CN216815310U - Detection tool for detecting space parallelism of bridge parts - Google Patents
Detection tool for detecting space parallelism of bridge parts Download PDFInfo
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- CN216815310U CN216815310U CN202220217666.2U CN202220217666U CN216815310U CN 216815310 U CN216815310 U CN 216815310U CN 202220217666 U CN202220217666 U CN 202220217666U CN 216815310 U CN216815310 U CN 216815310U
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- connecting rod
- parallelism
- positioning
- bridge parts
- detecting
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 35
- 239000006096 absorbing agent Substances 0.000 claims abstract description 12
- 230000035939 shock Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a checking fixture for detecting the space parallelism of bridge parts, which comprises a mounting rack, and a positioning mechanism, a pressing mechanism, a supporting mechanism and a measuring mechanism which are arranged at the top of the mounting rack, wherein the positioning mechanism is arranged at the longitudinal front end of the mounting rack and used for righting and positioning an axle tube of a swing arm assembly, and the pressing mechanism is arranged at the longitudinal front end of the mounting rack and used for positioning and pressing the axle tube; the measuring mechanism is arranged at the longitudinal rear end of the mounting rack and is used for measuring the parallelism of a lower pin shaft of the shock absorber of the swing arm assembly and the supporting shaft of the hub bearing; the supporting mechanism is arranged in front of the sliding rail and used for being attached to a supporting plane of the supporting swing arm assembly. The utility model has simple structure, lower manufacturing cost and easy operation, and can obtain accurate and stable detection results. And 3, the occupancy rate of the detection equipment can be reduced without the help of a three-coordinate device.
Description
Technical Field
The utility model relates to the technical field of mechanical detection, in particular to a detection tool for detecting the space parallelism of bridge parts.
Background
The single trailing arm type suspension swing arm assembly is an important sub-assembly on a certain trailer axle assembly, a plurality of sub-components are connected through welding, the structure is shown in fig. 1-2, the swing arm assembly 100 comprises a plate-shaped main body 101, an axle tube 102, a shock absorber lower pin shaft 103 and a hub bearing support shaft 104, the axle tube 102 is located at one end of the plate-shaped main body 101, the shock absorber lower pin shaft 103 and the hub bearing support shaft 104 are respectively located on two side plate surfaces of the other end of the plate-shaped main body 101, the axle tube 102 and the hub bearing support shaft 104 are located on the same side plate surface of the plate-shaped main body 101, a support block 105 penetrates through the shock absorber lower pin shaft 103, and the bottom surface of the support block 105 forms a support plane 106 below the shock absorber lower pin shaft 103.
The shaft tube 102, the lower pin shaft 103 of the vibration absorber and the hub bearing support shaft 104 of the swing arm assembly 100 have high requirements on the form and position tolerance, and the parallelism of the shaft tube 102, the lower pin shaft 103 of the vibration absorber and the hub bearing support shaft 104 is extremely high. The parallelism of the axle tube 102, the lower pin shaft 103 of the shock absorber and the support shaft 104 of the hub bearing of the assembly needs to be accurately positioned and pressed, and the measurement of multiple parts is difficult. Currently, testing can only be performed in a three-Coordinate (CMM) testing chamber. The assembly positions and finds the reference axis by means of a V-shaped iron, then a three-Coordinate (CMM) program is carried out, and a detection result is output by a three-coordinate chamber. The method has the advantages of no special checking fixture, large manual positioning error in the measuring process, poor stability of the measuring process, long time consumption, low efficiency and incapability of meeting the requirement of mass production.
Therefore, a special testing fixture for detecting the parallelism degree, which has a simple structure, is easy to detect and operate and has an accurate measuring result, needs to be developed.
Disclosure of Invention
The utility model aims to solve the defects of the background technology and provide a special detection tool for detecting the parallelism, which has the advantages of simple structure, easy detection operation and accurate measurement result.
