Connecting rod symmetry degree detection device

Abstract

The utility model relates to the technical field of connecting rod symmetry degree detection, in particular to a connecting rod symmetry degree detection device which comprises a U-shaped base, a sliding opening with a convex longitudinal section is formed in the upper surface of the base, two I-shaped blocks are arranged in the sliding opening in a sliding mode, and circular grooves are formed in the upper surfaces of the I-shaped blocks. A plurality of transverse grooves communicating with the circular groove are circumferentially formed in the upper surface of the I-shaped block, first threaded rods are horizontally and rotationally installed in the transverse grooves, the first threaded rods are sleeved with sliding blocks in a threaded mode, positioning rods are vertically and fixedly installed at the top ends of the sliding blocks, and mounting grooves are formed in the side walls of the I-shaped block; a transmission assembly used for controlling the first threaded rods to rotate together is arranged in the mounting groove. And the end parts of the connecting rods with holes with different hole diameters can be fixed, so that the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of connecting rod symmetry detection technology, and in particular to a connecting rod symmetry detection device. Background Technology

[0002] Connecting rod is one of the core components of an engine, and its symmetry has a crucial impact on the performance and stability of the entire mechanical system. For example, in an engine, poor connecting rod symmetry may lead to uneven stress, increased vibration, accelerated wear, or even mechanical failure. Therefore, it is necessary to use a testing device to test the symmetry of the connecting rod.

[0003] The most common tool for symmetry testing is the dial indicator. However, when testing a connecting rod, both ends of the connecting rod need to be fixed. Since the end sizes of the connecting rods to be tested vary, the testing device cannot quickly fix the ends of connecting rods of different sizes, making it impractical. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: the most common tool for symmetry testing is a dial indicator, but when testing a connecting rod, both ends of the connecting rod need to be fixed. The end dimensions of the connecting rod to be tested vary, and the testing device cannot quickly fix the ends of connecting rods of different sizes, resulting in poor practicality. Therefore, this invention proposes a connecting rod symmetry testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A linkage symmetry detection device includes a U-shaped base. The upper surface of the base has a sliding opening with a convex longitudinal section. Two I-shaped blocks are slidably arranged in the sliding opening. The upper surface of the I-shaped blocks has a circular groove. The upper surface of the I-shaped blocks has multiple transverse grooves that are circumferentially connected to the circular groove. A first threaded rod is horizontally rotatably installed in the transverse groove. A slider is threaded onto the first threaded rod. A positioning rod is vertically fixed at the top of the slider. The side wall of the I-shaped block has an installation groove. A transmission component for controlling the rotation of multiple first threaded rods is provided in the installation groove.

[0007] A second threaded rod is vertically and rotatably mounted on the upper surface of the base. A sliding plate is threaded onto the second threaded rod. An installation opening is provided on the surface of the sliding plate. A dial indicator is vertically fixedly installed in the installation opening. The rotation of the sliding plate is restricted by a limiting component.

[0008] Preferably, the limiting component includes a limiting rod that is vertically fixedly installed on the upper surface of the base, and the slide plate is slidably sleeved on the limiting rod.

[0009] Preferably, the transmission assembly comprises a rotating shaft, a worm wheel fixedly sleeved on the rotating shaft and a worm horizontally rotatably installed in the installation groove, a rotating opening in communication with the circular groove is formed in the top wall of the installation groove, the rotating shaft is vertically rotatably installed in the rotating opening, the worm is in meshing connection with the worm wheel, the top end of the rotating shaft is fixedly installed with a driving bevel gear, and one end of the first threaded rod located in the circular groove is fixedly installed with a driven bevel gear in meshing connection with the driving bevel gear.

[0010] Preferably, the positioning rod is fixedly sleeved with an antiskid sleeve, and the material of the antiskid sleeve is rubber.

[0011] Preferably, the bottom surface of the base is fixedly installed with a plurality of suction cups, and the plurality of suction cups are symmetrically arranged.

