Clamp for assisting boring of workpiece

Abstract

The utility model discloses a clamp for assisting boring of a workpiece, and belongs to the field of boring clamps. A first arc-shaped surface and a second arc-shaped surface are formed on a workpiece, and the clamp comprises a fixing seat, a pressing piece, a first positioning piece and a second positioning piece. The workpiece fixing device has the beneficial effects that after a workpiece is placed on the fixing base, the first positioning piece can abut against the first arc-shaped face of the workpiece, the second positioning piece can abut against the second arc-shaped face of the workpiece, and the first clamping part and the second clamping part formed on the second positioning piece can fix the workpiece to the fixing position on the fixing base; and the pressing piece is used for preventing the workpiece from moving in the direction perpendicular to the fixed seat, so that the workpiece is completely positioned, and the boring quality is not affected in the boring process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of boring jigs, in particular, to a jig for assisting workpiece boring. BACKGROUND

[0002] In the field of mechanical processing, boring machines are often used to bore arc-shaped workpieces. Due to the special structure of the arc-shaped workpieces, it is difficult for the jig on the traditional boring machine to fasten them, which may cause the workpieces to shake during the boring process, resulting in uneven hole openings and seriously affecting the boring quality. CONTENT OF THE UTILITY MODEL

[0003] The summary part of the present application is used to introduce the concept in a brief form, which will be described in detail in the specific embodiment part. The summary part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0004] In order to solve the technical problems mentioned in the background part, some embodiments of the present application provide a jig for assisting workpiece boring. The workpiece forms a first arc surface and a second arc surface. The jig comprises a fixed seat, a pressing piece, a first positioning piece and a second positioning piece. The first positioning piece and the second positioning piece are arranged on the fixed seat. The workpiece is placed on the fixed seat. The first positioning piece is used to abut the first arc surface. The second positioning piece forms a first clamping part and a second clamping part. The first clamping part and the second clamping part are used to abut the workpiece. The first clamping part and the second clamping part form a clamping surface abutting the second arc surface. The pressing piece is used to fix the workpiece on the fixed seat in a direction perpendicular to the fixed seat.

[0005] Further, the fixed seat forms a guide groove. The first positioning piece is used to approach or move away from the workpiece along the extension direction of the guide groove. The jig further comprises a limiting piece. The limiting piece is used to fix the first positioning piece in the guide groove.

[0006] Further, the first positioning member comprises an abutting block, a clamping block and a fixing block; the abutting block is used to form an abutting portion; the abutting portion is used to abut against the first arc surface; the abutting block forms a first clamping surface; the first clamping surface is inclined to the fixing seat by 60-80°; the fixing block forms a second clamping surface; the second clamping surface is perpendicular to the fixing seat; the clamping block forms a third clamping surface parallel to the first clamping surface and a fourth clamping surface parallel to the second clamping surface; the clamping block is used to be inserted between the abutting block and the fixing block in a direction perpendicular to the fixing seat, so that the abutting portion abuts against the workpiece; the clamping block and the fixing block both form a positioning hole; a threaded hole is formed in the guide groove; the limiting member is used to be fixed through the positioning hole and the threaded hole, so that the clamping block or the fixing block is fixed between the abutting block and the fixing block.

[0007] Further, the abutting block forms a first sliding groove; the first sliding groove is parallel to the first clamping surface; the fixing block forms a second sliding groove; the second sliding groove is parallel to the second clamping surface; the clamping block forms a convex portion matching the shapes of the first sliding groove and the second sliding groove, so that the clamping block is inserted between the abutting block and the fixing block in a direction perpendicular to the fixing seat.

[0008] Further, the abutting block forms a containing cavity containing liquid; the containing cavity is provided with positioning rods and guide tubes; the positioning rods and the guide tubes are both provided with three groups; one end of the positioning rods away from the containing cavity forms the abutting portion; the guide tubes are arranged in the containing cavity in a direction parallel to the fixing seat; the positioning rods are used to be inserted into the guide tubes, and the positioning rods and the guide tubes are in sliding connection; the length of the guide tubes is greater than the length of the positioning rods; when one group of the positioning rods abuts against the first arc surface, the other two groups of the positioning rods can move along the axial direction of the guide tubes to abut against the first arc surface.

