Positioning device for needle

Abstract

The utility model provides a positioning device for a needle, and belongs to the technical field of needle processing, the positioning device is provided with a clamping mechanism, the clamping mechanism is provided with a clamping seat, a clamping plate and a pressing plate, the clamping plate is movably arranged above the clamping seat, and the pressing plate is movably arranged above the clamping plate; a row of needle grooves are formed between the clamping seat and the clamping plate and are the same in shape, and the widths of the adjacent needle grooves are the same; the clamping mechanism is further provided with a pressing air cylinder, the pressing plate is in linkage with a piston of the pressing air cylinder, the pressing air cylinder drives the pressing plate to move downwards, the clamping plate is pressed on the clamping base, the needle between the clamping base and the clamping plate is further clamped, the needle is prevented from sliding in the needle groove, the position of the needle is accurately controlled, and it is guaranteed that the position of hole cutting of the needle is accurate. The row of needle grooves are arranged and are the same in shape, the widths between the adjacent needle grooves are the same, the laser hole cutting machine can sequentially cut holes in needles in the row of needle grooves, the hole cutting efficiency is improved, it is guaranteed that the positions of needle holes in the same batch are the same, and the consistency of the needles is good.

Description

Technical Field

[0001] The present application belongs to the technical field of needle processing, and more specifically, relates to a needle positioning device. Background Art

[0002] Steel needle is the name of a needle. It is a medical needle made of stainless steel. It is generally made of chromium-nickel synthetic stainless steel. It has the advantages of strong hardness, tough texture, elasticity and not easy to rust. It is commonly used in clinical practice.

[0003] The pinhole is a hole on the needle head, which is used to increase the throughput. Since the needle is made of materials with high hardness and high melting point, and the laser has the characteristics of high energy and high focusing, laser hole cutting machines are widely used in pinhole processing technology. When the laser hole cutting machine cuts a hole in the needle, the needle needs to be fixed first to ensure the accurate position of the hole.

[0004] The existing needle positioning device has the following disadvantages: the needles are processed individually, and after each processing, the unprocessed needle needs to be reinserted and the position of the needle needs to be calibrated. Replacement takes a lot of time, the processing efficiency is low, it is easy to make mistakes, and the consistency of the needle hole position cannot be guaranteed. Summary of the invention

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a needle positioning device. The technical solution adopted in this application is:

[0006] A needle positioning device is provided with a clamping mechanism, which is provided with a clamping seat, a clamping plate and a pressure plate. The clamping plate is movably arranged above the clamping seat, and the pressure plate is movably arranged above the clamping plate. A needle groove is provided between the clamping seat and the clamping plate. The needle grooves are arranged in a row and have the same shape, and the widths between adjacent needle grooves are the same. The clamping mechanism is also provided with a pressing cylinder, and the pressure plate is linked to the piston of the pressing cylinder.

[0007] Preferably, the pressure plate is provided with an arc portion and a pressing portion, the pressing portion is provided at the front end of the arc portion, and the arc portion bends downward from back to front; the rear end of the arc portion is fixedly connected to the piston of the pressing cylinder.

[0008] Preferably, the clamping mechanism is further provided with a clamping cylinder, and the clamping plate is linked to the piston of the clamping cylinder.

[0009] Preferably, the clamping cylinder is provided with a first clamping cylinder and a second clamping cylinder, the first clamping cylinder and the second clamping cylinder are symmetrically arranged at two ends of the clamping plate, and the piston of the first clamping cylinder is linked with the piston of the second clamping cylinder.

[0010] Preferably, a support seat, a slide seat and a pushing mechanism are further provided. The slide seat is movably arranged on the support seat, and the pushing mechanism is used to push the slide seat to move; the clamping seat is linked with the slide seat.

[0011] Preferably, the pushing mechanism is provided with a pushing rod and a pushing sleeve, the pushing rod is rotatably arranged in the pushing sleeve, and mutually matching pushing threads are provided between the pushing rod and the pushing sleeve; the front end of the pushing rod abuts against the sliding seat.

[0012] Preferably, an orientation mechanism is provided between the support seat and the slide seat, the orientation mechanism is provided with an orientation hole and an orientation pin, the orientation hole is in the shape of an oblong hole, and the orientation pin is slidably arranged in the orientation hole; the orientation hole is arranged on the slide seat, and the orientation pin is arranged on the support seat.

[0013] Preferably, the orientation mechanism is provided with a plurality of groups of orientation holes and orientation pins.

[0014] Preferably, the orientation mechanism is provided with 4 groups of orientation holes and orientation pins.

