A Measuring Device for the Center Point Position of a Three-Rod End Spherical Plain Bearing with a V-Shaped Rod

Abstract

The present invention discloses a measuring device for the spherical center point position of a three-rod end spherical plain bearing of a V-shaped rod, which comprises a horizontal ruler and a vertical ruler. A vertical ruler slider is slidably arranged on the vertical ruler, the horizontal ruler is connected to the vertical ruler slider, and a first horizontal ruler slider and a second horizontal ruler slider which are oppositely arranged are slidably arranged on the horizontal ruler. Horizontal ruler scales and vertical ruler scales for distance measurement are respectively arranged on the horizontal ruler and the vertical ruler. A first positioning member, a second positioning member and a third positioning member for positioning the first end hole, the second end hole and the third end hole of the V-shaped rod to be measured are respectively arranged on the first horizontal ruler slider, the second horizontal ruler slider and the vertical ruler. The spherical center points of the spherical plain bearings to be installed in the first end hole, the second end hole and the third end hole are respectively located on the central axes X1, X2 and X3. The measuring device of the present invention has a simple and practical structure, and the measuring process is simple, efficient, and can be used for on-line detection or finished product detection of V-shaped rod processing.

Description

Technical Field

[0001] The invention relates to the technical field of measuring devices, and in particular to a device for measuring the spherical center point position of a three-rod end joint bearing of a V-shaped rod. Background Art

[0002] Before the V-shaped rod (balanced suspension V-shaped thrust rod) leaves the factory, it is necessary to measure the ball center point position of the three rod end joint bearings and calculate the following: Figure 7 The specific values ​​of A (the length of the line connecting the center points of the spherical joint bearings installed in the first end hole and the second end hole), B (the length of the perpendicular line connecting the center point of the spherical joint bearing installed in the third end hole and the center point of the spherical joint bearing installed in the first end hole and the second end hole), and C (the length of the line connecting the center point of the spherical joint bearing installed in the first end hole or the second end hole to the perpendicular point) are shown for customers to use in selection. However, there is no measuring device specifically for V-shaped rods in the prior art, and since the axis line of the third end hole at the intersection of the two rods of the V-shaped rod is perpendicular to the plane formed by the axis lines of the first end hole and the second end hole of the two rod sections of the V-shaped rod, it is difficult to accurately and quickly calculate the values ​​of A, B, and C of the V-shaped rod even with a three-axis measuring device. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a device for measuring the spherical center point position of a V-shaped rod three-rod end joint bearing, which can quickly, conveniently and efficiently measure the spherical center point position of a V-shaped rod three-rod end joint bearing to calculate its A, B, and C values.

[0004] To achieve the above object, the present invention is achieved through the following technical solutions:

[0005] A device for measuring the ball center point position of a three-rod joint bearing of a V-shaped rod comprises a horizontal ruler and a vertical ruler, a vertical ruler slider is slidably arranged on the vertical ruler, the horizontal ruler is connected to the vertical ruler slider, and the horizontal ruler and the vertical ruler are perpendicular to each other, a first horizontal ruler slider and a second horizontal ruler slider are slidably arranged on the horizontal ruler, and horizontal ruler scales and vertical ruler scales for distance measurement are respectively arranged on the horizontal ruler and the vertical ruler, and the end holes for installing the joint bearing at the ends of the two rods of the V-shaped rod are defined as the first end hole and the second end hole, and the end hole for installing the joint bearing at the intersection of the two rods of the V-shaped rod is the third end hole, and the first horizontal ruler slider is connected to the vertical ruler slider, and the horizontal ruler and the vertical ruler are perpendicular to each other. The first block, the second horizontal ruler slider and the vertical ruler are respectively provided with the first positioning piece, the second positioning piece and the third positioning piece for positioning the first end hole, the second end hole and the third end hole, the V-shaped rod is configured to remain parallel to the horizontal ruler and the vertical ruler through the positioning action of the first positioning piece, the second positioning piece and the third positioning piece, and the first positioning piece, the second positioning piece and the third positioning piece respectively have mutually parallel positioning center axes X1, X2 and X3, and the center points of the spherical joint bearings to be installed in the first end hole, the second end hole and the third end hole are respectively on the center axes X1, X2 and X3.

