Fixture for grinding batch bottom end surfaces of PCBN (Polycrystalline Cubic Boron Nitride) composite welding tool bits

Abstract

The utility model discloses a PCBN composite welding tool bit batch bottom end face grinding clamp which comprises a base, a right clamping piece, a left clamping piece and clamping screws, the right clamping piece is fixedly connected with the right side face of the base through a first set of fastening screws, the left clamping piece is fixedly connected with the left side face of the base through a second set of fastening screws, and the right clamping piece is fixedly connected with the left side face of the base through a third set of fastening screws. The right clamping piece and the left clamping piece are arranged on the two sides of the base so that the PCBN composite welding tool bit can be clamped by the side face, then the clamping trapezoid body and the trapezoid sliding blocks capable of sliding are arranged on the upper portion of the base, the trapezoid sliding blocks are fixedly connected to the needed positions through the long clamping screws, and clamping of the PCBN composite welding tool bit is achieved. The clamping space is changed by adjusting the position of one or more trapezoidal sliding blocks and the screwing-in depth of the long clamping screw, the effect of clamping and machining PCBN composite welding tool bits of different sizes and thicknesses in batches at the same time is achieved, the machining efficiency is improved, and the machining diversity is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of PCBN tool grinding, in particular to a PCBN composite welded tool bit batch bottom surface grinding clamp. BACKGROUND

[0002] With the development of industrial technology, polycrystalline cubic boron nitride (PCBN) tools are widely used in industrial product applications. The polycrystalline cubic boron nitride (PCBN) tool has very high hardness, wear resistance and chemical stability, and is suitable for dry cutting, rapid cutting, hard cutting and other green machining requirements. At present, the PCBN integrated blank is usually cut into smaller tool bits, then welded to the hard alloy base for use. The PCBN composite welded tool bit is first processed by non-contact laser, but the tool bit surface after laser processing has some uneven laser ablation layers of different sizes. At this time, surface grinding is needed to achieve high surface finish. The previous grinding method is single PCBN composite welded tool bit grinding and manual holding grinding. The current grinding method has low grinding efficiency and inconsistent and substandard grinding quality.

[0003] Therefore, in order to solve the above problems, the inventor designs a PCBN tool bit batch grinding positioning device. For example, a PCBN tool bit batch grinding positioning device (application number 202321135018.3) includes a base, a left baffle, a right baffle and an adjusting screw. The base is provided with a groove extending from the left end to the right end. The left baffle is arranged on the left side of the base and abuts the left side end of the groove. The right baffle is arranged on the right side of the base, and an L-shaped slot is formed in the position opposite to the right side end of the groove on the right baffle. The adjusting screw is connected to the base through the L-shaped slot from the side surface of the right baffle. The adjusting screw adjusts the tightness of the pressing plate to replace the tool bit, which is simple and convenient, and has high grinding efficiency. The structure is simple, can realize batch grinding of small size PCBN tool bits, avoids the size consistency problem caused by manual grinding, and improves the tool grinding quality.

[0004] Although the technical scheme can solve the batch grinding of small size PCBN tool bits, solve the size consistency problem caused by manual grinding, and improve the tool grinding quality, the technical scheme still has the problem that multiple size specifications of tool bits cannot be clamped and ground at the same time.

[0005] Therefore, it is necessary for the inventor to design a PCBN composite welded tool bit batch bottom surface grinding clamp to overcome the above problems. CONTENT OF THE UTILITY MODEL

[0006] The main purpose of the present application is to provide a PCBN composite welding tool bit batch bottom end face grinding clamp to solve the problem of not being able to clamp multiple size specifications of tool bits at the same time for grinding in the related art.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a PCBN composite welding tool bit batch bottom end face grinding clamp.

