CN211317123U

CN211317123U - Clamp for detecting engine crankshaft

Info

Publication number: CN211317123U
Application number: CN201922492287.5U
Authority: CN
Inventors: 乔杰; 董斌; 丁大凯; 王月文
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-21
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a fixture for detecting an engine crankshaft, which comprises a bottom plate, wherein a chute is arranged on the bottom plate, and the length direction of the chute is consistent with the axial direction of the crankshaft; the sliding groove is sequentially connected with a first V-shaped block supporting device, an angular positioning device, an axial positioning device and a second V-shaped block supporting device in a sliding mode, a top pressing device with an adjustable position is arranged beside the angular positioning device, and an axial pressing device is arranged on one side, away from the axial positioning device, of the second V-shaped block supporting device; the positioning or supporting heights of the first V-shaped block supporting device, the angular positioning device, the axial positioning device, the second V-shaped block supporting device, the top pressing device and the axial pressing device are all adjustable. The utility model discloses an anchor clamps for engine crankshaft detects can be applicable to the bent axle of different models and detect, and the material resources of using manpower sparingly have improved detection efficiency.

Description

Clamp for detecting engine crankshaft

Technical Field

The utility model relates to an automobile inspection technical field, in particular to an anchor clamps for engine crankshaft detects.

Background

The crankshaft is the main rotating mechanism of the engine and converts the up-and-down reciprocating motion of the piston into self rotation. The rotation of the crankshaft is the power source of the engine and also the power source of the whole mechanical system. The crankshaft is used as an important component of an engine, and the requirement on the dimensional accuracy of the crankshaft is high, so that the dimensional accuracy detection of the crankshaft is very important in the machining and production process of the crankshaft.

When the size precision of the crankshaft is detected, the crankshaft needs to be clamped and positioned, so that the position of the crankshaft can be kept stable and unchanged on a measuring platform, and the influence on the precision of final size measurement is avoided. When inspecting the full-size of bent axle at present, the bent axle of different specification models need use corresponding anchor clamps, and the compatibility of anchor clamps is poor, changes the extravagant manpower and materials of anchor clamps, has reduced detection efficiency.

Therefore, how to provide a anchor clamps for engine crankshaft detects makes anchor clamps can be applicable to the crankshaft detection of different models, and the material resources of using manpower sparingly improve detection efficiency, becomes the technical problem that technical staff in the field had a urgent need to solve.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an anchor clamps for engine crankshaft detects makes anchor clamps can be applicable to the bent axle of different models and detects, uses manpower sparingly material resources, improves detection efficiency.

In order to achieve the above object, the utility model provides a following technical scheme:

a clamp for detecting an engine crankshaft comprises a bottom plate, wherein a sliding groove is formed in the bottom plate, and the length direction of the sliding groove is consistent with the axial direction of the crankshaft; the sliding groove is sequentially connected with a first V-shaped block supporting device, an angular positioning device, an axial positioning device and a second V-shaped block supporting device in a sliding mode, a top pressing device with an adjustable position is arranged beside the angular positioning device, and an axial pressing device is arranged on one side, away from the axial positioning device, of the second V-shaped block supporting device; the positioning or supporting heights of the first V-shaped block supporting device, the angular positioning device, the axial positioning device, the second V-shaped block supporting device, the top pressing device and the axial pressing device are all adjustable.

Preferably, the bottom plate is provided with two parallel sliding grooves, and the bottom plate is provided with a bolt mounting hole and a positioning pin hole.

Preferably, first V type piece strutting arrangement and second V type piece strutting arrangement all include first adjustable bottom plate, first support post and V type piece, first adjustable bottom plate upper surface with the bottom fixed connection of first support post, first support post upper end sliding connection has the V type piece, first support post with the V type piece is fixed a position through first fastening bolt.

Preferably, be provided with two first rectangular through-holes that extend along the direction of height on the side of V type piece, on the first support column with the position that first rectangular through-hole corresponds is provided with first screw, a fastening bolt passes first rectangular through-hole is connected in the first screw.

Preferably, the support end of the V-shaped block of the first V-shaped block support device comprises two V-shaped support plates arranged in parallel, and a detection gap is arranged between the two V-shaped support plates.

