CN214175374U - Combined tolerance and adjusting precision detection experimental device - Google Patents
Combined tolerance and adjusting precision detection experimental device Download PDFInfo
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- CN214175374U CN214175374U CN202120267162.7U CN202120267162U CN214175374U CN 214175374 U CN214175374 U CN 214175374U CN 202120267162 U CN202120267162 U CN 202120267162U CN 214175374 U CN214175374 U CN 214175374U
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Abstract
The utility model relates to a modular tolerance detects experimental apparatus with accent dress precision, include: the device comprises a reference platform, a guide rail adjusting and installing detection assembly, a straight gear adjusting and installing detection assembly, a bevel gear adjusting and installing detection assembly, a worm gear adjusting and installing detection assembly, a crank block adjusting and installing detection assembly, a rack and pinion adjusting and installing detection assembly and a motor driving device, wherein the reference platform is provided with at least one reference plane capable of being used for detecting parallelism. Integrate each above-mentioned subassembly to a benchmark platform on, its integrated nature is higher, be close to the accent dress process of each mechanical parts of actual production process more, and can be with related knowledge main points about tolerance detection and accent dress process in the course, synthesize a set of device system, increased the student to the whole understanding of tolerance detection process and accent dress process that meets in the actual production process, make the student more thorough to tolerance and the understanding of accent dress precision measurement process, effectively improve the study practice effect.
Description
Technical Field
The utility model relates to an experimental apparatus technical field is used in the teaching, especially relates to a modular tolerance and accent dress precision detection experimental apparatus.
Background
The teaching of courses related to mechanical manufacturing engineering in colleges and universities in the department of industry relates to experimental courses related to tolerance and adjustment precision detection, such as reference guide rail adjustment and detection, threaded transmission device adjustment and precision detection, straight gear transmission device adjustment and detection, bevel gear transmission adjustment and detection, worm gear transmission adjustment and detection, gear and rack transmission adjustment and detection, mechanical comprehensive transmission device adjustment and detection and the like. However, the existing experimental device for detecting tolerance and adjustment precision is relatively independent, and through the relatively independent experimental device, students can only know the process and principle of a single experimental part, but the overall knowledge of the tolerance, adjustment and other processes in the actual production process is lacked, and the learning and practice effects are not good.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide a modular tolerance and accent dress precision measurement experimental apparatus, this experimental apparatus can increase the student to the tolerance that meets in the actual production process and the whole understanding of accent dress precision measurement process, effectively improve the study practice effect.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a modular tolerance and accent dress precision measurement experimental apparatus, includes:
a reference platform having at least one reference plane that can be detected as a degree of parallelism;
at least one group of guide rail adjusting and detecting assemblies is arranged on the reference platform and is arranged close to the side edge of the reference platform, each group of guide rail adjusting and detecting assemblies comprises a guide rail and a slide block matched with the guide rail, and the slide block is provided with a magnetic gauge stand which can be detachably connected to the slide block;
the straight gear adjusting and detecting assembly is arranged on the reference platform and comprises a pair of straight gears, a pair of first gear shafts matched with the two straight gears and two pairs of first bearing seats, wherein two ends of each first gear shaft are assembled on the pair of first bearing seats;
the bevel gear adjusting and detecting assembly is arranged on the reference platform and comprises a pair of bevel gears, a pair of second gear shafts matched with the two bevel gears and two second bearing seats, the two second gear shafts can be respectively and correspondingly assembled on the two second bearing seats, and one second gear shaft is coaxially and rotatably connected with one first gear shaft through a first coupler;
the worm gear and worm adjusting and detecting assembly is arranged on the reference platform and comprises a worm gear, a worm, a pair of third bearing seats and a first mounting seat for assembling the worm gear, two ends of the worm are respectively assembled on the two third bearing seats, a connecting hole for arranging the first mounting seat is formed in the reference platform, the connecting hole is a strip-shaped hole with the length direction vertical to the axial direction of the worm, one end of the worm penetrates out of the third bearing seat and is coaxially and rotatably connected with the other second gear shaft through a second coupler;
the crank sliding block adjusting and installing detection assembly is arranged on the reference platform and comprises a transmission rod, a guide shaft and a guide seat with a guide hole, wherein the first end of the transmission rod is connected to the side wall of the worm wheel and can rotate around the axis of the worm wheel along with the worm wheel, the second end of the transmission rod is hinged to the first end of the guide shaft, the guide shaft is arranged in the guide hole of the guide seat in a sliding mode, and a positioning plane vertical to the axial direction of the guide hole is arranged on the side wall of the guide seat;
the gear rack adjusting and detecting assembly is arranged on the reference platform and comprises a transmission rack, a transmission gear, a second mounting seat, a third gear shaft and a fourth bearing seat, a strip-shaped guide groove is formed in the top surface of the second mounting seat, the transmission rack is slidably arranged in the strip-shaped guide groove, the end part of the transmission rack is connected with the second end of the guide shaft, and the transmission gear is connected to the fourth bearing seat through the third gear shaft and meshed with the transmission rack;
and the motor driving device is arranged on the reference platform, and the power output end of the motor driving device is connected with the first gear shaft, so that the motor driving device can drive the first gear shaft to rotate around the axis of the first gear shaft.
