Cross pack assembly assembly detection device and detection method

Abstract

The application discloses a cross pack assembly assembling detection device and detection method, and belongs to the technical field of coupling equipment. It comprises a bearing component, a workbench, a base and a baffle on the workbench, two track grooves arranged in parallel along the center line of the base and the baffle, a first circular surface of the baffle, a driving component, a power mechanism, a track pressing plate and a guide rod, the power mechanism being arranged in the base and connected with one end of the track pressing plate, the guide rod being movably arranged in the base and connected with one end of the track pressing plate, a protrusion arranged on the lower end surface of the track pressing plate and matched with the track groove, a second circular surface of the track pressing plate, the first circular surface and the second circular surface being matched with the outer contour of the bearing seat of the cross pack assembly respectively, a control component, a PLC controller, and the PLC controller being electrically connected with the power mechanism. The cross shaft assembly is pressed, D1, D2 and D3 are detected, the pad matching grinding amount is adjusted according to the size, and the stop gap is controlled.

Description

Technical Field

[0001] This invention belongs to the technical field of coupling equipment, and more specifically, relates to a cross-shaped coupling assembly assembly testing device and testing method. Background Technology

[0002] Bearing-mounted universal joints offer advantages such as high load-bearing capacity, high transmission efficiency, and smooth transmission. Typically, the lower end of the bearing housing has a boss key structure, and the fork flange has a groove structure. Under the engagement of bolts, the boss key on the bearing housing and the groove on the fork flange are connected. For example... Figures 1 to 3 As shown, to ensure flexible joint movement and noiseless joint transmission, the thickness of the shim for the cross shaft assembly needs to be adjusted by grinding to control the axial clearance of the cross shaft assembly and ensure smooth and normal joint operation. However, due to the lack of a positioning plane during the trial assembly and testing of the bearing seat type cross shaft assembly, the test data for the corresponding bearing seat arc surface is inaccurate, making it impossible to accurately calculate the shim thickness.

[0003] To address the aforementioned issues, a search revealed Chinese patent CN201310186865.7, which discloses a tooling for dynamic balancing testing of a cross-shaft universal coupling. This tooling includes a body with mounting holes for connecting to the universal coupling and flange mounting holes for connecting to the flange of a dynamic balancing machine. The body also features an annular protrusion adapted to the end of the universal coupling. Analysis shows that this device cannot measure the data of bearing housings D1, D2, and D3, and therefore cannot obtain the stop dimensions of the fork flange. Therefore, further improvements to the relevant technology are needed to meet production requirements. Summary of the Invention

[0004] 1. The problem to be solved

[0005] To address the difficulty in measuring bearing housings D1, D2, and D3 in existing technologies, this invention provides a cross-shaft assembly assembly inspection device that accurately measures bearing housings D1, D2, and D3, thereby calculating the stop dimensions of the cross-shaft assembly and improving assembly accuracy.

[0006] Another object of the present invention is to provide a method for manufacturing a cross-shaped assembly testing device as described above.

[0007] 2. Technical Solution

[0008] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0009] The cross-shaped package assembly inspection device of the present invention includes:

[0010] The supporting component includes a worktable, on which a base and a baffle are provided, and two track grooves are arranged parallel to the center line connecting the center of the base and the baffle; the baffle has a first arc surface.

[0011] The driving component includes a power mechanism, a track pressure plate, and a guide rod. The power mechanism is placed in the base and one end is connected to the track pressure plate.

[0012] The guide rod is movably placed in the base, and one end of it is connected to the track pressure plate; the lower end face of the track pressure plate is provided with a protrusion that cooperates with the track groove; the track pressure plate has a second arc surface; the first arc surface and the second arc surface respectively cooperate with the outer contour of the bearing seat of the cross-shaped assembly;

[0013] The control unit includes a PLC controller, which is electrically connected to the power mechanism.

[0014] In one possible embodiment of the present invention, the power mechanism is a hydraulic rod, a motor screw, an electric actuator screw, or a manually operated rotary screw.

[0015] In one possible embodiment of the present invention, the guide rod is provided with a copper sleeve, which is fixed in the base.

[0016] In one possible embodiment of the present invention, a wear-resistant layer is formed on the surface of the worktable.

[0017] In one possible embodiment of the present invention, a pressure gauge is provided between the power mechanism and the track pressure plate, and the pressure gauge is electrically connected to the PLC controller.

[0018] In one possible embodiment of the present invention, two conductive plates are further included. The two conductive plates are placed on the worktable outside or inside the track groove. The center line connecting the two conductive plates is perpendicular to the center line connecting the base and the baffle. The conductive plates are electrically connected to the PLC controller.

