Crankshaft positioning clamp

Abstract

The utility model relates to the technical field of crankshafts, and discloses a crankshaft positioning clamp which comprises a base and a positioning assembly, and the positioning assembly comprises a limiting column, a limiting block, a rotating handle, a threaded rod, a clamping block, a placing plate and a bearing. According to the positioning clamp for the crankshaft, the effect of positioning the crankshaft is achieved through mutual cooperative use of the arranged positioning assemblies, the crankshaft is placed on the top of a placing plate, then a rotating handle is rotated to drive a threaded rod to rotate, so that a bearing is driven to rotate, and a clamping block is driven to move up and down; according to the crankshaft clamping device, the clamping blocks are arranged, so that the clamping blocks can be conveniently moved to the top of a crankshaft, the crankshaft can be conveniently positioned and fixed, the problem that the crankshaft moves in the machining process to affect the deviation of the machining position is solved as much as possible by fixing the crankshaft, meanwhile, inconvenience of manual fixing is avoided as much as possible, and the working efficiency of workers is improved as much as possible.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft technology, specifically a crankshaft positioning fixture. Background Technology

[0002] The crankshaft is the most important component in an engine. It bears the force transmitted from the connecting rod and converts it into torque, which is then output through the crankshaft to drive other accessories on the engine. The crankshaft is subjected to the combined effects of centrifugal force from the rotating mass, periodically changing gas inertial force, and reciprocating inertial force, resulting in bending and torsional loads. Therefore, fixtures are necessary during crankshaft machining to secure the crankshaft and facilitate machining. Thus, using positioning fixtures is essential during processing.

[0003] Existing crankshaft positioning fixtures are not secure enough, which makes them prone to affecting the machining results if the crankshaft moves during machining. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a crankshaft positioning fixture with advantages such as good positioning effect, thus solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned good positioning effect, this utility model provides the following technical solution: a crankshaft positioning fixture, including a base and a positioning assembly, wherein the positioning assembly includes a limiting post, a limiting block, a throttle, a threaded rod, a clamping block, a placement plate, and a bearing.

[0008] A limiting block is fixedly connected to the top of one side of the limiting post. A threaded rod is threadedly connected inside the limiting block. A throttle is fixedly connected to the top of the threaded rod. A bearing is rotatably connected to the bottom of the threaded rod. A clamping block is fixedly connected to the bottom of the bearing. A placement plate is fixedly connected to the bottom of one side of the limiting post. The crankshaft is placed on the top of the placement plate. By rotating the throttle, the threaded rod is rotated, which in turn rotates the bearing. This makes it easy to move the clamping block to the top of the crankshaft, thus facilitating the positioning and clamping of the crankshaft.

[0009] Preferably, a hydraulic rod is fixedly connected to the middle of the top of the base, and a lifting plate is fixedly connected to the top of the hydraulic rod. The hydraulic rod is opened according to the user's needs, and the lifting plate is pushed up and down by the hydraulic rod, so as to facilitate the adjustment of the height.

[0010] Preferably, both ends of the bottom of the lifting plate are fixedly connected to telescopic rods, and both ends of the top of the lifting plate are fixedly connected to adjustment components. By pushing the lifting plate up and down, the telescopic rods are extended and retracted, thereby facilitating the movement of the lifting plate to a specified height.

[0011] Preferably, the adjustment assembly includes a fixed column that is fixedly connected to both ends of the top of the lifting plate, and an electric push rod is fixedly connected to the middle of one side of the fixed column. The adjustment assembly is used to facilitate the fixing of crankshafts of different sizes and to facilitate the processing of different positions of the crankshaft.

[0012] Preferably, a sliding rod is fixedly connected to the bottom end of one side of the fixed column, and sliders are slidably connected to both ends of the outer wall of the sliding rod. The electric push rod is activated according to the size of the crankshaft, and the limit column is pushed by the electric push rod, thereby driving the limit column to move left and right, thereby driving the slider to move left and right on the outer wall of the sliding rod, so as to facilitate moving the limit column to the designated position.

[0013] Preferably, a connecting block is fixedly connected to the top of the slider, and the top of the connecting block is fixedly connected to the bottom of the limiting post. The slider is designed to make the limiting post move more smoothly.

