Self-adaptive flexible clamp for machining automobile crankshaft

Abstract

The utility model relates to the technical field of crankshaft machining clamps, and discloses a self-adaptive flexible clamp for automobile crankshaft machining, which comprises a base, an adjusting mechanism is arranged at the top of the base, a clamping mechanism is arranged at the top of the adjusting mechanism, and the adjusting mechanism comprises an adjusting assembly, a transmission assembly and a stabilizing assembly. The adjusting assembly is arranged on the top of the base, the transmission assembly is arranged in the adjusting assembly, and the stabilizing assemblies are arranged on the front side and the rear side of the transmission assembly. According to the self-adaptive flexible clamp for machining the automobile crankshafts, the clamping mechanism is arranged, the interiors of conical clamping barrels are conical, and the inner diameters of the conical clamping barrels are gradually reduced from inside to outside, so that when the self-adaptive flexible clamp is used, the conical clamping barrels on the left side and the right side conduct inward clamping, and automobile crankshafts with different diameters can be stably clamped; and when the device is used, the device can be matched with automobile crankshafts of different sizes to be used, and the application range of the device in the using process is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crankshaft machining fixture, specifically for a kind of self-adapting flexible fixture for automobile crankshaft machining. BACKGROUND

[0002] Crankshaft is the most important component in engine. It bears the force from connecting rod, and converts it into torque through crankshaft output and drives other accessories on engine to work. Crankshaft is subjected to centrifugal force of rotating mass, periodically changing gas inertia force and reciprocating inertia force, so that crankshaft bears bending torsional load. Therefore, crankshaft requires sufficient strength and rigidity, shaft neck surface needs to be wear-resistant, uniform in work, and good in balance.

[0003] According to the "convenient to use's crankshaft drilling fixture (disclosed number: CN 212095352U;Application number: 202020548373.3) " of patent network publicizing, the above-mentioned application is optimized to the problem of "at present, most crankshafts are drilled through clamping and then drilled, and most existing crankshaft clamps are relatively cumbersome to operate, and most workers need to go through multiple steps to fix the crankshaft, which may reduce the work efficiency of workers", but the clamp in the above-mentioned application cannot adapt to different sizes of automobile crankshafts for effective fixing, and cannot adjust the horizontal height of the clamp after fixing according to different sizes of automobile crankshafts, so that the device cannot adapt to different sizes of automobile crankshafts when in use, and is inconvenient for workers to use. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of self-adapting flexible fixture for automobile crankshaft machining to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of self-adapting flexible fixture for automobile crankshaft machining, including base, the base top is provided with adjusting mechanism, the adjusting mechanism top is provided with clamping mechanism.

[0006] The adjusting mechanism includes adjusting assembly, transmission assembly and stabilizing assembly, the adjusting assembly is set on the top of base, the transmission assembly is set in adjusting assembly, and the stabilizing assembly is set on the front and back sides of transmission assembly.

[0007] The clamping mechanism includes moving assembly and clamping assembly, the moving assembly is set on the top of transmission assembly, and the clamping assembly is set on the top of moving assembly.

[0008] Preferably, the adjusting assembly comprises a fixed box fixedly connected to the top of the base, a double-shaft threaded rod rotatably connected in the fixed box, the double-shaft threaded rod being rotatably connected to the left side of the fixed box, a rotating disc fixedly connected to the left side of the double-shaft threaded rod, the rotating disc being rotatably connected to the top of the base, and a rocker fixedly connected to the left side of the rotating disc.

[0009] Preferably, the transmission assembly comprises a threaded cylinder threadedly connected to the left and right sides of the outer circle of the double-shaft threaded rod, convex rods fixedly connected to the front and back sides of the threaded cylinder, moving slide rods fixedly connected to the top of the convex rods, and the moving slide rods being slidably connected to the top of the fixed box.

[0010] Preferably, the stabilizing assembly comprises connecting fins fixedly connected to the outer sides of the convex rods, slide cylinders fixedly connected to the upper and lower sides of the connecting fins, fixed slide rods slidably connected to the inner circle of the slide cylinders, and the fixed slide rods being fixedly connected to the left and right sides of the fixed box.

