Multi-station clamping device for crankshaft machining

Abstract

This utility model relates to the field of crankshaft clamping technology, and proposes a multi-station clamping device for crankshaft machining. It includes a base plate, a support frame fixedly connected to the outer surface of the base plate, and a clamping structure connected to the outer surface of the base plate. The support frame has a support opening at its top. The clamping structure includes an electric slide rail fixedly connected to the outer surface of the base plate, an electric slider slidably connected to the outer surface of the electric slide rail, a sliding bracket fixedly connected to the outer surface of the electric slider, a vertical clamping cylinder fixedly connected to the upper back of the sliding bracket, a clamping block fixedly connected to the output end of the vertical clamping cylinder, an arc-shaped opening at the lower end of the clamping block, and a reinforcing component connected to the lower end of the clamping block. This technical solution solves the problem that existing multi-station clamping devices for crankshaft machining typically have single-station fixed positioning or non-adjustable clamping positions, requiring manual adjustment of the clamping position during machining of certain areas, resulting in low machining efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft clamping technology, specifically to a multi-station clamping device for crankshaft machining. Background Technology

[0002] As a core component of power machinery such as engines and compressors, crankshafts have complex structures and extremely high precision requirements, typically requiring multiple machining processes including turning, grinding, drilling, and dynamic balancing. In traditional machining processes, crankshafts need to be fixed to machine tools using clamping devices. However, due to their irregular structures such as multi-section journals, crank arms, and balance weights, single-station fixtures are often insufficient to meet the needs of multi-process machining, resulting in frequent disassembly, re-clamping, and repositioning during the machining process. However, the existing multi-station clamping devices for crankshaft machining typically have a fixed single station or an adjustable clamping position. When machining certain positions, the position of the clamped parts needs to be manually adjusted, resulting in low machining efficiency. Therefore, we propose a multi-station clamping device for crankshaft machining. Utility Model Content

[0003] This utility model proposes a multi-station clamping device for crankshaft machining, which solves the problem mentioned in the background art that the existing multi-station clamping devices for crankshaft machining usually have a single station fixed machining position or the clamping position is not adjustable, requiring manual adjustment of the position of the clamping part when machining certain positions, resulting in low machining efficiency.

[0004] The technical solution of this utility model is as follows: A multi-station clamping device for crankshaft machining includes a base plate, a support frame fixedly connected to the outer surface of the base plate, a clamping structure connected to the outer surface of the base plate, and a support opening at the top of the support frame. The clamping structure includes an electric slide rail fixedly connected to the outer surface of the base plate, an electric slider slidably connected to the outer surface of the electric slide rail, a sliding bracket fixedly connected to the outer surface of the electric slider, a vertical clamping cylinder fixedly connected to the upper back of the sliding bracket, a clamping block fixedly connected to the output end of the vertical clamping cylinder, an arc-shaped opening at the lower end of the clamping block, and a reinforcing component connected to the lower end of the clamping block.

[0005] As a further technical solution of this utility model, the number of support frames is several groups and they are distributed in a "I"-shaped array. An end plate is fixedly connected to one end of the base plate near one of the several groups of support frames, and an end positioning cylinder is fixedly connected to the other end of the base plate near one of the several groups of support frames.

[0006] As a further technical solution of this utility model, the output end of the end positioning cylinder is fixedly connected to a sliding snap-fit ​​connector, and the surface of the end plate is provided with a hole that matches one end of the crankshaft. The surface of the sliding snap-fit ​​connector matches the other end of the crankshaft. The positioning and fixing of both ends of the crankshaft is achieved by the end positioning cylinder pushing the sliding snap-fit ​​connector in conjunction with the end plate.

[0007] As a further technical solution of this utility model, the reinforcing component includes a groove formed on the inner surface of the lower end of the clamping block, a pushing spring is provided inside the groove, a sliding block is connected to the lower end of the pushing spring, and an anti-slip strip is fixedly connected to the lower end of the sliding block.

[0008] As a further technical solution of this utility model, the number of electric slide rails is two sets and they are distributed in parallel. The electric slider slides back and forth along the length direction of the electric slide rails. The number of electric sliders is several sets and they are distributed in an array.

[0009] As a further technical solution of this utility model, the end of the vertical clamping cylinder away from the output is fixedly connected to the sliding bracket by bolts. The vertical clamping cylinder output end extends to achieve vertical positioning and fixation of the crankshaft by the clamping block cooperating with the support frame and the supporting opening.

[0010] As a further technical solution of this utility model, the lower end of the sliding block is an arc-shaped structure that matches the arc-shaped opening. The sliding block slides up and down along the slide groove. The jacking spring is set vertically, and the upper and lower elastic ends of the jacking spring are fixedly connected to the clamping block and the sliding block, respectively.

[0011] As a further technical solution of this utility model, the number of the sliding groove, the jacking spring, the sliding block and the anti-slip strip are all two sets and are symmetrically distributed. The clamping block is an inverted "U" shaped structure. The clamping block is fixedly connected to the output end of the vertical clamping cylinder by bolts.

