CN216745799U - Water pump pulley groove axial position and circle measuring device that beats - Google Patents

Abstract

The utility model belongs to the technical field of workpiece measuring equipment, and particularly relates to a belt pulley measuring device. The utility model relates to a water pump pulley groove axial position and circle run-out measuring device, which comprises a movable base, a front and rear movable seat and a left and right movable seat, wherein the front and rear movable seat is assembled on the movable base in a front and rear guide way, the left and right movable seat is assembled on the front and rear movable seat in a left and right guide way, a measuring rod inserted into a pulley groove is fixed on the left and right movable seat, an axial position measuring meter is arranged on the movable base, a run-out measuring meter is arranged on the front and rear movable seat, and an elastic part for applying elastic force to the left and right movable seat to enable the measuring rod to be propped against the bottom of the pulley groove is arranged between the front and rear movable seat and the left and right movable seat. In the utility model, the displacement of the measuring rod in the front-back direction and the left-right direction can be transmitted to the axial position measuring meter and the runout measuring meter, the axial position data and the circular runout of the pulley groove can be measured under the condition of not replacing a detection tool, and the measurement efficiency is higher.

Description

Water pump pulley groove axial position and circle measuring device that beats

Technical Field

The utility model belongs to the technical field of workpiece measuring equipment, and particularly relates to a belt pulley measuring device.

Background

In the prior art, the requirement on the machining precision of the water pump belt pulley is high, and after machining is finished, detection is needed to determine whether machining is qualified. During detection, as shown in fig. 1, the water pump pulley 1 is fixedly connected with the pump base 2 and then fixed on the measuring tool 3, the distance H from the reference hole on the pump base 2 to the last groove on the pulley groove 4 needs to be measured, the axial position of the pulley groove 4 can be determined through the distance, and meanwhile, the circular runout of the last groove needs to be measured. At present to water pump pulley measuring instrument from examining a producer direct purchase or customization purchase usually, wherein the utensil cost of examining of direct purchase is lower, need use usually to examine utensil such as altimeter, percentage table, for example the utility model patent of grant bulletin number for CN214951003U discloses a altimeter, grant bulletin number for a lever percentage table disclosed in the utility model patent of CN 212409541U. The specific detection mode of the belt pulley groove parameters is as follows: fixing the water pump belt pulley 1 on a measuring tool 3, then placing the measuring tool 35 and a height indicator on a flat plate simultaneously, taking a reference block on the measuring tool 3 as a reference plane, calibrating the height indicator to zero, then moving the height indicator on the flat plate, enabling a measuring probe to extend into a specified groove of a belt pulley groove 4, and recording the obtained data, wherein the sum of the average value of the upper end surface and the lower end surface of a conical groove and the reference block obtained by measurement is the axial position of the belt pulley groove. And then, fixing the lever dial indicator on a flat plate, placing a measuring head of the lever dial indicator in a specified groove of a belt pulley groove, and rotating the belt pulley to detect the circular runout of the belt pulley.

However, in the above detection method, different detection tools are required to detect the axial position and the circular runout of the pulley groove, and the detection tool needs to be replaced in the detection process, so that the detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a water pump pulley groove axial position and circular runout measuring device, and solves the problem that a detecting device in the prior art is low in efficiency of detecting the axial position and the circular runout of a water pump pulley groove.

The technical scheme of the water pump pulley groove height and circular runout measuring device is as follows:

the water pump pulley groove axial position and circular runout measuring device comprises a guide rail, a movable base and a movable base locking structure, wherein the guide rail is fixedly assembled on a measuring platform, the movable base is in front-back guiding movable fit with the guide rail, the movable base locking structure is used for locking the movable base on the guide rail in the front-back direction after the front-back position of the movable base is determined, the water pump pulley groove axial position and circular runout measuring device also comprises a front-back movable seat and a left-right movable seat, the front-back movable seat is in front-back guiding movable assembly on the movable base, the left-right movable seat is in left-right guiding movable assembly on the front-back movable seat, a measuring rod inserted into a pulley groove is fixed on the left-right movable seat, and an axial position measuring meter for measuring the displacement of the front-back movable seat to calculate the axial position of the pulley groove is arranged on the movable base, the position measuring head of the axial position measuring meter can be in contact with the front and rear moving seats, and the front and rear moving seats are provided with a runout measuring meter for measuring circular runout of the pulley groove; the jumping measuring head of the jumping measuring meter can be contacted with the left and right moving seats; and an elastic part for applying elastic force to the left and right moving seats so that the measuring rod is propped against the bottom of the pulley groove is arranged between the front and rear moving seats and the left and right moving seats.