[0009] Further, one end of the positioning rod inserted into the guide tube is provided with a rubber protrusion; the guide tube forms a limiting portion; when the rubber protrusion and the positioning rod move away from the workpiece along the axial direction of the guide tube, the rubber protrusion abuts against the limiting portion.

[0010] Further, the abutting block forms a U-shaped notch; two sides of the U-shaped notch are used to form the abutting portion.

[0011] Further, the fixing seat forms an extension hole matching the boring position of the workpiece.

[0012] The application has the following beneficial effects:

[0013] After the workpiece is placed on the fixing base, the first positioning member can abut against the first arc-shaped surface of the workpiece, the second positioning member can abut against the second arc-shaped surface of the workpiece, and the first clamping part and the second clamping part formed on the second positioning member can fix the workpiece at the fixed position on the fixing base, and the pressing member is used for preventing the workpiece from moving in the direction perpendicular to the fixing base, so as to realize complete positioning of the workpiece, and the quality of the boring is not affected during the boring process. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of this application, are intended to provide further understanding of the application and are incorporated herein for a purpose of explanations and are in no way limiting to the present application.

[0015] In addition, throughout the drawings, same or similar reference numerals are intended to represent same or similar elements or features. It should be understood that the drawings are schematic and elements and features are not necessarily drawn to scale.

[0016] In the drawings:

[0017] Figure 1 is a whole schematic view according to the embodiment of the present application;

[0018] Figure 2 is Figure 1 A part enlarged view of A of the embodiment, mainly showing the structure of the abutting block, the clamping block and the fixing block;

[0019] Figure 3 is a partial exploded schematic view of the embodiment, mainly showing the structure of the first sliding groove and the second sliding groove;

[0020] Figure 4 is a partial exploded schematic view of the embodiment, mainly showing the structure of the abutting part;

[0021] Figure 5 is a structural schematic view of a part of the embodiment, mainly showing the structure of the first clamping part and the second clamping part;

[0022] Figure 6 is a structural schematic view of a part of the embodiment, mainly showing the structure of the positioning rod;

[0023] Figure 7 is a partial exploded schematic view of the embodiment, mainly showing the structure of the guide pipe.

[0024] Reference signs

[0025] 1, workpiece; 11, first arc surface; 12, second arc surface; 2, fixed seat; 21, guide groove; 3, pressing piece; 4, first positioning piece; 41, abutting block; 411, abutting part; 412, first clamping surface; 413, first sliding groove; 414, U-shaped notch; 415, accommodating cavity; 4151, positioning rod; 4152, guide tube; 4153, rubber protrusion; 42, fixed block; 421, second clamping surface; 422, second sliding groove; 43, clamping block; 431, third clamping surface; 432, fourth clamping surface; 433, positioning hole; 434, protruding part; 5, second positioning piece; 51, first clamping part; 52, second clamping part. DETAILED DESCRIPTION

[0026] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes, and are not intended to limit the scope of protection of the present disclosure.

[0027] In addition, it should be further noted that only parts related to the invention are shown in the drawings for ease of description. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0028] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units.

[0029] It should be noted that the modification of "one" or "multiple" mentioned in the present disclosure is illustrative and not restrictive, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0031] Reference Figures 1-5 ,