[0011] Preferably, the moving assembly comprises a sliding base fixedly connected to the top of the moving slide rods, the sliding base being slidably connected to the top of the fixed box, slide rods slidably connected to the front and back sides of the sliding base, the slide rods being fixedly connected to the front and back sides of the top of the base, and a moving frame fixedly connected to the top of the sliding base.

[0012] Preferably, the clamping assembly comprises a conical clamping cylinder arranged in the moving frame, a lifting slide sleeve fixedly connected to the outer circle of the conical clamping cylinder, the lifting slide sleeve being slidably connected to the moving frame, and slide rails slidably connected to the outer circle of the lifting slide sleeve, the slide rails being fixedly connected to the moving frame.

[0013] Compared with the prior art, the self-adaptive flexible clamp for automobile crankshaft machining has the following beneficial effects:

[0014] 1. The self-adaptive flexible clamp for automobile crankshaft machining, through the adjusting mechanism, the staff only needs to shake the rocker to control the moving frames on the left and right sides to move inward synchronously to complete the clamping and fixing of the automobile crankshaft, the operation is simple and convenient for the staff to use, the stabilizing assembly increases the stability of the threaded cylinders on the left and right sides during the moving process, and the stability of the device when clamping the automobile crankshaft is improved.

[0015] 2、The adaptive flexible clamp for automobile crank machining, through the clamping mechanism, the taper clamping cylinder is internally tapered, the inner diameter gradually decreases from inside to outside, so that the device can stably clamp automobile cranks of different diameters when used, can be used with automobile cranks of different sizes when used, increases the adaptation range of the device when used, and the taper clamping cylinder is slidingly connected in the moving frame through the lifting sliding sleeve and the slide rail, when the taper clamping cylinders on the left and right sides clamp the automobile crank inward, the lifting sliding sleeve is extruded outward with the slide rail under stress, the friction force generated by extrusion between the lifting sliding sleeve and the slide rail fixes the horizontal height of the taper clamping cylinder in the moving frame, so that the horizontal height of the clamped automobile crank can be adjusted by the worker according to the size of the automobile crank when the device is used, further improving the adaptation of the device to automobile cranks of different sizes when used, and facilitating the worker to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor:

[0017] Figure 1 It is a front view of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 It is a structure sectional view of the adjusting mechanism part;

[0020] Figure 4 It is a structure sectional view of the adjusting assembly part;

[0021] Figure 5 It is a structure sectional view of the adjusting mechanism part;

[0022] Figure 6 It is a structure sectional view of the adjusting mechanism part;

[0023] In the figure: 1, adjusting mechanism; 11, adjusting assembly; 1101, fixed box; 1102, double-shaft threaded rod; 1103, rotating disc; 1104, rocker; 12, transmission assembly; 1201, threaded cylinder; 1202, convex rod; 1203, moving slide rod; 13, stabilizing assembly; 1301, connecting fin; 1302, sliding cylinder; 1303, fixed slide rod; 2, clamping mechanism; 21, moving assembly; 2101, sliding seat; 2102, slide bar; 2103, moving frame; 22, clamping assembly; 2201, conical clamping cylinder; 2202, lifting sliding sleeve; 2203, slide rail; 3, base. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0026] The present application provides a technical solution:

[0027] Embodiment one

[0028] In combination Figures 1 to 5 A self-adaptive flexible clamp for automobile crankshaft machining, comprising a base 3, the top of the base 3 is provided with an adjusting mechanism 1, and the top of the adjusting mechanism 1 is provided with a clamping mechanism 2.

[0029] The adjusting mechanism 1 comprises an adjusting assembly 11, a transmission assembly 12 and a stabilizing assembly 13, the adjusting assembly 11 is arranged on the top of the base 3, the transmission assembly 12 is arranged in the adjusting assembly 11, and the stabilizing assembly 13 is arranged on the front and rear sides of the transmission assembly 12.