The utility model has the beneficial effects that: in the water pump pulley groove axial position and circular runout measuring device, the displacement of the measuring rod in the front and back direction can be transmitted to the position measuring head of the axial position measuring meter through the front and back moving seat, and the displacement of the measuring rod in the left and right direction can be transmitted to the runout measuring head of the runout measuring meter through the left and right moving seat. The measuring device is calibrated and then measured, when the measuring device is used, after the measuring rod is inserted into the belt pulley groove, the axial position measuring meter can measure the displacement of the measuring rod in the front and back directions, and the axial position data of the belt pulley groove can be obtained by combining the reference data. Through rotatory belt pulley, the measuring stick will reflect the circle of belt pulley groove through the mode of left and right reciprocating motion and beat, because the measuring stick with left and right sides removal seat is together fixed, under the effect of elastic component and measuring stick, left and right sides removal seat will also left and right reciprocating motion, and then with the contact of left and right sides removal seat the beat measuring head of beat measuring meter will also left and right reciprocating motion for the round of belt pulley groove is beated in the demonstration of beat measuring meter. The whole measuring process does not need to replace a measuring tool, and the measuring efficiency is higher.

Further, the movable base comprises a front base, a rear base, a left base and a right base, the front base and the rear base are matched with the guide rail in a front-and-rear mode, the left base and the right base are assembled on the front base and the rear base in a guiding mode in the left-and-right direction, the front-and-rear movable base is assembled on the left base and the right base, and the movable base locking structure is used for locking the front base and the rear base of the movable base on the guide rail.

The beneficial effects are that: the front base and the rear base of the movable base and the left base and the right base of the movable base can flexibly adjust the positions of the measuring rod in the front-rear direction and the left-right direction, so that the mounting position of the whole measuring device is more flexible, and the measuring device is not easy to collide with other structures.

Further, a push-pull mechanism is arranged on the front base and the rear base of the movable base and used for driving the left base and the right base to slide in the left-right direction, the push-pull mechanism comprises a push-pull rod connected with the left base and the right base, the push-pull rod is provided with a left limit position and a right limit position, and the push-pull mechanism further comprises a left base locking structure and a right base locking structure which lock the push-pull rod to lock the left base and the right base when the push-pull rod is positioned at the left limit position and the right limit position.

The beneficial effects are that: the push-pull mechanism not only can conveniently adjust the positions of the left base, the right base and the measuring rod through the push-pull rod, but also can prevent the left base and the right base from accidentally shaking through the left base locking structure and the right base locking structure, so that the measuring precision is reduced.

Furthermore, the elastic part is a compression spring which is sleeved on the periphery of the jumping measuring head.

The beneficial effects are that: the compression spring is used as an elastic part, so that the structure is simple, the cost is lower, and the installation is convenient.

Furthermore, a locking structure is arranged on the left and right moving seat and provided with a locking position and an unlocking position, when the locking position is reached, the locking assembly locks the left and right moving seat and the front and back moving seat together, and when the unlocking position is reached, the left and right moving seat and the front and back moving seat can slide relatively.

The beneficial effects are that: when the locking structure is located at the locking position, the left-right moving seat and the front-back moving seat are locked together, the situation that the left-right moving seat is pushed by the elastic piece to move back and forth before formal measurement can be avoided, and therefore accidental collision between the measuring device and a water pump belt pulley or a standard part for calibration can be avoided.

Furthermore, the locking structure is a lock pin assembly, the lock pin assembly comprises a lock pin seat and a lock pin, the lock pin seat is provided with a through hole, the lock pin is inserted into the through hole of the lock pin seat, the lock pin seat is fixed on the left and right moving seats, insertion holes opposite to the through hole of the lock pin seat are formed in the left and right moving seats and the front and rear moving seats, an L-shaped lock hole is formed in the outer peripheral surface of the lock pin seat, a stop pin used for being inserted into the L-shaped lock hole is arranged on the outer peripheral surface of the lock pin, when the stop pin is located in the horizontal section of the L-shaped lock hole, the lock pin assembly is located at an unlocking position, and when the stop pin is located in the vertical section of the L-shaped lock hole, the lock pin is inserted into the insertion holes in the front and rear moving seats so as to be located at the locking position.

The beneficial effects are that: the locking pin assembly is adopted as a locking structure, the structure is simple, and the operation is convenient.

Furthermore, a measuring rod seat is arranged on the left and right moving seats, the measuring rod is fixed on the measuring rod seat, and a positioning structure for positioning the measuring rod seat is arranged on the left and right moving seats.

The beneficial effects are that: utilize location structure can fix a position measuring stick seat and the measuring stick on it, avoid the measuring stick slope to influence measurement accuracy.

Furthermore, both ends of the measuring rod are conical tips which can be inserted into the grooves of the belt pulleys, and the measuring rod is detachably fixed on the left and right movable seats.

The beneficial effects are that: the both ends structure of measuring stick is the same, and the homoenergetic is used for inserting the pulley inslot and measures, and this kind of structure can improve the life of measuring stick, reduces measuring device's cost.

