CN110646135A - Horizontal push-pull dynamometer detector - Google Patents
Horizontal push-pull dynamometer detector Download PDFInfo
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- CN110646135A CN110646135A CN201911104796.4A CN201911104796A CN110646135A CN 110646135 A CN110646135 A CN 110646135A CN 201911104796 A CN201911104796 A CN 201911104796A CN 110646135 A CN110646135 A CN 110646135A
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- 238000001514 detection method Methods 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 description 22
- 238000013461 design Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
Abstract
The invention discloses a horizontal push-pull dynamometer detector, which aims to solve the problem of detecting a push-pull dynamometer dependence force standard machine at present, and comprises a screw rod movement system (1), a rack (2), a centering connecting device (3), a push-pull dynamometer clamp system (4) and a linear motor movement system (5); the machine frame (2) is installed on a foundation through a base, the screw rod motion system (1) is installed on a vertical supporting wall of the machine frame (2) through 4 guide rail bases (9) and 2 bearing bases (10), the linear motor motion system (5) is installed at the left end of the base of the machine frame (2) through a linear motor bottom plate (26), the push-pull dynamometer clamp system (4) is installed on the linear motor motion system (5) through a push-pull dynamometer base (17), one end of the centering connection device (3) is connected with the push-pull dynamometer base (17), and the other end of the centering connection device is connected with a screw rod nut base (12) in the screw rod motion system (1).
Description
Technical Field
The invention relates to a detection device belonging to the field of measurement and detection, in particular to a horizontal push-pull dynamometer detection machine.
Background
Various domestic and foreign references rarely mention some related mechanical structures in the metering detection field, the design takes a horizontal push-pull force meter detection mechanism rarely seen in the market as main research content, and provides a related mechanical mechanism for realizing technical requirements aiming at the technical requirements and national standards in the aspect of push-pull force detection, so that the design has advancement and practical significance, and has an important promotion effect on further design research of related metering detection devices and tools.
The detection of a common push-pull force meter is limited by a force standard machine, but the force standard machine is large in size, high in cost and inconvenient to operate.
The horizontal push-pull dynamometer detection machine adopts a linear motor and an s-shaped force sensor to replace a force standard machine, and realizes the detection of the push-pull dynamometer.
Disclosure of Invention
The invention aims to solve the technical problem of detecting a push-pull dynamometer dependence force standard machine in the prior art, and provides a horizontal push-pull dynamometer detector.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme: the horizontal push-pull dynamometer detection machine comprises a screw rod movement system, a rack, a centering connection device, a push-pull dynamometer clamp system and a linear motor movement system;
the machine frame is installed on a horizontal foundation through a base, the screw rod motion system is installed on a vertical supporting wall of the machine frame through a servo motor base, 4 guide rail bases with the same structure and 2 bearing bases with the same structure, the linear motor motion system is installed at the left end of the base in the machine frame through a linear motor bottom plate, the push-pull dynamometer clamp system is installed at the top end of a frame in the linear motor motion system through a push-pull dynamometer base, one end of the centering connecting device is connected with the push-pull dynamometer base in the push-pull dynamometer clamp system, and the other end of the centering connecting device is connected with a screw rod nut base in the screw rod motion system.
The frame in the technical scheme also comprises 2 right-angled triangle rib plates with the same structure; the vertical supporting wall is a rectangular plate type structural member, the upper end and the lower end of a longitudinal symmetrical line of the vertical supporting wall are provided with 2 pairs of bearing base threaded through holes with the same structure for mounting the bearing base, and the connecting lines of the 2 pairs of bearing base threaded through holes with the same structure are mutually parallel; 4 pairs of guide rail base threaded through holes with the same structure are symmetrically arranged on two sides of 2 pairs of bearing base threaded through holes with the same structure, connecting lines of 2 pairs of guide rail base threaded through holes respectively positioned at the upper end and the lower end of the vertical supporting wall are parallel to each other, 2 pairs of guide rail base threaded through holes with the same structure, which are positioned at the upper end of the vertical supporting wall and are used for installing 2 guide rail bases with the same structure, are positioned above 1 pair of bearing base threaded through holes with the same structure, 2 pairs of guide rail base threaded through holes with the same structure, which are positioned at the lower end of the vertical supporting wall and are used for installing other 2 guide rail bases with the same structure, are positioned above the other 1 pair of bearing base threaded through holes with the same structure, and 1 pair of servo motor base threaded through holes with the same structure are arranged in the middle of the upper parts of 2 pairs of guide rail base threaded through holes with the same structure, which are positioned at the upper end of the vertical A motor base threaded hole of the seat;
the base is a rectangular plate type structural member, the width of the base is equal to that of the vertical supporting wall, the length of the base is greater than that of the vertical supporting wall, 6 base through holes with the same structure are formed in the left end of the base, and the 6 base through holes with the same structure are aligned with the 6 motor bottom plate through holes with the same structure in the linear motor bottom plate;
the bottom end of the vertical supporting wall is vertically connected with the right end of the base, and 2 right-angled triangular rib plates with the same structure are symmetrically arranged between the right side of the vertical supporting wall and the upper surface of the base along the longitudinal symmetry line of the base and are fixedly connected.
The screw motion system in the technical scheme further comprises a servo motor, 2 guide rails with the same structure, a screw and a coupler; the guide rail bases with the same structure are fixedly connected to a vertical wall in a rack by bolts, the guide rail bases with the same structure are symmetrically arranged on the vertical supporting wall in a front-back manner relative to a longitudinal symmetry line of the vertical supporting wall, 2 bearing bases with the same structure and one ends provided with angular contact ball bearings are fixedly arranged at the upper end and the lower end of the vertical supporting wall by bolts through the bottom ends of the bearing bases, wherein 1 bearing base is positioned below the middle of 2 guide rail bases with the same structure at the lower end of the vertical supporting wall, the other 1 bearing base is positioned below the middle of 2 guide rail bases with the same structure at the upper end of the vertical supporting wall, namely 2 bearing bases with the same structure are arranged at the position of the longitudinal symmetry line of the vertical supporting wall, and bearing inner ring holes of the bearing bases with the angular contact ball bearings are arranged at the upper end and the lower end of the vertical supporting wall and the 2 ends with, the guide rail through holes on the 2 guide rail bases with the same structure positioned at the upper end of the vertical supporting wall are aligned with the guide rail through holes on the 2 guide rail bases with the same structure positioned at the lower end of the vertical supporting wall; the screw rod is arranged in the inner rings of the angular contact ball bearings on the 2 bearing bases with the same structure, the upper end of the screw rod extends out of the inner rings of the angular contact ball bearings on the bearing bases, the extending end is connected with the output end of the servo motor through a coupler, and the servo motor is arranged above the bearing base at the upper end through the servo motor base; 2 guide rails with the same structure are vertically arranged on 4 guide rail bases with the same structure on two sides of the screw rod and are fixedly connected through screws, the 2 guide rails with the same structure are parallel to the screw rod, the distance between any one guide rail and the screw rod is equal to the distance between any one smooth through hole on the screw nut base and the threaded hole, the screw nut base is sleeved on the 2 guide rails with the same structure and the screw rod and is positioned between the 4 guide rail bases with the same structure and the 2 bearing bases with the same structure, the screw nut base is in threaded connection with the screw rod, and the screw nut base is in sliding connection with the 2 guide rails with the same structure.
