Crankshaft position test bench

Abstract

The invention provides a crankshaft position testboard, and relates to the technical field of testboards, the crankshaft position testboard comprises a testboard body and a sampling mechanism, the upper surface of the testboard body is provided with an adjusting arm, one side, close to the adjusting arm, of the testboard body is provided with a lofting table, and one side, close to the lofting table, of the testboard body is provided with the sampling mechanism; the sampling mechanism comprises a fixing plate, the fixing plate is fixedly connected with one side of the test board body, one side of the fixing plate is fixedly connected with a power motor, and the output end of the power motor is fixedly connected with a bidirectional screw rod. According to the crankshaft sampling and lofting device, when the tested crankshaft needs to be taken out of the lofting table, sampling work can be completed through the sampling mechanism, so that the sampling work efficiency can be improved, when sampling is conducted through the sampling mechanism, the crankshaft to be detected can be placed into the lofting table through the sampling mechanism, the time of the whole sampling and lofting process can be shortened, and the sampling efficiency is improved. And the working efficiency of the test board body is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of test benches, and in particular to a crankshaft position test bench. Background Art

[0002] A test bench is a device used to test and calibrate the crankshaft position, angle and rotation accuracy. The test bench is usually used in engine manufacturing, maintenance and inspection to ensure that the installation, rotation and coordination of the crankshaft and various components meet the requirements to ensure the normal operation of the engine.

[0003] The invention with the publication number CN114616449A discloses a test bench, and the technical solution thereof is as follows: The invention relates to a test bench having a base, on which a test bench driver is arranged, and the test bench driver has a test shaft that can be driven in a manner that can rotate around a rotation axis, wherein the test shaft can be coaxially connected to a bearing shaft of a bearing unit that is supported in a manner that can rotate around the rotation axis. Here, the bearing unit is detachably arranged in a recessed portion coaxial with the rotation axis of a bearing housing that is firmly connected to the base, and the bearing shaft has a fastening element for fastening a specimen in a detachable manner on its end that is away from the test bench driver and extends from the bearing housing. In the bearing housing, the coaxial recess is a recess in the form of a conical segment symmetrical to the axis of rotation, the bearing sleeve of the bearing unit is arranged in the recess, the bearing sleeve has an outer conical wall, and the conical wall rests on the wall of the conical segment-shaped recess with its outer contour at least partially identical to the contour of the wall of the conical segment-shaped recess, wherein the bearing sleeve has a through bearing bore coaxial with the axis of rotation, and the bearing shaft is rotatably supported in the bearing bore via one or more bearings.

[0004] Regarding the above-mentioned related content, the following technical defects exist: The crankshaft position test bench is a device used to test and calibrate the crankshaft position, angle and rotation accuracy. The test bench is usually used in engine manufacturing, maintenance and inspection to ensure that the installation, rotation and coordination of the crankshaft and various components meet the requirements to ensure the normal operation of the engine. Usually when testing the crankshaft, the crankshaft is placed in the layout table and cooperated with the adjusting arm to complete the task of testing the crankshaft. However, after the test is completed, when the crankshaft needs to be taken out of the layout table, the workers cannot complete the sampling task quickly manually. Sampling will waste a lot of time and affect the sampling efficiency, thereby delaying the overall work efficiency.

[0005] Therefore, it is necessary to provide a new crankshaft position test bench to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a crankshaft position test bench.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it comprises a test bench body and a sampling mechanism, the upper surface of the test bench body is installed with an adjusting arm, the side of the test bench body close to the adjusting arm is installed with a sample setting platform, the side of the test bench body close to the sample setting platform is provided with a sampling mechanism, the sampling mechanism comprises a fixing plate, the fixing plate is fixedly connected to one side of the test bench body, one side of the fixing plate is fixedly connected to a power motor, the output end of the power motor is fixedly connected to a bidirectional screw, both ends of the circular arc surface of the bidirectional screw are threadedly connected with an adjusting rod, the inner walls of the two adjusting rods are slidably penetrated by the same guide rod, one end of the circular arc surface of the guide rod is fixedly connected to the fixing plate, one end of the circular arc surface of the adjusting rod away from the bidirectional screw is fixedly connected with an adjusting block, the positions of the sample setting platform corresponding to the two adjusting blocks are provided with sampling grooves, and the two adjusting blocks are respectively slidably connected to the inner walls of the two sampling grooves The cam is provided with a plurality of guide wheels, and the plurality of guide wheels are provided with a plurality of guide wheels, and the plurality of guide wheels are provided with a plurality of guide wheels, and the plurality of guide wheels are provided with a plurality of guide wheels.

