Cross shaft end face symmetry measuring device

Abstract

The utility model relates to the technical field of detection equipment, in particular to a cross shaft end face symmetry measuring device. The device comprises a fixed seat, a cross shaft mounting mechanism, a movable seat, an adjusting seat, an adjusting mechanism, two dial indicators and a V-shaped replacement block, the cross shaft mounting mechanism is arranged on the fixed seat, the movable seat is slidably arranged on the fixed seat, the adjusting seat is slidably arranged on the movable seat, the adjusting mechanism is arranged on the adjusting seat, the two dial indicators are arranged above the fixed seat, and the V-shaped replacement block is arranged on the fixed seat. The positions of the two dial indicators are adjusted through the adjusting mechanism, and the V-shaped replacement block is arranged on the adjusting seat. According to the utility model, the detachable V-shaped replacement block is arranged on the adjusting seat, so that the positioning effect of the center shaft of the cross shaft can be guaranteed by replacing the V-shaped replacement block, the accuracy of subsequent detection of the symmetry degree of the end surface of the cross shaft is guaranteed, and meanwhile, the V-shaped block is replaced by a clamping disassembly and assembly mode, so that the detection efficiency is improved. And the use convenience of the whole measuring device is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a cross-axis end face symmetry measuring device. Background Art

[0002] A cross shaft is a mechanical part consisting of two perpendicular crossed shafts. It is usually used to transmit and convert power and torque, and achieves this function through some connectors and other parts. Its structure is relatively simple, but it is powerful and is an indispensable part of many mechanical equipment. Its most important function is to act as a transmission element to transfer power from one component to another. It can also position the parts to the correct position to ensure that the parts will not be offset during processing or operation. In the production process of the cross shaft, in order to ensure the production quality of the cross shaft, the cross shaft needs to be tested for cross-section symmetry.

[0003] In the prior art, there is a device and method for measuring the symmetry of the cross shaft end face (publication number: CN117053664A), which includes a base plate and a measuring table. A cross groove is provided on the base plate, and a reference V-shaped block is provided on the first side of the cross groove to place a journal A of the cross shaft to be measured. A reference V-shaped block is also provided on the second side of the cross groove opposite to the first side to place the journal B on the cross shaft to be measured opposite to the journal A. The two reference V-shaped blocks are symmetrical relative to the cross groove; a right-angle stopper is provided on the third side of the cross groove perpendicular to both the first side and the second side to contact the journal C on the cross shaft to be measured perpendicular to both the journal A and the journal B; the measuring table is fixed on the base plate by a supporting device, and the probe of the measuring table is used to vertically contact the end face of the journal A. Although the device and method for measuring the symmetry of the cross shaft end face can realize the measurement of the symmetry of the cross shaft end face without holes, blind holes and positioning holes, it eliminates the measurement error of the symmetry of the cross shaft end face with positioning holes.

[0004] However, in actual use, the surface of the V-block that contacts the end face of the cross shaft is prone to wear during long-term use, which in turn affects the limiting effect of the cross shaft position, causing the V-block to deviate during the early installation process, affecting the accuracy of subsequent symmetry measurement. Utility Model Content

[0005] In view of the problems existing in the background technology, a device for measuring the symmetry of the end surface of a cross shaft is proposed.

[0006] The utility model proposes a device for measuring the symmetry of the end face of a cross shaft, comprising a fixed seat, a cross shaft installation mechanism is arranged on the fixed seat and is used for installing and placing the cross shaft, a moving seat is slidably installed on the fixed seat, an adjusting seat is slidably installed on the moving seat, an adjusting mechanism is arranged on the adjusting seat, two micrometers are arranged on the fixed seat, the positions of the two micrometers are adjusted by the adjusting mechanism, and a detachable V-shaped replacement block is arranged on the adjusting seat.

[0007] Preferably, the adjustment mechanism is composed of a lifting component, a horizontal movement component and an opposite movement component. The lifting component specifically includes a fixed rod installed on the adjustment seat, a lifting plate is slidably installed on the fixed rod, an electric push rod is provided on the fixed rod, the telescopic shaft of the electric push rod is connected to the lifting plate, and is used to drive the lifting plate to rise and fall. The horizontal movement component includes a cross groove provided on the lifting plate, a cross block is slidably installed in the cross groove, a horizontal movement frame is installed on the cross block, and the opposite movement component includes a bidirectional screw installed on the horizontal movement frame, two connecting blocks are provided on the bidirectional screw, the two connecting blocks are symmetrically arranged, and the two micrometers are respectively connected to the two connecting blocks.

