Crankshaft machining clamp

Abstract

The utility model belongs to the technical field of crankshaft machining, and discloses a crankshaft machining clamp which comprises a rack table, the right side of the top end of the rack table is fixedly connected with a right side rack, the top of the right side rack is provided with a right side positioning clamping block in a sliding mode, and the left side of the rack table is provided with a left side positioning clamping block. The left side positioning clamping block is provided with a rotating adjuster, the rotating adjuster is fixedly connected with the left side positioning clamping block, a left side rack is slidably connected to the interior of the bottom end of the left side positioning clamping block, left side push plates are fixedly connected to the two sides of the left side rack, and springs are fixedly arranged on the inner sides of the left side push plates; by means of the technical scheme, the problems that in the prior art, due to the fact that a crankshaft cannot rotate after being fixed, machining of different angles of the crankshaft is not appropriate and inconvenient are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crankshaft processing, in particular to a clamp for crankshaft processing. Background Art

[0002] Introduction: The crankshaft is the main rotating mechanism of the engine. It is responsible for converting the up and down reciprocating motion of the piston into its own circular motion. The structure of the crankshaft is extremely delicate. The ingenious design includes the main shaft, connecting rod shaft, crank, balance weight and oil channel. However, due to its ingenious structure, the processing process is also relatively complicated.

[0003] At the same time, the patent with announcement number CN 219818941 U describes a fixture for crankshaft processing. The utility model designs a positioning clamping component to position and clamp the crankshaft, and designs a supporting component to support the crankshaft journal. During the rotation processing of the crankshaft, the supporting wheel will rotate with the crankshaft and provide support force for the crankshaft. When the crankshaft is too long, the processing accuracy can be improved by adjustment.

[0004] When the existing crankshaft processing fixture is used and this device is used for clamping, the crankshaft processing may be inconvenient due to the inability to find a suitable height for processing, or the crankshaft may be damaged due to inconvenient operation at too low a height. It is found that the fixture cannot be adjusted for a second time during the processing of the crankshaft. It is necessary to loosen the gap of the fixture and adjust the orientation of the crankshaft to change the processing position of the crankshaft. This operation process is cumbersome, which increases the number of adjustment operations of the staff for the crankshaft processing, and the processing is time-consuming and labor-intensive.

[0005] Therefore, a clamp for crankshaft machining is proposed in view of the above problems. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a clamp for crankshaft processing, which has the advantage of adding a plate that can move up and down on the fixed plate, thereby solving the problem of inconvenient processing due to insufficient height in some situations.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fixture for crankshaft processing, comprising a frame table, a right side frame is fixedly connected to the right side of the top end of the frame table, a right positioning clamping block is slidably arranged on the top of the right frame, a left positioning clamping block is arranged on the left side of the frame table, a rotation adjuster is arranged on the left positioning clamping block, and the rotation adjuster is fixedly connected to the left positioning clamping block, the bottom end of the left positioning clamping block is slidably connected to the left frame, pull rings are fixedly connected to the two sides of the left frame, and left push plates are fixedly connected to the two sides of the left frame, a spring is fixedly arranged on the inner side of the left push plate, the other side of the spring is fixedly connected to the right push plate, and the left push plate and the right push plate are both slidably connected to the square groove.

[0008] Preferably, a sliding groove is provided on the front side of the frame platform, a support frame is slidably provided inside the sliding groove, a support plate is provided inside the support frame, and the support plate is slidably connected to the support frame, and a support hand rest is fixedly connected to the other end of the support plate.

[0009] Preferably, the left positioning clamping block is slidably connected to the left frame, a thread groove is opened inside the left side of the left positioning clamping block, a left bolt is spirally connected inside the thread groove of the left positioning clamping block, and the other end of the left bolt is tightly pressed against the left frame.

[0010] Preferably, a thread groove is provided on the top of the left positioning clamping block, and a positioner is connected inside the thread groove.

[0011] Preferably, the right positioning clamping block is slidably connected to the right frame, a thread groove is opened inside the right side of the right positioning clamping block, a right bolt is spirally connected inside the thread groove of the right positioning clamping block, and the other end of the right bolt is tightly pressed against the right frame.

