Dial fixing jig

Abstract

The utility model relates to the technical field of jigs, in particular to a dial fixing jig which comprises a three-jaw chuck, the three-jaw chuck comprises a chuck body and clamping jaws, a through hole is axially formed in the center of the chuck body, a plurality of sliding grooves are distributed along the circumference of the chuck body and communicated with the through hole, and the clamping jaws are correspondingly arranged in the sliding grooves in a sliding mode respectively. The supporting column is located below the chuck body, when the multiple clamping jaws are close to the through hole, the supporting column is clamped and fixed below the through hole, the outer wall face of the supporting column is sleeved with a dial, the dial is distributed in a spiral mode, and the ends of the dial are provided with a first limiting part and a second limiting part respectively to limit rotation of the dial. The first limiting part and the first limiting block are located at the ends of the dial respectively to limit rotation of the dial, and meanwhile, the second limiting block and the limiting column are located at the two axial ends of the dial respectively to prevent axial movement caused by vibration during laser etching, so that the stability of the dial is guaranteed, and then the accuracy of scales is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to jig technical field, especially a dial fixing jig. BACKGROUND

[0002] Insulin pens, as a great innovation of modern medical technology, provide unprecedented convenience for diabetes patients, greatly simplify the injection process of insulin, and improve the quality of life of patients. However, in the manufacturing process of insulin pens, the production and fixation of the dial are undoubtedly a crucial link.

[0003] As a direct indicator of insulin pen dose adjustment, the accuracy and stability of the dial are directly related to the accuracy of insulin injection. Therefore, every step in the production process of the dial needs to be strictly controlled to ensure the quality of the final product. In particular, when performing laser engraving, due to the high precision requirement of the laser engraving process, the fixation of the dial is particularly important, and laser engraving, as an advanced laser processing technology, can accurately engrave the required patterns or characters on the surface of the material. In the production of insulin pen dials, laser engraving technology is widely used in engraving dose scales. However, the heat and impact generated during laser engraving may cause slight displacement or deformation of the dial, thereby affecting the accuracy of the scale.

[0004] In addition, after completing the laser engraving of the dial, quick replacement of the dial is also crucial, affecting the processing efficiency.

[0005] Therefore, the present application develops a dial fixing jig to solve the problems existing in the prior art. UTILITY MODEL CONTENTS

[0006] The utility model aims at: provide a dial fixing jig to solve the problem that the dial occurs slight displacement when performing laser engraving in prior art.

[0007] The technical scheme of the utility model is: a dial fixing jig, comprising:

[0008] A three-jaw chuck comprises a chuck body and a jaw, a through hole is provided in the center axis of the chuck body, a plurality of sliding grooves are distributed along the circumference of the chuck body, the sliding grooves are arranged along the radial direction of the chuck body and communicate with the through hole, and a plurality of jaws are respectively arranged in the sliding grooves in sliding mode;

[0009] A support column is located below the chuck body, the support column is clamped and fixed below the through hole when the plurality of jaws approach the through hole, a dial is sleeved on the outer wall surface of the support column, the dial is distributed in a spiral manner, and first and second limiting portions are respectively arranged at the ends of the dial to limit the rotation of the dial.

[0010] Preferably, the second limiting part comprises a limiting column and a first limiting block, the limiting column is sleeved on the outer wall surface of the supporting column and is fixed through a first connecting piece, and the first limiting block is fixed on the limiting column and abuts against the end of the dial.

[0011] Preferably, the first limiting block abuts against the end of the dial away from the chuck body, and the first limiting part abuts against the end of the dial close to the chuck body.

[0012] Preferably, a second limiting block is arranged on the outer wall surface of the supporting column, and the second limiting block is located on the side close to the first limiting part and abuts against both ends of the dial in the axial direction respectively.

