Positioning surface plane grinding clamp

Abstract

The utility model relates to a positioning surface plane grinding processing clamp, which comprises a fixed main cylinder and an end cap, a hollow core cavity is arranged at the position of the axis of the fixed main cylinder, cutting areas are arranged on two sides of the fixed main cylinder, two ends of the cutting areas in the length direction are provided with concave cambered surfaces, a plurality of threaded holes are arranged on the fixed main cylinder, and the end cap is arranged on the fixed main cylinder. The end cap is detachably arranged at one end of the fixing frame main cylinder, an insertion hole is formed in the middle of the end cap, and the insertion hole and the hollow core cavity are designed to be equal in diameter. The fixed main cylinder and the end cap are designed and can be used for fixing a machining cutter in a matched mode, the cutting areas are arranged on the two sides of the fixed main cylinder, when the cutter is inserted into the hollow cavity in a penetrating mode, the curved surface in the middle of the cutter body can be exposed through the cutting areas to form the exposed area, and at the moment, the exposed area can be machined; and the end cap is matched with the annular elastic part and the connecting part of the fixed main body.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping tools, and specifically to a positioning surface surface grinding fixture. Background Art

[0002] PCD (Polycrystalline Diamond) is a kind of polycrystalline diamond polymer made by sintering high-quality diamond (0.5μm~50μm) with a certain amount of catalyst at high temperature and high pressure (1450~1700℃, 5.5~7.0GPa). For a long time, PCD has been quickly applied to various fields due to its extremely high hardness and excellent wear resistance, especially in the field of cutting tools, where it is playing an increasingly important role. PCD tools can be used to form turning tools and boring tools, and can also produce milling cutters, drill bits, reamers, saws, and engraving tools. However, when processing the tool surface, it is generally difficult to control it because of the difficulty in positioning. At the same time, since the tool is cylindrical, its processing surface is the curved surface of the tool outer wall, which is easy to roll, resulting in low processing efficiency. In view of this defect, this invention is specially applied. Utility Model Content

[0003] In order to solve the above-mentioned problems in the prior art, the utility model provides a positioning surface surface grinding fixture which can improve the above-mentioned deficiencies.

[0004] The utility model relates to a positioning surface surface grinding fixture, comprising a fixed main cylinder and an end cap, wherein a hollow cavity is arranged at the axis center line position of the fixed main cylinder, cutting areas are arranged on both sides of the fixed main cylinder, the cutting areas have concave arc surfaces at both ends in the length direction, the depth of the cutting area accounts for 75% to 85% of the outer radius of the fixed main cylinder, a plurality of threaded holes are arranged on the fixed main cylinder, the end cap can be detachably arranged at one end of the fixed frame main cylinder, an insertion hole is arranged in the middle of the end cap, and the insertion hole is designed to have the same diameter as the hollow cavity.

[0005] Furthermore, an annular connecting portion is provided at the end of the fixed main tube that contacts the end cap, an inner concave platform is provided on the inner side of the connecting portion, an outer concave platform is provided on the outer side of the connecting portion, an external thread is provided on the side wall of the outer concave platform, and an annular elastic portion is provided at the position of the inner concave platform.

[0006] Furthermore, an outer insertion portion and an inner insertion portion of the outer shape are provided on the side where the fixing main part contacts the connecting part, the length of the outer insertion portion is greater than the length of the inner insertion portion, an annular groove is formed between the inner insertion portion and the outer insertion portion, and an internal thread is provided on the contact surface between the outer insertion portion and the outer concave platform.

[0007] Furthermore, when the sleeve end cap is rotated and fixed by means of the internal thread and the external thread, the inner insertion portion abuts against the outer end of the annular elastic portion, and the inner end of the annular elastic portion abuts against the end surface of the inner concave platform.

[0008] Furthermore, the insertion hole and the hollow cavity are used for inserting a processing tool.

[0009] Furthermore, a stud is arranged in the threaded hole to resist the side surface of the machining tool.

[0010] Furthermore, an anti-skid pad is embedded at the forward end of the stud.

[0011] The utility model is designed to fix the main cylinder and the end cap, which can be used to cooperate with the fixed processing tool, wherein cutting areas are set on both sides of the fixed main cylinder, and when the tool is inserted into the hollow cavity, the curved surface in the middle position of the tool body will be exposed through the cutting area to form an exposed area, and the exposed area can be processed at this time, and the end cap and the annular elastic part, and the connecting part of the fixed body cooperate with each other, and the processing tool set in the end cap and the fixed main cylinder is clamped through the deformation of the annular elastic part. At the same time, the threaded hole on the fixed main cylinder is used to resist the side of the processing tool through the stud. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model.

[0013] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0014] Figure 3 It is a schematic diagram of the elastic part structure.

[0015] Figure 4 This is the installation status diagram of the machining tool.

[0016] Figure 5 This is a cross-sectional view of the machining tool installation status.