In order to drive the above components to act after the adjustment and the installation are completed, the motor driving device comprises a first driving motor and a synchronous belt, a first driving wheel is arranged on a power output shaft of the first driving motor, a second driving wheel is coaxially connected to a first gear shaft, and the synchronous belt is connected between the first driving wheel and the second driving wheel.
In order to facilitate tolerance and adjustment detection of all components on the reference platform, the reference platform is a square platform, and the three groups of guide rail adjustment detection components are arranged along the front side edge, the left side edge and the rear side edge of the reference platform respectively. Of course, it is conceivable that other numbers of guide rail adjusting and detecting assemblies may be adopted and the guide rail adjusting and detecting assemblies may be correspondingly disposed at other positions of the reference platform according to actual requirements.
In order to realize the automatic displacement of the checking fixture or the measuring tool arranged on the magnetic gauge stand, the guide rail adjusting and detecting assembly further comprises a second driving motor and a lead screw, the end part of the lead screw is connected with the power output end of the second driving motor, and the lead screw is rotatably connected with the sliding block through threads, so that the sliding block is driven to move along the guide rail.
As an improvement, the front side edge of the reference platform is used as one reference plane, wherein the length direction of the guide rail adjusting and detecting assembly at the front side edge position of the reference platform is substantially consistent with the length direction of the front side edge of the reference platform. It is contemplated that the reference platform may have left, right, rear, or other locations as a reference plane.
As an improvement, the axial direction of a first gear shaft of the straight gear adjusting and detecting assembly is basically consistent with the length direction of the front side edge of the reference platform.
As an improvement, the axial direction of the worm gear adjusting and detecting assembly is perpendicular to the length direction of the front side edge of the reference platform.
As an improvement, the length of the transmission rack of the gear rack adjusting and detecting assembly is basically consistent with the length direction of the front side edge of the reference platform.
As an improvement, the transmission rack is divided into at least two sections along the length direction, connecting blocks are arranged on the side walls of the two adjacent sections of transmission racks, and an adjusting screw rod used for adjusting the distance between the two connecting blocks is arranged between the two connecting blocks. The operator can be according to the interval between two driving racks of adjustment through accommodate the lead screw to can realize higher transmission cooperation with drive gear after making two adjacent driving racks link up.
As an improvement, the transmission rack is divided into two sections along the length direction of the transmission rack.
Compared with the prior art, the utility model has the advantages that: the combined experimental device is higher in integration, is closer to the adjusting and assembling process of each mechanical part in the actual production process, can detect the related knowledge key points of the tolerance and the adjusting and assembling process in the course, is integrated into a set of device system, increases the overall understanding of the tolerance detection process and the adjusting and assembling process of students in the actual production process, and ensures that the students can understand the tolerance and the adjusting and assembling precision detection process more thoroughly, thereby effectively improving the learning and practice effect.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a top view of an embodiment of the present invention;
fig. 3 is the structural schematic diagram of the matching state between the two adjacent sections of transmission racks and the standard cylinder in the rack and pinion adjusting and detecting assembly of the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Referring to fig. 1-3, a combined tolerance and adjustment precision detection experimental device comprises a reference platform 10, a guide rail adjustment detection assembly, a straight gear adjustment detection assembly, a bevel gear adjustment detection assembly, a worm and gear adjustment detection assembly, a crank block adjustment detection assembly, a rack and pinion adjustment detection assembly and a motor driving device.