[0013] Preferably, a circular hole is arranged penetratingly along the radial direction of the supporting column, a second connecting piece is arranged in the circular hole, and the second connecting piece protrudes out of the circular hole and contacts the inner wall surface of the dial.

[0014] Preferably, a plurality of notches are uniformly arranged on one side of the clamping jaw close to the through hole.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] (1) the first limiting part and the first limiting block are respectively located on the end of the dial, the rotation of the dial on the supporting column during laser engraving is limited, meanwhile, the second limiting block and the limiting column are respectively located on both ends of the dial in the axial direction, axial movement caused by vibration during laser engraving is prevented, so that the stability of the dial is ensured, and the accuracy of the scale is ensured.

[0017] (2) the limiting column is fixed on the supporting column through the ball plunger, the action of disassembling and replacing the dial can be quickly completed, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in connection with the drawings and embodiments:

[0019] Figure 1 It is the structure schematic view of the dial fixing jig of the utility model;

[0020] Figure 2 It is the structure schematic view of the supporting column of the utility model;

[0021] Figure 3 It is the sectional view of the supporting column of the utility model;

[0022] Figure 4 It is the structure schematic view of the clamping jaw of the utility model.

[0023] Wherein: 1, three-jaw chuck; 11, chuck body; 12, jaw; 121, notch; 13, through hole; 14, sliding groove; 2, support column; 21, second limiting block; 22, round hole; 23, second connecting piece; 3, dial; 4, first limiting part; 5, second limiting part; 51, limiting column; 52, first limiting block; 6, first connecting piece. DETAILED DESCRIPTION

[0024] The content of the utility model will be further explained in detail below in combination with specific embodiments:

[0025] As shown in Figures 1-2 and Figure 4 A dial 3 fixing jig, comprising a three-jaw chuck 1 and a support column 2, wherein the three-jaw chuck 1 comprises a chuck body 11 and a jaw 12, the center of the chuck body 11 is provided with a through hole 13, the through hole 13 is arranged along the axis of the chuck body 11, a plurality of sliding grooves 14 are distributed along the circumference of the chuck body 11, the sliding grooves 14 are arranged along the radial direction of the chuck body 11 and are in communication with the through hole 13, the jaw 12 is slidingly arranged in the corresponding sliding groove 14, when the plurality of jaws 12 are close to the through hole 13, they will be clamped on the outer wall surface of the support column 2, fixing the support column 2, the side of the jaw 12 close to the through hole 13 is uniformly arranged with a plurality of notches 121, the contact area between the jaw 12 and the outer wall surface of the support column 2 is increased through the notches 121, the friction between them is improved, the sliding or loosening of the support column 2 when subjected to external force is prevented, and the stability of clamping is further enhanced, and the outer wall surface of the support column 2 is sleeved with the dial 3, wherein the dial 3 is spirally distributed, the two ends of the dial 3 are respectively provided with a first limiting part 4 and a second limiting part 5, the first limiting part 4 and the second limiting part 5 prevent the dial 3 from excessively displacing or falling off on the support column 2, enhance the stability of the whole structure, at the same time, the first limiting part 4 and the second limiting part 5 also play a role in safety protection, avoiding the safety hazard caused by the movement of the dial 3, and the first limiting part 4 and the second limiting part 5 not only can limit the movement range of the dial 3, but also can be used as positioning marks.

[0026] In this embodiment, as shown in Figures 2-3 The second limiting part 5 comprises a limiting column 51 and a first limiting block 52, the limiting column 51 is sleeved on the outer wall surface of the support column 2 and is fixed through the first connecting piece 6, the first limiting block 52 is fixedly arranged on the limiting column 51 and abuts against the end of the dial 3, the first limiting block 52 and the first limiting part 4 are respectively located at the lower end and the upper end of the dial 3, through the interaction of the first limiting block 52 and the first limiting part 4, not only the rotation of the dial 3 can be prevented, but also the vibration caused by laser engraving can be effectively reduced, at this time the limiting column 51 is located at the lower end of the support column 2, the upper bottom surface of the limiting column 51 is in contact with the dial 3, the dial 3 is supported, and the dial 3 is prevented from falling off.

