Automobile engine cylinder body machining clamp

Abstract

The utility model relates to the technical field of engine cylinder processing, specifically to a kind of automobile engine cylinder processing fixture, including support base, two mounting racks are symmetrically set in the both ends of support base, two mounting racks shape symmetry is same, and the top of the middle part of support base is provided with support platform.The utility model is contacted with engine cylinder by the one end of movable column in fixed cylinder, and the movable column is extruded in the inside of movable slot in the side of generator, and the movable column is moved to compress limit spring while driving the connecting rod of two sides movable connection to move to one end, and the one end of connecting rod promotes movable bracket to move by the guiding of the second sliding block and second sliding slot in bottom, and the movable bracket is rotated by the movable connection of the middle part of two sides of movable bracket and fixed block, and the arc-shaped clamping plate of one end inside is contacted with engine cylinder by second rubber pad to clamp the bottom four corners of engine cylinder, improve the clamping stability of generator.

Description

Technical Field

[0001] This utility model relates to the field of engine cylinder block machining technology, specifically a machining fixture for automotive engine cylinder blocks. Background Technology

[0002] The car engine, the heart of a vehicle, provides power and determines its performance, fuel economy, stability, and environmental friendliness. During the manufacturing and processing of modern car engines, the cylinder block needs to be clamped and fixed before installation and machining. A car engine cylinder block machining fixture is a specialized device used to fix and position the cylinder block, ensuring its precise position and stability during processing. Through proper design and manufacturing, this specialized fixture can effectively improve the machining accuracy and production efficiency of engine cylinder blocks.

[0003] Before processing the main body of the engine cylinder block, a machining fixture for an automotive engine cylinder block, with announcement number CN222626959U, can be used. This fixture relates to the field of automotive engines. It uses an integrated control structure with a fixed base plate to make clamping and fixing more stable. It also incorporates a multi-angle adjustment structure to meet processing requirements. However, this device can only clamp and fix the bottom two sides of the engine cylinder block, which is relatively weak, and it can only clamp and fix engine cylinder blocks of fixed size.

[0004] In summary, we provide a machining fixture for automotive engine cylinder blocks. Utility Model Content

[0005] The purpose of this utility model is to provide a machining fixture for automobile engine cylinder blocks to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A machining fixture for an automotive engine cylinder block includes a support base, two mounting brackets symmetrically arranged at both ends of the support base, the two mounting brackets being symmetrical and identical in shape, a support platform provided at the top of the middle part of the support base, and a placement pad provided at the top of the middle part of the support platform.

[0008] Preferably, a first sliding groove is provided in the middle of the support platform, and a bidirectional lead screw is provided inside the first sliding groove. Both ends of the bidirectional lead screw are movably connected to the support platform. One end of the bidirectional lead screw passes through the support platform and is fixedly connected to a drive motor. The drive motor is fixed to the outside of the mounting bracket at one end of the support base by bolts.

[0009] Preferably, two first sliders are symmetrically sleeved on the outer sides of both ends of the bidirectional lead screw, and both first sliders are slidably connected to the first slide groove. A mounting plate is provided on the top of each of the two first sliders.

[0010] Preferably, clamping blocks are provided at the two symmetrical corners of one side of the top of the mounting plate, and a rubber protrusion is fixed on one side of each clamping block.

[0011] Preferably, a fixing cylinder is provided in the middle of the bottom end of one side of the mounting plate, a movable column is provided inside the fixing cylinder, one end of the movable column passes through the fixing cylinder and is bonded with a first rubber pad, and two through grooves are symmetrically opened on both sides of the fixing cylinder.

[0012] Preferably, two third sliding grooves are symmetrically opened on one side of the mounting plate corresponding to the two sides of the fixed cylinder. The two third sliding grooves are provided with movable grooves at the ends of the two grooves near the fixed cylinder, corresponding to the through grooves. Limiting springs are provided inside the movable grooves, and the two ends of the limiting springs are fixedly connected to the movable column and the mounting plate, respectively.

[0013] Preferably, connecting rods are movably connected to both sides of the movable column at positions corresponding to the through slots, and a fixed rod is provided at the end of the connecting rod away from the movable column, with both ends of the fixed rod being fixedly connected to the movable frame.

