A double-headed catheter lathe with a closed processing environment

Abstract

The present invention discloses a double-headed catheter lathe with a closed processing environment in the field of catheter processing, comprising: a first spindle, which can rotate along its own axis and has a first fixture fixed at its inner end; a feed inner hole, which axially passes through the first spindle and is coaxially arranged with the first spindle; a second spindle, which is coaxially arranged with the first spindle, can rotate along its own axis and has a second fixture fixed at its inner end; a discharge inner hole, which axially passes through the second spindle and is coaxially arranged with the second spindle; a tool; a push rod, which is used to push the catheter from the outer end of the feed inner hole into the first fixture, so that the first end of the catheter is exposed for cutting by the tool; at least one of the first spindle and the second spindle can be axially translated, so that the second fixture clamps the first end of the catheter in the first fixture and exposes the second end for cutting by the tool, and at the same time, the catheter previously clamped by the second fixture is pushed into the discharge inner hole through the catheter in the first fixture.

Description

Technical Field

[0001] The invention relates to the field of catheter processing, and in particular to a double-head catheter lathe with a closed processing environment. Background Art

[0002] The valve guide is a guide device for the valve of a car engine, ensuring that the valve moves back and forth in a straight line so that the valve and the valve seat can fit correctly.

[0003] Both ends of the catheter need to be processed to meet structural requirements. In the existing technology, when double-end processing of the catheter is carried out, the method of clamping is mostly adopted. That is, after turning the first end of the catheter, the catheter clamping position is manually changed, and then the second end of the catheter is processed. Due to manual participation and the existence of secondary clamping and positioning, the catheter positioning accuracy is low and the production efficiency is low. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a double-head catheter lathe with a closed processing environment.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A double-headed catheter lathe with a closed processing environment, comprising:

[0007] The first main shaft is capable of rotating along its own axis, and a first clamp is fixedly provided at the inner end thereof;

[0008] The feed inner hole axially penetrates the first main shaft and is coaxially arranged with the first main shaft;

[0009] The second main shaft is coaxially arranged with the first main shaft and can rotate along its own axis, and a second clamp is fixedly provided at the inner end;

[0010] The discharge inner hole axially penetrates the second main shaft and is coaxially arranged with the second main shaft;

[0011] Cutlery;

[0012] A push rod is used to push the conduit from the outer end of the feed inner hole into the first fixture, so that the first end of the conduit is exposed for cutting by the tool;

[0013] At least one of the first spindle and the second spindle can be axially translated, so that the second fixture clamps the first end of the tube in the first fixture and exposes the second end for cutting by the tool, and at the same time pushes the tube previously clamped by the second fixture into the discharge hole.

[0014] Furthermore, the first main shaft is a static main shaft that cannot perform axial translation, and the second main shaft is a dynamic main shaft that can perform axial translation.

[0015] Furthermore, it includes a sealing frame; the first spindle inner end, the second spindle inner end, and the tool are all located in the sealing frame, and the first spindle outer end and the second spindle outer end are both located outside the sealing frame.

[0016] Furthermore, it includes a protective cover that can be raised and lowered and is connected to the outside of the sealing frame by negative pressure, a guide cylinder that can be raised and lowered, and a material receiving vehicle located at the lower part of the guide cylinder; the protective cover and the guide cylinder are respectively located above and below the position where the catheter is cut. When the catheter is cut by the tool, the protective cover and the guide cylinder move toward each other to form an enclosing structure that prevents the catheter cutting material from splashing out.

[0017] Furthermore, an opening is provided on the side of the sealing frame; and the material receiving vehicle moves to the lower part of the guide cylinder through the opening.

[0018] Furthermore, it includes a material guide pipe and a material receiving basket located outside the sealing frame; one end of the material guide pipe is aligned with the discharge inner hole at the outer end of the second main shaft, and the other end is tilted downward to pass through the sealing frame and aligned with the material receiving basket.

[0019] Furthermore, the sealing frame includes a frame body and organic glass mounted around the frame body.

[0020] Furthermore, the tool includes a first tool for cutting the first end of the catheter and a second tool for cutting the second end of the catheter. After there are two tools, the two tools can work simultaneously to turn the ends of the two catheters respectively, thereby doubling the production efficiency.

[0021] Compared with the prior art, the beneficial technical effects of the present invention are:

[0022] 1. The present invention loads materials through the feed inner hole of the first spindle and discharges materials through the discharge inner hole of the second spindle. At least one of the first spindle and the second spindle can perform axial translation. When the first spindle cooperates with the tool to complete the processing of the first end of the catheter, the two spindles approach to transfer the catheter to the second spindle, and process the other end of the catheter. Since the loading and unloading of the catheter do not require manual participation, the time for loading, clamping and unloading is shortened, and production efficiency is improved. In addition, the positioning and clamping do not require the participation of workers, which can also improve the accuracy and processing consistency of the product.

