Crankshaft clamp

Abstract

The utility model belongs to the technical field of crankshaft production and machining, and particularly relates to a crankshaft clamp which comprises a base, a through groove penetrating through the left end and the right end of the base is formed in the base, and two oppositely-arranged supporting blocks are arranged in the through groove. The mounting seats comprise mounting plates, two limiting plates are arranged on the lower portions of the mounting plates, the two supporting blocks are located between the two limiting plates, and clamp assemblies for supporting the crankshafts are mounted on the upper portions of the mounting plates; the telescopic mechanism is connected between the ends of the two supporting blocks and exposed out of the base so as to adjust the positions of the two supporting blocks in the through groove, so that the two supporting blocks abut against the limiting plates on the two sides respectively, and sliding of the installation base is limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of crankshaft production and processing, and specifically relates to a crankshaft clamp. Background Art

[0002] In the crankshaft processing production line of the engine factory and the corresponding inspection room, there are currently two main ways to perform precision inspections on the roughness and contour of the crankshaft: one is to support the main journal with a double V-shaped fixed support, assisted by a matching movable limit block. Different types of crankshafts have different lengths, so different double V-shaped supports need to be made; the other is a rotary center type, which clamps the crankshaft with a double center and clamps it with a fastening clamping block. The motor drives the crankshaft to rotate for inspection. When inspecting crankshafts of different lengths, it is necessary to replace the precision center or move the bulky center base on the marble platform to achieve it.

[0003] However, such a crankshaft clamp has certain functional defects: the crankshaft clamp made with double V-shaped fixation has poor flexibility, the axial lengths of crankshafts of different models are different, and the axis spacing is also different. Each model requires a crankshaft clamp with suitable spacing; the rotary center crankshaft clamp has a limited telescopic range and poor flexibility, and cannot match the clamping of crankshafts of different lengths. Frequent replacement of the center can easily lead to center wear. For this reason, an improved crankshaft clamp is designed. Utility Model Content

[0004] In view of the above-mentioned deficiencies existing in the prior art, the utility model provides a crankshaft clamp to solve the above-mentioned problems in the background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A crankshaft clamp comprises a base, the base is provided with a through slot penetrating the left and right ends of the base, and the through slot is provided with two supporting blocks arranged opposite to each other;

[0007] A plurality of mounting seats, wherein the mounting seats include a mounting plate, two limit plates are provided at the lower part of the mounting plate, the two support blocks are located between the two limit plates, and a clamp assembly for supporting the crankshaft is installed at the upper part of the mounting plate;

[0008] The telescopic mechanism is connected between the ends of the two support blocks and exposed on the base to adjust the positions of the two support blocks in the through grooves, so that the two support blocks are respectively pressed against the limit plates on both sides to limit the sliding of the mounting seat.

[0009] By adopting the above-mentioned structural design, the crankshaft clamp includes a base and a plurality of clamp assemblies for supporting the crankshaft. By improving the design of the base structure and designing two support blocks, a telescopic mechanism and a mounting seat, the relative position of the clamp assembly can be adjusted to adapt to crankshafts of different lengths and different axis spacings. The specific mounting seat has a mounting plate, and the mounting plate is arranged on the upper surface of the support block. Two limit plates are arranged at the bottom of the mounting plate, and the limit plates are located between the inner wall of the through groove and the outer wall of the support block. The distance between the two support blocks is adjusted by the telescopic mechanism so that the two support blocks move away from or close to each other, so that the support blocks can be pressed against the limit plates to limit the sliding of the limit plates, thereby limiting the sliding of the mounting seat, so that the clamp assembly is relatively fixedly connected to the base. The support blocks and the limit plates are disengaged by the telescopic mechanism, and the mounting seat can be slid to adjust the distance between the clamp assemblies to adapt to crankshafts of different lengths and different axis spacings.

[0010] Furthermore, a rubber pad with a rough surface is provided on one side of the limiting plate close to the supporting block to increase the friction between the limiting plate and the supporting block.

[0011] Furthermore, the telescopic mechanism comprises:

[0012] A connecting rod, the connecting rod is fixedly connected to the end of the supporting block, and a sleeve is vertically connected to the rod body of the connecting rod;

[0013] A rotating threaded sleeve, wherein two ends of the rotating threaded sleeve are respectively threadedly connected with a forward threaded rod and a directional threaded rod, and the forward threaded rod and the directional threaded rod are rotatably connected in the inner cavity of the sleeve.