Furthermore, the movable base locking structure comprises a clamping block, a locking screw and a locking nut, wherein the locking screw and the locking nut are connected together through threads, the clamping block is fixed on the movable base and located on two sides of the guide rail, the locking screw penetrates through the clamping block, and the locking screw and the locking nut can tighten the clamping block to clamp the guide rail.

The beneficial effects are that: the clamping wall is locked by the locking nut and the locking screw rod, the structure is simple, and the operation is convenient.

Furthermore, the water pump pulley groove axial position and circle run-out measuring device also comprises a base driving mechanism used for driving the movable base to move back and forth, the base driving mechanism comprises a screw rod support and a screw rod rotatably installed on the screw rod support, and a threaded hole used for being in threaded fit with the screw rod is formed in the movable base.

The beneficial effects are that: the screw rod of the base driving mechanism can be used for enabling the movable base to slide along the guide rail in a labor-saving manner, and the structure is simple and the manufacturing cost is low.

Drawings

FIG. 1 is a schematic diagram illustrating a result of fixing a water pump pulley and a pump base on a measuring tool in the prior art;

FIG. 2 is a schematic structural view of the water pump pulley groove axial position and circular run-out measuring device of the present invention (run-out measuring table and part of bolt assembly are not shown);

FIG. 3 is a schematic structural view of the water pump pulley groove axial position and another view angle of the circular run-out measuring device of the present invention (the run-out measuring table and a portion of the bolt assembly are not shown);

FIG. 4 is a schematic view of the push-pull clamp and nut of FIG. 3 (with the threaded segment obscured by the nut);

FIG. 5 is a schematic structural view from another perspective of the push-pull clamp and nut of FIG. 3 (the threaded segment is obscured by the nut);

FIG. 6 is a schematic view of the axial position and circular run-out measuring device of the water pump pulley groove of the present invention in a state of being calibrated by a standard component when in use;

FIG. 7 is a schematic view of the water pump pulley groove axial position and circular run-out measuring device of the present invention in a state of measuring a water pump pulley;

in the figure: 1. a water pump pulley; 2. a pump mount; 3. measuring a tool; 4. a pulley groove; 5. a forward and backward movement seat; 6. a left and right moving seat; 7. front and rear bases; 8. a left base and a right base; 9. a guide rail; 10. a clamping block; 11. locking the screw rod; 12. locking the nut; 13. locking the handle; 14. a screw rod; 15. a screw rod support; 16. a hand wheel; 17. a push-pull rod; 18. push-pull type clamp; 181. installing a threaded sleeve; 182. a guide bar; 183. a T-shaped connecting plate; 184. pushing and pulling the crank arm; 19. a mounting seat; 22. clamping a meter seat; 23. an axial position measuring gauge; 231. a measuring head sleeve; 24. a compression spring; 25. a lock pin seat; 251. an L-shaped lock hole; 26. a lock pin; 261. a locking pin cap; 262. inserting and mounting sections; 263. a stop pin; 27. a measuring rod base; 28. a measuring rod; 29. positioning the strip; 30. a measuring platform; 31. a positioning table; 32. and (4) standard parts.

Detailed Description

The present invention will be described in further detail with reference to examples.

The concrete embodiment 1 of the water pump pulley groove axial position and circle run-out measuring device of the utility model:

as shown in fig. 2 and 3, the water pump pulley groove axial position and circular runout measuring device of the present invention includes a movable base, a front and rear movable base 5, a left and right movable base 6, and a movable base locking structure, wherein the movable base includes a front and rear base 7 and a left and right base 8, two guide rails 9 arranged along the front and rear direction are provided below the front and rear base 7, the guide rails 9 enable the front and rear bases 7 to slide along the front and rear direction, the upper side surfaces of the front and rear bases 7 are provided with the guide rails 9 arranged along the left and right direction, and the guide rails 9 enable the guide rails 9 above the front and rear bases 7 to slide along the left and right direction.

A guide rail 9 extending in the front-rear direction is provided on the upper portion of the left and right base 8, the front-rear traveling carriage 5 can slide in the front-rear direction via the guide rail 9, a guide rail 9 extending in the left-right direction is provided on the upper portion of the front-rear traveling carriage 5, and the left and right traveling carriages 6 can slide in the left-right direction via the guide rail 9.

As shown in fig. 3, the movable base locking structure includes clamping blocks 10, locking screws 11 and locking nuts 12, the clamping blocks 10 are cuboid structures and fixed on the front end surfaces of the front and rear bases 7, each of the left and right sides of each of the guide rails 9 has one clamping block 10 to clamp the guide rail 9 for sliding of the front and rear bases 7, the locking screws 11 are mounted on the clamping blocks 10 on the left and right sides of the guide rails 9 in a penetrating manner, the locking nuts 12 can tighten the clamping blocks 10 to clamp the guide rails 9 so as to fix the front and rear bases 7 on the guide rails 9, in order to more conveniently control the locking process and the unlocking process, locking handles 13 are fixed on the outer peripheral surfaces of the locking nuts 12, and the rotation of the locking nuts 12 can be controlled by rotating the locking handles 13.