Preferably, the angular positioning device comprises a second adjustable bottom plate, a second supporting upright is fixedly connected to the upper surface of the second adjustable bottom plate, an adjustable supporting upright is slidably connected to the second supporting upright, the adjustable supporting upright is positioned on the second supporting upright through a second fastening bolt, and a supporting block is arranged at the upper end of the adjustable supporting upright.

Preferably, the side of second support post is provided with the height adjustment groove, adjustable support post sliding connection be in the height adjustment inslot, the side of adjustable support post is provided with the rectangular through-hole of second that extends along the direction of height, the tank bottom surface in the height adjustment inslot with the position that the rectangular through-hole of second corresponds is provided with the second screw, second fastening bolt passes the rectangular through-hole of second is connected in the second screw.

Preferably, a height adjusting bolt is arranged on the bottom end face of the adjustable supporting upright post.

Preferably, the axial positioning device comprises a third adjustable bottom plate, a third supporting upright is fixedly connected to the upper surface of the third adjustable bottom plate, an axial positioning block is connected to the third supporting upright, and the axial positioning block is used for axially positioning the positioning surface of the crankshaft in a contact manner.

Preferably, the top pressing device comprises a fourth adjustable bottom plate, a fourth supporting upright is fixedly connected to the upper surface of the fourth adjustable bottom plate, and a first pressing mechanism is arranged at the top end of the fourth supporting upright.

Preferably, the first pressing mechanism comprises a first pressing plate which is horizontally arranged, a first long through groove with the length direction perpendicular to the axis of the crankshaft is formed in the first pressing plate, a first pressing head is arranged at one end, close to the crankshaft, of the first pressing plate, and a first adjusting screw rod is connected in the first long through groove in a sliding mode; one end threaded connection of first adjusting screw rod is in the top of fourth support post, and the other end passes behind the first long logical groove with first manual knob threaded connection, the cover is equipped with first spring on the first adjusting screw rod, first spring sets up first clamp plate with between the fourth support post.

Preferably, the first pressing mechanism further comprises a first limit screw, one end of the first limit screw is in threaded connection with the top end of the fourth support upright, and the other end of the first limit screw penetrates through the first long through groove and then is connected with a nut.

Preferably, the axial pressing device comprises a second pressing plate which is vertically arranged, a second long through groove which is vertically arranged in the length direction is formed in the second pressing plate, a second pressing head is arranged on one side, close to the crankshaft, of the second pressing plate, and a second adjusting screw rod is connected in the second long through groove in a sliding mode; one end of the second adjusting screw is in threaded connection with the side face of the first supporting upright of the second V-shaped block supporting device, the other end of the second adjusting screw penetrates through the second long through groove and then is in threaded connection with the second manual knob, a second spring is sleeved on the second adjusting screw and arranged between the second pressing plate and the first supporting upright of the second V-shaped block supporting device.

Preferably, the axial pressing device further comprises a second limiting screw, one end of the second limiting screw is in threaded connection with the side face of the first supporting upright of the second V-shaped block supporting device, and the other end of the second limiting screw penetrates through the second long through groove and then is connected with a nut.

Preferably, two third long through grooves which are arranged in parallel are arranged on the fourth adjustable bottom plate, the length direction of each third long through groove is parallel to the axis direction of the crankshaft, and the fourth adjustable bottom plate is connected to the bottom plate through bolts penetrating through the third long through grooves.

According to the technical scheme, the fixture for detecting the engine crankshaft provided by the utility model has the advantages that the positioning and pressing devices are slidably connected to the sliding groove, so that the positions of the positioning and pressing devices can be adjusted according to the specific structures of the crankshafts with different specifications; through all setting location, strutting arrangement to location or support height-adjustable's structure, can realize the regulation of the whole height of anchor clamps, axial bracing position adjustment, the regulation of angular positioning, the regulation of the dynamics of compressing tightly to make anchor clamps can realize carrying out the clamping to the bent axle of multiple different specification models and detect, improved the compatibility and the commonality of anchor clamps. The crankshaft for detecting different specifications and models does not need to be replaced by the clamp, so that manpower and material resources are saved, the clamp replacement time is saved, and the detection efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an angle of a clamp for detecting an engine crankshaft according to an embodiment of the present invention;

fig. 2 is a schematic view of a use state of another angle of the fixture for engine crankshaft detection provided in the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a clamp for detecting an engine crankshaft according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a bottom plate according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a first V-shaped block supporting device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an angular positioning device according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a top pressing device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an axial positioning device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a second V-shaped block supporting device according to an embodiment of the present invention.