The lead screw nut base in the technical scheme is a cuboid-shaped third-order boss structural member, a first-order boss, a second-order boss and a third-order boss are sequentially arranged from bottom to top, the length and the width of the third-order boss are sequentially increased, the width of the second-order boss is equal to that of the third-order boss, a threaded hole meshed with a spiral lead screw is transversely arranged at the center of the first-order boss, light through holes which are sleeved on a guide rail and have the same structure are transversely arranged at two ends of the second-order boss, the diameter of each light through hole is equal to that of the guide rail, and the lead screw nut base is in sliding connection with the guide; and a threaded blind hole for connecting an S-shaped sensor is formed in the center of one side of the third-order boss along the vertical direction.
The centering connecting device in the technical scheme comprises an S-shaped sensor, an S-shaped sensor base, a front connecting rod, a rear connecting rod, a pin and a coupler; the front connecting rod is a cylindrical straight rod piece, one end of the front connecting rod is a semi-circular column head, the other end of the front connecting rod is a small-diameter threaded head, and a pin hole for inserting a pin is formed in the semi-circular column head along the radial direction; the rear connecting rod is a cylindrical straight rod piece, one end of the rear connecting rod is a semi-circular column head, the other end of the rear connecting rod is a small-diameter smooth shaft head, and a pin hole for inserting a pin is formed in the semi-circular column head along the radial direction; the semi-circle column head of the front connecting rod one end and the semi-circle column head of the back connecting rod one end are combined together to form a cylinder, the front connecting rod is aligned with the pin hole on the semi-circle column head of the back connecting rod one end, the pin is inserted into the pin hole aligned with the back connecting rod, the small-diameter screw head of the front connecting rod is connected with one end of the S-shaped sensor through the screw after being inserted into the through hole on the base of the S-shaped sensor, and the small-diameter optical shaft head of the back connecting rod is connected with the stress head of the push-pull.
The push-pull dynamometer clamp system in the technical scheme further comprises a push-pull dynamometer baffle, an eccentric wheel base, a spring, a U-shaped block pressing plate, a spring washer, a supporting rod, an auxiliary supporting rod and a control rod; the push-pull dynamometer base is placed on a frame in a linear motor motion system, the push-pull dynamometer baffle is installed in a dovetail groove on the push-pull dynamometer base, and the eccentric wheel base is installed on the push-pull dynamometer base on the outer side of the push-pull dynamometer baffle through screws; the eccentric wheel is installed at the top end of an eccentric wheel base through screws, an auxiliary supporting rod sleeved with a nut is installed at a threaded hole No. 1 in the middle of a push-pull force meter base, a part of a spherical head in the auxiliary supporting rod is upward in shaft direction, the supporting rod is installed in a through hole No. 2 in the middle of the push-pull force meter base, the nut, a spring and a spring washer are sequentially sleeved on the supporting rod from bottom to top, and the axis of a circular ring head on the supporting rod is in the horizontal direction; the U-shaped block pressing plate is inserted between a spring washer and a spring which are sleeved on the supporting rod, and a groove at the bottom of the U-shaped block pressing plate is buckled on a part of a ball head shaft at the top end of the auxiliary supporting rod; the U-shaped fork body of the control rod is sleeved on the circular ring body head of the support rod; connecting the control rod and the support rod together by bolts; the tested push-pull dynamometer is placed on the push-pull dynamometer base with the front face upward, a stress head at the right end of the push-pull dynamometer is inserted into a hole at the right end of the push-pull dynamometer base, and the eccentric wheel is rotated to push the push-pull dynamometer baffle to prop against the push-pull dynamometer; the ball handle of the control rod is lifted upwards, the rear end of the U-shaped fork body of the control rod presses the U-shaped block pressing plate downwards, and the U-shaped block pressing plate presses the tested push-pull dynamometer.
The push-pull dynamometer base in the technical scheme is composed of a rectangular vertical plate and a rectangular bottom plate, the bottom end of the vertical plate is vertically connected with the left end of the bottom plate, and a through hole for placing a stress head on the push-pull dynamometer is formed in the lower end of the vertical symmetrical center of the vertical plate; the four corners of the bottom plate are respectively provided with a threaded through hole for connecting the frame in the linear motor motion system by using a bolt; the middle part of the bottom plate is provided with a dovetail-shaped trapezoidal groove, the left side of the dovetail-shaped trapezoidal groove is provided with a rectangular groove which is convenient for placing the push-pull force meter baffle into the dovetail-shaped trapezoidal groove, and the front-back width of the rectangular groove is greater than that of the dovetail-shaped trapezoidal groove; the dovetail-shaped dovetail groove is characterized in that 2 threaded blind holes which are identical in structure and used for being connected with an eccentric wheel base are formed in the longitudinal symmetrical center line on the right side of the dovetail-shaped groove, a rectangular boss is arranged on the rear side of the middle of the bottom plate, and 2 threaded through holes which are identical in structure and used for being connected with supporting rods and auxiliary supporting rods are formed in the longitudinal symmetrical center line of the boss.
The control rod in the technical scheme is a fork type structural part and consists of a ball handle and a U-shaped fork body; the ball head handle consists of a ball head body and a cylindrical rod part, the ball head body is connected with one end of the cylindrical rod part in a penetrating way into a whole, and the spherical center of the ball head body is collinear with the rotation axis of the cylindrical rod part; the U-shaped fork body consists of a left fork arm, a right fork arm and a cross beam which have the same structure, wherein one ends of the left fork arm and the right fork arm are provided with a left through hole and a right through hole, and the peripheries of the ends of the left fork arm and the right fork arm, which are provided with the left through hole and the right through hole, are arranged into a plane; the other ends of the left fork arm and the right fork arm are fixedly connected with the same side wall at the two ends of the cross beam, the left fork arm and the right fork arm are parallel to each other and are vertically connected with the cross beam, and the rotation axes of the left through hole and the right through hole are collinear; the other end of the cylindrical rod part of the ball head handle is vertically and fixedly connected with the center of the other side wall of the cross beam, and the rotation axis of the ball head handle is vertically intersected with the rotation axes of the left through hole and the right through hole.
The linear motor motion system in the technical scheme also comprises 2 motor guide rails with the same structure, 2 sliding blocks with the same structure, a stator and a rotor; the linear motor bottom plate is installed on a base of the rack by screws, 2 motor guide rails with the same structure are installed in 2 guide rail grooves with the same structure on the linear motor bottom plate, and two ends of the 2 motor guide rails with the same structure are flush with two ends of the 2 guide rail grooves with the same structure; 2 sliding blocks with the same structure are arranged on 2 motor guide rails with the same structure; the stator is fixed on a linear motor bottom plate in the middle of 2 motor guide rails with the same structure by adopting countersunk screws; the rotor is inserted into the slot along the U-shaped open slot on the frame, and the rotor is fixedly connected with the frame by adopting a countersunk head screw; the frame provided with the rotor is arranged on 2 sliding blocks with the same structure by adopting countersunk screws.