[0030] The adjusting assembly 11 comprises a fixed box 1101 fixedly connected to the top of the base 3, a double-shaft threaded rod 1102 rotatably connected in the fixed box 1101, a rotating disc 1103 fixedly connected to the left side of the double-shaft threaded rod 1102, a rocker 1104 fixedly connected to the left side of the rotating disc 1103, the transmission assembly 12 comprises a threaded cylinder 1201 threadedly connected to the left and right sides of the outer circle of the double-shaft threaded rod 1102, protruding rods 1202 fixedly connected to the front and back sides of the threaded cylinder 1201, moving slide rods 1203 fixedly connected to the top of the protruding rods 1202, the moving slide rods 1203 slidingly connected to the top of the fixed box 1101, and the stabilizing assembly 13 comprises connecting fins 1301 fixedly connected to the outer sides of the protruding rods 1202, slide cylinders 1302 fixedly connected to the upper and lower sides of the connecting fins 1301, and fixed slide rods 1303 slidingly connected to the inner circles of the slide cylinders 1302, the fixed slide rods 1303 fixedly connected to the left and right sides in the fixed box 1101.

[0031] Further, the staff only needs to shake the rocker 1104 to control the synchronous inward movement of the moving frames 2103 on the left and right sides to complete the clamping and fixing of the automobile crankshaft, which is simple in operation and convenient for the staff to use. The arrangement of the stabilizing assembly 13 increases the stability of the threaded cylinders 1201 on the left and right sides during movement, thereby improving the stability of the device when clamping the automobile crankshaft.

[0032] Embodiment Two

[0033] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 , and on the basis of Embodiment One, it is further obtained that the clamping mechanism 2 comprises a moving assembly 21 and a clamping assembly 22, the moving assembly 21 is arranged on the top of the transmission assembly 12, and the clamping assembly 22 is arranged on the top of the moving assembly 21.

[0034] The moving assembly 21 comprises a sliding seat 2101 fixedly connected to the top of the moving slide rod 1203, the sliding seat 2101 slidingly connected to the top of the fixed box 1101, sliding rods 2102 slidingly connected in the front and back sides of the sliding seat 2101, the sliding rods 2102 fixedly connected to the front and back sides of the top of the base 3, a moving frame 2103 fixedly connected to the top of the sliding seat 2101, the clamping assembly 22 comprises a conical clamping cylinder 2201 arranged in the moving frame 2103, a lifting slide sleeve 2202 fixedly connected to the outer circle of the conical clamping cylinder 2201, the lifting slide sleeve 2202 slidingly connected to the moving frame 2103, and slide rails 2203 slidingly connected to the outer circle of the lifting slide sleeve 2202, the slide rails 2203 fixedly connected to the moving frame 2103.

[0035] Furthermore, the conical clamp 2201 has a conical interior with an inner diameter that gradually decreases from the inside to the outside. This allows the conical clamps on both sides to stably clamp automobile crankshafts of different diameters, making the device adaptable to different sizes and increasing its applicability. Simultaneously, the conical clamp 2201 is slidably connected to the movable frame 2103 via the lifting sleeve 2202 and the slide rail 2203. When the car crankshaft is clamped inward, the lifting sleeve 2202 is pressed outward against the slide rail 2203. The friction generated by the pressing between the lifting sleeve 2202 and the slide rail 2203 fixes the horizontal height of the conical clamp 2201 within the moving frame 2103. This allows the operator to adjust the horizontal height of the car crankshaft after clamping according to the specific size of the car crankshaft, further improving the adaptability of the device to different sizes of car crankshafts and making it easier for operators to use.

[0036] In actual operation, when this device is used to clamp the automobile crankshaft, the operator first places the crankshaft connecting rod inside the tapered clamps 2201 on both sides. Then, the operator cranks the rocker arm 1104. The rocker arm 1104 rotates the double-axis threaded rod 1102 via the turntable 1103. The rotation of the double-axis threaded rod 1102 causes the threaded cylinders 1201 on both sides to move inward synchronously. The inward movement of the threaded cylinders 1201 on both sides, through the convex rod 1202 and the moving slide rod 1203, causes the sliding blocks 2101 on both sides to move inward synchronously. The inward movement of the sliding blocks 2101, through the moving frame 2103, causes the tapered clamps 2201 to move inward. The tapered clamps 2201 on both sides then move inward and fit onto the outer sides of the left and right ends of the automobile crankshaft. Then stop shaking the rocker arm 1104 and simultaneously move the car crankshaft upward. At this time, the upward movement of the car crankshaft will drive the left and right conical clamps 2201 to move upward until the car crankshaft moves to the appropriate position. Then the operator continues to shake the rocker arm 1104. At this time, the left and right conical clamps 2201 continue to move inward and engage with the left and right sides of the car crankshaft until the left and right sides of the car crankshaft are completely engaged in the conical clamps 2201 and tightly fitted with the conical clamps 2201, so that the rocker arm 1104 can no longer be shaken. At this time, the lifting sleeve 2202 is subjected to force and cooperates with the slide rail 2203 to squeeze and generate friction to complete the positioning of the conical clamps 2201. At this time, the clamping and fixing of the car crankshaft is completed.