[0032] The utility model provides a kind of clamp for assisting workpiece boring, workpiece 1 forms first arc surface 11 and second arc surface 12, clamp includes: fixed seat 2, pressing piece 3, first positioning piece 4 and second positioning piece 5.Pressing piece 3 and second positioning piece 5 are block structure.Both first positioning piece 4 and second positioning piece 5 are arranged on fixed seat 2.Workpiece 1 is used to place on fixed seat 2.Both first positioning piece 4 and second positioning piece 5 are used to abut with first arc surface 11.Second positioning piece 5 is used to form first clamping portion 51 and second clamping portion 52.Both first clamping portion 51 and second clamping portion 52 are used to abut with workpiece 1.The card surface that forms between first clamping portion 51 and second clamping portion 52 is used to abut with second arc surface 12.Both first positioning piece 4 and second positioning piece 5 are used to position workpiece 1 longitudinally, and first clamping portion 51 and second clamping portion 52 on second positioning piece 5 are used to position workpiece 1 transversely.Pressing piece 3 is used to fix workpiece 1 on fixed seat 2 along the direction perpendicular to fixed seat 2.After workpiece 1 is placed on fixed seat 2, first positioning piece 4 can abut with the first arc surface 11 of workpiece 1, second positioning piece 5 can abut with the second arc surface 12 of workpiece 1, and the first clamping portion 51 and second clamping portion 52 formed on second positioning piece 5 can fix workpiece 1 on the fixed position on fixed seat 2, and pressing piece 3 is used to prevent workpiece 1 from moving along the direction perpendicular to fixed seat 2, so as to realize the complete positioning of workpiece 1, and the quality of boring is not affected during boring.

[0033] Specifically, fixed seat 2 forms an extension hole matched with the boring position of workpiece 1.During boring of workpiece 1, the boring cutter on the boring machine may cause certain damage to fixed seat 2, so the extension hole is arranged on fixed seat 2.

[0034] Specifically, fixed seat 2 forms a guide groove 21. First positioning piece 4 is used to approach or move away from workpiece 1 along the extension direction of guide groove 21. When the area occupied by workpiece 1 placed on fixed seat 2 is larger, first positioning piece 4 can move away from workpiece 1 along the extension direction of guide groove 21, so that workpiece 1 can be placed on fixed seat 2. When workpiece 1 is placed on fixed seat 2, first positioning piece 4 can approach workpiece 1 along the extension direction of guide groove 21 and abut with first arc surface 11. The clamp further comprises a limiting piece. The limiting piece is used to fix first positioning piece 4 in guide groove 21. The limiting piece is a bolt. When first positioning piece 4 abuts tightly with first arc surface 11, the limiting piece can fix first positioning piece 4 in the fixed position on fixed seat 2, to prevent first positioning piece 4 from moving away from workpiece 1 along the extension direction of guide groove 21.

[0035] Specifically, the first positioning member 4 comprises an abutting block 41, a clamping block 43 and a fixing block 42. The abutting block 41 is used to form an abutting portion 411. The abutting portion 411 is used to abut against the first arc surface 11. The abutting block 41 forms a first clamping surface 412. The first clamping surface 412 is inclined at an angle of 60-80° with respect to the fixing seat 2. The fixing block 42 forms a second clamping surface 421. The second clamping surface 421 is perpendicular to the fixing seat 2. The clamping block 43 is formed with a third clamping surface 431 parallel to the first clamping surface 412 and a fourth clamping surface 432 parallel to the second clamping surface 421. The clamping block 43 is used to be inserted between the abutting block 41 and the fixing block 42 in a direction perpendicular to the fixing seat 2, so that the abutting portion 411 abuts against the workpiece 1. The clamping block 43 and the fixing block 42 are both formed with a positioning hole 433. Threaded holes are formed in the guide groove 21. The threaded holes are arranged in multiple. The positions of the threaded holes in the guide groove 21 are arranged according to the sizes of different workpieces 1. Limiting members are used to be fixed through the positioning holes 433 and the threaded holes, so that the clamping block 43 or the fixing block 42 is fixed between the abutting block 41 and the fixing block 42. When the workpiece 1 is placed on the fixing seat 2, the second arc surface 12 of the workpiece 1 abuts against the second positioning member 5. The abutting block 41 in the guide groove 21 can move in the guide groove 21. The abutting block 41 is moved by an external force, so that the abutting block 41 abuts against the first arc surface 11. Then, the fixing block 42 is moved to a proper position in the guide groove 21. The limiting members are used to be connected through the positioning holes 433 formed on the fixing block 42 and the threaded holes in the guide groove 21, so that the fixing block 42 is fixed on the guide groove 21. At this time, the clamping block 43 can be inserted between the abutting block 41 and the fixing block 42 in a direction perpendicular to the fixing seat 2. The first clamping surface 412 is arranged to enable the clamping block 43 to move the abutting block 41 in a direction towards the workpiece 1 during the insertion process, so as to clamp the workpiece 1. After the clamping block 43 is inserted between the abutting block 41 and the fixing block 42, the clamping block 43 can be fixed on the fixing seat 2 by the limiting members, so as to prevent the clamping block 43 from flying out from between the abutting block 41 and the fixing block 42 due to the abutting block 41 being moved by an external force during the boring process.