[0014] By adopting the above-mentioned structural design, the principle of the telescopic mechanism to adjust the distance between the two support blocks is to hold the rotating threaded sleeve and rotate it, so that the forward threaded rod and the directional threaded rod on both sides move away from or closer to each other, thereby adjusting the total length of the forward threaded rod and the directional threaded rod. When their lengths increase, the forward threaded rod and the directional threaded rod respectively move against the sleeves on both sides, and then drive the support block to move through the connecting rod, so that the support block approaches and presses against the limit plate. A rubber pad is arranged on the surface of the limit plate, which can play a role in buffering and increasing friction, thereby limiting the sliding of the limit plate.

[0015] Further, the clamp assembly comprises:

[0016] A slide seat, the slide seat is fixedly connected to the mounting plate, two sliding blocks are slidably arranged on the slide seat, trapezoidal blocks are fixedly installed on the sliding blocks, and the oblique sides of the two trapezoidal blocks face upwards;

[0017] A driving assembly is connected to the slide to drive the slide to move.

[0018] Furthermore, the driving assembly comprises:

[0019] A bearing seat, which is fixedly arranged on the slide seat and is located between the two slide seats;

[0020] A screw rod, one end of which is mounted on a bearing seat, a screw rod nut is connected to the screw rod, the screw rod nut is fixed inside a sliding seat, and a knob is provided at the other end of the screw rod.

[0021] Furthermore, there are multiple mounting seats and fixture assemblies.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. The crankshaft clamp comprises a base and a plurality of clamp assemblies for supporting the crankshaft. The relative position of the clamp assembly is adjusted to adapt to crankshafts of different lengths and different axis spacings by improving the design of the base structure and designing two support blocks, a telescopic mechanism and a mounting seat. The specific mounting seat comprises a mounting plate, which is arranged on the upper surface of the support block. Two limit plates are arranged at the bottom of the mounting plate. The limit plates are located between the inner wall of the through groove and the outer wall of the support block. The distance between the two support blocks is adjusted by the telescopic mechanism so that the two support blocks move away from or approach each other, so that the support blocks can press against the limit plates to limit the sliding of the limit plates, thereby limiting the sliding of the mounting seat, so that the clamp assembly is relatively fixedly connected to the base. The support blocks and the limit plates are disengaged by the telescopic mechanism, so that the mounting seat can be slid to adjust the distance between the clamp assemblies to adapt to crankshafts of different lengths and different axis spacings.

[0024] 2. The principle of the telescopic mechanism to adjust the distance between the two support blocks is to hold the rotating threaded sleeve and rotate it, so that the forward threaded rod and the directional threaded rod on both sides move away from or closer to each other, thereby adjusting the total length of the forward threaded rod and the directional threaded rod. When their lengths increase, the forward threaded rod and the directional threaded rod respectively move against the sleeves on both sides, and then drive the support block to move through the connecting rod, so that the support block approaches and presses against the limit plate. A rubber pad is arranged on the surface of the limit plate, which can play a role in buffering and increasing friction, thereby limiting the sliding of the limit plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of an embodiment of a crankshaft clamp of the utility model (viewing angle 1);

[0026] Figure 2 This is a structural schematic diagram of an embodiment of a crankshaft clamp of the utility model (viewing angle 2);

[0027] Figure 3 This is a three-dimensional structural schematic diagram of a clamp assembly in an embodiment of a crankshaft clamp of the utility model;

[0028] Figure 4 This is a three-dimensional structural schematic diagram of a base in an embodiment of a crankshaft clamp of the utility model;

[0029] Figure 5 It is a three-dimensional structural schematic diagram of a telescopic mechanism in an embodiment of a crankshaft clamp of the utility model;

[0030] The reference numerals in the drawings of the specification include:

[0031] A base (1), a through slot (11), a support block (2), a telescopic mechanism (3), a connecting rod (31), a sleeve (32), a forward threaded rod (33), a rotating threaded sleeve (34), a directional threaded rod (35), a mounting seat (4), a mounting plate (41), a limit plate (42), a rubber pad (43), a clamp assembly (5), a sliding seat (51), a sliding slot (511), a slider (52), a trapezoidal block (53), a screw rod (54), a screw rod nut (55), a knob (56), and a bearing seat (57). DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0034] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Embodiment 1:

[0037] like Figure 1-5 As shown, the utility model. Specifically, a crankshaft clamp comprises a base 1, a through slot 11 penetrating the left and right ends of the base 1 is provided on the base 1, two support blocks 2 arranged opposite to each other are arranged in the through slot 11; a plurality of mounting seats 4, the mounting seats 4 comprising a mounting plate 41, two limit plates 42 are arranged at the lower part of the mounting plate 41, the two support blocks 2 are located between the two limit plates 42, and a clamp assembly 5 supporting the crankshaft is installed at the upper part of the mounting plate 41; a telescopic mechanism 3, the telescopic mechanism 3 is connected between the ends of the two support blocks 2, and is exposed to the base 1 to adjust the positions of the two support blocks 2 in the through slot 11, so that the two support blocks 2 are respectively pressed against the limit plates 42 on both sides to limit the sliding of the mounting seats 4. By adopting the above-mentioned structural design, the crankshaft clamp includes a base 1 and a plurality of clamp assemblies 5 for supporting the crankshaft. By improving the design of the base 1 structure and designing two support blocks 2, a telescopic mechanism 3 and a mounting seat 4, the relative position of the clamp assembly 5 can be adjusted to adapt to crankshafts of different lengths and different axis spacings. The specific mounting seat 4 has a mounting plate 41, and the mounting plate 41 is arranged on the upper surface of the support block 2. Two limit plates 42 are arranged at the bottom of the mounting plate 41, and the limit plates 42 are located between the inner wall of the through groove 11 and the outer wall of the support block 2. The distance between the two support blocks 2 is adjusted by the telescopic mechanism 3, so that the two support blocks 2 move away from or close to each other, so that the support block 2 can be pressed against the limit plate 42 to limit the sliding of the limit plate 42, thereby limiting the sliding of the mounting seat 4, so that the clamp assembly 5 is relatively fixedly connected to the base 1, and the support block 2 and the limit plate 42 are disengaged by the telescopic mechanism 3, so that the mounting seat 4 can be slid to adjust the distance between the clamp assemblies 5 to adapt to crankshafts of different lengths and different axis spacings. A rubber pad 43 with a rough surface is provided on one side of the limiting plate 42 close to the supporting block 2 to increase the friction between the limiting plate 42 and the supporting block 2 .

[0038] Among them, the telescopic mechanism 3 includes: a connecting rod 31, the connecting rod 31 is fixedly connected to the end of the support block 2, and a sleeve 32 is vertically connected to the rod body of the connecting rod 31; a rotating threaded sleeve 34, and the two ends of the rotating threaded sleeve 34 are respectively threadedly connected with a forward threaded rod 33 and a direction threaded rod 35, and the forward threaded rod 33 and the direction threaded rod 35 are rotatably connected in the inner cavity of the sleeve 32. By adopting the above-mentioned structural design, the principle of the telescopic mechanism 3 adjusting the distance between the two support blocks 2 is to hold the rotating threaded sleeve 34 and rotate it, so that the forward threaded rod 33 and the directional threaded rod 35 on both sides move away from or close to each other, thereby adjusting the total length of the forward threaded rod 33 and the directional threaded rod 35. When their lengths increase, the forward threaded rod 33 and the directional threaded rod 35 respectively move against the sleeves 32 on both sides, and then drive the support block 2 to move through the connecting rod 31, so that the support block 2 is close to and pressed against the limit plate 42. The surface of the limit plate 42 is provided with a rubber pad 43, which can play a role in buffering and increasing friction, thereby limiting the sliding of the limit plate 42.

[0039] The fixture assembly 5 includes a slide 51, the slide 51 is fixedly connected to the mounting plate 41, two sliders 52 are slidably arranged on the slide 51, and a trapezoidal block 53 is fixedly mounted on the slider 52, and the oblique sides of the two trapezoidal blocks 53 face upward;

[0040] Among them, the driving assembly is connected to the slide 51 to drive the slide 51 to move. The driving assembly includes: a bearing seat 57, the bearing seat 57 is fixedly arranged on the slide 51 and is located between the two slides 51; a screw 54, one end of the screw 54 is installed on the bearing seat 57, a screw nut 55 is connected to the screw 54, the screw nut 55 is fixed inside the slide 51, and the other end of the screw 54 is provided with a knob 56. The clamp assembly 5 rotates the screw 54 through the knob 56, and the screw nut 55 on the screw 54 drives the slide 51 to move, so that the two trapezoidal blocks 53 are close to each other to form a V-shaped clamping cavity, and the crankshaft is placed between the two trapezoidal blocks 53. The number of the mounting seat 4 and the clamp assembly 5 is multiple.