Detailed Description

The utility model discloses an anchor clamps for engine crankshaft detects makes the bent axle that anchor clamps can be applicable to different models detect, uses manpower sparingly material resources, improves detection efficiency.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 9, the utility model discloses a clamp for engine crankshaft detection, including bottom plate 1, first V type piece strutting arrangement 2, angular positioning device 3, axial positioning device 5 and second V type piece strutting arrangement 6.

Wherein the base plate 1 provides support for the various devices on the jig.

The bottom plate 1 is provided with a sliding chute 11, and the sliding chute 11 is sequentially connected with a first V-shaped block supporting device 2, an angular positioning device 3, an axial positioning device 5 and a second V-shaped block supporting device 6 in a sliding manner. The first V-shaped block supporting device 2 and the second V-shaped block supporting device 6 are used for supporting main journals at two end positions of a crankshaft 8.

A top pressing device 4 with an adjustable position is arranged beside the angular positioning device 3, the angular positioning device 3 is used for supporting a balance block on the crankshaft 8, the top pressing device 4 is used for pressing the crankshaft 8 from top to bottom, and the pressing position is a non-detection part, such as a balance structure. The angular positioning device 3 is matched with the top pressing device 4 for use, so that the crankshaft 8 is prevented from rotating along the axis.

In order to prevent the crankshaft 8 from being displaced in the axial direction, the bottom plate 1 is provided with an axial positioning device 5, and one side of the second V-shaped block supporting device 6 away from the axial positioning device 5 is provided with an axial pressing device 7. Axial positioner 5 prevents that bent axle 8 from moving to the left side, and axial closing device 7 prevents that bent axle 8 from moving to the right side, and axial positioner 5 and axial closing device 7 cooperate the use, effectively prevent that bent axle 8 from taking place axial displacement. The left and right sides are described above with respect to the orientation of fig. 1.

In order to adapt to the detection of crankshafts 8 with different specifications and sizes, the length direction of the sliding chute 11 is consistent with the axial direction of the crankshaft 8, so that the position of each positioning device is conveniently adjusted. The supporting or positioning height of the first V-shaped block supporting device 2, the angular positioning device 3, the axial positioning device 5, the second V-shaped block supporting device 6, the top pressing device 4 and the axial pressing device 7 is adjustable, the application range is wide, and therefore crankshafts 8 of different specifications and sizes can be better positioned.

The utility model discloses an anchor clamps for engine crankshaft detects, through with each location, closing device sliding connection on spout 11, make each location, closing device's position all can carry out the position adjustment according to the bent axle 8 concrete structure of different specifications; through all setting location, strutting arrangement to location or support height-adjustable's structure, can realize the regulation of the whole height of anchor clamps, axial bracing position adjustment, the regulation of angular positioning, the regulation of the dynamics of compressing tightly to make anchor clamps can realize carrying out the clamping to the bent axle 8 of multiple different specification models and detect, improved the compatibility and the commonality of anchor clamps. The crankshaft 8 for detecting different specifications and models does not need to be replaced by a clamp, so that manpower and material resources are saved, the clamp replacement time is saved, and the detection efficiency is improved.

As shown in fig. 4, the bottom plate 1 is provided with two parallel sliding grooves 11, and the longitudinal direction of the sliding grooves 11 is parallel to the axial direction of the crankshaft 8. The bottom plate 1 is provided with bolt mounting holes 13 and positioning pin holes 14. When the clamp is installed on a three-coordinate table top, the bottom plate 1 is positioned through the positioning pin connected in the positioning pin hole 14, and then the bottom plate 1 is fixed on the three-coordinate table top through the bolt penetrating through the bolt installation hole 13.