In this embodiment, the base driving mechanism is used to drive the front and rear bases 7 to move, specifically, as shown in fig. 2 and 3, the base driving mechanism includes a lead screw support 15 and a lead screw 14 rotatably mounted on the lead screw support 15 through a bearing, the lead screw support 15 is fixed on the front side of the front and rear bases 7, and a threaded hole in threaded fit with the lead screw 14 is formed in the front end surface of the front and rear bases 7. In order to more conveniently rotate the screw rod 14, a hand wheel 16 is further connected to the screw rod 14, and the screw rod 14 can be driven to rotate by rotating the hand wheel 16 so as to drive the front base 7 and the rear base 7 to move back and forth.

As shown in fig. 2, 4 and 5, the front and rear bases 7 are provided with a push-pull mechanism for driving the left and right bases 8 to slide in the left and right directions, specifically, the push-pull mechanism includes a push-pull rod 17, a left and right base locking structure and a mounting seat 19, the push-pull rod 17 is fixed on the right end surface of the left and right bases 8, the mounting seat 19 is fixed on the right end surface of the front and rear bases 7, the mounting seat 19 includes a bottom plate and an inverted T-shaped vertical plate mounted on the bottom plate, the left and right base locking structure is a push-pull clamp 18, the push-pull clamp 18 is a prior art, in this embodiment, the push-pull clamp 18 is a GH-36202M type clamp of GOODHAND company, the push-pull clamp 18 is mounted on the vertical plate of the mounting seat 19, the specific structure is as shown in fig. 4 and 5, the push-pull clamp 18 includes a mounting screw sleeve 181, a guide rod 182, a T-shaped connecting plate 183 and a turning arm 184, the mounting screw sleeve 181 includes a screw thread section provided with threads on the outer peripheral surface (the screw section is shielded in fig. 4 and 5) The installation screw sleeve 181 is matched with a nut to fix the push-pull type clamp 18 on a vertical plate of the installation seat 19, the left end of the guide rod 182 passes through the installation screw sleeve 181 and is fixedly connected with the push-pull rod 17, the push-pull connecting lever 184 is L-shaped and comprises a handle section and a hinge section, the hinge section is provided with a tail end hinge point and a middle hinge point, the tail end hinge point is hinged with the right end of the guide rod 182, and two ends of the T-shaped connecting plate 183 are hinged with the middle hinge point of the hinge section and a nut of the installation screw sleeve 181. The number of the T-shaped connecting plates 183 is two, and pin shafts penetrate through holes at the vertical ends of the two T-shaped connecting plates 183.

The push-pull rod 17 has a left limit position and a right limit position, when the push-pull crank arm 184 is rotated to the limit position in the direction close to the hand wheel 16, the push-pull rod 17 moves rightwards to the right limit position, and the left base 8 and the right base 8 are pulled to the rightmost side; when the push-pull crank arm 184 is rotated to the extreme position in the direction away from the hand wheel 16, the push-pull rod 17 moves to the left extreme position, and the left and right bases 8 are pulled to the leftmost side. When the push-pull rod 17 is located at the left limit or the right limit, the two hinge points of the T-shaped connecting plate 183 and the hinge point on the guide rod 182 are located at the same straight line, and the left and right bases 8 are locked by the push-pull type clamp 18 without moving the push-pull crank arm 184, and cannot move left and right. In the process of installing the workpiece to be measured, the left base 8 and the right base 8 are pulled to the rightmost side, so that the collision between the measuring device and the workpiece to be measured can be avoided, and after the workpiece to be measured is installed in place, the left base 8 and the right base 8 are pulled to the leftmost side by using the push-pull mechanism when measurement is started.

As shown in fig. 2 and 3, a clamp gauge seat 22 is fixed to the front end surface of the guide rail 9 mounting plate of the left and right bases 8 by bolts, the clamp gauge seat 22 is L-shaped, an axial position measuring gauge 23 is fixed to the vertical section of the clamp gauge seat 22, the end of the position measuring head of the axial position measuring gauge 23 abuts against the front end surface of the front and rear moving seat 5, and when the front and rear moving seat 5 moves, the position of the end of the position measuring head of the axial position measuring gauge 23 can be changed, so that the number of indications of the axial position measuring gauge 23 changes. In this embodiment, the axial position measuring gauge 23 is a digital display micrometer, specifically, a digital display micrometer with model 543 and 551 manufactured by Mitutoyo corporation.

