Accurate positioning and clamping device and wire cutting equipment

Abstract

The utility model provides an accurate positioning clamping device and wire cutting equipment, which comprises a fixed platform, a material carrying table connected on the fixed platform through a translation mechanism, a plurality of fixed clamps arranged on the material carrying table, movable clamps oppositely arranged on two sides of the fixed clamps, and a material clamping station formed between the adjacent fixed clamp and movable clamp, at least one inclined wedge block is arranged on the clamping face of the movable clamp in a protruding mode, at least one side of each inclined wedge block is a guide inclined face, the inclined wedge blocks are arranged on the two sides of the material clamping station, and at least one side of the material clamping station is clamped through the guide inclined faces. Through the design of the inclined wedge block and the guide inclined plane on the movable clamp, accurate positioning and clamping of a product are achieved, it is guaranteed that the position of the product is accurate in the clamping process, and dislocation or extrusion damage is avoided. The outer end edge of the vertical face of the inclined wedge block is provided with the leading-in chamfer to form the leading-in notch, so that the edge of the product can be rapidly attached to the vertical face, the clamping efficiency is improved, and meanwhile damage to the product is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a clamp, in particular to a precise positioning clamping device and a wire cutting device. Background Art

[0002] The wire cutting machine is mainly composed of three parts: machine tool, CNC system and high-frequency power supply. The CNC system is composed of single-chip microcomputer, keyboard, frequency conversion detection system, and has the main functions of gap compensation, linear interpolation, circular interpolation, automatic wire breakage processing, etc. It can cut materials such as high-strength, high-toughness, high-hardness, high-brittleness, magnetic materials, as well as precision and small parts with complex shapes.

[0003] For example, Chinese patent literature has disclosed a multi-wire cutting machine loading and unloading device and a multi-wire cutting machine [Chinese Patent No.: 202222459188.9], a multi-wire cutting machine loading and unloading device and a multi-wire cutting machine, the multi-wire cutting machine loading and unloading device includes a workpiece conveying mechanism, a loading platform and an automatic plate locking mechanism; the workpiece conveying mechanism consists of a loading part, a horizontal conveying part and a unloading part, the loading part is located on one side of the multi-wire cutting machine equipment, the loading part is docked with the feeding end of the horizontal conveying part, the horizontal conveying part horizontally runs through the cutting operation area of ​​the multi-wire cutting machine equipment, and its discharge end is docked with the unloading part, the unloading part is located on the other side of the multi-wire cutting machine equipment; the loading platform is provided with a carrier plate, and the workpiece is conveyed by the carrier plate and the workpiece conveying mechanism; the automatic plate locking mechanism is fixedly installed on the lifting worktable of the multi-wire cutting machine equipment, and the locking and positioning of the loading platform is realized by the automatic plate locking mechanism. The utility model realizes the continuous completion of unloading and loading operations of the multi-wire cutting machine, ensures the precise positioning of the workpiece, and achieves the purpose of improving work efficiency and product processing quality.

[0004] In the above technical solution, the automatic plate locking mechanism fixes the workpiece by circumferentially clamping it, but it is unable to achieve precise positioning for relatively thin and narrow sheet products, that is, the product is fixed freely, resulting in poor cutting accuracy and low efficiency. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a precise positioning clamping device and a wire cutting device.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a precise positioning clamping device, comprising a fixed platform, the fixed platform is connected to a loading platform through a translation mechanism, a plurality of fixed clamps are arranged on the loading platform, movable clamps are arranged on both sides of the fixed clamps, and a clamping station is formed between adjacent fixed clamps and movable clamps, at least one inclined wedge block is convexly provided on the clamping surface of the movable clamp, at least one side of the inclined wedge block is a guiding inclined surface, the inclined wedge blocks are arranged on both sides of the clamping station, and at least one side of the clamping station is clamped by the guiding inclined surface.

[0007] In the above-mentioned precise positioning clamping device, one side of the inclined wedge block is the guiding inclined surface, and the other side of the inclined wedge block is a vertical surface, and the outer end edge of the vertical surface has an introduction chamfer.

[0008] In the above-mentioned precise positioning clamping device, one side surface of the clamping station is clamped by the vertical surface, and the other side surface of the clamping station is clamped by the guiding inclined surface.