[0023] 2. Since the transfer, reversal and clamping of the catheter do not require human intervention, it provides the prerequisite for creating a closed processing environment; the present invention sets a sealing frame to isolate the processing position of the catheter from the external space. When the catheter is processed, the catheter itself can seal the feed inner hole and the discharge inner hole, so that the catheter processing position is isolated from the operators and the work site, preventing dust, cutting materials, etc. from entering the workshop during the catheter processing, thereby optimizing the workshop environment.

[0024] 3. The present invention also provides a protective cover and a guide cylinder at the catheter processing position. When the catheter is processed, the protective cover and the guide cylinder move toward each other to form an enclosing structure, so that the cutting material of the catheter can only fall downward into the guide cylinder and follow the guide cylinder into the material receiving vehicle; because the enclosing structure is not a sealed structure, it can only block cutting materials with larger particles, but small particles such as dust may still overflow the enclosing structure and be deposited on various components in the sealed frame. Therefore, the protective cover in the present invention is also connected to the external negative pressure source to suck out the dust in the catheter processing process, avoiding the dust from being deposited in the components in the closed frame, thereby improving the overall cleanliness of the equipment and reducing the equipment maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of the first main shaft and the second main shaft of the present invention;

[0026] Figure 2 This is a schematic structural diagram of the feed inner hole of the present invention;

[0027] Figure 3 It is a schematic structural diagram of the present invention as a whole;

[0028] Figure 4 It is a schematic structural diagram of the present invention as a whole. DETAILED DESCRIPTION

[0029] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 4 As shown, a double-headed catheter lathe 1 with a closed processing environment includes a first spindle 10, a second spindle 20, a first fixture 11, a second fixture 21, a push rod 2, a first tool 13, a second tool 23, a sealing frame 70, a protective cover 30, a guide cylinder 40, a material receiving cart 60, a material guide pipe 24 and a material receiving basket 50.

[0031] Both the first spindle 10 and the second spindle 20 are driven by a motor and a belt to rotate. The difference is that the first spindle 10 is a stationary spindle that cannot translate axially, while the second spindle 20 is a dynamic spindle that can translate axially. The second spindle 20 can translate axially through the cooperation of a motor and a screw. The first clamp 11 and the second clamp 21 are fixedly mounted on the inner ends of the first and second spindles 10, 20, respectively, and rotate with the rotation of the spindles.

[0032] In the present invention, the direction close to the processing position of the catheter 1 is referred to as the inner direction, and the direction away from the processing position of the catheter 1 is referred to as the outer direction.

[0033] The first spindle 10 is provided with a feed inner hole 12, which is coaxial with the first spindle 10; the second spindle 20 is provided with a discharge inner hole 22, which is coaxial with the second spindle 20; the push rod 2 is a long rod that can perform axial translation, and specifically can be implemented by a cylinder, a screw rod, etc. as an actuator; the push rod 2, the first spindle 10 and the second spindle 20 are coaxially arranged, so the push rod 2 can push the first conduit 1 from the outer end of the feed inner hole 12 to the inner end and into the clamping area of the first clamp 11.

[0034] The first fixture 11 clamps the first conduit 1 , and the first tool 13 performs turning on the first conduit 1 . At this time, there is no conduit 1 in the second fixture 21 .

[0035] When the first end of the first catheter 1 is processed, the second spindle 20 translates toward the first spindle 10, clamps the first end of the first catheter 1, and exposes the second end of the first catheter 1 for turning by the second tool 23; at the same time, the push rod 2 pushes the second catheter 1 into the first fixture 11 and clamps it, thereby processing the first end of the second catheter 1.

[0036] When the first end of the second catheter 1 is processed, the second end of the first catheter 1 is also processed. The first clamp 11 still clamps the second catheter 1, and the second clamp 21 releases the first catheter 1. At this time, the second main shaft 20 moves horizontally toward the first main shaft 10, and the second catheter 1 will push the first catheter 1 into the discharge inner hole 22 of the second main shaft 20.

[0037] The process of loading and transferring subsequent tubes 1 between axes is the same as the above process. When enough tubes 1 are accumulated in the discharge inner hole 22, the first tube 1 is pushed out from the outer end of the discharge inner hole 22 and enters the receiving basket 50 along the guide tube 24 to complete the discharge.

[0038] The first clamp 11 and the second clamp 21 can work simultaneously to perform turning processing on the catheter 1 clamped by the first clamp 11 and the catheter 1 clamped by the second clamp 21 respectively, which more than doubles the work efficiency compared with the single-tool, double-head clamping solution.

[0039] The sealing frame 70 is composed of a frame body and organic glass embedded in the frame body. The organic glass is transparent and therefore cannot be shown in the figure. The operator can observe the processing of the catheter 1 through the transparent organic glass, but can be isolated from the processing environment of the catheter 1, which can prevent the operator from inhaling processing dust.