Compared with the prior art, the invention has the beneficial effects that:
1. the force sensor and the push-pull dynamometer in the horizontal push-pull dynamometer detection machine are centered by two connecting shafts with semi-cylindrical interface structures, so that quick centering is realized;
2. according to the horizontal push-pull dynamometer detection machine, the horizontal movement of the push-pull dynamometer is realized through the linear motor, the movement conduction is simplified, the reaction is quicker, and the result is more accurate.
Drawings
The invention is further described with reference to the accompanying drawings in which:
FIG. 1 is an isometric view of the structural components of the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 2 is an isometric projection view of a frame structure used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 3 is an axonometric view of the screw motion system structure used in the horizontal type push-pull dynamometer testing machine according to the present invention;
FIG. 4 is an isometric projection view of the guide rail structure of the screw motion system employed in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 5 is an isometric projection view of the screw nut base structure of the screw motion system employed in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 6 is an exploded perspective view of the centering device used in the horizontal push-pull dynamometer testing machine according to the present invention;
FIG. 7 is an isometric projection view of the push-pull dynamometer clamp system architecture employed in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 8 is an isometric projection view of the push-pull dynamometer base structure of the push-pull dynamometer clamping system employed in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 9 is an isometric projection view of the structural components of the push-pull dynamometer tested in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 10 is an isometric projection of the push-pull dynamometer baffle structure of the push-pull dynamometer clamp used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 11 is an exploded isometric view of the push-pull dynamometer clamp system used in the horizontal push-pull dynamometer tester of the present invention;
FIG. 12 is an isometric projection view of the support rod structure of the push-pull dynamometer clamp system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 13 is an isometric projection view of the auxiliary support bar structure of the push-pull dynamometer clamping system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 14 is an isometric projection view of the U-shaped block platen structure of the push-pull dynamometer clamping system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 15 is an isometric projection view of the control rod structure of the push-pull dynamometer clamping system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 16 is an isometric projection view of the linear motor motion system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 17 is an isometric projection view of the motor guide rail structure of the linear motor motion system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 18 is an isometric view of the screw guide rail base structure of the screw motion system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 19 is an isometric view of the screw bearing mount structure of the screw motion system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 20 is an isometric projection view of the servo motor base structure of the screw motion system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 21 is an isometric view of the screw structure of the screw motion system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 22 is an isometric projection view of the eccentric wheel structure of the push-pull dynamometer clamping system used in the horizontal push-pull dynamometer testing machine of the present invention;
FIG. 23 is an isometric projection view of the eccentric wheel base structure of the push-pull dynamometer clamp system used in the horizontal push-pull dynamometer testing machine of the present invention;
in the figure: 1. the device comprises a screw rod motion system, 2, a rack, 3, a centering connection device, 4, a push-pull dynamometer clamp system, 5, a linear motor motion system, 6, a servo motor, 7, a servo motor base, 8, a guide rail, 9, a guide rail base, 10, a bearing base, 11, a screw rod, 12, a screw rod nut base, 13, an S-shaped sensor, 14, an S-shaped sensor base, 15, a front connecting rod, 16, a rear supporting rod, 17, a push-pull dynamometer base, 18, a push-pull dynamometer baffle, 19, an eccentric wheel, 20, an eccentric wheel base, 21, a U-shaped block pressing plate, 22, a supporting rod, 23, an auxiliary supporting rod, 24, a control rod, 25, a push-pull dynamometer, 26, a linear motor base plate, 27, a motor guide rail, 28, a sliding block, 29, a frame, 30, a stator and 31, a rotor;
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
the vertical paper surface is specified to be shot from front to back, and the front to back is specified to be the front-back direction; the left side of the picture is left, the right side is right, and the left side and the right side are horizontal directions; the picture top is upper, and the below is lower, and from the top down is vertical direction.
Referring to fig. 1, the horizontal push-pull dynamometer detection machine of the present invention includes a screw rod motion system 1, a frame 2, a centering connection device 3, a push-pull dynamometer clamp system 4, and a linear motor motion system 5.
Referring to fig. 2, the frame 2 is a plate type structural member, and the frame 2 is composed of a vertical supporting wall, a base and 2 right-angled triangular rib plates with the same structure;
the vertical supporting wall is a rectangular plate type structural member, the upper end and the lower end of the longitudinal symmetrical line of the vertical supporting wall are provided with 2 pairs of bearing base threaded through holes with the same structure for mounting the bearing base 10, and the connecting lines of the 2 pairs of bearing base threaded through holes with the same structure are parallel to each other; 4 pairs of guide rail base threaded through holes with the same structure are symmetrically arranged on two sides of 2 pairs of bearing base threaded through holes with the same structure, connecting lines of 2 pairs of guide rail base threaded through holes respectively positioned at the upper end and the lower end of the vertical supporting wall are parallel to each other, 2 pairs of guide rail base threaded through holes with the same structure, which are positioned at the upper end of the vertical supporting wall and are used for installing 2 guide rail bases 9 with the same structure, are positioned above 1 pair of bearing base threaded through holes with the same structure, 2 pairs of guide rail base threaded through holes with the same structure, which are positioned at the lower end of the vertical supporting wall and are used for installing other 2 guide rail bases 9 with the same structure, are positioned above the other 1 pair of bearing base threaded through holes with the same structure, and 1 pair of installation servos with the same structure are arranged in the middle of the upper parts of 2 pairs of guide rail base threaded through holes with the same structure, which are used for installing 2 guide rail bases 9 with the same structure A motor base threaded hole of the motor base 7;
the base is a rectangular plate type structural member, the width of the base is equal to that of the vertical supporting wall, the length of the base is greater than that of the vertical supporting wall, 6 base through holes with the same structure are formed in the left end of the base, and the 6 base through holes with the same structure are aligned with the 6 motor bottom plate through holes with the same structure in the linear motor bottom plate 26;
the bottom end of the vertical supporting wall is vertically connected with the left end of the base, and 2 right-angled triangular rib plates with the same structure are symmetrically arranged between the left side of the vertical supporting wall and the upper surface of the base along the longitudinal symmetry line of the base and are fixedly connected;
referring to fig. 3, the screw motion system 1 includes a servo motor 6, a servo motor base 7, 2 guide rails 8 with the same structure, 4 guide rail bases 9 with the same structure, 2 bearing bases 10 with the same structure, a screw 11, a bearing, a coupler and a screw nut base 12;
referring to fig. 4 and fig. 1, the guide rail 8 adopts a stepped shaft with two shaft sections, the diameter of the first shaft section is larger than that of the second shaft section, the first shaft section and the second shaft section both adopt straight rod type optical axes, the rotation axes of the first shaft section and the second shaft section are collinear, 1 guide rail 8 is installed in through holes at the upper ends of 2 guide rail bases 9 with the same structure, a shaft shoulder formed at the joint of the first shaft section and the second shaft section is in contact connection with the upper end face of the guide rail base 9 at the upper end, in order to avoid the up-and-down movement of the guide rail 8, the upper end of the guide rail base 9 is fastened and connected by using bolts;
referring to fig. 5, the screw nut base 12 is a cuboid third-order boss structure, which sequentially includes a first-order boss to a third-order boss from bottom to top, the length and the width of the third-order boss sequentially increase, the width of the second-order boss is equal to that of the third-order boss, a threaded hole engaged with the screw 11 is transversely formed in the center of the first-order boss, optical through holes with the same structure are transversely formed in two ends of the second-order boss, the screw nut base 12 is sleeved on the guide rail 8 through the 2 optical through holes with the same structure, and the screw nut base 12 is in sliding connection with the guide rail 8; a threaded blind hole for connecting the S-shaped sensor 13 is formed in the center of one side of the third-order boss along the vertical direction;
the servo motor 6 is provided with a keyway and has the model of SVGA-04C 11AB, the specification of 0.4KW and the rated rotating speed of 3000 RPM;
referring to fig. 18, the guide rail base 9 is an inverted T-shaped plate-type structural member, and is composed of a base and a support wall, the support wall and the base have the same width, the support wall is vertically connected with the center of the base through the bottom end into a whole, chamfers are arranged at two corners of the top end of the support wall, a support wall through hole for installing the guide rail 8 is arranged at the center of the upper end of the support wall, a rectangular gap communicated with the top end is radially arranged right above the support wall through hole, two clamping holes with collinear rotation axes are arranged on two side walls of the rectangular gap and below the two chamfers, the rotation axes of the two clamping holes and the rotation axis of the support wall through hole are vertically crossed in space, and a screw can be inserted into the two clamping holes and screwed to clamp the guide rail; the two ends of the base are vertically provided with mounting through holes which are used for mounting the guide rail base 9 on the frame 2 by adopting bolts.
