Numerical control horizontal movement positioning device

Abstract

The utility model discloses a numerical control horizontal movement positioning device belongs to numerical control movement positioning equipment technical field. Including horizontal casing, drive arrangement and linear motion mechanism, horizontal casing is provided with the installation cavity, and the side wall of installation cavity is provided with the first horizontal groove, and drive arrangement is installed at one end place inside installation cavity, linear motion mechanism includes screw rod, linear motion seat and slide rail, and screw rod is horizontally and rotatably arranged in the installation cavity, and linear motion seat is screwed on the screw rod, and slide rail is horizontally installed on the first horizontal groove, and the lower end plane of slide rail is connected with the bottom surface of first horizontal groove, and the side portion of linear motion seat is slidably clamped on the slide rail. Solve the traditional horizontal direction movement's numerical control movement positioning linear axle bolt under shearing force and produce loosening, deformation and other negative problems, and then cause the technical problem of screw rod to be pressed down pressure and cause poor precision or damage.

Description

Technical Field

[0001] This utility model relates to the field of CNC mobile positioning equipment technology, and in particular to a CNC horizontal mobile positioning device. Background Technology

[0002] A CNC linear positioning device is a servo motion mechanism directly controlled by the NC system in a CNC system. It can be used for workpiece movement and positioning, such as linear axes (X / Y / Z) or rotary axes (A / B / C) in a machining center. Traditional horizontal CNC linear positioning axes often use lead screws and lead screw-slider structures to provide linear motion, supported by slide rails mounted on the side of the housing. However, these slide rails are fixed to the housing by horizontal bolts, causing the load to act on the slide rails while the load force acts on the horizontally mounted bolts, resulting in vertical shear forces on the bolts. In the automated machining of automotive body-in-white, workpieces need to be mounted on traditional CNC linear positioning axes for movement and positioning. The load acting on the CNC linear positioning axis during workpiece movement is a dynamic load. The combined load formed by the additional forces exerted on the workpiece after it reaches its position and during machining is a static load, which is generally greater than the dynamic load. Due to the alternating effects of dynamic and static loads, bolts subjected to shear force may loosen or deform, leading to a drop in the position of the slide rail. This, in turn, causes the lead screw to be subjected to downward pressure, resulting in a series of problems such as poor accuracy or damage. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned problems by providing a CNC horizontal moving positioning device. This device solves the technical problem that the use of horizontal bolts to fix the slide rail in the traditional CNC moving positioning linear axis in the horizontal direction can cause the bolts subjected to shear force to loosen or deform, which in turn leads to the slide rail position dropping and further causes the lead screw to be subjected to downward pressure, resulting in poor accuracy or damage.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A CNC horizontal moving positioning device includes a horizontal housing, a driving device, and a linear motion mechanism. The horizontal housing has a mounting cavity, and the side wall of the mounting cavity has a first horizontal groove. The driving device is installed at one end inside the mounting cavity. The linear motion mechanism includes a lead screw, a linear motion seat, and a slide rail. The lead screw is horizontally and rotatably disposed in the mounting cavity. The linear motion seat is screwed onto the lead screw. The slide rail is horizontally mounted on the first horizontal groove, and the lower end plane of the slide rail is in contact with the bottom surface of the first horizontal groove. The side of the linear motion seat is slidably engaged with the slide rail.

[0006] Furthermore, a first horizontal groove is provided on both sides of the horizontal housing, and the slide rail is installed in each of the first horizontal grooves.

[0007] Furthermore, sliders are provided on both sides of the linear motion seat, and the linear motion seat is mounted on the slide rail by means of the sliders.

[0008] Furthermore, the linear motion seat is provided with a second horizontal groove, the slider is installed in the second horizontal groove, and the top surface of the second horizontal groove abuts against the upper end surface of the slider.

[0009] Furthermore, the sliders are arranged in pairs in each of the second horizontal grooves, and each end of the second horizontal groove is provided with a slider.

[0010] Furthermore, mounting flanges are provided on both sides of the upper surface of the linear motion seat.

[0011] Furthermore, the mounting flange is provided with a first mounting hole, and the bottom surface of the horizontal housing is provided with a plurality of sets of second mounting holes, wherein the first mounting hole can be connected with the second mounting hole for installation.