[0014] Preferably, both ends of the bottom of the base are fixedly connected with pads, and the pads are centrally symmetrical about the vertical line of the base. The symmetrical structure of the pads makes it easier to place the clamp as a whole more stably.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a crankshaft positioning fixture, which has the following beneficial effects:

[0017] 1. The crankshaft positioning fixture, through the coordinated use of the positioning components, achieves the effect of positioning the crankshaft. By placing the crankshaft on top of the placement plate and then turning the throttle to drive the threaded rod to rotate, which in turn drives the bearing to rotate, thereby causing the clamping block to move up and down. This facilitates moving the clamping block to the top of the crankshaft, making it easy to position and fix the crankshaft. By fixing the crankshaft, the problem of crankshaft movement during processing and affecting the processing position deviation is minimized. At the same time, the inconvenience of manual fixing is also minimized, thereby improving the work efficiency of the staff.

[0018] 2. The positioning fixture for this crankshaft, through the coordinated use of the adjustable components, enables the machining of different positions on the crankshaft. By activating the electric push rod, the limiting column is pushed, which in turn causes the slider to move left and right on the outer wall of the slide rod. This facilitates the adjustment of the spacing, making it easy to fix crankshafts of different sizes and adjust their positions. This enhances the practicality of the fixture and allows for machining of different positions on the crankshaft. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a schematic diagram of the positioning component structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Base; 2. Telescopic rod; 3. Hydraulic rod; 4. Lifting plate; 5. Adjustment assembly; 501. Fixed column; 502. Slide rod; 503. Slider; 504. Connecting block; 505. Electric push rod; 6. Positioning assembly; 601. Limiting column; 602. Limiting block; 603. Rotary handle; 604. Threaded rod; 605. Clamping block; 606. Placement plate; 607. Bearing; 7. Foot pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] A preferred embodiment of the crankshaft positioning clamp provided by this utility model is, for example... Figures 1 to 4 As shown: A crankshaft positioning fixture includes a base 1 and a positioning component 6. The positioning component 6 includes a limiting post 601, a limiting block 602, a throttle 603, a threaded rod 604, a clamping block 605, a placement plate 606, and a bearing 607.

[0027] A limiting block 602 is fixedly connected to the top of one side of the limiting post 601. A threaded rod 604 is threadedly connected inside the limiting block 602. A throttle 603 is fixedly connected to the top of the threaded rod 604. A bearing 607 is rotatably connected to the bottom of the threaded rod 604. A clamping block 605 is fixedly connected to the bottom of the bearing 607. A placement plate 606 is fixedly connected to the bottom of one side of the limiting post 601. The crankshaft is placed on the top of the placement plate 606. By rotating the throttle 603, the threaded rod 604 is rotated, which in turn rotates the bearing 607. This makes it easy to move the clamping block 605 to the top of the crankshaft, thus facilitating the positioning and clamping of the crankshaft.

[0028] In this embodiment, a hydraulic rod 3 is fixedly connected to the middle of the top of the base 1, and a lifting plate 4 is fixedly connected to the top of the hydraulic rod 3. The hydraulic rod 3 is opened according to the user's needs, and the lifting plate 4 is pushed up and down by the hydraulic rod 3, so as to facilitate the adjustment of the height.

[0029] Example 2

[0030] Based on Embodiment 1, a preferred embodiment of the crankshaft positioning fixture provided by this utility model is as follows: Figures 1 to 4 As shown: both ends of the bottom of the lifting plate 4 are fixedly connected to telescopic rods 2, and both ends of the top of the lifting plate 4 are fixedly connected to adjustment components 5. By pushing the lifting plate 4 up and down, the telescopic rods 2 are extended and retracted, thereby facilitating the movement of the lifting plate 4 to the specified height.

[0031] In this embodiment, the adjustment component 5 includes a fixed column 501 that is fixedly connected to both ends of the top of the lifting plate 4. An electric push rod 505 is fixedly connected to the middle of one side of the fixed column 501. The adjustment component 5 is used to facilitate the fixing of crankshafts of different sizes and to facilitate the processing of different positions of the crankshaft.

