Four-shaft nut servo pressing machine

Abstract

The utility model relates to a four-axis nut servo press-fitting machine which comprises a horizontally-arranged station table, a Y-axis transverse moving mechanism horizontally arranged on the upper surface of the station table, a workpiece positioning assembly arranged on a movable terminal of the Y-axis transverse moving mechanism, a detection mechanism and a press-fitting mechanism, wherein the detection mechanism and the press-fitting mechanism are arranged above the Y-axis transverse moving mechanism. The detection mechanism comprises a horizontally arranged detection camera and a lifting driving module for driving the detection camera to lift; the press-fitting mechanism comprises a pressure head assembly and an X-Z axis driving module for driving the pressure head assembly to move; the pressure head assembly comprises a pressure head body which is vertically arranged downwards, a fixing seat for fixing the pressure head body, and a connecting unit for connecting the fixing seat to a longitudinal movable terminal of the XZ-axis driving module; a positioning part for positioning the pressing head body when the pressing head body moves upwards in place is also arranged on the fixed seat; according to the utility model, the press-fitting position of the workpiece can be detected with high precision and can be fed back to a background system in time, so that an operator can take corresponding measures conveniently, and the processing yield is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automated production, in particular to a four-axis nut servo press machine. Background Art

[0002] The press-fitting machine is a new type of mechatronic precision machine tool, which is widely used for press-fitting and assembly of various parts and components; stamping, molding and pressure assembly of metal and non-metal parts. With the development of my country's industrial modernization, especially the development of the automotive and electronics industries, the requirements for assembly precision are getting higher and higher. It is hoped that the press-fitting process and results can be tested while completing the press-fitting. In addition, the requirements for the flexibility of the equipment are improved. It is hoped that the press-fitting operation of various products can be realized by modifying the setting parameters of the equipment.

[0003] At present, in the production process of capacitors, most factories use air compressors to assemble nuts, which cannot guarantee the press-fitting quality and the highly uniform position after press-fitting, and cannot detect the placement status of the nuts before press-fitting. All of them are done through manual visual inspection on site. Since the nuts are often placed crookedly, once they are placed crooked, the capacitor nuts will be directly pressed and scrapped. Therefore, in order to ensure production quality and efficiency and reduce the defective rate, it is necessary to design a new press-fitting machine to meet production needs. Utility Model Content

[0004] The purpose of the utility model is to provide a four-axis nut servo press machine to address the deficiencies in the prior art, and the four-axis nut servo press machine can well solve the above problems.

[0005] In order to achieve the above requirements, the technical solution adopted by the utility model to solve its technical problems is:

[0006] A four-axis nut servo press is provided, which includes a horizontally arranged work station, a Y-axis lateral movement mechanism horizontally arranged on the upper surface of the work station, a workpiece positioning assembly arranged on the movable terminal of the Y-axis lateral movement mechanism, and a detection mechanism and a press mechanism arranged above the Y-axis lateral movement mechanism; the detection mechanism includes a horizontally arranged detection camera, and a lifting drive module for driving the detection camera to rise and fall; the press mechanism includes a press head assembly, and an XZ-axis drive module for driving the press head assembly to move; the press head assembly includes a press head body arranged vertically downward, a fixed seat for fixing the press head body, and a connecting unit for connecting the fixed seat to the longitudinal movable terminal of the XZ-axis drive module; the press head body is longitudinally slidably connected to the fixed seat, and the fixed seat is also provided with a positioning portion for positioning the press head body when it moves up to the position.

[0007] The four-axis nut servo press described in the utility model, wherein the press head body is columnar, and a positioning groove adapted to the upper end of the press head body is provided on the lower end face of the fixed seat, the side wall of the press head body is slidably matched with the inner wall of the positioning groove, and the lower end of the fixed seat is provided with a stopper to prevent the press head body from escaping from the positioning groove.

[0008] The four-axis nut servo press described in the utility model, wherein the stop piece is an annular structure and is coaxially arranged on the lower end face of the fixed seat, and a limiting groove is provided on the side wall of the pressing head body corresponding to the stop piece, and the height of the limiting groove is greater than the thickness of the stop piece. When assembled in place, the inner side wall of the stop piece is located in the limiting groove.