[0006] Furthermore, the first positioning member includes a rotating seat rotatably connected to the first horizontal ruler slider. A positioning block adapted to be embedded in the joint bearing mounting position of the first end hole is connected to the rotating seat. The outer peripheral surface of the positioning block has an arc surface structure adapted to the bending radian of the inner peripheral surface of the joint bearing mounting position of the first end hole. An axial V-shaped opening is formed in the positioning block. A tightening bolt for adjusting the tightening degree of the positioning block is arranged at the V-shaped opening. One end of the positioning block forms a connecting end and is connected to the rotating seat. The rotation axis of the rotating seat forms the positioning central axis X1 of the first positioning member. The central axis of the positioning block is arranged in a cross shape with the positioning central axis X1, and the intersection point of the two axes coincides with the center point of the ball of the joint bearing pre-installed in the first end hole; the structure of the second positioning member is the same as that of the first positioning member.

[0007] Furthermore, an installation arm is formed on the rotating seat. An installation hole is formed in the installation arm. The connecting end of the positioning block is adaptively inserted and connected in the installation hole of the installation arm. The tightening bolt axially penetrates through the whole positioning block, and an adjusting nut for adjusting the position of the tightening bolt is screwed at the outer end of the installation arm where the tightening bolt passes through.

[0008] Furthermore, angle scales for indicating the rotation angle sizes of the first positioning member and the second positioning member are respectively arranged on the first horizontal ruler slider and the second horizontal ruler slider.

[0009] Furthermore, the positioning width dimension of the positioning block embedded in the first end hole is adapted to the bearing thickness dimension of the joint bearing to be installed in the first end hole.

[0010] Furthermore, the third positioning member includes a positioning pin. A positioning expansion sleeve is connected to the positioning pin. A core is arranged in the positioning expansion sleeve. A wedge surface structure that cooperates with each other is formed between the core and the positioning expansion sleeve. An adjusting bolt that passes through the core and is screwed to the positioning pin is connected to the core.

[0011] Furthermore, the thickness dimension of the positioning expansion sleeve is adapted to the bearing thickness dimension of the joint bearing to be installed in the third end hole.

[0012] Furthermore, the positioning central axis X3 of the third positioning member corresponds to the zero point of the longitudinal scale on the longitudinal ruler.

[0013] Furthermore, the positioning central axis X3 of the third positioning member corresponds to the zero point of the horizontal scale on the horizontal ruler.

[0014] Furthermore, set screws for locking the positions of the sliders are arranged on the first horizontal ruler slider, the second horizontal ruler slider and the longitudinal ruler slider.

[0015] The above technical solutions have the following advantages or beneficial effects:

[0016] In the measuring device for the center point positions of the spherical joints at the three rod ends of the V-shaped rod according to the present invention, during use, the third end hole of the V-shaped rod to be measured can be positioned through the third positioning member on the longitudinal scale. Then, the transverse scale is slid to a position corresponding to the end of the V-shaped rod through the longitudinal scale slider. Then, the first transverse scale slider and the second transverse scale slider on the transverse scale are slid to appropriate positions on the transverse scale, and the first end hole of the V-shaped rod is positioned through the first positioning member on the first transverse scale slider. At the same time, the second end hole of the V-shaped rod is positioned through the second positioning member on the second transverse scale slider, and the third end hole of the V-shaped rod is positioned through the third positioning member on the longitudinal scale. Through the positioning cooperation of the first positioning member, the second positioning member, and the third positioning member, the V-shaped rod to be measured is made parallel to the transverse scale and the longitudinal scale. Then, the values of A, B, and C can be calculated by measuring the values through the longitudinal scale and the transverse scale on the transverse scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic three-dimensional structure diagram of an embodiment of the present invention.