As shown in fig. 2 and 3, a passing gauge holder 22 is also fixed on the right end face of the front and rear moving seat 5, and a runout measuring gauge (the runout measuring gauge is not shown in the drawings) is fixed on the gauge holder 22, in this embodiment, the runout measuring gauge is also a digital micrometer of 543 and 551 type manufactured by Mitutoyo corporation, the end of a runout measuring head of the runout measuring gauge abuts against the right end face of the left and right moving seat 6, a compression spring 24 is further sleeved on the outer peripheral surface of the runout measuring head, the left end of the compression spring 24 also abuts against the right end face of the left and right moving seat 6, the right end of the compression spring 24 abuts against the vertical section of the gauge holder 22, and the compression spring 24 is used for applying an elastic force to the left and right moving seats 6 to make the left and right moving seats 6 slide leftward along the guide rail 9.

As shown in fig. 2 and 3, a lock pin 26 assembly is fixed on the upper side surface of the left and right movable base 6, the lock pin 26 assembly includes a lock pin base 25 and a lock pin 26, the lock pin base 25 has a through hole, the lock pin 26 includes a lock pin cap 261 positioned outside the lock pin base 25 and an insertion section 262 inserted in the through hole, the lock pin cap 261 has a diameter larger than that of the insertion section 262 and positioned outside the lock pin base 25 to control the lock pin 26, an L-shaped lock hole 251 is provided on the outer circumferential surface of the lock pin base 25, a stopper pin 263 inserted in the L-shaped lock hole 251 is provided on the outer circumferential surface of the insertion section 262 of the lock pin 26, insertion holes communicating with the through hole of the lock pin base 25 are provided on both the left and right movable base 6 and the front and rear movable base 5, when the stopper pin 263 of the lock pin 26 is positioned in the vertical section of the L-shaped lock hole 251, the lower end of the lock pin 26 is inserted in the lock insertion hole of the front and rear movable base 5, at this time, the left and right movable base 6 and front and rear movable base 5 are locked together, the locking assembly is located at the locking position, at this time, the locking pin 26 is controlled to lift up and rotate through the locking pin cap 261, so that the stop pin 263 of the locking pin 26 enters the horizontal section of the L-shaped locking hole 251, the locking pin 26 is moved out of the locking jack of the front and rear moving seat 5, the left and right moving seat 6 and the front and rear moving seat 5 are unlocked, and the locking pin 26 assembly is located at the unlocking position. When the lock pin 26 assembly is in the locking position, the left-right moving seat 6 and the front-back moving seat 5 are locked together, so that the situation that the compression spring 24 pushes the left-right moving seat 6 to move back and forth before formal measurement can be avoided, and the accidental collision of the measuring device can be avoided.

A measuring rod seat 27 extending in the left-right direction is fixed on the upper side surface of the left-right moving seat 6, the cross section of the measuring rod seat 27 is shaped like a Chinese character 'ji', mounting holes are arranged on the front rectangular prism table and the rear rectangular prism table of the measuring rod seat 27, and bolts for fixing the measuring rod seat 27 on the upper side surface of the left-right moving seat 6 are arranged in the mounting holes in a penetrating manner. The middle rectangular boss of the measuring rod seat 27 is provided with a measuring rod 28 through hole extending along the left-right direction, the measuring rod 28 is arranged in the measuring rod 28 through hole in a penetrating mode, both ends of the measuring rod 28 are conical, and the conical end portion of the measuring rod 28 is inserted into the belt pulley groove 4. In order to prevent the measuring rod 28 from sliding back and forth during use, two threaded holes which are the same as the through holes of the measuring rod 28 are formed in the rear side surface of the boss in the middle of the measuring rod seat 27, and a jack screw for jacking the measuring rod 28 to prevent the measuring rod 28 from moving is arranged in each threaded hole in a penetrating mode. In which both ends of the measuring rod 28 are conical, when one end for measurement is worn, the other end can be used for measurement after the positions of both ends are turned. In order to position the measuring rod base 27, a positioning structure is arranged on the upper side surface of the left and right moving base 6, the positioning structure is specifically a positioning strip 29 extending along the left and right direction, a positioning groove matched with the positioning strip 29 is arranged on the lower bottom surface of the measuring rod base 27, when the measuring rod base 27 is installed, the positioning strip 29 can accurately position the measuring rod base 27, and the measuring rod base 27 and a measuring rod 28 on the measuring rod base 27 are prevented from deflecting in the left and right direction.