Referring to fig. 19, the bearing base 10 and the guide rail base 9 are basically the same structural member, and are composed of a base 1 and a supporting wall 1, and the difference is that a stepped through hole 2 sections are arranged at the center of the upper end of the supporting wall 1, a large-diameter section hole in the stepped through hole 2 sections is used for mounting a bearing, and a small-diameter section hole in the stepped through hole 2 sections is used for mounting a screw 11.
Referring to fig. 20, the servo motor base 7 is an L-shaped plate-type structural member, and is composed of a horizontal large rectangular plate and a vertical small rectangular plate, one end of the horizontal large rectangular plate is perpendicularly connected with one end of the vertical small rectangular plate, 2 mounting through holes are uniformly distributed on the vertical small rectangular plate, the 2 mounting through holes are used for fixing the servo motor base 7 on the frame 2, a central through hole is formed in the central position of the horizontal large rectangular plate, the central through hole is used for mounting an output shaft end of the servo motor 6, 4 bolt through holes with the same structure are formed around the central through hole, and the 4 bolt through holes with the same structure are used for fixedly mounting the servo motor 6;
referring to fig. 21, the screw 11 is a four-stage stepped shaft, the uppermost end of which is a first stage shaft having the smallest diameter and is used for connecting with an output shaft of a motor; the second section shaft has a larger diameter than the first section shaft and a smaller diameter than the third section shaft, and is used for being assembled with a bearing and a bearing base 10; the third section of shaft is a screw part with the largest diameter, is provided with threads, is meshed with a threaded hole of the screw nut base 12, and can control the position of the screw nut base 12 by controlling the rotation of the screw 11; the diameter of the fourth section shaft is the same as that of the second section shaft, and the function is also the same.
The coupling selects MRG-16 rigid coupling;
the bearing adopts an angular contact ball bearing which can bear radial load and axial load simultaneously and can also bear pure axial load.
Referring to fig. 1 to 3, the screw motion system 1 is fixedly connected to a vertical support wall in a rack 2 by 4 guide rail bases 9 with the same structure through M5 bolts, the 4 guide rail bases 9 with the same structure are symmetrically arranged on the vertical support wall in front and back directions relative to a longitudinal symmetry line of the vertical support wall, 2 bearing bases 10 with the same structure and one end provided with angular contact ball bearings are fixedly arranged at the upper end and the lower end of the vertical support wall through M5 bolts at the bottom ends of the bearing bases, 1 bearing base 10 is located below the middle of the 2 guide rail bases 9 with the same structure at the lower end of the vertical support wall, and the other 1 bearing base 10 is located below the middle of the 2 guide rail bases 9 with the same structure at the upper end of the vertical support wall, that is, the 2 bearing bases 10 with the same structure are arranged at a position of the longitudinal symmetry line of the vertical support wall, and is arranged at the upper end of the, The bearing inner ring holes of 2 bearing bases 10 with the same structure and one ends provided with angular contact ball bearings at the lower end are aligned, and the guide rail through holes on 2 guide rail bases 9 with the same structure and positioned at the upper end of the vertical supporting wall are aligned with the guide rail through holes on 2 guide rail bases 9 with the same structure and positioned at the lower end of the vertical supporting wall; the screw rod 11 is arranged in the inner rings of the angular contact ball bearings on the 2 bearing bases 10 with the same structure, the upper end of the screw rod 11 extends out of the inner rings of the angular contact ball bearings on the bearing bases 10, the extending end is connected with the output end of the servo motor 6 through a coupler, and the servo motor 6 is arranged on the upper side of the upper end bearing base 10 through the servo motor base 7; 2 guide rails 8 with the same structure are vertically arranged on 4 guide rail bases 9 with the same structure on two sides of a screw rod 11 and fixedly connected by screws, the 2 guide rails 8 with the same structure are parallel to the screw rod 11, the distance between any guide rail 8 and the screw rod 11 is equal to the distance between any threaded hole and a smooth through hole on a lead screw nut base 12, the lead screw nut base 12 is sleeved on the 2 guide rails 8 with the same structure and the screw rod 11 and is positioned between the 4 guide rail bases 9 with the same structure and 2 bearing bases 10 with the same structure, the lead screw nut base 12 is in threaded connection with the screw rod 11, the lead screw nut base 12 is in sliding connection with the 2 guide rails 8 with the same structure, and the lead screw nut base 12 moves up and down along the 2 guide rails 8 with the same structure and the screw rod 11;
referring to fig. 6, the centering connection device 3 includes an S-shaped sensor 13, an S-shaped sensor base 14, a front connection rod 15, a rear connection rod 16, a pin and a coupler.
The front connecting rod 15 is a cylindrical straight rod, one end of the front connecting rod 15 is a semi-circular column head, the other end of the front connecting rod is a small-diameter threaded head, and a pin hole for inserting a pin is formed in the semi-circular column head along the radial direction.
The rear connecting rod 16 is a cylindrical straight rod, one end of the rear connecting rod 16 is a semi-circular column head, the other end of the rear connecting rod is a small-diameter threaded head, and a pin hole for inserting a pin is radially arranged at the semi-circular column head.