Referring to fig. 1 and 2, a reference platform 10 has at least one reference plane 12 that can be detected as a degree of parallelism. Specifically, the reference platform 10 of the present embodiment is a square platform, and the front side edge (i.e., the front side end face) of the square platform is used as a reference plane 12 for parallelism detection.
The guide rail adjusting and detecting assembly is at least provided with one group, is arranged on the reference platform 10 and is arranged close to the side edge of the reference platform 10, each group of guide rail adjusting and detecting assembly comprises a guide rail 31 and a sliding block 32 matched with the guide rail 31, and the sliding block 32 is provided with a magnetic suction gauge stand 33 which can be detachably connected on the sliding block 32. The guide rail of this embodiment is transferred and is adorned determine module and have three groups, sets up along the front side border, left side border and the back side border of benchmark platform 10 respectively. The length direction of the guide rail 31 of the guide rail adjusting and detecting assembly located at the front edge of the reference platform 10 is substantially consistent with the length direction of the front edge of the reference platform 10, the length direction of the guide rail 31 of the guide rail adjusting and detecting assembly located at the rear edge of the reference platform 10 is also substantially consistent with the length direction of the front edge of the reference platform 10, and the length direction of the guide rail 31 of the guide rail adjusting and detecting assembly located at the left edge of the reference platform 10 is perpendicular to the length direction of the front edge of the reference platform 10.
The magnetic gauge stand 33 on the slide block 32 of the guide rail adjusting and installing detection component can be used for assembling a detection tool or a measuring tool, so that the relevant form and position tolerances (such as parallelism tolerance and run-out tolerance) of the guide rail adjusting and installing detection component, the straight gear adjusting and installing detection component, the bevel gear adjusting and installing detection component, the worm gear adjusting and installing detection component and the rack and pinion adjusting and installing detection component are detected, and the accurate assembly of the components is further realized.
In order to realize the automatic movement of the checking fixture or measuring tool assembled on the magnetic gauge stand 33, the guide rail adjusting and detecting assembly further comprises a second driving motor 34 and a lead screw 35, the end of the lead screw 35 is connected with the power output end of the second driving motor 34, and the lead screw 35 is rotatably connected with the sliding block 32 through threads, so as to drive the sliding block 32 to move along the guide rail.
The spur gear adjusting and detecting assembly is arranged on the reference platform 10 and comprises a pair of spur gears 41, a pair of first gear shafts 42 matched with the two spur gears 41 and two pairs of first bearing seats 43, and two ends of each first gear shaft 42 are assembled on the pair of first bearing seats 43. Wherein, the axial direction of the first gear shaft 42 of the spur gear adjusting and detecting assembly is basically consistent with the length direction of the front side edge of the reference platform 10.
The bevel gear adjusting and detecting assembly is arranged on the reference platform 10 and comprises a pair of bevel gears 51, a pair of second gear shafts 52 matched with the two bevel gears 51 and two second bearing seats 53, the two second gear shafts 52 can be correspondingly assembled on the two second bearing seats 53 respectively, and one second gear shaft 52 is coaxially and rotatably connected with one first gear shaft 42 through a first coupler 21.
The worm gear adjusting and detecting assembly is arranged on the reference platform 10 and comprises a worm wheel 61, a worm 62, a pair of third bearing seats 63 and a first mounting seat 64 for assembling the worm wheel 61. Two ends of the worm 62 are respectively assembled on the two third bearing seats 63, and the reference platform 10 is provided with a connecting hole 11 for installing the first installation seat 64. The connecting hole 11 is a strip-shaped hole (not shown) whose length direction is perpendicular to the axial direction of the worm 62, so that the first mounting seat 64 and the worm wheel 61 assembled thereon can be adjusted left and right in the process of assembling on the reference platform 10, that is, the worm wheel 61 is close to or far away from the worm 62, and the purpose of precise matching is achieved. In addition, one end of the worm 62 passes through the third bearing seat 63 and is coaxially and rotatably connected to the other second gear shaft 52 through the second coupling 22. During the adjustment, the axial direction of the worm 62 of the worm gear adjustment and detection assembly is perpendicular to the length direction of the front side edge of the reference platform 10.