[0019] In one possible embodiment of the present invention, the conductive plate includes a conductive contact mounting plate, K conductive contacts, K springs, and a conductive sheet with a live wire; the conductive contact mounting plate is fixed to the workbench, and the conductive contact mounting plate is provided with K recessed holes, the nth conductive contact is disposed in the nth recessed hole of the conductive contact mounting plate, and the nth spring is fitted onto the nth conductive contact; the conductive sheet with a live wire is fixed to the other end of the K springs, where K is a natural number greater than 2; and n is a natural number greater than 0 and less than K.

[0020] In one possible embodiment of the present invention, the conductive sheet with the wire is a copper sheet; and the springs are all compression springs.

[0021] In one possible embodiment of the present invention, the array of recessed holes is arranged on a conductive contact mounting plate.

[0022] The present invention also provides a method for assembling and inspecting a cross-shaped package assembly, comprising the following steps:

[0023] Step S101: Install the bearing housings symmetrically on the head of the cross shaft, and then place them on the worktable with the key end of the bearing housing facing upwards.

[0024] Step S102: Start the power unit to drive the track pressure plate, bearing seat and cross shaft to move together. At the same time, use the conductive plate to adjust their position so that the center line of the cross assembly is perpendicular to the center line connecting the base and the baffle. Set the pressure value of the pressure gauge to X. When the pressure value reaches the value of X, the PLC controller feeds back a signal to the power mechanism and stops working.

[0025] Step S103: Measure the values ​​at points D1, D2, and D3 corresponding to the bearing housing to calculate the wear amount of the adjusting shim, thereby controlling the joint stop clearance.

[0026] 3. Beneficial effects

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] The cross-shaped assembly assembly inspection device of the present invention drives the track pressure plate through a power mechanism. The track pressure plate has symmetrical protrusions that cooperate with the track groove. At the same time, the track pressure plate is positioned by a guide rod. The key end of the bearing seat faces upward, so that the key face plane contacts the worktable and positions the large plane. Simultaneously, the track pressure plate is axially pushed to press the cross shaft assembly, and D1, D2, and D3 are detected. The shim grinding amount is calculated and adjusted according to the dimensions, thereby controlling the joint stop fit clearance. Attached Figure Description

[0029] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, unless specifically indicated, these drawings are intended only to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0030] Figure 1 This is a schematic diagram of the structure of the prior art cross-shaped package assembly of the present invention;

[0031] Figure 2 This is a schematic diagram of the fork flange of the cross-shaped assembly in the prior art of this invention;

[0032] Figure 3 This is a schematic diagram of the structure of the bearing housing of the cross-shaped assembly in the prior art of this invention;

[0033] Figure 4 This is a schematic diagram of the cross-shaped package assembly testing device of the present invention;

[0034] Figure 5 This is a schematic diagram showing the usage status of the cross-shaped package assembly testing device of the present invention;

[0035] Figure 6 This is a schematic diagram of the conductive plate structure of the cross-shaped package assembly testing device of the present invention;

[0036] Figure 7 for Figure 6 Enlarged view of part A.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Supporting component; 11. Worktable; 12. Base; 13. Baffle; 131. First arc surface; 14. Track groove;

[0039] 20. Drive component; 21. Power mechanism; 22. Track pressure plate; 221. Protrusion; 222. Second arc surface; 23. Guide rod; 24. Pressure gauge;

[0040] 30. Conductive plate; 31. Conductive contact mounting plate; 32. Conductive contact; 33. Spring; 34. Conductive sheet with wire;

[0041] 40. Cross-shaped assembly; 41. Bearing housing; 42. Cross shaft; 43. Fork flange; 431. Stop. Detailed Implementation

[0042] The following detailed description of exemplary embodiments of the invention is taken with reference to the accompanying drawings, which form part of the description and illustrate exemplary embodiments in which the invention may be practiced. While these exemplary embodiments have been described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be implemented and various changes may be made to the invention without departing from the spirit and scope thereof. The more detailed description of embodiments of the invention below is not intended to limit the scope of the claimed invention, but is merely illustrative and not restrictive of the description of the features and characteristics of the invention, to suggest the best mode for carrying out the invention, and is sufficient to enable those skilled in the art to practice the invention. Therefore, the scope of the invention is defined only by the appended claims.

[0043] The following detailed description and exemplary embodiments of the invention can be better understood in conjunction with the accompanying drawings, wherein the elements and features of the invention are identified by reference numerals.

[0044] Example 1

[0045] like Figures 4 to 7 As shown, the cross-shaped package assembly 40 assembly testing device of this embodiment includes:

[0046] The supporting component 10 includes a worktable 11, on which a base 12 and a baffle 13 are provided. Two track grooves 14 are arranged parallel to the center line connecting the base 12 and the baffle 13. The baffle 13 has a first arc surface 131.