[0014] Preferably, an arc-shaped clamping plate is movably connected to one side of the movable frame away from the fixed rod, and a second rubber pad is adhered to one side of the arc-shaped clamping plate. Fixed blocks are movably connected to the middle of both sides of the movable frame, and one side of the fixed block is fixedly connected to the mounting plate.

[0015] Preferably, a second slide groove is provided at the bottom of the third slide groove, and a second slider is movably connected to one end of the movable frame at the position corresponding to the second slide groove, and the second slider is slidably connected to the second slide groove.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] This utility model uses a drive motor to rotate, which causes the first sliders at both ends to move inward through the first slide groove. The movement of the first sliders causes the mounting plate to move inward. The spacing of the mounting plate can be adjusted according to the size of the engine cylinder. The mounting plate causes the clamping block to contact the two sides of the engine cylinder to clamp and fix the engine cylinder.

[0018] This invention involves one end of a movable column inside a fixed cylinder contacting the engine cylinder. One side of the generator presses the movable column into the movable groove. As the movable column moves into the movable groove, it compresses the limiting spring and simultaneously moves the connecting rods on both sides to one end. One end of the connecting rod pushes the movable frame to one side, guiding its movement through the second slider and the second slide groove at the bottom. The movable frame rotates because it is movably connected to the fixed block at the middle of both sides. The rotation of the movable frame causes the arc-shaped clamping plate on one inner side to contact the engine cylinder through the second rubber pad, clamping the four bottom corners of the engine cylinder and improving the clamping stability of the generator. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the support base structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the movable frame of this utility model;

[0022] Figure 4 This utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0023] In the diagram: 1. Support base; 2. Mounting frame; 3. Support platform; 4. Placement pad; 5. First slide groove; 6. Two-way lead screw; 7. Drive motor; 8. Mounting plate; 9. First slider; 10. Clamping block; 11. Rubber protrusion; 12. Fixed cylinder; 13. Movable column; 14. First rubber pad; 15. Through groove; 16. Limiting spring; 17. Third slide groove; 18. Second slide groove; 19. Fixed block; 20. Connecting rod; 21. Movable frame; 22. Fixed rod; 23. Second slider; 24. Arc-shaped clamping plate; 25. Second rubber pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-4 As shown, a machining fixture for an automobile engine cylinder block includes a support base 1. Two mounting brackets 2 are symmetrically arranged at both ends of the support base 1. The two mounting brackets 2 are symmetrical and identical in shape. A support platform 3 is provided at the top of the middle part of the support base 1. A placement pad 4 is provided at the top of the middle part of the support platform 3.

[0026] like Figure 1 and Figure 2 As shown, a first sliding groove 5 is provided in the middle of the support platform 3. A bidirectional screw rod 6 is provided inside the first sliding groove 5. Both ends of the bidirectional screw rod 6 are movably connected to the support platform 3. One end of the bidirectional screw rod 6 passes through the support platform 3 and is fixedly connected to the mounting bracket 2. The drive motor 7 is fixed to the outside of the mounting bracket 2 at one end of the support base 1 by bolts.

[0027] Two first sliders 9 are symmetrically sleeved on the outer sides of both ends of the bidirectional lead screw 6. Both first sliders 9 are slidably connected to the first slide groove 5. Both first sliders 9 are provided with mounting plates 8 on their tops.

[0028] Clamping blocks 10 are provided at the two symmetrical corners of one side of the top of the mounting plate 8, and rubber protrusions 11 are fixed on one side of the clamping blocks 10.

[0029] In this embodiment, the support base 1 is moved to a suitable position, and the engine block to be processed is placed on the support platform 3 set on the top of the support base 1. The placement pad 4 contacts the bottom of the engine block to avoid direct contact between the bottom of the engine block and the support platform 3, which would cause wear. The drive motor 7 is turned on, and the drive motor 7 drives the bidirectional lead screw 6 to rotate. The rotation of the bidirectional lead screw 6 drives the first sliders 9 at both ends to move inward through the first slide groove 5. The movement of the first sliders 9 drives the mounting plate 8 to move inward. The spacing of the mounting plate 8 is adjusted according to the size of the engine block. The mounting plate 8 drives the clamping block 10 to contact the two sides of the engine block to clamp and fix the engine block. The rubber protrusion 11 set at one end of the clamping block 10 avoids direct contact between the clamping block 10 and the engine block, which would cause clamping marks and wear.

