Rapid detection device for assembly parallelism of primary positioning rubber node

Abstract

According to the rapid detection device for the assembly parallelism of the primary positioning rubber node, the axle box semicircular sleeve vertical positioning platform is matched with the axle box front end face lateral positioning mechanism and other key components for use, and the special end face of the inner cavity of the axle box semicircular sleeve can be accurately positioned. The primary positioning rubber node positioning platform is designed for rubber nodes in a rubber node fixing cylinder, and the problems that a clamping datum plane of a complex structure is difficult to determine and the rubber nodes are inaccurate in positioning can be solved. By means of the design of the height difference between the axle box semicircular sleeve vertical positioning platform and the primary positioning rubber node positioning platform, it is possible to replace traditional high-end equipment detection with virtual reference plane measurement, and therefore the detection process is simplified. The width value of the gap between the cross recess horizontal plate and the mandrel positioning lower plane is detected by the caliper gauge, so that the dependence on the measurement environment is reduced. The cross-shaped guide groove cushion block comprises longitudinal and transverse guide grooves, the detection end of the internal caliper gauge with the meter is limited and guided, two-coordinate dimension detection is considered, and the confidence coefficient of a measurement result and the reliability of acceptance data are improved.

Description

Technical Field

[0001] The invention belongs to the field of assembly and acceptance auxiliary devices for rail vehicle bogie axle box swing arm rubber nodes, and in particular relates to a rapid detection device for assembly parallelism of a series of positioning rubber nodes. Background Art

[0002] CRH3 "Harmony" EMUs, 250km / h and 350km / h "Fuxing" EMUs all use Figures 1 to 4 The bogie axle box swing arm mechanism shown in the figure includes an axle box swing arm device and a series of positioning rubber nodes 6. The axle box swing arm device is an integrated part with a complex structure, which specifically includes an axle box semicircular sleeve 1, a spring seat 2, an axle box swing arm 3, a rubber node fixing cylinder 4 and a series of vertical shock absorber seats 5. The rubber node fixing cylinder 4 is parallel to the axis of the axle box semicircular sleeve 1, and the two are connected through the axle box swing arm 3. The spring seat 2 is fixedly connected to the top of the outer diameter of the axle box semicircular sleeve 1, and the series of vertical shock absorber seats 5 are fixedly connected to the side of the outer diameter of the axle box semicircular sleeve 1, and the series of vertical shock absorber seats 5 and the axle box swing arm 3 are respectively located on the left and right sides of the axle box semicircular sleeve 1. Figure 3 and Figure 5 As shown, a semi-circular end of the semicircular sleeve 1 of the axle box is provided with a semi-circular end cover slot 1-2 in the axial direction, and the axial outer side of the end cover slot 1-2 is the front end face A4 of the axle box, and the other axial end of the semicircular sleeve 1 of the axle box is the rear end face A3 of the axle box, and the front end face A4 and the rear end face A3 of the axle box are parallel to each other. The end cover slot 1-2 is a standard semi-circular structure, which has a milled end face A2 along its circumferential diameter. A first vertical surface A1 that is perpendicular to and intersects with the milled end face A2 is provided on the inner cavity side wall of the semicircular sleeve 1 of the axle box adjacent to the side where a series of vertical shock absorber seats 5 are located; a second vertical surface A5 that is perpendicular to and intersects with the milled end face A2 is provided on the inner cavity side wall of the semicircular sleeve 1 of the axle box adjacent to the side where the axle box swing arm 3 is located. As shown Figure 4 As shown, a series of positioning rubber nodes 6 include a rubber sleeve 6-1 and a core shaft 6-2, wherein the core shaft 6-2 coaxially passes through the rubber sleeve 6-1 and is vulcanized and fixed thereto, and the left and right core shaft cylinders of the core shaft 6-2 exposed outside the rubber sleeve 6-1 are provided with a series of positioning rubber node core shaft positioning lower planes C which are coplanar with each other and parallel to the diameter plane.