Specifically, as shown in fig. 5, each of the first V-block supporting device 2 and the second V-block supporting device 6 includes a first adjustable bottom plate 21, a first supporting upright 22 and a V-block 23. The upper surface of the first adjustable bottom plate 21 is fixedly connected with the bottom end of the first supporting upright column 22, the upper end of the first supporting upright column 22 is slidably connected with a V-shaped block 23, and the first supporting upright column 22 and the V-shaped block 23 are positioned through a first fastening bolt 24. It should be understood that the V shape in the V-shaped block 23 does not refer to the overall shape of the plate, but refers to the V-shaped port provided on the V-shaped block 23 for supporting. To facilitate placement of the crankshaft 8, the V-shaped port is disposed at the top end of the V-shaped block 23.

In a specific embodiment, two first elongated through holes extending in the height direction are formed in the side surface of the V-shaped block 23, a first screw hole is formed in a position of the first support pillar 22 corresponding to the first elongated through holes, and the first fastening bolt 24 passes through the first elongated through hole and is connected in the first screw hole, so that the V-shaped block 23 is locked and positioned. The first adjustable bottom plate 21 is fixedly connected with the first supporting upright 22 through bolts. The height of the V-shaped opening in the V-shaped block 23 is adjusted through the first strip through hole in the V-shaped block 23, and after the height is adjusted to a proper height, the V-shaped block 23 is locked and positioned through the first fastening bolt 24. The above-mentioned extending in the height direction means that the length direction of the first elongated through hole is set in the height direction.

As shown in fig. 5, in order to prevent the protrusion of the nut end of the first fastening bolt 24 on the side surface of the V-block 23 from affecting the detection, the first elongated through hole is a stepped hole, the nut end of the first fastening bolt 24 is sunk in the stepped hole, and the pressing surface of the nut end of the first fastening bolt 24 is pressed against the stepped surface of the stepped hole.

In a specific embodiment, the support end of the V-block 23 of the first V-block support device 2 comprises two parallel V-shaped support plates with a detection gap therebetween. The two V-shaped supporting plates and the V-shaped block 23 are of an integral structure. The supporting ends of the V-shaped blocks 23 adopt an interval supporting structure, so that the supporting surface is increased, indentation is prevented from being generated on the main journal of the crankshaft 8, a gap is reserved between the V-shaped supporting plates, the fact that needle insertion is convenient when a three-coordinate measuring machine is adopted for detecting the main journal is guaranteed, a measurable area is increased, measurement of all sizes can be completed by one-time clamping, measuring errors caused by multiple times of clamping are reduced, and accuracy and precision of measuring results are improved.

Further, the angular positioning device 3 includes a second adjustable bottom plate 31, a second support column 34 is fixedly connected to the upper surface of the second adjustable bottom plate 31, an adjustable support column 35 is slidably connected to the second support column 34, the adjustable support column 35 is positioned on the second support column 34 through a second fastening bolt 33, and a support block 36 is arranged at the upper end of the adjustable support column 35. The second adjustable bottom plate 31 is fixedly connected with the second support upright post 34 through a bolt, a groove is formed in the top end of the adjustable support upright post 35, and one end of the support block 36 is placed in the groove and is fixedly connected to the adjustable support upright post 35 through a fastening pin. The height of the supporting block 36 is adjusted by adjusting the position of the adjustable supporting column 35 on the second supporting column 34, so that the height of the whole angular positioning device 3 is adjusted.

Specifically, the side of the second support column 34 is provided with a height adjustment slot, and the adjustable support column 35 is slidably connected in the height adjustment slot. As shown in fig. 6, the height adjustment groove is a through groove which is provided on the side surface of the second support pillar 34 and is open at the upper and lower sides, the lower end of the height adjustment groove is not in contact with the second adjustable base plate 31, so that a height adjustment bolt 32 is provided on the bottom end surface of the adjustable support pillar 35, the threaded end of the height adjustment bolt 32 is in threaded connection with the bottom end surface of the adjustable support pillar 35, and the head end of the height adjustment bolt 32 is placed on the upper surface of the second adjustable base plate 31. When the angular positioning device 3 is used for adjusting the height, the head end of the height adjusting bolt 32 is rotated to adjust the height of the adjustable supporting upright post 35, and the position of the adjustable supporting upright post 35 is locked on the second supporting upright post 34 through the second fastening bolt 33 after the position is determined, so that the purpose of adjusting the height is achieved.