[0032] Furthermore, a slide rod 502 is fixedly connected to the bottom end of one side of the fixed column 501. Both ends of the outer wall of the slide rod 502 are slidably connected to sliders 503. The electric push rod 505 is activated according to the size of the crankshaft. The electric push rod 505 pushes the limiting column 601, thereby causing the limiting column 601 to move left and right. This causes the sliders 503 to move left and right on the outer wall of the slide rod 502, thus facilitating the movement of the limiting column 601 to the designated position.

[0033] Furthermore, a connecting block 504 is fixedly connected to the top of the slider 503. The top of the connecting block 504 is fixedly connected to the bottom of the limiting post 601. The slider 503 is designed to make the limiting post 601 move more smoothly.

[0034] In addition, both ends of the bottom of the base 1 are fixedly connected with pads 7. The pads 7 are centrally symmetrical about the vertical line of the base 1. The symmetrical structure of the pads 7 makes it easier to place the fixture more stably.

[0035] In use, firstly, the hydraulic rod 3 is activated according to the user's needs. The hydraulic rod 3 pushes the lifting plate 4 up and down, thereby causing the telescopic rod 2 to extend and retract, thus facilitating the movement of the lifting plate 4 to the designated height. Then, according to the size of the crankshaft, the electric push rod 505 is activated. The electric push rod 505 pushes the limiting post 601, thereby causing the limiting post 601 to move left and right, which in turn causes the slider 503 to move left and right on the outer wall of the slide rod 502, thus facilitating the movement of the limiting post 601 to the designated position. Then, the crankshaft is placed on top of the placement plate 606. By turning the throttle 603, the threaded rod 604 is rotated, which in turn causes the bearing 607 to rotate, thus facilitating the movement of the clamping block 605 to the top of the crankshaft, thus facilitating the positioning and clamping of the crankshaft.

[0036] In summary, the positioning fixture of this crankshaft facilitates the fixing and positioning of the fixture, and also facilitates the machining of different positions of the fixture.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crankshaft positioning fixture, comprising a base (1) and a positioning assembly (6), characterized in that: The positioning component (6) includes a limiting post (601), a limiting block (602), a throttle (603), a threaded rod (604), a clamping block (605), a placement plate (606), and a bearing (607); A limiting block (602) is fixedly connected to the top of one side of the limiting post (601). A threaded rod (604) is threadedly connected inside the limiting block (602). A throttle (603) is fixedly connected to the top of the threaded rod (604). A bearing (607) is rotatably connected to the bottom of the threaded rod (604). A clamping block (605) is fixedly connected to the bottom of the bearing (607). A placement plate (606) is fixedly connected to the bottom of one side of the limiting post (601).

2. The crankshaft positioning fixture according to claim 1, characterized in that: A hydraulic rod (3) is fixedly connected to the middle of the top of the base (1), and a lifting plate (4) is fixedly connected to the top of the hydraulic rod (3).

3. A crankshaft positioning fixture according to claim 2, characterized in that: Telescopic rods (2) are fixedly connected to both ends of the bottom of the lifting plate (4), and adjustment components (5) are fixedly connected to both ends of the top of the lifting plate (4).

4. A crankshaft positioning fixture according to claim 3, characterized in that: The adjustment assembly (5) includes a fixed column (501) that is fixedly connected to both ends of the top of the lifting plate (4), and an electric push rod (505) is fixedly connected to the middle of one side of the fixed column (501).

5. A crankshaft positioning fixture according to claim 4, characterized in that: A sliding rod (502) is fixedly connected to the bottom end of one side of the fixed column (501), and sliders (503) are slidably connected to both ends of the outer side wall of the sliding rod (502).

6. A crankshaft positioning fixture according to claim 5, characterized in that: The top of the slider (503) is fixedly connected to a connecting block (504), and the top of the connecting block (504) is fixedly connected to the bottom of the limiting post (601).

7. A crankshaft positioning fixture according to claim 1, characterized in that: Both ends of the bottom of the base (1) are fixedly connected to pads (7), and the pads (7) are centrally symmetrical about the vertical line of the base (1).

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