The S-shaped sensor base 14 is a U-shaped structural member, an open slot for placing the S-shaped sensor 13 is formed in the U-shaped opening, and a through hole is formed in the middle of the bottom of the S-shaped sensor base 14;
the coupler is a rigid coupler of MRGS-16 type;
the semi-column head at one end of the front connecting rod 15 and the semi-column head at one end of the rear connecting rod 16 in the centering connecting device 3 are put together to form a whole cylinder, the pin hole on the semi-column head at one end of the front connecting rod 15 and the pin hole at one end of the rear connecting rod 16 are aligned, the pin is inserted into the aligned pin hole of the front connecting rod 15 and the rear connecting rod 16 to connect the two, the small-diameter thread head of the front connecting rod 15 is inserted into the through hole on the S-shaped sensor base 14 and then is connected with one end of the S-shaped sensor 13 in a threaded manner, the small-diameter thread head of the rear connecting rod 16 is connected with the small-diameter thread head of the push-pull dynamometer 25 after the push-pull dynamometer 25 is installed on the push-pull dynamometer base 17 (the connection between the push-pull dynamometer 25 and the push-pull dynamometer base 17 can be explained in the connection and installation of the push-pull dynamometer clamp system 4), the stress head of the push-pull dynamometer 25 extends out from the hole on (ii) a The other end of the S-shaped sensor 13 is connected with a threaded blind hole of the screw nut base 12 through a stud;
referring to fig. 7 and 8, the push-pull dynamometer clamp system 4 includes a push-pull dynamometer base 17, a push-pull dynamometer baffle 18, an eccentric wheel 19, an eccentric wheel base 20, a spring, a U-shaped block pressing plate 21, a spring washer, a supporting rod 22, an auxiliary supporting rod 23 and a control rod 24.
Referring to fig. 9, the push-pull force gauge 25 is a detected piece, and has a rectangular parallelepiped shape, the front side in the drawing is the front side of the push-pull force gauge 25, the front side is provided with an operation key and a display panel, the right side is the top end of the push-pull force gauge 25, a cylindrical head extending from the top end is a force-bearing head interface, and the force-bearing head interface displays numerical values on the display panel under thrust and tension;
referring to fig. 8, the push-pull dynamometer base 17 is composed of a rectangular vertical plate and a rectangular bottom plate, the bottom end of the vertical plate is vertically connected with the left end of the bottom plate, and the lower end of the vertical symmetry center of the vertical plate is provided with a through hole for installing a stress head on the push-pull dynamometer 25 when the push-pull dynamometer 25 is placed;
four corners of the bottom plate are respectively provided with a threaded through hole, and 4 threaded through holes are used for connecting with a frame 29 in the linear motor motion system 5 by bolts; the middle part of the bottom plate is provided with a dovetail-shaped trapezoidal groove, the left side of the dovetail-shaped trapezoidal groove is provided with a rectangular groove, the front width and the rear width of the rectangular groove are larger than those of the dovetail-shaped trapezoidal groove, and the push-pull force meter baffle plate 18 is conveniently placed into the dovetail-shaped trapezoidal groove; 2 threaded blind holes with the same structure are arranged on the longitudinal symmetrical central line on the right side of the dovetail-shaped dovetail groove and are used for connecting the eccentric wheel base 20; a cuboid boss is arranged on the rear side of the middle part of the bottom plate, 2 threaded through holes with the same structure are arranged on the symmetrical central line of the boss in the front-back direction, the threaded through holes on the front side are used for connecting the supporting rod 22, and the threaded through holes on the rear side are used for connecting the auxiliary supporting rod 23;
referring to fig. 10, the push-pull dynamometer baffle 18 is a rectangular plate type structural member, the bottom end of the push-pull dynamometer baffle is provided with an inverted V-shaped sliding block, namely, a dovetail-shaped sliding block, and the dovetail-shaped sliding block at the bottom end is matched and connected with a dovetail-shaped groove on the push-pull dynamometer base 17.
Referring to fig. 11 and 12, the support rod 22 is a T-shaped shaft structure, that is, the support rod 22 includes a support rod body and a torus head, the torus head is installed at the top end of the support rod body, the torus head and the support rod body are fixedly connected to each other in a penetrating manner, the rotation axis of the torus head is perpendicular to the rotation axis of the support rod body, and two end surfaces of the torus head are parallel to each other and perpendicular to the rotation axis of the torus head.
Referring to fig. 13, the auxiliary support rod 23 is a cylindrical straight-bar shaft type structural member, the top end of the auxiliary support rod is provided with a partial sphere head shaft member, so that the auxiliary support rod 23 can be supported vertically with a contact surface through the partial sphere head shaft member at the top end, the middle section of the auxiliary support rod is an optical axis, the lower section of the auxiliary support rod is provided with a threaded shaft, and the diameters of the three sections of shaft members are sequentially small-large-small;
referring to fig. 14, the U-shaped block pressing plate 21 is a plate fork type structural member, the U-shaped block pressing plate 21 is composed of a left yoke, a right yoke and a pressing plate cross beam, the left yoke and the right yoke have the same structure, a groove with a rectangular cross section is formed in the bottom of the U-shaped block pressing plate 21 and runs through from front to back, the width of the groove is equal to the diameter of a part of the ball head shaft in the auxiliary supporting rod 23, and the part of the ball head shaft in the auxiliary supporting rod 23 is installed in the groove running through from front to back without sliding from left to right;
referring to fig. 15, the control rod 24 is a fork-like structural member, the control rod 24 is composed of a ball-end handle and a U-shaped fork body, the bottom surface of the control rod 24 is shown in the figure, and the contact surface between the bottom surface and the U-shaped block pressing plate 21 is a plane, so that the U-shaped block pressing plate 21 can be better attached and pressed;
the ball head handle consists of a ball head body and a cylindrical rod part, the ball head body is connected with one end of the cylindrical rod part in a penetrating way into a whole, and the spherical center of the ball head body is collinear with the rotation axis of the cylindrical rod part;
the U-shaped fork body consists of a left fork arm, a right fork arm and a cross beam which have the same structure, wherein one ends of the left fork arm and the right fork arm are provided with a left through hole and a right through hole, and the peripheries of the ends of the left fork arm and the right fork arm, which are provided with the left through hole and the right through hole, are arranged into a plane; the other ends of the left fork arm and the right fork arm are fixedly connected with the same side wall at the two ends of the cross beam, the left fork arm and the right fork arm are parallel to each other and are vertically connected with the cross beam, and the rotation axes of the left through hole and the right through hole are collinear;
the other end of the cylindrical rod part of the ball head handle is vertically and fixedly connected with the center of the other side wall of the cross beam, and the rotation axis of the ball head handle is vertically intersected with the rotation axes of the left through hole and the right through hole.
