Multi-angle hole milling hydraulic clamp for engine cylinder block

Abstract

The utility model relates to the technical field of engine cylinder body detection, in particular to an engine cylinder body multi-angle hole milling hydraulic clamp which comprises a bottom plate and an operation table board installed on the bottom plate in a sliding mode. The clamping assembly is arranged on the top surface of the operation table top, and the clamping assembly is used for clamping the engine cylinder block; and the driving assembly is arranged on one side of the bottom plate, the driving assembly is used for driving the clamping assembly to move, the driving assembly comprises two hydraulic rods fixedly installed on one side of the bottom plate, and the telescopic ends of the hydraulic rods are fixedly connected with one side of the operation table top. Compared with the prior art, the driving assembly is arranged to be matched with the clamping assembly, so that the accuracy of the clamping process is enhanced, the dependence on manual operation is reduced, and the safety and reliability of operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine cylinder detection, in particular to a hydraulic clamp for multi-angle milling of engine cylinders. Background Art

[0002] The engine block is an important component of the engine. During and after the processing, multiple key dimensions of the engine block need to be tested to ensure that the engine block meets production standards. Among them, the roundness and cylindricity of the cylinder bore and crankshaft hole of the engine block are key measurement dimensions.

[0003] In the prior art, the Chinese patent document engine cylinder clamp with publication number CN217046117U proposes to fix the engine cylinder in the installation space by combining a flat plate and a positioning pin, so that the operator can measure the relevant dimensions of the engine cylinder. The measurement is convenient and quick, which improves the measurement efficiency. However, consistent with the traditional method, when it is necessary to clamp a workpiece with a complex shape, traditional clamping tools are usually difficult to directly adapt to its different angle requirements, resulting in poor clamping effect, or the need to use multiple clamps for clamping at different angles, which not only reduces work efficiency but also increases the complexity of operation. In addition, the fixing method of traditional clamping tools is often relatively simple, mainly relying on a single clamping method, such as mechanical clamping or simple spring clamping. This fixing method may not be suitable for workpieces of various sizes and shapes, especially for workpieces with irregular shapes or that require precise positioning. Utility Model Content

[0004] In view of this, the purpose of the present invention is to propose a hydraulic clamp for multi-angle milling of engine cylinder blocks to solve the problems that the clamping tool cannot be adjusted at multiple angles and the fixing method is too simple.

[0005] Based on the above purpose, the utility model provides a hydraulic fixture for multi-angle milling of an engine cylinder block, comprising: a base plate and an operating table slidably mounted on the base plate;

[0006] A clamping assembly, wherein the clamping assembly is arranged on the top surface of the operating table, and the clamping assembly is used to clamp the engine cylinder block. The clamping assembly includes a shell slidably mounted on both sides of the operating table, and the two shells are arranged opposite to each other. A mounting hole is provided on the side of the shell away from the center of the operating table and fixedly sleeved with the sliding column. A contact block is slidably mounted on the middle part of the shell, and a contact roller is rotatably mounted on one end of the contact block. A second return spring is fixedly mounted on the inner bottom end of the shell, and the other end of the second return spring is fixedly connected to the other end of the contact block. Clamping claws are rotatably mounted on both sides of the shell;

[0007] A drive assembly is arranged on one side of the base plate, and is used to drive the clamping assembly to move. The drive assembly includes two hydraulic rods fixedly installed on one side of the base plate, and the telescopic ends of the hydraulic rods are fixedly connected to one side of the operating table.

[0008] Preferably, the driving assembly also includes sliding grooves on both sides of the base plate, and sliding columns are slidably installed inside the two sliding grooves. Notches compatible with the sliding columns are opened on both sides of the operating table. Two first return springs are fixedly installed on the side of the base plate away from the hydraulic rod, and the other ends of the two first return springs are fixedly connected to one side of the operating table.

[0009] Preferably, the two sliding grooves are both opened in an inclined shape, and the two sliding grooves are arranged opposite to each other.

[0010] Preferably, a first limit block is fixedly installed on both sides of the interior of the shell, a second limit block is fixedly installed on one side of the middle part of the contact block, the bottom of the second limit block is adapted to the top of the first limit block, and two push blocks are fixedly installed on the other side of the middle part of the contact block, the outer side surfaces of the two push blocks are convex and adapted to the bottom of the clamping claw, and a fixing plate is fixedly installed on both ends of the interior of the shell, and the side of the fixing plate close to the contact block is set at an obtuse angle, and a third return spring is provided on the side of the fixing plate close to the contact block, and one end of the third return spring is fixedly connected to the fixing plate.

