Magnesium alloy engine cylinder block clamping device

Abstract

The utility model discloses a magnesium alloy engine cylinder block clamping device which comprises a bottom plate, four dismounting blocks are fixedly arranged on one side of the bottom plate, four supporting columns are fixedly arranged on the other side of the bottom plate, two sliding grooves are symmetrically formed in the bottom plate, I-shaped sliding blocks are arranged in the two sliding grooves in a sliding and clamping mode, and the two I-shaped sliding blocks are arranged on the bottom plate in a sliding and clamping mode. Two I-shaped sliding blocks are arranged on the bottom plate, an adjusting mechanism capable of adjusting the distance between the two I-shaped sliding blocks is arranged on the bottom plate, and clamping mechanisms capable of clamping the engine cylinder block are arranged on the I-shaped sliding blocks. And then the engine cylinder block is clamped through the clamping mechanism on the convex column, so that the engine cylinder block clamping device can be suitable for clamping various engine cylinder blocks with different sizes and models and is very convenient to adjust, the working efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamping device for a magnesium alloy engine cylinder. Background Art

[0002] As a lightweight and high-strength material, magnesium alloy is widely used in automobile manufacturing, aerospace and other fields. In the automotive industry, magnesium alloy is used to manufacture engine cylinder blocks to improve the fuel economy of the vehicle and reduce the weight of the vehicle body. However, the engine cylinder block needs to be clamped and fixed during the production and processing process.

[0003] In the prior art, an automatic clamping device for cylinder parts with the announcement number "CN206839854U" includes a base, a support, a support block and a clamping mechanism, wherein the upper end face of the base is provided with two opposite supports, and the bottom plate is also provided with three support blocks capable of supporting the workpiece. The upper end face of each of the above supports is provided with a clamping mechanism capable of clamping the workpiece, which has the advantages of accurate positioning and clamping, and a high degree of automation.

[0004] However, the above device still has major shortcomings, such as:

[0005] During use of the above-mentioned device, since the distance between the two supports is fixed, the distance between the two clamping mechanisms provided thereon is also fixed. Such a clamping device can only clamp magnesium alloy engine cylinders of one size and model, and cannot clamp engine cylinders of different sizes and models. Even if the device can adjust the distance between the two supports by means of bolts and nuts, it cannot guarantee that the adjusted distance is just right, and the adjustment is very cumbersome, thereby reducing work efficiency and increasing production costs. Utility Model Content

[0006] The purpose of the present utility model is to provide a magnesium alloy engine cylinder clamping device to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A magnesium alloy engine cylinder block clamping device comprises a base plate, four disassembly blocks are fixedly provided on one side of the base plate, four support columns are fixedly provided on the other side of the base plate, two sliding grooves are symmetrically provided on the base plate, and an I-shaped slider is slidably clamped in each of the two sliding grooves;

[0009] The bottom plate is provided with an adjustment mechanism capable of adjusting the distance between the two I-shaped sliders;

[0010] The I-shaped sliding block is provided with a clamping mechanism capable of clamping the engine cylinder body.

[0011] Preferably, the adjustment mechanism includes a motor fixedly mounted on the base plate, the motor fixedly mounted between two sliding slots, a gear fixedly mounted on the motor, the gear meshing with two racks, one end of the rack fixed on one of the I-shaped sliders, and the other end sliding through the other I-shaped slider.

[0012] Preferably, the clamping mechanism includes a boss fixedly provided on an I-shaped slider, a piston cavity and a movable cavity interconnected with each other are provided inside the boss, four slider grooves connected with the movable cavity are provided in the boss, a piston is movably provided inside the piston cavity, the piston is fixedly connected to a movable rod, two bosses are fixedly provided on the movable rod in the movable cavity, a pin is fixedly provided on the side of the piston away from the movable rod, the end of the pin away from the piston slides through the boss and the I-shaped slider in turn and fits with the rack, the four slider grooves are all slidably provided with tree-shaped sliders, and the four tree-shaped sliders are sleeved with two elastic rings.

[0013] Preferably, the boss is provided with oil passages at the top and bottom ends of the piston cavity. The end of the oil passage away from the piston cavity passes through the boss and the I-shaped slider in sequence and is connected to the hydraulic pump. The hydraulic pump is fixedly arranged on the I-shaped slider.

[0014] Preferably, four protrusions are fixedly provided on the I-shaped sliding block, and the protrusions and the support columns are in the same plane.

[0015] Preferably, the support column and the top of the bump are both made of rubber.

[0016] Preferably, the elastic ring is a circular spring or a rubber ring.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This device can adjust the distance between the two bosses extending into the engine cylinder through the adjustment mechanism, and then clamp the engine cylinder through the clamping mechanism on the bosses, so it can be used to clamp engine cylinders of various sizes and models. The adjustment is very convenient, thereby improving work efficiency and reducing production costs.