Referring to fig. 22, the eccentric wheel 19 is a flat cylinder, a cylindrical handle radially extends from the flat cylinder along the middle position of a generatrix, and a sphere is arranged at the end of the handle for grasping; the cylinder is provided with an optical through hole at the eccentric position;
referring to fig. 23, the eccentric wheel base 20 is divided into an upper part, a middle part and a lower part, the bottom of the eccentric wheel base is a flat cylinder, two smooth through holes are symmetrically arranged on the flat cylinder, the eccentric wheel base 20 can be fixed on the push-pull dynamometer base 17 through bolts, the middle section of the eccentric wheel base is a circular truncated cone, the upper end of the eccentric wheel base is a cylinder with the same diameter as that of the upper end of the circular truncated cone, and the center of the cylinder is provided with a threaded blind hole for fixing the eccentric wheel;
the push-pull dynamometer clamp system 4 is characterized in that a push-pull dynamometer base 17 is horizontally placed on a frame 29 in a linear motor motion system 5, and a push-pull dynamometer baffle 18 is arranged in the middle of a dovetail groove in the push-pull dynamometer base 17; the eccentric wheel base 20 is arranged at the right end of the push-pull dynamometer base 17 through screws; aligning the axis of the through hole of the eccentric wheel 19 with the axis of the threaded hole of the eccentric wheel base 20, placing the eccentric wheel 19 on the eccentric wheel base 20, and fixing the eccentric wheel 19 on the eccentric wheel base 20 by using a screw which is not screwed too tightly, only needing to stabilize the eccentric wheel 19 on the eccentric wheel base 20 and leaving the rotating allowance of the eccentric wheel 19; the auxiliary support rod 23 with the nut sleeved thereon is inserted into the threaded holes at the rear sides of the two through holes in the middle of the push-pull dynamometer base 17 with the sphere head thereof being upward; a nut is placed on front side holes of two through holes in the middle of a bottom plate of a base 17 of the push-pull dynamometer, and the axis of a threaded hole of the nut is superposed with the axis of the through hole; the support rod 22 is sleeved with the spring washer from the lower end, then sleeved with the spring, and then the lower end of the support rod 22 is inserted into the nut and the through hole; the U-shaped block pressing plate 21 is inserted between a spring washer and a spring on the supporting rod 22, and a groove at the bottom of the U-shaped block pressing plate 21 is buckled on a part of a ball head shaft at the top end of the auxiliary supporting rod 23; rotating the support rod 22 to enable the axis of the through hole of the torus head to be in the horizontal direction, and sleeving the U-shaped fork body of the control rod 24 on the torus head of the support rod 22 to enable the axes of the two through holes on the U-shaped fork body of the control rod 24 to be superposed with the axis of the torus head of the support rod 22; inserting the bolts into the aligned through holes and screwing the nuts to connect the control rod 24 and the support rod 22 together; placing a tested push-pull dynamometer 25 on a push-pull dynamometer base 17 with the front face upward, inserting a stress head interface at the top end of the push-pull dynamometer 25 into a hole of a vertical plate on the left side of the push-pull dynamometer base 17, rotating an eccentric wheel 19 to push a push-pull dynamometer baffle 18 to prop against the push-pull dynamometer 25, and fixing four degrees of freedom of the horizontal plane of the push-pull dynamometer 25; the ball handle of the control rod 24 is lifted upwards, the rear end of the U-shaped fork body of the control rod 24 presses the U-shaped block pressing plate 21 downwards, the U-shaped block pressing plate 21 presses the tested push-pull force meter 25, and two degrees of freedom of the push-pull force meter 25 in the vertical direction are limited;
referring to fig. 16, the linear motor motion system 5 includes a linear motor base plate 26, 2 motor guide rails 27 having the same structure, 2 sliders 28 having the same structure, a frame 29, a stator 30, and a mover 31.
The linear motor is a single-side iron-core linear motor with the model number of TB 30S.
The linear motor base plate 26 is a strip-shaped rectangular plate structural member, 2 guide rail through grooves with the same width as that of the motor guide rail 27 and the same structure are symmetrically arranged on the linear motor base plate 26 along the longitudinal direction, the guide rail grooves are inverted V-shaped dovetail grooves, the length of each guide rail through groove is equal to that of the motor guide rail 27, and 3 motor base plate through holes with the same structure and used for mounting bolts are respectively arranged on the outer sides of the 2 guide rail through grooves with the same structure;
referring to fig. 17, the lower end of the motor guide rail 27 of the linear motor motion system 5 is an inverted V-shaped structural member for being installed in a guide rail groove of the linear motor base plate 26; the cross section of the upper end of the motor guide rail 27 is an oval cross section and is a guide rail part for guiding the slide block 28 to move, and the upper end of the motor guide rail 27 is in sliding connection with a guide rail groove on the slide block 28 after being assembled;
the sliding block 28 is a long-strip-shaped straight rod type structural member with a rectangular cross section, and blind holes for connecting with the frame 29 are uniformly formed in the top end of the sliding block 28; the bottom end of the sliding block 28 is provided with a through groove, the structural shape of the through groove is the same as that of the upper end of the motor guide rail 27, and the through groove is connected with the upper end of the motor guide rail 27 in a sliding fit manner;
the frame 29 is a U-shaped groove type structural member, a through U-shaped groove is arranged at the longitudinal center of the frame 29, 2 sliders 28 with the same structure are arranged on the end surfaces of two groove walls of the U-shaped groove, the rotor 31 is arranged in the U-shaped groove, and the frame 29 connects the sliders 28 and the rotor 31; the upper part of the frame 29 has 14 threaded holes, and 4 No. 1 threaded through holes are symmetrically arranged at the long side of the frame 2 and used for connecting the frame 29 and 2 sliding blocks 28 with the same structure into a whole by adopting bolts; no. 2 threaded holes with 6 identical structures are uniformly formed in the middle of the No. 4 threaded holes with 1 identical structure, and the No. 2 threaded holes with 6 identical structures are used for connecting the frame 29 and the rotor 31; 4 No. 3 threaded holes with the same structure are symmetrically arranged at the short side of the frame 2, and the 4 No. 3 threaded holes with the same structure are used for connecting the frame 29 with the push-pull dynamometer base 17;
the linear motor motion system 5 is installed on the base of the frame 2 through a linear motor bottom plate 26 by screws, and 2 motor guide rails 27 with the same structure are installed in 2 guide rail grooves with the same structure on the linear motor bottom plate 26 (namely, the motor guide rails 27 are pushed to enter the guide rail grooves from one side of the guide rail grooves), so that two ends of the 2 motor guide rails 27 with the same structure are flush with two ends of the 2 guide rail grooves with the same structure; 2 sliding blocks 28 with the same structure are arranged on the motor guide rail 27 by the same method; fixing a stator 30 on a linear motor bottom plate 26 in the middle of 2 motor guide rails 27 with the same structure through countersunk screws; inserting the mover 31 into the slot along the U-shaped open slot of the frame 29, and connecting the mover 31 and the frame 29 by using a countersunk head screw; the connection bodies of the frame 29 and the mover 31 are inserted and screwed from the screw holes connecting the frame 29 and the slider 28 by using countersunk screws, and the connection bodies of the frame 29 and the mover 31 are mounted on 2 sliders 28 having the same structure.
After the screw rod motion system 1, the centering connection device 3, the push-pull dynamometer clamp system 4 and the linear motor motion system 5 are connected, a servo motor base 7, four identical guide rail bases 9 and two identical bearing bases 10 in the screw rod motion system 1 are arranged on a vertical supporting wall of the rack 2 through a through hole at the bottom end; the push-pull dynamometer clamp system 4 is arranged on a frame 29 in the linear motor motion system 5 through a push-pull dynamometer base 17 in the push-pull dynamometer clamp system and is connected together through countersunk screws; connecting a threaded hole of a screw nut base 12 of the screw motion system 1 by using a stud, and connecting the other end of the stud with a threaded hole which is not connected with an S-shaped force sensor 13 in the centering connection device 3; connecting a small-diameter threaded head of a rear connecting rod 16 in the centering connecting device 3 with a stress head provided with external threads of a push-pull dynamometer 25 by using a coupler;
the principle of the device is that the linear motor motion system 5 is controlled to drive the push-pull force meter 25 to move forward and backward to generate thrust or pull force, the force is transmitted to the S-shaped sensor 13 through the centering connecting device 3, and whether the push-pull force meter 25 meets the standard or not can be detected by comparing the reading obtained by the S-shaped sensor 13 with the reading on the display screen of the push-pull force meter 25.
