Electric control type universal positioning device for numerical control machine tool
By designing left and right positioning structures on CNC machine tools, combined with the design of arc-shaped sleeve plates and extrusion wheels, the problem of unstable clamping of universal positioning devices in existing technologies has been solved, achieving safe and stable workpiece positioning and flexible size adaptability.
Patent Information
- Application Number
- CN202520949643.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-05-15
AI Technical Summary
Existing electrically controlled universal positioning devices for CNC machine tools only use three sets of clamping devices, resulting in a small clamping contact surface, making it difficult to prevent slippage, and the clamping is not safe, stable, or reliable.
It adopts a left and right positioning structure, and slides the slider on the X-axis linear guide. Combined with the design of the arc-shaped sleeve plate and the extrusion wheel, it achieves a semi-circular surrounding positioning and clamping. It is also equipped with a shock-absorbing damper to buffer vibration, and anti-slip protrusions to improve safety.
It achieves flexible, safe, and stable workpiece positioning, can clamp workpieces of different sizes, and is not easy to slip out, making clamping more reliable.
Smart Images

Figure CN223947390U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to numerical control machine tool technical field, concretely relates to a numerical control machine tool electric control type universal positioning device. BACKGROUND
[0002] The hot numerical control machine tool is the abbreviation of digital control machine tool, is a kind of automatic machine tool equipped with program control system, is suitable for the automatic production of large quantities of products, and the numerical control milling machine is a kind of automatic production equipment for milling workpiece, and the milling machine is used for milling the outer end face of some conventional workpiece, and for the positioning of conventional products, some flat tongs clamping, indexing head clamping and some general tools are used.
[0003] In the specification of prior art (announcement number CN109015017A) a kind of numerical control machine tool electric control type special-shaped part universal positioning device, it is mentioned "the positioning tooling includes the base that is horizontally arranged above slide table, three linear push rod motors are evenly arranged in the circumferential direction on base, circular workbench is connected with base by three linear push rod motors and control box;The bottom of three linear push rod motors is fixedly connected with base;Linear push rod motor is equipped with the push rod that can reciprocate up and down along straight line, and the top of push rod is connected on the outer circumferential side wall of workbench universally", but only three groups of clamping devices are used on the universal positioning device in prior art, clamping contact surface is small, and it is not easy to prevent skidding, clamping is not safe, stable and reliable. UTILITY MODEL CONTENTS
[0004] To overcome the defects existing in prior art, a kind of numerical control machine tool electric control type universal positioning device is provided, to solve the problem that only three groups of clamping devices are used on the universal positioning device in prior art, clamping contact surface is small, and it is not easy to prevent skidding, clamping is not safe, stable and reliable.
[0005] To achieve the above-mentioned purpose, a kind of numerical control machine tool electric control type universal positioning device is provided, including numerical control machine tool, left positioning structure and right positioning structure, the upper end face of numerical control machine tool is fixed with side fixed plate at left and right ends, and multiple groups of rack rollers are placed between two groups of side fixed plates, the upper end face of numerical control machine tool is provided with first X-axis linear guide rail and second X-axis linear guide rail at front and back sides, and left positioning structure is slidably connected between two groups of first X-axis linear guide rails, and right positioning structure is slidably connected between two groups of second X-axis linear guide rails.
[0006] Further, the left side of left positioning structure is provided with side fixed frame, the outer side of side fixed frame is provided with back baffle, the inner side surface middle part of back baffle is fixed with back rest, and the inner side surface of back rest is fixed in the middle part of the outer ring surface of arc-shaped outer sleeve plate.
[0007] Further, the front and rear ends of the backstop are fixed with side connecting plates, one end of the side connecting plate is fixed with a side rest plate, and the outer side of the side rest plate is fixed with a side support plate, and the lower end of the side support plate is fixed on a sliding block which is slidingly connected to the same side first X-axis linear guide rail.
