Workpiece positioning tool and fixing device

Abstract

The utility model discloses a workpiece positioning tool and a fixing device, and relates to the technical field of machine tool machining, the workpiece positioning tool comprises a core shaft, the periphery of the core shaft is provided with a positioning surface, the positioning surface is used for being attached to a workpiece to be machined, one end of the core shaft is provided with a first abutting part, and the other end of the core shaft is provided with a second abutting part; the first abutting part is used for abutting against one end of a workpiece to be machined; the positioning piece is connected with the peripheral surface of the mandrel, and the positioning piece is used for limiting a to-be-machined workpiece on the positioning surface so as to position the to-be-machined workpiece; the abutting part is connected with the mandrel, and the abutting part is used for abutting against the other end of a workpiece to be machined so that the workpiece to be machined can be clamped between the first abutting part and the abutting part; the numerical control milling machine is convenient for numerical control milling of one surface, deviating from the positioning surface, of the to-be-machined workpiece, machining positions do not need to be repeatedly adjusted, machining efficiency can be improved, and deformation of the to-be-machined workpiece can be effectively prevented during machining.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool processing, in particular to a workpiece positioning fixture and a fixing device. Background Art

[0002] When the PEEK block is processed by a CNC lathe and milling machine, it is difficult to position the PEEK block on the machine tool during processing because the PEEK block has an arc-shaped shape. The processing position needs to be adjusted repeatedly during CNC milling, which makes the PEEK block processing efficiency low and easy to deform during processing. Utility Model Content

[0003] The main purpose of the utility model is to provide a workpiece positioning fixture and a fixing device, aiming to improve the processing efficiency of the workpiece to be processed and to prevent the workpiece to be processed from being deformed during processing.

[0004] In order to achieve the above-mentioned purpose, the workpiece positioning tool proposed by the utility model comprises:

[0005] A mandrel, wherein the outer periphery of the mandrel is provided with a positioning surface, the positioning surface is used to fit with the workpiece to be processed, and one end of the mandrel is provided with a first abutment portion, the first abutment portion is used to abut one end of the workpiece to be processed;

[0006] a positioning member connected to the outer peripheral surface of the mandrel, the positioning member being used to limit the workpiece to be processed on the positioning surface to position the workpiece to be processed; and

[0007] An abutment member is connected to the core shaft and is used to abut against the other end of the workpiece to be processed so that the workpiece to be processed is clamped between the first abutment portion and the abutment member.

[0008] In one embodiment, the positioning surface is provided with no less than two connecting holes, and the positioning member has a first portion plugged into and matched with the connecting hole, and a second portion received in the positioning hole of the workpiece to be processed.

[0009] In one embodiment, the workpiece positioning tool also includes a fastener, a fastening hole is opened at the end of the core shaft that is in contact with the abutment, the abutment is penetrated by a through hole connected to the fastening hole, and the fastener is inserted into the through hole and inserted into the fastening hole to fasten the abutment to one end of the core shaft.

[0010] In one embodiment, the abutment is connected to the mandrel, and the outer periphery of the abutment protrudes from the positioning surface to form a second abutment portion, and the second abutment portion is used to abut an end of the workpiece to be processed away from the first abutment portion.

[0011] In one embodiment, when the first abutting portion and the second abutting portion limit the workpiece to be processed, a side of the workpiece to be processed away from the positioning surface protrudes from the second abutting portion.

[0012] In one embodiment, a portion to be clamped is provided at one end of the core shaft away from the abutment member, and the portion to be clamped is used to connect to a fixing device.

[0013] In one embodiment, a plurality of the positioning surfaces are provided, and the plurality of the positioning surfaces are arranged around the outer circumference of the core shaft, and the abutment portion is provided on a side of each of the positioning surfaces away from the abutment member.

[0014] In one embodiment, a partition groove is provided between adjacent positioning surfaces.

[0015] The utility model also provides a fixing device, comprising a clamping member and the workpiece positioning tool as described above.

[0016] In one embodiment, the clamping member is provided on a machine tool for processing a workpiece to be processed, and the clamping member is provided with a clamping portion, and the clamping portion is used to clamp the workpiece positioning tool so that the workpiece to be processed is fixed.