[0009] In the above-mentioned precise positioning clamping device, a mounting groove is recessed on the clamping surface of the movable clamp, and the inclined wedge block is installed in the mounting groove by screws. All the introduced chamfers, part of the vertical surface and part of the guiding inclined surface of the inclined wedge block exceed the notch of the mounting groove.

[0010] In the above-mentioned precise positioning clamping device, a plurality of partition blocks are protruding from the clamping surface of the movable clamp, and the plurality of partition blocks and the inclined wedge block are located on the same center line, and the partition blocks are symmetrically arranged on both sides of the clamping station.

[0011] In the above-mentioned precise positioning clamping device, the movable clamp is connected by cylinder drive.

[0012] In the above-mentioned precise positioning clamping device, a recessed clearance groove is formed on the top surface of the fixing fixture, and two sides of the recessed clearance groove form symmetrical bearing platforms.

[0013] In the above-mentioned precise positioning and clamping device, the translation mechanism includes a translation motor fixedly mounted on the fixed platform, the translation motor drives a connecting screw, a nut is threadedly engaged on the screw, the nut is fixedly connected to the bottom surface of the loading platform, guide rails are arranged on both sides of the screw on the fixed platform, the guide rails are parallel to the screw, a slider is correspondingly arranged on the bottom surface of the loading platform, and the slider is clamped with the guide rail to form a sliding connection.

[0014] A wire cutting device comprises the above-mentioned precise positioning clamping device, wherein a cutting mechanism is arranged above the precise positioning clamping device.

[0015] In the above-mentioned wire cutting equipment, the cutting mechanism includes at least four parallel rotating rollers, the outer circumferences of the four rotating rollers are tensioned around a plurality of cutting wires, and the plurality of cutting wires correspond one to one with a plurality of the clamping stations.

[0016] Compared with the prior art, the precise positioning clamping device and wire cutting equipment have the following beneficial effects:

[0017] 1. Precise positioning and clamping function: Through the design of the inclined wedge and the guiding slope on the movable clamp, the product can be precisely positioned and clamped to ensure that the product is accurately positioned during the clamping process to avoid dislocation or extrusion damage.

[0018] 2. Lead-in chamfer design: The outer end edge of the vertical surface of the inclined wedge has a lead-in chamfer to form a lead-in notch, so that the edge of the product can quickly fit the vertical surface, improve the clamping efficiency, and avoid damage to the product.

[0019] 3. Removable structure design: The inclined wedge is installed through the installation groove and screws to realize the detachable structure of the inclined wedge, which is convenient for maintenance and replacement of the inclined wedge and improves the maintainability and service life of the equipment.

[0020] 4. Separation block design: Separation blocks are set on the clamping surface of the movable fixture to separate the clamping stations, avoid product dislocation, and improve the efficiency of picking and placing materials.

[0021] 5. Make way groove design: A make way groove is concavely arranged on the top surface of the fixed fixture to form a symmetrical load-bearing platform, which provides stable support for the product, reduces the contact area, avoids scratches, and improves the efficiency of picking and placing.

[0022] In general, the precise positioning and clamping device effectively achieves precise positioning and clamping and stability of the product by comprehensively using a variety of technical means such as the design of the inclined wedge block, the chamfer design, the separator block design, and the detachable structure design, thereby improving production efficiency, product quality, and ease of operation. These beneficial effects make the application of the device in the wire cutting equipment more reliable and effective, and meet the needs of modern production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall stereogram of the precise positioning clamping device.

[0024] Figure 2 This is a partial structural diagram of the inclined wedge clamping product in this precise positioning clamping device.

[0025] Figure 3 It is a partial stereoscopic diagram of the clamping station in the precise positioning clamping device.

[0026] Figure 4 It is a three-dimensional diagram of the translation mechanism in the precise positioning clamping device.

[0027] Figure 5 This is an overall stereoscopic diagram of the wire cutting equipment.