The crank block adjusting and detecting assembly is arranged on the reference platform 10 and comprises a transmission rod 71, a guide shaft 72 and a guide seat 73 with a guide hole. The transmission rod 71 is connected at a first end to a side wall of the worm wheel 61 and can rotate together with the worm wheel 61 about the axis of the worm wheel 61. The second end of the transmission rod 71 is hinged to the first end of the guide shaft 72, and the guide shaft 72 is slidably disposed in the guide hole of the guide holder 73. The guide holder 73 has a positioning plane 74 on a side wall thereof perpendicular to the axial direction of the guide hole. During the adjustment, the axial direction of the guide shaft 72 of the crank block adjustment detecting assembly in this embodiment is substantially the same as the length direction of the front side edge of the reference platform 10.
The gear and rack adjusting and detecting assembly is arranged on the reference platform 10 and comprises a transmission rack 81, a transmission gear 82, a second mounting seat 83, a third gear shaft 85 and a fourth bearing seat 86. A strip-shaped guide groove 84 is formed in the top surface of the second mounting seat 83, the transmission rack 81 is slidably disposed in the strip-shaped guide groove 84, and the end of the transmission rack 81 is connected with the second end of the guide shaft 72. The transmission gear 82 is connected to the fourth bearing seat 86 through the third gear shaft 85 and is engaged with the transmission rack 81. In the adjusting process, the length of the transmission rack 81 of the rack and pinion adjusting and detecting assembly is substantially consistent with the length direction of the front side edge of the reference platform 10.
Referring to fig. 3, the transmission rack 81 is divided into at least two sections along the length direction thereof, the side walls of two adjacent sections of the transmission rack 81 are provided with connecting blocks 87, and an adjusting screw 88 for adjusting the distance between the two connecting blocks 87 is arranged between the two connecting blocks 87. Preferably, the drive rack 81 in this embodiment is divided into two sections along its length.
And the motor driving device is arranged on the reference platform 10, and the power output end of the motor driving device is connected with the first gear shaft 42, so that the first gear shaft 42 can be driven to rotate around the axis of the motor driving device. Specifically, the motor driving device includes a first driving motor 91 and a synchronous belt 92, a first driving wheel 93 is disposed on a power output shaft of the first driving motor 91, a second driving wheel 94 is further coaxially connected to the first gear shaft 42, and the synchronous belt 92 is connected between the first driving wheel 93 and the second driving wheel 94. Of course, it is conceivable that the combined tolerance and adjustment precision detection experimental apparatus of the present embodiment further includes a control system, so as to control the start, stop, forward and reverse rotation of the first driving motor 91 and the second driving motor 34 of the guide rail adjustment and detection assembly.