[0009] The four-axis nut servo press described in the utility model, wherein an annular positioning platform is provided on the side wall of the pressing head body below the stop member, the outer diameter of the annular positioning platform is larger than the inner diameter of the stop member, and the stop member and the lower surface of the fixing seat together form the positioning portion.

[0010] The four-axis nut servo press described in the utility model, wherein the connecting unit includes a connecting seat detachably connected to the fixing seat, and a disc pressure sensor detachably arranged on the upper end of the connecting seat; the disc pressure sensor is arranged on the longitudinal movable terminal of the XZ-axis driving module.

[0011] The four-axis nut servo press described in the utility model, wherein the workpiece positioning assembly includes a positioning plate fixed on the movable terminal of the Y-axis transverse movement mechanism, and two positioning cylinders arranged on the upper surface of the positioning plate opposite to each other on the left and right sides; the positioning cylinders are angle cylinders.

[0012] The four-axis nut servo press described in the utility model, wherein an adjustment module for adjusting the horizontal position of the detection camera is provided on the movable terminal of the lifting drive module, and the adjustment module includes an X-axis slide rail horizontally fixed on the movable terminal of the lifting drive module, and a Y-axis slide rail slidably arranged on the X-axis slide rail, and a slide seat slidably arranged on the Y-axis slide rail; the detection camera is fixed on the slide seat through a mounting frame.

[0013] The four-axis nut servo press described in the utility model, wherein the movable terminal of the lifting drive module is located at both ends of the X-axis slide rail and is horizontally provided with X-axis adjustment screws for adjusting the position of the Y-axis slide rail, and the two ends of the Y-axis slide rail are horizontally provided with Y-axis adjustment screws for adjusting the position of the slide seat.

[0014] The four-axis nut servo press machine described in the utility model, wherein the Y-axis lateral movement mechanism, the XZ-axis drive module and the lifting drive module are all screw motor linear modules.

[0015] The beneficial effect of the utility model is that when working, the operator places the workpiece on the workpiece positioning assembly, drives the workpiece positioning assembly to move horizontally and reset through the Y-axis transverse movement mechanism, and then drives the pressure head assembly to descend through the XZ-axis drive module and align it with the reset workpiece positioning assembly. After alignment, the detection camera is driven to descend through the lifting drive module and align it with the workpiece at a horizontal angle and perform pre-pressing position detection. If the workpiece position is accurate, the workpiece is pressed into place through the pressure head assembly, and then the pressing position of the workpiece can be detected with high precision, which can be fed back to the background system in time, making it convenient for the operator to implement corresponding measures and ensure the processing yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0017] Figure 1 It is an overall bird's-eye view of the four-axis nut servo press machine of the utility model.

[0018] Figure 2 This is a bird's-eye view from another perspective of the four-axis nut servo press machine of the utility model.

[0019] Figure 3 yes Figure 2 A magnified view of the local structure.

[0020] Figure 4 It is a side view of the utility model four-axis nut servo press machine.

[0021] Figure 5 yes Figure 4 Yes, AA section view.

[0022] Figure 6 yes Figure 5 A magnified view of the local structure.

[0023] Figure 7 yes Figure 4 BB cross-sectional view. DETAILED DESCRIPTION

[0024] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0027] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0029] The four-axis nut servo press machine of the preferred embodiment of the utility model is as follows Figure 1-7As shown, the press machine includes a horizontally arranged work station 10, a Y-axis lateral movement mechanism 20 horizontally arranged on the upper surface of the work station 10, a workpiece positioning assembly 30 arranged on the movable terminal 21 of the Y-axis lateral movement mechanism 20, and a detection mechanism 40 and a press mechanism 50 arranged above the Y-axis lateral movement mechanism 20. Among them, the detection mechanism 40 includes a horizontally arranged detection camera 41, and a lifting drive module 42 for driving the detection camera 41 to rise and fall. The press mechanism 50 includes a press head assembly 51, and an XZ-axis driving module 52 for driving the press head assembly 51 to move. The press head assembly 51 includes a press head body 511 arranged vertically downward, a fixed seat 512 for fixing the press head body 511, and a connecting unit 513 for connecting the fixed seat 512 to the longitudinal movable terminal 521 of the XZ-axis driving module 52. The ram body 511 is connected to the fixed seat 512 by longitudinal sliding, and the fixed seat 512 is also provided with a positioning part 70 for positioning the ram body 511 when it moves up to the right position. During operation, the operator places the workpiece on the workpiece positioning assembly 30, and after the workpiece positioning assembly 30 is driven to move horizontally and reset by the Y-axis transverse movement mechanism 20, the ram assembly 51 is driven to descend and align with the reset workpiece positioning assembly 30 by the XZ-axis drive module 52. After alignment, the detection camera 41 is driven to descend by the lifting drive module and align with the workpiece at a horizontal angle and perform pre-pressing position detection. If the workpiece position is accurate, the workpiece is pressed into place by the ram assembly 51, and then the pressing position of the workpiece can be detected with high precision, which can be fed back to the background system in time, so that the operator can implement corresponding measures to ensure the processing yield.