Wherein, the side of adjustable support post 35 is provided with the rectangular through-hole of second that extends along the direction of height, the tank bottom surface in the height adjustment inslot with the position that the rectangular through-hole of second corresponds is provided with the second screw, and second fastening bolt 33 passes the rectangular through-hole of second is connected in the second screw. The above-mentioned extending in the height direction means that the length direction of the second elongated through hole is set in the height direction.

In an embodiment, as shown in fig. 8, the axial positioning device 5 includes a third adjustable bottom plate 51, a third supporting column 52 is fixedly connected to an upper surface of the third adjustable bottom plate 51, and an axial positioning block 54 is connected to the third supporting column 52, and the axial positioning block 54 is used for performing axial contact positioning on a positioning surface of the crankshaft 8. The third adjustable bottom plate 51 is fixedly connected with the bottom of the third support column 52 through a bolt, and the third support column 52 is connected with the axial positioning block 54 through a third fastening bolt 53. To facilitate the connection, the top end of the third support column 52 is provided with a groove for placing the axial positioning block 54. The length of the positioning surface of the axial positioning block 54 is set along the vertical direction, so that the positioning height is a range value, thereby being suitable for different positioning height requirements.

The top pressing device 4 comprises a fourth adjustable bottom plate 41, a fourth supporting upright 42 is fixedly connected to the upper surface of the fourth adjustable bottom plate 41, and a first pressing mechanism is arranged at the top end of the fourth supporting upright 42. The bottom end of the fourth support column 42 is bolted to the fourth adjustable base plate 41. The first pressing mechanism is used for pressing the crankshaft 8 from top to bottom, the pressing position is of a balance structure, the first pressing mechanism is matched with the angular positioning device 3 for use, and the crankshaft 8 is prevented from rotating along the axis.

Specifically, as shown in fig. 7, the first pressing mechanism includes a first pressing plate 46 horizontally disposed, a first long through groove having a length direction perpendicular to the axis of the crankshaft 8 is disposed on the first pressing plate 46, a first pressing head 47 is disposed at one end of the first pressing plate 46 close to the crankshaft 8, a first adjusting screw is slidably connected in the first long through groove, and the position of the first pressing head 47 is conveniently adjusted by disposing the first long through groove. One end of the first adjusting screw is in threaded connection with the top end of the fourth supporting upright post 42, the other end of the first adjusting screw penetrates through the first long through groove and then is in threaded connection with the first manual knob 45, the first adjusting screw is sleeved with a first spring 44, and the first spring 44 is arranged between the first pressing plate 46 and the fourth supporting upright post 42. The pressing end of the first pressing head 47 is made of nylon.

After the crankshaft 8 is correctly placed on the first V-shaped block supporting device 2 and the second V-shaped block supporting device 6, the first pressing plate 46 is manually pushed to a position above the pressing position along the first long through groove, the first manual knob 45 is rotated, the first pressing plate 46 is pressed by the first manual knob 45 to move downwards, the first pressing plate 46 compresses the first spring 44 until the pressing surface of the first pressing head 47 presses the pressing position on the crankshaft 8, the crankshaft 8 is pressed and positioned, and the crankshaft 8 is prevented from rotating. When the top pressing device 4 is detached after detection is finished, only the first manual knob 45 needs to be rotated reversely, and the first spring 44 enables the first pressing plate 46 to move upwards under the action of self elasticity, so that the first pressing head 47 is not contacted with the crankshaft 8 any more, and the first pressing plate 46 is pulled in the direction away from the crankshaft 8, so that the crankshaft 8 can be taken down and mounted next time.

Further, the first pressing mechanism further comprises a first limit screw 43, one end of the first limit screw 43 is connected to the top end of the fourth support upright 42 in a threaded manner, and the other end of the first limit screw 43 penetrates through the first long through groove and then is connected with a nut. Through setting up first stop screw 43, conveniently compress tightly the first clamp plate 46 after the location and carry on spacingly, prevent that first clamp plate 46 from rocking at the testing process. Furthermore, in order to improve the limiting capability, the first limiting screw 43 is located at both sides of the first pressing plate 46 and is in threaded connection with a nut, so that the upper surface and the lower surface of the first pressing plate 46 can be conveniently positioned. When the top pressing device 4 is detached after detection is finished, the nuts positioned on the upper surface and the lower surface of the first pressing plate 46 are loosened, and then the first manual knob 45 is rotated reversely.