[0003] like Figure 6 As shown, the distance between the first vertical surface A1 and the second vertical surface A5 is L1. The first vertical surface A1, the milling end surface A2 and the front end surface A4 of the axle box are skewed and perpendicular to each other. The center of the rubber node fixing cylinder 4 is located between the milling end surface A2 and the end surface of the spring seat 2 and very close to the plane where the milling end surface A2 is located. Figure 7 and Figure 8As shown, the distance from the center of the rubber node fixing cylinder 4 to the semicircular sleeve 1 of the axle box is L2; ​​let the reference plane passing through the center of the rubber node fixing cylinder 4 and parallel to the milling end face A2 be D, then when a series of positioning rubber nodes 6 are pressed and embedded in the rubber node fixing cylinder 4 according to the theoretical standard posture and form an interference fit with it, the theoretical spacing value between the mandrel positioning lower plane C and the milling end face A2 should be H1. During acceptance, the parallelism between the mandrel lower positioning plane C and the milling end face A2 is required to meet the geometric tolerance requirement of no more than 0.3mm.

[0004] However, since it is difficult to determine a suitable clamping reference surface outside the axle box arm device with a complex structure, and the first-series positioning rubber node 6 is a rubber vulcanized product, the unevenness of its outer diameter often leads to the phenomenon of "self-rotation" during the press-fitting process, and after the first-series positioning rubber node 6 is pressed and embedded into the rubber node fixing tube 4 according to the theoretical standard posture, the parallelism between the positioning plane C under the core shaft and the milling end face A2 sometimes cannot meet the 0.3mm form and position tolerance requirement. Such out-of-tolerance conditions are not only difficult to quantitatively measure by visual inspection, resulting in difficulties in the implementation of acceptance operations, but also the out-of-tolerance assembly of the first-series positioning rubber node 6 in the axle box arm mechanism. The out-of-tolerance parallelism problem will also increase with the increase in service life and the wear and deformation of the rubber, thereby accelerating the aging of the rubber node device, severely shortening its service life, and even affecting the safety of train operation, increasing the frequency of inspections and maintenance costs. Using professional and expensive rubber node three-dimensional coordinate detection equipment for batch acceptance does not meet the development needs of enterprises to reduce costs and increase efficiency.

[0005] The central symmetry plane refers to a virtual cutting plane that can symmetrically divide an object with a symmetrical structure into two mirror-image parts. The midpoints of the line segments formed by connecting any two symmetrical points on the object that are mirror-symmetric about the central symmetry plane are all on the central symmetry plane. Summary of the invention

[0006] In order to solve the technical problems that the existing axle box swing arm device itself has a complex external structure and it is difficult to determine a suitable clamping reference surface, and that the first-series positioning rubber nodes, which are rubber vulcanized products, are naturally prone to deformation and errors during the press-fitting process, resulting in a lack of reasonable reference datum and measurement means for the acceptance inspection of the parallelism between the positioning plane under the core shaft and the milling end face after the two are assembled; and the professional rubber node three-dimensional coordinate detection equipment is relatively expensive and cannot meet the mass production acceptance requirements of enterprises, the present invention provides a rapid detection device for the assembly parallelism of a series of positioning rubber nodes.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0008] A rapid detection device for the parallelism of a series of positioning rubber nodes, comprising at least one internal caliper with a table, characterized in that the device also includes an axle box clamping positioning platform, a lateral positioning mechanism for the front end surface of the axle box, a vertical clamping mechanism for the shock absorber seat and two cross guide groove pads;

[0009] The axle box clamping positioning platform comprises a platform main base, an axle box semicircular sleeve vertical positioning platform, two axle box semicircular sleeve axial stops, a series of positioning rubber node positioning platforms and a lateral positioning mechanism mounting seat. The axle box semicircular sleeve vertical positioning platform and the series of positioning rubber node positioning platforms are fixed above the platform main base along the longitudinal x-axis of the platform main base, and the lateral positioning mechanism mounting seat is transversely arranged on the side of the axle box semicircular sleeve vertical positioning platform along the short side of the platform main base; the lateral positioning mechanism mounting seat is fixedly connected to the bottom of the axle box semicircular sleeve vertical positioning platform, and a gap is left between the middle and upper parts of the two.

[0010] The lateral positioning mechanism of the front end face of the axle box is fixedly connected to the upper part of the lateral positioning mechanism mounting seat in a horizontal posture, and the lower end of the vertical clamping mechanism of the shock absorber seat is vertically fixedly connected to the end of the platform main base and adjacent to the vertical positioning platform of the semicircular sleeve of the axle box; the two cross guide groove pads are symmetrically fixedly connected to the two sides of the first series positioning rubber node positioning platform.

