Positioning device for laser cutting of PCBN composite sheet

Abstract

The utility model relates to the technical field of positioning clamps, in particular to a positioning device for laser cutting PCBN (polycrystalline cubic boron nitride) clad sheets, which comprises an annular support, a first driving part is fixedly connected to the ring center of the annular support, and the rotating axis of the first driving part coincides with the axis of the annular support; rotation and pitching angle adjustment are carried out through the bearing frame, the bearing plate supported by the elastic piece is arranged on the lower portion of the bearing frame, the clamping rods are arranged at the two ends of the bearing frame in a threaded connection mode respectively, and the clamping heads capable of abutting against and deforming are fixedly arranged at the inner ends of the clamping rods. According to the technical scheme, blanks of different models can be conveniently clamped, multi-angle adjustment can be conducted in the clamping process, then laser cutting is conducted, any PCBN composite sheet blank to be cut in the clamping station can be independently taken down and clamped, the cutting efficiency is greatly improved, the clamping function is improved, multifunctional cutting is facilitated, and the practicability is high. The practicability is high, and large-scale popularization is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a positioning device for laser cutting of PCBN composite sheets. Background Art

[0002] PCBN composite sheet is polycrystalline cubic boron nitride, which is mainly formed by sintering diamond powder, cubic boron nitride powder and hard alloy substrate under very high temperature and pressure environment. The properties of this material are wear-resistant and heat-conductive, and it has super high hardness and toughness to resist impact. This material is often used to make cutting tools and wear-resistant tools. It and diamond are both called superhard materials;

[0003] With the improvement of processing conditions and processing quality in modern processing and manufacturing industries, the demand for PCBN composite sheets during processing is increasing, and the processing quality of PCBN composite sheets is becoming more and more important. At present, the composite sheet segmentation processing on the market generally adopts grinding wheel machining and electric spark discharge wire cutting processing, which has the advantages of good roughness of the processed end surface and long processing time. In addition, a large amount of chemical cooling liquid is used in online cutting, which is not conducive to environmental protection processing. Therefore, laser technology is gradually used for processing. Laser cutting composite sheets as a new type of composite sheet cutting method has the advantages of high cutting efficiency, less material loss, and fast speed. Therefore, the positioning device for clamping PCBN composite sheets plays a very important role, and the existing clamping type of the clamp is single, and different clamping plates and other structures cannot be replaced;

[0004] In order to solve the above problems, the inventors designed a PCBN composite sheet laser cutting fixture, such as a Chinese patent PCBN composite sheet laser cutting fixture (application number 202320255510.8), and a PCBN composite sheet laser cutting fixture, including a fixed seat, a card plate is movably installed inside the fixed seat, a slide plate is movably installed inside the fixed seat, an auxiliary mechanism is arranged inside the fixed seat, a blank plate body is movably installed inside the fixed seat, and the auxiliary mechanism includes an extension block, a latch rod, an adjustment screw, a limit spring, a fixing screw, a positioning cylinder and a plug rod, two extension blocks are movably installed inside the fixed seat, and a latch rod is movably installed on the top of the slide plate. The PCBN composite sheet laser cutting fixture first puts the blank plate body into the bottom engaging groove, at this time, the adjusting screw is rotated to make the extension block drive the slide plate to move downward, the top engaging groove clamps the top of the blank plate body, and at the same time, the plug rod is inserted into the positioning cylinder to prevent the blank plate body from shaking, and finally the blank plate body is cut using a laser cutting machine.

[0005] Although this technical solution can solve the problem of replacing the clamping parts inside the clamping device and clamping various types of blanks, this technical solution still has the problems of single clamping groove shape structure, which is not convenient for clamping different types of blanks, and cannot perform laser cutting at multiple angles during the clamping process, and cannot remove or clamp a single PCBN composite sheet blank to be cut separately.

[0006] Therefore, it is necessary for the inventor to design a positioning device for laser cutting of PCBN composite sheets to overcome the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a positioning device for laser cutting of PCBN composite sheets to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for laser cutting of PCBN composite sheets, comprising an annular support, a first driving member fixedly connected to the center of the annular support, a rotation axis of the first driving member coincides with the axis of the annular support, a bracket is rotatably provided on the first driving member, a bearing frame is rotatably provided on the upper end of the bracket, a bearing plate is slidably provided at the lower part of the bearing frame, a plurality of groups of elastic members are abuttingly connected between the lower side surface of the bearing plate and the bottom of the bearing frame, a plurality of groups of relatively distributed clamping rods are slidably provided at both ends of the bearing frame, and a chuck is threadedly connected to the inner end of the clamping rod.

[0009] Preferably, both ends of the side frames of the carrier frame along the axis direction of the clamping rod are threadedly connected with adjustment rods, a sliding support rod is slidably connected between the inner side surfaces of the side frames on both sides of the carrier frame, and one end of the adjustment rod is rotatably connected to the end of the sliding support rod.