[0028] In the figure, 1. fixed platform; 2. loading platform; 3. fixed fixture; 3a. give way groove; 3b. loading platform; 4. movable fixture; 5. inclined wedge block; 5a. guiding inclined surface; 5b. introduction chamfer; 5c. vertical surface; 6. partition block; 7. translation motor; 8. lead screw; 9. nut; 10. guide rail; 11. slider; 12. product; 13. rotating roller; 14. cutting line. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0030] like Figures 1 to 4 As shown, the precise positioning clamping device comprises a fixed platform 1, which is connected to a loading platform 2 via a translation mechanism, on which a plurality of fixed clamps 3 are arranged in an array, and movable clamps 4 are arranged on both sides of the fixed clamps 3, and a clamping station is formed between adjacent fixed clamps 3 and movable clamps 4, and at least one inclined wedge block 5 is convexly provided on the clamping surface of the movable clamp 4, and at least one side of the inclined wedge block 5 is a guiding inclined surface 5a, and inclined wedge blocks 5 are arranged on both sides of the clamping station, and at least one side of the clamping station is clamped by the guiding inclined surface 5a.

[0031] like Figures 1 to 3 As shown, one side of the inclined wedge block 5 is a guiding inclined surface 5a, and the other side of the inclined wedge block 5 is a vertical surface 5c, and the outer edge of the vertical surface 5c has an introduction chamfer 5b. The introduction chamfer 5b forms an introduction notch to facilitate the edge of the product 12 to quickly fit the vertical surface 5c from the outside, while avoiding the right-angle edge from causing squeezing damage to the product 12.

[0032] One side of the clamping station is clamped by the vertical surface 5c, and the other side of the clamping station is clamped by the guiding slope 5a. The vertical surface 5c on one side is in contact with the plane of the product 12, and the guiding slope 5a on the other side gradually clamps the edge of the product 12 at an inclined angle, which can not only achieve an automatic guiding effect on the product 12, but also improve the positioning accuracy of the product 12.

[0033] The clamping surface of the movable clamp 4 is provided with a recessed mounting groove, and the inclined wedge block 5 is installed in the mounting groove by screws, and the entire introduction chamfer 5b, part of the vertical surface 5c and part of the guiding inclined surface 5a of the inclined wedge block 5 exceed the notch of the mounting groove. The mounting groove provides a mounting position for the inclined wedge block 5, and a threaded hole is provided on the bottom wall of the mounting groove, and the screw is inserted into the threaded hole to form a threaded engagement assembly, thereby realizing a detachable structure, which is convenient for maintenance and replacement of the inclined wedge block 5.

[0034] A plurality of partition blocks 6 are convexly provided on the clamping surface of the movable clamp 4, and the plurality of partition blocks 6 and the inclined wedge block 5 are located on the same center line, and the partition blocks 6 are symmetrically arranged on both sides of the clamping station. The partition blocks 6 can be used to separate adjacent clamping stations, and the areas of different clamping stations can be clearly defined, so that the product 12 can be quickly placed in an independent clamping station to prevent the product 12 from being misplaced.

[0035] The movable clamp 4 is connected by a cylinder drive. The movable clamps 4 on both sides of the fixed clamp 3 are relatively merged by pneumatic driving, so that the guiding inclined surface 5a of the inclined wedge block 5 gradually contacts the edge of the product 12 and clamps and fixes it.

[0036] like Figure 3 As shown, a recessed groove 3a is formed on the top surface of the fixing fixture 3, and symmetrical bearing platforms 3b are formed on both sides of the recessed groove 3a. When the product 12 is placed on the fixing fixture 3, the bottom edge of the product 12 is supported by the symmetrical bearing platforms 3b on both sides, and the bottom edge of the product 12 is hollowed out at the recessed groove 3a, which reduces the contact area with the bottom edge of the product 12 to avoid scratches, and provides a convenient space for taking and placing the product 12 to improve the efficiency of taking and placing.

[0037] like Figure 4 As shown, the translation mechanism includes a translation motor 7 fixedly mounted on the fixed platform 1, the translation motor 7 drives the connecting lead screw 8, the lead screw 8 is threadedly engaged with a nut 9, the nut 9 is fixedly connected to the bottom surface of the loading platform 2, and guide rails 10 are arranged on both sides of the lead screw 8 on the fixed platform 1, the guide rails 10 are parallel to the lead screw 8, and a slider 11 is correspondingly arranged on the bottom surface of the loading platform 2, and the slider 11 is clamped with the guide rail 10 to form a guide-sliding connection. The translation motor 7 is started to drive the lead screw 8 to rotate in a directional manner, and the loading platform 2 is driven to translate along the guide rail 10 through threaded engagement transmission and guide-sliding connection, thereby adjusting the front and rear positions of several clamping stations on the loading platform 2.