[0030] like Figure 3 and Figure 4 As shown, a fixed cylinder 12 is provided in the middle of the bottom end of one side of the mounting plate 8. A movable column 13 is provided inside the fixed cylinder 12. One end of the movable column 13 passes through the fixed cylinder 12 and is bonded with a first rubber pad 14. Two through slots 15 are symmetrically opened on both sides of the fixed cylinder 12.

[0031] Two third slide grooves 17 are symmetrically opened on one side of the mounting plate 8, corresponding to the two sides of the fixed cylinder 12. The two third slide grooves 17 are provided with movable grooves at the end of the fixed cylinder 12, corresponding to the through groove 15. Limiting springs 16 are provided inside the movable grooves. The two ends of the limiting springs 16 are fixedly connected to the movable column 13 and the mounting plate 8 respectively.

[0032] Connecting rods 20 are movably connected to both sides of the movable column 13 at the positions corresponding to the through slots 15. A fixed rod 22 is passed through the end of the connecting rod 20 away from the movable column 13. Both ends of the fixed rod 22 are fixedly connected to the movable frame 21.

[0033] An arc-shaped clamping plate 24 is movably connected to one side of the movable frame 21 away from the fixed rod 22. A second rubber pad 25 is glued to one side of the arc-shaped clamping plate 24. Fixed blocks 19 are movably connected to the middle of both sides of the movable frame 21. One side of the fixed block 19 is fixedly connected to the mounting plate 8.

[0034] The bottom of the third slide groove 17 is provided with a second slide groove 18. One end of the movable frame 21 is movably connected to a second slider 23 corresponding to the position of the second slide groove 18. The second slider 23 is slidably connected to the second slide groove 18.

[0035] In this embodiment, as the mounting plates 8 at both ends of the support base 1 move, the fixed cylinder 12 on one side of the top moves toward the engine cylinder. One end of the movable column 13 inside the fixed cylinder 12 contacts the engine cylinder and is in contact with the engine cylinder through the first rubber pad 14. One side of the generator presses the movable column 13 toward the interior of the movable groove. As the movable column 13 moves toward the interior of the movable groove and compresses the limiting spring 16, it drives the connecting rod 20 connected to both sides to move to one end. One end of the connecting rod 20 pushes the movable frame 21 to one side and guides it through the second slider 23 and the second slide groove 18 at the bottom. The movable frame 21 is movably connected to the fixed block 19 on both sides, causing the movable frame 21 to rotate. The rotation of the movable frame 21 drives the arc-shaped clamping plate 24 on one inner side to contact the engine cylinder through the second rubber pad 25 and clamp the four corners of the engine cylinder, thereby improving the clamping stability of the generator.

[0036] In summary, the working principle is as follows:

[0037] First, an automotive engine cylinder block machining fixture with announcement number CN222626959U is used. Through a fixed base plate and an integrated control structure, the clamping and fixing are more stable. Simultaneously, a multi-angle adjustment structure is incorporated to meet machining requirements. However, this device can only clamp and fix the bottom two sides of the engine cylinder block, resulting in weak stability, and it can only clamp and fix engine cylinder blocks of a fixed size. Therefore, the support base 1 is moved to a suitable position, and the engine cylinder block to be processed is placed on the support platform 3 on top of the support base 1. The placement pad 4 contacts the bottom of the engine cylinder block, avoiding direct contact between the bottom of the engine cylinder block and the support platform 3, which could cause wear. The drive motor 7 is turned on, driving the bidirectional lead screw 6 to rotate. The rotation of the bidirectional lead screw 6 drives the first sliders 9 at both ends to move inward through the first slide groove 5. The movement of the first sliders 9 drives the mounting plate 8 to move inward. The spacing of the mounting plate 8 is adjusted according to the size of the engine cylinder block, and the mounting plate 8 drives the clamping block 10. The clamping block 10 contacts both sides of the engine cylinder block to clamp and fix the engine cylinder block. The rubber protrusion 11 at one end of the clamping block 10 prevents the clamping block 10 from directly contacting the engine cylinder block and causing clamping marks and wear. As the mounting plates 8 at both ends of the support base 1 move, the fixed cylinder 12 on the top side moves towards the engine cylinder block. One end of the movable column 13 inside the fixed cylinder 12 contacts the engine cylinder block and contacts the engine cylinder block through the first rubber pad 14. One side of the generator presses the movable column 13 into the movable groove. The movable column 13 moves into the movable groove and compresses the limit spring 16, while driving the connecting rod 20 connected to both sides to move to one end. One end of the connecting rod 20 pushes the movable frame 21 to one side and guides it through the second slider 23 and the second slide groove 18 at the bottom. The movable frame 21 is movably connected to the fixed block 19 on both sides, causing the movable frame 21 to rotate. The rotation of the movable frame 21 drives the arc-shaped clamping plate 24 on one end to contact the engine cylinder block through the second rubber pad 25 and clamp the four corners of the engine cylinder block, improving the clamping stability of the generator.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machining fixture for automobile engine cylinder blocks, comprising a support base (1), characterized in that: The support base (1) has two mounting brackets (2) symmetrically arranged at both ends. The two mounting brackets (2) are symmetrical and identical in shape. The support base (1) has a support platform (3) at the top of the middle part, and a placement pad (4) is provided at the top of the middle part of the support platform (3).