[0012] Preferably, the support plate is spirally connected to the threaded shaft, the threaded shaft completely penetrates the top of the support frame, and the other end of the threaded shaft is fixedly connected to the handle.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model increases the plate that can move up and down to the fixed plate, so that the height to be processed can be adjusted as needed, which can solve the problem of inconvenient processing due to insufficient height in some cases, so that the clamp can be suitable for more different types of crankshaft processing and different processing height requirements. At the same time, the processing position of the crankshaft can be adjusted more conveniently by rotating the rotary regulator, which is more convenient to use.

[0015] 2. The utility model can better clamp the crankshaft through the contractility of the spring, and can also move the left positioning clamping block left and right through the stretchability of the spring to adjust it to a length suitable for the crankshaft to be processed, which not only increases the stability of the overall structure, but also increases the applicability of the fixture to more different types of crankshaft processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the fixture for crankshaft processing of the utility model;

[0017] Figure 2 This is a schematic diagram of the spring positioning structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the pull ring and the rotary regulator of the utility model;

[0019] Figure 4 This is a schematic diagram of the auxiliary support structure of the utility model.

[0020] In the figure: 1, frame table; 2, rotary adjuster; 3, left frame; 4, handle; 5, threaded shaft; 6, right positioning clamping block; 7, right bolt; 8, right frame; 9, crankshaft; 10, sliding groove; 11, right push plate; 12, support frame; 13, support plate; 14, spring; 15, pull ring; 16, positioner; 17, left bolt; 18, support hand rest; 19, left positioning clamping block; 20, square groove; 21, left push plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 3As shown, the utility model provides a clamp for crankshaft processing, including a frame platform 1, a right side frame 8 is fixedly connected to the right side of the top end of the frame platform 1, and a right side positioning clamping block 6 is slidably arranged on the top of the right side frame 8, a left side positioning clamping block 19 is arranged on the left side of the frame platform 1, and a rotation adjuster 2 is arranged on the left side positioning clamping block 19, and the rotation adjuster 2 is fixedly connected to the left side positioning clamping block 19, so that when the angle needs to be adjusted, no external tools are needed, which can save time, and the bottom end of the left side positioning clamping block 19 is internally slidably connected to the left side frame 3, and pull rings 15 are fixedly connected to the two sides of the left side frame 3, and left side push plates 21 are fixedly connected to the two sides of the left side frame 3, and a spring 14 is fixedly arranged on the inner side of the left side push plate 21, and the other side of the spring 14 is fixedly connected to the right side push plate 11, so that the elasticity and ductility of the spring 14 can be used at the same time, so that it plays a great role in fixing the crankshaft 9, and the left side push plate 21 and the right side push plate 11 are both slidably connected to the square groove 20, which increases the mobility.

[0023] A sliding groove 10 is specifically provided on the front side of the frame 1, and a support frame 12 is slidingly provided inside the sliding groove 10. A support plate 13 is provided inside the support frame 12, and the support plate 13 is slidingly connected to the support frame 12. A support hand rest 18 is fixedly connected to the other end of the support plate 13. The support hand rest 18 can provide auxiliary support for the crankshaft 9, and also improves the processing precision.

[0024] Furthermore, the left positioning clamping block 19 is slidably connected to the left frame 3 , a threaded groove is provided inside the left side of the left positioning clamping block 19 , a left bolt 17 is spirally connected inside the threaded groove of the left positioning clamping block 19 , and the other end of the left bolt 17 is tightly pressed against the left frame 3 .

[0025] Furthermore, a threaded groove is provided on the top of the left positioning clamping block 19, and a positioner 16 is connected inside the threaded groove, so that the crankshaft 9 can be fixed conveniently and the stability is increased.

[0026] It is worth mentioning that the right positioning clamping block 6 is slidably connected to the right frame 8, a threaded groove is provided inside the right side of the right positioning clamping block 6, a right bolt 7 is spirally connected inside the threaded groove of the right positioning clamping block 6, and the other end of the right bolt 7 is tightly pressed against the right frame 8.