[0008] By adopting the above technical scheme, the crankshaft position test bench body is a device for testing and calibrating the crankshaft position, angle and rotation accuracy. The test bench body is usually used in engine manufacturing, maintenance and inspection to ensure that the installation, rotation and coordination of the crankshaft and various components meet the requirements to ensure the normal operation of the engine. Usually, when testing the crankshaft, the crankshaft is placed in the layout table and cooperates with the adjusting arm to complete the task of testing the crankshaft. However, after the test is completed, when the crankshaft needs to be taken out of the layout table, the workers cannot complete the sampling task quickly manually, and sampling will waste a lot of time, affecting the sampling efficiency, thereby delaying the entire work efficiency. At this time, sampling and layout can be carried out through the sampling mechanism, thereby improving the work efficiency of the entire test bench body and improving work progress.

[0009] Preferably, a contact plate is fixedly connected to a side of the fixing block away from the first supporting plate, and a cross section of the contact plate is arc-shaped.

[0010] By adopting this preferred solution, when the clamp drives the crankshaft to contact the fixed block, the contact plate installed on the fixed block can prevent the fixed block from directly contacting the crankshaft, thereby avoiding direct contact damage between the fixed block and the crankshaft.

[0011] Preferably, a friction pad is fixedly connected to a side of the clamping plate close to the fixing block, and an anti-slip pattern is provided on a side of the friction pad away from the clamping plate.

[0012] By adopting the above technical solution, when the splint cooperates with the fixing block to contact the crankshaft, the friction pad installed on the splint can increase the friction force when the splint contacts the crankshaft, thereby improving the contact stability between the splint and the crankshaft.

[0013] Preferably, both ends of the arc surface of the guide rod are fixedly connected with protective rings.

[0014] By adopting the above technical solution, when the adjusting rod slides on the guiding rod, the protective ring installed on the guiding rod can prevent the adjusting rod from contacting with the guiding rod, thereby preventing the adjusting rod from contacting with the guiding rod and causing abutment damage under the action of the protective ring.

[0015] Preferably, the guide rod is a titanium alloy rod.

[0016] By adopting the above technical solution, a guide rod made of titanium alloy is achieved, the surface of the rod body is relatively hard, and the guide rod is in contact with air for a long time, the surface of the rod body is also less likely to deform, and the service life is longer.

[0017] Preferably, the cross section of the adjusting block is arc-shaped.

[0018] By adopting the above technical solution, the arc-shaped adjusting block has better stability when in contact with the sampling slot, and the arc-shaped adjusting block can improve the stability when in contact with the sampling slot.

[0019] Preferably, an auxiliary mechanism is provided on one side of the layout frame, and the auxiliary mechanism includes a second support plate, the second support plate is fixedly connected to one side of the layout frame, one side of the second support plate is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a connecting rod, one end of the arc surface of the connecting rod is fixedly connected to a push plate, and a connecting groove is opened on the layout frame at a position corresponding to the push plate, and the push plate is slidably connected to the inner wall of the connecting groove.

[0020] By adopting the above technical solution, when the tested crankshaft is placed into the layout frame through the sampling mechanism, the sampling work can be carried out through the push plate of the auxiliary mechanism, so that the crankshaft can stably contact the layout frame, thereby improving the stability of the layout and preventing the crankshaft from slipping out of the hands of the workers when they manually remove the crankshaft from the clamp and the fixing block.