[0011] The lateral positioning mechanism of the front end face of the axle box includes a piston cylinder and a transverse clamping plate vertically fixed to the front end of the piston rod. The piston cylinder is fixed to the upper part of the lateral positioning mechanism mounting seat in a horizontal posture, and the transverse clamping plate is suspended above the idle gap; the two axle box semicircular sleeve axial stops are both located on the other side of the axle box semicircular sleeve vertical positioning platform away from the idle gap, and the stop working end faces D of the two axle box semicircular sleeve axial stops are parallel to the end face of the transverse clamping plate.

[0012] The first-stage positioning rubber node positioning platform includes two guide gauge horizontal placement platforms that are symmetrical along the longitudinal x-axis of the platform main base and a rubber node outer circle avoidance groove located between the two guide gauge horizontal placement platforms. A guide gauge fixing screw hole is provided in the middle of the outer side wall of the guide gauge horizontal placement platform.

[0013] The cross guide groove pad includes a cross groove horizontal plate, a fastening nut vertical plate and a fastening nut; the cross groove horizontal plate and the fastening nut vertical plate are integrally formed and are right-angle iron plates with an L-shaped cross section; a through screw hole is opened on the outer side wall of the fastening nut vertical plate; the cross groove horizontal plate is placed on the horizontal placement table of the guide gauge, the inner side wall of the fastening nut vertical plate is fitted with the outer side wall of the horizontal placement table of the guide gauge, and the fastening nut passes through the light hole on the side wall of the fastening nut vertical plate and is threadedly fixed to the guide gauge fixing screw hole.

[0014] A vertically penetrating longitudinal x-axis guide groove and a transverse y-axis guide groove are provided in the middle of the end surface of the cross-slot horizontal plate; the longitudinal x-axis guide groove and the transverse y-axis guide groove are perpendicular to each other, and the two together constitute a cross-line guide groove for measurement; the longitudinal x-axis guide groove is parallel to the longitudinal x-axis of the platform main base.

[0015] The height difference D1 from the upper end surface of the vertical positioning platform of the semicircular sleeve of the axle box to the horizontal mounting platform of the guide gauge is equal to H1; the height difference D2 from the horizontal mounting platform of the guide gauge to the outer circle avoidance groove of the rubber node is 110% of the radius of the rubber sleeve; the width difference H4 of the outer circle avoidance groove of the rubber node is equal to 102% of the sleeve length value of the rubber sleeve; the width value L5 of the vertical positioning platform of the semicircular sleeve of the axle box along the longitudinal x-axis direction of the main base of the platform is equal to L1±2%.

[0016] Suppose the central symmetric plane of a series of positioning rubber node positioning platforms along the transverse y-axis direction of the platform main base is the first central symmetric plane F; and suppose the central symmetric plane of the axle box semicircular sleeve vertical positioning platform along the transverse y-axis direction of the platform main base is the second central symmetric plane G; then the spacing value L3 between the first central symmetric plane F and the second central symmetric plane G is L2±2%; the width value of the guide gauge horizontal placement table along the transverse y-axis of the platform main base is 170% of the width value of the axle box semicircular sleeve axial stop along the transverse y-axis of the platform main base.

[0017] The vertical clamping mechanism of the shock absorber seat includes a vertical screw, a vertical nylon pressure block and a vertical locking nut. The nylon pressure block is provided with a vertical through hole. The upper part of the vertical screw is threadedly connected with the vertical locking nut, and the lower part of the vertical screw is slidingly connected with the nylon pressure block through a light hole. The bottom of the vertical screw is threadedly connected with the vertical screw mounting hole at the end of the platform main base in a vertical and detachable manner.

[0018] The upper part of the lateral positioning mechanism mounting seat is provided with a piston cylinder mounting groove along the transverse y-axis direction of the platform main base, and the piston cylinder is fixed in the piston cylinder mounting groove in a horizontal posture.