In the above embodiment, the first adjusting screw and the first limiting screw 43 may be directly connected to the top of the fourth supporting upright 42 through a threaded hole formed in the top surface of the fourth supporting upright 42, or may be connected to the top of the fourth supporting upright 42 through a nut welded to the top surface of the fourth supporting upright 42, which is not limited herein.

The axial pressing device 7 comprises a second pressing plate 74 which is vertically arranged, a second long through groove which is vertically arranged on the bottom plate 1 in the length direction is formed in the second pressing plate 74, a second pressing head 75 is arranged on one side, close to the crankshaft 8, of the second pressing plate 74, and a second adjusting screw rod is connected in the second long through groove in a sliding mode; one end of the second adjusting screw is in threaded connection with the side surface of the first supporting upright column 22 of the second V-shaped block supporting device 6, the other end of the second adjusting screw passes through the second long through groove and then is in threaded connection with the second manual knob 73, the second adjusting screw is sleeved with a second spring 72, and the second spring 72 is arranged between the second pressing plate 74 and the first supporting upright column 22 of the second V-shaped block supporting device 6.

After the crankshaft 8 is correctly placed on the first V-shaped block supporting device 2 and the second V-shaped block supporting device 6, the second pressing plate 74 is manually pushed to the side of the pressing position along the second long through groove, the second manual knob 73 is rotated, the second manual knob 73 presses the second pressing plate 74 to move in the direction close to the axial positioning surface of the crankshaft 8, the second pressing plate 74 compresses the second spring 72 until the pressing surface of the second pressing head 75 presses the position of the pressing positioning surface on the crankshaft 8, the crankshaft 8 is pressed and positioned, and the crankshaft 8 is prevented from axial displacement. The disassembling process refers to the disassembling process of the first pressing mechanism, and is not described in detail here. The pressing end of the second pressing head 75 is made of nylon.

The axial pressing device 7 further comprises a second limiting screw rod 71, one end of the second limiting screw rod 71 is in threaded connection with the side surface of the first supporting upright column 22 of the second V-shaped block supporting device 6, and the other end of the second limiting screw rod passes through the second long through groove and then is connected with a nut. In order to improve the limiting capacity, nuts are respectively in threaded connection with the two sides of the second limiting screw 71, which are located on the second pressing plate 74, so that the left and right surfaces of the second pressing plate 74 can be conveniently positioned. When the axial pressing device 7 is dismounted after detection is finished, the nuts positioned on the left and right surfaces of the second pressing plate 74 are firstly loosened, and then the second manual knob 73 is rotated reversely.

In a specific embodiment, as shown in fig. 7, in order to adjust the position of the top pressing device 4 on the bottom plate 1, two third long through slots are arranged in parallel on the fourth adjustable bottom plate 41, the length direction of the third long through slot is arranged in parallel to the axial direction of the crankshaft 8, and the fourth adjustable bottom plate 41 is connected to the bottom plate 1 through bolts penetrating through the third long through slot. The third long through groove is arranged, so that the top pressing device 4 can be adjusted in the left-right direction, and the first long through groove arranged on the first pressing mechanism is arranged so that the top pressing device 4 can be adjusted in the direction close to or far away from the crankshaft 8.

The sliding blocks matched with the sliding grooves 11 are arranged on the bottom surfaces of the first adjustable bottom plate 21, the second adjustable bottom plate 31 and the third adjustable bottom plate 51, and guiding is convenient when the first adjustable bottom plate 21, the second adjustable bottom plate 31 and the third adjustable bottom plate 51 move. The first adjustable bottom plate 21, the second adjustable bottom plate 31 and the third adjustable bottom plate 51 are all provided with connecting through holes, and the positions of the connecting through holes correspond to the positions of the sliding grooves 11. A position adjusting T-shaped block 12 is connected in the chute 11 in a sliding manner, and the first adjustable bottom plate 21, the second adjustable bottom plate 31 and the third adjustable bottom plate 51 are all connected to the position adjusting T-shaped block 12 at the corresponding position through a positioning screw passing through the connecting through hole. The positions of the first V-shaped block supporting device 2, the angular positioning device 3, the axial positioning device 5 and the second V-shaped block supporting device 6 are adjusted by the position adjusting T-shaped block 12 sliding in the sliding chute 11.