[0021] Preferably, a material discharge frame is fixedly connected to a side of the push plate away from the connecting rod.

[0022] By adopting the above technical solution, when the crankshaft is placed on the push plate, the discharge frame installed on the push plate can limit the placement position of the crankshaft on the push plate, thereby improving the stability of the crankshaft when the push plate drives the crankshaft to move at high speed.

[0023] Preferably, an anti-slip mechanism is provided on the side of the test bench body away from the layout table, and the anti-slip mechanism includes a mounting plate, the mounting plate is slidably connected to one side of the test bench body, the inner wall of the mounting plate is slidably connected with four assembly rods, one end of the arc surfaces of the four assembly rods are fixedly connected to the test bench body, the arc surface of the assembly rod is slidably connected with a connecting ring, one end of the arc surface of the connecting ring is fixedly connected to one side of the inner wall of the mounting plate, the arc surface of the assembly rod is threadedly connected with a rotating ring, and the side of the mounting plate away from the test bench body is fixedly connected with an anti-slip plate.

[0024] By adopting the above technical solution, when the test bench body is placed on a workbench for use, the anti-slip mechanism can improve the stability of the test bench body when in contact with the workbench, thereby improving the stability of the test bench body when in use and avoiding sliding.

[0025] Preferably, the arc surface of the rotating ring is provided with a plurality of anti-skid grooves, and the plurality of anti-skid grooves are evenly distributed on the arc surface of the rotating ring.

[0026] By adopting the above technical solution, when the rotating ring is rotated on the assembly rod, the anti-skid grooves on the rotating ring can increase the friction on the surface of the rotating ring body, thereby improving the speed and efficiency of rotating the rotating ring on the assembly rod through the anti-skid grooves.

[0027] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, by setting a sampling mechanism, when it is necessary to take out the crankshaft that has completed the test from the sample setting table, the sampling work can be completed by the sampling mechanism, thereby improving the sampling efficiency. When sampling is performed by the sampling mechanism, the crankshaft to be tested can be placed in the sample setting table by the sampling mechanism, thereby shortening the time of the entire sampling and setting process, and further improving the working efficiency of the test bench body.

[0028] 2. In the present invention, an auxiliary mechanism is provided to take the crankshaft out of the layout table through the sampling mechanism. When the crankshaft is layouted, the auxiliary mechanism can be used to assist the sampling mechanism to complete the layout task, thereby avoiding the crankshaft from colliding with the layout frame when the crankshaft is layouted from a high place.

[0029] 3. In the present invention, by providing an anti-skid mechanism, the anti-skid mechanism can be installed at the bottom of the test bench when the test bench is in use. Thus, by installing the anti-skid mechanism at the bottom of the test bench, the stability of the test bench during use can be improved, and the contact effect between the test bench and the workbench can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional structural schematic diagram of a crankshaft position test bench is proposed for the present invention; Figure 2 The present invention provides a structural schematic diagram of a sampling mechanism of a crankshaft position test bench; Figure 3 for Figure 2 A magnified image of point A; Figure 4 A partial structural schematic diagram of a sampling mechanism of a crankshaft position test bench proposed by the present invention; Figure 5 A partially enlarged structural schematic diagram of a sampling mechanism of a crankshaft position test bench proposed by the present invention; Figure 6 A partial structural schematic diagram of a sampling mechanism of a crankshaft position test bench is provided for the present invention; Figure 7 A structural schematic diagram of an auxiliary mechanism of a crankshaft position test bench is proposed for the present invention; Figure 8 A partially enlarged structural schematic diagram of an auxiliary mechanism of a crankshaft position test bench proposed by the present invention; Fig. 9 The present invention provides a structural schematic diagram of an anti-skid mechanism of a crankshaft position test bench; Fig.10 The present invention provides a schematic diagram of the partial disassembled structure of an anti-skid mechanism of a crankshaft position test bench.

