Positioning and clamping tool for cylinder block machining

Abstract

The utility model discloses an air cylinder body machining positioning and clamping tool which comprises a bottom plate, a supporting block is connected to the top of the bottom plate in a bolted mode, a clamping mechanism is arranged on the top of the supporting block, a positioning mechanism is arranged on the inner side of the clamping mechanism, the clamping mechanism comprises two transverse rods, the bottoms of the transverse rods are connected with the supporting block in a bolted mode, and the bottom of the transverse rods is connected with the supporting block in a bolted mode. According to the device, the sliding rod is in sliding fit with the first sliding block, the locking function of the adjusting bolt is combined, the transverse position of the clamping mechanism can be rapidly adjusted, and the device adapts to engine air cylinder bodies with different widths. And the sliding design of the sliding sleeve on the sliding rod is matched with the fixing of the limiting bolt, so that the flexible adjustment of the clamping height is further realized. The hydraulic corner pressing oil cylinder drives the pressing block to conduct accurate clamping, operation is easy and convenient, workpiece displacement can be effectively avoided, the clamping efficiency and stability are remarkably improved, and the clamping device is particularly suitable for machining requirements of engine air cylinder bodies of multiple specifications.

Description

Technical Field

[0001] This utility model belongs to the field of cylinder block processing technology, and specifically relates to a positioning and clamping fixture for cylinder block processing. Background Technology

[0002] The engine cylinder block is the core component of the engine, providing the basic structure and support for the entire engine's operation. It is usually cast from high-strength cast iron or aluminum alloy. During the machining process of the engine cylinder block, it needs to be stably clamped and precisely positioned to ensure machining accuracy.

[0003] Traditional clamping mechanisms typically employ a fixed structure, making it difficult to adapt to engine cylinder blocks of varying sizes, especially workpieces with significant differences in width and height. This results in poor versatility, necessitating frequent fixture changes and impacting production efficiency. To address these issues, we provide a cylinder block machining positioning and clamping fixture. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning and clamping fixture for cylinder block machining, so as to solve the problem mentioned in the background art that the traditional clamping mechanism usually adopts a fixed structure, which is difficult to adapt to engine cylinder blocks of different sizes, especially workpieces with large differences in width and height, resulting in poor versatility, the need to frequently change fixtures, and the impact on production efficiency.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a cylinder body machining positioning clamping fixture, including a base plate, a support block bolted to the top of the base plate, a clamping mechanism provided on the top of the support block, and a positioning mechanism provided on the inner side of the clamping mechanism.

[0006] The clamping mechanism includes two crossbars, the bottom of which is bolted to a support block. A slide bar is provided between the two crossbars, and a first slider is bolted to both ends of the slide bar. A first sliding groove adapted to the first slider is opened inside the crossbar, and the inside of the first sliding groove is slidably connected to the first slider. A sliding sleeve is slidably fitted on the surface of the slide bar. A hydraulic angle clamping cylinder is bolted to one side of the sliding sleeve. A pressure block is bolted to the telescopic end of the hydraulic angle clamping cylinder. A limit bolt is threaded to one side of the sliding sleeve, and one end of the limit bolt penetrates into the inside of the sliding sleeve. An adjusting bolt is threaded to the front of the first slider, and a through groove adapted to the adjusting bolt is opened on the front of the crossbar.

[0007] Preferably, the positioning mechanism includes a support plate, with crossbars bolted to the top and bottom of the support plate, a second sliding groove provided inside the support plate, a second slider slidably connected inside the second sliding groove, a threaded rod bolted to the front of the second slider, a positioning rod threaded to the surface of the threaded rod, and a fixing bolt threaded to the back of the second slider.

[0008] Preferably, reinforcing blocks are bolted to both sides of the back of the support block, and the bottom of the reinforcing blocks is bolted to the base plate.

[0009] Preferably, mounting holes are provided on both sides of the base plate, and sliding guide rods are bolted to both sides of the top of the base plate.