[0027] It is worth noting that the support plate 13 is spirally connected to the threaded shaft 5 , the threaded shaft 5 completely penetrates the top of the support frame 12 , and the other end of the threaded shaft 5 is fixedly connected to the handle 4 .

[0028] Working principle and process:

[0029] After taking out the rack 1, you can first pull the pull ring 15 to move the left positioning clamping block 19 through the square slot 20 to the rightmost side of the square slot 20, and then turn the handle 4 to drive the threaded shaft 5 to move the support plate 13 and the support hand rest 18 to the bottom of the support frame 12. You can adjust the height of the right positioning clamping block 6 by adjusting the tightness of the right bolt 7. When it is in a suitable position, tighten the right bolt 7 to make the right bolt 7 and the right rack 8 press tightly. The left side needs to be adjusted to the same height as the right side and then tighten the left bolt 17 to make the left bolt 17 press tightly against the left rack 3. Place one end of the crankshaft 9 in the hole of the right positioning clamping block 6, and then slowly pull the pull ring 15. Retract, the two ends of the spring 14 are respectively connected to the right push plate 11 and the left push plate 21, and the retraction of the spring 14 drives the left positioning clamping block 19 to clamp the crankshaft 9, and use the positioner 16 to fix the left side of the crankshaft 9, and then adjust the support frame 12 to move left and right to the appropriate position through the sliding groove 10, and move the support plate 13 upward until the support hand rest 18 fits under the crankshaft 9. If rotation processing is required, the positioner 16 can be loosened first, the rotation adjuster 2 is turned, the crankshaft 9 is rotated to the appropriate angle, and then the positioner 16 is used again to fix the crankshaft 9, so as to save time and effort when processing the crankshaft 9 and improve the processing accuracy.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for crankshaft machining, comprising a frame (1), characterized in that: The right side of the top of the frame platform (1) is fixedly connected with a right frame (8), the top of the right frame (8) is slidably provided with a right positioning clamping block (6), the left side of the frame platform (1) is provided with a left positioning clamping block (19), the left positioning clamping block (19) is provided with a rotation regulator (2), and the rotation regulator (2) is fixedly connected to the left positioning clamping block (19), the bottom end of the left positioning clamping block (19) is slidably connected with a left frame (3), the left frame (3) is fixedly connected with pull rings (15) on both sides, the left frame (3) is fixedly connected with left push plates (21) on both sides, the inner side of the left push plate (21) is fixedly provided with a spring (14), the other side of the spring (14) is fixedly connected to the right push plate (11), and the left push plate (21) and the right push plate (11) are both slidably connected to the square groove (20).

2. A crankshaft machining fixture according to claim 1, characterized in that: The front side of the frame platform (1) is provided with a sliding groove (10), a support frame (12) is slidably arranged inside the sliding groove (10), a support plate (13) is arranged inside the support frame (12), and the support plate (13) is slidably connected to the support frame (12), and the other end of the support plate (13) is fixedly connected to a support hand rest (18).

3. A crankshaft machining fixture according to claim 1, characterized in that: The left positioning clamping block (19) is slidably connected to the left frame (3); a thread groove is provided inside the left side of the left positioning clamping block (19); a left bolt (17) is spirally connected inside the thread groove of the left positioning clamping block (19); and the other end of the left bolt (17) is tightly pressed against the left frame (3).

4. A crankshaft machining fixture according to claim 1, characterized in that: A thread groove is formed on the top of the left positioning clamping block (19), and a positioner (16) is connected inside the thread groove.

5. The fixture for crankshaft machining according to claim 1, characterized in that: The right side positioning clamping block (6) is slidably connected to the right side frame (8); a thread groove is provided inside the right side of the right side positioning clamping block (6); a right side bolt (7) is spirally connected inside the thread groove of the right side positioning clamping block (6); and the other end of the right side bolt (7) is tightly pressed against the right side frame (8).

6. A crankshaft machining fixture according to claim 2, characterized in that: The support plate (13) is spirally connected to the threaded shaft (5), the threaded shaft (5) completely penetrates the top of the support frame (12), and the other end of the threaded shaft (5) is fixedly connected to the handle (4).

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