[0031] Legend: 1. Test bench body; 2. Sampling mechanism; 201. Fixing plate; 202. Power motor; 203. Bidirectional screw; 204. Adjusting rod; 205. Adjusting block; 206. Sampling slot; 207. Guide block; 208. Contact block; 209. Slot; 210. Turntable; 211. First support plate; 212. Adjusting gear; 213. Rotating gear; 214. Cylinder; 215. Lofting frame; 216. Clamp; 217. Fixing block; 218. Connector Connecting plate; 219, stepping motor; 220, contact plate; 221, friction pad; 222, guide rod; 223, protection ring; 224, fixed frame; 3, auxiliary mechanism; 31, connecting groove; 32, second support plate; 33, electric push rod; 34, connecting rod; 35, push plate; 36, material discharge frame; 4, anti-skid mechanism; 41, mounting plate; 42, connecting ring; 43, assembly rod; 44, rotating ring; 45, anti-skid plate; 46, anti-skid groove; 5, adjusting arm; 6, sample placing table. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0034] Embodiment 1, as Figure 1-10 As shown, the present invention provides a crankshaft position test bench, including a test bench body 1 and a sampling mechanism 2, an adjusting arm 5 is installed on the upper surface of the test bench body 1, a sample setting table 6 is installed on the side of the test bench body 1 close to the adjusting arm 5, a sampling mechanism 2 is provided on the side of the test bench body 1 close to the sample setting table 6, an auxiliary mechanism 3 is provided on one side of the sample setting frame 215, and an anti-slip mechanism 4 is provided on the side of the test bench body 1 away from the sample setting table 6.

[0035] The specific configuration and functions of the sampling mechanism 2, the auxiliary mechanism 3 and the anti-slip mechanism 4 are described in detail below.