[0008] According to the PCBN composite welding tool bit batch bottom end face grinding clamp, the right clamping piece is fixedly connected with the right side of the base through a first group of fastening screws, the left clamping piece is fixedly connected with the left side of the base through a second group of fastening screws, the clamping screw penetrates the upper end of the left clamping piece into the base body, the upper rear side of the base is provided with a clamping trapezoidal body, and the upper front side of the base is slidably provided with a plurality of clamping mechanisms which are equally spaced and linearly arranged.

[0009] Preferably, the upper front side of the base is provided with a plurality of equally spaced and linearly arranged limiting slide rail portions.

[0010] Preferably, the clamping mechanism comprises a trapezoidal sliding block and a long locking screw, the bottom side of the trapezoidal sliding block is provided with a T-shaped sliding groove, the trapezoidal sliding block is slidably connected with the limiting slide rail portion through the T-shaped sliding groove, and the long locking screw penetrates the trapezoidal sliding block and the clamping trapezoidal body in sequence and is threadedly connected with the tail of the clamping trapezoidal body.

[0011] Preferably, the clamping trapezoidal body, the trapezoidal sliding block, the base, the right clamping piece and the left clamping piece form a trapezoidal clamping groove.

[0012] Preferably, the left side of the base is provided with a sunken platform.

[0013] Preferably, the upper end of the left clamping piece is provided with a trapezoidal protruding portion which can extend into the trapezoidal clamping groove relative to one side of the base, the right side of the left clamping piece is provided with a boss which is fitted with the sunken platform, and the upper end of the boss is internally recessed to form a C-shaped groove.

[0014] The utility model provides a kind of PCBN composite welding tool bit batch bottom face grinding with fixture, compared with prior art, its beneficial effect is: by being provided with right clamping piece, left clamping piece on the both sides of pedestal so that PCBN composite welding tool bit can be side clamped, simultaneously again by being provided with clamping trapezoidal body, multiple slidable trapezoidal slide blocks on pedestal upper portion, and multiple trapezoidal slide blocks are fixedly connected in the position required by multiple long clamping screws respectively, realize to PCBN composite welding tool bit Clamping, by the position of one or more adjusting trapezoidal slide block and the depth of screwing of long clamping screw, clamping space reaches change, to reach the effect of simultaneously clamping processing to batch, different size, thickness PCBN composite welding tool bit, also improve processing efficiency and the diversity of processing. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the application and, together with the description, serve to explain the application. In the drawings:

[0016] Figure 1 It is the schematic diagram of the exploded state of the utility model's three-dimensional structure;

[0017] Figure 2 It is the schematic diagram of the utility model's three-dimensional structure (first visual angle);

[0018] Figure 3 It is the schematic diagram of the utility model's A place local structure;

[0019] Figure 4 It is the schematic diagram of the utility model's three-dimensional structure (second visual angle);

[0020] Figure 5 It is the schematic diagram of the trapezoidal slide block three-dimensional structure of the utility model;

[0021] Figure 6 It is the state diagram when the utility model clamps different size PCBN composite welding tool bit.

[0022] Wherein: 1, pedestal;101, clamping trapezoidal body;102, clamping mechanism;103, sink;2, right clamping piece;3, left clamping piece;31, trapezoidal outer convex part;32, boss;33, C-shaped groove;4, clamping screw;5, first group fastening screw;6, second group fastening screw;7, limit slide rail part;8, trapezoidal slide block;81, T-shaped slide groove;9, long locking screw;10, trapezoidal clamping groove;11, PCBN composite welding tool bit. DETAILED DESCRIPTION

[0023] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the present application.

[0024] It should be noted that the terms "first", "second" and the like in the description of the present application and the claims and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] 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 the orientation or positional relationship based on the orientation or positional relationship 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.