[0036] Specifically, the abutting block 41 forms a first sliding groove 413 at the end away from the workpiece 1. The first sliding groove 413 is parallel to the first clamping surface 412. The fixing block 42 forms a second sliding groove 422 at the end opposite to the workpiece 1. The second sliding groove 422 is parallel to the second clamping surface 421. The clamping block 43 forms a protrusion 434 matching the shapes of the first sliding groove 413 and the second sliding groove 422. Since the clamping block 43 can push the abutting block 41 to move towards the workpiece 1 when inserted between the abutting block 41 and the fixing block 42, the third clamping surface 431 formed on the clamping block 43 can slip with the first clamping surface 412 formed on the abutting block 41, and the fourth clamping surface 432 formed on the clamping block 43 can slip with the second clamping surface 421 formed on the fixing block 42, so the clamping block 43 cannot be inserted between the abutting block 41 and the fixing block 42 in the direction perpendicular to the fixing base 2 during the insertion process. Therefore, the first sliding groove 413 is arranged on the abutting block 41, the second sliding groove 422 is arranged on the fixing block 42, and the protrusion 434 is arranged on the clamping block 43. The protrusion 434 can be inserted into the first sliding groove 413 and the second sliding groove 422 to move, so that the clamping block 43 is inserted between the abutting block 41 and the fixing block 42 in the direction perpendicular to the fixing base 2.

[0037] Specifically, the abutting block 41 forms a U-shaped notch 414. The two sides of the U-shaped notch 414 are used to form the abutting portion 411. The U-shaped notch is designed to reduce the range of finishing of the abutting block 41, and also to abut against the first arc-shaped surface 11. Embodiment 2

[0038] Referring to the drawings Figures 6-7

[0039] The difference between the embodiment 1 is that a containing cavity 415 containing liquid is formed in the abutting block 41. A positioning rod 4151 and a guide tube 4152 are arranged in the containing cavity 415. The positioning rod 4151 and the guide tube 4152 are each arranged in three groups. The ends of the three groups of positioning rods 4151 away from the containing cavity 415 form the abutting part 411. The guide tube 4152 is arranged in the containing cavity 415 along the direction parallel to the fixing base 2. The positioning rod 4151 is inserted into the guide tube 4152, and the positioning rod 4151 is in sliding connection with the guide tube. The length of the guide tube 4152 is greater than the length of the positioning rod 4151, so that the liquid in the containing cavity 415 can flow into the guide tube 4152, and the liquid can flow in the guide tube 4152 and contact the positioning rod 4151. When one group of the positioning rods 4151 abuts against the first arc-shaped surface 11, the end of one group of the positioning rods 4151 located in the guide tube 4152 pushes the liquid in the guide tube 4152 into the containing cavity 415, and the liquid in the containing cavity 415 pushes the other two groups of the positioning rods 4151 to move along the axis direction of the guide tube 4152 to approach the workpiece 1 and abut against the first arc-shaped surface 11. The arc-shaped surfaces on different arc-shaped workpieces 1 have different curvatures. The positioning rod 4151 is arranged to enable the abutting block 41 to better abut against the arc-shaped workpiece 1 with different curvatures. The liquid in the embodiment is water.

[0040] Specifically, the end of the positioning rod 4151 inserted into the guide tube 4152 is provided with a rubber protrusion 4153. The rubber protrusion 4153 is used to keep the liquid in the containing cavity 415 and the guide tube 4152 in a closed state. A limiting part is formed on the end of the guide tube 4152 away from the workpiece 1. When the rubber protrusion 4153 and the positioning rod 4151 move away from the workpiece 1 along the axis direction of the guide tube 4152, the rubber protrusion 4153 abuts against the limiting part. The limiting part is used to prevent the rubber protrusion 4153 from being stuck into the containing cavity 415, so that the positioning rod 4151 cannot move along the axis direction of the guide tube 4152 to approach or move away from the workpiece 1.