[0036] like Figure 1 - Figure 6As shown, the sampling mechanism 2 includes a fixed plate 201, which is fixedly connected to one side of the test bench body 1, and a power motor 202 is fixedly connected to the fixed plate 201. The output end of the power motor 202 is connected to a bidirectional screw 203, and both ends of the bidirectional screw 203 are connected to an adjusting rod 204 through an arc surface thread. A guide rod 222 slides through the inner wall of the adjusting rod 204, and one end of the guide rod 222 is fixed to the fixed plate 201. An adjusting block 205 is connected to the end of the adjusting rod 204 away from the bidirectional screw 203. A sampling groove 206 is provided on the sample setting table 6 corresponding to the adjusting block 205. The adjusting block 205 is slidably connected to the inner wall of the sampling groove 206, and the inner wall of the sample setting table 6 is fixedly connected to the guide block 207. One of the adjusting blocks 205 is The test bench body 1 is fixedly connected with three contact blocks 208 on one side, and another adjusting block 205 is provided with three slots 209. A fixing frame 224 is fixedly connected to one end of the test bench body 1. A turntable 210 is rotatably penetrated through the inner wall of the fixing frame 224. An adjusting gear 212 is fixedly connected to one side of the turntable 210. The adjusting gear 212 is meshed with a rotating gear 213. A first supporting plate 211 is connected to the side of the turntable 210 away from the adjusting gear 212. A cylinder 214 is fixedly connected to both sides of the supporting plate. The output end of the cylinder 214 is connected to a clamping plate 216. A fixing block 217 is connected to the side of the clamping plate 216 close to the output end. A connecting plate 218 is fixedly connected to one side of the fixing frame 224. A stepping motor 219 is fixedly connected to one side of the connecting plate 218. The output end of the stepping motor 219 is connected to the clamping plate 216. The rotating gear 213 is connected, and the fixed frame 224 is connected to the sample frame 215 at one end away from the test bench body 1. The crankshaft position test bench body 1 is a device for testing and calibrating the crankshaft position, angle and rotation accuracy. The test bench body 1 is usually used in engine manufacturing, maintenance and inspection to ensure that the installation, rotation and coordination of various components of the crankshaft meet the requirements to ensure the normal operation of the engine. Usually, when testing the crankshaft, the crankshaft will be placed in the sample table 6, and the adjustment arm 5 will be used to complete the task of testing the crankshaft. However, after the test is completed, when the crankshaft needs to be taken out of the sample table 6, the worker cannot complete the sampling task quickly manually, and sampling will waste a lot of time, affecting the efficiency of sampling, thereby delaying the entire work. The working efficiency can be improved by sampling and setting out through the sampling mechanism 2, thereby improving the working efficiency of the entire test bench body 1 and improving the working progress. The fixed block 217 is fixedly connected to a contact plate 220 on the side away from the first support plate 211. The cross section of the contact plate 220 is arc-shaped. When the clamping plate 216 drives the crankshaft to contact the fixed block 217, the contact plate 220 installed on the fixed block 217 can prevent the fixed block 217 from directly contacting the crankshaft, thereby preventing the fixed block 217 from directly contacting the crankshaft and causing abutment damage. The side of the clamping plate 216 close to the fixed block 217 is fixedly connected to a friction pad 221, and the side of the friction pad 221 away from the clamping plate 216 is provided with anti-slip grooves. When the clamping plate 216 cooperates with the fixed block 217 to contact the crankshaft,The friction pad 221 installed on the clamping plate 216 can increase the friction force when the clamping plate 216 contacts the crankshaft, thereby improving the stability of the contact between the clamping plate 216 and the crankshaft. The arc surface of the guide rod 222 is fixedly connected with a protective ring 223 at both ends. When the adjusting rod 204 slides on the guide rod 222, the protective ring 223 installed on the guide rod 222 can prevent the adjusting rod 204 from contacting the guide rod 222, thereby preventing the adjusting rod 204 from contacting the guide rod 222 under the action of the protective ring 223. The guide rod 222 is a titanium alloy rod. The guide rod 222 made of titanium alloy has a relatively hard surface. The guide rod 222 is in contact with the air for a long time, and its surface is also difficult to deform. The service life is long. The cross section of the adjustment block 205 is arc-shaped. When the arc-shaped adjustment block 205 contacts the sampling slot 206, the arc-shaped adjustment block 205 has better stability when contacting the sampling slot 206. The arc-shaped adjustment block 205 can improve the stability when contacting the sampling slot 206.

[0037] like Figure 7 and Figure 8 As shown, the auxiliary mechanism 3 includes a second support plate 32, the second support plate 32 is fixedly connected to one side of the layout frame 215, an electric push rod 33 is installed on one side of the second support plate 32, the output end of the electric push rod 33 is fixedly connected to a connecting rod 34, the movement of the electric push rod 33 can drive the connecting rod 34 to adjust, one end of the arc surface of the connecting rod 34 is fixedly connected to a push plate 35, the movement of the connecting rod 34 can drive the push plate 35 to move, the layout frame 215 is provided with a connecting groove 31 corresponding to the position of the push plate 35, the push plate 35 is slidably connected to the inner wall of the connecting groove 31, and the crankshaft that has completed the test is placed in the layout through the sampling mechanism 2. When the crankshaft is in the sample frame 215, the sampling work can be carried out through the push plate 35 of the auxiliary mechanism 3, so that the crankshaft can stably contact the sample frame 215, improve the stability of the sample, and avoid the crankshaft slipping out of the hands of the workers when the workers manually remove the crankshaft from the clamping plate 216 and the fixing block 217. The side of the push plate 35 away from the connecting rod 34 is fixedly connected with a discharge frame 36. When the crankshaft is placed on the push plate 35, the discharge frame 36 installed on the push plate 35 can limit the placement position of the crankshaft on the push plate 35, so as to improve the stability of the crankshaft when the push plate 35 drives the crankshaft to move at high speed.