[0015] The advantages of the utility model are as follows:

[0016] Place the sewing needle in the needle groove, press the cylinder to work, the pressing plate and the piston of the pressing cylinder are linked to drive the pressing plate to move downward, and the clamping plate is pressed on the clamping seat. The needle between the clamping seat and the clamping plate is further clamped to prevent the needle from sliding in the needle groove, accurately control the position of the needle, and ensure the accurate position of the needle cutting hole;

[0017] There is a row of needle grooves with the same shape, and the widths between adjacent needle grooves are the same. The laser hole cutting machine can cut holes for the needles in a row of needle grooves in turn, thereby improving the hole cutting efficiency and ensuring that the positions of the needle holes in the same batch are the same and the consistency of the needles is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 present application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative labor.

[0019] Figure 1 is a schematic diagram of a needle positioning device;

[0020] Figure 2 is a schematic diagram of a pressing cylinder and a pressing plate;

[0021] Figure 3 is a schematic diagram of the clamping seat;

[0022] Figure 4 is a schematic diagram of the splint.

[0023] Explanation of symbols in the figure:

[0024] 1 is a clamping mechanism, 11 is a clamping seat, 12 is a clamping plate, 13 is a pressing plate, 131 is an arc portion, 132 is a pressing portion, 14 is a needle groove, 15 is a pressing cylinder, 16 is a clamping cylinder, 161 is a first clamping cylinder, and 162 is a second clamping cylinder;

[0025] 2 is a support seat;

[0026] 3 is a slide seat;

[0027] 4 is a pushing mechanism, 41 is a pushing rod, and 42 is a pushing sleeve;

[0028] 5 is a directional mechanism, 51 is a directional hole, and 52 is a directional pin. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] The needle positioning device provided in the embodiment of the present application is now described.

[0031] like Figures 1 to 4 As shown, a needle positioning device is used to fix the needle, and is provided with a clamping mechanism 1. The clamping mechanism 1 is provided with a clamping seat 11, a clamping plate 12 and a pressing plate 13. The clamping plate 12 is movably arranged above the clamping seat 11, and the pressing plate 13 is movably arranged above the clamping plate 12; a needle groove 14 is provided between the clamping seat 11 and the clamping plate 12, and the needle grooves 14 are arranged in a row and have the same shape, and the widths between adjacent needle grooves 14 are the same; the clamping mechanism 1 is also provided with a pressing cylinder 15, and the pressing plate 13 is linked to the piston of the pressing cylinder 15.

[0032] Place the sewing needle in the needle groove 14, press the cylinder 15 to work, the pressing plate 13 and the piston of the pressing cylinder 15 are linked to drive the pressing plate 13 to move downward, and the clamping plate 12 is pressed against the clamping seat 11. The needle between the clamping seat 11 and the clamping plate 12 is further clamped to prevent the needle from sliding in the needle groove 14, and the position of the needle is accurately controlled to ensure the accuracy of the needle cutting hole.

[0033] The needle grooves 14 are arranged in a row and have the same shape. The widths between adjacent needle grooves 14 are the same. The laser hole cutting machine can cut holes for the needles in a row of needle grooves 14 in turn, thereby improving the hole cutting efficiency and ensuring that the positions of the needle holes in the same batch are the same and the needles have good consistency.

[0034] The pressing plate 13 is provided with an arc portion 131 and a pressing portion 132 . The pressing portion 132 is provided at the front end of the arc portion 131 . The arc portion 131 bends downward from the back to the front. The rear end of the arc portion 131 is fixedly connected to the piston of the pressing cylinder 15 .

[0035] The clamping mechanism 1 is also provided with a clamping cylinder 16, and the clamping plate 12 is linked with the piston of the clamping cylinder 16; when the clamping cylinder 16 works, it drives the clamping plate 12 to move downward to abut against the clamping seat 11, clamping the needle in the needle groove 14 and accurately defining the position of the needle.

[0036] The clamping cylinder 16 includes a first clamping cylinder 161 and a second clamping cylinder 162 . The first clamping cylinder 161 and the second clamping cylinder 162 are symmetrically arranged at two ends of the clamping plate 12 . The piston of the first clamping cylinder 161 and the piston of the second clamping cylinder 162 are linked.

[0037] The first clamping cylinder 161 and the second clamping cylinder 16 jointly drive the clamping plate 12 to move, and the clamping plate 12 can stably move upward and downward. The clamping plate 12 is firmly pressed on the clamping seat 11 to ensure that the position of the needle in the needle groove 14 is stable.