[0019] The beneficial effects of the present invention are as follows: the core structure of the rapid detection device for the assembly parallelism of a series of positioning rubber nodes is specifically designed based on the complex structural characteristics and special detection requirements of the axle box rotating arm mechanism; the vertical positioning platform of the semicircular sleeve of the axle box can accurately locate the special end face in the inner cavity of the semicircular sleeve of the axle box by cooperating with the lateral positioning mechanism of the front end face of the axle box and the vertical clamping mechanism of the shock absorber seat respectively; the positioning platform of the series of positioning rubber nodes is designed according to the special detection requirements of the series of positioning rubber nodes, so that the axle box rotating arm device with the series of positioning rubber nodes pressed in the rubber node fixing cylinder can be reliably fixed according to the preset posture and position, thereby effectively solving the problems that it is difficult to determine the appropriate clamping reference surface outside the axle box rotating arm device with a complex structure and the difficulty and inaccurate positioning of the series of positioning rubber nodes made of rubber vulcanized material.

[0020] The height difference D1 between the vertical positioning platform of the semicircular sleeve of the axle box and the first-series positioning rubber node positioning platform of the present invention is equal to H1. This unique design enables the acceptance inspection end face that could not be directly measured to be equivalently replaced by virtual reference plane measurement through the device structure of the present invention, so that the large-span high-precision position relationship detection work that originally required professional and expensive high-end detection equipment such as Renishaw to complete can be converted into the detection of the width value of the gap formed between the cross groove horizontal plate of the present invention and the positioning rubber node workpiece upper core shaft positioning lower plane C, and makes it possible to detect through simple, cheap and easy-to-use caliper gauges, effectively overcoming the original dependence and limitations on harsh measurement environments, and greatly simplifying the measurement process, thereby greatly reducing the difficulty and detection cost of workpiece acceptance, significantly improving detection efficiency, and creating economic benefits.

[0021] The cross guide groove pad of the present invention comprises a longitudinal x-axis guide groove and a transverse y-axis guide groove which are perpendicular to each other, which together constitute a cross-line guide groove for measurement and can play a role in limiting and guiding the detection end of the caliper with a meter during the acceptance measurement process, so that the error detection of the gap width value can take into account two coordinate dimensions at the same time in the horizontal plane, thereby improving the confidence of the measurement results and improving the reliability of the acceptance data.

[0022] In addition, the rapid detection device for the assembly parallelism of a series of positioning rubber nodes has the advantages of simple and practical structure, convenient operation, low cost, and easy promotion and popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a certain type of existing axle box rotating arm mechanism;

[0024] Figure 2 It is a three-dimensional exploded diagram of the existing axle box rotating arm mechanism in a flipping posture;

[0025] Figure 3 yes Figure 2 A partial enlarged view of the middle I part;

[0026] Figure 4 It is an exploded view of the existing axle box rotating arm mechanism in a flipped posture and another stereoscopic perspective;

[0027] Figure 5 yes Figure 4 A partial enlarged view of the middle II part;

[0028] Figure 6 It is a three-view drawing of the existing axle box swing arm device;

[0029] Figure 7 It is the front view of the existing axle box swing arm mechanism;

[0030] Figure 8 yes Figure 7 A partial enlarged view of the middle III part;

[0031] Fig. 9 It is a stereogram of a rapid detection device for assembly parallelism of a series of positioning rubber nodes of the present invention;

[0032] Fig.10 It is a schematic diagram of the exploded assembly of the present invention for assembling parallelism of a series of positioning rubber nodes;

[0033] Fig.11 It is a three-view diagram and a stereogram of the main base of the platform of the present invention;

[0034] Fig.12 yes Fig.11 A partial enlarged view of the middle VI part;

[0035] Fig.13 It is a three-dimensional diagram of the vertical clamping mechanism of the shock absorber seat of the present invention;

[0036] Fig.14 It is a top view and a three-dimensional view of the cross guide groove pad of the present invention;

[0037] Fig.15 It is a schematic diagram of the measurement principle that two cross guide groove pads of the present invention are assembled with a series of positioning rubber node positioning platform and jointly carry and position the existing series of positioning rubber nodes;

[0038] Fig.16 It is a schematic diagram of the principle of making the measuring caliper head of the internal caliper be guided and moved by the longitudinal x-axis guide groove and the transverse y-axis guide groove of the present invention respectively for measurement;

[0039] Fig.17 It is a three-dimensional application schematic diagram of the present invention for a rapid detection device for assembly parallelism of a series of positioning rubber nodes;

[0040] Fig.18 1 is a schematic diagram of the application of the rapid detection device for assembly parallelism of a series of positioning rubber nodes of the present invention in another stereoscopic viewing angle;

[0041] Fig.19 yes Fig.18 A top view of

[0042] Fig. 20 yes Fig.18 main view. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below with reference to the accompanying drawings.