The combined tolerance and adjusting precision detection experimental device of the embodiment is used as follows:
first, the guide rail adjusting and detecting assembly is assembled on the reference platform 10. The guide rail adjusting and installing detection assemblies are three groups, the guide rail adjusting and installing detection assemblies are required to be assembled at the front side edge, the left side edge and the rear side edge of the reference platform 10 respectively, and it is guaranteed that the guide rails 31 of any two adjacent guide rail adjusting and installing detection assemblies are perpendicular to each other, and then the guide rail adjusting and installing detection assemblies qualified in assembly are used as a reference to detect form and position tolerances of parts of other follow-up assembly assemblies, so that the accuracy of the whole experimental device after the assembly is finished is guaranteed. Now, the adjusting and installing process of the guide rail adjusting and installing detection assembly located at the front side edge of the reference platform 10 is described as an example, the guide rail 31 is initially located at the front side edge of the reference platform 10, then the dial indicator is arranged on the magnetic meter seat 33 of the sliding block 32, the measuring head of the dial indicator faces the front side edge of the reference platform 10, the front side edge is the reference plane 12, the sliding block 32 (and the dial indicator arranged thereon) is driven to move relative to the guide rail 31, and therefore the parallelism of the guide rail 31 is detected, if the parallelism exceeds the set range, the position of the guide rail 31 is adjusted and then detected again until the parallelism is qualified. The accent dress that is located the guide rail accent dress determine module's of the left side border of benchmark platform 10 and rear side border guide rail 31 can be as appurtenance through the square, makes a square align with the lateral wall of installing the guide rail 31 that targets in place, then regard as the benchmark that the depth of parallelism detected with another square of square, come to install the left side border guide rail 31 that carries out the depth of parallelism to needs and detect at benchmark platform 10, and specific accent dress testing process is the same basically, does not give unnecessary details.
Then, the adjustment and detection of the spur gear adjustment and detection assembly is performed, mainly by adjusting and installing two pairs of first bearing seats 43 of the spur gear adjustment and detection assembly, specifically, the axial direction of the first gear shaft 42 of the spur gear adjustment and detection assembly needs to be substantially consistent with the length direction of the front side edge of the reference platform 10, that is, the end surface of the first bearing seat 43 needs to be perpendicular to the length direction of the front side edge of the reference platform 10. The adjusting and installing detection process of the first bearing seat 43 can be completed with the help of the guide rail adjusting and installing detection component which is installed on the left side edge of the reference platform 10, specifically, the magnetic meter seat 33 is arranged on the sliding block 32 of the guide rail adjusting and installing detection component, then the dial indicator is arranged on the magnetic meter seat 33, the measuring head of the dial indicator faces the end face of the first bearing seat 43, then the sliding block 32 (and the dial indicator arranged on the sliding block) is driven to move relative to the guide rail 31, the parallelism of the end face of the first bearing seat 43 after initial installation is detected, if the parallelism exceeds a set range, the installation position of the first bearing seat 43 is correspondingly adjusted, and then detection is carried out again until the first bearing seat is qualified.
Then, the bevel gear adjusting and detecting assembly is adjusted and detected, mainly two second bearing seats 53 of the bevel gear adjusting and detecting assembly are adjusted and installed, specifically, an end surface of one of the second bearing seats 53 is perpendicular to the length direction of the front side edge of the reference platform 10, and an end surface of the other second bearing seat 53 is parallel to the length direction of the front side edge of the reference platform 10. The adjusting and installing detection processes of the two second bearing seats 53 can be completed with the help of two guide rail adjusting and installing detection assemblies which are installed on the left side edge and the rear side edge of the reference platform 10, specifically, the magnetic meter seat 33 is arranged on the sliding block 32 of the corresponding guide rail adjusting and installing detection assembly, then the dial indicator is arranged on the magnetic meter seat 33, the measuring head of the dial indicator faces the end face of the second bearing seat 53, then the second driving motor 34 is started, then the sliding block 32 (and the dial indicator arranged on the sliding block) is driven to move relative to the guide rail 31, the parallelism of the end face of the second bearing seat 53 after initial installation is detected, if the parallelism exceeds a set range, the installation position of the second bearing seat 53 is correspondingly adjusted, and then the detection is carried out again until the parallelism is qualified.
Then, the worm gear adjusting and detecting assembly is adjusted and detected, and mainly two third bearing seats 63 for supporting two ends of the worm 62 are adjusted and detected. In this embodiment, the two third bearing seats 63 are both required to be arranged in parallel with the length direction of the front side edge of the reference platform 10, wherein the adjusting and detecting process of the two third bearing seats 63 can be completed with the help of the guide rail adjusting and detecting component installed on the rear side edge of the reference platform 10, specifically, the magnetic meter seat 33 is installed on the slider 32 of the guide rail adjusting and detecting component, then the dial indicator is installed on the magnetic meter seat 33, the measuring head of the dial indicator faces the end surface of the third bearing seat 63, then the slider 32 (and the dial indicator installed thereon) is driven to move relative to the guide rail 31, the parallelism of the end surface of the preliminarily installed third bearing seat 63 is detected, if the parallelism exceeds the set range, the installation position of the third bearing seat 63 is correspondingly adjusted, and then the detection is performed again until the parallelism is qualified.