[0047] Considering the friction caused by the cross-shaped assembly 40 moving back and forth on the worktable 11, the wear of the worktable 11 is minimized. Therefore, a wear-resistant layer is formed on the surface of the worktable 11. This wear-resistant layer can be a non-metallic ceramic layer, which is not only wear-resistant but also easy to clean.

[0048] The driving component 20 includes a power mechanism 21, a track pressure plate 22, and a guide rod 23. The power mechanism 21 is placed in the base 12, and one end of it is connected to the track pressure plate 22. The power mechanism 21 can be a hydraulic rod, a motor screw, an electric push screw, or a manual rotating screw. In this embodiment, a hydraulic rod is preferred because it provides more precise control and stable operation.

[0049] In this embodiment, the guide rod 23 is movably positioned within the base 12. The guide rod 23 is fitted with a copper sleeve, which is fixed within the base 12. The flexibility of the copper sleeve reduces wear on the guide rod 23, thereby improving detection accuracy. One end of the guide rod 23 is connected to the track pressure plate 22. The lower end face of the track pressure plate 22 has a protrusion 221 that engages with the track groove 14. The track pressure plate 22 has a second arc surface 222.

[0050] like Figure 5 As shown, the first arc surface 131 and the second arc surface 222 respectively mate with the outer contour of the bearing seat 41 of the cross-shaped assembly 40. That is, the first arc surface 131 and the second arc surface 222 are selected according to the outer contour of the bearing seat 41, so that the first arc surface 131 and the second arc surface 222 mate with the outer contour of the bearing seat 41 as well as possible.

[0051] The control unit includes a PLC controller (not shown in the figure), which is electrically connected to the power mechanism 21.

[0052] The detection device of the present invention has a pressure gauge 24 installed between the power mechanism 21 and the track pressure plate 22. The pressure gauge 24 is electrically connected to the PLC controller. When the power mechanism 21 squeezes the track pressure plate 22, it indirectly reflects the tightness between the bearing seat 41 and the cross shaft 42, thereby accurately determining the endpoint of the detection.

[0053] exist Figure 4 In the process, two conductive plates 30 are placed on the worktable 11 on the outside or inside of the track groove 14. The center line connecting the two conductive plates 30 is perpendicular to the center line connecting the base 12 and the baffle 13. The conductive plates 30 are electrically connected to the PLC controller.

[0054] Furthermore, the conductive plate 30 is encased in a rubber sleeve and includes a conductive contact 32 mounting plate 31, K conductive contacts 32, K springs 33, and a conductive sheet 34 with a live wire. The conductive contact 32 mounting plate 31 is fixed to the workbench 11. The conductive contact 32 mounting plate 31 has K recessed holes. The nth conductive contact 32 is located in the nth recessed hole of the conductive contact 32 mounting plate 31, and the nth spring 33 is fitted onto the nth conductive contact 32. The conductive sheet 34 with a live wire is fixed to the other end of the K springs 33, where K is a natural number greater than 2 and n is a natural number greater than 0 and less than K. The conductive sheet 34 with a live wire is made of copper. All springs 33 are compression springs. The recessed hole matrix array is arranged on the conductive contact 32 mounting plate 31.

[0055] In this example, K=25, and the conductive contacts 32 on the two conductive plates 30 correspond one-to-one. When the cross-shaped assembly 40 is tilted, the conductive plates 30 pressed at both ends will generate different electrical signals, thereby reminding the operator to adjust the position of the cross-shaped assembly 40.

[0056] Specifically, when the cross shafts 42 at both ends of the cross assembly 40 press against the conductive plate 30, the rubber sleeve causes the copper sheet to be pressed down. At this time, the copper sheet carries the negative electrode (in the initial state, the copper sheet always carries the negative electrode signal; the negative electrode signal carried by the copper sheet is transmitted to the conductive contact 32 through contact with the conductive contact 32, which then generates a signal feedback to the controller). After the copper sheet is pressed down, it contacts the conductive contact 32. The 25 conductive contacts 32 are connected to the controller (not marked in the figure). The state of the conductive contacts 32 that are connected at this time, i.e., carrying the negative electrode, is analyzed to see if they correspond one-to-one, thus generating different electrical signals.

[0057] The assembly and inspection method for the cross-shaped package assembly 40 of the present invention includes the following steps:

[0058] Step S101: Install the bearing housing 41 symmetrically on the shaft head of the cross shaft 42, and then place it on the worktable 11 with the key end of the bearing housing 41 facing upward.