[0012] Preferably, one end of the worm penetrates out of the installation groove and is fixedly installed with a fixing block.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The end part of the connecting rod to be detected is penetrated through the plurality of positioning rods, and then the cooperation between the transmission assembly, the plurality of first threaded rods and the plurality of sliding blocks is used to control the relative movement of the plurality of positioning rods until the surfaces of the plurality of positioning rods are tightly abutted against the hole walls of the end part of the connecting rod, so that the fixing of the end part of the connecting rod is completed, the end part of the connecting rod with different hole diameters can be fixed, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front perspective structural schematic view of the connecting rod symmetry degree detection device provided in the utility model;

[0016] Figure 2 It is a top perspective structural schematic view of the connecting rod symmetry degree detection device provided in the utility model;

[0017] Figure 3 It is a bottom perspective structural schematic view of the connecting rod symmetry degree detection device provided in the utility model;

[0018] Figure 4 It is a partial perspective structural schematic view of the H-shaped block in the connecting rod symmetry degree detection device provided in the utility model;

[0019] Figure 5 It is a partial perspective structural schematic view of the transmission assembly in the connecting rod symmetry degree detection device provided in the utility model;

[0020] Figure 6 It is a partial perspective structural schematic view of the transmission assembly in the connecting rod symmetry degree detection device provided in the utility model; Figure 4 It is a structure enlarged view of A in the utility model.

[0021] In the figure: 1 base, 2 sliding port, 3 profiled block, 4 circular groove, 5 transverse groove, 6 first threaded rod, 7 sliding block, 8 positioning rod, 9 second threaded rod, 10 sliding plate, 11 dial indicator, 12 limiting rod, 13 rotating shaft, 14 worm wheel, 15 worm, 16 driving bevel gear, 17 driven bevel gear, 18 anti-skid sleeve, 19 suction cup. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the utility model are only for the convenience of clear description, rather than for limiting the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model without substantial change of the technical content.

[0024] Reference Figures 1-6 A connecting rod symmetry degree detection device, including U-shaped base 1, the upper surface of base 1 is provided with the sliding port 2 of convex longitudinal section, two profiled blocks 3 are slidably arranged in sliding port 2, the upper surface of profiled block 3 is provided with circular groove 4, the upper surface of profiled block 3 is provided with multiple transverse grooves 5 in circumferential shape and connected with circular groove 4, first threaded rod 6 is horizontally rotatably installed in transverse groove 5, sliding block 7 is threadedly connected to first threaded rod 6, the surface of sliding block 7 is in sliding contact with the groove wall of transverse groove 5, the top end of sliding block 7 is vertically fixedly installed with positioning rod 8, the side wall of profiled block 3 is provided with mounting groove, and the mounting groove is provided with transmission assembly for controlling the rotation of multiple first threaded rods 6, the transmission assembly includes rotating shaft 13, worm wheel 14 fixedly sleeved on rotating shaft 13 and worm 15 horizontally rotatably installed in mounting groove, the top wall of mounting groove is provided with rotating port connected with circular groove 4, rotating shaft 13 is vertically rotatably installed in rotating port, worm 15 is meshingly connected with worm wheel 14, one end of worm 15 penetrates through mounting groove and is fixedly installed with fixed block, the top end of rotating shaft 13 is fixedly installed with driving bevel gear 16, and the end of first threaded rod 6 in circular groove 4 is fixedly installed with driven bevel gear 17 meshingly connected with driving bevel gear 16.

[0025] Second threaded rod 9 is vertically rotatably installed on the upper surface of base 1, sliding plate 10 is threadedly connected to second threaded rod 9, the surface of sliding plate 10 is provided with setting port, dial indicator 11 is vertically fixedly installed in setting port, and sliding plate 10 is limited to rotate by limiting component, limiting component includes limiting rod 12 vertically fixedly installed on the upper surface of base 1, and sliding plate 10 is slidably sleeved on limiting rod 12.

[0026] Firstly control two I-shaped blocks 3 to slide in the sliding port 2, then the openings at the two ends of the connecting rod are respectively sleeved on the multiple positioning rods 8 above the two I-shaped blocks 3, then the worm 15 is rotated to control the worm wheel 14 meshing with the worm 15 to rotate with the rotating shaft 13 and the driving bevel gear 16, multiple driven bevel gears 17 meshing with the driving bevel gear 16 are used for rotating with multiple first threaded rods 6, the sliding block 7 sleeved on the first threaded rod 6 is used for moving transversely with the positioning rod 8, multiple positioning rods 8 above the same I-shaped block 3 move transversely relative to each other until the multiple positioning rods 8 are tightly in close contact with the hole walls of the openings at the ends of the connecting rod, so that the ends of the connecting rod are fixed, the ends of the connecting rod with different aperture openings can be fixed, and the practicability of the device is improved.

[0027] The positioning rod 8 is fixedly sleeved with an antiskid sleeve 18, and the antiskid sleeve 18 is made of rubber.

[0028] The antiskid sleeve 18 made of rubber has good elasticity and viscosity, so that the friction between the positioning rod 8 and the contact surface of the opening at the end of the connecting rod is increased, and meanwhile, the abrasion of the hole wall of the opening due to the close contact between the positioning rod 8 and the hole wall can be avoided.