[0018] Figure 2 FIG. is a top view of the structure of an embodiment of the present invention.

[0019] Figure 3 FIG. is a schematic diagram of the use state of an embodiment of the present invention.

[0020] Figure 4 FIG. is a top view of the use state of an embodiment of the present invention.

[0021] Figure 5 FIG. Figure 4 is a sectional view taken along line A-A in

[0022] Figure 6 FIG. Figure 4 is a sectional view taken along line B-B in

[0023] Figure 7 FIG. is a measuring schematic diagram of an embodiment of the present invention.

[0024] Reference Numeral Description:

[0025] 1, transverse scale; 2, longitudinal scale; 3, longitudinal scale slider; 4, first transverse scale slider; 5, second transverse scale slider; 6, first positioning member; 7, second positioning member; 8, third positioning member; 9, V-shaped rod; 11, transverse scale graduation; 21, longitudinal scale graduation; 61, rotating seat; 62, positioning block; 63, expansion bolt; 64, adjusting nut; 81, positioning pin; 82, positioning expansion sleeve; 83, expansion core; 84, adjusting bolt; 91, first end hole; 92, second end hole; 93, third end hole; 611, mounting arm; 621, V-shaped opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0028] Please refer to the attached Figure 1 to the attached Figure 7, an embodiment of the present invention provides a device for measuring the center point position of the spherical center of a three-rod end spherical plain bearing of a V-shaped rod, including a horizontal ruler 1 and a vertical ruler 2. A vertical ruler slider 3 is slidably arranged on the vertical ruler 2, and the horizontal ruler 1 is connected to the vertical ruler slider 3, and the horizontal ruler 1 and the vertical ruler 2 are perpendicular to each other. A first horizontal ruler slider 4 and a second horizontal ruler slider 5 are slidably arranged on the horizontal ruler 1 and are oppositely arranged. Horizontal ruler scales 11 for distance measurement and vertical ruler scales 21 are respectively arranged on the horizontal ruler 1 and the vertical ruler 2. Define the end holes for installing spherical plain bearings at the two rod ends of the V-shaped rod 9 as the first end hole 91 and the second end hole 92 respectively, and the end hole for installing spherical plain bearings at the intersection of the two rods of the V-shaped rod 9 as the third end hole 93. A first positioning member 6, a second positioning member 7 and a third positioning member 8 for positioning the first end hole 91, the second end hole 92 and the third end hole 93 are respectively arranged on the first horizontal ruler slider 4, the second horizontal ruler slider 5 and the vertical ruler 2. The V-shaped rod 9 is configured to be parallel to the horizontal ruler 1 and the vertical ruler 2 through the positioning actions of the first positioning member 6, the second positioning member 7 and the third positioning member 8, and the first positioning member 6, the second positioning member 7 and the third positioning member 8 respectively have mutually parallel positioning central axes X1, X2 and X3. The spherical center points of the spherical plain bearings to be installed in the first end hole 91, the second end hole 92 and the third end hole 93 are respectively located on the central axes X1, X2 and X3. It can be understood that during use, the third end hole 93 of the V-shaped rod 9 to be measured can be positioned through the third positioning member 8 on the vertical ruler 2 first, and then the horizontal ruler 1 can be slid to a position corresponding to the end of the V-shaped rod 9 through the vertical ruler slider 3. Then, the first horizontal ruler slider 4 and the second horizontal ruler slider 5 on the horizontal ruler 1 are slid to appropriate positions on the horizontal ruler 1, and the first end hole 91 of the V-shaped rod 9 is positioned through the first positioning member 6 on the first horizontal ruler slider 4. At the same time, the second end hole 92 of the V-shaped rod 9 is positioned through the second positioning member 7 on the second horizontal ruler slider 5, and the third end hole 93 of the V-shaped rod 9 is positioned through the third positioning member 8 on the vertical ruler 2. Through the positioning cooperation of the first positioning member 6, the second positioning member 7 and the third positioning member 8, the V-shaped rod 9 to be measured is parallel to the horizontal ruler 1 and the vertical ruler 2, and the spherical center points of the spherical plain bearings to be installed in the first end hole 91, the second end hole 92 and the third end hole 93 are respectively located on the central axes X1, X2 and X3. Designed in this way, as shown in the attached Figure 7 , A2 and B2 are fixed values, and their specific numerical values can be measured in advance through measuring tools. During use, the numerical values of A2 and B2 remain unchanged, while the specific numerical values of A1, B1 and C1 can be quickly and conveniently measured through the vertical ruler scale 21 on the vertical ruler 2 and the horizontal ruler scale 11 on the horizontal ruler 1 respectively. Then A = A1 + 2 * A2, B = B1 + B2, C = C1 + A2. This makes the calculation process of the specific numerical values of A, B and C of the V-shaped rod very convenient, efficient and accurate, which is beneficial to improving the measurement efficiency. And this measuring device has a simple and practical structure, and the measurement process is simple and efficient, and can be used for on-line detection or finished product detection of V-shaped rod processing.