[0019] 2. After the device aligns the two bosses with the inside of the engine cylinder through the adjustment mechanism, hydraulic oil is injected into the piston cavity through the hydraulic pump, causing the piston to move downward, thereby driving the movable rod to move downward, and then causing the tree-shaped slider to slide outward, thereby pressing against the inner wall of the engine cylinder and clamping the engine cylinder. When the piston moves downward, it drives the pin to move downward and insert into the gap of the rack, further fixing the distance between the two bosses so that the two bosses will not move, further improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a side view structural diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0024] Figure 5 This is a schematic cross-sectional view of the clamping mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the internal structure of the convex column of the present utility model.

[0026] In the figure: 1. Base plate; 2. Disassembly block; 3. Support column; 4. Sliding groove; 5. I-shaped slider; 6. Motor; 7. Gear; 8. Rack; 9. Boss; 10. Piston chamber; 11. Movable chamber; 12. Slider groove; 13. Piston; 14. Movable rod; 15. Boss; 16. Latch; 17. Tree-shaped slider; 18. Elastic ring; 19. Oil channel; 20. Hydraulic pump; 21. Bump. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1-6 , the utility model provides a technical solution:

[0029] Example 1:

[0030] A magnesium alloy engine cylinder clamping device includes a base plate 1, four disassembly blocks 2 are fixedly provided on one side of the base plate 1, and a mechanical arm is fixed to the four disassembly blocks 2 by bolts for easy disassembly. Four support columns 3 are fixedly provided on the other side of the base plate 1. When the magnesium alloy engine cylinder is placed on the clamping device, the engine cylinder can be supported by the support columns 3 to prevent the engine cylinder from tilting. The base plate 1 is symmetrically provided with two sliding grooves 4, and an I-shaped slider 5 is provided in each of the two sliding grooves 4. The I-shaped slider 5 is clamped in the sliding groove 4 and can slide in the sliding groove 4. Four The protrusions 21 are in the same plane as the support column 3. The four protrusions 21 around the protrusion 9 are pressed against the four sides of the engine cylinder, and can also support the engine cylinder to prevent the engine cylinder from tilting. The materials of the support column 3 and the top of the protrusion 21 are both made of rubber, which can provide buffering when the engine cylinder is placed and prevent the engine cylinder from being bumped. An adjustment mechanism that can adjust the distance between the two I-shaped sliders 5 is provided on the base plate 1. The adjustment mechanism can drive the two protrusions 9 to move together and adjust the distance between the two protrusions 9, so that it is suitable for engine cylinders of different sizes and models.

[0031] The adjustment mechanism includes a motor 6 fixedly set on the base plate 1, and the motor 6 is fixedly set between the two sliding grooves 4. A gear 7 is fixedly set on the motor 6, and the gear 7 is engaged with two racks 8. One end of the rack 8 is fixed on one of the I-shaped sliders 5, and the other end slides through the other I-shaped slider 5. One end of the rack 8 is fixed on the I-shaped slider 5, and the other end passes through the other I-shaped slider 5 so that it will not deviate, thereby ensuring that the rack 8 is always engaged with the gear 7. When the motor 6 is started, it drives the gear 7 to rotate, and the gear 7 drives the two racks 8 to move relative to each other, thereby driving the two I-shaped sliders 5 to move closer to or away from each other.

[0032] Example 2:

[0033] The I-shaped slider 5 is provided with a clamping mechanism capable of clamping the engine cylinder block. The clamping mechanism includes a boss 9 fixedly provided on the I-shaped slider 5. The boss 9 can extend into the cylinder of the magnesium alloy engine cylinder block. A piston chamber 10 and an active chamber 11 that are interconnected are provided inside the boss 9. The boss 9 is provided with four slider grooves 12 that are connected to the active chamber 11. The piston chamber 10 provides a moving space for the piston 13. The active chamber 11 provides a moving space for the active rod 14. The slider groove 12 provides a moving space for the tree-shaped slider 17. A piston 13 is movably provided inside the piston chamber 10. The piston 13 is fixedly connected to the active rod 14. The active rod 14 is fixedly provided with two bosses 15 in the active chamber 11. The inclined surfaces of the two bosses 15 fit with the inclined surfaces of the tree-shaped slider 17. When the boss 15 moves downward following the active rod 14, it squeezes the tree-shaped slider 17. The tree-shaped slider 17 slides outward in the slider groove 12, thereby increasing the diameter of the boss 9. The tree-shaped slider 17 will then press against the cylinder wall of the engine cylinder block, thereby clamping the engine cylinder block. A latch 16 is fixedly provided on the side of the piston 13 away from the movable rod 14. The end of the latch 16 away from the piston 13 slides through the boss 9 and the I-shaped slider 5 in turn and fits with the rack 8. When the latch 16 moves with the piston 13, it will be inserted into or pulled out of the tooth gap of the rack 8, thereby locking the rack 8. The four slider grooves 12 are all slidably provided with tree-shaped sliders 17. Two elastic rings 18 are provided on the four tree sliders 17. The elastic ring 18 is a circular spring or rubber ring. When the movable rod 14 moves upward, the four tree-shaped sliders 17 will not be squeezed by the boss 15, and the four tree-shaped sliders 17 will be reset by the two elastic rings 18.