[0017] Illustration: 1 fixed main cylinder, 2 cutting area, 3 concave arc surface, 4 hollow cavity, 5 threaded hole, 6 stud, 61 anti-slip pad, 7 end cap, 70 annular groove, 71 inner insertion part, 71 outer insertion part, 721 external thread, 8 connecting part, 81 external thread, 9 annular elastic part, 91 inner area, (ab) extrusion deformation area, 92 outer end of the inner area, 10 inner concave platform, 101 outer concave platform, 11 processing tool, 111 exposed area. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] like Figure 1-5As shown, the utility model relates to a positioning surface surface grinding fixture, including a fixed main cylinder 1 and an end cap 7, a hollow cavity 4 is arranged at the axial centerline position of the fixed main cylinder, the inner wall of the hollow cavity is circular and can fit with the outer wall of the processing tool, cutting areas 2 are arranged on both sides of the fixed main cylinder, the cutting areas have concave arc surfaces 3 at both ends in the length direction, the depth of the cutting area accounts for 75% to 85% of the outer radius of the fixed main cylinder, due to the existence of the cutting area, the fixed main cylinder is thin in the middle and has an open side wall, the cutting area is connected with the hollow cavity, a plurality of threaded holes 5 are arranged on the fixed main cylinder, and the threaded holes are respectively distributed at both ends and the middle position of the open side wall, the end cap 7 can be detachably arranged at one end of the fixed frame main cylinder, an insertion hole 701 is arranged in the middle of the end cap, and the insertion hole is designed to be equal in diameter to the hollow cavity 4.

[0020] As a technical improvement, an annular connecting portion 8 is provided at the end of the fixed main cylinder that contacts the end cap, an inner concave platform 10 is provided on the inner side of the connecting portion, an outer concave platform 101 is provided on the outer side of the connecting portion, an external thread 81 is provided on the side wall of the outer concave platform, and an annular elastic portion 9 is provided at the position of the inner concave platform. The annular elastic portion is made of a deformable elastic material, such as polyether ester rubber, propylene-based elastomer, etc.

[0021] As a technical improvement, an outwardly protruding outer insertion portion 72 and an outwardly protruding inner insertion portion 71 are provided on the side where the fixed main cylinder 1 contacts the connecting portion 8. The length of the outer insertion portion is greater than the length of the inner insertion portion. An annular groove 70 is formed between the inner insertion portion and the outer insertion portion. An internal thread 721 is provided on the contact surface between the outer insertion portion and the outer concave platform. The length of the outer insertion portion is less than the length of the outer concave platform so that there is residual space for advancement during the rotation of the end cap.

[0022] As shown in 2 and 3, as a technical improvement, when the sleeve end cap is rotated and fixed by the internal thread and the external thread, the inner insertion part is against the outer end of the annular elastic part, wherein the middle of the annular elastic part forms an extrusion deformation area a, b, wherein the inner area 91 of the extrusion deformation area can contact the processing tool, and the outer end 92 of the inner area of ​​the pressurized deformation area contacts the edge surface of the inner concave platform, and the inner end of the annular elastic part is against the end surface of the inner concave platform, as shown in FIG. Figure 3 Extrusion deformation areas a and b in the middle.

[0023] As a technical improvement, the insertion hole and the hollow cavity are used for inserting the machining tool.

[0024] As a technical improvement, a stud 6 is provided in the threaded hole to resist the side surface of the machining tool.

[0025] As a technical improvement, an anti-skid pad 61 is embedded in the forward end of the stud.

[0026] like Figure 4As shown in the instructions for use, insert the processing tool 11 into the fixed main cylinder and the end cap, and then rotate the end cap. Since the annular elastic part is arranged at the position of the inner concave platform, during the tightening process, the inner insertion part abuts against the outer end of the annular elastic part, and the inner end of the annular elastic part abuts against the end surface of the inner concave platform, causing the deformation of both sides of the annular elastic part to clamp the processing tool. In addition, a stud 6 is arranged in the threaded hole to resist the side of the processing tool to form a secondary fixation. Due to the existence of the cutting area, an exposed area is formed in the middle of the processing tool, which can be used as the processing area 2. This design is clever in structure and simple and convenient in design.

Claims

1. A positioning surface surface grinding fixture, characterized in that: It includes a fixed main cylinder and an end cap, a hollow cavity is arranged at the axis centerline position of the fixed main cylinder, cutting areas are arranged on both sides of the fixed main cylinder, the cutting areas have concave arc surfaces at both ends in the length direction, the depth of the cutting area accounts for 75% to 85% of the outer radius of the fixed main cylinder, a plurality of threaded holes are arranged on the fixed main cylinder, the end cap can be detachably arranged at one end of the fixed frame main cylinder, an insertion hole is arranged in the middle of the end cap, and the insertion hole is designed to have the same diameter as the hollow cavity.

2. The positioning surface surface grinding fixture according to claim 1, characterized in that: An annular connecting portion is arranged at one end of the fixed main cylinder in contact with the end cap, an inner concave platform is arranged inside the connecting portion, an outer concave platform is arranged outside the connecting portion, an external thread is arranged on the side wall of the outer concave platform, and an annular elastic portion is arranged at the position of the inner concave platform.

3. A positioning surface surface grinding fixture according to claim 2, characterized in that: An outer insertion part and an inner insertion part of an outer shape are arranged on the side where the fixing main part contacts the connecting part. The length of the outer insertion part is greater than that of the inner insertion part. An annular groove is formed between the inner insertion part and the outer insertion part. An internal thread is arranged on the contact surface between the outer insertion part and the outer concave platform.

4. A positioning surface surface grinding fixture according to claim 3, characterized in that: When the sleeve end cap is rotated and fixed by means of the internal thread and the external thread, the inner insertion portion abuts against the outer end of the annular elastic portion, and the inner end of the annular elastic portion abuts against the end surface of the inner concave platform.

5. The positioning surface surface grinding fixture according to claim 1, characterized in that: The insertion hole and the hollow cavity are used for inserting a machining tool.

6. The positioning surface surface grinding fixture according to claim 1, characterized in that: A stud is arranged in the threaded hole to resist the side surface of the machining tool.

7. A positioning surface surface grinding fixture according to claim 6, characterized in that: The forward end of the stud is inlaid with an anti-skid pad.

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