[0011] Preferably, the outer side surfaces of the two second limiting blocks are both arranged in an inclined shape, and the bottom of the clamping jaws are rotatably mounted with limiting wheels that are adapted to the outer side surfaces of the second limiting blocks.

[0012] Preferably, one end of the two clamping jaws away from the limiting wheel is rotatably mounted with a clamping arm, the clamping arm is arranged in an L-shape, and rollers are rotatably mounted on both ends of the clamping arm, and a plurality of telescopic columns are fixedly mounted on one side of the clamping arm, and the telescopic ends of the plurality of telescopic columns are fixedly connected to an abutment block, and a fourth return spring is fixedly mounted on the middle part of the bottom surface of the abutment block, and the other end of the fourth return spring is fixedly connected to the clamping arm, and the top surface of the abutment block is arranged in an outward convex arc shape.

[0013] Preferably, a plurality of universal ball heads are provided in the middle of the operating table.

[0014] Beneficial effects of the utility model:

[0015] 1. This type of hydraulic clamp for multi-angle milling of engine cylinder blocks is equipped with a drive component and a clamping component. The clamping component achieves precise clamping of the engine cylinder block through the coordinated work of components such as the shell, contact block, clamping claw and push block. The contact block slides through the contact roller, pushing the clamping claw inward and clamping the engine cylinder block in the obtuse-angle groove. At the same time, the cooperation between the bottom of the clamping claw and the limiting wheel, as well as the squeezing of the third return spring, provide double clamping force. This clamping mechanism ensures the stable fixation of the engine cylinder block at different angles, enhances the accuracy of the clamping process, reduces dependence on manual operation, and improves the safety and reliability of operation.

[0016] 2. This type of hydraulic clamp for multi-angle milling of engine cylinder blocks has clamping arms and abutment blocks in the clamping assembly. When the engine cylinder block contacts the roller and continues to be pushed inward, the two clamping arms rotate relative to each other to cause the two abutment blocks to contact the engine cylinder block. Under the action of the fourth return spring, the two abutment blocks apply a clamping force to the engine cylinder block, which can not only clamp the surface of the cylinder block at multiple angles, but also further fix the engine cylinder block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0020] Figure 3 This is a schematic diagram of the planar structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the split structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the clamping assembly of the utility model;

[0023] Figure 6 This is a schematic diagram of the planar structure of the clamping assembly of the utility model;

[0024] Figure 7 For this utility model Figure 6 Enlarged structural diagram at point B in the middle.

[0025] The following are marked in the figure:

[0026] 1. Operating table; 2. Hydraulic rod; 3. Bottom plate; 4. First return spring; 5. Sliding groove; 6. Notch; 7. Sliding column; 8. Universal ball joint; 9. Housing; 10. Mounting hole; 11. Fixing plate; 12. Second return spring; 13. First limit block; 15. Third return spring; 16. Contact block; 17. Second limit block; 18. Push block; 19. Contact roller; 20. Clamping claw; 21. Clamping arm; 22. Roller; 23. Telescopic column; 24. Abutment block; 25. Fourth return spring; 26. Limiting wheel. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0029] like Figures 1 to 7 As shown, the hydraulic clamp for multi-angle milling of engine cylinder blocks includes: a base plate 3 and an operating table 1 slidably mounted on the base plate 3; a clamping assembly, which is disposed on the top surface of the operating table 1 and is used to clamp the engine cylinder block; and a drive assembly, which is disposed on one side of the base plate 3 and is used to drive the clamping assembly to move. The drive assembly includes two hydraulic rods 2 fixedly mounted on one side of the base plate 3, with the telescopic ends of the hydraulic rods 2 fixedly connected to one side of the operating table 1. Several universal ball joints 8 are disposed in the middle of the operating table 1.

[0030] First, place the engine cylinder block on the operating table 1, adjust the clamping assembly to ensure that the cylinder block is firmly clamped, then start the driving assembly, and drive the clamping assembly to clamp the cylinder block through the telescopic movement of the two hydraulic rods 2. After the milling is completed, retract the hydraulic rods 2, restore the operating table 1 and the clamped cylinder block to their initial positions, release the clamping assembly, and remove the processed cylinder block. During the entire operation, the smooth drive of the hydraulic system and the support and sliding of the universal ball head 8 are utilized to achieve efficient and precise multi-angle milling processing, thereby improving work efficiency and processing quality.