The technical scheme of the utility model is as follows: a checking fixture for detecting the space parallelism of bridge parts is characterized by comprising a mounting frame, a positioning mechanism, a pressing mechanism, a supporting mechanism and a measuring mechanism, wherein the positioning mechanism, the pressing mechanism, the supporting mechanism and the measuring mechanism are arranged at the top of the mounting frame,
the positioning mechanism is arranged at the longitudinal front end of the mounting frame and used for aligning and positioning the shaft tube of the swing arm assembly, and the pressing mechanism is arranged at the longitudinal front end of the mounting frame and used for positioning and pressing the shaft tube;
the measuring mechanism is arranged at the longitudinal rear end of the mounting frame and is used for measuring the parallelism of a lower pin shaft of a shock absorber and a hub bearing support shaft of the swing arm assembly, the measuring mechanism comprises a slide rail arranged transversely along the mounting frame and one or more slide blocks connected to the slide rail in a sliding manner, and at least one slide block is detachably connected with a parallelism measuring instrument;
the supporting mechanism is arranged in front of the sliding rail and used for being attached to and supporting a supporting plane of the swing arm assembly.
Preferably, the positioning mechanism comprises two pairs of bearings which are longitudinally arranged at intervals and can rotate, each pair of bearings is transversely and coaxially arranged, the outer diameters of all the bearings are the same, and the distances between the central axis and the top surface of the mounting frame are the same.
Furthermore, the positioning mechanism further comprises a positioning seat fixedly connected to the top of the mounting frame, four positioning columns are upwards arranged at the top of the positioning seat, a mounting shaft is fixedly arranged on each positioning column and corresponds to each bearing, and the bearing inner ring is in interference fit with the mounting shaft.
Furthermore, the pressing mechanism comprises a quick clamp, the quick clamp comprises a base, a handle hinged to the base and a pressing head linked with the handle, and the pressing head is located above the middle of the two pairs of bearings in a pressing state.
Furthermore, the pressing mechanism further comprises a pressing seat, the bottom of the pressing seat is fixedly connected with the positioning seat and extends upwards in a forward inclining mode, and the base of the rapid clamp is fixedly connected to the upper end of the pressing seat.
Preferably, the parallelism measuring instrument comprises a first connecting rod, a second connecting rod, a dial indicator and a magnetic suction base which can be adsorbed on the sliding block, one end of the first connecting rod is connected with the magnetic suction base, the other end of the first connecting rod is connected with one end of the second connecting rod, and the dial indicator is installed at the other end of the second connecting rod.
Furthermore, a first screw rod transversely penetrates through the magnetic base, two ends of the first screw rod extend out of the magnetic base, a first connecting rod penetrates through one end of the first screw rod, and a nut is arranged at the other end of the first screw rod to fixedly connect the first connecting rod with the magnetic base.
Furthermore, the second connecting rod is connected with the first connecting rod through a second bolt, and the second bolt penetrates through the second connecting rod in the transverse direction and then is in threaded connection with the first connecting rod.
Preferably, the support mechanism is a support column.
Preferably, the top surface of the mounting frame is rectangular, and lifting screws are arranged at four corners of the mounting frame.
The utility model has the beneficial effects that:
1. the positioning mechanism and the supporting mechanism on the mounting frame are used for placing parts, the positioning mechanism comprises two pairs of bearings with the same size, and the shaft tube is in surface contact with the two pairs of bearings when placed, so that the shaft tube can be automatically straightened. The pressing mechanism is a quick clamp, is easy to operate and take, and solves the problem of time consumption in clamping in the detection process.
2. Be equipped with the slider on the slide rail, can firmly adsorb the base with the magnetism of depth of parallelism measuring apparatu, stable removal when making the percentage table measure, connected mode is simple, convenient, easily the operation.
3. The utility model has simple structure, lower manufacturing cost and easy operation, and can obtain accurate and stable detection results. Detection device occupancy may be reduced without the aid of a three-Coordinate (CMM) device. The system can realize real-time detection of a production field, does not need to be transported back and forth, and has wide adaptability. The positioning mechanism and the supporting mechanism can adapt to shaft parts with different diameters, and the requirement of batch production of series products is met.
Drawings
FIG. 1 is a schematic view of a swing arm assembly
FIG. 2 is a top view of the swing arm assembly
FIG. 3 is a schematic view of the structure of the inspection device of the present invention
FIG. 4 is a top view of the checking fixture structure of the present invention
FIG. 5 is a side view of the checking fixture structure of the present invention
FIG. 6 is a schematic view of a structure of a gauge in a use state
FIG. 7 is a top view of the structure of the checking fixture in use
Wherein: 1-mounting frame 2-slide rail 3-slide block 4-parallelism measuring instrument (4.1-first connecting rod 4.2-second connecting rod 4.3-dial indicator 4.4-magnetic base 4.5-first screw 4.6-second bolt) 5-bearing 6-positioning seat 7-positioning column 8-mounting shaft 9-quick clamp (9.1-base 9.2-handle 9.3-pressure head) 10-pressing seat 11-supporting column 12-lifting screw 100-swing arm assembly 101-plate main body 102-shaft tube 103-lower pin shaft 104 of shock absorber-hub bearing supporting shaft 105-supporting block 106-supporting plane.