[0029] Please refer to the attached Figure 1 to the attached Figure 6 In one preferred embodiment, the first positioning member 6 includes a rotating seat 61 rotatably connected to the first horizontal ruler slider 4. A positioning block 62 capable of fittingly embedding into the joint bearing mounting position of the first end hole 91 is connected to the rotating seat 61. The outer peripheral surface of the positioning block 62 has an arc surface structure adapted to the bending radian of the inner peripheral surface of the joint bearing mounting position of the first end hole 91. An axial V-shaped opening 621 is formed in the positioning block 62. A tightening bolt 63 for adjusting the tightening degree of the positioning block 62 is provided at the V-shaped opening 621. One end of the positioning block 62 forms a connecting end and is connected to the rotating seat 61. The rotation axis of the rotating seat 61 forms the positioning central axis X1 of the first positioning member 6. The central axis of the positioning block 62 is arranged in a cross shape with the positioning central axis X1, and the intersection point of the two axes coincides with the center point of the ball of the joint bearing pre-installed in the first end hole 91. The structure of the second positioning member 7 is the same as that of the first positioning member 6. In this embodiment, preferably, an installation arm 611 is formed on the rotating seat 61. An installation hole is formed in the installation arm 611. The connecting end of the positioning block 62 is fittingly inserted and connected into the installation hole of the installation arm 611. The tightening bolt 63 axially penetrates the whole positioning block 62. A regulating nut 64 for adjusting the position of the tightening bolt 63 is screwed at the outer end of the tightening bolt 63 protruding from the installation arm 611. It can be understood that during positioning, the regulating nut 64 can be removed and the whole positioning block 62 and the tightening bolt 63 can be taken off. Then, the positioning block 62 and the tightening bolt 63 are inserted into the first end hole 91 from a suitable end. Then, the rotating seat 61 is rotated to a suitable angle, and the connecting end of the positioning block 62 and the end of the tightening bolt 63 are inserted into the case hole of the installation arm 611. Finally, the regulating nut 64 is locked at the end of the tightening bolt 63 and tightened so that the positioning block 62 is tightened to position the first end hole 91. The positioning block 62 can be regarded as a substitute structure of the joint bearing to be installed in the first end hole 91 to facilitate measuring the position of its center point. Another positioning method can be that without removing the positioning block 62 and the tightening bolt 63, the regulating nut 64 can be loosened, and both sides of the positioning block 62 can be pinched. Then, the first end hole 91 of the V-shaped rod is correspondingly sleeved on the positioning block 62. The position of the first end hole 91 is adjusted so that both ends of the positioning block 62 are aligned with both ends of the joint bearing mounting position inside the first end hole 91. Then, the regulating nut 64 is tightened so that the positioning block 62 is tightened. Similarly, the second positioning member 7 can also position the second end hole 92 of the V-shaped rod 9 through the above two positioning methods.