[0044] like Figures 9 to 16 As shown, the present invention is a rapid detection device for parallelism of a series of positioning rubber nodes, including at least one internal caliper 11, characterized in that the device also includes an axle box clamping positioning platform 7, an axle box front end face lateral positioning mechanism 8, a shock absorber seat vertical clamping mechanism 9 and two cross guide groove pads 10.

[0045] The axle box clamping positioning platform 7 includes a platform main base 7A, an axle box semicircular sleeve vertical positioning platform 7B, two axle box semicircular sleeve axial stops 7C, a series of positioning rubber node positioning platforms 7D and a lateral positioning mechanism mounting seat 7E. The axle box semicircular sleeve vertical positioning platform 7B and the series of positioning rubber node positioning platforms 7D are fixed on the top of the platform main base 7A along the longitudinal x-axis of the platform main base 7A. The lateral positioning mechanism mounting seat 7E is arranged laterally on the side of the axle box semicircular sleeve vertical positioning platform 7B along the short side of the platform main base 7A; the lateral positioning mechanism mounting seat 7E is fixedly connected to the bottom of the axle box semicircular sleeve vertical positioning platform 7B, and a gap 7F is left between the middle and upper parts of the two.

[0046] The lateral positioning mechanism 8 on the front end face of the axle box is fixedly connected to the upper part of the lateral positioning mechanism mounting seat 7E in a horizontal posture, and the lower end of the shock absorber seat vertical clamping mechanism 9 is vertically fixedly connected to the end of the platform main base 7A and adjacent to the axle box semicircular sleeve vertical positioning platform 7B; two cross guide groove pads 10 are fixedly connected symmetrically on both sides of the first series positioning rubber node positioning platform 7D.

[0047] The lateral positioning mechanism 8 of the front end face of the axle box includes a piston cylinder 8-1 and a transverse clamping plate 8-2 vertically fixed to the front end of the piston rod. The piston cylinder 8-1 is fixed to the upper part of the lateral positioning mechanism mounting seat 7E in a horizontal posture, and the transverse clamping plate 8-2 is suspended above the idle gap 7F; the two axle box semicircular sleeve axial stops 7C are both located on the other side of the axle box semicircular sleeve vertical positioning platform 7B away from the idle gap 7F, and the stop working end faces D of the two axle box semicircular sleeve axial stops 7C are parallel to the end face of the transverse clamping plate 8-2.

[0048] The first-series positioning rubber node positioning platform 7D includes two guide gauge horizontal placement platforms 7D-1 that are symmetrical along the longitudinal x-axis of the platform main base 7A and a rubber node outer circle avoidance groove 7D-2 located between the two guide gauge horizontal placement platforms 7D-1, and a guide gauge fixing screw hole 7D-1-1 is provided in the middle of the outer side wall of the guide gauge horizontal placement platform 7D-1.

[0049] The cross guide groove pad 10 includes a cross groove horizontal plate 10-1, a fastening nut vertical plate 10-2 and a fastening nut 10-3; the cross groove horizontal plate 10-1 and the fastening nut vertical plate 10-2 are integrally formed right-angle iron plates with an L-shaped cross section; a through screw hole is provided on the outer wall of the fastening nut vertical plate 10-2; the cross groove horizontal plate 10-1 is placed on the guide gauge horizontal placement platform 7D-1, the inner side wall of the fastening nut vertical plate 10-2 is fitted with the outer side wall of the guide gauge horizontal placement platform 7D-1, and the fastening nut 10-3 passes through the light hole on the side wall of the fastening nut vertical plate 10-2 and is threadedly fixed to the guide gauge fixing screw hole 7D-1-1.

[0050] A vertically penetrating longitudinal x-axis guide groove 10-1X and a transverse y-axis guide groove 10-1Y are provided in the middle of the end face of the cross-slot horizontal plate 10-1; the longitudinal x-axis guide groove 10-1X and the transverse y-axis guide groove 10-1Y are perpendicular to each other, and the two together constitute a cross-line guide groove for measurement; the longitudinal x-axis guide groove 10-1X is parallel to the longitudinal x-axis of the platform main base 7A.