[0034] The boss 9 is provided with oil passages 19 at the top and bottom ends of the piston cavity 10. The end of the oil passage 19 away from the piston cavity 10 passes through the boss 9 and the I-shaped slider 5 in sequence and is connected to the hydraulic pump 20. The hydraulic pump 20 is fixedly arranged on the I-shaped slider 5. The hydraulic pump 20 injects hydraulic oil into the piston cavity 10 through the oil passage 19 opened at the upper end of the boss 9, which will cause the piston 13 to move downward. The hydraulic pump 20 injects hydraulic oil into the piston cavity 10 through the oil passage 19 opened at the lower end of the boss 9, which will cause the piston 13 to move upward.

[0035] Working principle: First, start the motor 6, and the rotation of the gear 7 drives the two racks 8 to move, and then drives the two I-shaped sliders 5 to move, and adjust the distance between the two I-shaped sliders 5. When the two bosses 9 are aligned with the two cylinders of the magnesium alloy engine block, stop the motor 6, and then put the two bosses 9 into the two cylinders of the magnesium alloy engine block, and then start the hydraulic pump 20 to press the hydraulic oil into the upper part of the piston cavity 10, so that the piston 13 moves downward, and the piston 13 drives the movable rod 14 and the boss 15 to move downward together. When the boss 15 moves downward, it squeezes the four tree-shaped sliders 17 to expand outward until the tree-shaped sliders 17 touch the inner wall of the cylinder, and then stops the hydraulic pump 20, thereby clamping the magnesium alloy engine block. When the piston 13 moves downward, it also drives the pin 16 to move downward, and the pin 16 will be inserted into the teeth gap of the rack 8, thereby preventing the two I-shaped sliders 5 from displacement;

[0036] When the magnesium alloy engine block needs to be removed, another hydraulic pump 20 is started to inject hydraulic oil into the lower part of the piston chamber 10, so that the piston 13 moves upward, and the movable rod 14 and the boss 15 also move upward. Then, the four tree-shaped sliders 17 are elastically contracted by the elastic ring 18 and closed inward, and the magnesium alloy engine block can be removed. At the same time, the piston 13 drives the pin 16 to move upward and pull it out from the teeth gap of the rack 8, thereby releasing the restriction of the rack 8. Subsequently, the distance between the two bosses 9 can be adjusted.

[0037] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnesium alloy engine cylinder block clamping device, comprising a base plate (1), four disassembly blocks (2) fixedly provided on one side of the base plate (1), and four support columns (3) fixedly provided on the other side of the base plate (1), characterized in that: The bottom plate (1) is symmetrically provided with two sliding grooves (4), and an I-shaped slider (5) is slidably provided in each of the two sliding grooves (4); The bottom plate (1) is provided with an adjustment mechanism capable of adjusting the distance between the two I-shaped sliders (5); The I-shaped sliding block (5) is provided with a clamping mechanism capable of clamping the engine cylinder body.

2. The magnesium alloy engine cylinder block clamping device according to claim 1, characterized in that: The adjustment mechanism comprises a motor (6) fixedly arranged on a base plate (1), the motor (6) fixedly arranged between two sliding grooves (4), a gear (7) fixedly arranged on the motor (6), the gear (7) meshing with two racks (8), one end of the rack (8) fixed to one of the I-shaped sliders (5), and the other end slidingly passing through the other I-shaped slider (5).

3. The magnesium alloy engine cylinder block clamping device according to claim 1, characterized in that: The clamping mechanism comprises a boss (9) fixedly arranged on an I-shaped slider (5), wherein a piston cavity (10) and an active cavity (11) which are communicated with each other are provided inside the boss (9), and four slider grooves (12) which are communicated with the active cavity (11) are provided inside the boss (9), a piston (13) is movably provided inside the piston cavity (10), and the piston (13) is fixedly connected to an active rod (14), and two bosses (15) are fixedly provided on the active rod (14) in the active cavity (11), and a latch (16) is fixedly provided on the side of the piston (13) away from the active rod (14), and the end of the latch (16) away from the piston (13) slides through the boss (9) and the I-shaped slider (5) in sequence and then fits with the rack (8), and the four slider grooves (12) are all slidably provided with tree-shaped sliders (17), and the four tree-shaped sliders (17) are sleeved with two elastic rings (18).

4. The magnesium alloy engine cylinder block clamping device according to claim 3, characterized in that: The boss (9) is provided with oil passages (19) at both the top and bottom ends of the piston chamber (10). The end of the oil passage (19) away from the piston chamber (10) passes through the boss (9) and the I-shaped slider (5) in sequence and is then communicated with a hydraulic pump (20). The hydraulic pump (20) is fixedly arranged on the I-shaped slider (5).

5. The magnesium alloy engine cylinder block clamping device according to claim 1, characterized in that: Four protrusions (21) are fixedly provided on the I-shaped slider (5), and the protrusions (21) and the support columns (3) are in the same plane.

6. The magnesium alloy engine cylinder block clamping device according to claim 5, characterized in that: The support column (3) and the top of the bump (21) are both made of rubber.

7. The magnesium alloy engine cylinder block clamping device according to claim 3, characterized in that: The elastic ring (18) is a circular spring or a rubber ring.

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