[0038] A support seat 2, a slide seat 3 and a pushing mechanism 4 are also provided. The slide seat 3 is movably arranged on the support seat 2, and the pushing mechanism 4 is used to push the slide seat 3 to move; the clamping seat 11 is linked with the slide seat 3, and the pushing mechanism 4 pushes the slide seat 3 to move, and the slide seat 3 moves together, so that the position of the needle in the needle groove 14 can be adjusted to ensure the accuracy of the cutting hole position.

[0039] The pushing mechanism 4 is provided with a pushing rod 41 and a pushing sleeve 42. The pushing rod 41 is rotatably arranged in the pushing sleeve 42. The pushing rod 41 and the pushing sleeve 42 are provided with mutually matching pushing threads. The front end of the pushing rod 41 abuts against the slide 3. In this embodiment, the pushing mechanism 4 uses a micrometer to accurately control the position of the slide 3, further ensuring the accuracy of the position of the cutting hole.

[0040] The push rod 41 rotates in the push sleeve 42, and the push threads cooperate with each other, so that the push rod 41 moves forward and backward, pushing the slide seat 3 to move smoothly, and the operation is convenient.

[0041] An orientation mechanism 5 is provided between the support seat 2 and the slide seat 3. The orientation mechanism 5 is provided with an orientation hole 51 and an orientation pin 52. The orientation hole 51 is in the shape of an oblong hole. The orientation pin 52 is slidably arranged in the orientation hole 51. The orientation hole 51 is arranged on the slide seat 3, and the orientation pin 52 is arranged on the support seat 2.

[0042] The orientation mechanism 5 is provided with 4 groups of orientation holes 51 and orientation pins 52. The orientation mechanism is provided with 2 groups, 3 groups or other numbers of orientation holes 51 and orientation pins 52; the number of orientation holes 51 and orientation pins 52 is adjusted according to the length of the clamping seat 11, and the longer the length of the clamping seat 11, the more the number of orientation holes 51 and orientation pins 52.

[0043] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A needle positioning device, provided with a clamping mechanism, characterized in that: The clamping mechanism is provided with a clamping seat, a clamping plate and a pressure plate, wherein the clamping plate is movably arranged above the clamping seat, and the pressure plate is movably arranged above the clamping plate; a needle groove is provided between the clamping seat and the clamping plate, and the needle grooves are arranged in a row and have the same shape, and the widths between adjacent needle grooves are the same; the clamping mechanism is also provided with a pressing cylinder, and the pressure plate is linked to the piston of the pressing cylinder.

2. The needle positioning device according to claim 1, characterized in that: The pressing plate is provided with an arc portion and a pressing portion, wherein the pressing portion is arranged at the front end of the arc portion, and the arc portion bends downward from back to front; and the rear end of the arc portion is fixedly connected to the piston of the pressing cylinder.

3. The needle positioning device according to claim 1 or 2, characterized in that: The clamping mechanism is also provided with a clamping cylinder, and the clamping plate is linked with the piston of the clamping cylinder.

4. The needle positioning device according to claim 3, characterized in that: The clamping cylinder is provided with a first clamping cylinder and a second clamping cylinder. The first clamping cylinder and the second clamping cylinder are symmetrically arranged at two ends of the clamping plate. The piston of the first clamping cylinder and the piston of the second clamping cylinder are linked.

5. The needle positioning device according to claim 1 or 2, characterized in that: A support seat, a slide seat and a pushing mechanism are also provided. The slide seat is movably arranged on the support seat, and the pushing mechanism is used to push the slide seat to move; the clamping seat is linked with the slide seat.

6. The needle positioning device according to claim 5, characterized in that: The pushing mechanism is provided with a pushing rod and a pushing sleeve. The pushing rod is rotatably arranged in the pushing sleeve. The pushing rod and the pushing sleeve are provided with mutually matching pushing threads. The front end of the pushing rod abuts against the sliding seat.

7. The needle positioning device according to claim 6, characterized in that: An orientation mechanism is provided between the support seat and the slide seat, and the orientation mechanism is provided with an orientation hole and an orientation pin, the orientation hole is in the shape of an oblong hole, and the orientation pin is slidably arranged in the orientation hole; the orientation hole is arranged on the slide seat, and the orientation pin is arranged on the support seat.

8. The needle positioning device according to claim 7, characterized in that: The orientation mechanism is provided with a plurality of groups of orientation holes and orientation pins.

9. The needle positioning device according to claim 8, characterized in that: The orientation mechanism is provided with 4 groups of orientation holes and orientation pins.

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