[0008] Preferably, the cross-axis installation mechanism is composed of a horizontal moving component 2 and a cross-axis placement component. The horizontal moving component 2 is arranged on a fixed seat and is driven by an electric push rod 2. The cross-axis placement component is composed of a disc and four limit rods. The disc is arranged above the fixed seat. The four limit rods are all installed on the disc. The cross-axis is limited by the four limit rods, and the cross-axis is driven to move horizontally by the horizontal moving component 2.

[0009] Preferably, a positioning hole is provided on the adjustment seat, and a positioning cylinder is installed on the V-shaped replacement block, and the positioning cylinder is adapted to the positioning hole.

[0010] Preferably, an adjustment groove is provided on the adjustment seat, a holding block is slidably installed in the adjustment groove, one side of the holding block extends outside the adjustment groove and is L-shaped, a return spring is provided in the adjustment groove, the return spring is connected to the holding block, a holding groove is provided on the V-shaped replacement block, the holding groove is L-shaped, and the holding groove is adapted to the holding block.

[0011] Preferably, a detection component is provided on the adjustment seat, and the detection component consists of a lifting frame and two contact sensors. The lifting frame is installed on the adjustment seat, and the two contact sensors are both arranged on the lifting frame. The two contact sensors are symmetrically arranged, and the two contact sensors respectively contact the inner walls on both sides of the V-shaped replacement block.

[0012] Preferably, two correction plates are mounted on the fixing seat, and the two correction plates are symmetrically arranged.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] By setting a detachable V-shaped replacement block on the adjustment seat, the positioning effect of the cross shaft center axis can be guaranteed by replacing the V-shaped replacement block, and the accuracy of the subsequent cross shaft end face symmetry detection can be guaranteed. At the same time, the V-shaped block can be replaced by clamping and disassembling, which also improves the convenience of use of the entire measuring device.

[0015] By arranging a detection component on the adjustment seat, the two contact sensors are brought into contact with the inner side of the V-shaped replacement block to determine whether the V-shaped replacement slider is installed in place and whether the two inner side surfaces of the V-shaped replacement block are accurately symmetrical, thereby ensuring the subsequent detection effect of the cross. At the same time, the two inner side surfaces of the V-shaped replacement block can also be inspected on a daily basis through the detection component to determine whether the two inner side surfaces of the V-shaped replacement block are worn, thereby determining whether to replace it, thereby ensuring the measurement effect of the measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the bidirectional screw in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the adjustment seat in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the V-shaped replacement block in the utility model.

[0020] Figure numerals: 1. fixed seat; 2. horizontal moving component 2; 3. cross-axis placement component; 4. cross-axis; 5. moving seat; 6. adjustment component; 7. adjustment seat; 8. fixed rod; 9. lifting plate; 10. electric push rod 1; 11. horizontal moving frame; 12. bidirectional screw; 13. micrometer; 14. detection component; 15. V-shaped replacement block; 16. positioning cylinder; 17. clamping groove; 18. adjustment groove; 19. clamping block; 20. reset spring; 21. positioning hole. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 4 As shown, a cross-axis end face symmetry measuring device proposed by the utility model comprises: a fixed seat 1, a cross-axis mounting mechanism, a movable seat 5, an adjustment seat 7, an adjustment mechanism, a micrometer 13 and a V-shaped replacement block 15.

[0022] like Figure 1-Figure 4As shown, the cross-axis mounting mechanism is arranged on the fixed seat 1, which is composed of a horizontal moving component 2 and a cross-axis placement component 3. The horizontal moving component 2 includes a moving plate slidably mounted on the fixed seat 1 and an electric push rod 2 mounted on the fixed seat 1. A connecting frame is installed on the telescopic shaft of the electric push rod 2, and the connecting frame is connected to the moving plate by two mounting bolts, which is used to drive the cross-axis 4 to move horizontally. The cross-axis placement component 3 is composed of a disc and four limit rods. The disc is mounted on the top of the moving plate, and the four limit rods are all mounted on the disc. The cross-axis 4 is limited by the four limit rods. In this embodiment, the disc is mounted on the moving plate by bolt mounting. In actual use, the disc can be rotatably connected to the moving plate. A motor is used as a rotating output element. By installing the disc in this way, the cross-axis 4 can be easily driven to rotate, thereby quickly converting the measuring end face of the cross-axis 4 and improving the measurement efficiency of the cross-axis 4. The moving seat 5 is slidably mounted on the fixed seat 1, and a fixed seat 1 is provided with There is an adjusting component 6, which includes a fixed side plate and a screw. The fixed side plate is installed on the top of the fixed seat 1, and the threaded rod is rotatably installed on the movable seat 5. One end of the threaded rod passes through the fixed side plate and is threadedly connected to the fixed side plate, so that the position of the movable seat 5 can be adjusted by means of a threaded knob, thereby facilitating the replacement of the V-shaped replacement block 15 and pre-correcting the micrometer 13. The adjusting seat 7 is slidably installed on the movable seat 5. The movable seat 5 is provided with a T-shaped groove. A T-shaped slider is installed at the bottom of the adjusting seat 7. The T-shaped slider is slidably connected to the T-shaped slide groove. Through the sliding connection, when the V-shaped replacement block 15 contacts the cross shaft 4, the adjusting seat 7 can drive the V-shaped replacement block 15 to automatically adjust its position to ensure that the central axis of the V-shaped replacement block 15 coincides with the axis center of the cross shaft 4. The adjusting mechanism is arranged on the adjusting seat 7, and the two micrometers 13 are both arranged above the fixed seat 1. The positions of the two micrometers 13 are adjusted by the adjusting mechanism, and the V-shaped replacement block 15 is arranged on the adjusting seat 7.