[0012] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0013] 1. In use, this utility model allows for the installation of a workpiece fixture on the linear motion output end of the linear motion mechanism. A drive device drives the linear motion mechanism, moving the workpiece fixture to the workpiece clamping position. The workpiece to be processed is then mounted on the fixture, moved to the processing station for processing, and finally moved to the removal station, thus completing the processing of one workpiece for use until the next workpiece is processed. The load force transmission of this utility model involves the linear motion seat and its load acting directly on the slide rail. The lower end plane of the slide rail is connected to the bottom surface of the first horizontal groove, allowing the force of the slide rail to be directly applied to the horizontal housing. During force transmission, no shearing force is generated on the horizontal bolts fixing the slide rail. This solves the problem in traditional horizontal CNC linear positioning axes where horizontal bolts are used to fix the slide rail, leading to loosening and deformation of the bolts subjected to shearing force, causing the slide rail position to drop and further resulting in downward pressure on the lead screw, causing poor accuracy or damage.

[0014] 2. By setting a slider and having the top surface of the second horizontal groove abut against the upper end surface of the slider, the force of the linear motion seat can be directly applied to the slider. The sliding engagement between the slider and the slide rail allows the force of the slider to be directly applied to the slide rail, which facilitates the sliding of the linear motion seat and the direct transmission of force. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a three-dimensional view of part of the structure of this utility model;

[0019] Figure 5 This is a structural diagram of the linear motion seat installation of this utility model;

[0020] Figure 6 This is a structural diagram of the flexible belt movable end connection of this utility model.

[0021] In the attached diagram, b1-horizontal housing, b2-servo motor, b3-linear motion mechanism, b4-electromagnetic brake, b5-synchronous belt structure, b6-rigid top cover structure, b7-flexible dustproof structure, b8-clearance opening, b11-mounting cavity, b12-first horizontal groove, b13-second mounting hole, b31-lead screw, b32-linear motion seat, b33-slide rail, b34-slider, b61-suspension rod, b62-cover plate, b63-connector, b71-flexible belt, b72-left misaligned guide post assembly, b73-right misaligned guide post assembly, b74-clamping plate, b75-elastic element, b321-second horizontal groove, b322-mounting flange, b323-first mounting hole. Detailed Implementation

[0022] The specific implementation of the utility model will be further described below with reference to the accompanying drawings.

[0023] In the description of this utility model, it should be understood that the terms "center", "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Please see Figures 1 to 6 A CNC horizontal moving positioning device includes a housing, a drive unit, a linear motion mechanism, and a brake. The drive unit is installed inside the housing, the linear motion mechanism is installed on the housing, and the brake is used to brake the linear motion mechanism. The drive unit can drive the linear motion mechanism to output linear motion. Specifically, the housing is a horizontally arranged horizontal housing b1, which has a mounting cavity b11. The drive unit is installed at one end inside the mounting cavity b11. The linear motion mechanism is a horizontally arranged linear motion mechanism b3, which includes a lead screw b31, a linear motion seat b32, and a slide rail b33. The lead screw b31 is horizontally and rotatably arranged in the mounting cavity b11. The linear motion seat b32 is screwed onto the lead screw b31. The slide rail b33 is horizontally installed on the horizontal housing b1, and the side of the linear motion seat b32 is slidably engaged with the slide rail b33. The brake is installed at the end of the mounting cavity b11 and is also connected to the end of the lead screw b31 and can be used to brake the lead screw b31.

[0027] In this embodiment, the driving device is a servo motor b2. The servo motor b2 drives the lead screw b31 to rotate through the synchronous belt structure b5. The servo motor b2 and the lead screw b31 are arranged side by side.

[0028] In this embodiment, the side wall of the mounting cavity b11 is provided with a first horizontal groove b12. A slide rail b33 is horizontally mounted on the first horizontal groove b12, and the lower end plane of the slide rail b33 is in contact with the bottom surface of the first horizontal groove b12. The side of the linear motion seat b32 is slidably engaged with the slide rail b33. Specifically, both sides of the horizontal housing b1 are provided with first horizontal grooves b12, and slide rails b33 are installed within each first horizontal groove b12. Both sides of the linear motion seat b32 are provided with sliders b34, and the linear motion seat b32 is engaged with the slide rails b33 via the sliders b34. The linear motion seat b32 is provided with a second horizontal groove b321, and sliders b34 are installed within the second horizontal groove b321, with the top surface of the second horizontal groove b321 abutting against the upper end surface of the sliders b34. Sliders b34 are arranged in pairs within each second horizontal groove b321, with one slider b34 at each end of each second horizontal groove b321. The linear motion seat b32 has mounting flanges b322 on both sides of its upper surface. The mounting flanges b322 have first mounting holes b323, and the bottom surface of the horizontal housing b1 has several sets of second mounting holes b13. The first mounting holes b323 can be connected with the second mounting holes b13 for installation.