[0010] In summary, this utility model has the following beneficial effects:

[0011] This device, through the sliding engagement of the slide rod and the first slider, combined with the locking function of the adjusting bolt, can quickly adjust the lateral position of the clamping mechanism to adapt to engine cylinder blocks of different widths. The sliding design of the sleeve on the slide rod, combined with the fixing of the limit bolt, further enables flexible adjustment of the clamping height. The hydraulic rotary clamping cylinder drives the pressure block for precise clamping, which not only simplifies operation but also effectively prevents workpiece displacement, significantly improving clamping efficiency and stability, and is especially suitable for the machining needs of engine cylinder blocks of various specifications.

[0012] The device allows for flexible adjustment of the vertical position of the positioning rod by sliding the second slider within the second groove and locking the fixing bolts, ensuring precise matching with the piston bore of different engine cylinder blocks. The detachable connection design between the threaded rod and the positioning rod facilitates the replacement of positioning rods with different bore diameters, significantly reducing manual calibration time, improving positioning accuracy and production efficiency, while also reducing operational difficulty. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 3 This is an exploded view of a partial structure of this utility model;

[0016] Figure 4 This is an exploded view of a partial structure of this utility model.

[0017] Reference numerals: 1. Base plate; 2. Support block; 3. Clamping mechanism; 301. Crossbar; 302. Slide bar; 303. First slider; 304. First slide groove; 305. Sliding sleeve; 306. Hydraulic corner clamping cylinder; 307. Pressure block; 308. Limit bolt; 309. Adjusting bolt; 310. Through groove; 4. Positioning mechanism; 401. Support plate; 402. Second slide groove; 403. Second slider; 404. Threaded rod; 405. Positioning rod; 406. Fixing bolt; 5. Reinforcing block; 6. Mounting hole; 7. Sliding guide rod. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Example 1:

[0020] refer to Figure 1-4 A cylinder block machining positioning clamping fixture includes a base plate 1, a support block 2 bolted to the top of the base plate 1, a clamping mechanism 3 provided on the top of the support block 2, and a positioning mechanism 4 provided on the inner side of the clamping mechanism 3.

[0021] The clamping mechanism 3 includes two crossbars 301. The bottom of the crossbars 301 is bolted to the support block 2. A slide bar 302 is provided between the two crossbars 301. A first slider 303 is bolted to both ends of the slide bar 302. A first groove 304 adapted to the first slider 303 is opened inside the crossbar 301. The first groove 304 is slidably connected to the first slider 303. A slide sleeve 305 is slidably fitted on the surface of the slide bar 302. A hydraulic angle clamping cylinder 306 is bolted to one side of the slide sleeve 305. A pressure block 307 is bolted to the telescopic end of the hydraulic angle clamping cylinder 306. A limit bolt 308 is threaded to one side of the slide sleeve 305. One end of the limit bolt 308 penetrates into the interior of the slide sleeve 305. An adjusting bolt 309 is threaded to the front of the first slider 303. A through groove 310 adapted to the adjusting bolt 309 is opened on the front of the crossbar 301.

[0022] Brief description of usage: The user can pull the slide bar 302, causing the slide bar 302 to drive the first slider 303 to slide inside the first slide groove 304. Then, the user can tighten the adjusting bolt 309 to limit and fix the first slider 303. Then, the user can pull the sliding sleeve 305 to slide on the surface of the slide bar 302. Then, the user can tighten the limiting bolt 308 to limit and fix the sliding sleeve 305. By activating the hydraulic rotary clamping cylinder 306, the user can drive the pressure block 307 to limit and clamp the engine cylinder block. This can effectively and conveniently clamp the engine cylinder block according to its width, and also facilitate the height adjustment according to the clamping position of the engine cylinder block.