[0017] The technical solution of the utility model is to set a positioning surface on the outer periphery of the core shaft so that the positioning surface can fit the workpiece to be processed, and set a positioning piece connected to the outer periphery of the core shaft so that the workpiece to be processed that fits on the positioning surface can be positioned on the positioning surface, and at the same time set a first abutment portion at one end of the core shaft. When the workpiece to be processed is positioned on the positioning surface, one end of the workpiece to be processed can abut against the first abutment portion, and set an abutment portion connected to the other end of the core shaft to cooperate and abut with the other end of the workpiece to be processed, so that the workpiece to be processed is finally limited on the workpiece positioning tooling, thereby facilitating CNC milling of the side of the workpiece to be processed that is away from the positioning surface, without repeatedly adjusting the processing position, which can improve the processing efficiency and effectively prevent the workpiece to be processed from deformation during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A structural schematic diagram of an embodiment of a workpiece positioning tool provided by the utility model;

[0020] Figure 2 An exploded view of the workpiece positioning tool provided by the utility model;

[0021] Figure 3 A schematic diagram of the state of the workpiece positioning tool provided by the utility model assembling the workpiece to be processed;

[0022] Figure 4 The present invention is a schematic structural diagram of the central shaft of the workpiece positioning tool provided by the present invention.

[0023] Description of Figure Numbers:

[0024] 100. Workpiece positioning tool; 10. Mandrel; 11. Positioning surface; 12. First abutting portion; 13. Portion to be clamped; 14. Partition groove; 15. Fastening hole; 16. Connecting hole; 20. Abutting member; 30. Fastener; 40. Positioning member; 200. Workpiece to be processed; 201. Positioning hole.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] In the present invention, the workpiece 200 to be processed can be a PEEK block, the PEEK is arc-shaped, and the outer arc surface of the PEEK block is processed by a CNC milling machine. The PEEK block has a positioning hole 201 that is set through it.

[0030] When the PEEK block is processed by a CNC lathe and milling machine, it is difficult to position the PEEK block on the machine tool during processing because the PEEK block has an arc-shaped shape. The processing position needs to be adjusted repeatedly during CNC milling, which makes the PEEK block processing efficiency low and easy to deform during processing.

[0031] The utility model provides a workpiece positioning tool 100.

[0032] See also Figures 1 to 4 In one embodiment of the utility model, the workpiece positioning tool 100 includes a core shaft 10, a positioning member 40, and an abutment member 20: a positioning surface 11 is provided on the outer periphery of the core shaft 10, and the positioning surface 11 is used to fit with the workpiece 200 to be processed; a first abutment portion 12 is provided at one end of the core shaft 10, and the first abutment portion 12 is used to abut one end of the workpiece 200 to be processed; the positioning member 40 is connected to the outer periphery of the core shaft 10, and the positioning member 40 is used to limit the workpiece 200 to be processed on the positioning surface 11 to position the workpiece 200 to be processed; the abutment member 20 is connected to the core shaft 10, and the abutment member 20 is used to abut the other end of the workpiece 200 to be processed, so that the workpiece 200 to be processed is clamped between the first abutment portion 12 and the abutment member 20.

[0033] The technical solution of the utility model is to set a positioning surface 11 on the outer periphery of the core shaft 10 so that the positioning surface 11 can fit the workpiece 200 to be processed, and set a positioning member 40 connected to the outer peripheral surface of the core shaft 10, so that the workpiece 200 to be processed that is fitted on the positioning surface 11 can be positioned on the positioning surface 11, and at the same time, a first abutment portion 12 is set at one end of the core shaft 10. When the workpiece 200 to be processed is positioned on the positioning surface 11, one end of the workpiece 200 to be processed can abut against the first abutment portion 12, and an abutment member 20 is set to be connected to the other end of the core shaft 10, and abuts with the other end of the workpiece 200 to be processed, so that the workpiece 200 to be processed is finally limited on the workpiece positioning tool 100, thereby facilitating CNC milling of the side of the workpiece 200 to be processed that is away from the positioning surface 11, without repeatedly adjusting the processing position, thereby improving the processing efficiency and effectively preventing the workpiece 200 to be processed from deformation during processing.

[0034] See also Figure 3 , Figure 4 As shown, in the embodiment of the present invention, the positioning surface 11 is provided with at least two connecting holes 16, and the positioning member 40 has a first portion plugged into the connecting hole 16 and a second portion received in the positioning hole 201 of the workpiece 200 to be processed.

[0035] In the present invention, a workpiece 200 to be processed is provided with a plurality of positioning holes 201. To this end, a plurality of connecting holes 16 are provided on the positioning surface 11, and the plurality of connecting holes 16 are arranged one-to-one with the plurality of positioning holes 201. The positioning member 40 may adopt a structure such as a screw, a pin or a staple, and the positioning member 40 has a first portion connected to the connecting hole 16, and a second portion accommodated in the positioning hole 201. When the positioning member 40 is connected to the connecting hole 16, the second portion of the positioning member 40 is accommodated in the positioning hole 201, and the second portion of the positioning member 40 can fit with the inner wall surface of the positioning hole 201 when accommodated in the positioning hole 201, so that when the workpiece 200 to be processed fits the positioning surface 11, the workpiece 200 to be processed can be prevented from sliding along the positioning surface 11.