[0008] Further, the inner side of the arc-shaped outer sleeve plate is fixed with a plurality of shock absorbers, the front end of the shock absorber is fixed in the sleeve hole on the outer side of the arc-shaped inner sleeve plate, and the arc-shaped outer sleeve plate is sleeved outside the arc-shaped inner sleeve plate, and the arc-shaped outer sleeve plate and the arc-shaped inner sleeve plate are both in a semicircular arc sleeve plate structure.
[0009] Further, the inner side of the arc-shaped inner sleeve plate is fixed with a plurality of sleeve frames, the front part of the sleeve frame is sleeved outside the center shaft, the center shaft is fixed on the center of the extrusion wheel, and the outer ring surface of the extrusion wheel is provided with anti-skid protrusions made of silicone rubber.
[0010] Further, the left positioning structure and the right positioning structure are movable structures, and the moving directions of the left positioning structure and the right positioning structure are opposite, and the left positioning structure and the right positioning structure are left-right symmetrical about the center line of the numerical control machine tool, and the right positioning structure and the left positioning structure are the same in structure.
[0011] The beneficial effects of the present application are as follows:
[0012] 1. The sliding block is conveniently slid on the first X-axis linear guide rail, and is flexibly moved left and right, so that the whole left positioning structure is conveniently driven to perform semi-enclosed positioning and clamping on the left part of the workpiece, and the structure is more flexible and convenient.
[0013] 2. A plurality of shock absorbers are installed between the arc-shaped outer sleeve plate and the arc-shaped inner sleeve plate, which can buffer vibration impact, so that the clamping is safer and more stable, and the semicircular arc sleeve plate structure of the arc-shaped outer sleeve plate and the arc-shaped inner sleeve plate can form a left semicircular positioning process.
[0014] 3. The plurality of extrusion wheels installed on the inner side of the arc-shaped inner sleeve plate can conveniently perform semicircular encircling positioning and clamping on the left part of the workpiece, and the anti-skid protrusions provided on the outer ring surface of the extrusion wheel can prevent slipping and make the clamping safer and more stable.
[0015] 4. The left positioning structure and the right positioning structure are cooperatively arranged, which can form universal positioning, can clamp workpieces of different sizes, and the clamping is safer and more reliable. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a top view schematic diagram of the embodiment of the present application.
[0017] Figure 2 is a left positioning structure schematic view of the embodiment of the utility model,
[0018] Figure 3 is a side fixing frame schematic view of the embodiment of the utility model,
[0019] Figure 4 is an arc-shaped inner sleeve plate upper structure setting schematic view of the embodiment of the utility model.
[0020] In the drawing: 1, numerical control machine tool;10, side fixed plate;11, rack roller;12, first X-axis linear guide rail;13, second X-axis linear guide;2, left positioning structure;20, side fixing frame;21, sliding block;22, back baffle;23, back rest;24, side support plate;25, side rest;26, side connecting plate;27, arc-shaped outer sleeve plate;28, shock damper;29, arc-shaped inner sleeve plate;200, sleeve hole;201, sleeve frame;202, center shaft;203, extrusion wheel;204, anti-skid protrusion;3, right positioning structure. DETAILED DESCRIPTION
[0021] In order to make the technical problem, technical scheme and beneficial effect of the utility model to be solved clearer, the following is further detailed in combination with the drawings and embodiments. The specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Specific details such as specific system structure, technology are proposed so that the utility model embodiments can be understood more thoroughly. The described embodiments are part of the embodiments of the disclosure, not all embodiments. However, those skilled in the art should clearly understand that the utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the disclosure.
[0022] The specific embodiments of the utility model are described in detail below in combination with the drawings.
[0023] Figure 1 is a top view schematic view of the embodiment of the utility model, Figure 2 is a left positioning structure schematic view of the embodiment of the utility model, Figure 3 is a side fixing frame schematic view of the embodiment of the utility model, and Figure 4 is an arc-shaped inner sleeve plate upper structure setting schematic view of the embodiment of the utility model.