[0051] The height difference D1 from the upper end surface of the axle box semicircular sleeve vertical positioning platform 7B to the guide gauge horizontal placement platform 7D-1 is equal to H1; the height difference D2 from the guide gauge horizontal placement platform 7D-1 to the rubber node outer circle avoidance groove 7D-2 is 110% of the radius of the rubber sleeve 6-1; the width difference H4 of the rubber node outer circle avoidance groove 7D-2 is equal to 102% of the sleeve length value of the rubber sleeve 6-1; the width value L5 of the axle box semicircular sleeve vertical positioning platform 7B along the longitudinal x-axis direction of the platform main base 7A is equal to L1±2%.

[0052] Suppose the central symmetry plane of a series of positioning rubber node positioning platform 7D along the transverse y-axis direction of the platform main base 7A is the first central symmetry plane F; and suppose the central symmetry plane of the axle box semicircular sleeve vertical positioning platform 7B along the transverse y-axis direction of the platform main base 7A is the second central symmetry plane G; then the spacing value L3 between the first central symmetry plane F and the second central symmetry plane G is L2±2%; the width value of the guide gauge horizontal placement table 7D-1 along the transverse y-axis of the platform main base 7A is 170% of the width value of the axle box semicircular sleeve axial stop 7C along the transverse y-axis of the platform main base 7A.

[0053] The vertical clamping mechanism 9 of the shock absorber seat includes a vertical screw rod 9-1, a vertical nylon pressure block 9-2 and a vertical locking nut 9-3. The nylon pressure block 9-2 is provided with a vertical through hole; the upper part of the vertical screw rod 9-1 is threadedly connected with the vertical locking nut 9-3, and the lower part of the vertical screw rod 9-1 is slidingly connected with the nylon pressure block 9-2 through a light hole; the bottom of the vertical screw rod 9-1 is threadedly connected with the vertical screw rod mounting hole 7A-1-1 at the end of the platform main base 7A in a vertical and detachable manner.

[0054] The upper part of the lateral positioning mechanism mounting seat 7E is provided with a piston cylinder mounting groove 7E-1 along the transverse y-axis direction of the platform main base 7A, and the piston cylinder 8-1 is fixed in the piston cylinder mounting groove 7E-1 in a horizontal posture.

[0055] When the present invention is used for the rapid detection device for the parallelism of a series of positioning rubber nodes, the internal caliper 11 is selected from Weihai Minghui brand 15-495 internal caliper with long claws and large range groove caliper. Figures 17 to 20 As shown, firstly, two cross guide groove pads 10 are fixedly connected to the corresponding primary positioning rubber node positioning platform 7D, and the upper end of the primary vertical shock absorber seat 5 is vertically pressed by the nylon pressing block 9-2.

[0056] Then, the axle box swivel arm device with a series of positioning rubber nodes 6 installed in the rubber node fixing cylinder 4 is placed on the rapid detection device of the present invention, so that the milled end face A2 of the circumferential diameter on the semicircular sleeve 1 of the axle box fits with the upper end face of the vertical positioning platform 7B of the semicircular sleeve of the axle box, and the first vertical upright face A1 and the second vertical upright face A5 on the inner cavity side wall of the semicircular sleeve 1 of the axle box are respectively clamped on both sides of the vertical positioning platform 7B of the semicircular sleeve of the axle box along the longitudinal x-axis direction of the main base 7A of the platform; at this time, the rubber node fixing cylinder 4 located at the other end of the axle box swivel arm mechanism is just located above the series of positioning rubber node positioning platform 7D, and the two core shafts 6-2 are just suspended above the corresponding two cross guide groove pads 10.

[0057] The lateral positioning mechanism 8 of the front end face of the axle box is controlled by the well-known electromechanical automatic control method to extend its piston cylinder 8-1 and drive the lateral tightening plate 8-2, so that its outer end face fits with the semi-annular end cover groove 1-2, and further pushes the axle box semicircular sleeve 1 to move on the axle box semicircular sleeve vertical positioning platform 7B along the lateral y-axis direction of the platform main base 7A. When the rear end face A3 of the axle box at the other axial end of the axle box semicircular sleeve 1 is limited by the stop vertical surface K of the lateral positioning mechanism 8 on the axial stop 7C of the axle box semicircular sleeve, the action of the piston cylinder 8-1 is stopped and its length and the applied lateral tightening pressure are maintained, so that the axle box swivel arm mechanism to be inspected and accepted is completely fixed on the axle box clamping positioning platform 7 of the present invention in a preset standard posture.