[0036] Alternatively, the second portion of the positioning member 40 can be set to have an interference fit with the inner wall of the positioning hole 201. When the positioning member 40 is connected to the positioning surface 11, the positioning member 40 can limit the workpiece 200 to be processed away from the core shaft 10 in the circumferential direction of the core shaft 10, thereby further improving the fit between the positioning member 40 and the positioning surface 11 and the limiting effect on the workpiece 200 to be processed.

[0037] See also Figure 2 , Figure 3 As shown, in an embodiment of the utility model, the workpiece positioning tool 100 also includes a fastener 30, a fastening hole 15 is opened at one end of the core shaft 10 that is in contact with the abutment 20, and the abutment 20 is penetrated by a through hole connected to the fastening hole 15, and the fastener 30 is penetrated by the through hole and inserted into the fastening hole 15, so as to fasten the abutment 20 to one end of the core shaft 10.

[0038] Specifically, the fastener 30 can be a structure such as a screw, a bolt, a pin, etc., and the abutment 20 can be a pressure plate. When the fastener 30 is inserted into the through hole on the abutment 20 and connected to the fastening hole 15, the end of the fastener 30 away from the fastening hole 15 abuts against the fastener 30 and pushes the abutment 20 toward the core shaft 10, so that the abutment 20 is connected to the end of the core shaft 10.

[0039] In the above embodiment, the number of the fastening holes 15 can be one or more. When the number of the fastening holes 15 is more than one, a plurality of through holes that match one to one with the abutment 20 are provided, and a plurality of fasteners 30 that can be connected to the fastening holes 15 are provided.

[0040] Continue reading Figure 2 , Figure 3 In an embodiment of the present invention, when the abutment 20 is connected to the core shaft 10 , the outer peripheral protruding positioning surface 11 of the abutment 20 forms a second abutment portion, which is used to abut against an end of the workpiece 200 to be processed away from the first abutment portion 12 .

[0041] In the above-mentioned embodiment, when the abutment member 20 adopts a pressure plate, when the pressure plate is connected to the core shaft 10, the outer ring of the pressure plate can protrude from the positioning surface 11 located on the outer periphery of the core shaft 10. When the pressure plate is connected to the core shaft 10, the protruding portion abuts against the end of the workpiece 200 to be processed, thereby serving as a second abutment portion. After the workpiece 200 to be processed is positioned on the positioning surface 11, it is clamped between the first abutment portion 12 and the second abutment portion, thereby achieving fixation on the core shaft 10.

[0042] See also Figure 3 As shown, in the embodiment of the present utility model, when the first abutting portion 12 and the second abutting portion limit the workpiece 200 to be processed, the side of the workpiece 200 to be processed away from the positioning surface 11 protrudes from the second abutting portion.

[0043] In the utility model, since the side of the workpiece 200 to be processed that is away from the positioning surface 11 is subjected to CNC milling during processing, by making the side of the workpiece 200 to be processed that is away from the positioning surface 11 protrude from the second abutment portion, when processing the side of the workpiece 200 to be processed that is away from the positioning surface 11, it is convenient for the processing equipment to feed from this position to avoid feed interference.

[0044] See also Figure 4 As shown, in the embodiment of the present utility model, a to-be-clamped portion 13 is provided at one end of the core shaft 10 away from the abutment member 20 , and the to-be-clamped portion 13 is used to connect with a fixing device.

[0045] Specifically, the clamping portion 13 can be provided at the end of the mandrel 10 away from the abutment 20, that is, the end of the mandrel 10 away from the workpiece 200 to be processed, so that the mandrel 10 can be clamped by the clamping device used in the machine tool. Therefore, when the mandrel 10, the abutment 20, the fastener 30 and the positioning member 40 cooperate to position the workpiece 200 to be processed and form a whole, the whole can be clamped and fixed, thereby achieving the clamping of the workpiece 200 to be processed on the machine tool.

[0046] See also Figures 1 to 4 As shown, in the embodiment of the present invention, a plurality of positioning surfaces 11 are provided, and the plurality of positioning surfaces 11 are arranged around the outer circumference of the core shaft 10 , and an abutment portion is provided on a side of each positioning surface 11 away from the abutment member 20 .