[0024] Referring to Figures 1 to 4The utility model provides a kind of electric control type universal positioning device for numerical control machine tool, including numerical control machine tool 1, left positioning structure 2 and right positioning structure 3, the upper end surface of numerical control machine tool 1 left and right ends are fixed with side fixed plate 10, and multiple groups of frame placement roller 11 are sleeved between two groups of side fixed plate 10, the upper end surface of numerical control machine tool 1 front and back sides are provided with first X-axis linear guide 12 and second X-axis linear guide 13, and the sliding connection of two groups of first X-axis linear guide 12 has left positioning structure 2, and the sliding connection of two groups of second X-axis linear guide 13 has right positioning structure 3.
[0025] In the embodiment, the left side of left positioning structure 2 is provided with side fixing frame 20, the outer side of side fixing frame 20 is provided with back baffle 22, the inner side surface of back baffle 22 is fixed with back rest 23 in the middle, and the inner side surface of back rest 23 is fixed in the middle of the outer ring surface of arc-shaped outer sleeve plate 27; the front and back ends of back baffle 22 are fixed with side connecting plate 26, one end of side connecting plate 26 is fixed with side rest 25, the outer side of side rest 25 is fixed with side support plate 24, and the lower end of side support plate 24 is fixed on sliding block 21, and sliding block 21 is slidingly connected to the same side of first X-axis linear guide 12.
[0026] As a preferred embodiment, the utility model is convenient to slide on first X-axis linear guide 12 by sliding block 21, and is flexible to move left and right, is convenient to drive the whole left positioning structure 2 to carry out semi-enclosed positioning and clamping work on the left part of workpiece, and is more flexible and convenient; and the setting of side fixing frame 20 helps the structure of left positioning structure 2 to be more stable, so that clamping is safer and more reliable.
[0027] In the embodiment, the inner side surface of arc-shaped outer sleeve plate 27 is fixed with multiple groups of shock absorber 28, the front end of shock absorber 28 is fixed in the sleeve hole 200 formed in the outer side surface of arc-shaped inner sleeve plate 29, and the arc-shaped outer sleeve plate 27 is sleeved outside the arc-shaped inner sleeve plate 29, and the arc-shaped outer sleeve plate 27 and the arc-shaped inner sleeve plate 29 adopt semi-circular arc sleeve plate structure.
[0028] As a preferred embodiment, multiple groups of shock absorber 28 are installed between arc-shaped outer sleeve plate 27 and arc-shaped inner sleeve plate 29 in the utility model, which plays a role in buffering vibration impact, so that clamping is safer and more stable, and the semi-circular arc sleeve plate structure adopted by arc-shaped outer sleeve plate 27 and arc-shaped inner sleeve plate 29 can constitute left semicircular positioning processing.
[0029] In the embodiment, the inner side surface of arc-shaped inner sleeve plate 29 is fixed with multiple groups of sleeve frame 201, the front part of sleeve frame 201 is sleeved outside central shaft 202, central shaft 202 is fixed in the center of extrusion wheel 203, the outer ring surface of extrusion wheel 203 is provided with anti-skid protrusion 204, and anti-skid protrusion 204 adopts silicone rubber material.
[0030] As a preferable implementation, the plurality of extrusion wheels 203 installed on the inner side of the arc-shaped inner sleeve plate 29 can conveniently position and clamp the left part of the workpiece in a semicircular surrounding manner, and the anti-skid protrusions 204 arranged on the outer ring surface of the extrusion wheels 203 can prevent the workpiece from slipping, so that the clamping is safer and more stable.
[0031] In the embodiment, the left positioning structure 2 and the right positioning structure 3 are movable structures, the moving directions of the left positioning structure 2 and the right positioning structure 3 are opposite, and the left positioning structure 2 and the right positioning structure 3 are left-right symmetrical about the center line of the numerical control machine tool 1.
[0032] As a preferable implementation, the left positioning structure 2 and the right positioning structure 3 are cooperatively arranged, so that universal positioning is formed, different sizes of workpieces can be clamped, and the clamping is safer and more reliable.