[0012] The working principle and beneficial effects of this utility model are as follows: In this invention, the clamping structure allows the sliding bracket, along with the vertical clamping cylinder and clamping block, to slide freely along the length of the crankshaft during use. This allows the vertical clamping cylinder to extend and fix the crankshaft vertically. Simultaneously, the extension of the end positioning cylinder allows the sliding snap-fit ​​connector and end plate to position and fix both ends of the crankshaft. Furthermore, the reinforcing components make the vertically fixed crankshaft more stable and prevent it from shifting. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1This is a schematic diagram of the multi-station clamping device for crankshaft machining according to this utility model; Figure 2 This utility model Figure 1 A schematic diagram of a partial structure; Figure 3 This is a partial structural diagram of the clamping structure of this utility model; Figure 4 This is a partial structural diagram of the clamping block of this utility model.

[0015] In the diagram: 1. Base plate; 2. Support frame; 3. Clamping structure; 31. Electric slide rail; 32. Electric slider; 33. Sliding bracket; 34. Vertical clamping cylinder; 35. Clamping block; 36. Arc-shaped opening; 37. Reinforcing component; 371. Slide groove; 372. Pushing spring; 373. Sliding block; 374. Anti-slip strip; 4. Support opening; 5. End plate; 6. End positioning cylinder; 7. Sliding snap-fit ​​connector. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1, as Figures 1-4 As shown, this embodiment proposes a multi-station clamping device for crankshaft machining, including a base plate 1, a support frame 2 fixedly connected to the outer surface of the base plate 1, a clamping structure 3 connected to the outer surface of the base plate 1, and a support opening 4 at the top of the support frame 2; the support frames 2 are arranged in a "I"-shaped array, an end plate 5 is fixedly connected to one end of the base plate 1 near one end of the support frames 2, and an end positioning cylinder 6 is fixedly connected to the other end of the base plate 1 near one end of the support frames 2; a sliding connector 7 is fixedly connected to the output end of the end positioning cylinder 6, and a hole matching one end of the crankshaft is opened on the surface of the end plate 5, and the surface of the sliding connector 7 matches the other end of the crankshaft. The end positioning cylinder 6 pushes the sliding connector 7 to cooperate with the end plate 5 to achieve positioning and fixing of both ends of the crankshaft.

[0018] The clamping structure 3 includes an electric slide rail 31 fixedly connected to the outer surface of the base plate 1. An electric slider 32 is slidably connected to the outer surface of the electric slide rail 31. A sliding bracket 33 is fixedly connected to the outer surface of the electric slider 32. A vertical clamping cylinder 34 is fixedly connected to the upper back of the sliding bracket 33. A clamping block 35 is fixedly connected to the output end of the vertical clamping cylinder 34. An arc-shaped opening 36 is provided at the lower end of the clamping block 35. A reinforcing component 37 is connected to the lower end of the clamping block 35.

[0019] There are two sets of electric slide rails 31, which are distributed in parallel. The electric sliders 32 slide back and forth along the length of the electric slide rails 31. There are several sets of electric sliders 32, which are distributed in an array. The end of the vertical clamping cylinder 34 away from the output is fixedly connected to the sliding bracket 33 by bolts. The vertical clamping cylinder 34 extends to the output end to achieve the vertical positioning and fixation of the crankshaft by the clamping block 35 in conjunction with the support frame 2 and the supporting opening 4.

[0020] The reinforcing component 37 includes a groove 371 formed on the inner surface of the lower end of the clamping block 35. A pushing spring 372 is provided inside the groove 371. A sliding block 373 is connected to the lower end of the pushing spring 372. An anti-slip strip 374 is fixedly connected to the lower end of the sliding block 373. The lower end of the sliding block 373 is an arc-shaped structure that matches the arc-shaped opening 36. The sliding block 373 slides up and down along the groove 371. The pushing spring 372 is set vertically, and the upper and lower elastic ends of the pushing spring 372 are fixedly connected to the clamping block 35 and the sliding block 373, respectively. There are two sets of groove 371, pushing spring 372, sliding block 373 and anti-slip strip 374, and they are all symmetrically distributed. The clamping block 35 is an inverted "U"-shaped structure. The clamping block 35 is fixedly connected to the output end of the vertical clamping cylinder 34 by bolts.

[0021] In this embodiment, during use, the sliding bracket 33, together with the vertical clamping cylinder 34 and the clamping block 35, can slide freely along the length of the crankshaft. Thus, the vertical clamping cylinder 34 can extend to fix the crankshaft vertically. At the same time, the extension of the end positioning cylinder 6 can enable the sliding connector 7 to fix the two ends of the crankshaft in conjunction with the end plate 5. The reinforcing component 37 can make the vertically fixed crankshaft more stable and prevent it from shifting.