The utility model discloses an anchor clamps for engine crankshaft detects have mistake proofing and error correction function, effectively avoid the operative employee bent axle to place the mistake that does not target in place, the location does not realize, if when the direction was changed is placed to the flange end and the axle head of bent axle 8, the phenomenon on anchor clamps can not be placed to bent axle 8 can appear in this anchor clamps, guarantees that the operative employee in time discovers to place the direction mistake, in time corrects.

The utility model discloses an anchor clamps for engine crankshaft detects, each positioner homoenergetic enough adapts to the not location of co-altitude, the adjustment that all can be independent carries out the position, and strutting arrangement can carry out the adjustment of support position according to detection scheme, makes anchor clamps strong adaptability, can satisfy the measurement clamping operation of different specification model bent axles 8.

The utility model discloses an anchor clamps for engine crankshaft detects, overall structure is simple, and the structural style of each part is simple, and the processing cost is low, can satisfy the measuring convenience of measurement engineer simultaneously, and measurement engineer can satisfy the measurement demand under the prerequisite of a clamping.

The utility model discloses an anchor clamps for engine crankshaft detects can realize bent axle 8's repeated location easily, all is in same state when each bent axle 8 is placed on this anchor clamps promptly, need not the three-coordinate measuring machine and carries out the repetition and beat the location, can reduce measuring time greatly when measuring in batches, improves measurement of efficiency.

In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The clamp for detecting the crankshaft of the engine comprises a bottom plate (1), and is characterized in that a sliding groove (11) is formed in the bottom plate (1), and the length direction of the sliding groove (11) is consistent with the axial direction of a crankshaft (8); a first V-shaped block supporting device (2), an angular positioning device (3), an axial positioning device (5) and a second V-shaped block supporting device (6) are sequentially connected to the sliding chute (11) in a sliding mode, a top pressing device (4) with an adjustable position is arranged beside the angular positioning device (3), and an axial pressing device (7) is arranged on one side, away from the axial positioning device (5), of the second V-shaped block supporting device (6); the positioning or supporting heights of the first V-shaped block supporting device (2), the angular positioning device (3), the axial positioning device (5), the second V-shaped block supporting device (6), the top pressing device (4) and the axial pressing device (7) are all adjustable.

2. The clamp for detecting the engine crankshaft according to the claim 1, characterized in that the bottom plate (1) is provided with two parallel sliding grooves (11), and the bottom plate (1) is provided with a bolt mounting hole (13) and a positioning pin hole (14).

3. The clamp for the engine crankshaft detection according to claim 1, wherein the first V-shaped block supporting device (2) and the second V-shaped block supporting device (6) each comprise a first adjustable bottom plate (21), a first supporting upright (22) and a V-shaped block (23), the upper surface of the first adjustable bottom plate (21) is fixedly connected with the bottom end of the first supporting upright (22), the V-shaped block (23) is connected to the upper end of the first supporting upright (22) in a sliding mode, and the first supporting upright (22) and the V-shaped block (23) are positioned through a first fastening bolt (24).

4. The clamp for engine crankshaft detection according to claim 3, characterized in that two first elongated through holes extending in the height direction are provided on the side surface of the V-shaped block (23), a first screw hole is provided on the first support pillar (22) at a position corresponding to the first elongated through holes, and the first fastening bolt (24) passes through the first elongated through holes and is connected in the first screw hole.

5. The clamp for engine crankshaft detection according to claim 3, characterized in that the support end of the V-block (23) of the first V-block support device (2) comprises two V-shaped support plates arranged in parallel, with a detection gap being provided between the two V-shaped support plates.