[0038] like Fig. 9 and Fig.10As shown, the anti-skid mechanism 4 includes a mounting plate 41, which is slidably connected to one side of the test bench body 1, and the inner wall of the mounting plate 41 is slidably connected with four assembly rods 43, and the four assembly rods 43 can slide out from the inner wall of the mounting plate 41, and one end of the arc surface of the four assembly rods 43 is fixedly connected to the test bench body 1, and the arc surface of the assembly rod 43 is slidably connected with a connecting ring 42, and one end of the arc surface of the connecting ring 42 is fixedly connected to one side of the inner wall of the mounting plate 41, and the arc surface of the assembly rod 43 is threadedly connected with a rotating ring 44, and the side of the mounting plate 41 away from the test bench body 1 is fixedly connected with an anti-slip plate 45, When the test bench body 1 is placed on a workbench for use, the anti-skid mechanism 4 can improve the stability of the test bench body 1 when it is in contact with the workbench, thereby improving the stability of the test bench body 1 when in use and avoiding sliding. A plurality of anti-skid grooves 46 are provided on the arc surface of the rotating ring 44, and the plurality of anti-skid grooves 46 are evenly distributed on the arc surface of the rotating ring 44. When the rotating ring 44 is rotated on the assembling rod 43, the anti-skid grooves provided on the rotating ring 44 can increase the friction force on the surface of the rotating ring 44, thereby improving the speed and efficiency of rotating the rotating ring 44 on the assembling rod 43 through the anti-skid grooves.

[0039] The overall working principle is to place the crankshaft to be inspected in one of the clamping plates 216 and the fixed block 217, and then start one of the cylinders 214. The movement of the cylinder 214 will drive the clamping plate 216 to move, and the movement of the clamping plate 216 will cooperate with the fixed block 217 to clamp the crankshaft to be inspected. At this time, the stepper motor 219 installed on the connecting plate 218 can be started, and the movement of the stepper motor 219 will drive the rotating gear 213 to move, and the movement of the rotating gear 213 will drive the adjusting gear 212 to rotate. At this time, the turntable 210 can be driven to rotate in the fixed frame 224 through the adjusting gear 212. At this time, the two cylinders 214 installed on the first supporting plate 211 can be driven to move, and the other cylinder 214 can be moved to the upper end of the sample table 6. When the power motor 202 installed on the fixed plate 201 is started, the movement of the power motor 202 will drive the bidirectional screw 203 to rotate through the output end, and the rotation of the bidirectional screw 203 will drive the adjusting rod 204 to move toward the side close to each other along the direction of the guide rod 222, and the movement of the adjusting rod 204 will drive the adjusting block 205 to slide in the sampling groove 206. Under the action of the two adjusting blocks 205, the contact block 208 can be driven to connect with the card slot 209. At this time, the crankshaft that has completed the test can be taken out from the sample table 6. At this time, another cylinder 214 can be started, and the movement of the cylinder 214 will drive the clamping plate 216 to move through the output end, and the movement of the clamping plate 216 will drive the crankshaft to contact the guide block 207, and the crankshaft will move along the guide groove 206. The guide block 207 moves toward the fixed block 217, and the tested crankshaft can be clamped by the clamping plate 216. At this time, the stepping motor 219 can be started, and the tested crankshaft can be taken out from the sample table 6 and moved to the sample frame 215, and the crankshaft to be tested will move to the upper end of the sample table 6. At this time, the cylinder 214 can be started again, and one of the cylinders 214 will release the fixing effect on the crankshaft to be tested, and the crankshaft to be tested can contact the sample table 6 with the guide block 207, and the other cylinder 214 will release the fixing effect on the crankshaft, and the sampling work can be completed. When the clamping plate 216 drives the crankshaft to contact the fixed block 217, the contact plate 220 installed on the fixed block 217 can prevent the fixed block 217 from directly contacting the crankshaft. Thereby, it is avoided that the fixing block 217 directly contacts with the crankshaft and causes abutment damage. When the clamping plate 216 cooperates with the fixing block 217 to contact with the crankshaft, the friction pad 221 installed on the clamping plate 216 can increase the friction force when the clamping plate 216 contacts with the crankshaft, thereby improving the contact stability between the clamping plate 216 and the crankshaft. When the adjusting rod 204 slides on the guide rod 222, the protective ring 223 installed on the guide rod 222 can avoid the adjusting rod 204 from contacting with the guide rod 222. Therefore, under the action of the protective ring 223, it is avoided that the adjusting rod 204 and the guide rod 222 are contacted and caused to abut damage. The guide rod 222 made of titanium alloy has a relatively hard rod surface. Moreover, the guide rod 222 is in contact with the air for a long time, and its rod surface is also relatively difficult to deform.The service life is long. When the arc-shaped adjusting block 205 contacts the sampling slot 206, the arc-shaped adjusting block 205 has better stability when contacting the sampling slot 206. The arc-shaped adjusting block 205 can improve the stability when contacting the sampling slot 206.