Then, the adjustment and detection of the crank block adjustment and detection assembly is mainly performed on the guide seat 73, wherein a positioning plane 74 perpendicular to the axial direction of the guide hole is formed on the side wall of the guide seat 73. The positioning plane 74 of the guide seat 73 in this embodiment needs to be perpendicular to the length direction of the front side edge of the reference platform 10, specifically, the adjustment and installation process of the guide seat 73 can be completed with the help of the guide rail adjustment and installation detection component installed on the left side edge of the reference platform 10, specifically, the magnetic suction gauge seat 33 is installed on the slider 32 of the guide rail adjustment and installation detection component, then the dial indicator is installed on the magnetic suction gauge seat 33, the measuring head of the dial indicator faces the positioning plane 74 of the guide seat 73, then the slider 32 (and the dial indicator installed thereon) is driven to move relative to the guide rail 31, the parallelism of the positioning plane 74 of the guide seat 73 after initial installation is detected, if the parallelism exceeds the set range, the installation position of the guide seat 73 is correspondingly adjusted, and then the detection is performed again until the parallelism is qualified.
Then, the gear and rack adjustment and detection assembly is adjusted and detected, mainly the second mounting seat 83 and the fourth bearing seat 86 are adjusted and installed, wherein the end surface of the fourth bearing needs to be arranged in parallel with the length direction of the front side edge of the reference platform 10, the length direction of the second mounting seat 83 also needs to be arranged in parallel with the length direction of the front side edge of the reference platform 10, here, the side wall surface of the second mounting seat 83 can be considered to be consistent with the length direction of the second mounting seat 83, and therefore the side wall surface of the second mounting seat 83 is used as a reference plane for detecting the parallelism. Specifically, the adjusting and installing processes of the second mounting seat 83 and the fourth bearing seat 86 can be completed with the help of the guide rail adjusting and installing detection assembly installed on the front side edge of the reference platform 10, specifically, the magnetic meter seat 33 is arranged on the slider 32 of the guide rail adjusting and installing detection assembly, then the dial indicator is arranged on the magnetic meter seat 33, the measuring head of the dial indicator faces the side wall surface of the second mounting seat 83 and the end surface of the fourth bearing seat 86, then the slider 32 (and the dial indicator arranged thereon) is driven to move relative to the guide rail 31, the parallelism of the preliminarily installed side wall surface of the second mounting seat 83 and the end surface of the fourth bearing seat 86 is detected, if the parallelism exceeds the set range, the installation positions of the second mounting seat 83 and the fourth bearing seat 86 are correspondingly adjusted, and then the detection is performed again until the parallelism is qualified.
In addition, in order to ensure that good transmission matching can be realized between two straight gears 41 of the straight gear adjusting and installing detection assembly, between the worm gear 61 and the worm 62 of the worm gear adjusting and installing detection assembly, and between the transmission rack 81 and the transmission gear 82 of the gear rack adjusting and installing detection assembly, the tooth clearance can be detected through the feeler gauge specifically until the requirements are met. More specifically, the position of the worm wheel 61 of the worm wheel and worm adjustment detection assembly can be adjusted left and right, specifically, the reference platform 10 is provided with a connecting hole 11 for placing the first mounting seat 64 (for assembling the worm wheel 61), and the connecting hole 11 is a strip-shaped hole with the length direction perpendicular to the axial direction of the worm 62, so that the first mounting seat 64 and the worm wheel 61 assembled thereon can be adjusted left and right in the process of assembling the first mounting seat 64 on the reference platform 10, that is, the worm wheel 61 is close to or far away from the worm 62, thereby achieving the purpose of precise matching.