[0041] The above description is merely some of the preferred embodiments of the present disclosure and a description of the principles of the technology applied. It should be understood by those skilled in the art that the inventive scope involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combinations of the above technical features or equivalent features without departing from the above inventive concept. For example, the above features are replaced with each other to form technical solutions with similar functions disclosed in the embodiments of the present disclosure (but not limited to).

Claims

1. A fixture for assisting in boring a workpiece, characterized by, The workpiece forms a first arc surface and a second arc surface, and the clamp comprises a fixing base, a pressing piece, a first positioning piece and a second positioning piece; The first positioning piece and the second positioning piece are arranged on the fixing base; and the workpiece is arranged on the fixing base; The first positioning piece is used for abutting against the first arc surface; The second positioning piece forms a first clamping part and a second clamping part; the first clamping part and the second clamping part are used for abutting against the workpiece; and the first clamping part and the second clamping part form a clamping surface which abuts against the second arc surface; The pressing piece is used for fixing the workpiece on the fixing base in a direction perpendicular to the fixing base.

2. The clamp for assisting in boring the workpiece according to claim 1, wherein: The fixing base forms a guide groove; and the first positioning piece is used for approaching or moving away from the workpiece along the extension direction of the guide groove; The clamp further comprises a limiting piece; The limiting piece is used for fixing the first positioning piece in the guide groove.

3. The clamp for assisting in boring the workpiece according to claim 2, wherein: The first positioning piece comprises an abutting block, a clamping block and a fixing block; The abutting block forms an abutting part; the abutting part is used for abutting against the first arc surface; the abutting block forms a first clamping surface; and the first clamping surface is inclined to the fixing base by 60-80°; The fixing block forms a second clamping surface; and the second clamping surface is perpendicular to the fixing base; The clamping block forms a third clamping surface parallel to the first clamping surface and a fourth clamping surface parallel to the second clamping surface; and the clamping block is inserted between the abutting block and the fixing block in a direction perpendicular to the fixing base, so that the abutting part abuts against the workpiece; The clamping block and the fixing block both form positioning holes; the guide groove forms a threaded hole; and the limiting piece is fixed through the positioning holes and the threaded hole, so that the clamping block or the fixing block is fixed between the abutting block and the fixing block.

4. The clamp for assisting in boring the workpiece according to claim 3, wherein: The abutting block forms a first sliding groove; and the first sliding groove is parallel to the first clamping surface; The fixing block forms a second sliding groove; and the second sliding groove is parallel to the second clamping surface; The clamping block forms a convex part matched with the shapes of the first sliding groove and the second sliding groove, so that the clamping block is inserted between the abutting block and the fixing block in a direction perpendicular to the fixing base.

5. The clamp for assisting in boring the workpiece according to claim 3, wherein: The abutting block forms a containing cavity containing liquid; and the containing cavity is provided with positioning rods and guide tubes; The positioning rods and the guide tubes are both provided with three groups; the ends of the three groups of positioning rods away from the containing cavity form the abutting part; The guide tubes are arranged in the containing cavity in a direction parallel to the fixing base; the positioning rods are inserted into the guide tubes; the positioning rods and the guide tubes are in sliding connection; and the length of the guide tubes is greater than the length of the positioning rods. When the one set of positioning rods abut against the first arc-shaped surface, the other two sets of positioning rods can move along the axis direction of the guide tube to abut against the first arc-shaped surface.

6. The clamp for assisting boring of a workpiece according to claim 5, characterized in that: An end of the positioning rod inserted into the guide tube is provided with a rubber protrusion; The guide tube forms a limiting portion; when the rubber protrusion and the positioning rod move away from the workpiece along the axis direction of the guide tube, the rubber protrusion abuts against the limiting portion.

7. The clamp for assisting boring of a workpiece according to claim 4, characterized in that: The abutting block forms a U-shaped notch; two sides of the U-shaped notch are used to form the abutting portion.

8. The clamp for assisting boring of a workpiece according to claim 1, characterized in that: The fixing seat forms an extension hole matched with the boring position of the workpiece.

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