Claims (9)
1. A horizontal push-pull dynamometer detection machine is characterized by comprising a screw rod movement system (1), a rack (2), a centering connection device (3), a push-pull dynamometer clamp system (4) and a linear motor movement system (5);
the machine frame (2) is arranged on a horizontal foundation through a base, the screw rod motion system (1) is arranged on a vertical supporting wall of the machine frame (2) through a servo motor base (7), 4 guide rail bases (9) with the same structure and 2 bearing bases (10) with the same structure, the linear motor motion system (5) is arranged at the left end of the base in the machine frame (2) through a linear motor bottom plate (26) in the linear motor motion system, the push-pull dynamometer clamp system (4) is arranged on the top end of a frame (29) in the linear motor motion system (5) through a push-pull dynamometer base (17) in the push-pull dynamometer clamp system, one end of the centering connecting device (3) is connected with a push-pull dynamometer base (17) in the push-pull dynamometer clamp system (4), the other end of the centering connecting device (3) is connected with a screw nut base (12) in the screw motion system (1).
2. The horizontal type push-pull dynamometer detector according to claim 1, wherein the rack (2) further comprises 2 right-angled triangular rib plates with the same structure;
the vertical supporting wall is a rectangular plate type structural member, the upper end and the lower end of a longitudinal symmetrical line of the vertical supporting wall are provided with 2 pairs of bearing base threaded through holes with the same structure for mounting the bearing base (10), and the connecting lines of the 2 pairs of bearing base threaded through holes with the same structure are parallel to each other; 4 pairs of guide rail base threaded through holes with the same structure for installing guide rail bases (9) are symmetrically arranged on two sides of 2 pairs of bearing base threaded through holes with the same structure, connecting lines of 2 pairs of guide rail base threaded through holes respectively positioned at the upper end and the lower end of the vertical supporting wall are parallel to each other, 2 pairs of guide rail base threaded through holes with the same structure for installing 2 guide rail bases (9) with the same structure positioned at the upper end of the vertical supporting wall are positioned above 1 pair of bearing base threaded through holes with the same structure, 2 pairs of guide rail base threaded through holes with the same structure for installing other 2 guide rail bases (9) with the same structure positioned at the lower end of the vertical supporting wall are positioned above the other 1 pair of bearing base threaded through holes with the same structure, and 1 pair of guide rail base threaded through holes with the same structure positioned at the middle of the upper ends of 2 pairs of guide rail base threaded through holes with the same structure for installing 2 guide rail bases (9) with the same structure positioned at the vertical Motor base threaded holes with the same structure are provided with servo motor bases (7);
the base is a rectangular plate type structural member, the width of the base is equal to that of the vertical supporting wall, the length of the base is greater than that of the vertical supporting wall, 6 base through holes with the same structure are formed in the left end of the base, and the 6 base through holes with the same structure are aligned with the 6 motor bottom plate through holes with the same structure in the linear motor bottom plate (26);
the bottom end of the vertical supporting wall is vertically connected with one end of the base, and 2 right-angled triangular rib plates with the same structure are symmetrically arranged between the outer side of the vertical supporting wall and the upper surface of the base along the longitudinal symmetry line of the base and are fixedly connected.
3. The horizontal type push-pull dynamometer detection machine according to claim 1, wherein the screw rod motion system (1) further comprises a servo motor (6), 2 guide rails (8) with the same structure, a screw rod (11) and a coupler;
the guide rail device is characterized in that the 4 guide rail bases (9) with the same structure are fixedly connected to a vertical wall in the rack (2) through bolts, the 4 guide rail bases (9) with the same structure are symmetrically arranged on the vertical supporting wall in a front-back mode relative to a longitudinal symmetry line of the vertical supporting wall, the 2 bearing bases (10) with one ends provided with angular contact ball bearings are fixedly installed at the upper end and the lower end of the vertical supporting wall through bolts at the bottom ends of the bearing bases, wherein 1 bearing base (10) is located below the middle of the 2 guide rail bases (9) with the same structure at the lower end of the vertical supporting wall, the other 1 bearing base (10) is located below the middle of the 2 guide rail bases (9) with the same structure at the upper end of the vertical supporting wall, namely the 2 bearing bases (10) with the same structure are installed at the position of the longitudinal symmetry line of the vertical supporting wall and are installed at the upper end, The bearing inner ring holes of 2 bearing bases (10) with the same structure and one ends provided with angular contact ball bearings at the lower end are aligned, and the guide rail through holes on 2 guide rail bases (9) with the same structure and positioned at the upper end of the vertical supporting wall are aligned with the guide rail through holes on 2 guide rail bases (9) with the same structure and positioned at the lower end of the vertical supporting wall; the screw rod (11) is arranged in inner rings of angular contact ball bearings on 2 bearing bases (10) with the same structure, the upper end of the screw rod (11) extends out of the inner rings of the angular contact ball bearings on the bearing bases (10), the extending end is connected with the output end of the servo motor (6) through a coupler, and the servo motor (6) is arranged above the bearing base (10) at the upper end through a servo motor base (7); 2 guide rails (8) with the same structure are vertically arranged on 4 guide rail bases (9) with the same structure at two sides of a screw rod (11) and are fixedly connected by screws, 2 guide rails (8) with the same structure are parallel to the screw rod (11), wherein the distance between any one guide rail (8) and the screw rod (11) is equal to the distance between any one smooth through hole and the threaded hole on the screw nut base (12), the screw nut base (12) is sleeved on 2 guide rails (8) and screw rods (11) with the same structure, and is arranged between 4 guide rail bases (9) with the same structure and 2 bearing bases (10) with the same structure, the screw nut base (12) is in threaded connection with the screw rod (11), and the screw nut base (12) is in sliding connection with 2 guide rails (8) with the same structure.
4. The horizontal push-pull dynamometer detector of claim 3, wherein the lead screw nut base (12) is a cuboid third-order boss structure, which is a first-order boss, a second-order boss and a third-order boss from bottom to top in sequence, the length and width of the third-order boss are sequentially increased, the width of the second-order boss is equal to that of the third-order boss, a threaded hole engaged with the screw (11) is transversely formed in the center of the first-order boss, light through holes which are identical in structure and sleeved on the guide rail (8) are transversely formed in two ends of the second-order boss, the diameter of each light through hole is equal to that of the guide rail (8), and the lead screw nut base (12) is in sliding connection with the guide rail (8); and a threaded blind hole for connecting an S-shaped sensor (13) is formed in the center of one side of the third-step boss along the vertical direction.
5. The horizontal type push-pull dynamometer detection machine according to claim 1, wherein the centering connection device (3) comprises an S-shaped sensor (13), an S-shaped sensor base (14), a front connecting rod (15), a rear connecting rod (16), a pin and a coupler;
the front connecting rod (15) is a cylindrical straight rod piece, one end of the front connecting rod (15) is a semi-circular column head, the other end of the front connecting rod is a small-diameter threaded head, and a pin hole for inserting a pin is formed in the semi-circular column head along the radial direction;
the rear connecting rod (16) is a cylindrical straight rod piece, one end of the rear connecting rod (16) is a semi-circular column head, the other end of the rear connecting rod is a small-diameter smooth shaft head, and a pin hole for inserting a pin is formed in the semi-circular column head along the radial direction;
the semi-circle column head at one end of the front connecting rod (15) and the semi-circle column head at one end of the rear connecting rod (16) are combined together to form a cylinder, the front connecting rod (15) is aligned with a pin hole in the semi-circle column head at one end of the rear connecting rod (16), a pin is inserted into the pin hole aligned with the front connecting rod (15) and the rear connecting rod (16), a small-diameter thread head of the front connecting rod (15) is inserted into a through hole in the S-shaped sensor base (14) and then is in threaded connection with one end of the S-shaped sensor (13), and a small-diameter optical shaft head of the rear connecting rod (16) is connected with a stress head of the push-pull.