[0040] When the sampling mechanism 2 transports the crankshaft to the upper end of the layout frame 215, the electric push rod 33 installed on the second support plate 32 can be started. The movement of the electric push rod 33 will drive the connecting rod 34 to move, and the movement of the connecting rod 34 will drive the push plate 35 to slide in the connecting groove 31. At this time, the push plate 35 can move in the direction of the crankshaft. At this time, the fixing effect of the sampling mechanism 2 on the crankshaft can be released, and the crankshaft can fall smoothly in the layout frame 215. The auxiliary mechanism 3 can also be used to transport the crankshaft to be inspected, so that the crankshaft can be clamped and fixed by the sampling mechanism 2 smoothly. Under the action of the auxiliary mechanism 3, the material taking mechanism can automatically replace the crankshaft for testing. When the crankshaft is placed on the push plate 35, the discharging frame 36 installed on the push plate 35 can limit the placement position of the crankshaft on the push plate 35, so as to improve the stability of the crankshaft when the push plate 35 drives the crankshaft to move at high speed.

[0041] The connecting ring 42 installed on the inner wall of the mounting plate 41 is aligned with the assembling rod 43, and one side of the mounting plate 41 is brought into contact with the test bench body 1. At this time, the rotating ring 44 can be rotated on the assembling rod 43, and the connecting ring 42 can be fixed to one side of the test bench body 1 through the rotating ring 44, and the mounting plate 41 can be fixed on the test bench body 1. The anti-skid plate 45 installed on the mounting plate 41 can increase the friction at the bottom of the entire test bench body 1. When the rotating ring 44 is rotated on the assembling rod 43, the anti-skid grooves on the rotating ring 44 can increase the friction on the surface of the rotating ring 44, so that the speed and efficiency of rotating the rotating ring 44 on the assembling rod 43 can be improved through the anti-skid grooves.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A crankshaft position test bench, comprising a test bench body (1) and a sampling mechanism (2), characterized in that: An adjusting arm (5) is mounted on the upper surface of the test bench body (1); a sample placing table (6) is mounted on a side of the test bench body (1) close to the adjusting arm (5); a sampling mechanism (2) is disposed on a side of the test bench body (1) close to the sample placing table (6); the sampling mechanism (2) comprises a fixing plate (201); the fixing plate (201) is fixedly connected to a side of the test bench body (1); a power motor (202) is fixedly connected to one side of the fixing plate (201); a bidirectional screw (203) is fixedly connected to an output end of the power motor (202); both ends of the circular arc surface of the bidirectional screw (203) are threadedly connected. An adjusting rod (204) is connected, and the inner walls of the two adjusting rods (204) are slidably penetrated by a same guide rod (222), one end of the circular arc surface of the guide rod (222) is fixedly connected to the fixed plate (201), and one end of the circular arc surface of the adjusting rod (204) away from the bidirectional screw (203) is fixedly connected to an adjusting block (205), and the positions of the sample setting platform (6) corresponding to the two adjusting blocks (205) are provided with sampling grooves (206), and the two adjusting blocks (205) are respectively slidably connected to the inner walls of the two sampling grooves (206), and one side of the inner wall of the sample setting platform (6) is fixedly connected to a guide block (207), one of which One side of the adjustment block (205) is fixedly connected to three contact blocks (208); another adjustment block (205) is provided with three slots (209) at positions corresponding to the two contact blocks (208); one end of the test bench body (1) is fixedly connected to a fixed frame (224); a rotating disk (210) is rotatably penetrated through the inner wall of the fixed frame (224); one side of the rotating disk (210) is fixedly connected to an adjustment gear (212); a tooth surface of the adjustment gear (212) is meshed with a rotating gear (213); and a side of the rotating disk (210) away from the adjustment gear (212) is fixedly connected to a first support plate ( 211), both sides of the first support plate (211) are fixedly connected to a cylinder (214), the output end of the cylinder (214) is fixedly connected to a clamping plate (216), the side of the cylinder (214) close to the output end is fixedly connected to a fixing block (217), one side of the fixing frame (224) is fixedly connected to a connecting plate (218), one side of the connecting plate (218) is fixedly connected to a stepping motor (219), the output end of the stepping motor (219) is fixedly connected to a rotating gear (213), and the end of the fixing frame (224) away from the test bench body (1) is fixedly connected to a lofting frame (215).