[0030] Please refer to the attached Figure 1 to the attached Figure 4 In one preferred embodiment, angle scales for indicating the rotation angle sizes of the first positioning member 6 and the second positioning member 7 are respectively provided on the first horizontal ruler slider 4 and the second horizontal ruler slider 5.

[0031] Please refer to the attached Figure 5 and the attached Figure 6 . In one preferred embodiment, the positioning width dimension of the positioning block 62 embedded in the first end hole 91 is adapted to the bearing thickness dimension of the spherical plain bearing to be installed in the first end hole 91.

[0032] Please refer to the attached Figure 5 . In one preferred embodiment, the third positioning member 8 includes a positioning pin 81. A positioning expansion sleeve 82 is connected to the positioning pin 81. A expansion core 83 is arranged in the positioning expansion sleeve 82. A wedge surface structure that cooperates with each other is formed between the expansion core 83 and the positioning expansion sleeve 82. And an adjusting bolt 84 that passes through the expansion core 83 and is screwed to the positioning pin 81 is connected to the expansion core 83. Preferably, the thickness dimension of the positioning expansion sleeve 82 is adapted to the bearing thickness dimension of the spherical plain bearing to be installed in the third end hole 93. It can be understood that after the third end hole 93 of the V-shaped rod 9 is sleeved on the third positioning member 8 of the longitudinal scale 2, only by tightening the adjusting bolt 84 can the expansion core 83 drive the positioning expansion sleeve 82 to expand and position the third end hole 93, and the positioning process is fast and convenient.

[0033] Please refer to the attached Figure 2 and the attached Figure 4 . In one preferred embodiment, the positioning central axis X3 of the third positioning member 8 corresponds to the zero point of the longitudinal scale 21 on the longitudinal scale 2. Preferably, the positioning central axis X3 of the third positioning member 8 corresponds to the zero point of the cross scale 11 on the cross scale 1.

[0034] Please refer to the attached Figure 1 to the attached Figure 4 . In one preferred embodiment, set screws for locking the slider positions are provided on the first cross-scale slider 4, the second cross-scale slider 5, and the longitudinal-scale slider 3.

[0035] As described above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Claims

1. A measuring device for the position of the spherical center point of a three-rod-end spherical plain bearing of a V-shaped rod, characterized in that: It includes a horizontal ruler (1) and a vertical ruler (2). A vertical ruler slider (3) is slidably arranged on the vertical ruler (2). The horizontal ruler (1) is connected to the vertical ruler slider (3), and the horizontal ruler (1) is perpendicular to the vertical ruler (2). Relatively arranged first horizontal ruler slider (4) and second horizontal ruler slider (5) are slidably arranged on the horizontal ruler (1). Horizontal ruler scales (11) and vertical ruler scales (21) for distance measurement are respectively arranged on the horizontal ruler (1) and the vertical ruler (2). It is defined that the end holes for installing spherical plain bearings at the two ends of the two rods of the V-shaped rod (9) are respectively the first end hole (91) and the second end hole (92), and the end hole for installing a spherical plain bearing at the intersection of the two rods of the V-shaped rod (9) is the third end hole (93). First positioning members (6), second positioning members (7) and third positioning members (8) for positioning the first end hole (91), the second end hole (92) and the third end hole (93) are respectively arranged on the first horizontal ruler slider (4), the second horizontal ruler slider (5) and the vertical ruler (2). The V-shaped rod (9) is configured to be parallel to the horizontal ruler (1) and the vertical ruler (2) through the positioning of the first positioning member (6), the second positioning member (7) and the third positioning member (8). The first positioning member (6), the second positioning member (7) and the third positioning member (8) respectively have positioning central axes X1, X2 and X3 that are parallel to each other. The center points of the spherical plain bearings to be installed in the first end hole (91), the second end hole (92) and the third end hole (93) are respectively on the central axes X1, X2 and X3; The first positioning member (6) includes a rotating seat (61) rotatably connected to the first horizontal ruler slider (4). A positioning block (62) that can be adaptively embedded in the joint bearing installation position of the first end hole (91) is connected to the rotating seat (61). The outer peripheral surface of the positioning block (62) has an arc surface structure adapted to the bending radian of the inner peripheral surface of the joint bearing installation position of the first end hole (91). An axial V-shaped opening (621) is formed in the positioning block (62). A tightening bolt (63) for adjusting the tightening degree of the positioning block (62) is arranged at the V-shaped opening (621). One end of the positioning block (62) forms a connection end and is connected to the rotating seat (61). The rotation axis of the rotating seat (61) forms the positioning central axis X1 of the first positioning member (6). The central axis of the positioning block (62) is arranged in a cross shape with the positioning central axis X1, and the intersection point of the two axes coincides with the center point of the spherical plain bearing pre-installed in the first end hole (91). The structure of the second positioning member (7) is the same as that of the first positioning member (6).