[0010] Preferably, the end of the chuck pointing outward has a threaded column, and the end pointing inward is a wavy flexible interference portion, and a plurality of flexible interference members are provided between the inside of the wavy flexible interference portion and the threaded column.

[0011] Preferably, the clamping rod includes a manual cylindrical rod and a polygonal long rod rotatably connected to the inner end of the manual cylindrical rod, the manual cylindrical rod passes through the end frame of the supporting frame and is threadedly connected thereto, and the polygonal long rod passes through the sliding support rod and is slidably connected thereto.

[0012] Preferably, a connecting piece is fixedly provided on the inner side of the annular support, and an annular groove is formed on the upper annular surface of the annular support.

[0013] Preferably, the upper part of the bracket is a group of relatively distributed support rods, and the lower part is a four-claw support part. The inner sides of the upper ends of one group of support rods are rotatably connected to the two outer connecting parts of the carrier frame, and the ends of the four-claw support parts are rotatably connected to rollers that roll in the annular groove.

[0014] Preferably, a second driving member is fixedly provided on the bracket, and the second driving member is rotationally connected to the supporting frame through a transmission member.

[0015] Preferably, a semi-annular angle indicator is fixedly provided on the lower part of the other side of the support frame, the axis of the semi-annular angle indicator coincides with the rotation axis of the support frame, and an angle indication mark is engraved on the side surface of the angle indicator.

[0016] Preferably, an indicator arrow is engraved on the outer side surface of the bracket, and the indicator arrow indicates the angle indication mark.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the utility model arranges a first driving member and a second driving member transmission member on the annular support, so that the bearing frame can be indirectly and directly adjusted in angle, and arranges a bearing plate supported by an elastic member at the lower part of the bearing frame, and threadedly connects clamping rods at both ends of the bearing frame, and fixes a chuck that can resist deformation at the inner end of the clamping rod, so that the technical solution is convenient for clamping blanks of different models and can adjust multiple angles during the clamping process before laser cutting, the latter can perform laser cutting while adjusting the angle, and can also separately remove and clamp any PCBN composite sheet blank to be cut in the clamping station, which greatly improves the cutting efficiency, improves the clamping function, facilitates multi-functional cutting, has strong practicality, and is easy to promote on a large scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model (first viewing angle);

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model (second viewing angle);

[0020] Figure 3 It is a side view of the utility model;

[0021] Figure 4 It is a schematic diagram of the top view structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the chuck of the utility model.

[0023] In the figure: 1. annular support; 2. first driving member; 3. bracket; 31. support rod; 32. four-claw support part; 33. roller; 4. bearing frame; 5. bearing plate; 6. elastic member; 7. clamping rod; 71. manual cylindrical rod; 72. polygonal long rod; 8. chuck; 81. threaded column; 82. wavy flexible resistance part; 83. flexible resistance member; 9. adjustment rod; 10. sliding support rod; 11. connecting member; 12. annular groove; 13. second driving member; 14. transmission member; 15. semi-annular angle indicator; 16. angle indication mark; 17. indication arrow. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0027] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0028] In addition, the term "plurality" shall mean two or more.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Example

[0030] like Figures 1 to 5 As shown, the utility model proposes a positioning device for laser cutting of PCBN composite sheets, including an annular support 1, a first driving member 2 is fixedly connected to the center of the annular support 1, and the rotation axis of the first driving member 2 coincides with the axis of the annular support 1, so that the device can be rotated along the vertical axis when in use; a bracket 3 is rotatably arranged on the first driving member 2, and further, a second driving member 13 is fixedly arranged on the bracket 3, and the second driving member 13 is rotatably connected to the supporting frame 4 through a transmission member 14; when in use, the second driving member 13 drives the transmission member 14 to drive the supporting frame 4 to perform pitch rotation adjustment, and the transmission member 14 can preferably be a synchronous belt, and the second driving member 1 3 can be preferably a small servo motor; a carrier frame 4 is rotatably provided at the upper end of the bracket 3, a carrier plate 5 is slidably provided at the lower part of the carrier frame 4, a plurality of groups of elastic members 6 are abutted and connected between the lower side surface of the carrier plate 5 and the bottom of the carrier frame 4, a plurality of groups of relatively distributed clamping rods 7 are slidably provided at both ends of the carrier frame 4, and a chuck 8 is threadedly connected at the inner end of the clamping rod 7; when in use, the technical solution is convenient for clamping blanks of different models and can adjust multiple angles during the clamping process before laser cutting, the latter can perform laser cutting work while adjusting the angle, and can also separately remove and clamp any PCBN composite sheet blank to be cut in the clamping station, thereby improving the cutting efficiency, the clamping function, facilitating multi-functional cutting, and having strong practicality.