[0041] Working principle: The mounting seat 4 has a mounting plate 41, and the mounting plate 41 is arranged on the upper surface of the support block 2. Two limit plates 42 are arranged at the bottom of the mounting plate 41, and the limit plates 42 are located between the inner wall of the through groove 11 and the outer wall of the support block 2. The distance between the two support blocks 2 is adjusted by the telescopic mechanism 3, so that the two support blocks 2 can move away from or close to each other, so that the support blocks 2 can be pressed against the limit plates 42 to limit the sliding of the limit plates 42, thereby limiting the sliding of the mounting seat 4, so that the clamp assembly 5 is relatively fixedly connected to the base 1. The support block 2 and the limit plates 42 are disengaged by the telescopic mechanism 3, and the mounting seat 4 can be slid to adjust the distance between the clamp assemblies 5 to adapt to crankshafts of different lengths and different axis spacings. The principle of the telescopic mechanism 3 adjusting the distance between the two support blocks 2 is to hold the rotating threaded sleeve 34 and rotate it, so that the forward threaded rod 33 and the directional threaded rod 35 on both sides move away from or close to each other, thereby adjusting the total length of the forward threaded rod 33 and the directional threaded rod 35. When their lengths increase, the forward threaded rod 33 and the directional threaded rod 35 respectively move against the sleeves 32 on both sides, and then drive the support block 2 to move through the connecting rod 31, so that the support block 2 is close to and pressed against the limit plate 42. A rubber pad 43 is arranged on the surface of the limit plate 42, which can play a role in buffering and increasing friction, thereby limiting the sliding of the limit plate 42.

[0042] The above are only embodiments of the utility model, and the circuits, electronic components and modules involved are all prior art, which can be fully implemented by those skilled in the art. It is needless to say that the content protected by this application does not involve improvements to software and methods. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the prior art in the field, and have the ability to apply conventional experimental means before the date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A crankshaft clamp, characterized in that: The invention comprises a base (1), wherein the base (1) is provided with a through slot (11) penetrating the left and right ends of the base (1), and two supporting blocks (2) arranged opposite to each other are arranged in the through slot (11); A plurality of mounting seats (4), wherein the mounting seats (4) include a mounting plate (41), two limit plates (42) are provided at the bottom of the mounting plate (41), the two support blocks (2) are located between the two limit plates (42), and a clamp assembly (5) for supporting the crankshaft is installed at the top of the mounting plate (41); A telescopic mechanism (3) is connected between the ends of the two support blocks (2) and exposed on the base (1) to adjust the positions of the two support blocks (2) in the through grooves (11), so that the two support blocks (2) respectively press against the limit plates (42) on both sides to limit the sliding of the mounting seat (4).

2. A crankshaft clamp according to claim 1, characterized in that: A rubber pad (43) with a rough surface is provided on one side of the limiting plate (42) close to the supporting block (2) to increase the friction between the limiting plate (42) and the supporting block (2).

3. A crankshaft clamp according to claim 2, characterized in that: The telescopic mechanism (3) comprises: A connecting rod (31), the connecting rod (31) is fixedly connected to the end of the supporting block (2), and a sleeve (32) is vertically connected to the rod body of the connecting rod (31); A rotating threaded sleeve (34), wherein two ends of the rotating threaded sleeve (34) are respectively threadedly connected with a forward threaded rod (33) and a directional threaded rod (35), and the forward threaded rod (33) and the directional threaded rod (35) are rotatably connected in the inner cavity of the sleeve (32).

4. A crankshaft clamp according to claim 2, characterized in that: The clamp assembly (5) comprises: A slide seat (51), the slide seat (51) is fixedly connected to the mounting plate (41), two sliding blocks (52) are slidably arranged on the slide seat (51), a trapezoidal block (53) is fixedly mounted on the sliding block (52), and the oblique sides of the two trapezoidal blocks (53) face upwards; A driving assembly is connected to the slide seat (51) to drive the slide seat (51) to move.

5. A crankshaft clamp as claimed in claim 4, characterized in that: The driving assembly comprises: A bearing seat (57), wherein the bearing seat (57) is fixedly arranged on the slide seat (51) and is located between the two slide seats (51); A screw rod (54), one end of which is mounted on a bearing seat (57), a screw rod nut (55) is connected to the screw rod (54), the screw rod nut (55) is fixed inside the slide seat (51), and a knob (56) is provided at the other end of the screw rod (54).

6. A crankshaft clamp according to claim 1, characterized in that: The number of the mounting seats (4) and the clamp assemblies (5) is three.

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