6. The clamp for the engine crankshaft detection according to claim 1, wherein the angular positioning device (3) comprises a second adjustable bottom plate (31), a second support column (34) is fixedly connected to the upper surface of the second adjustable bottom plate (31), an adjustable support column (35) is slidably connected to the second support column (34), the adjustable support column (35) is positioned on the second support column (34) through a second fastening bolt (33), and a support block (36) is arranged at the upper end of the adjustable support column (35).

7. The clamp for engine crankshaft detection according to claim 6, characterized in that a height adjustment groove is formed in a side surface of the second support column (34), the adjustable support column (35) is slidably connected in the height adjustment groove, a second elongated through hole extending in a height direction is formed in the side surface of the adjustable support column (35), a second screw hole is formed in a position, corresponding to the second elongated through hole, of a bottom surface of the groove in the height adjustment groove, and the second fastening bolt (33) penetrates through the second elongated through hole to be connected in the second screw hole.

8. The clamp for engine crankshaft detection according to claim 7, characterized in that a height adjusting bolt (32) is provided on the bottom end face of the adjustable support pillar (35).

9. The clamp for detecting the crankshaft of the engine according to claim 1, wherein the axial positioning device (5) comprises a third adjustable bottom plate (51), a third support column (52) is fixedly connected to the upper surface of the third adjustable bottom plate (51), an axial positioning block (54) is connected to the third support column (52), and the axial positioning block (54) is used for axially positioning a positioning surface of the crankshaft (8) in a contact manner.

10. The clamp for the engine crankshaft detection according to claim 1, characterized in that the top pressing device (4) comprises a fourth adjustable bottom plate (41), a fourth supporting upright (42) is fixedly connected to the upper surface of the fourth adjustable bottom plate (41), and a first pressing mechanism is arranged at the top end of the fourth supporting upright (42).

11. The clamp for detecting the crankshaft of the engine according to claim 10, wherein the first pressing mechanism comprises a first pressing plate (46) which is horizontally arranged, a first long through groove with the length direction perpendicular to the axis of the crankshaft (8) is formed in the first pressing plate (46), a first pressing head (47) is arranged at one end, close to the crankshaft (8), of the first pressing plate (46), and a first adjusting screw rod is slidably connected in the first long through groove; one end threaded connection of first adjusting screw is in the top of fourth support post (42), and the other end passes behind the first long logical groove with first manual knob (45) threaded connection, the cover is equipped with first spring (44) on the first adjusting screw, first spring (44) set up first clamp plate (46) with between fourth support post (42).

12. The clamp for detecting the crankshaft of the engine as claimed in claim 11, wherein the first pressing mechanism further comprises a first limit screw (43), one end of the first limit screw (43) is connected to the top end of the fourth supporting upright (42) in a threaded manner, and the other end of the first limit screw passes through the first long through slot and then is connected with a nut.

13. The clamp for detecting the crankshaft of the engine according to claim 1, wherein the axial pressing device (7) comprises a second pressing plate (74) which is vertically arranged, a second long through groove which is vertically arranged in the length direction is formed in the second pressing plate (74), a second pressing head (75) is arranged on one side, close to the crankshaft (8), of the second pressing plate (74), and a second adjusting screw rod is slidably connected in the second long through groove; one end of the second adjusting screw is in threaded connection with the side face of the first supporting upright post (22) of the second V-shaped block supporting device (6), the other end of the second adjusting screw penetrates through the second long through groove and then is in threaded connection with the second manual knob (73), the second adjusting screw is sleeved with a second spring (72), and the second spring (72) is arranged between the second pressing plate (74) and the first supporting upright post (22) of the second V-shaped block supporting device (6).

14. The clamp for engine crankshaft detection according to claim 13, characterized in that the axial compression device (7) further comprises a second limit screw (71), one end of the second limit screw (71) is screwed on the side of the first support pillar (22) of the second V-block support device (6), and the other end of the second limit screw passes through the second long through slot and is connected with a nut.

15. The clamp for engine crankshaft detection according to claim 10, wherein two third long through slots are arranged in parallel on the fourth adjustable bottom plate (41), the length direction of the third long through slot is arranged in parallel to the axial direction of the crankshaft (8), and the fourth adjustable bottom plate (41) is connected to the bottom plate (1) through bolts penetrating through the third long through slot.