[0029] Multiple suction cups 19 are fixedly installed on the lower surface of the base 1, and the multiple suction cups 19 are symmetrically arranged.

[0030] When the base 1 is placed in a proper position, the bottom of the base 1 can be controlled to face downward, so that the multiple suction cups 19 are in close contact with the surface of the position, the suction cup 19 is deformed under the action of the pressing force, the gas in the suction cup 19 can flow out from the gap between the suction cup 19 and the ground, so that the suction is completed, and the effect of auxiliary fixing of the base 1 is achieved.

[0031] In the utility model, firstly control two I-shaped blocks 3 to slide in the sliding port 2, then the openings at the two ends of the connecting rod are respectively sleeved on the multiple positioning rods 8 above the two I-shaped blocks 3, then the worm 15 is rotated to control the worm wheel 14 meshing with the worm 15 to rotate with the rotating shaft 13 and the driving bevel gear 16, multiple driven bevel gears 17 meshing with the driving bevel gear 16 are used for rotating with multiple first threaded rods 6, the sliding block 7 sleeved on the first threaded rod 6 is used for moving transversely with the positioning rod 8, multiple positioning rods 8 above the same I-shaped block 3 move transversely relative to each other until the multiple positioning rods 8 are tightly in close contact with the hole walls of the openings at the ends of the connecting rod, so that the ends of the connecting rod are fixed, the ends of the connecting rod with different aperture openings can be fixed, and the practicability of the device is improved.

[0032] When the two ends of the connecting rod are fixed, then the second threaded rod 9 is rotated, the sliding plate 10 with the dial gauge 11 is moved vertically, the bottom end of the dial gauge 11 is adjusted to abut against the upper surface of the connecting rod, then the two I-shaped blocks 3 are controlled to slide in the sliding port 2, the surface of the connecting rod is measured through the dial gauge 11.

[0033] In the present application, unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly.

[0034] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art within the technical range disclosed by the present application, according to the technical scheme and the application concept of the present application, equivalent replacement or change, should be covered within the protection scope of the present application.

Claims

1. A connecting rod symmetry degree detection device, comprising a U-shaped base (1), characterized in that, The base (1) upper surface is provided with a longitudinal section convex slip mouth (2), the slip mouth (2) is slidably provided with two work blocks (3), the work block (3) upper surface is provided with a circular groove (4), the work block (3) upper surface is circumferentially provided with a plurality of horizontal grooves (5) which are communicated with the circular groove (4), the horizontal groove (5) is horizontally rotatably provided with a first threaded rod (6), the first threaded rod (6) is threadedly sleeved with a sliding block (7), the top of the sliding block (7) is vertically fixedly provided with a positioning rod (8), the side wall of the work block (3) is provided with a mounting groove, and the mounting groove is provided with a transmission assembly for controlling a plurality of first threaded rods (6) to rotate together. The base (1) upper surface is vertically rotatably provided with a second threaded rod (9), the second threaded rod (9) is threadedly sleeved with a sliding plate (10), the sliding plate (10) surface is provided with a mounting port, the mounting port is vertically fixedly provided with a dial indicator (11), and the sliding plate (10) is limited to rotate by a limiting component.

2. A connecting rod symmetry detection device according to claim 1, characterized in that The limiting component comprises a limiting rod (12) which is vertically fixedly installed on the base (1) upper surface, and the sliding plate (10) is slidably sleeved on the limiting rod (12).

3. A connecting rod symmetry detection device according to claim 1, wherein The transmission assembly comprises a rotating shaft (13), a worm wheel (14) fixedly sleeved on the rotating shaft (13) and a worm gear (15) horizontally rotatably installed in the mounting groove, the mounting groove top wall is provided with a rotating port communicated with the circular groove (4), the rotating shaft (13) is vertically rotatably installed in the rotating port, the worm gear (15) is meshingly connected with the worm wheel (14), the top of the rotating shaft (13) is fixedly provided with a driving bevel gear (16), and one end of the first threaded rod (6) located in the circular groove (4) is fixedly provided with a driven bevel gear (17) meshingly connected with the driving bevel gear (16).

4. The connecting rod symmetry detection device of claim 1, wherein The positioning rod (8) is fixedly sleeved with an antiskid sleeve (18), and the material of the antiskid sleeve (18) is rubber.

5. The connecting rod symmetry detection device of claim 1, wherein The base (1) lower surface is fixedly provided with a plurality of suction cups (19), and the plurality of suction cups (19) are symmetrically arranged.

6. A connecting rod symmetry detection device according to claim 3, wherein One end of the worm gear (15) penetrates out of the mounting groove and is fixedly provided with a fixed block.

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