[0022] In summary, the working principle of this utility model is as follows: During use, the crankshaft can be placed in the support opening 4 on several sets of support frames 2 by a robotic arm, and one end of the crankshaft is matched and inserted into the outer surface of the end plate 5. Then, by extending the end positioning cylinder 6, the sliding snap joint 7 is pushed to move towards one side of the crankshaft. Finally, the two ends of the crankshaft are fixed by the sliding snap joint 7 and the end plate 5. Then, the surface of the crankshaft is machined by the corresponding equipment, such as turning, grinding and drilling. During the above-mentioned use, the position of the sliding bracket 33 can be adjusted according to actual needs by sliding the electric slider 32 on the surface of the electric slide rail 31. Then, the vertical clamping cylinder 34 extends so that the clamping block 35 cooperates with the support frame 2 to vertically position and fix the crankshaft, which facilitates processing. Due to the movable nature of the electric slider 32, the position of the clamping block 35 acting on the crankshaft clamping and positioning can be controlled according to actual needs, so as to meet the vertical fixing needs of different areas of the crankshaft processing. Meanwhile, during the process of the clamping block 35 pressing down on the crankshaft, the push spring 372 will first contact the crankshaft, and push the sliding block 373 upward through the anti-slip strip 374. The sliding block 373 pushes the push spring 372 to contract. After the contraction is completed, the surface of the anti-slip strip 374 matches the arc surface of the arc-shaped opening 36. The crankshaft is fixed by the joint compression of the clamping block 35 and the anti-slip strip 374. The push spring 372 will push the sliding block 373, so that the sliding block 373 together with the anti-slip strip 374 compresses the crankshaft, making the vertical positioning effect of the clamping block 35 on the crankshaft better and effectively preventing the crankshaft from shifting during the processing.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-station clamping device for crankshaft machining, comprising a base plate (1), characterized in that, The outer surface of the base plate (1) is fixedly connected to a support frame (2), and the outer surface of the base plate (1) is connected to a clamping structure (3). The top of the support frame (2) is provided with a support opening (4). The clamping structure (3) includes an electric slide rail (31) fixedly connected to the outer surface of the base plate (1). An electric slider (32) is slidably connected to the outer surface of the electric slide rail (31). A sliding bracket (33) is fixedly connected to the outer surface of the electric slider (32). A vertical clamping cylinder (34) is fixedly connected to the upper back of the sliding bracket (33). A clamping block (35) is fixedly connected to the output end of the vertical clamping cylinder (34). An arc-shaped opening (36) is provided at the lower end of the clamping block (35). A reinforcing component (37) is connected to the lower end of the clamping block (35).

2. The multi-station clamping device for crankshaft machining according to claim 1, characterized in that, The number of support frames (2) is several groups and they are arranged in a "I"-shaped array. An end plate (5) is fixedly connected to one end of the base plate (1) near one end of the support frames (2). An end positioning cylinder (6) is fixedly connected to the other end of the base plate (1) near one end of the support frames (2).

3. The multi-station clamping device for crankshaft machining according to claim 2, characterized in that, The output end of the end positioning cylinder (6) is fixedly connected to a sliding snap joint (7). The surface of the end plate (5) is provided with a hole that matches one end of the crankshaft. The surface of the sliding snap joint (7) matches the other end of the crankshaft. The end positioning cylinder (6) pushes the sliding snap joint (7) to cooperate with the end plate (5) to achieve positioning and fixing of both ends of the crankshaft.

4. The multi-station gripping device for crankshaft machining according to claim 1, characterized in that, The reinforcing component (37) includes a groove (371) formed on the inner surface of the lower end of the clamping block (35). A push spring (372) is provided inside the groove (371). A sliding block (373) is connected to the lower end of the push spring (372). An anti-slip strip (374) is fixedly connected to the lower end of the sliding block (373).

5. The multi-station gripping device for crankshaft machining according to claim 1, characterized in that, The electric slide rails (31) are in two sets and are distributed in parallel. The electric sliders (32) slide back and forth along the length of the electric slide rails (31). The electric sliders (32) are in several sets and are distributed in an array.

6. The multi-station clamping device for crankshaft machining according to claim 5, characterized in that, The end of the vertical clamping cylinder (34) away from the output is fixedly connected to the sliding bracket (33) by bolts. The output end of the vertical clamping cylinder (34) extends to achieve the vertical positioning and fixation of the crankshaft by the clamping block (35) in conjunction with the support frame (2) and the support opening (4).

7. The multi-station gripping device for crankshaft machining according to claim 4, characterized in that, The lower end of the sliding block (373) is an arc-shaped structure that matches the arc-shaped opening (36). The sliding block (373) slides up and down along the slide groove (371). The push spring (372) is set vertically, and the upper and lower elastic ends of the push spring (372) are fixedly connected to the clamping block (35) and the sliding block (373) respectively.

8. The multi-station clamping device for crankshaft machining according to claim 7, characterized in that, The number of the slide groove (371), the top spring (372), the sliding block (373) and the anti-slip strip (374) are all in two sets and are symmetrically distributed. The clamping block (35) is an inverted "U" shaped structure. The clamping block (35) is fixedly connected to the output end of the vertical clamping cylinder (34) by bolts.

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