[0026] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] As Figures 1 to 6As shown, a PCBN composite welding tool head batch bottom face grinding clamp, including base 1, right clamping piece 2, left clamping piece 3, clamping screw 4, right clamping piece 2 through the first group of fastening screw 5 and the right side of base 1 fixedly connected, so that the right clamping piece 2 is fixed in the right side of base 1 for clamping batch of PCBN composite welding tool head 11 provides the effect of clamping support; left clamping piece 3 through the second group of fastening screw 6 and the left side of base 1 fixedly connected, so that the left clamping piece 3 is fixed in the left side of base 1 for clamping batch of PCBN composite welding tool head 11 provides the effect of clamping support; clamping screw 4 penetrates the upper end of left clamping piece 3 to the base body of base 1, so that the depth of screwing in can be adjusted by fine adjustment clamping screw 4 to realize clamping and batch of PCBN composite welding tool head 11; the upper rear side of base 1 has clamping trapezoidal body 101, the inner inclined side of clamping trapezoidal body 101 is provided to realize one side limiting of batch of PCBN composite welding tool head 11, and meanwhile provides a connection positioning base for clamping mechanism 102; the upper front side of base 1 is slidably provided with a plurality of clamping mechanisms 102 which are equally spaced and linearly arranged; by providing a plurality of clamping mechanisms 102, the clamping mechanism 102 can be adjusted individually or simultaneously to realize the other side limiting of batch of PCBN composite welding tool head 11, further, the clamping trapezoidal body 101, trapezoidal slide block 8, base 1, right clamping piece 2 and left clamping piece 3 form a trapezoidal clamping groove 10, and the clamping effect of the trapezoidal clamping groove 10 on the PCBN composite welding tool head 11 is realized by the cooperation of the clamping trapezoidal body 101 and the clamping mechanism 102.

[0030] Further, the upper front side of base 1 has a plurality of equally spaced and linearly arranged limiting slide rail parts 7; during use, the trapezoidal slide block 8 in the clamping mechanism 102 is limited by the limiting slide rail part 7, and the trapezoidal slide block 8 can only slide along the limiting slide rail part 7; by arranging the limiting slide rail part 7 in multiple equal intervals and linearly, the clamping mechanism 102 can be adjusted according to the size and quantity of the actually clamped PCBN composite welding tool head 11, thereby ensuring the accuracy of clamping.

[0031] Further, the clamping mechanism 102 includes a trapezoidal slide block 8 and a long locking screw 9; the bottom side of the trapezoidal slide block 8 is provided with a T-shaped sliding groove 81, and the trapezoidal slide block 8 is slidably connected with the limiting slide rail part 7 through the T-shaped sliding groove 81; the long locking screw 9 penetrates the trapezoidal slide block 8 and the clamping trapezoidal body 101 in sequence, and the tail of the long locking screw 9 is threadedly connected with the clamping trapezoidal body 101; during use, the long locking screw 9 penetrates and inserts the trapezoidal slide block 8, so that the trapezoidal slide block 8 can be pulled to slide towards the clamping trapezoidal body 101 for clamping, thereby achieving the effect of clamping the PCBN composite welding tool head 11; the tail of the long locking screw 9 is threadedly connected with the clamping trapezoidal body 101, so that the long locking screw 9 can be adjusted in clamping size by screwing.

[0032] Furthermore, the left side of the base 1 has a recessed platform 103; in use, by opening the recessed platform 103, the protrusion 32 of the lower part of the left clamping member 3 can extend to the left side of the base 1, so that the left clamping member 3 is stably connected to the recessed platform 103.

[0033] Furthermore, the upper end of the left clamping member 3 has a trapezoidal protrusion 31 that can extend into the trapezoidal clamping groove 10 on one side relative to the base 1. By tightening the clamping screw 4, the trapezoidal protrusion 31 moves to the left end of the trapezoidal clamping groove 10, so that the left end of the batch of PCBN composite soldering heads 11 is gradually clamped. The right side of the left clamping member 3 has a boss 32 that fits against the countersunk platform 103, which provides a stable connection platform for the left clamping member 3. The upper end of the boss 32 is recessed with a C-shaped groove 33. The recessed C-shaped groove 33 causes the upper part of the left clamping member 3 to elastically deform when the clamping screw 4 is tightened. Since the C-shaped groove 33 begins to deform under force, on the one hand, the stability of the connection between the left clamping member 3 and the base 1 is ensured, and on the other hand, the trapezoidal protrusion 31 on the upper part of the left clamping member 3 gradually shifts and extends to the left end of the trapezoidal clamping groove 10, thereby achieving the effect of clamping the batch of PCBN composite soldering heads 11.