When in use, as shown in fig. 6, a positioning table 31 for positioning the water pump pulley 1 is fixed on the measuring platform 30, then the measuring device of the present invention is fixed on the measuring platform 30 at a position close to the positioning table 31, so as to ensure that the measuring rod 28 on the measuring device extends in the left-right direction, and the front-rear moving seat 5 and the left-right moving seat 6 are locked together, at this time, the left-right base 8 is pulled to the extreme position rightwards by using the push-pull mechanism, then the standard component 32 with the V-shaped groove is fixed on the positioning table 31, then the left-right base 8 is pulled to the extreme position leftwards by using the push-pull mechanism to be close to the standard component 32, the front-rear moving seat 5 and the left-right moving seat 6 are unlocked, then the conical end of the measuring rod 28 is inserted into the bottom of the V-shaped groove, and zero calibration is performed on the axial position measuring meter 23 and the run-out measuring meter. In the process, if the position deviation of the measuring rod 28 is large, which causes inconvenience in performing zero calibration, the positions of the front and rear bases 7 can be adjusted by the hand wheel 16 to adjust the measuring rod 28 to a proper position, and then zero calibration is performed again.

After the zero calibration is completed, the left and right bases 8 are pulled rightwards to the limit position by the push-pull mechanism, the front and rear moving base 5 and the left and right moving base 6 detach the standard block from the positioning table 31, as shown in fig. 7, the water pump pulley 1 and the pump base 2 to be tested are fixed on the positioning table 31, then the left and right bases 8 are pulled leftwards to the limit position by the push-pull mechanism to be close to the water pump pulley 1 and the pump base 2 to be tested, under the pushing of the compression spring 24, the left and right moving base 6 drives the measuring rod 28 to be close to the pulley groove 4, so that the end of the measuring rod 28 is inserted into the last groove of the pulley groove 4, at this time, because the front and rear moving base 5 can freely slide in the front and rear direction, when the end of the measuring rod 28 contacts with the pulley groove 4 in the process of compressing the spring 24, the end of the measuring rod 28 can adaptively move forwards and backwards until being inserted into the groove bottom, at this time, the displacement of the end of the measuring rod 28 in the front and rear direction will drive the front and rear moving base 5 to move, and then the end position measuring rod 28 of the axial position measuring gauge 23 abutting against the front end face of the front-rear moving seat 5 will also move, so that the axial position measuring gauge 23 displays the displacement of the end of the measuring rod 28, and the distance between the position of the reference hole and the last groove of the pulley groove 4 can be obtained by combining the standard parameters of the standard block, and further the axial position data of the pulley groove 4 can be obtained.

After obtaining the axial position data of the pulley groove 4, the pulley is rotated, the measuring rod 28 with the end abutting against the bottom of the pulley groove 4 reflects the circular runout of the pulley groove 4 in a left-right reciprocating movement mode, because the measuring rod 28 is fixed with the left-right moving seat 6, the left-right moving seat 6 also reciprocates left-right under the action of the compression spring 24 and the measuring rod 28, and then the runout measuring head of the runout measuring meter abutting against the right end face of the left-right moving seat 6 also reciprocates left-right, so that the runout measuring meter displays the circular runout of the pulley groove 4.

During disassembly, in order to avoid the influence on disassembly caused by the fact that the end part of the measuring rod 28 is always inserted into the belt pulley groove 4, the front and rear moving seat 5 and the left and right moving seats 6 are firstly locked into a whole by the aid of the lock pin 26 assembly, and then the left and right bases 8 are pulled to the right to limit positions by the aid of the push-pull mechanism, so that the push-pull mechanism drives the left and right bases 8 to be far away from the water pump belt pulley 1. Other measuring tools are not needed in the whole measuring process, and the measuring efficiency is high.

When workpieces of different models and sizes need to be detected, different specification positioning tables and standard blocks are selected for use, the standard blocks are fixed on the corresponding positioning tables, the locking handle is rotated to enable the clamping blocks on the front base and the rear base not to clamp the guide rail, the positions of the front base and the rear base are adjusted through the rotating hand wheel to adjust the position of the measuring rod, and after the adjustment is completed, the locking handle is rotated reversely, so that the clamping blocks on the front base and the rear base clamp the guide rail to fix the positions of the front base and the rear base.

The concrete embodiment 2 of the water pump pulley groove axial position and circular run-out measuring device of the utility model: in embodiment 1, the movable base includes a front and rear base and left and right bases that can be guided to slide, and the position of the measuring stick can be adjusted by the front and rear base and the left and right bases before measurement. Different from the embodiment 1, in the embodiment, the movable base can only slide back and forth in a guiding manner, and when the movable base is used, the measuring device is prevented from colliding with a workpiece to be measured or the positioning table by reasonably arranging the relative positions of the measuring device and the positioning table.

The concrete embodiment 3 of the water pump pulley groove axial position and circle run-out measuring device of the utility model: in embodiment 1, the elastic member is a spring compression spring, and the compression spring is sleeved on the periphery of the jumping measurement head. Different from the embodiment 1, in the embodiment, the elastic member is elastic rubber, and the elastic rubber is sleeved on the periphery of the jumping measurement head.

