Polishing jig for diamond compact of drill bit

Abstract

The utility model belongs to the technical field of drill bit machining equipment, and particularly relates to a drill bit diamond compact polishing jig which comprises a template and a base, a positioning groove used for placing a compact is formed in the upper end of the template, a demolding hole communicated with the bottom of the positioning groove is formed in the template in a penetrating mode, and the diameter of the demolding hole is smaller than that of the positioning groove. A cavity is further formed in the bottom of the mold plate, a demolding plate capable of sliding is arranged in the cavity, a demolding pin sliding in the demolding hole is fixedly arranged at the upper end of the demolding plate, and a locking mechanism for locking the mold plate and the base is arranged between the mold plate and the base. The mold plate and the base are conveniently disassembled and assembled through the locking mechanism, the base is fixed to a machine tool sliding base, the mold plate is used for placing composite sheets, and feeding and discharging convenience is improved; the clamping strip, the sliding seat, the lock plate and the lock seat are matched to ensure the mounting stability; in addition, the demolding holes communicate with the positioning grooves, demolding pins are arranged in the demolding holes, the polished composite sheets can be ejected out when the demolding plate is pushed, and demolding convenience and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drill bit processing equipment technical field, especially, relate to a drill bit diamond compact polishing fixture. BACKGROUND

[0002] Drill bit diamond compact is a kind of high-performance cutting material composed of diamond layer and cemented carbide substrate, and is widely used in petroleum, natural gas drilling and geological exploration and other fields.The diamond layer is sintered from micron-sized diamond particles under high temperature and high pressure, and has very high hardness and wear resistance, while the cemented carbide substrate is usually composed of tungsten carbide and cobalt, providing good toughness and impact resistance.PDC drill bit has the advantages of high wear resistance, high hardness, good thermal stability and high drilling efficiency, and is suitable for drilling in soft to medium-hard strata, core drilling, mineral exploration, hard rock drilling and tunneling and other scenes;

[0003] The compact production process includes raw material preparation, mixing and molding, high temperature and high pressure sintering, post-processing and quality detection, wherein the post-processing includes polishing and grinding of the sintered compact to ensure surface flatness and dimensional accuracy.The compact is placed on a polishing jig, and then the jig is placed on the cross slide of the polishing machine, the polishing wheel on the machine is started, and the compact is moved to the polishing disc below by moving the slide, thereby achieving polishing.

[0004] Because the compact is placed for a long time, it needs to be removed from the slide, and the existing jig and slide are locked by bolts, which is not convenient to operate, and after polishing, the jig needs to be turned over and the compact is removed by knocking the jig, which can damage the jig and is not convenient to operate.

[0005] To solve the above problems, a drill bit diamond compact polishing jig is provided in the present application. Utility model content

[0006] The utility model aims at providing a kind of drill bit diamond compact polishing jig, solve the problem raised in the above background technology.

[0007] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a kind of drill bit diamond compact polishing jig, including template and base, the template upper end is equipped with the positioning slot for the compact placement, the template is equipped with the demoulding hole with the bottom of positioning slot intercommunication in the inside, the demoulding hole diameter is less than positioning slot, the template bottom is also formed with cavity, the cavity is equipped with the demoulding template that can slide in the inside, the demoulding template upper end is fixed with the demoulding pin that slides in demoulding hole, the template is equipped with the locking mechanism that locks the two with base.

[0009] Further, the template is fixed with a clamping strip on both sides, one end of the clamping strip is formed with a first step, the upper end of the base is provided with a supporting table, the supporting table is fixed with a sliding seat which is in sliding fit with the clamping strip on both sides, and a second step is formed in one side of the sliding seat and matched with the first step.

[0010] Further, the locking mechanism comprises a lock plate hinged to one end of the base near the second step and a lock seat fixed to the front end of the base, the lock plate is inserted into the lock seat by rotation and blocks the sliding seat in front of the second step.

[0011] Further, a handle for rotation is further hinged to the lock plate, and the locking mechanism is provided in two symmetrical groups.

[0012] Further, a connecting hole is formed in the demolding plate, a threaded groove is formed in the template, and a positioning bolt is screwed and compressed in the threaded groove after penetrating the connecting hole.

[0013] Further, a spring groove is formed in the upper surface of the demolding plate, a return spring is arranged between the spring groove and the cavity and abuts against each other, and the demolding pin is reset into the demolding hole through the return spring.

[0014] Further, the base is placed on the cross slide table through the bottom plane, and is fixed and compressed by penetrating the mounting hole with the bolt and the slide table.

[0015] The utility model has the following beneficial effects:

[0016] The utility model discloses a template and base are set up into convenient dismounting structure through the locking mechanism, wherein the base is directly fixed on the machine tool slide, the template is used for placing the composite sheet, improves the feeding convenience of composite sheet in the machine tool, and the cooperation of the clamping strip, the sliding seat, the lock plate and the lock seat can ensure the installation stability of the base on the template.