2. The measuring device for the spherical center point position of the three rod end spherical plain bearings of the V-shaped rod according to claim 1, wherein: An installation arm (611) is formed on the rotating seat (61). An installation hole is formed in the installation arm (611). The connection end of the positioning block (62) is adaptively inserted and connected in the installation hole of the installation arm (611). The tightening bolt (63) axially penetrates through the whole positioning block (62). An adjusting nut (64) for adjusting the position of the tightening bolt (63) is screwed at the outer end of the installation arm (611) where the tightening bolt (63) passes through.

3. The measuring device for the spherical center point position of the three rod-end spherical plain bearings of the V-shaped rod according to claim 2, characterized in that: Angle scales for indicating the rotation angles of the first positioning member (6) and the second positioning member (7) are respectively provided on the first horizontal scale slider (4) and the second horizontal scale slider (5).

4. The measuring device for the spherical center point position of the three-rod end spherical plain bearing of the V-shaped rod according to claim 1, characterized in that: The positioning width dimension of the positioning block (62) embedded in the first end hole (91) is adapted to the bearing thickness dimension of the spherical plain bearing to be installed in the first end hole (91).

5. The measuring device for the ball center point position of the three-rod end spherical plain bearing of the V-shaped rod according to claim 1, characterized in that: The third positioning member (8) includes a positioning pin (81), a positioning expansion sleeve (82) is connected to the positioning pin (81), a swelling core (83) is arranged in the positioning expansion sleeve (82), a wedge surface structure which cooperates with each other is formed between the swelling core (83) and the positioning expansion sleeve (82), and an adjusting bolt (84) which passes through the swelling core (83) and is screwed to the positioning pin (81) is connected to the swelling core (83).

6. The measuring device for the spherical center point position of the three rod-end spherical plain bearings of the V-shaped rod according to claim 5, characterized in that: The thickness dimension of the positioning expansion sleeve (82) is adapted to the bearing thickness dimension of the spherical plain bearing to be installed in the third end hole (93).

7. The measuring device for the ball center point position of the three-rod end spherical plain bearing of the V-shaped rod according to any one of claims 1 to 6, characterized in that: The positioning central axis X3 of the third positioning member (8) corresponds to the zero point of the longitudinal scale (21) on the longitudinal scale (2).

8. The measuring device for the ball center point position of the three-rod end spherical plain bearing of the V-shaped rod according to claim 7, characterized in that: The positioning central axis X3 of the third positioning member (8) corresponds to the zero point of the horizontal scale (11) on the horizontal scale (1).

9. The measuring device for the spherical center point position of the three-rod end spherical plain bearing of the V-shaped rod according to any one of claims 1 to 6, characterized in that: Set screws for locking the slider positions are provided on the first horizontal scale slider (4), the second horizontal scale slider (5) and the longitudinal scale slider (3).

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