Cutter head strength testing device for PCBN (Polycrystalline Boron Nitride) welding cutter

Abstract

The utility model relates to the technical field of work fixtures, in particular to a PCBN (polycrystalline cubic boron nitride) welding cutter head strength testing device, which adopts the technical scheme that the PCBN welding cutter head strength testing device comprises a base, a positioning block, a pressing plate, a fastening screw and a group of sunk screws, the pressing plate is L-shaped and is fixed above the positioning block through the fastening screw, one end of the pressing plate abuts against the base, and the other end of the pressing plate and the positioning block define a clamping space for placing a PCBN welding cutter head to be tested; according to the multi-degree-of-freedom stable clamping device for the PCBN welding cutter head, multi-degree-of-freedom stable clamping can be accurately carried out on the PCBN welding cutter head at a high speed through the base, the positioning blocks, the pressing plates, the fastening screws and the sunk screws, the clamping structure is simple, use is convenient, therefore, accurate strength testing is achieved, testing efficiency and clamping stability are improved, and product quality can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a strength testing device for the tool tip of a PCBN welding tool. Background Art

[0002] PCBN (polycrystalline cubic boron nitride) tools are an important tool in modern machining, with high hardness, high wear resistance and good thermal stability; in the production process, it is a very important link to test the strength of the tool tip of the PCBN welding tool to ensure its performance and quality, so the performance of the testing equipment for it is particularly important.

[0003] The prior art still has the following defects in the process of use: when the prior art is used, the existing testing methods and fixture equipment have problems such as complex operation, low efficiency and unstable clamping.

[0004] In view of this, we propose a strength testing device for the tool tip of a PCBN welding tool to solve the existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a strength testing device for the tool tip of a PCBN welding tool to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a strength testing device for the tool tip of a PCBN welding tool, including a base, a positioning block, a pressing plate, fastening screws and a set of countersunk head screws. The positioning block is fixedly connected to the upper end of the base through the set of countersunk head screws. The pressing plate is L-shaped and is fixed above the positioning block through the fastening screws. One end of the pressing plate abuts against the base, and a clamping space for placing the tool tip of the PCBN welding tool to be tested is enclosed between the other end of the pressing plate and the positioning block.

[0007] Preferably, the upper end of the base has a step and a baffle, a testing space is enclosed between the step and the baffle, the upper side of the step has a lower positioning post, and the upper end surface of the lower positioning post has a cylindrical groove.

[0008] Preferably, the lower side surface of the other end of the pressing plate has an upper positioning post, the lower end surface of the upper positioning post has a cylindrical protrusion, and the cylindrical protrusion is inserted into the cylindrical groove.

[0009] Preferably, the contact surface between the pressing plate and the positioning block has anti-slip lines.

[0010] Preferably, a clamping port is concavely opened on one side surface of the positioning block relative to the baffle, and V-shaped limiting grooves are provided on both sides of the clamping port.

[0011] Preferably, a mounting hole for fixing is provided at the lower end of the base, and a limiting groove for contacting with one end of the pressing plate is provided on the upper side surface of the end of the step.

[0012] Compared with the prior art, the utility model has the advantages that the PCBN welding cutter head can be stably clamped with multiple degrees of freedom quickly and accurately through the base, positioning block, pressure plate, fastening screw and countersunk screw, the clamping structure is simple and easy to use, thereby realizing accurate strength testing, improving test efficiency and clamping stability, and being conducive to ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional unfolded structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the assembly structure of the pressing plate and the fastening screws of the utility model;

[0015] Figure 3 This is a schematic diagram of the assembly structure of the positioning block and the countersunk screw of the utility model;

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the base of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the utility model in use state;

[0018] Figure 6 It is a schematic diagram of the partial structure of the utility model when the PCBN welding cutter head is not clamped.

[0019] In the figure: 1. base; 101. step; 102. baffle; 103. lower positioning column; 104. mounting hole; 105. limit groove; 2. positioning block; 201. clamping opening; 3. pressure plate; 301. upper positioning column; 302. anti-slip texture; 4. fastening screw; 5. countersunk screw; 6. clamping space; 7. test space; 8. cylindrical groove; 9. cylindrical protrusion; 10. V-shaped limit groove. DETAILED DESCRIPTION

[0020] 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.

[0021] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so as to implement the embodiments of this application described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0022] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation.

[0023] Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship 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.

[0024] In addition, the meaning of the term "plurality" should be two or more.

[0025] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail this application. Embodiment

[0026] Such as Figures 1 to 6As shown in the figure, a strength testing device for the tip of a PCBN welding tool proposed by the present utility model includes a base 1, a positioning block 2, a pressing plate 3, fastening screws 4, and a set of countersunk head screws 5. When in use, stronger-hardness steel is preferably selected for manufacturing to ensure the stability and durability of the fixture. The positioning block 2 is fixedly connected to the upper end of the base 1 through a set of countersunk head screws 5. Further, a clamping opening 201 is concavely formed on one side surface of the positioning block 2 relative to the baffle 102, and V-shaped limiting grooves 10 are provided on both sides of the clamping opening 201. When in use, the tip of the PCBN welding tool to be tested is placed into the clamping opening 201 in the positioning block 2. At this time, the V-shaped structure of the V-shaped limiting grooves 10 realizes the limitation of the two side directions of the tip of the PCBN welding tool. Since there is a set of V-shaped limiting grooves 10 and they are symmetrically distributed, the precise limiting effect in the horizontal direction of the V-shaped limiting grooves 10 is realized. The pressing plate 3 is L-shaped and is fixed above the positioning block 2 through the fastening screws 4 to realize the vertical limitation of the positioning block 2. One end of the pressing plate 3 abuts against the base 1, and a clamping space 6 for placing the tip of the PCBN welding tool to be tested is enclosed between the other end of the pressing plate 3 and the positioning block 2. When in use, the horizontal and vertical limitations of one end of the tip of the PCBN welding tool are achieved, so that the measurement of the tip of the PCBN welding tool can be more accurate and stable.