[0031] like Figures 1 to 3 As shown, both ends of the side frames of the carrier frame 4 along the axial direction of the clamping rod 7 are threadedly connected with adjusting rods 9, and a sliding support rod 10 is slidably connected between the inner side surfaces of the side frames on both sides of the carrier frame 4, and one end of the adjusting rod 9 is rotatably connected to the end of the sliding support rod 10; when in use, the adjusting rod 9 is manually rotated to slide on the carrier frame 4, and then the sliding support rod 10 is pushed to slide and adjust on the clamping station in the carrier frame 4, thereby facilitating the sliding adjustment of the clamping rod 7 in the clamping station, thereby realizing stable clamping of the blank to be cut.

[0032] like Figure 5As shown, the end of the chuck 8 pointing outward has a threaded column 81, and the end pointing inward is a wavy flexible resistance part 82. When in use, the wavy flexible resistance part 82 resists the workpiece to be cut, making the clamping more stable; there are multiple flexible resistance parts 83 between the inside of the wavy flexible resistance part 82 and the threaded column 81; when in use, the wavy flexible resistance part 82 will deform after resisting the workpiece to be cut and push the multiple flexible resistance parts 83 to bend and deform, thereby increasing the covering and flexible clamping of one side of the workpiece to be cut, so that various rough surfaces of the workpiece to be cut can be clamped.

[0033] like Figure 1 As shown, the clamping rod 7 includes a manual cylindrical rod 71 and a polygonal long rod 72 rotatably connected to the inner end of the manual cylindrical rod 71. The manual cylindrical rod 71 passes through the end frame of the supporting frame 4 and is threadedly connected thereto. When in use, the manual cylindrical rod 71 is manually rotated to slide inward at the end of the supporting frame 4, thereby pushing the polygonal long rod 72, thereby changing the clamping spacing, which is convenient for clamping pieces to be cut of different sizes. The polygonal long rod 72 passes through the sliding support rod 10 and is slidably connected thereto; when in use, when the manual cylindrical rod 71 pushes the polygonal long rod 72 to slide in the sliding support rod 10, the polygonal long rod 72 cooperates with the sliding hole on the sliding support rod 10 through the polygonal shape, thereby limiting the polygonal long rod 72, so that only axial sliding is performed.

[0034] like Figure 1 As shown, a connecting piece 11 is fixedly provided on the inner side of the annular support 1, and an annular groove 12 is provided on the upper annular surface of the annular support 1; when in use, the annular groove 12 can guide and limit the bracket 3 during rotation to prevent skewing.

[0035] like Figures 1 to 3 As shown, the upper part of the bracket 3 is a group of relatively distributed support rods 31, and the lower part is a four-claw support part 32. The inner sides of the upper ends of a group of support rods 31 are rotatably connected to the two outer connecting parts of the support frame 4, and the ends of the four-claw support parts 32 are rotatably connected to rollers 33 rolling in the annular groove 12; when in use, when the bracket 3 rotates, the upper support rods 31 clamp the support frame 4 to rotate, and at the same time, the lower four-claw support part 32 contacts the inside of the annular groove 12 through the rollers 33 and rolls circumferentially around its axis therein.

[0036] like Figure 1 As shown, a semi-circular angle indicator 15 is fixedly provided at the lower part of the other side of the support frame 4, the axis of the semi-circular angle indicator 15 coincides with the rotation axis of the support frame 4, and an angle indication mark 16 is engraved on the side of the semi-circular angle indicator 15; when in use, the semi-circular angle indicator 15 rotates synchronously with the support frame 4, so that the angle indication mark 16 pointing vertically downward will also change with the rotation, thereby making it easy to understand the pitch adjustment status of the support frame 4.

[0037] like Figure 1 As shown, an indicator arrow 17 is engraved on the outer side of the bracket 3, and the indicator arrow 17 indicates the angle indicator mark 16; when in use, the indicator arrow 17 indicates the angle indicator mark 16 in real time, so that the angle adjustment of the carrier 4 can be easily observed, which is convenient for the operator to control and observe the positioning of the PCBN composite sheet.