[0031] like Figure 1 、 Figure 3 、 Figure 4 As shown, the drive assembly also includes sliding grooves 5 opened on both sides of the base plate 3, and sliding columns 7 are slidably installed inside the two sliding grooves 5. Notches 6 adapted to the sliding columns 7 are opened on both sides of the operating table 1. Two first return springs 4 are fixedly installed on the side of the base plate 3 away from the hydraulic rod 2. The other ends of the two first return springs 4 are fixedly connected to one side of the operating table 1. The two sliding grooves 5 are opened in an inclined shape and are arranged opposite to each other.

[0032] Turn on the drive assembly, and through the telescopic movement of the hydraulic rod 2, the output end of the hydraulic rod 2 pushes the operating table 1 away from the hydraulic rod 2. While the operating table 1 moves forward along the sliding grooves 5 on both sides of the base plate 3, the clamping assembly also moves outward. Since the sliding grooves 5 are inclined, the operating table 1 will automatically adjust its angle during movement to achieve multi-angle milling operations. By adjusting the pushing distance of the hydraulic rod 2, engine cylinders of different specifications can be conveniently clamped to meet various processing requirements. After the milling operation is completed, the hydraulic rod 2 is closed, and the two first reset springs 4 start working to reset the operating table 1 to its initial position. During the reset process, the operating table 1 moves in the opposite direction along the sliding grooves 5 to ensure that the clamping assembly and the cylinder body return to their original positions and prepare for the next operation.

[0033] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 6As shown, the clamping assembly comprises two housings 9 slidably mounted on both sides of the operation table top 1, the two housings 9 are oppositely arranged, and the side of the housing 9 away from the center of the operation table top 1 is provided with a mounting hole 10 fixedly sleeved with the sliding column 7, the middle part of the housing 9 is slidably mounted with a contact block 16, one end of the contact block 16 is rotatably mounted with a contact roller 19, the inside bottom end of the housing 9 is fixedly mounted with a second reset spring 12, the other end of the second reset spring 12 is fixedly connected with the other end of the contact block 16, both sides of the housing 9 are rotatably mounted with a clamping jaw 20, both sides of the inside of the housing 9 are fixedly mounted with a first limiting block 13, one side of the middle part of the contact block 16 is fixedly mounted with a second limiting block 17, the bottom of the second limiting block 17 is matched with the top of the first limiting block 13, the other side of the middle part of the contact block 16 is fixedly mounted with two pushing blocks 18, the outer side of the two pushing blocks 18 is protruding and matched with the bottom of the clamping jaw 20, both ends of the inside of the housing 9 are fixedly mounted with a fixed plate 11, one side of the fixed plate 11 close to the contact block 16 is obtusely arranged, one side of the fixed plate 11 close to the contact block 16 is provided with a third reset spring 15, one end of the third reset spring 15 is fixedly connected with the fixed plate 11, the outer side of the two second limiting blocks 17 is obliquely arranged, the bottom of the clamping jaw 20 is rotatably mounted with a limiting wheel 26 matched with the outer side of the second limiting block 17;

[0034] When the engine block is placed on the clamping assembly, the engine block contacts the contact roller 19, under the action of external force, the contact block 16 slides inward through the rotation of the contact roller 19, when the contact block 16 slides to the maximum clamping range, the second limiting block 17 contacts the first limiting block 13, the contact block 16 stops sliding, at this time, the sliding of the contact block 16 will push the pushing block 18, and then push the clamping jaw 20 to close inward, in the process of the clamping jaw 20 closing into the obtuse angle slot of the fixed plate 11, the bottom of the clamping jaw 20 is matched with the limiting wheel 26, and the third reset spring 15 is extruded, realizing double fixation, this clamping mechanism not only ensures the stable clamping of the engine block, but also makes the clamping process more accurate and stable, effectively improves the operation efficiency of the clamping assembly, reduces the dependence on manual operation, and improves the safety and reliability in the clamping process.

[0035] As shown in Figure 1 , Figure 2 , Figure 7 The end of the two clamping jaws 20 away from the limiting wheel 26 is rotatably mounted with a clamping arm 21, the clamping arm 21 is L-shaped, both ends of the clamping arm 21 are rotatably mounted with a roller 22, one side of the clamping arm 21 is fixedly mounted with a plurality of telescopic columns 23, the telescopic end of the plurality of telescopic columns 23 is fixedly connected with an abutting block 24, the bottom surface of the abutting block 24 is fixedly mounted with a fourth reset spring 25, the other end of the fourth reset spring 25 is fixedly connected with the clamping arm 21, the top surface of the abutting block 24 is outwardly convexly arc-shaped;

[0036] The engine cylinder body contacts the roller 22 and continues to be pushed inward. The two clamping arms 21 rotate relative to each other to cause the two abutment blocks 24 to contact the engine cylinder body. Under the action of the fourth return spring 25, the two abutment blocks 24 apply a clamping force to the engine cylinder body, which can not only clamp different surfaces of the cylinder body, but also further fix the engine cylinder body.