[0027] Further, the upper end of the base 1 has a step 101 and a baffle 102, and a test space 7 is enclosed between the step 101 and the baffle 102. When in use, the reserved test space 7 facilitates the measurement of one end of the tip of the PCBN welding tool after clamping. The upper side of the step 101 has a lower positioning post 103, and the upper end surface of the lower positioning post 103 has a cylindrical groove 8. Further, the lower side surface of the other end of the pressing plate 3 has an upper positioning post 301, and the lower end surface of the upper positioning post 301 has a cylindrical protrusion 9. The cylindrical protrusion 9 is inserted into the cylindrical groove 8. When in use, the lower positioning post 103 and the upper positioning post 301 are abutted and connected, so that the structural stability of the fixture is better, and the clamping of the tip of the PCBN welding tool is more stable.

[0028] Further, the contact surface between the pressing plate 3 and the positioning block 2 has anti-slip lines 302. When in use, the anti-slip lines 302 are pressed against the upper side of the tip of the PCBN welding tool and the upper side of the positioning block 2, so that the anti-slip lines 302 prevent the slight movement of the tip of the PCBN welding tool and improve the accuracy of the detection.

[0029] Furthermore, a mounting hole 104 for fixing is provided at the lower end of the base 1, which facilitates the installation of the base 1 when in use, and a limiting groove 105 is provided on the upper side surface of the end of the step 101 for abutting against one end of the pressing plate 3; when in use, after one end of the pressing plate 3 abuts against the limiting groove 105, the overall clamping structure is more stable, and after the limiting groove 105 limits one end of the pressing plate 3, the clamping of the pressing plate 3 is more stable.

[0030] The working principle of the PCBN welding cutter head strength testing device based on the first embodiment is as follows: when the utility model is used, firstly, the positioning block 2 is fixed to the upper side of the step 101 on the upper part of the base 1 by a set of countersunk screws 5, and then the PCBN welding cutter head to be tested is placed in the clamping opening 201 in the positioning block 2, at this time, the lower positioning column 103 is inserted into the central circular hole of the PCBN welding cutter head, and then the pressing plate 3 is fixed to the upper side of the positioning block 2 by the fastening screws 4, and the anti-slip pattern 3 is fixed to the upper side of the positioning block 2. 02 conflicts with the upper side of the PCBN welding cutter head and the upper side of the positioning block 2, and the upper positioning column 301 is inserted in the middle circular hole of the PCBN welding cutter head, and the cylindrical protrusion 9 at the end of the upper positioning column 301 is plugged into the cylindrical groove 8 on the upper end face of the lower positioning column 103 to achieve precise connection, thereby achieving precise positioning of the PCBN welding cutter head. The technical solution has a simple clamping structure and is easy to use. It can realize accurate strength testing, improve test efficiency and accuracy, and is conducive to ensuring product quality.

[0031] 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 strength testing device for the tip of a PCBN welding tool, characterized in that: It includes a base (1), a positioning block (2), a pressing plate (3), fastening screws (4) and a set of countersunk head screws (5). The positioning block (2) is fixedly connected to the upper end of the base (1) through the set of countersunk head screws (5). The pressing plate (3) is L-shaped and is fixed above the positioning block (2) through the fastening screws (4). One end of the pressing plate (3) abuts against the base (1), and a clamping space (6) for placing the tool tip of the PCBN welding tool to be tested is enclosed between the other end and the positioning block (2).

2. The PCBN welding tool bit strength testing device according to claim 1, wherein: The upper end of the base (1) has a step (101) and a baffle (102). A test space (7) is enclosed between the step (101) and the baffle (102). The upper side of the step (101) has a lower positioning post (103), and the upper end surface of the lower positioning post (103) has a cylindrical groove (8).

3. The PCBN welding tool bit strength testing device according to claim 2, characterized in that: The lower side surface of the other end of the pressing plate (3) has an upper positioning post (301), and the lower end surface of the upper positioning post (301) has a cylindrical protrusion (9). The cylindrical protrusion (9) is inserted into the cylindrical groove (8).

4. The PCBN welding tool tip strength testing device according to claim 1, characterized in that: The contact surface between the pressing plate (3) and the positioning block (2) has anti-slip patterns (302).

5. The PCBN welding tool tip strength testing device according to claim 2, characterized in that: A clamping opening (201) is recessed on one side surface of the positioning block (2) relative to the baffle (102), and V-shaped limiting grooves (10) are provided on both sides of the clamping opening (201).

6. The PCBN welding tool tip strength testing device according to claim 2, characterized in that: Mounting holes (104) for fixing are provided at the lower end of the base (1), and a limiting groove (105) that abuts against one end of the pressing plate (3) is provided on the upper side surface of the end of the step (101).

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