[0033] The universal positioning device of the utility model can effectively solve the problems that only three clamping devices are used on the universal positioning device in the prior art, the clamping contact surface is small, the clamping is not safe and stable, and the clamping is not reliable, the left positioning structure and the right positioning structure can be conveniently and flexibly moved, the positioning and clamping can buffer vibration and impact, the left and right semicircular positioning and clamping can flexibly clamp workpieces of different sizes, the clamping is safer and more stable and reliable, and the workpiece is not easy to slip off.
[0034] The above embodiments are used to explain and illustrate the utility model, rather than limit the utility model, and any modification and change made to the utility model within the spirit and scope of the utility model and the application protection claim should be included in the protection scope of the utility model.
Claims
1. An electrically controlled universal positioning device for a numerical control machine tool, characterized by: The application relates to a numerical control machine tool (1), a left positioning structure (2) and a right positioning structure (3), the upper end face of the numerical control machine tool (1) is fixed with side fixed plates (10) at the left and right ends, a plurality of groups of rack rollers (11) are arranged between the two groups of side fixed plates (10), the upper end face of the numerical control machine tool (1) is provided with first X-axis linear guides (12) and second X-axis linear guides (13) at the front and back sides, a left positioning structure (2) is slidably connected between the two groups of first X-axis linear guides (12), and a right positioning structure (3) is slidably connected between the two groups of second X-axis linear guides (13).
2. An electrically controlled universal positioning device for a numerically controlled machine tool according to claim 1, characterized in that, The left side of the left positioning structure (2) is provided with a side fixed frame (20), the outer side of the side fixed frame (20) is provided with a back baffle (22), the inner side surface of the back baffle (22) is fixed with a back leaning plate (23) at the middle, and the inner side surface of the back leaning plate (23) is fixed to the middle of the outer ring surface of an arc-shaped outer sleeve plate (27).
3. An electrically controlled universal positioning device for a numerically controlled machine tool according to claim 2, characterized in that, The front and back ends of the back baffle (22) are fixed with side connecting plates (26), one end of the side connecting plate (26) is fixed with a side leaning plate (25), the outer side of the side leaning plate (25) is fixed with a side supporting plate (24), the lower end of the side supporting plate (24) is fixed on a sliding block (21), and the sliding block (21) is slidably connected to the same side first X-axis linear guide (12).
4. An electrically controlled universal positioning device for a numerically controlled machine tool according to claim 2, wherein The inner side surface of the arc-shaped outer sleeve plate (27) is fixed with a plurality of groups of damping shock absorbers (28), the front end of the damping shock absorber (28) is fixed in a sleeve hole (200) formed in the outer side surface of an arc-shaped inner sleeve plate (29), the arc-shaped outer sleeve plate (27) is sleeved outside the arc-shaped inner sleeve plate (29), and the arc-shaped outer sleeve plate (27) and the arc-shaped inner sleeve plate (29) are both half-circular arc sleeve plate structures.
5. An electrically controlled universal positioning device for a numerically controlled machine tool according to claim 4, wherein The inner side surface of the arc-shaped inner sleeve plate (29) is fixed with a plurality of groups of sleeve racks (201), the front part of the sleeve rack (201) is sleeved outside a central shaft (202), the central shaft (202) is fixed in the center of an extrusion wheel (203), the outer ring surface of the extrusion wheel (203) is provided with anti-skid protrusions (204), and the anti-skid protrusions (204) are made of silicone rubber.
6. An electrically controlled universal positioning device for a numerically controlled machine tool according to claim 1, wherein The left positioning structure (2) and the right positioning structure (3) are movable structures, the moving directions of the left positioning structure (2) and the right positioning structure (3) are opposite, the left positioning structure (2) and the right positioning structure (3) are left-right symmetrical about the center line of the numerical control machine tool (1), and the right positioning structure (3) is provided with the same structure as the left positioning structure (2).
Citation Information
Patent Citations
Electronically-controlled specially-shaped part universal-location device for numerically-controlled machine tool
CN109015017A