Detailed Description
The utility model is described in further detail below with reference to the figures and the specific embodiments.
The structure of the swing arm assembly 100 is shown in fig. 1-2, which has been described in detail in the background, and will not be described herein.
As shown in fig. 3 to 5, the detection tool for detecting the spatial parallelism of the bridge part provided by the utility model comprises an installation frame 1, and a positioning mechanism, a pressing mechanism, a supporting mechanism and a measuring mechanism which are arranged at the top of the installation frame 1. In this embodiment, the top surface of the mounting frame 1 is rectangular, and the four corners are provided with lifting screws 12, the length direction of the top surface of the mounting frame 1 is transverse, the width is longitudinal, the transverse direction is left and right as in fig. 3, and the longitudinal direction is up and down as in fig. 3 (the upper end is a longitudinal front end, and the lower end is a longitudinal rear end in fig. 3).
The positioning mechanism is arranged at the longitudinal front end of the mounting frame 1 and used for aligning and positioning the shaft tube 102 of the swing arm assembly 100, the positioning mechanism comprises two pairs of bearings 5 which are longitudinally arranged at intervals and can rotate, each pair of bearings 5 are transversely and coaxially arranged (namely, one bearing of each pair of bearings 5 is transversely and coaxially arranged with the other bearing), the outer diameters of all the bearings 5 are the same, and the distances between the central axis and the top surface of the mounting frame 1 are the same. The positioning mechanism further comprises a positioning seat 6 fixedly connected to the top of the mounting frame 1, four positioning columns 7 are upwards arranged at the top of the positioning seat 6, the positioning seat 6 is a rectangular block in the embodiment, and the four positioning columns 7 are respectively arranged on four corners of the top surface of the rectangular block. Each positioning column 7 is fixedly provided with a mounting shaft 8 corresponding to each bearing 5, and the inner ring of each bearing 5 is in interference fit with the mounting shaft 8. The longitudinal distance between the two pairs of bearings 5 is smaller than the outer diameter of the shaft tube 102, and when the shaft tube 102 of the swing arm assembly 100 is placed on the two pairs of bearings 5, the bearings 5 roll until the four bearings are all in contact with the outer wall of the shaft tube 102, and at this time, the shaft tube 102 is automatically straightened.
The pressing mechanism is arranged at the longitudinal front end of the mounting rack 1 and is used for positioning and pressing the axle tube 102; the pressing mechanism comprises a vertical quick clamp 9, the quick clamp 9 comprises a base 9.1, a handle 9.2 hinged to the base 9.1 and a pressing head 9.3 linked with the handle 9.2, the pressing head 9.3 is located above the middle area of the two pairs of bearings 5, and the pressing head 9.3 contacts the highest point of the outer circle surface of the shaft tube 102 when pressed tightly. The pressing mechanism further comprises a pressing seat 10, the bottom of the pressing seat 10 is fixedly connected with the positioning seat 6 through 4 screws and extends in a mode of inclining upwards and forwards, and a base 9.1 of the rapid clamp 9 is fixedly connected to the upper end of the pressing seat 10 through 4 screws.
The measuring mechanism is arranged at the longitudinal rear end of the mounting rack 1 and used for measuring the parallelism of the lower pin shaft 103 and the hub bearing support shaft 104 of the shock absorber of the swing arm assembly 100, the measuring mechanism comprises a slide rail 2 and one or more slide blocks 3, the slide rail 2 is transversely arranged along the mounting rack 1, the slide blocks 3 are connected onto the slide rail 2 in a sliding mode, and at least one slide block 3 is provided with a detachable parallelism measuring instrument 4. In this embodiment, the number of the sliders 3 is 2, and the sliders are made of a metal material capable of being magnetically attracted, the number of the parallelism measuring instruments 4 is 1, and the parallelism measuring instruments 4 are attracted to any one of the sliders 3 as required.
