located in the side plate 11; and a first switch 44 disposed on the side plate 11 for cooperating with the first command lever 43. During the process from the first working position to the second working position, the third drive unit 41 drives the pressure plate 42 to rotate and abut against the workpiece, and the pressure plate 42 drives the first command lever 43 to swing until the first command lever 43 triggers the first switch 44.

[0037] In some possible implementations, the third drive unit 41 is a hydraulic cylinder or a pneumatic cylinder.

[0038] like Figure 7 As shown, a jig assembly for a marine heavy-duty engine cylinder block provided according to an embodiment of the present invention further includes a conveying mechanism 5. The conveying mechanism 5 includes: a conveying roller 51, which is disposed on the side surface of the base 12 near the workpiece along a first direction, for moving the workpiece along the first direction for loading; a stop block 52, which is disposed at the end of the jig body 1 away from the loading port; and a buffer 53, which is disposed on the side of the stop block 52 near the workpiece, for buffering the workpiece during loading.

[0039] In some possible embodiments, the conveyor roller 51 further includes: a support plate 511, a roller 512, a fifth drive unit 513, a transmission unit 514, and a limiting block 515; there are two support plates 511, which are symmetrically arranged on the top surface of the base 12 and in the clamping area along the first direction; the rollers 512 are arranged between the two support plates 511 and are spaced apart along the length direction of the support plates 511; the transmission unit 514 is arranged between adjacent rollers 512, and the transmission unit 514 located at the end of the support plate 511 is connected to the fifth drive unit 513; the limiting blocks 515 are spaced apart on the side of the support plate 511 near the side plate 11, and are used to fix the position of the support plate 511 and prevent the support plate 511 from shifting.

[0040] like Figure 8 As shown, a jig assembly for a marine heavy-duty engine cylinder block provided according to an embodiment of the present invention further includes a loading mechanism 6. The loading mechanism 6 includes: a loading pallet 61, disposed on a conveyor roller conveyor 51, for carrying the workpiece; a hoisting limiting bracket 62, disposed at one end of the loading pallet 61 away from the loading direction; and a limiting pin 63, disposed on the loading pallet 61, for limiting the position of the workpiece on the loading pallet 61.

[0041] In some possible implementations, the feeding mechanism 6 further includes a support block 64, a buffer block 65, and a limiting pin 63; the support block 64 and the buffer block 65 are evenly disposed on the side surface of the feeding tray 61 near the workpiece, the support block 64 is used to support the workpiece, and the buffer block 65 is used to reduce the pressure between the workpiece and the feeding tray 61; the limiting pin 63 is disposed at the end of the feeding tray 61 near the feeding direction, and the limiting pin 63 is inserted into the bottom surface of the workpiece to limit the workpiece and prevent the workpiece from shifting position during the feeding process.

[0042] like Figure 3 As shown, a jig assembly for a marine heavy-duty engine cylinder block provided according to an embodiment of the present invention further includes: a second command lever 71, disposed on a base 12, for cooperating with a loading pallet 61; and a second switch 72, disposed on a base 12, for cooperating with the second command lever 71; wherein, during the process of the workpiece reaching the first working position, the loading pallet 61 pushes the second command lever 71, the second command lever 71 swings and triggers the second switch 72, thereby activating the lifting mechanism 2.

[0043] like Figure 9 As shown, a jig assembly for a marine heavy-duty engine cylinder block provided according to an embodiment of the present invention further includes a positioning mechanism, which includes: a positioning pin 81 disposed on the top plate 13, the end of the positioning pin 81 facing the side closer to the workpiece, for inserting and positioning the workpiece; and a positioning block 82 disposed on the side of the top plate 13 closer to the workpiece, for abutting against the workpiece.

[0044] In some possible implementations, the positioning mechanism also includes a movable pin 83, which is disposed on the top plate 13 and can extend out of the top plate 13 to engage with the workpiece, or retract into the top plate 13 for storage.

[0045] like Figure 3 and Figure 11 As shown, a jig assembly for a marine heavy-duty engine cylinder block provided according to an embodiment of the present invention further includes: a positioning navel 91, disposed on the side of the workpiece near the side plate 11; and an anti-misinstallation switch 92, disposed on the side plate 11, for cooperating with the positioning navel 91.

[0046] It should be understood that some large engine cylinder blocks have high symmetry, and manual clamping can easily result in reverse installation. Processing under reverse installation conditions will cause high-value workpieces to be scrapped. Therefore, in this embodiment, asymmetrically arranged positioning navels 91 are set on the workpiece, which can correspond to the anti-misinstallation switch 92 on the fixture body 1 to ensure the correct posture of the workpiece and effectively avoid the loss of scrap parts caused by workpiece clamping errors.