[0058] After that, insert both measuring ends of the internal caliper 11 with a meter into the gap between the lower positioning plane C of the core shaft of a series of positioning rubber nodes and the cross groove horizontal plate 10-1. Pass one of the measuring ends of the internal caliper 11 with a meter through the longitudinal x-axis guide groove 10-1X and directly keep contact with the upper end surface of the horizontal guide gauge placement table 7D-1. Then, increase the opening angle of the internal caliper 11 with a meter so that the other measuring end keeps contact with the lower positioning plane C of the core shaft of a series of positioning rubber nodes suspended above the gap. After that, the known method of measuring the width value of the adjacent gap with such a caliper is to slide the internal caliper 11 with a meter back and forth along the longitudinal x-axis guide groove 10-1X and observe the reading S on the caliper gauge and record its maximum value XS max If XS max If the value of is always less than or equal to 0.3 mm, it is determined that the machining of the mandrel 6-2 in the longitudinal x-axis direction of the platform main base 7A meets the tolerance requirements. Thereafter, the same method can be used to complete the machining accuracy YS of the platform main base 7A in the transverse y-axis direction of the caliper 11 with the table in the transverse y-axis guide groove 10-1Y. max Carry out measurement and acceptance.

Claims

1. A rapid detection device for the parallelism of a series of positioning rubber nodes, comprising at least one internal caliper gauge (11), characterized in that: The device also includes an axle box clamping positioning platform (7), an axle box front end face lateral positioning mechanism (8), a shock absorber seat vertical pressing mechanism (9) and two cross guide groove pads (10); The axle box clamping positioning platform (7) comprises a platform main base (7A), an axle box semicircular sleeve vertical positioning platform (7B), two axle box semicircular sleeve axial stops (7C), a series of positioning rubber node positioning platforms (7D) and a lateral positioning mechanism mounting seat (7E); the axle box semicircular sleeve vertical positioning platform (7B) and the series of positioning rubber node positioning platforms (7D) are both fixed above the platform main base (7A) along the longitudinal x-axis of the platform main base (7A); the lateral positioning mechanism mounting seat (7E) is arranged laterally on the side of the axle box semicircular sleeve vertical positioning platform (7B) along the short side of the platform main base (7A); the lateral positioning mechanism mounting seat (7E) is fixedly connected to the bottom of the axle box semicircular sleeve vertical positioning platform (7B), and a gap (7F) is left between the middle and upper parts of the two; The axle box front end face lateral positioning mechanism (8) is fixedly connected to the upper part of the lateral positioning mechanism mounting seat (7E) in a horizontal posture; the lower end of the shock absorber seat vertical clamping mechanism (9) is vertically fixedly connected to the end of the platform main base (7A) and adjacent to the axle box semicircular sleeve vertical positioning platform (7B); two cross guide groove pads (10) are fixedly connected to the two sides of the first series positioning rubber node positioning platform (7D) in a left-right symmetrical manner.

2. The rapid detection device for parallelism of a series of positioning rubber nodes as claimed in claim 1, characterized in that: The axle box front end face lateral positioning mechanism (8) comprises a piston cylinder (8-1) and a transverse tightening plate (8-2) vertically fixed to the front end of the piston rod, the piston cylinder (8-1) is fixedly connected to the upper part of the lateral positioning mechanism mounting seat (7E) in a horizontal posture, and the transverse tightening plate (8-2) is suspended above the idle gap (7F); two axle box semicircular sleeve axial stops (7C) are both located on the other side of the axle box semicircular sleeve vertical positioning platform (7B) away from the idle gap (7F), and the stop working end faces D of the two axle box semicircular sleeve axial stops (7C) are parallel to the end face of the transverse tightening plate (8-2).

3. The rapid detection device for parallelism of a series of positioning rubber nodes as claimed in claim 2, characterized in that: The first-stage positioning rubber node positioning platform (7D) comprises two guide gauge horizontal placement platforms (7D-1) symmetrically arranged along the longitudinal x-axis of the platform main base (7A) and a rubber node outer circle avoidance groove (7D-2) located between the two guide gauge horizontal placement platforms (7D-1), and a guide gauge fixing screw hole (7D-1-1) is provided in the middle of the outer side wall of the guide gauge horizontal placement platform (7D-1).