[0017] The utility model discloses a demolding hole communicated with the positioning groove and a demolding pin arranged in the hole, when the demolding plate is pushed, the demolding pin can push out the polished composite sheet in the positioning groove, improving the convenience and efficiency.

[0018] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0020] Figure 1 It is the overall appearance structure schematic view of the utility model;

[0021] Figure 2 It is Figure 1 It is the structure schematic view of the fixture removal action;

[0022] Figure 3 It is Figure 1 It is the structure schematic view of the main view partial section;

[0023] Figure 4 It is the structure schematic view of the base and locking mechanism split;

[0024] Figure 5 It is the structure schematic view of the fixture bottom view;

[0025] Figure 6 It is Figure 5 It is the structure schematic view of the disassembly;

[0026] Figure 7 It is Figure 6 It is the structure schematic view of the fixture layout section of view;

[0027] In the drawings, the component list represented by each sign is as follows:

[0028] In the drawings: 1, template;11, positioning groove;12, demolding hole;13, cavity;14, clamping strip;141, first step;15, threaded groove;2, base;21, support table;211, mounting hole;22, sliding seat;221, second step;3, demolding plate;31, demolding pin;32, connecting hole;33, spring groove;4, locking mechanism;41, lock plate;42, handle;43, lock seat;5, return spring;6, positioning bolt. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] Please refer to Figure 1 - Figure 7 As shown in the figure, the utility model is a drill bit diamond compact piece polishing jig, including template 1 and base 2, the upper end of template 1 is equipped with the positioning groove 11 for the compact piece to place, after the compact piece is placed on the positioning groove 11, the top is in the protruding state and is contacted with the polishing wheel to polish, the inside of template 1 is equipped with the demolding hole 12 that is intercommunicated with the bottom of positioning groove 11, the diameter of demolding hole 12 is less than positioning groove 11, through the size limitation, it does not affect the stable placement of compact piece on positioning groove 11, the bottom of template 1 is also formed with cavity 13, the inside of cavity 13 is equipped with the demolding template 3 that can slide, the upper end of demolding template 3 is fixed with the demolding pin 31 that slides in demolding hole 12, locking mechanism 4 that locks the two is equipped between template 1 and base 2.

[0032] Wherein, the both sides of template 1 are fixedly connected with clamping strip 14, one end of clamping strip 14 is formed with first step 141, the upper end of base 2 is equipped with support table 21, the both sides of support table 21 are fixedly connected with sliding seat 22 that is slidably connected with clamping strip 14, one side of sliding seat 22 is equipped with second step 221 that is matched with first step 141, the cooperation of clamping strip 14 and sliding seat 22 in the embodiment plays the vertical limiting action of template 1 on base 2, and first step 141 and second step 221 play the one-way limiting action of template 1 on base 2 in the horizontal direction, then locking is completed through the cooperation with locking mechanism 4.

[0033] Wherein, locking mechanism 4 includes lock plate 41 that is hinged to one end of base 2 close to second step 221 and lock seat 43 that is fixed to the front end of base 2, lock plate 41 is inserted into lock seat 43 by rotating and blocks sliding seat 22 towards the front of second step 221, in the embodiment, when lock plate 41 is locked with lock seat 43, lock plate 41 is in contact with the front end of template 1 and blocks it, and template 1 is fixed on base 2 through the cooperation of first step 141 and second step 221.

[0034] Wherein, handle 42 that is used for rotating is also hinged to lock plate 41, locking mechanism 4 is symmetrically provided in two groups, in the embodiment, handle 42 facilitates the rotation of lock plate 41, when lock plate 41 is rotated outward, it can be completely separated from template 1, so that template 1 can be smoothly pulled out of base 2.

[0035] Wherein, connecting hole 32 is formed in demolding template 3, threaded groove 15 is formed in template 1, positioning bolt 6 is screwed and pressed in threaded groove 15 after penetrating connecting hole 32, in the embodiment, only the part of positioning bolt 6 that cooperates with connecting hole 32 is provided with a thread, and the part that penetrates connecting hole 32 plays a guiding role in the sliding of demolding template 3 in cavity 13, after positioning bolt 6 is pressed in threaded groove 15, demolding template 3 is limited to move in cavity 13.

[0036] The upper surface of the stripping plate 3 is provided with a spring groove 33, the spring groove 33 and the cavity 13 are provided with a return spring 5 abutting each other, the stripping pin 31 is reset into the stripping hole 12 through the return spring 5, and the middle of the spring groove 33 further forms a positioning column in the embodiment, the return spring 5 plays a stabilizing role, and the bottom surface of the stripping plate 3 is flush with the bottom surface of the template 1 under the action of the return spring 5 in a normal state.