6. The horizontal push-pull dynamometer detection machine according to claim 1, wherein the push-pull dynamometer clamping system (4) further comprises a push-pull dynamometer baffle (18), an eccentric wheel (19), an eccentric wheel base (20), a spring, a U-shaped block pressing plate (21), a spring washer, a supporting rod (22), an auxiliary supporting rod (23) and a control rod (24);
the push-pull dynamometer base (17) is placed on a frame (29) in the linear motor motion system (5), the push-pull dynamometer baffle (18) is installed in a dovetail groove on the push-pull dynamometer base (17), and the eccentric wheel base (20) is installed on the push-pull dynamometer base (17) on the outer side of the push-pull dynamometer baffle (18) through screws; the eccentric wheel (19) is installed at the top end of an eccentric wheel base (20) through screws, an auxiliary supporting rod (23) sleeved with a nut is installed at a threaded hole No. 1 in the middle of a push-pull dynamometer base (17), a part of a sphere head in the auxiliary supporting rod (23) is upward in shaft direction, a supporting rod (22) is installed in a through hole No. 2 in the middle of the push-pull dynamometer base (17), the nut, a spring and a spring washer are sequentially sleeved on the supporting rod (22) from bottom to top, and the axis of a circular ring head on the supporting rod (22) is in the horizontal direction; a U-shaped block pressing plate (21) is inserted between a spring washer and a spring which are sleeved on the supporting rod (22), and a groove at the bottom of the U-shaped block pressing plate (21) is buckled on a part of a ball head shaft at the top end of the auxiliary supporting rod (23); the U-shaped fork body of the control rod (24) is sleeved on the circular ring body head of the support rod (22); the control rod (24) and the support rod (22) are connected together by bolts; the tested push-pull dynamometer (25) is placed on the push-pull dynamometer base (17) in a manner that the front face of the push-pull dynamometer (25) is upward, a stress head at the right end of the push-pull dynamometer (25) is inserted into a hole at the right end of the push-pull dynamometer base (17), and the eccentric wheel (19) is rotated to push the push-pull dynamometer baffle (18) to prop against the push-pull dynamometer (25); the ball handle of the control rod (24) is lifted upwards, the rear end of the U-shaped fork body of the control rod (24) presses the U-shaped block pressing plate (21) downwards, and the U-shaped block pressing plate (21) presses the tested push-pull force meter (25).
7. The horizontal push-pull dynamometer detection machine according to claim 6, wherein the push-pull dynamometer base (17) is composed of a rectangular vertical plate and a rectangular bottom plate, the bottom end of the vertical plate is vertically connected with the left end of the bottom plate, and the lower end of the vertical symmetry center of the vertical plate is provided with a through hole for placing a stress head on the push-pull dynamometer (25);
the four corners of the bottom plate are respectively provided with a threaded through hole for connecting a frame (29) in a linear motor motion system (5) by bolts; the middle part of the bottom plate is provided with a dovetail-type trapezoidal groove, the left side of the dovetail-type trapezoidal groove is provided with a rectangular groove which is convenient for placing the push-pull dynamometer baffle (18) into the dovetail-type trapezoidal groove, and the front-back width of the rectangular groove is greater than that of the dovetail-type trapezoidal groove; the dovetail-shaped dovetail groove is characterized in that 2 threaded blind holes which are identical in structure and used for being connected with an eccentric wheel base (20) are formed in the longitudinal symmetrical center line on the right side of the dovetail-shaped dovetail groove, a rectangular boss is arranged on the rear side of the middle portion of the bottom plate, and 2 threaded through holes which are identical in structure and used for being connected with a supporting rod (22) and an auxiliary supporting rod (23) are formed in the front-rear symmetrical center line of the boss.
8. The horizontal type push-pull dynamometer detection machine according to claim 6, wherein the control rod (24) is a fork-like structural member, and the control rod (24) is composed of a ball-end handle and a U-shaped fork body;
the ball head handle consists of a ball head body and a cylindrical rod part, the ball head body is connected with one end of the cylindrical rod part in a penetrating way into a whole, and the spherical center of the ball head body is collinear with the rotation axis of the cylindrical rod part;
the U-shaped fork body consists of a left fork arm, a right fork arm and a cross beam which have the same structure, wherein one ends of the left fork arm and the right fork arm are provided with a left through hole and a right through hole, and the peripheries of the ends of the left fork arm and the right fork arm, which are provided with the left through hole and the right through hole, are arranged into a plane; the other ends of the left fork arm and the right fork arm are fixedly connected with the same side wall at the two ends of the cross beam, the left fork arm and the right fork arm are parallel to each other and are vertically connected with the cross beam, and the rotation axes of the left through hole and the right through hole are collinear;
the other end of the cylindrical rod part of the ball head handle is vertically and fixedly connected with the center of the other side wall of the cross beam, and the rotation axis of the ball head handle is vertically intersected with the rotation axes of the left through hole and the right through hole.
9. The horizontal type push-pull dynamometer detection machine according to claim 1, wherein the linear motor motion system (5) further comprises 2 motor guide rails (27) with the same structure, 2 sliding blocks (28) with the same structure, a stator (30) and a rotor (31);
the linear motor base plate (26) is installed on a base of the rack (2) by screws, 2 motor guide rails (27) with the same structure are installed in 2 guide rail grooves with the same structure on the linear motor base plate (26), and two ends of the 2 motor guide rails (27) with the same structure are flush with two ends of the 2 guide rail grooves with the same structure; 2 sliding blocks (28) with the same structure are arranged on 2 motor guide rails (27) with the same structure; the stator (30) is fixed on a linear motor bottom plate (26) in the middle of 2 motor guide rails (27) with the same structure by adopting countersunk screws; the rotor (31) is inserted into the slot along the U-shaped open slot on the frame (29), and the rotor (31) is fixedly connected with the frame (29) by adopting a countersunk head screw; the frame (29) provided with the rotor (31) is arranged on 2 sliders (28) with the same structure by adopting countersunk screws.
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| CN201911104796.4A CN110646135A (en) | 2019-11-13 | 2019-11-13 | Horizontal push-pull dynamometer detector |
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| CN201911104796.4A CN110646135A (en) | 2019-11-13 | 2019-11-13 | Horizontal push-pull dynamometer detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091976A (en) * | 2021-03-26 | 2021-07-09 | 陕西飞机工业有限责任公司 | Force measuring device for push-pull force of airplane ventilation window passing dead point |
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| CN113091976B (en) * | 2021-03-26 | 2023-01-13 | 陕西飞机工业有限责任公司 | Force measuring device for push-pull force of airplane ventilation window passing dead point |
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