[0047] Specifically, the number of the positioning surfaces 11 can be four. In the above embodiment, by providing a plurality of positioning surfaces 11 on the outer periphery of the mandrel 10 and cooperating with abutment portions respectively provided corresponding to the plurality of positioning surfaces 11, the workpiece positioning fixture 100 can position and assemble a plurality of workpieces 200 to be processed at one time, and when the workpieces 200 to be processed are subsequently processed, a plurality of required workpieces can be processed at one time, thereby improving production and processing efficiency, increasing processing output, and realizing mass production of required workpieces.

[0048] Continue reading Figures 1 to 4 In the embodiment of the utility model, a partition groove 14 is provided between adjacent positioning surfaces 11 .

[0049] Specifically, adjacent positioning surfaces 11 are not connected and are separated by partition grooves 14, so that when the positioning surfaces 11 are used to assemble the workpieces 200 to be processed, the adjacent workpieces 200 to be processed are isolated from each other, so that when the workpieces 200 to be processed are subsequently processed, the adjacent workpieces 200 to be processed can be avoided from being affected.

[0050] The utility model also proposes a fixing device, which includes a clamping member and a workpiece positioning tool 100. The specific structure of the workpiece positioning tool 100 refers to the above embodiment. Since the fixing device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0051] In an embodiment of the utility model, the clamping member is arranged on a machine tool for processing a workpiece to be processed, and the clamping member is provided with a clamping portion, and the clamping portion is used to clamp a workpiece positioning tool to fix the workpiece to be processed.

[0052] Specifically, the clamping member is a fixture installed on the machine tool, which can be a three-jaw chuck structure. The fixture has a clamping portion for clamping the workpiece. The clamped portion 13 of the workpiece positioning tool 100 equipped with the workpiece 200 to be processed is clamped by the clamping portion to be fixed on the machine tool, so that the workpiece 200 to be processed can be fixed on the machine tool and can be processed.

[0053] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A workpiece positioning tool, characterized in that: include: A mandrel, wherein the outer periphery of the mandrel is provided with a positioning surface, the positioning surface is used to fit with the workpiece to be processed, and one end of the mandrel is provided with a first abutment portion, the first abutment portion is used to abut one end of the workpiece to be processed; a positioning member connected to the outer peripheral surface of the mandrel, the positioning member being used to limit the workpiece to be processed on the positioning surface to position the workpiece to be processed; and An abutment member is connected to the core shaft and is used to abut against the other end of the workpiece to be processed so that the workpiece to be processed is clamped between the first abutment portion and the abutment member.

2. The workpiece positioning tool as claimed in claim 1, characterized in that: The positioning surface is provided with no less than two connecting holes, and the positioning member has a first portion plugged into and matched with the connecting hole, and a second portion accommodated in the positioning hole of the workpiece to be processed.

3. The workpiece positioning tool as claimed in claim 1, characterized in that: The workpiece positioning tool also includes a fastener, a fastening hole is opened at one end of the core shaft that is in contact with the abutment, the abutment is penetrated by a through hole connected to the fastening hole, and the fastener is inserted into the through hole and inserted into the fastening hole to fasten the abutment to one end of the core shaft.

4. The workpiece positioning tool as claimed in claim 3, characterized in that: When the abutment piece is connected to the mandrel, the outer periphery of the abutment piece protrudes from the positioning surface to form a second abutment portion, and the second abutment portion is used to abut against an end of the workpiece to be processed away from the first abutment portion.

5. The workpiece positioning tool as claimed in claim 4, characterized in that: When the first abutting portion and the second abutting portion limit the workpiece to be processed, a side of the workpiece to be processed away from the positioning surface protrudes from the second abutting portion.

6. The workpiece positioning tool as claimed in claim 1, characterized in that: A to-be-clamped portion is provided at one end of the core shaft away from the abutment member, and the to-be-clamped portion is used for connecting a fixing device.

7. The workpiece positioning tool according to any one of claims 1 to 6, characterized in that: There are a plurality of positioning surfaces, and the plurality of positioning surfaces are arranged around the outer circumference of the core shaft. The abutment portion is provided on a side of each positioning surface away from the abutment member.

8. The workpiece positioning tool as claimed in claim 7, characterized in that: Partition grooves are provided between adjacent positioning surfaces.

9. A fixing device, characterized in that: It comprises a clamping member and a workpiece positioning tool as claimed in any one of claims 1 to 8.

10. The fixing device according to claim 9, characterized in that The clamping member is arranged on a machine tool for processing a workpiece to be processed. The clamping member is provided with a clamping portion, and the clamping portion is used to clamp the workpiece positioning tool so that the workpiece to be processed is fixed.

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