In this embodiment, the parallelism measuring instrument 4 includes a first connecting rod 4.1, a second connecting rod 4.2, a dial indicator 4.3, and a magnetic base 4.4 capable of being adsorbed on the slider 3, one end (lower end in fig. 3) of the first connecting rod 4.1 is connected to the magnetic base 4.4, the other end (upper end in fig. 3) is connected to one end (rear end in fig. 3) of the second connecting rod 4.2, and the dial indicator 4.3 is installed on the other end (front end in fig. 3) of the second connecting rod 4.2.
The first connecting rod 4.1 is connected with the magnetic base 4.4 through the first screw rod 4.5, the magnetic base 4.4 is provided with a through hole for the first screw rod 4.5 to transversely pass through, the aperture of the through hole is slightly larger than the outer diameter of the first screw rod 4.5, so that the first screw rod 4.5 can transversely move in the through hole, two ends of the first screw rod 4.5 extend out of the magnetic base 4.4, the first connecting rod 4.1 penetrates through one end of the first screw rod 4.5, the other end of the first screw rod 4.5 is provided with a nut (not shown in the figure), the nut is in threaded connection with the first screw rod 4.5, so that the first connecting rod 4.1 and the nut are pressed and limited on two sides of the magnetic base 4.4, and the first connecting rod 4.1 is fixedly connected with the magnetic base 4.4.
The second connecting rod 4.2 is fixedly connected with the first connecting rod 4.1 through a second bolt 4.6, and the second bolt 4.6 transversely penetrates through the second connecting rod 4.2 and then is in threaded connection with the first connecting rod 4.1.
The supporting mechanism is a supporting column 11, and is disposed in front of the sliding rail 2 for attaching to a supporting plane 106 supporting the swing arm assembly 100.
The working principle of the utility model is as follows:
as shown in fig. 6-7, when it is required to detect the parallelism of the swing arm assembly 100, the support plane 106 of the swing arm assembly 100 is placed on the support column 11, the shaft tube 102 of the swing arm assembly is placed on the four bearings 5, and the four-point alignment is performed through the bearings, taking the outer circle axis of the shaft tube 102 as the reference axis. When the swing arm assembly is placed stably, the handle 9.2 of the quick clamp 9 is pulled, and the rubber pressure head of the quick clamp 9 presses the highest point of the excircle surface of the shaft tube 10 to fix the shaft tube. The magnetic base 4.4 of the parallelism measuring instrument 4 is adsorbed on the sliding block 3, the connection angle between the first connecting rod 4.1 and the magnetic base 4.4 is adjusted (namely, the nut is firstly unscrewed, the nut is screwed up after the first connecting rod 4.1 rotates to a proper angle), the connection angle between the second connecting rod 4.2 and the first connecting rod 4.1 is adjusted (namely, the second bolt 4.6 is firstly unscrewed, and the second bolt 4.6 is screwed up after the second connecting rod 4.2 rotates to a proper angle), so that the probe of the dial indicator 4.3 lightly touches the excircle surface of the lower pin shaft 103 or the hub bearing support shaft 104 of the shock absorber to be measured. The sliding block 3 can accurately read the parallelism of the shaft to be detected and the reference shaft tube 102 according to the number of the dial indicator 4.3.
Claims (10)
1. A checking fixture for detecting the space parallelism of bridge parts is characterized by comprising an installation frame (1), a positioning mechanism, a pressing mechanism, a supporting mechanism and a measuring mechanism which are arranged at the top of the installation frame (1),
the positioning mechanism is arranged at the longitudinal front end of the mounting frame (1) and used for aligning and positioning the axle tube (102) of the swing arm assembly (100), and the pressing mechanism is arranged at the longitudinal front end of the mounting frame (1) and used for pressing the axle tube (102) after positioning;
the measuring mechanism is arranged at the longitudinal rear end of the mounting frame (1) and is used for measuring the parallelism of a lower pin shaft (103) of a shock absorber and a hub bearing support shaft (104) of the swing arm assembly (100), the measuring mechanism comprises a slide rail (2) which is transversely arranged along the mounting frame (1) and one or more slide blocks (3) which are slidably connected onto the slide rail (2), and the parallelism measuring instrument (4) is detachably connected onto at least one slide block (3);
the supporting mechanism is arranged in front of the sliding rail (2) and used for attaching and supporting a supporting plane of the swing arm assembly (100).