The concrete embodiment 4 of the water pump pulley groove axial position and circle run-out measuring device of the utility model: in embodiment 1, the elastic member is a compression spring, the compression spring is sleeved on the periphery of the bounce measurement head, and one end of the compression spring is pressed against the right end surface of the left and right moving seats, so as to apply an elastic force to the left of the left and right moving seats. Unlike embodiment 1, in this embodiment, the elastic member is a tension spring, one end of the tension spring is fixed to the left end surface of the left and right moving base, and the other end of the tension spring is fixed to the left end surface of the front and rear moving base, and the tension spring can pull the left and right moving base to move leftward.

The concrete embodiment 5 of the water pump pulley groove axial position and circle run-out measuring device of the utility model: in embodiment 1, the locking structure is a lock pin assembly, and when the stop pin is located in the horizontal section of the L-shaped locking hole, the lock pin assembly is located in the unlocking position, and when the stop pin is located in the vertical section of the L-shaped locking hole, the lock pin is inserted into the insertion hole of the front and rear movable seat to be located in the locking position. The difference from the embodiment 1 is that, in this embodiment, the locking structure is a bolt, the front and rear moving seat is provided with a blind hole for placing the bolt, when the bolt is inserted into the insertion holes of the left and right moving seat and the front and rear moving seat, the bolt locks the left and right moving seat and the front and rear moving seat together, the bolt is in a locking position, and when the bolt is pulled out and put into the blind hole, the bolt is in an unlocking position.

The concrete embodiment 6 of the water pump pulley groove axial position and circle run-out measuring device of the utility model: in embodiment 1, the two ends of the measuring rod have the same structure, are both conical ends, and are both used for being inserted into the pulley grooves. Different from the embodiment 1, in the embodiment, the left end of the measuring rod is a conical end, the right end of the measuring rod is a cylindrical end with the same diameter as the rod body, and only the left end of the measuring rod is used for being inserted into the belt pulley groove. In other embodiments, the end of the measuring rod for insertion into the pulley groove is needle-like in configuration.

The concrete embodiment 7 of the water pump pulley groove axial position and circle run-out measuring device of the utility model: in embodiment 1, the positioning structure for positioning the measuring rod base is a positioning strip extending in the left-right direction, and a positioning groove engaged with the positioning strip is provided on the lower bottom surface of the measuring rod base. Different from embodiment 1, in this embodiment, the positioning structure includes two positioning pins arranged in the left-right direction, and a positioning pin hole matched with the two positioning pins is provided on the lower bottom surface of the measuring rod base.

The concrete embodiment 8 of the water pump pulley groove axial position and circle run-out measuring device of the utility model: in embodiment 1, both the jitter measuring gauge and the axial position measuring gauge are digital display dial gauges. Different from the embodiment 1, in the embodiment, the jitter measuring meter and the axial position measuring meter are digital display dial indicators. In other embodiments, the runout measuring meter may be a dial indicator or a dial indicator, and the axial position measurement may be a dial indicator or a dial indicator.

The concrete embodiment 9 of the water pump pulley groove axial position and circle run-out measuring device of the utility model: in embodiment 1, the outer portion of the pulsation measuring head of the pulsation measuring gauge is sleeved with a compression spring, and the outer portion of the position measuring head of the axial position measuring gauge is not sleeved with a compression spring. In this embodiment, the outside of the position measuring head of the axial position measuring meter is also sleeved with a compression spring, one end of the compression spring abuts against the front and rear moving seat, the other end of the compression spring abuts against the meter clamping seat, and after the measurement is completed, the compression spring can push the front and rear moving seat to reset.

The concrete embodiment 10 of the water pump pulley groove axial position and circle run-out measuring device of the utility model: the left and right base locking structure in example 1 is a push-pull type clamp. The difference between the locking structure and the locking structure of the left base and the right base is the locking rod, the push-pull rod is provided with a locking rod hole for the locking rod to be inserted into, the front base and the rear base are provided with two insertion holes, when the left base and the right base are positioned at a left limit position or a right limit position, the two insertion holes respectively correspond to the locking rod hole, and the push-pull rod can be locked to further lock the left base and the right base by inserting the locking rod into the locking rod hole and the insertion holes.

Claims (10)

1. The water pump pulley groove axial position and circular runout measuring device is characterized by comprising a guide rail (9), a movable base and a movable base locking structure, wherein the guide rail (9) is fixedly assembled on a measuring platform (30), the movable base is in front-back guide and movable fit with the guide rail (9), the movable base locking structure is used for locking the movable base on the guide rail (9) in the front-back direction after the front-back position of the movable base is determined, the water pump pulley groove axial position and circular runout measuring device further comprises a front-back movable seat (5) and a left-right movable seat (6), the front-back movable seat (5) is in front-back guide and movable assembly on the movable base, the left-right movable seat (6) is in left-right guide and movable assembly on the front-back movable seat (5), a measuring rod (28) inserted into a pulley groove (4) is fixed on the left-right movable seat (6), an axial position measuring meter (23) used for measuring the displacement of the front and rear moving seats (5) to calculate the axial position of the pulley groove (4) is arranged on the moving base, a position measuring head of the axial position measuring meter (23) can be in contact with the front and rear moving seats (5), and a runout measuring meter used for measuring the circular runout of the pulley groove (4) is arranged on the front and rear moving seats (5); the jumping measuring head of the jumping measuring meter can be contacted with the left and right moving seats (6); an elastic part used for applying elastic force to the left and right moving seats (6) so as to enable the measuring rod (28) to be propped against the bottom of the belt pulley groove (4) is arranged between the front and rear moving seats (5) and the left and right moving seats (6).