[0059] Step S102: Start the power unit to drive the track pressure plate 22, bearing seat 41 and cross shaft 42 to move together. At the same time, use the conductive plate 30 to adjust their position so that the center line of the cross assembly 40 is perpendicular to the center line connecting the base 12 and the baffle 13. Set the pressure value of the pressure gauge 24 to X. When the pressure value reaches the value of X, the PLC controller feeds back a signal to the power mechanism 21 and stops working.

[0060] Step S103: Measure the values ​​at points D1, D2, and D3 corresponding to the bearing housing 41 respectively, and calculate the adjustment shim wear amount to control the mating clearance of the stop 431 of the joint fork flange 43.

[0061] In this embodiment, for example, the pressure value of the pressure gauge 24 is set to 2MPa. When the pressure value reaches 2MPa, the PLC controller sends a signal to the power mechanism 21 to stop working.

[0062] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cross-shaped package assembly testing device, characterized in that, include: The supporting component (10) includes a worktable (11), on which a base (12) and a baffle (13) are provided. Two track grooves (14) are arranged parallel to the center line connecting the base (12) and the baffle (13). The baffle (13) has a first arc surface (131). The driving component (20) includes a power mechanism (21), a track plate (22) and a guide rod (23). The power mechanism (21) is placed in the base (12) and one end of it is connected to the track plate (22). The guide rod (23) is movably placed in the base (12), and one end of it is connected to the track pressure plate (22); the lower end face of the track pressure plate (22) is provided with a protrusion (221) that cooperates with the track groove (14); the track pressure plate (22) has a second arc surface (222); the first arc surface (131) and the second arc surface (222) respectively cooperate with the outer contour of the bearing seat (41) of the cross-shaped assembly (40); The control component includes a PLC controller electrically connected to the power mechanism (21); it also includes two conductive plates (30), each conductive plate (30) including a conductive contact mounting plate (31), K conductive contacts (32), K springs (33), and a conductive sheet with a live wire (34); the conductive contact mounting plate (31) is fixed to the workbench (11), the conductive contact mounting plate (31) has K groove holes, the nth conductive contact (32) is set in the nth groove hole of the conductive contact mounting plate (31), and the nth spring (33) is fitted on the nth conductive contact (32); the conductive sheet with a live wire (34) is fixed to the other end of the K springs (33), where K is a natural number greater than 2 and n is a natural number greater than 0 and less than K.

2. The cross-shaped package assembly testing device according to claim 1, characterized in that, The power mechanism (21) is a hydraulic rod, a motor screw, an electric push screw, or a manually rotating screw.

3. The cross-shaped package assembly testing device according to claim 2, characterized in that, The guide rod (23) is equipped with a copper sleeve, which is fixed in the base (12).

4. The cross-shaped package assembly testing device according to claim 3, characterized in that, A wear-resistant layer is formed on the surface of the worktable (11).

5. The cross-shaped package assembly testing device according to claim 4, characterized in that, A pressure gauge (24) is provided between the power mechanism (21) and the track pressure plate (22), and the pressure gauge (24) is electrically connected to the PLC controller.

6. The cross-shaped package assembly assembly testing device according to any one of claims 1-5, characterized in that, The two conductive plates (30) are placed on the worktable (11) outside or inside the track groove (14). The center line connecting the two conductive plates (30) is perpendicular to the center line connecting the base (12) and the baffle (13). The conductive plates (30) are electrically connected to the PLC controller.

7. The cross-shaped package assembly testing device according to claim 6, characterized in that, The conductive sheet (34) with the wire is a copper sheet; the springs (33) are all compression springs.

8. The cross-shaped assembly assembly testing device according to claim 7, characterized in that, The array of recessed holes is arranged on the conductive contact mounting plate (31).

9. A method for inspecting the assembly of a crossbody bag, using the crossbody bag assembly inspection device according to any one of claims 1-8, characterized in that, Includes the following steps: Step S101: Install the bearing housing (41) symmetrically on the head of the cross shaft (42), and then place it on the worktable (11) with the key end of the bearing housing (41) facing upward; Step S102: Start the power unit to drive the track pressure plate (22), bearing seat (41), and cross shaft (42) to move together. At the same time, use the conductive plate (30) to adjust their position so that the center line of the cross assembly (40) is perpendicular to the center line connecting the base (12) and the baffle (13). Set the pressure value of the pressure gauge (24) to X. When the pressure value reaches the value of X, the PLC controller feeds back a signal to the power mechanism (21) and stops working. Step S103: Measure the values ​​at D1, D2 and D3 corresponding to the bearing housing (41) respectively, and calculate the adjustment pad wear amount to control the joint stop (431) fit clearance.

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