Clamping assembly for medical metal pipe fitting

Abstract

The utility model discloses a medical metal pipe fitting clamping assembly which comprises a base plate, a fixed support installed at one end of the base plate, a movable support arranged at the other end of the base plate and at least two supporting blocks arranged between the fixed support and the movable support at intervals. The metal pipe fitting comprises a body and a convex lug part extending outwards from part of the circumferential area of the end face of one end of the body, and a V-shaped supporting groove allowing the body of the metal pipe fitting to be embedded in is formed in the upper surface of the supporting block. The main body part of the positioning block is installed on the body part of a pneumatic chuck and located between the first movable part and the second movable part of the pneumatic chuck. According to the utility model, while the two ends of the metal pipe fitting are clamped and positioned, the position of the metal pipe fitting in the circumferential direction can be calibrated in advance, so that the position precision and the position consistency of the clamped metal pipe fitting are further improved.

Description

Technical Field

[0001] The utility model relates to a clamping assembly for medical metal pipe fittings and belongs to the technical field of medical equipment processing. Background Art

[0002] Metal pipes are widely used in industrial products. Similarly, metal catheters are also an important part of medical consumables. Due to the needs of medical applications, catheter-type medical consumables often require various processing such as marking on metal catheters to meet a variety of application scenarios. Since thin-walled pipes have poor rigidity and high dimensional requirements for medical device parts processing, how to achieve the clamping of pipes for subsequent processing has become a technical problem that needs to be solved urgently. Utility Model Content

[0003] The purpose of the utility model is to provide a clamping assembly for medical metal pipe fittings, which can pre-calibrate the circumferential position of the metal pipe fittings while achieving clamping and positioning of the two ends of the metal pipe fittings, thereby further improving the position accuracy and position consistency of the metal pipe fittings after clamping.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a clamping assembly for a medical metal pipe fitting, comprising: a base plate, a fixed bracket installed at one end of the base plate, a movable bracket arranged at the other end of the base plate, and at least two support blocks spaced apart and arranged between the fixed bracket and the movable bracket, the fixed bracket is provided with a positioning block on one side facing the movable bracket, the movable bracket is provided with a thimble arranged towards the positioning block, the metal pipe fitting comprises: a body and a lug portion extending outward from a partial circumferential area of ​​an end face of the body, the upper surface of the support block is provided with a V-shaped support groove for the body of the metal pipe fitting to be embedded;

[0005] The main body of the positioning block is installed on the main body of a pneumatic chuck and is located between the first movable part and the second movable part of the pneumatic chuck. The main body of the positioning block has an outward protrusion on the end surface facing the ejector. The conical protrusion is coaxially arranged with the ejector and can be embedded in the metal pipe. The protrusion of the positioning block is provided with a first clamping strip installed on the first movable part of the pneumatic chuck and a second clamping strip installed on the second movable part of the pneumatic chuck on the side opposite to the main body. The second clamping strip has an arc groove on the surface facing the first clamping strip for the lug of the metal pipe to be embedded.

[0006] The further improved scheme in the above technical scheme is as follows:

[0007] 1. In the above solution, the surface of the first clamping strip facing the second clamping strip is a plane.

[0008] 2. In the above scheme, one end face of the inner side of the lug portion of the metal pipe is higher than the other end face, and a step groove is provided on the surface of the first clamping strip facing the second clamping strip, and the surface of the first clamping strip facing the second clamping strip is used for clamping contact with one end face of the inner side of the lug portion, and the lower surface of the step groove is used for clamping contact with the other end face of the inner side of the lug portion.

[0009] 3. In the above solution, a notch groove is provided on the main body of the positioning block for the lug portion of the metal pipe to be embedded.

[0010] 4. In the above solution, the lower end of the movable bracket is connected to the piston rod of a cylinder installed on the base plate.

[0011] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0012] The utility model discloses a clamping assembly for a medical metal pipe fitting, wherein the metal pipe fitting comprises: a body and a convex ear portion extending outward from a partial circumferential area of ​​an end surface of the body, a V-shaped support groove is provided on the upper surface of a support block for the body of the metal pipe fitting to be embedded, a main body of the positioning block is mounted on the main body of a pneumatic chuck and is located between the first movable part and the second movable part of the pneumatic chuck, and an outward convex portion is provided on the end surface of the main body of the positioning block facing the ejector pin, and the conical convex portion is coaxially arranged with the ejector pin and can be embedded in the metal pipe fitting. In the pipe fitting, a first clamping strip installed on the first movable part of the pneumatic chuck and a second clamping strip installed on the second movable part of the pneumatic chuck are respectively arranged on the side of the raised part of the positioning block opposite to its main body. An arc-shaped groove for the lug part of the metal pipe fitting to be embedded is provided on the surface of the second clamping strip facing the first clamping strip. While achieving clamping and positioning of the metal pipe fitting at both ends, the circumferential position of the metal pipe fitting can be calibrated in advance, further improving the position accuracy and consistency of the metal pipe fitting after clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a structural schematic diagram of the clamping assembly of the medical metal pipe fitting of the utility model;

[0014] Attached Figure 2 for Figure 1 A magnified view of the local structure in

[0015] Attached Figure 3 It is a partial structural front view of the clamping assembly of the medical metal pipe fitting of the utility model;

[0016] Attached Figure 4 It is a partial structural sectional view of the clamping assembly of the medical metal pipe fitting of the utility model.