[0047] like Figure 4 As shown, in some other embodiments of the present invention, an auxiliary mechanism 10 is also included. The auxiliary mechanism 10 includes a side push-back part 101 and a side limiting plate 102. The side push-back part 101 is disposed at the bottom of the inner side of the side plate 11, and the side limiting plate 102 is disposed at the middle of the inner side of the side plate 11. It is used to abut against the workpiece. The function of the auxiliary mechanism 10 is to assist the stable execution of the actions of each fixture.

[0048] like Figure 12 As shown, in a specific embodiment of the present invention, the working process of the fixture assembly using the above-described marine heavy-duty engine cylinder block is as follows: Lifting: The loading pallet 61 is detached from the clamp body 1 and placed on the external motorized roller conveyor 54. The workpiece is lifted, and the position is checked with reference to the lifting limit bracket 62. The workpiece is then aligned with the limit pin 63 and lowered onto the support block 64.

[0049] Conveying and feeding: The external motorized roller conveyor 54 conveys the feeding pallet 61 carrying the workpiece into the clamping fixture body 1. The conveying roller conveyor 51 continues to convey the feeding pallet 61 to the buffer 53. The workpiece slows down under the action of the buffer 53 and stops moving after contacting the stop block 52. The second command lever 71 changes position as the feeding pallet 61 is in place, triggering the second switch 72 to issue a command and start the next action.

[0050] Automatic positioning and clamping: The extension rod of the first drive unit 21 rises, and under the action of the guide rod 23, it pushes the lifting plate 22 vertically upward to contact the bottom of the loading pallet 61, so that it is separated from the roller 512 and continues to lift the workpiece to insert the positioning pin 81. It continues to lift until the workpiece contacts the positioning block 82 and stops. The positioning block 82 has an air detection hole. After the air detection is qualified, the locking mechanism 3 and the clamping mechanism 4 are simultaneously sent in: The second drive unit 34 moves forward and pushes the inclined surface of the wedge part 32 to contact the inclined surface of the guide rod 23 through the push-pull rod 33 and the spring to achieve mechanical self-locking; The third drive unit 41 moves downward and pushes the pressure plate 42 to rotate to contact and clamp the workpiece. At the same time, the first command rod 43 swings along. After clamping in place, the first switch 44 is triggered to issue a command; The workpiece itself is symmetrical in height and there is only one positioning navel 91 on the outside. When the workpiece is lifted, the positioning navel 91 contacts the anti-misinstallation switch 92, triggering the switch to issue a command, confirming that the workpiece posture is correct, and starting the processing program; During the processing, the fixture body 1 can keep the workpiece positioning accurate.

[0051] Workpiece release: After the workpiece is processed, the locking mechanism 3 and the clamping mechanism 4 retract simultaneously: the second drive unit 34 moves backward, and through the push-pull rod 33, the inclined surface of the wedge part 32 disengages from the inclined surface of the guide rod 23 and continues to move away, leaving space for the guide rod 23 to descend; the third drive unit 41 moves upward, pulling the pressure plate 42 to rotate and disengage from the workpiece, while the first command rod 43 swings accordingly, and after being released into position, it triggers the first switch 44 to issue a command; the extension rod of the first drive unit 21 descends, and under the action of the guide rod 23, it pulls the lifting plate 22 vertically downward, while the feeding plate 61 descends to the roller 512, and the lifting plate 22 continues to descend and disengage from the bottom of the feeding plate 61, and the workpiece is then disengaged from the positioning block 82 and the positioning pin 81.

[0052] Conveying and unloading: Conveying roller conveyor 51 conveys the loading pallet 61 carrying the workpiece away from the stop block 52 and away from the fixture body 1 to the external motorized roller conveyor 54, where the workpiece is manually unloaded.

[0053] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clamping assembly for a marine heavy-duty engine cylinder block, characterized in that, include: The clamp body (1) has a clamping area on one side and an installation area on the other side. The lifting mechanism (2) is located in the installation area; A locking mechanism (3) is detachably disposed in the installation area, and the locking mechanism (3) is disposed corresponding to the lifting mechanism (2); In the first working position, the locking mechanism (3) is separated from the lifting mechanism (2); In the second working position, the lifting mechanism (2) lifts the workpiece, and the locking mechanism (3) cooperates with the lifting mechanism (2) to lock the lifting mechanism (2).