[0030] In this embodiment, the ram body 511 is columnar, and a positioning groove 80 adapted to the upper end of the ram body 511 is provided on the lower end surface of the fixed seat 512, and the side wall of the ram body 511 is longitudinally slidably matched with the inner wall of the positioning groove 80, and a stopper 90 is provided at the lower end of the fixed seat 512 to prevent the ram body 511 from slipping out of the positioning groove 80. Among them, the stopper 90 is an annular structure and is coaxially arranged on the lower end surface of the fixed seat 512, and a limiting groove 100 is provided on the side wall of the ram body 511 corresponding to the stopper 90, and the height of the limiting groove 100 is greater than the thickness of the stopper 90. When assembled in place, the inner side wall of the stopper 90 is located in the limiting groove 100, so that the ram body 511 can move up and down within a certain stroke, so as to provide a buffer in the early stage of the ram body 511 contacting the workpiece nut.

[0031] In this embodiment, an annular positioning platform 110 is provided on the side wall of the ram body 511 below the stopper 90. The outer diameter of the annular positioning platform 110 is larger than the inner diameter of the stopper 90. The stopper 90 and the lower surface of the fixing seat 512 together form a positioning portion 70. The upper end of the ram body 511 is provided with a piston ring 120 adapted to the inner wall of the positioning groove 80. The ram body 511 is longitudinally damped and slidably matched with the inner wall of the positioning groove 80 through the piston ring 120 to ensure the axial stability of the movement of the ram body 511. When the annular positioning platform 110 is upwardly abutted against the lower surface of the stopper 90, the lower surface of the stopper 90 contacts the inner wall below the limiting groove 100 to prevent the stopper from being squeezed and deformed.

[0032] In this embodiment, the connection unit 513 includes a connection seat 5131 detachably connected to the fixing seat 512, and a disc pressure sensor 5132 detachably arranged on the upper end of the connection seat 5131. The disc pressure sensor 5132 is arranged on the longitudinal movable terminal 521 of the XZ axis driving module 52. The disc pressure sensor 5132 can accurately obtain the pressure applied by the pressure head body 511 on the workpiece, so that the background system can get feedback in time, ensure the accuracy of system control, and further improve the automation degree of the equipment.

[0033] In this embodiment, the workpiece positioning assembly 30 includes a positioning plate 31 fixed on the movable terminal 21 of the Y-axis transverse movement mechanism 20, and two positioning cylinders 32 arranged on the upper surface of the positioning plate 31 on the left and right sides; the positioning cylinder 32 is an angle cylinder, and the positioning of the fixture can be achieved through the rotation and telescopic functions of the angle cylinder, which is convenient for placing workpieces in batches on the fixture for positioning and realizing batch processing. It has a simple structure and is easy to operate.

[0034] In this embodiment, an adjustment module 130 for adjusting the horizontal position of the detection camera 41 is provided on the movable terminal 421 of the lifting drive module 42. The adjustment module 130 includes an X-axis slide rail 131 horizontally fixed on the movable terminal 421 of the lifting drive module 42, and a Y-axis slide rail 132 slidably set on the X-axis slide rail 131, and a slide seat 133 slidably set on the Y-axis slide rail 132; the detection camera 41 is fixed on the slide seat 133 through the mounting frame 140, and the position of the detection camera 41 can be adjusted through the adjustment module 130 to adapt to the requirements of different detection positions of different products.