[0023] like Figure 1-Figure 4 As shown, the adjustment mechanism is composed of a lifting component, a horizontal moving component and an opposite moving component. The lifting component specifically includes a fixed rod 8 installed on the adjustment seat 7, a lifting plate 9 is slidably installed on the fixed rod 8, an electric push rod 10 is provided on the fixed rod 8, and the telescopic shaft of the electric push rod 10 is connected to the lifting plate 9 for driving the lifting plate 9 to move up and down. The horizontal moving component includes a cross groove provided on the lifting plate 9, a cross block is slidably installed in the cross groove, a horizontal moving frame 11 is installed on the cross block, and the opposite moving component includes a bidirectional screw 12 installed on the horizontal moving frame 11, two connecting blocks are provided on the bidirectional screw 12, the two connecting blocks are symmetrically arranged, and two micrometers 13 are respectively connected to the two connecting blocks.

[0024] like Figure 3 and Figure 4As shown, a positioning hole 21 is provided on the adjustment seat 7, a positioning cylinder 16 is installed on the V-shaped replacement block 15, and the positioning cylinder 16 is adapted to the positioning hole 21; an adjustment groove 18 is provided on the adjustment seat 7, and a holding block 19 is slidably installed in the adjustment groove 18, one side of the holding block 19 extends to the outside of the adjustment groove 18 and is L-shaped; a return spring 20 is provided in the adjustment groove 18, and the return spring 20 is connected to the holding block 19; a holding groove 17 is provided on the V-shaped replacement block 15, and the holding groove 17 is L-shaped and adapted to the holding block 19.

[0025] like Figure 1 As shown, a detection assembly 14 is arranged on the adjustment seat 7. The detection assembly 14 is composed of a lifting frame and two contact sensors. The contact sensor is constructed by the prior art. It is a sensor that can directly sense the contact state of an object. By directly contacting the probe with the object to be tested, the circuit parameters (such as resistance, capacitance, inductance, etc.) are changed, thereby detecting the contact state or related parameters (such as temperature, pressure, displacement, etc.) of the object. This sensor is usually composed of a metal probe and a shell. The probe directly contacts the object to be tested and transmits the signal to the external circuit. The lifting frame is installed on the adjustment seat 7. The lifting frame includes two vertical rods, a horizontal plate, and a push spring. A spring, a vertical block and two connecting rods, the two vertical rods are installed on the adjustment seat 7, the transverse plate is slidably installed on the two vertical rods, the pushing spring is sleeved on one of the vertical rods, the top of the pushing spring is connected to the transverse plate, and the two contact sensors can be driven back to the original position by pushing the spring, the vertical block is installed on the transverse plate, the two connecting rods are symmetrically installed on the vertical block, the two contact sensors are connected to one end of the two connecting rods, and the two contact sensors are respectively in contact with the inner walls on both sides of the V-shaped replacement block 15. When in use, it is necessary to press down the transverse plate to drive the two contact sensors to contact the two inner side surfaces of the V-shaped replacement block 15, so as to determine whether the inner side surfaces are worn.

[0026] like Figure 1 As shown, two correction plates are installed on the fixing seat 1, and the two correction plates are symmetrically arranged. The two micrometer gauges 13 can be easily corrected by the two correction plates to ensure the measurement synchronization of the two micrometer gauges 13.

[0027] In this embodiment, when in use, the cross shaft 4 is placed on the disc and fixed by four limit rods. The placement and removal of the cross shaft 4 can be performed by a mechanical arm in the prior art, and then the cross shaft 4 is pushed to the detection position by the horizontal moving component 2. During the horizontal movement of the cross shaft 4, one side of the cross shaft 4 first contacts the outer wall of one side of the V-shaped replacement block 15. During the continued movement of the cross shaft 4, under the action of the inclined surface of the V-shaped replacement block 15, the V-shaped replacement block 15 is moved horizontally along with the movement of the cross shaft 4 until the axis of one side of the cross shaft 4 coincides with the central axis of the V-shaped replacement block 15. At this time, it can be determined that the cross shaft 4 is located in the center between the two micrometers 13, and then measurement can be performed.