[0037] This application realizes stable clamping and locking of the engine cylinder at different angles through a clamping device composed of a return spring and a limiting wheel 26, combined with the composite movement of the sliding groove 5 inclination angle and the clamping structure, which is sufficient to provide sufficient clamping force for milling operations.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0039] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A hydraulic fixture for multi-angle milling of engine cylinder blocks, characterized in that: include: A base plate (3) and an operating table (1) slidably mounted on the base plate (3); A driving assembly, the driving assembly is arranged on one side of the base plate (3), the driving assembly is used to drive the clamping assembly to move, the driving assembly includes two hydraulic rods (2) fixedly installed on one side of the base plate (3), the telescopic ends of the hydraulic rods (2) are fixedly connected to one side of the operating table (1), and the driving assembly also includes sliding grooves (5) opened on both sides of the base plate (3), and sliding columns (7) are slidably installed inside the two sliding grooves (5); A clamping assembly is provided on the top surface of an operating table (1), and is used to clamp an engine cylinder block. The clamping assembly includes a shell (9) slidably mounted on both sides of the operating table (1), and the two shells (9) are arranged opposite to each other. A mounting hole (10) is provided on the side of the shell (9) away from the center of the operating table (1) and fixedly sleeved with the sliding column (7). A contact block (16) is slidably mounted on the middle part of the shell (9), and a contact roller (19) is rotatably mounted on one end of the contact block (16). A second return spring (12) is fixedly mounted on the inner bottom end of the shell (9), and the other end of the second return spring (12) is fixedly connected to the other end of the contact block (16). Clamping claws (20) are rotatably mounted on both sides of the shell (9).

2. The hydraulic clamp for multi-angle milling of engine cylinder block according to claim 1, characterized in that: Notches (6) adapted to the sliding columns (7) are provided on both sides of the operating table (1); two first return springs (4) are fixedly mounted on the side of the bottom plate (3) away from the hydraulic rod (2); the other ends of the two first return springs (4) are fixedly connected to one side of the operating table (1).

3. The hydraulic clamp for multi-angle milling of engine cylinder block according to claim 2, characterized in that: The two sliding grooves (5) are both opened in an inclined shape, and the two sliding grooves (5) are arranged opposite to each other.

4. The hydraulic clamp for multi-angle milling of an engine cylinder block according to claim 1, characterized in that: A first limit block (13) is fixedly installed on both sides of the interior of the shell (9), a second limit block (17) is fixedly installed on one side of the middle of the contact block (16), the bottom of the second limit block (17) is adapted to the top of the first limit block (13), two push blocks (18) are fixedly installed on the other side of the middle of the contact block (16), the outer side surfaces of the two push blocks (18) are convex and adapted to the bottom of the clamping claw (20), a fixed plate (11) is fixedly installed on both ends of the interior of the shell (9), the side of the fixed plate (11) close to the contact block (16) is set in an obtuse angle, and a third return spring (15) is provided on the side of the fixed plate (11) close to the contact block (16), and one end of the third return spring (15) is fixedly connected to the fixed plate (11).

5. The hydraulic clamp for multi-angle milling of engine cylinder block according to claim 4, characterized in that: The outer side surfaces of the two second limit blocks (17) are both arranged in an inclined shape, and the bottom of the clamping jaws (20) is rotatably mounted with a limit wheel (26) adapted to the outer side surfaces of the second limit blocks (17).

6. The hydraulic clamp for multi-angle milling of an engine cylinder block according to claim 5, characterized in that: The ends of the two clamping jaws (20) away from the limiting wheel (26) are both rotatably mounted with clamping arms (21), the clamping arms (21) are arranged in an L-shape, and rollers (22) are rotatably mounted on both ends of the clamping arms (21), and a plurality of telescopic columns (23) are fixedly mounted on one side of the clamping arms (21), and the telescopic ends of the plurality of telescopic columns (23) are fixedly connected with abutment blocks (24), and a fourth reset spring (25) is fixedly mounted on the middle part of the bottom surface of the abutment block (24), and the other end of the fourth reset spring (25) is fixedly connected to the clamping arm (21), and the top surface of the abutment block (24) is arranged in an outward convex arc shape.

7. The hydraulic clamp for multi-angle milling of an engine cylinder block according to claim 1, characterized in that: A plurality of universal ball heads (8) are provided in the middle of the operating table (1).

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