[0035] In this embodiment, X-axis adjustment screws 150 for adjusting the position of the Y-axis slide rail 132 are horizontally arranged at both ends of the movable terminal 421 of the lifting drive module, and Y-axis adjustment screws 160 for adjusting the position of the slide seat 133 are horizontally arranged at both ends of the Y-axis slide rail 132 to play a role in positioning and adjustment to prevent the detection camera 41 from moving by itself.

[0036] In this embodiment, the Y-axis lateral movement mechanism 20, the XZ-axis drive module 52 and the lifting drive module are all screw motor linear modules, wherein the XZ drive module 52 is composed of screw motor modules in the X-axis and Z-axis direction areas.

[0037] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A four-axis nut servo press machine, characterized in that: The press machine includes a horizontally arranged work station, a Y-axis transverse movement mechanism horizontally arranged on the upper surface of the work station, a workpiece positioning assembly arranged on the movable terminal of the Y-axis transverse movement mechanism, and a detection mechanism and a press mechanism arranged above the Y-axis transverse movement mechanism; the detection mechanism includes a horizontally arranged detection camera, and a lifting and lowering driving module for driving the detection camera to rise and fall; the press mechanism includes a press head assembly, and an XZ-axis driving module for driving the press head assembly to move; the press head assembly includes a press head body arranged vertically downward, and a fixed seat for fixing the press head body, and a connecting unit connecting the fixed seat to the longitudinal movable terminal of the XZ-axis driving module; the press head body is longitudinally slidably connected to the fixed seat, and the fixed seat is also provided with a positioning part for positioning the press head body when it moves up into place.

2. The four-axis nut servo press machine according to claim 1, characterized in that: The pressure head body is columnar, and a positioning groove adapted to the upper end of the pressure head body is provided on the lower end surface of the fixing seat, the side wall of the pressure head body is slidably matched with the inner wall of the positioning groove, and a stopper is provided at the lower end of the fixing seat to prevent the pressure head body from escaping from the positioning groove.

3. The four-axis nut servo press machine according to claim 2, characterized in that: The stop member is an annular structure and is coaxially arranged on the lower end face of the fixed seat. A limiting groove is provided on the side wall of the pressure head body corresponding to the stop member. The height of the limiting groove is greater than the thickness of the stop member. When assembled in place, the inner side wall of the stop member is located in the limiting groove.

4. The four-axis nut servo press machine according to claim 3, characterized in that: An annular positioning platform is provided on the side wall of the pressure head body below the stopper, the outer diameter of the annular positioning platform is larger than the inner diameter of the stopper, and the stopper and the lower surface of the fixing seat together form the positioning portion.

5. The four-axis nut servo press machine according to claim 1, characterized in that: The connecting unit includes a connecting seat detachably connected to the fixing seat, and a disc-type pressure sensor detachably arranged on the upper end of the connecting seat; the disc-type pressure sensor is arranged on the longitudinal movable terminal of the XZ-axis driving module.

6. The four-axis nut servo press machine according to claim 1, characterized in that: The workpiece positioning assembly includes a positioning plate fixed on the movable terminal of the Y-axis lateral movement mechanism, and two positioning cylinders arranged on the upper surface of the positioning plate opposite to each other on the left and right sides; the positioning cylinders are angle cylinders.

7. The four-axis nut servo press machine according to claim 1, characterized in that: An adjustment module for adjusting the horizontal position of the detection camera is provided on the movable terminal of the lifting drive module, and the adjustment module includes an X-axis slide rail horizontally fixed on the movable terminal of the lifting drive module, a Y-axis slide rail slidably arranged on the X-axis slide rail, and a slide seat slidably arranged on the Y-axis slide rail; the detection camera is fixed on the slide seat through a mounting frame.

8. The four-axis nut servo press machine according to claim 7, characterized in that: X-axis adjusting screws for adjusting the position of the Y-axis slide rail are horizontally arranged at both ends of the X-axis slide rail on the movable terminal of the lifting drive module, and Y-axis adjusting screws for adjusting the position of the slide seat are horizontally arranged at both ends of the Y-axis slide rail.

9. The four-axis nut servo press machine according to claim 1, characterized in that: The Y-axis lateral movement mechanism, the XZ-axis drive module and the lifting drive module are all screw motor linear modules.

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