[0034] The working principle is as follows:

[0035] like Figures 1 to 6 As shown, after assembling the base 1, right clamping member 2, left clamping member 3, and clamping screw 4, a batch of PCBN composite soldering heads 11 are placed in the trapezoidal clamping groove 10. Then, according to the size of the PCBN composite soldering head 11 to be clamped, multiple long locking screws 9 are manually turned to make multiple trapezoidal sliders 8 slide and clamp the PCBN composite soldering head 11. After the multiple trapezoidal sliders 8 are slid to the appropriate position, the upper part of the left clamping member 3 is elastically deformed by tightening the clamping screw 4, thereby making the left clamping member 3 more flexible. The trapezoidal protrusion 31 on the upper part of the fastener 3 gradually shifts and extends to the left end of the trapezoidal clamping groove 10, thereby clamping a batch of PCBN composite soldering heads 11. When disassembly is required, first loosen the clamping screw 4 in the reverse direction, then loosen the long locking screw 9 in the reverse direction one by one, and then remove the clamped multiple PCBN composite soldering heads 11 of various sizes. This achieves the effect of simultaneously clamping and processing batches of PCBN composite soldering heads 11 of different sizes and thicknesses, and also improves processing efficiency and processing diversity.

[0036] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A kind of PCBN composite welding tool bit batch bottom end face grinding clamp, including base (1), right clamping piece (2), left clamping piece (3), clamping screw (4), the right clamping piece (2) is fixedly connected with the right side of the base (1) by first group of fastening screw (5), the left clamping piece (3) is fixedly connected with the left side of the base (1) by second group of fastening screw (6), the clamping screw (4) is through the upper end of the left clamping piece (3) to the base (1) base body, it is characterized by: The upper rear side of the base (1) is provided with a clamping trapezoidal body (101), and the upper front side of the base (1) is provided with a plurality of clamping mechanisms (102) which are linearly arranged and equally spaced.

2. The fixture for batch end-face grinding of PCBN composite welding tool bits according to claim 1, characterized in that: The upper front side of the base (1) is provided with a plurality of limiting slide rail parts (7) which are linearly arranged and equally spaced.

3. The fixture for batch grinding the bottom end face of the PCBN composite welding tool head according to claim 2, characterized in that: The clamping mechanism (102) comprises a trapezoidal slide block (8) and a long locking screw (9), the bottom side of the trapezoidal slide block (8) is provided with a T-shaped sliding groove (81), the trapezoidal slide block (8) is slidably connected with the limiting slide rail part (7) through the T-shaped sliding groove (81), the long locking screw (9) penetrates the trapezoidal slide block (8) and the clamping trapezoidal body (101) in sequence, and the tail of the long locking screw (9) is threadedly connected with the clamping trapezoidal body (101).

4. The fixture for batch grinding the bottom end face of the PCBN composite welding tool head according to claim 3, characterized in that: The clamping trapezoidal body (101), the trapezoidal slide block (8), the base (1), the right clamping part (2) and the left clamping part (3) form a trapezoidal clamping groove (10).

5. The fixture for batch end face grinding of PCBN composite welding tool bits according to claim 4, characterized in that: The left side of the base (1) is provided with a sunken platform (103).

6. The fixture for batch grinding the bottom end face of a PCBN composite welding tool head according to claim 5, characterized in that: The upper end of the left clamping part (3) is provided with a trapezoidal convex part (31) which can extend into the trapezoidal clamping groove (10), and the right side of the left clamping part (3) is provided with a convex platform (32) which is fitted with the sunken platform (103), and the upper end of the convex platform (32) is provided with a C-shaped groove (33).

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