[0027] Further, the outer wall surface of the support column 2 is provided with a second limiting block 21, the second limiting block 21 is close to the first limiting part 4, and the limiting column 51 is located at both ends of the scale disc 3 respectively, and the limiting column 51 and the second limiting block 21 are in abutment with the scale disc 3, and the abutment of the second limiting block 21 and the scale disc 3 provides additional support and limiting for the scale disc 3, and through double limiting, the scale disc 3 can be more effectively prevented from shifting or shaking during laser engraving, thereby enhancing the stability of the entire structure.

[0028] Further, the limiting column 51 is detachably fixed on the support column 2 through the first connecting piece 6, and the support column 2 penetrates radially and is provided with a circular hole 22, the circular hole 22 is provided with a second connecting piece 23, the second connecting piece 23 protrudes out of the circular hole 22 and is in contact with the inner wall surface of the scale disc 3.

[0029] Among them, the first connecting piece 6 and the second connecting piece 23 are both ball head plungers, the support column 2 penetrates radially and is provided with a circular hole 22, the circular hole 22 is provided with a second connecting piece 23, the second connecting piece 23 protrudes out of the circular hole 22 and is in contact with the inner wall surface of the scale disc 3, the ball head part of the ball head plunger can adjust the contact position and angle with the inner wall surface of the scale disc 3 by rotating and moving, the ball head part of the ball head plunger has a certain elasticity and can absorb and disperse vibration and impact from the outside, the limiting column 51 connected by the first connecting piece 6 can be quickly disassembled and the scale disc 3 can be replaced, so that the replacement is more convenient and the production efficiency is improved.

[0030] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and it cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A dial fixing jig characterized by comprising: Include: Three claw chuck (1), the three claw chuck (1) includes chuck body (11) and jaw (12), the central axis of the chuck body (11) is provided with through hole (13), a plurality of sliding slot (14) is distributed along the circumference of the chuck body (11), the sliding slot (14) is arranged along the radial direction of the chuck body (11) and is communicated with the through hole (13), a plurality of the jaw (12) is respectively arranged in the sliding slot (14) slidingly; Support column (2), located below the chuck body (11), when a plurality of jaw (12) is close to the through hole (13), the support column (2) is clamped and fixed below the through hole (13), the outer wall surface of the support column (2) is sleeved with a dial (3), the dial (3) is distributed in a spiral manner, and the end of the dial (3) is respectively provided with a first limiting part (4) and a second limiting part (5), which limits the rotation of the dial (3).

2. The dial fixture of claim 1, wherein: The second limiting part (5) includes a limiting column (51) and a first limiting block (52), the limiting column (51) is sleeved on the outer wall surface of the support column (2) and is fixed by a first connecting piece (6), the first limiting block (52) is fixed on the limiting column (51) and abuts against the end of the dial (3).

3. The dial fixture of claim 2, wherein: The first limiting block (52) abuts against the end of the dial (3) away from the chuck body (11), and the first limiting part (4) abuts against the end of the dial (3) close to the chuck body (11).

4. The dial fixture of claim 2, wherein: The outer wall surface of the support column (2) is provided with a second limiting block (21), the second limiting block (21) is located on the side close to the first limiting part (4) and abuts against the two ends of the dial (3) in the axial direction respectively.

5. The dial fixture of claim 1, wherein: A circular hole (22) is provided in the radial direction of the support column (2), the second connecting piece (23) is arranged in the circular hole (22), and the second connecting piece (23) protrudes from the circular hole (22) and contacts the inner wall surface of the dial (3).

6. The dial fixture of claim 1, wherein: A plurality of notches (121) are uniformly arranged on one side of the jaw (12) close to the through hole (13).

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