[0038] Embodiment 2

[0039] Based on the first embodiment, the difference of this embodiment is that:

[0040] like Figure 5 As shown, the wire cutting equipment includes the above-mentioned precise positioning clamping device, and a cutting mechanism is set up above the precise positioning clamping device.

[0041] The cutting mechanism includes at least four parallel rotating rollers 13, and the outer circumference of the four rotating rollers 13 is tensioned around a plurality of cutting lines 14, and the plurality of cutting lines 14 correspond to a plurality of clamping stations one by one. The spacing of the cutting lines 14 is set in accordance with the size of the clamping device, that is, the spacing of the cutting lines 14 matches the spacing of the clamping stations to meet the precision requirements of the product 12.

[0042] The operation process of this wire cutting equipment is:

[0043] 1. First, the edge of the product 12 is introduced into the vertical surface 5c through the chamfer 5b, so that the flat surface of one side of the product 12 fits with the vertical surface 5c, and then the cylinder is started to drive the movable clamps 4 on both sides of the fixed clamp 3 to merge relatively, so that the guiding inclined surface 5a gradually contacts the edge of the other side of the plane of the product 12, and the guiding inclined angle is used to gradually clamp the product 12 to the correct and accurate fixed position, while keeping the clamping stable.

[0044] 2. Start the four rotating rollers 13 to rotate in a directional manner, drive the cutting line 14 to operate, and perform precise cutting operations on the corresponding products 12 one by one.

[0045] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A precise positioning clamping device, comprising a fixed platform, characterized in that: The fixed platform is connected to the loading platform via a translation mechanism, a plurality of fixed clamps are arranged on the loading platform, movable clamps are arranged on both sides of the fixed clamps, a clamping station is formed between the adjacent fixed clamps and the movable clamps, at least one inclined wedge block is convexly provided on the clamping surface of the movable clamp, at least one side of the inclined wedge block is a guiding inclined surface, the inclined wedge blocks are arranged on both sides of the clamping station, and at least one side of the clamping station is clamped by the guiding inclined surface.

2. The precise positioning clamping device according to claim 1, characterized in that: One side of the inclined wedge block is the guiding inclined surface, and the other side of the inclined wedge block is a vertical surface, and the outer end edge of the vertical surface has an introduction chamfer.

3. The precise positioning clamping device according to claim 2, characterized in that: One side of the clamping station is clamped by the vertical surface, and the other side of the clamping station is clamped by the guiding inclined surface.

4. The precise positioning clamping device according to claim 2, characterized in that: A mounting groove is concavely arranged on the clamping surface of the movable clamp, and the inclined wedge block is installed in the mounting groove by means of screws. The entire introduction chamfer, part of the vertical surface and part of the guiding inclined surface of the inclined wedge block exceed the notch of the mounting groove.

5. The precise positioning clamping device according to claim 1, characterized in that: A plurality of partition blocks are protrudingly provided on the clamping surface of the movable clamp, and the plurality of partition blocks and the inclined wedge block are located on the same center line, and the partition blocks are symmetrically arranged on both sides of the clamping station.

6. The precise positioning clamping device according to claim 1, characterized in that: The movable clamp is connected by cylinder drive.

7. The precise positioning clamping device according to claim 1, characterized in that: A recessed groove is formed on the top surface of the fixing fixture, and two sides of the recess form symmetrical bearing platforms.

8. The precise positioning clamping device according to claim 1, characterized in that: The translation mechanism includes a translation motor fixedly mounted on the fixed platform, the translation motor drives a connecting screw, a nut is threadedly engaged on the screw, the nut is fixedly connected to the bottom surface of the loading platform, guide rails are arranged on both sides of the screw on the fixed platform, the guide rails are parallel to the screw, a slider is correspondingly arranged on the bottom surface of the loading platform, and the slider is clamped with the guide rail to form a sliding connection.

9. A wire cutting device, characterized in that: It comprises the precise positioning clamping device as described in any one of claims 1 to 8, wherein a cutting mechanism is arranged above the precise positioning clamping device.

10. The wire cutting device according to claim 9, characterized in that: The cutting mechanism comprises at least four parallel rotating rollers, the outer circumferences of the four rotating rollers are tensioned around a plurality of cutting lines, and the plurality of cutting lines correspond one to one with the plurality of clamping stations.

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