[0028] The specific measurement operation is as follows: first, adjust the horizontal moving frame 11 to drive the two micrometers 13 to move, so that the two micrometers 13 are respectively in contact with one side of the two correction plates, observe the degrees on the two micrometers 13, and adjust the positions of the probes on the two micrometers 13 according to the degrees until the degrees of the two micrometers 13 are the same. At this time, the positions of the probes on the two micrometers 13 are consistent, and then the positions of the two micrometers 13 can be adjusted through the adjustment mechanism to contact with the two ends of the cross shaft 4, so that the lowest degree on the two micrometers 13 reaches ten degrees. At this time, observe the degrees on the two micrometers 13, and the degree on the micrometer 13 that exceeds ten degrees minus ten degrees is the deviation of the cross shaft 4, thereby completing the symmetry measurement of the cross shaft 4.

[0029] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A device for measuring the symmetry of a cross shaft end surface, comprising: The fixed seat (1) is characterized in that a cross-axis mounting mechanism is provided on the fixed seat (1) for mounting and placing the cross-axis, a movable seat (5) is slidably mounted on the fixed seat (1), an adjustment seat (7) is slidably mounted on the movable seat (5), an adjustment mechanism is provided on the adjustment seat (7), two micrometers (13) are provided on the fixed seat (1), the positions of the two micrometers (13) are adjusted by the adjustment mechanism, and a detachable V-shaped replacement block (15) is provided on the adjustment seat (7).

2. A cross-shaft end face symmetry measuring device according to claim 1, characterized in that: The adjustment mechanism is composed of a lifting component, a horizontal moving component and an opposing moving component. The lifting component specifically comprises a fixed rod (8) mounted on an adjustment seat (7), a lifting plate (9) being slidably mounted on the fixed rod (8), an electric push rod (10) being arranged on the fixed rod (8), a telescopic shaft of the electric push rod (10) being connected to the lifting plate (9) for driving the lifting plate (9) to move up and down, the horizontal moving component (1) comprising a cross groove provided on the lifting plate (9), a cross block being slidably mounted in the cross groove, a horizontal moving frame (11) being mounted on the cross block, and the opposing moving component comprising a bidirectional screw (12) mounted on the horizontal moving frame (11), two connecting blocks being arranged on the bidirectional screw (12), the two connecting blocks being symmetrically arranged, and two dial gauges (13) being respectively connected to the two connecting blocks.

3. A device for measuring the symmetry of a cross shaft end surface according to claim 1, characterized in that: The cross-axis installation mechanism is composed of a second horizontal moving component (2) and a cross-axis placement component (3). The second horizontal moving component (2) is arranged on a fixed seat (1) and driven by a second electric push rod. The cross-axis placement component (3) is composed of a disk and four limit rods. The disk is arranged above the fixed seat (1). The four limit rods are all installed on the disk. The cross-axis (4) is limited by the four limit rods, and the cross-axis is driven to move horizontally by the second horizontal moving component (2).

4. A cross-shaft end face symmetry measuring device according to claim 1, characterized in that: A positioning hole (21) is formed on the adjustment seat (7), and a positioning cylinder (16) is installed on the V-shaped replacement block (15), wherein the positioning cylinder (16) is adapted to the positioning hole (21).

5. The cross-shaft end face symmetry measuring device according to claim 1, characterized in that: An adjusting groove (18) is provided on the adjusting seat (7), a holding block (19) is slidably mounted in the adjusting groove (18), one side of the holding block (19) extends outside the adjusting groove (18) and is arranged in an L-shape, a return spring (20) is arranged in the adjusting groove (18), the return spring (20) is connected to the holding block (19), and a holding groove (17) is provided on the V-shaped replacement block (15), the holding groove (17) is arranged in an L-shape, and the holding groove (17) is adapted to the holding block (19).

6. A device for measuring the symmetry of a cross shaft end surface according to claim 1, characterized in that: A detection assembly (14) is arranged on the adjustment seat (7). The detection assembly (14) is composed of a lifting frame and two contact sensors. The lifting frame is mounted on the adjustment seat (7). The two contact sensors are arranged on the lifting frame. The two contact sensors are symmetrically arranged. The two contact sensors are respectively in contact with the inner walls on both sides of the V-shaped replacement block (15).

7. The cross-shaft end surface symmetry measuring device according to claim 1, characterized in that: Two correction plates are mounted on the fixing seat (1), and the two correction plates are symmetrically arranged.

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