2. A crankshaft position test bench according to claim 1, characterized in that: A contact plate (220) is fixedly connected to a side of the fixing block (217) away from the first supporting plate (211); the cross section of the contact plate (220) is arc-shaped.

3. A crankshaft position test bench according to claim 1, characterized in that: A friction pad (221) is fixedly connected to a side of the clamping plate (216) close to the fixing block (217), and an anti-slip pattern is provided on a side of the friction pad (221) away from the clamping plate (216).

4. A crankshaft position test bench according to claim 1, characterized in that: Both ends of the arc surface of the guide rod (222) are fixedly connected with protection rings (223).

5. The crankshaft position test bench according to claim 1, characterized in that: The guide rod (222) is a titanium alloy rod.

6. The crankshaft position test bench according to claim 1, characterized in that: The cross section of the adjustment block (205) is arc-shaped.

7. The crankshaft position test bench according to claim 1, characterized in that: An auxiliary mechanism (3) is provided on one side of the lofting frame (215), the auxiliary mechanism (3) comprising a second support plate (32), the second support plate (32) being fixedly connected to one side of the lofting frame (215), an electric push rod (33) being fixedly connected to one side of the second support plate (32), an output end of the electric push rod (33) being fixedly connected to a connecting rod (34), an arc surface end of the connecting rod (34) being fixedly connected to a push plate (35), a connecting groove (31) being provided on the lofting frame (215) at a position corresponding to the push plate (35), the push plate (35) being slidably connected to an inner wall of the connecting groove (31).

8. A crankshaft position test bench according to claim 7, characterized in that: A material discharging frame (36) is fixedly connected to a side of the push plate (35) away from the connecting rod (34).

9. The crankshaft position test bench according to claim 1, characterized in that: An anti-slip mechanism (4) is provided on a side of the test bench body (1) away from the sample setting table (6), the anti-slip mechanism (4) comprising a mounting plate (41), the mounting plate (41) being slidably connected to one side of the test bench body (1), four assembly rods (43) being slidably connected to the inner wall of the mounting plate (41), one end of the circular arc surface of the four assembly rods (43) being fixedly connected to the test bench body (1), a connecting ring (42) being slidably connected to the circular arc surface of the assembly rod (43), one end of the circular arc surface of the connecting ring (42) being fixedly connected to one side of the inner wall of the mounting plate (41), a rotating ring (44) being threadedly connected to the circular arc surface of the assembly rod (43), and an anti-slip plate (45) being fixedly connected to the side of the mounting plate (41) away from the test bench body (1).

10. A crankshaft position test bench according to claim 9, characterized in that: The arc surface of the rotating ring (44) is provided with a plurality of anti-skid grooves (46), and the plurality of anti-skid grooves (46) are evenly distributed on the arc surface of the rotating ring (44).

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