On the other hand, the combined tolerance and adjustment precision detection experimental device of the embodiment is also suitable for butt joint installation of the two sections of transmission gears 82. Specifically, the transmission rack 81 of the present embodiment is divided into two sections along the length direction thereof, the side walls of the two sections of transmission racks 81 are both provided with a connecting block 87, and an adjusting screw 88 for adjusting the distance between the two connecting blocks 87 is arranged between the two connecting blocks 87. The adjustment of the standard cylinders 23 can be specifically completed by adopting a depth dial indicator and the standard cylinders 23 matched with the tooth space widths of the transmission racks 81, wherein the number of the standard cylinders 23 can be three, two of the standard cylinders 23 are respectively arranged in the tooth spaces on two adjacent transmission racks 81, the other standard cylinder is arranged in the tooth space formed at the joint position of the two transmission racks 81, the top of the standard cylinder 23 which is preliminarily arranged in the tooth space formed at the joint position of the two transmission racks 81 is detected by using the two standard cylinders 23 which are respectively arranged in the tooth spaces on the two adjacent transmission racks 81 as reference through the depth dial indicator (which can be assembled on a depth gauge seat), and the gap between the two sections of transmission racks 81 is adjusted through an adjusting screw 88 until the tooth space formed at the joint position of the transmission racks 81 meets the transmission requirement.
Finally, after all components of the experimental device are adjusted and installed, the first driving motor 91 can be started to sequentially drive the straight gear adjusting and installing detection assembly, the bevel gear adjusting and installing detection assembly, the worm gear adjusting and installing detection assembly, the slider-crank adjusting and installing detection assembly and the rack-and-pinion adjusting and installing detection assembly to act, then the noise of the whole device is detected through the decibel tester, the smaller the noise is, the transmission matching of each assembly of the experimental device is reflected to be more accurate, and the adjusting and installing detection result is more in place.
Claims (10)
1. The utility model provides a modular tolerance and accent dress precision detection experimental apparatus which characterized in that includes:
a reference platform (10) having at least one reference plane (12) that can be detected as a degree of parallelism;
the guide rail adjusting and installing detection assemblies are at least one group, are arranged on the reference platform (10) and are arranged close to the side edge of the reference platform (10), each group of guide rail adjusting and installing detection assemblies comprises a guide rail (31) and a sliding block (32) matched with the guide rail (31), and the sliding block (32) is provided with a magnetic gauge stand (33) which can be detachably connected to the sliding block (32);
the straight gear adjusting and detecting assembly is arranged on the reference platform (10) and comprises a pair of straight gears (41), a pair of first gear shafts (42) matched with the two straight gears (41) and two pairs of first bearing seats (43), and two ends of each first gear shaft (42) are assembled on the pair of first bearing seats (43);
the bevel gear adjusting and detecting assembly is arranged on the reference platform (10) and comprises a pair of bevel gears (51), a pair of second gear shafts (52) matched with the two bevel gears (51) and two second bearing seats (53), the two second gear shafts (52) can be correspondingly assembled on the two second bearing seats (53) respectively, and one second gear shaft (52) is coaxially and rotatably connected with one first gear shaft (42) through a first coupler (21);
the worm and gear adjusting and detecting assembly is arranged on the reference platform (10) and comprises a worm wheel (61), a worm (62), a pair of third bearing seats (63) and a first mounting seat (64) for assembling the worm wheel (61), two ends of the worm (62) are respectively assembled on the two third bearing seats (63), a connecting hole (11) for arranging the first mounting seat (64) is formed in the reference platform (10), the connecting hole (11) is a strip-shaped hole with the length direction perpendicular to the axial direction of the worm (62), one end of the worm (62) penetrates through the third bearing seats (63) and is coaxially and rotatably connected with the other second gear shaft (52) through a second coupler (22);
the crank sliding block adjusting and installing detection assembly is arranged on the reference platform (10) and comprises a transmission rod (71), a guide shaft (72) and a guide seat (73) with a guide hole, wherein the first end of the transmission rod (71) is connected to the side wall of the worm wheel (61) and can rotate around the axis of the worm wheel (61) along with the worm wheel (61), the second end of the transmission rod (71) is hinged to the first end of the guide shaft (72), the guide shaft (72) is arranged in the guide hole of the guide seat (73) in a sliding mode, and a positioning plane (74) perpendicular to the axial direction of the guide hole is arranged on the side wall of the guide seat (73);
the gear and rack adjusting and detecting assembly is arranged on the reference platform (10) and comprises a transmission rack (81), a transmission gear (82), a second mounting seat (83), a third gear shaft (85) and a fourth bearing seat (86), a strip-shaped guide groove (84) is formed in the top surface of the second mounting seat (83), the transmission rack (81) is arranged in the strip-shaped guide groove (84) in a sliding mode, the end portion of the transmission rack (81) is connected with the second end of the guide shaft (72), and the transmission gear (82) is connected to the fourth bearing seat (86) through the third gear shaft (85) and meshed with the transmission rack (81);
and the motor driving device is arranged on the reference platform (10), and the power output end of the motor driving device is connected with the first gear shaft (42), so that the first gear shaft (42) can be driven to rotate around the axis of the first gear shaft.