[0017] In the above drawings: 100, metal pipe; 101, main body; 102, lug; 1, base plate; 2, fixed bracket; 3, movable bracket; 4, support block; 41, V-shaped support groove; 5, positioning block; 51, main body; 52, raised portion; 53, notched groove; 6, ejector pin; 7, pneumatic chuck; 71, main body; 72, first movable portion; 73, second movable portion; 81, first clamping strip; 82, second clamping strip; 83, arc groove; 84, stepped groove. DETAILED DESCRIPTION

[0018] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0019] Embodiment 1: A clamping assembly for a medical metal pipe fitting, comprising: a base plate 1, a fixed bracket 2 mounted on one end of the base plate 1, a movable bracket 3 arranged at the other end of the base plate 1, and at least two support blocks 4 spaced apart and arranged between the fixed bracket 2 and the movable bracket 3, wherein the fixed bracket 2 is provided with a positioning block 5 on the side facing the movable bracket 3, and the movable bracket 3 is provided with a thimble 6 arranged toward the positioning block 5, and the metal pipe fitting 100 comprises: a body 101 and a lug portion 102 extending outward from a partial circumferential area of ​​an end surface of the body 101, and the upper surface of the support block 4 is provided with a V-shaped support groove 41 for the body 101 of the metal pipe fitting 100 to be embedded;

[0020] The main body 51 of the positioning block 5 is installed on the main body 71 of a pneumatic chuck 7 and is located between the first movable part 72 and the second movable part 73 of the pneumatic chuck 7. The main body 51 of the positioning block 5 has an outward protrusion 52 on the end surface facing the ejector pin 6. The conical protrusion 52 is coaxially arranged with the ejector pin 6 and can be embedded in the metal pipe 100. The protrusion 52 of the positioning block 5 is provided with a first clamping strip 81 installed on the first movable part 72 of the pneumatic chuck 7 and a second clamping strip 82 installed on the second movable part 73 of the pneumatic chuck 7 on the side opposite to the main body 51 thereof. The second clamping strip 82 has an arc groove 83 on the surface facing the first clamping strip 81 for the lug 102 of the metal pipe 100 to be embedded.

[0021] The surface of the first clamping strip 81 facing the second clamping strip 82 is a plane;

[0022] One end face of the inner side of the lug portion 102 of the above-mentioned metal pipe fitting 100 is higher than the other end face, and a stepped groove 84 is provided on the surface of the above-mentioned first clamping strip 81 facing the second clamping strip 82. The surface of the above-mentioned first clamping strip 81 facing the second clamping strip 82 is used for clamping contact with one end face of the inner side of the lug portion 102, and the lower surface of the above-mentioned stepped groove 84 is used for clamping contact with the other end face of the inner side of the lug portion 102.

[0023] Embodiment 2: A clamping assembly for a medical metal pipe fitting, comprising: a base plate 1, a fixed bracket 2 mounted on one end of the base plate 1, a movable bracket 3 arranged at the other end of the base plate 1, and at least two support blocks 4 spaced apart and arranged between the fixed bracket 2 and the movable bracket 3, wherein the fixed bracket 2 is provided with a positioning block 5 on the side facing the movable bracket 3, and the movable bracket 3 is provided with a thimble 6 arranged toward the positioning block 5, and the metal pipe fitting 100 comprises: a body 101 and a lug portion 102 extending outward from a partial circumferential area of ​​an end surface of the body 101, and the upper surface of the support block 4 is provided with a V-shaped support groove 41 for the body 101 of the metal pipe fitting 100 to be embedded;

[0024] The main body 51 of the positioning block 5 is installed on the main body 71 of a pneumatic chuck 7 and is located between the first movable part 72 and the second movable part 73 of the pneumatic chuck 7. The main body 51 of the positioning block 5 has an outward protrusion 52 on the end surface facing the ejector pin 6. The conical protrusion 52 is coaxially arranged with the ejector pin 6 and can be embedded in the metal pipe 100. The protrusion 52 of the positioning block 5 is provided with a first clamping strip 81 installed on the first movable part 72 of the pneumatic chuck 7 and a second clamping strip 82 installed on the second movable part 73 of the pneumatic chuck 7 on the side opposite to the main body 51 thereof. The second clamping strip 82 has an arc groove 83 on the surface facing the first clamping strip 81 for the lug 102 of the metal pipe 100 to be embedded.