4. The rapid detection device for parallelism of a series of positioning rubber nodes as claimed in claim 3, characterized in that: The cross guide groove pad (10) comprises a cross groove horizontal plate (10-1), a fastening nut vertical plate (10-2) and a fastening nut (10-3); the cross groove horizontal plate (10-1) and the fastening nut vertical plate (10-2) are integrally formed right-angle iron plates with an L-shaped cross section; a through screw hole is provided on the outer side wall of the fastening nut vertical plate (10-2); the cross groove horizontal plate (10-1) is placed on the guide gauge horizontal placement platform (7D-1), the inner side wall of the fastening nut vertical plate (10-2) is fitted with the outer side wall of the guide gauge horizontal placement platform (7D-1), and the fastening nut (10-3) passes through the light hole on the side wall of the fastening nut vertical plate (10-2) and is threadedly fixed to the guide gauge fixing screw hole (7D-1-1).

5. The rapid detection device for parallelism of a series of positioning rubber nodes as claimed in claim 4, characterized in that: A longitudinal x-axis guide groove (10-1X) and a transverse y-axis guide groove (10-1Y) which are vertically penetrated are provided in the middle of the end surface of the cross-groove horizontal plate (10-1); the longitudinal x-axis guide groove (10-1X) and the transverse y-axis guide groove (10-1Y) are perpendicular to each other and together form a cross-line guide groove for measurement; the longitudinal x-axis guide groove (10-1X) is parallel to the longitudinal x-axis of the platform main base (7A).

6. The rapid detection device for parallelism of a series of positioning rubber nodes as claimed in claim 5, characterized in that: The height difference D1 from the upper end surface of the axle box semicircular sleeve vertical positioning platform (7B) to the guide gauge horizontal placement platform (7D-1) is equal to H1; the height difference D2 from the guide gauge horizontal placement platform (7D-1) to the rubber node outer circle avoidance groove (7D-2) is 110% of the radius of the rubber sleeve (6-1); the width difference H4 of the rubber node outer circle avoidance groove (7D-2) is equal to 102% of the sleeve length value of the rubber sleeve (6-1); the width value L5 of the axle box semicircular sleeve vertical positioning platform (7B) along the longitudinal x-axis direction of the platform main base (7A) is equal to L1±2%.

7. The rapid detection device for parallelism of a series of positioning rubber nodes as claimed in claim 5 is characterized in that: The central symmetric plane of a positioning rubber node positioning platform (7D) along the transverse y-axis direction of the platform main base (7A) is a first central symmetric plane F; and the central symmetric plane of an axle box semicircular sleeve vertical positioning platform (7B) along the transverse y-axis direction of the platform main base (7A) is a second central symmetric plane G; then the spacing value L3 between the first central symmetric plane F and the second central symmetric plane G is L2±2%; the width value of the guide gauge horizontal placement platform (7D-1) along the transverse y-axis of the platform main base (7A) is 170% of the width value of the axle box semicircular sleeve axial stopper (7C) along the transverse y-axis of the platform main base (7A).

8. The rapid detection device for parallelism of a series of positioning rubber nodes as claimed in claim 6 or 7, characterized in that: The vertical clamping mechanism (9) of the shock absorber seat comprises a vertical screw rod (9-1), a vertical nylon pressure block (9-2) and a vertical locking nut (9-3); the nylon pressure block (9-2) is provided with a vertical through hole; the upper part of the vertical screw rod (9-1) is threadedly connected to the vertical locking nut (9-3); the lower part of the vertical screw rod (9-1) is slidably connected to the nylon pressure block (9-2) through a light hole; the bottom of the vertical screw rod (9-1) is threadedly connected to the vertical screw rod mounting hole (7A-1-1) at the end of the platform main base (7A) in a vertical and detachable manner.

9. The rapid detection device for parallelism of a series of positioning rubber nodes as claimed in claim 6 or 7, characterized in that: The upper part of the lateral positioning mechanism mounting seat (7E) is provided with a piston cylinder mounting groove (7E-1) along the transverse y-axis direction of the platform main base (7A), and the piston cylinder (8-1) is fixed in the piston cylinder mounting groove (7E-1) in a horizontal posture.

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