2. The combined tolerance and adjustment precision detection experimental device according to claim 1, characterized in that: the motor driving device comprises a first driving motor (91) and a synchronous belt (92), a first driving wheel (93) is arranged on a power output shaft of the first driving motor (91), a second driving wheel (94) is further coaxially connected to a first gear shaft (42), and the synchronous belt (92) is connected between the first driving wheel (93) and the second driving wheel (94).
3. The combined tolerance and adjustment precision detection experimental device according to claim 1, characterized in that: the reference platform (10) is a square platform, and the guide rail is provided with three groups of detection assemblies which are respectively arranged along the front side edge, the left side edge and the rear side edge of the reference platform (10).
4. The combined tolerance and adjustment accuracy testing device according to claim 3, wherein: the guide rail adjusting and detecting assembly further comprises a second driving motor (34) and a lead screw (35), the end portion of the lead screw (35) is connected with the power output end of the second driving motor (34), and the lead screw (35) is rotatably connected with the sliding block (32) through threads, so that the sliding block (32) is driven to move along the guide rail.
5. The combined tolerance and adjustment accuracy testing device according to claim 4, wherein: the front side edge of the reference platform (10) is used as the reference plane (12), wherein the length direction of a guide rail (31) of the guide rail adjusting and detecting assembly positioned at the front side edge of the reference platform (10) is basically consistent with the length direction of the front side edge of the reference platform (10).
6. The combined tolerance and adjustment accuracy testing device according to claim 5, wherein: the axial direction of a first gear shaft (42) of the straight gear adjusting and detecting assembly is basically consistent with the length direction of the front side edge of the reference platform (10).
7. The combined tolerance and adjustment accuracy testing device according to claim 6, wherein: the axial direction of a worm (62) of the worm gear and worm adjusting detection assembly is vertical to the length direction of the front side edge of the reference platform (10).
8. The combined tolerance and adjustment accuracy testing device according to claim 7, wherein: the length of a transmission rack (81) of the gear rack adjusting and detecting assembly is basically consistent with the length direction of the front side edge of the reference platform (10).
9. The combined tolerance and adjustment accuracy testing apparatus according to any one of claims 1 to 8, wherein: the transmission rack (81) is divided into at least two sections along the length direction, connecting blocks (87) are arranged on the side walls of the two adjacent sections of the transmission racks (81), and an adjusting screw rod (88) used for adjusting the distance between the two connecting blocks (87) is arranged between the two connecting blocks (87).
10. The combined tolerance and adjustment accuracy testing device according to claim 9, wherein: the transmission rack (81) is divided into two sections along the length direction.
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| CN202120267162.7U CN214175374U (en) | 2021-01-27 | 2021-01-27 | Combined tolerance and adjusting precision detection experimental device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115064025A (en) * | 2022-06-02 | 2022-09-16 | 杭州永荣实业有限公司 | Geometric tolerance detection teaching experiment table |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064025A (en) * | 2022-06-02 | 2022-09-16 | 杭州永荣实业有限公司 | Geometric tolerance detection teaching experiment table |
| CN115064025B (en) * | 2022-06-02 | 2023-11-21 | 杭州永荣实业有限公司 | Geometric tolerance detection teaching experiment table |
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