[0025] The main body 51 of the positioning block 5 is provided with a notch 53 for the lug 102 of the metal pipe 100 to be inserted into.

[0026] The lower end of the movable bracket 3 is connected to a piston rod of a cylinder 16 mounted on the base plate 1 .

[0027] When in use, first move the movable bracket to the farthest distance from the fixed bracket, and put the pneumatic chuck in the open state;

[0028] The metal pipe is transported between the positioning block and the ejector pin so that the body of the horizontally extending metal pipe is embedded in the V-shaped support groove of each support block and the lug portion at one end of the metal pipe body is close to the positioning block and the other end is close to the ejector pin;

[0029] At this time, the body of the metal pipe, the raised portion of the positioning block and the ejector pin are in a coaxial state, and the lug portion at one end of the body of the metal pipe is located between the first clamping strip and the second clamping strip;

[0030] Switch the pneumatic chuck to the clamping state, so that the first clamping strip contacts the inner end surface of the lug portion, and the inner wall of the arc groove on the second clamping strip contacts the arc surface on the outer side of the lug portion, thereby calibrating the position of the metal pipe fitting;

[0031] The movable bracket is driven to move a certain distance in the direction of the fixed bracket, so that the ejector pin moving with the movable bracket is embedded in one end of the metal pipe and pushes the other end of the metal pipe to approach the protrusion on the positioning block;

[0032] By switching the piston rod of the cylinder from the extended state to the contracted state again, the movable bracket is driven to continue to move a distance in the direction of the fixed bracket, so that the ejector pin that moves with the movable bracket and is embedded in one end of the metal pipe continues to push the metal pipe to move until the other end face of the metal pipe contacts the end face of the main body of the positioning block toward the ejector pin, thereby achieving clamping and positioning of the two ends of the metal pipe.

[0033] When the clamping assembly of the medical metal pipe is used, it can realize clamping and positioning of the metal pipe at both ends and calibrate the circumferential position of the metal pipe in advance, so as to further improve the position accuracy and consistency of the metal pipe after clamping.

[0034] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A clamping assembly for a medical metal pipe, comprising: A substrate (1), a fixed bracket (2) mounted on one end of the substrate (1), a movable bracket (3) arranged at the other end of the substrate (1), and at least two support blocks (4) arranged between the fixed bracket (2) and the movable bracket (3) at intervals, wherein the fixed bracket (2) is provided with a positioning block (5) on the side facing the movable bracket (3), and the movable bracket (3) is provided with a ejector pin (6) arranged towards the positioning block (5), characterized in that: the metal pipe fitting (100) comprises: a body (101) and a lug portion (102) extending outward from a partial circumferential area of ​​an end surface of the body (101), and the upper surface of the support block (4) is provided with a V-shaped support groove (41) for the body (101) of the metal pipe fitting (100) to be embedded; The main body (51) of the positioning block (5) is mounted on the main body (71) of a pneumatic chuck (7) and is located between the first movable part (72) and the second movable part (73) of the pneumatic chuck (7). The main body (51) of the positioning block (5) has an outwardly facing protrusion (52) on its end surface facing the ejector pin (6). The conical protrusion (52) is coaxially arranged with the ejector pin (6) and can be embedded in the metal pipe (100). The positioning block A first clamping strip (81) mounted on a first movable portion (72) of the pneumatic chuck (7) and a second clamping strip (82) mounted on a second movable portion (73) of the pneumatic chuck (7) are respectively provided on the side of the protruding portion (52) of the pneumatic chuck (5) opposite to the main body portion (51), and an arc-shaped groove (83) for the lug portion (102) of the metal pipe (100) to be embedded is provided on the surface of the second clamping strip (82) facing the first clamping strip (81).

2. The clamping assembly for medical metal pipes according to claim 1, characterized in that: The surface of the first clamping strip (81) facing the second clamping strip (82) is a plane.

3. The clamping assembly for medical metal pipes according to claim 1, characterized in that: One end face of the inner side of the lug portion (102) of the metal pipe (100) is higher than the other end face, and a stepped groove (84) is provided on the surface of the first clamping strip (81) facing the second clamping strip (82), and the surface of the first clamping strip (81) facing the second clamping strip (82) is used for clamping contact with one end face of the inner side of the lug portion (102), and the lower surface of the stepped groove (84) is used for clamping contact with the other end face of the inner side of the lug portion (102).

4. The clamping assembly for medical metal pipes according to claim 1, characterized in that: The main body (51) of the positioning block (5) is provided with a notch groove (53) into which the lug portion (102) of the metal pipe (100) can be inserted.

5. The clamping assembly for medical metal pipes according to claim 1, characterized in that: The lower end of the movable bracket (3) is connected to a piston rod of a cylinder (16) mounted on the base plate (1).

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