[0038] The working principle of the positioning device for laser cutting of PCBN composite sheets based on the first embodiment is as follows: when the utility model is in use, first, the carrier frame 4 is in a horizontal state, and the indicating arrow 17 indicates the 0° angle mark of the angle indicating mark 16, and then one or more PCBN composite sheets to be cut are placed on the upper side of the carrier plate 5 and in the clamping station between the relatively distributed clamps 8, and then the adjusting rod 9 is manually rotated to slide on the carrier frame 4, thereby pushing the sliding support rod 10 to slide and adjust on the clamping station in the carrier frame 4, thereby facilitating the sliding adjustment of the clamping rod 7 in the clamping station, and realizing the stable clamping of the blank to be cut, and then the manual cylindrical rod 71 is manually rotated to slide inward at the end of the carrier frame 4, so as to realize the pushing of the polygonal long rod 72 and slide in the sliding support rod 10, and the polygonal long rod 7 The polygonal shape cooperates with the sliding hole on the sliding support rod 10 to limit the position of the polygonal long rod 72, so that only axial sliding is performed, thereby changing the clamping interval, which is convenient for clamping the workpieces to be cut of different sizes; and a clamp head 8 capable of resisting deformation is fixedly arranged at the inner end of the clamping rod 7, and the wavy flexible resisting part 82 resists the workpiece to be cut and deforms, and pushes the multiple flexible resisting parts 83 to bend and deform, thereby increasing the covering and flexible clamping of one side of the workpiece to be cut, so that the workpieces to be cut with various rough surfaces can be clamped; thus, the technical solution is convenient for clamping different types of blanks and can adjust multiple angles during the clamping process before laser cutting, and the latter can adjust the angle while performing laser cutting, and can also remove and clamp any PCBN composite sheet blank to be cut in the clamping station separately, which greatly improves the cutting efficiency, improves the clamping function, and facilitates multi-functional cutting, and has strong practicality and is convenient for large-scale promotion.

[0039] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A positioning device for laser cutting of PCBN composite sheets, comprising an annular support (1), characterized in that: A first driving member (2) is fixedly connected to the center of the annular support (1), the rotation axis of the first driving member (2) coincides with the axis of the annular support (1), a bracket (3) is rotatably provided on the first driving member (2), a bearing frame (4) is rotatably provided on the upper end of the bracket (3), a bearing plate (5) is slidably provided at the lower part of the bearing frame (4), a plurality of groups of elastic members (6) are abuttingly connected between the lower side surface of the bearing plate (5) and the bottom of the bearing frame (4), a plurality of groups of relatively distributed clamping rods (7) are slidably provided at both ends of the bearing frame (4), and a clamp (8) is threadedly connected to the inner end of the clamping rod (7).

2. A positioning device for laser cutting of PCBN composite sheets according to claim 1, characterized in that: Both ends of the side frames of the carrier frame (4) along the axis direction of the clamping rod (7) are threadedly connected with adjustment rods (9), and a sliding support rod (10) is slidably connected between the inner side surfaces of the side frames of the carrier frame (4), and one end of the adjustment rod (9) is rotatably connected to the end of the sliding support rod (10).

3. A positioning device for laser cutting of PCBN composite sheets according to claim 1, characterized in that: The end of the clamp (8) pointing outwards has a threaded column (81), and the end pointing inwards is a wavy flexible abutment portion (82), and a plurality of flexible abutment members (83) are provided between the inside of the wavy flexible abutment portion (82) and the threaded column (81).

4. A positioning device for laser cutting of PCBN composite sheets according to claim 2, characterized in that: The clamping rod (7) comprises a manual cylindrical rod (71) and a polygonal long rod (72) rotatably connected to the inner end of the manual cylindrical rod (71); the manual cylindrical rod (71) passes through the end frame of the carrier frame (4) and is threadedly connected thereto; and the polygonal long rod (72) passes through the sliding support rod (10) and is slidably connected thereto.

5. The positioning device for laser cutting of PCBN composite sheets according to claim 1, characterized in that: A connecting piece (11) is fixedly provided on the inner side of the annular support (1), and an annular groove (12) is provided on the upper annular surface of the annular support (1).

6. A positioning device for laser cutting of PCBN composite sheets according to claim 5, characterized in that: The upper portion of the bracket (3) is a group of relatively distributed support rods (31), and the lower portion is a four-claw support portion (32). The inner sides of the upper ends of a group of the support rods (31) are rotatably connected to the two outer connecting portions of the support frame (4), and the ends of the four-claw support portions (32) are rotatably connected to rollers (33) that roll in the annular groove (12).

7. The positioning device for laser cutting of PCBN composite sheets according to claim 1, characterized in that: A second driving member (13) is fixedly arranged on the bracket (3), and the second driving member (13) is rotationally connected to the supporting frame (4) via a transmission member (14).

8. The positioning device for laser cutting of PCBN composite sheets according to claim 1, characterized in that: A semi-annular angle indicator (15) is fixedly provided at the lower part of the other side of the support frame (4), the axis of the semi-annular angle indicator (15) coincides with the rotation axis of the support frame (4), and an angle indication mark (16) is engraved on the side surface of the semi-annular angle indicator (15).

9. A positioning device for laser cutting of PCBN composite sheets according to claim 8, characterized in that: An indication arrow (17) is engraved on the outer side surface of the bracket (3), and the indication arrow (17) indicates the angle indication mark (16).

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