[0037] The base 2 is placed on the cross slide through the bottom plane, and is fixed and installed with the slide through the bolt penetrating the installation hole 211. In the embodiment, the cross slide is installed on the polishing machine tool, and the bolt penetrating the installation hole 211 is fixed and installed with the slide through the thread.

[0038] It can be understood that the template and the base are conveniently disassembled through the locking mechanism, the base is fixed on the machine tool slide, and the template is used to place the composite sheet, thereby improving the convenience of feeding and discharging; the installation stability is ensured through the cooperation of the clamping strip, the slide, the locking plate and the locking seat; in addition, the stripping hole is communicated with the positioning groove, the stripping pin is arranged inside, the composite sheet after polishing can be pushed out when the stripping plate is pushed, and the convenience and efficiency of stripping are improved.

[0039] One specific application of the embodiment is as follows:

[0040] Assembling of the template 1 and the stripping plate 3: the return spring 5 is placed in the spring groove 33, the stripping plate 3 is placed inside the cavity 13, the stripping pin 31 is inserted into the stripping hole 12, and the positioning bolt 6 is screwed and locked with the threaded groove 15 after penetrating the connecting hole 32. In this state, the end of the positioning bolt 6 and the template 1 form a moving space for the stripping plate 3, the return spring 5 is abutted between the template 1 and the stripping plate 3 at this time, and the stripping pin 31 is located in the stripping hole 12 under the action of the return spring 5;

[0041] As shown in Figure 1 The locking state of the template 1 and the base 2 is shown, the locking mechanism 4 is in the locked state at this time, the template 1 is taken down by first separating from the locking of the locking mechanism 4, and then the template 1 is pulled out from the base 2;

[0042] Specifically, the locking plate 41 is rotated outward to be separated from the locking seat 43 through the handle 42, the template 1 is pulled out outward through the gap between the template 1 and the base 2, the first step 141 is separated from the second step 221, the clamping strip 14 is separated from the slide 22, the template 1 is taken out and placed in an inclined state, the stripping plate 3 is then pushed into the cavity 13, the stripping pin 31 moves from the stripping hole 12 to the positioning groove 11, the stripping pin 31 pushes out the composite sheet located in the positioning groove 11, the return spring 5 is compressed during the pressing action, the stripping plate 3 is released after the composite sheet is taken down, and the stripping pin 31 retreats into the stripping hole 12 under the action of the return spring 5.

[0043] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the utility model disclosed above are only used for helping to set forth the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the whole scope and equivalents thereof.

Claims

1. A grinding fixture for diamond composite drill bits, comprising a template (1) and a base (2), wherein the upper end of the template (1) is provided with a positioning groove (11) for placing the composite drill bit, characterized in that: The template (1) has a demolding hole (12) that communicates with the bottom of the positioning groove (11) through it. The diameter of the demolding hole (12) is smaller than that of the positioning groove (11). A cavity (13) is also formed at the bottom of the template (1). A sliding demolding template (3) is provided inside the cavity (13). A demolding pin (31) that slides in the demolding hole (12) is fixed at the upper end of the demolding template (3). A locking mechanism (4) is provided between the template (1) and the base (2) to lock them together.

2. The drill bit diamond composite sheet grinding fixture according to claim 1, characterized in that: The template (1) is fixed with clips (14) on both sides. One end of the clip (14) is formed with a first step (141). The upper end of the base (2) is provided with a support platform (21). The two sides of the support platform (21) are fixed with slides (22) that slide with the clips (14). One side of the slides (22) is provided with a second step (221) that cooperates with the first step (141).

3. The drill bit diamond composite sheet grinding fixture according to claim 1, characterized in that: The locking mechanism (4) includes a locking plate (41) hinged to one end of the base (2) near the second step (221) and a locking seat (43) fixed to the front end of the base (2). The locking plate (41) rotates and inserts into the locking seat (43) to block the slide (22) from the front of the second step (221).

4. A drill bit diamond composite sheet grinding fixture according to claim 3, characterized in that: The locking plate (41) is also hinged with a handle (42) for rotation, and the locking mechanism (4) is arranged in two symmetrical sets.

5. A drill bit diamond composite sheet grinding fixture according to claim 1, characterized in that: The template (3) has a through hole (32), and the template (1) has a threaded groove (15). The positioning bolt (6) passes through the through hole (32) and is threadedly pressed into the threaded groove (15).

6. A drill bit diamond composite sheet grinding fixture according to claim 1, characterized in that: The upper surface of the demolding template (3) is provided with a spring groove (33), and a return spring (5) is provided between the spring groove (33) and the cavity (13) to abut against each other. The demolding pin (31) is reset into the demolding hole (12) through the return spring (5).

7. A drill bit diamond composite sheet grinding fixture according to claim 1, characterized in that: The base (2) is placed on the cross slide by its bottom plane and is fixed to the slide by bolts through the mounting hole (211).

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