2. The automotive engine cylinder block machining fixture according to claim 1, characterized in that: The support platform (3) has a first sliding groove (5) in the middle. A bidirectional lead screw (6) is provided inside the first sliding groove (5). Both ends of the bidirectional lead screw (6) are movably connected to the support platform (3). One end of the bidirectional lead screw (6) passes through the support platform (3) and the mounting bracket (2) and is fixedly connected to a drive motor (7). The drive motor (7) is fixed to the outside of the mounting bracket (2) at one end of the support base (1) by bolts.

3. The automotive engine cylinder block machining fixture according to claim 2, characterized in that: Two first sliders (9) are symmetrically sleeved on the outer sides of both ends of the bidirectional lead screw (6). Both first sliders (9) are slidably connected to the first slide groove (5). The top of both first sliders (9) is provided with mounting plates (8).

4. The automotive engine cylinder block machining fixture according to claim 3, characterized in that: Clamping blocks (10) are provided at the two symmetrical corners of one side of the mounting plate (8), and a rubber protrusion (11) is fixed on one side of the clamping block (10).

5. A machining fixture for an automobile engine cylinder block according to claim 3, characterized in that: A fixing cylinder (12) is provided in the middle of the bottom end of one side of the mounting plate (8). A movable column (13) is provided inside the fixing cylinder (12). One end of the movable column (13) passes through the fixing cylinder (12) and is bonded with a first rubber pad (14). Two through slots (15) are symmetrically opened on both sides of the fixing cylinder (12).

6. A machining fixture for an automobile engine cylinder block according to claim 5, characterized in that: Two third slide grooves (17) are symmetrically opened on one side of the mounting plate (8) corresponding to the two sides of the fixed cylinder (12). The two third slide grooves (17) are provided with movable grooves at the end of the fixed cylinder (12) corresponding to the through groove (15). The movable grooves are provided with limit springs (16). The two ends of the limit springs (16) are fixedly connected to the movable column (13) and the mounting plate (8) respectively.

7. A machining fixture for an automobile engine cylinder block according to claim 6, characterized in that: Connecting rods (20) are movably connected to both sides of the movable column (13) at the positions corresponding to the through slots (15). A fixed rod (22) is provided at the end of the connecting rod (20) away from the movable column (13). Both ends of the fixed rod (22) are fixedly connected to the movable frame (21).

8. A machining fixture for an automobile engine cylinder block according to claim 7, characterized in that: An arc-shaped clamping plate (24) is movably connected to one side of the movable frame (21) away from the fixed rod (22). A second rubber pad (25) is glued to one side of the arc-shaped clamping plate (24). Fixed blocks (19) are movably connected to the middle of both sides of the movable frame (21). One side of the fixed block (19) is fixedly connected to the mounting plate (8).

9. A machining fixture for an automobile engine cylinder block according to claim 8, characterized in that: The bottom of the third slide groove (17) is provided with a second slide groove (18). A second slider (23) is movably connected to one end of the movable frame (21) at the position corresponding to the second slide groove (18). The second slider (23) is slidably connected to the second slide groove (18).

Images