[0037] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprise," "comprises," and "comprising," or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, unless otherwise indicated herein, the terms "first," "second," "third," etc., are used herein merely as labels, and are not intended to impose ordinal import.

Claims

1. An adaptive flexible fixture for machining automotive crankshafts, comprising a base (3), characterized in that: The base (3) is provided with an adjustment mechanism (1) at its top, and the adjustment mechanism (1) is provided with a clamping mechanism (2) at its top. The adjustment mechanism (1) includes an adjustment component (11), a transmission component (12) and a stabilizing component (13). The adjustment component (11) is located on the top of the base (3), the transmission component (12) is located inside the adjustment component (11), and the stabilizing component (13) is located on the front and rear sides of the transmission component (12). The clamping mechanism (2) includes a moving component (21) and a clamping component (22). The moving component (21) is disposed on the top of the transmission component (12), and the clamping component (22) is disposed on the top of the moving component (21).

2. The adaptive flexible fixture for machining automotive crankshafts according to claim 1, characterized in that: The adjustment assembly (11) includes a fixed box (1101), which is fixedly connected to the top of the base (3), and a double-axis threaded rod (1102) is rotatably connected inside the fixed box (1101).

3. The adaptive flexible fixture for machining automotive crankshafts according to claim 2, characterized in that: The dual-axis threaded rod (1102) is rotatably connected to the left side of the fixed box (1101). A turntable (1103) is fixedly connected to the left side of the dual-axis threaded rod (1102). The turntable (1103) is rotatably connected to the top of the base (3). A rocker arm (1104) is fixedly connected to the left side of the turntable (1103).

4. The adaptive flexible fixture for machining automotive crankshafts according to claim 1, characterized in that: The transmission assembly (12) includes a threaded cylinder (1201), which is threaded to the left and right sides of the outer ring of the double-axis threaded rod (1102). The threaded cylinder (1201) is fixedly connected to the front and rear sides of the threaded cylinder (1202).

5. The adaptive flexible fixture for machining automotive crankshafts according to claim 4, characterized in that: The top of the protruding rod (1202) is fixedly connected to a movable slide rod (1203), which is slidably connected to the top of the fixed box (1101).

6. The adaptive flexible fixture for machining automotive crankshafts according to claim 1, characterized in that: The stabilizing component (13) includes a connecting fin (1301), which is fixedly connected to the outside of the protruding rod (1202). Sliding cylinders (1302) are fixedly connected to the upper and lower sides of the connecting fin (1301). A fixed sliding rod (1303) is slidably connected to the inner ring of the sliding cylinder (1302). The fixed sliding rod (1303) is fixedly connected to the left and right sides inside the fixed box (1101).

7. The adaptive flexible fixture for machining automotive crankshafts according to claim 1, characterized in that: The moving component (21) includes a slide (2101), which is fixedly connected to the top of the moving slide rod (1203) and slidably connected to the top of the fixed box (1101).

8. The adaptive flexible fixture for machining automotive crankshafts according to claim 7, characterized in that: The slide block (2101) is slidably connected to the front and rear sides of the slide bar (2102), the slide bar (2102) is fixedly connected to the front and rear sides of the top of the base (3), and the top of the slide block (2101) is fixedly connected to the movable frame (2103).

9. The adaptive flexible fixture for machining automotive crankshafts according to claim 1, characterized in that: The clamping assembly (22) includes a conical clamp (2201), which is disposed inside the movable frame (2103), and a lifting sleeve (2202) is fixedly connected to the outer ring of the conical clamp (2201).

10. An adaptive flexible fixture for machining automotive crankshafts according to claim 9, characterized in that: The lifting sleeve (2202) is slidably connected to the movable frame (2103), and the outer ring of the lifting sleeve (2202) is slidably connected to the slide rail (2203), which is fixedly connected to the movable frame (2103).

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