2. The water pump pulley groove axial position and circle run-out measuring device of claim 1, characterized in that, the moving base comprises a front base (7) and a rear base (7) and a left base (8) and a right base (8), the front base (7) and the rear base (7) are matched with the guide rail (9) in a front-and-back movement mode, the left base (8) and the right base (8) are assembled on the front base (7) and the rear base (5) in a left-and-right direction in a guiding mode, and the moving base locking structure is used for locking the front base (7) and the rear base (7) of the moving base on the guide rail (9).

3. The water pump pulley groove axial position and circular run-out measuring device according to claim 2, characterized in that a push-pull mechanism is arranged on the front base (7) and the rear base (7) of the movable base, the push-pull mechanism is used for driving the left base (8) and the right base (8) to slide in the left-right direction, the push-pull mechanism comprises a push-pull rod (17) connected with the left base (8) and the right base (8), the push-pull rod (17) has a left limit position and a right limit position, and the push-pull mechanism further comprises a left base locking structure for locking the push-pull rod (17) to lock the left base (8) and the right base (17) when the push-pull rod (17) is at the left limit position and the right limit position.

4. The water pump pulley groove axial position and circle run-out measuring device of any one of claims 1 to 3, characterized in that the elastic member is a compression spring (24), and the compression spring (24) is sleeved on the periphery of the run-out measuring head.

5. The water pump pulley groove axial position and circle run-out measuring device of any one of claims 1 to 3, characterized in that the left and right movable base (6) is provided with a locking structure having a locking position and an unlocking position, the locking structure locks the left and right movable base (6) and the front and rear movable base (5) together, and the left and right movable base (6) and the front and rear movable base (5) can slide relatively in the unlocking position.

6. The water pump pulley groove axial position and circular runout measuring device according to claim 5, wherein the locking structure is a lock pin assembly, the lock pin assembly comprises a lock pin seat (25) and a lock pin (26), the lock pin seat (25) has a through hole, the lock pin (26) is inserted into the through hole of the lock pin seat (25), the lock pin seat (25) is fixed on the left and right moving seat (6), the left and right moving seat (6) and the front and rear moving seat (5) are provided with insertion holes opposite to the through hole of the lock pin seat (25), the outer peripheral surface of the lock pin seat (25) is provided with an L-shaped lock hole (251), the outer peripheral surface of the lock pin (26) is provided with a stop pin (263) for inserting into the L-shaped lock hole (251), when the stop pin (263) is located in the horizontal section of the L-shaped lock hole (251), the lock pin assembly is located in the unlocking position, when the stop pin (263) is located in the vertical section of the L-shaped lock hole (251), the lock pin (26) is inserted into an insertion hole on the front and rear moving seat (5) to be in a locking position.

7. The water pump pulley groove axial position and circle run-out measuring device according to any one of claims 1 to 3, characterized in that the left and right moving seats (6) are provided with measuring rod seats (27), the measuring rod (28) is fixed on the measuring rod seats (27), and the left and right moving seats (6) are provided with positioning structures for positioning the measuring rod seats (27).

8. The water pump pulley groove axial position and circle run-out measuring device according to any one of claims 1 to 3, characterized in that both ends of the measuring rod (28) are conical tips which can be inserted into the pulley groove (4), and the measuring rod (28) is detachably fixed on the left and right movable seats (6).

9. The water pump pulley groove axial position and circle run-out measuring device of any one of claims 1 to 3, characterized in that, the moving base locking structure comprises a clamping block (10) and a locking screw (11) and a locking nut (12) which are connected together by screw threads, the clamping block (10) is fixed on the moving base and is positioned at two sides of the guide rail (9), the locking screw (11) is arranged on the clamping block (10) in a penetrating way, and the locking screw (11) and the locking nut (12) can tighten the clamping block (10) to clamp the guide rail (9).

10. The water pump pulley groove axial position and circle run-out measuring device as claimed in any one of claims 1 to 3, characterized in that the water pump pulley groove axial position and circle run-out measuring device further comprises a base driving mechanism for driving the movable base to move back and forth, the base driving mechanism comprises a screw rod support (15) and a screw rod (14) rotatably mounted on the screw rod support (15), and the movable base is provided with a threaded hole for being in threaded fit with the screw rod (14).

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