[0029] In this embodiment, a rigid top cover structure b6 is provided on the upper part of the horizontal housing b1, and a flexible dustproof structure b7 is provided on the side of the horizontal housing b1. The rigid top cover structure b6 covers the mounting cavity b11 of the horizontal housing b1, and a clearance opening b8 is provided between the lower end face of the rigid top cover structure b6 and the side of the mounting cavity b11. The side of the linear motion mechanism b3 extends out from the clearance opening b8 and forms an extended end. The upper end face of the extended end forms a mounting surface, and the flexible dustproof structure b7 seals the clearance opening b8.

[0030] Specifically, the rigid top cover structure b6 includes a pair of suspension rods b61 and cover plates b62. The suspension rods b61 are suspended above both sides of the mounting cavity b11, and both ends of the suspension rods b61 are fixedly connected to both ends of the horizontal housing b1. The cover plates b62 are mounted on the suspension rods b61. The suspension rods b61 are spaced apart from the upper ends of the side walls of the horizontal housing b1 to form clearance openings b8. The rigid top cover structure b6 also includes several connectors b63, which are arranged alternately between the suspension rods b61, and each end of the connector b63 is connected to a suspension rod b61. The cover plates b62 are segmented, and the connection points of adjacent cover plates b62 are located above the connectors b63.

[0031] Specifically, the flexible dustproof structure b7 includes a flexible belt b71, a left misaligned guide post assembly b72, and a right misaligned guide post assembly b73. The flexible belt b71 is tightly sealed at the clearance opening b8 of the mounting cavity b11. The left misaligned guide post assembly b72 is located at the left end of the extended end of the linear motion seat b32, and the right misaligned guide post assembly b73 is located at the right end of the extended end of the linear motion seat b32. The left misaligned guide post assembly b72 includes two left rotating posts with parallel axes, which are misaligned. The right misaligned guide post assembly b73 includes two right rotating posts with parallel axes, which are misaligned. The flexible belt b71 passes through the left and right rotating posts and is attached to the outer wall of the extended end. Clearance openings b8 are provided on both sides of the horizontal housing b1, and the linear motion seat b32 has an extended end that passes through the two clearance openings b8. Both clearance openings b8 are equipped with flexible dustproof structures b7. One end of the flexible band b71 is a fixed end, which is fixedly connected to the flat shell; the other end of the flexible band b71 is a movable end, which is connected to and tensioned by an elastic element b75. Both movable ends of the flexible bands b71 are equipped with clamping plates b74, and the flexible bands b71 are connected to the elastic elements b75 through the clamping plates b74. One end of the clamping plate b74 is used to clamp the movable end of the flexible band b71, and the two clamping plates b74 are connected to each other through the elastic element b75. The elastic element b75 is a spring, and the end of the spring is attached to the clamping plate b74.

[0032] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A CNC horizontal moving positioning device, characterized in that: The device includes a horizontal housing, a drive unit, and a linear motion mechanism. The horizontal housing has a mounting cavity, and the side wall of the mounting cavity has a first horizontal groove. The drive unit is installed at one end inside the mounting cavity. The linear motion mechanism includes a lead screw, a linear motion seat, and a slide rail. The lead screw is horizontally and rotatably disposed in the mounting cavity. The linear motion seat is screwed onto the lead screw. The slide rail is horizontally mounted on the first horizontal groove, and the lower end plane of the slide rail is in contact with the bottom surface of the first horizontal groove. The side of the linear motion seat is slidably engaged with the slide rail.

2. The CNC horizontal moving positioning device according to claim 1, characterized in that: The horizontal housing has a first horizontal groove on both sides, and the slide rail is installed in each of the first horizontal grooves.

3. The CNC horizontal moving positioning device according to claim 2, characterized in that: The linear motion seat is equipped with sliders on both sides, and the linear motion seat is mounted on the slide rail by means of the sliders.

4. The CNC horizontal moving positioning device according to claim 3, characterized in that: The linear motion seat is provided with a second horizontal groove, and the slider is installed in the second horizontal groove. The top surface of the second horizontal groove abuts against the upper end surface of the slider.

5. A CNC horizontal moving positioning device according to claim 4, characterized in that: The sliders are arranged in pairs in each of the second horizontal grooves, and each end of the second horizontal groove is provided with a slider.

6. A CNC horizontal moving positioning device according to claim 1, characterized in that: Mounting flanges are provided on both sides of the upper surface of the linear motion seat.

7. A CNC horizontal moving positioning device according to claim 6, characterized in that: The mounting flange is provided with a first mounting hole, and the bottom surface of the horizontal housing is provided with a plurality of sets of second mounting holes. The first mounting hole can be connected with the second mounting hole for installation.

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