2. The clamping assembly for marine heavy-duty engine cylinder blocks according to claim 1, characterized in that, The clamp body (1) includes: Two side plates (11) are arranged symmetrically along a first direction; A base (12) is disposed at the bottom of the two side plates (11), and the base (12) and the side plates (11) form the clamping area; A top plate (13) is disposed on top of the side plate (11); The mounting area is formed on the side of the base (12) away from the workpiece, and the mounting area includes: A receiving cavity (121) is formed with a lifting hole (122) communicating with the clamping area. Guide holes (123) are provided on both sides of the receiving cavity (121), and the guide holes (123) are connected to the clamping area.

3. The clamping assembly for marine heavy-duty engine cylinder blocks according to claim 2, characterized in that, The lifting mechanism (2) includes: A first drive unit (21) is disposed in the receiving cavity (121). The first drive unit (21) has an extension rod that is movably inserted into the lifting hole (122). A lifting plate (22) is disposed in the clamping area, and the lifting plate (22) is connected to the end of the extension rod away from the first drive part (21); The guide rod (23) is movably inserted into the guide hole (123), and one end of the guide rod (23) is connected to the lifting plate (22), while the other end of the guide rod (23) forms an inclined surface.

4. The clamping assembly for marine heavy-duty engine cylinder blocks according to claim 3, characterized in that, The locking mechanism (3) includes: Mounting base (31) is detachably mounted on the base (12); A wedge portion (32) is provided on the mounting base (31) and is arranged corresponding to the guide rod (23); the wedge portion (32) has an inclined surface on the side near the guide rod (23) that abuts against the end of the guide rod (23); A push-pull rod (33) is provided along the first direction, and one end of the push-pull rod (33) is connected to the wedge part (32); The second drive unit (34) has its output end connected to the end of the push-pull rod (33) away from the wedge part (32), so that the push-pull rod (33) moves in the first direction to change the position of the wedge part (32) and realize the separation or engagement of the wedge part (32) and the guide rod (23).

5. The clamping assembly for marine heavy-duty engine cylinder blocks according to claim 2, characterized in that, It also includes a plurality of clamping mechanisms (4), which are spaced apart along the first direction on the side plate (11). The clamping mechanisms (4) include: The third drive unit (41) is disposed on the top plate (13). A pressure plate (42) is hinged to the side plate (11), and one end of the pressure plate (42) is connected to the output end of the third drive unit (41), and the other end of the pressure plate (42) extends out of the side plate (11) and into the clamping area; The first command lever (43) is connected to one end of the pressure plate (42) located inside the side plate (11); The first switch (44) is disposed on the side plate (11). During the process from the first working position to the second working position, the third driving unit (41) drives the pressure plate (42) to rotate and press against the workpiece. The pressure plate (42) drives the first command lever (43) to swing until the first command lever (43) triggers the first switch (44).

6. The clamping assembly for marine heavy-duty engine cylinder blocks according to claim 2, characterized in that, It also includes a conveying mechanism (5), which comprises: A conveyor roller (51) is disposed along the first direction on the side surface of the base (12) near the workpiece; A stop block (52) is provided at one end of the clamp body (1) away from the feed port; A buffer (53) is disposed on the side of the stop (52) near the workpiece.

7. The clamping assembly for marine heavy-duty engine cylinder blocks according to claim 6, characterized in that, It also includes a feeding mechanism (6), which includes: A feeding tray (61) is provided on the conveyor roller conveyor (51). A hoisting limit bracket (62) is provided at one end of the feeding tray (61) away from the feeding direction; A limit pin (63) is provided on the feeding tray (61).

8. The clamping assembly for marine heavy-duty engine cylinder blocks according to claim 7, characterized in that, Also includes: The second starting lever (71) is disposed on the base (12); The second switch (72) is disposed on the base (12); During the process of the workpiece reaching the first working position, the loading pallet (61) pushes the second command lever (71), the second command lever (71) swings and triggers the second switch (72) to start the lifting mechanism (2).

9. The clamping assembly for marine heavy-duty engine cylinder blocks according to claim 2, characterized in that, It also includes a positioning mechanism, which comprises: A positioning pin (81) is provided on the top plate (13), and the end of the positioning pin extends toward the side close to the workpiece. A positioning block (82) is disposed on the side of the top plate (13) near the workpiece.

10. The clamping assembly for marine heavy-duty engine cylinder blocks according to any one of claims 2 to 9, characterized in that, Also includes: A positioning umbilicus (91) is provided on the side of the workpiece near the side plate (11); An anti-misinstallation switch (92) is provided on the side plate (11), and the anti-misinstallation switch cooperates with the positioning umbilicus (91).

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