[0023] refer to Figure 1-4The positioning mechanism 4 includes a support plate 401, with crossbars 301 bolted to the top and bottom of the support plate 401 respectively. A second sliding groove 402 is provided inside the support plate 401, and a second slider 403 is slidably connected inside the second sliding groove 402. A threaded rod 404 is bolted to the front of the second slider 403, and a positioning rod 405 is threaded to the surface of the threaded rod 404. A fixing bolt 406 is threaded to the back of the second slider 403.

[0024] refer to Figure 2 Both sides of the back of the support block 2 are bolted with reinforcing blocks 5. The bottom of the reinforcing blocks 5 is bolted to the base plate 1. By setting the reinforcing blocks 5, the support block 2 can be effectively reinforced.

[0025] refer to Figure 1 The base plate 1 has mounting holes 6 on both sides and sliding guide rods 7 are bolted to both sides of the top of the base plate 1. The base plate 1 can be installed by bolts through the mounting holes 6.

[0026] Brief description of the usage process: The user can pull the second slider 403 to slide inside the second slide groove 402, and then tighten the fixing bolt 406 to limit and fix the second slider 403. Then, the positioning rod 405, which is adapted to the piston hole of the engine cylinder block, is threadedly connected to the threaded rod 404. The user can place the engine cylinder block on the top of the sliding guide rod 7 and push the engine cylinder block to slide on the top of the sliding guide rod 7, so that the piston hole of the engine cylinder block is engaged and positioned with the positioning rod 405, thereby effectively facilitating height adjustment according to the position of the piston hole of the engine cylinder block.

[0027] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A cylinder block machining positioning and clamping tool comprising a base plate (1), characterized in that: The top of the bottom plate (1) is bolted with a supporting block (2), the top of the supporting block (2) is provided with a clamping mechanism (3), the inner side of the clamping mechanism (3) is provided with a positioning mechanism (4); The clamping mechanism (3) comprises two cross bars (301), the bottom of the cross bar (301) is bolted with the supporting block (2), a sliding rod (302) is arranged between the two cross bars (301), the two ends of the sliding rod (302) are bolted with first sliding blocks (303), the inside of the cross bar (301) is provided with first sliding grooves (304) matched with the first sliding blocks (303), the inside of the first sliding groove (304) is slidably connected with the first sliding block (303), a sliding sleeve (305) is slidably arranged on the surface of the sliding rod (302), the sliding sleeve (305) is bolted with a hydraulic corner pressing oil cylinder (306) on one side, the telescopic end of the hydraulic corner pressing oil cylinder (306) is bolted with a pressing block (307), a limiting bolt (308) is threadedly connected on one side of the sliding sleeve (305), one end of the limiting bolt (308) penetrates into the inside of the sliding sleeve (305), an adjusting bolt (309) is threadedly connected on the front of the first sliding block (303), a through groove (310) matched with the adjusting bolt (309) is formed in the front of the cross bar (301).

2. The machining positioning and clamping tool for a cylinder block according to claim 1, characterized in that: The positioning mechanism (4) comprises a supporting plate (401), the top and bottom of the supporting plate (401) are bolted with the cross bar (301), the inside of the supporting plate (401) is provided with a second sliding groove (402), the inside of the second sliding groove (402) is slidably connected with a second sliding block (403), the front of the second sliding block (403) is bolted with a threaded rod (404), the surface of the threaded rod (404) is threadedly connected with a positioning rod (405), the back of the second sliding block (403) is threadedly connected with a fixing bolt (406).

3. The cylinder block machining positioning and clamping tooling of claim 1, wherein: The back of the supporting block (2) is bolted with reinforcing blocks (5) on both sides, the bottom of the reinforcing block (5) is bolted with the bottom plate (1).

4. The cylinder block machining positioning and clamping tooling of claim 1, wherein: Both sides of the bottom plate (1) are provided with mounting holes (6), both sides of the top of the bottom plate (1) are bolted with sliding guide rods (7).

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