2. The testing fixture for detecting the spatial parallelism of bridge parts according to claim 1, wherein the positioning mechanism comprises two pairs of longitudinally spaced, rotatable bearings (5), each pair of bearings (5) is transversely and coaxially arranged, the outer diameters of all the bearings (5) are the same, and the distances between the central axis and the top surface of the mounting frame (1) are the same.
3. The testing fixture for testing the spatial parallelism of bridge parts according to claim 2, wherein the positioning mechanism further comprises a positioning seat (6) fixedly connected to the top of the mounting frame (1), four positioning columns (7) are disposed upward on the top of the positioning seat (6), each positioning column (7) is fixedly provided with a mounting shaft (8) corresponding to each bearing (5), and the inner ring of each bearing (5) is in interference fit with the mounting shaft (8).
4. The detection tool for detecting the space parallelism of the bridge parts according to claim 3, wherein the pressing mechanism comprises a quick clamp (9), the quick clamp (9) comprises a base (9.1), a handle (9.2) hinged to the base (9.1), and a pressing head (9.3) interlocked with the handle (9.2), and the pressing head (9.3) is located above the middle of the two pairs of bearings (5) in a pressing state.
5. The testing fixture for testing the spatial parallelism of bridge parts according to claim 4, wherein the hold-down mechanism further comprises a hold-down base (10), the bottom of the hold-down base (10) is fixedly connected with the positioning base (6) and extends forward and backward, and the base (9.1) of the quick clamp (9) is fixedly connected with the upper end of the hold-down base (10).
6. The detection tool for detecting the spatial parallelism of the bridge parts according to claim 1, wherein the parallelism measuring instrument (4) comprises a first connecting rod (4.1), a second connecting rod (4.2), a dial indicator (4.3) and a magnetic base (4.4) which can be attached to the sliding block (3), one end of the first connecting rod (4.1) is connected with the magnetic base (4.4), the other end of the first connecting rod is connected with one end of the second connecting rod (4.2), and the dial indicator (4.3) is installed at the other end of the second connecting rod (4.2).
7. The testing fixture for testing the spatial parallelism of bridge parts according to claim 6, wherein a first screw (4.5) is transversely disposed on the magnetic base (4.4) in a penetrating manner, and both ends of the first screw (4.5) extend out of the magnetic base (4.4), the first connecting rod (4.1) is disposed on one end of the first screw (4.5), and a nut is disposed on the other end of the first screw (4.5) for fixedly connecting the first connecting rod (4.1) and the magnetic base (4.4).
8. The detecting tool for detecting the spatial parallelism of the bridge parts according to claim 6, wherein the second connecting rod (4.2) is connected with the first connecting rod (4.1) through a second bolt (4.6), and the second bolt (4.6) passes through the second connecting rod (4.2) transversely and then is in threaded connection with the first connecting rod (4.1).
9. The detecting tool for detecting the spatial parallelism of bridge parts according to claim 1, wherein the supporting mechanism is a supporting column (11).
10. The detection tool for detecting the space parallelism of the bridge parts according to claim 1, wherein the top surface of the mounting frame (1) is rectangular, and lifting screws (12) are arranged at four corners of the mounting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220217666.2U CN216815310U (en) | 2022-01-26 | 2022-01-26 | Detection tool for detecting space parallelism of bridge parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220217666.2U CN216815310U (en) | 2022-01-26 | 2022-01-26 | Detection tool for detecting space parallelism of bridge parts |
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| Publication Number | Publication Date |
|---|---|
| CN216815310U true CN216815310U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220217666.2U Active CN216815310U (en) | 2022-01-26 | 2022-01-26 | Detection tool for detecting space parallelism of bridge parts |
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| Country | Link |
|---|---|
| CN (1) | CN216815310U (en) |
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2022
- 2022-01-26 CN CN202220217666.2U patent/CN216815310U/en active Active
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Denomination of utility model: A Measuring Tool for Measuring the Spatial Parallelism of Bridge Parts Granted publication date: 20220624 Pledgee: Agricultural Bank of China Limited Shiyan Yunyang Branch Pledgor: DONGFENG SPECIAL PARTS Co.,Ltd. Registration number: Y2024980005588 |