[0040] Structurally, the feed inner hole 12 of the first main shaft 10 and the discharge inner hole 22 of the second main shaft 20 will destroy this mutually isolated environment, but when the catheter 1 is processed, the two catheters 1 respectively block the feed inner hole 12 and the discharge inner hole 22, and can continue to maintain the isolation between the internal and external environments.

[0041] The protective cover 30 and the guide cylinder 40 are both capable of lifting and lowering, and can be operated by pneumatic cylinders, electric cylinders, etc. The protective cover 30 is connected to an external negative pressure source through a retractable pipe, and the upper portion of the guide cylinder 40 receives the cut material, and the lower portion is aligned with the material receiving vehicle 60.

[0042] Even if the internal and external environments are isolated, the cutting materials and dust generated during the processing of the catheter 1 will still fall onto the internal components, requiring regular cleaning and maintenance. In the present invention, when the catheter 1 is processed, the protective cover 30 descends and the guide cylinder 40 rises, forming an enclosure structure around the processing position of the catheter 1; although this enclosure structure cannot be completely sealed, it can prevent the cutting materials from splashing, so the cutting materials of the catheter 1 all enter the material receiving vehicle through the guide cylinder 40, and the protective cover 30 can absorb the processing dust through the retractable pipe, slowing down the accumulation rate of cutting materials and dust inside the equipment, reducing maintenance costs, and increasing the expected life of the equipment. There are two protective covers 30 and two guide cylinders 40, which can be raised and lowered separately or together; when the catheter 1 is transferred between the two main shafts, the protective cover 30 rises and the guide cylinder 40 falls, which can avoid motion interference with the main shaft.

[0043] In addition, the material receiving trolley 60 is movable, and an opening is provided at the bottom side of the sealing frame 70. The material receiving trolley can move to the lower part of the guide cylinder 40 through the opening. When the cutting material in the material receiving trolley 60 is full, the material receiving trolley 60 can be pulled out; the size of the material receiving trolley 60 is adapted to the size of the opening, and the material receiving trolley 60 can freely enter and exit the opening without too much gap between the two.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be embraced herein, and any reference signs in the claims should not be construed as limiting the claims to which they relate.

[0045] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A double-headed catheter lathe with a closed processing environment, characterized in that: include: The first main shaft is capable of rotating along its own axis, and a first clamp is fixedly provided at the inner end thereof; The feed inner hole axially penetrates the first main shaft and is coaxial with the first main shaft; The second main shaft is coaxial with the first main shaft and can rotate along its own axis, and a second clamp is fixed on the inner end; The discharge inner hole axially penetrates the second main shaft and is coaxial with the second main shaft; Cutlery; A push rod is used to push the conduit from the outer end of the feed inner hole into the first fixture, so that the first end of the conduit is exposed for cutting by the tool; At least one of the first spindle and the second spindle is capable of axial translation, so that the second fixture clamps the first end of the conduit in the first fixture and exposes the second end for cutting by the tool, and at the same time, the conduit previously clamped by the second fixture is pushed into the discharge inner hole through the conduit in the first fixture; It also includes a sealing frame; the inner end of the first spindle, the inner end of the second spindle, and the tool are all located in the sealing frame, and the outer end of the first spindle and the outer end of the second spindle are both located outside the sealing frame; The sealing frame isolates the processing position of the catheter from the external space. When the catheter is processed, the two catheters block the feed hole and the discharge hole respectively, so that the catheter processing position is isolated from the operators and the work site. It also includes a protective cover that can be raised and lowered and is in negative pressure communication with the outside of the sealing frame, a guide cylinder that can be raised and lowered, and a material receiving vehicle located at the bottom of the guide cylinder; The protective cover and guide cylinder are respectively located above and below the position where the catheter is cut. When the catheter is cut by the tool, the protective cover and guide cylinder move toward each other to form an enclosing structure that prevents the catheter cutting material from splashing out and can absorb processing dust.

2. The double-headed catheter lathe with a closed processing environment according to claim 1, characterized in that: The first main shaft is a static main shaft that cannot perform axial translation, and the second main shaft is a dynamic main shaft that can perform axial translation.

3. The double-headed catheter lathe with a closed processing environment according to claim 1, characterized in that: An opening is provided on the side of the sealing frame; the material receiving vehicle moves to the lower part of the guide cylinder through the opening.

4. The double-head catheter lathe with a closed processing environment according to claim 1, characterized in that: It includes a material guide pipe and a material receiving basket located outside the sealing frame; one end of the material guide pipe is aligned with the discharge inner hole at the outer end of the second main shaft, and the other end is tilted downward to pass through the sealing frame and aligned with the material receiving basket.

5. The double-head catheter lathe with a closed processing environment according to claim 1, characterized in that: The sealing frame includes a frame body and organic glass mounted around the frame body.

6. The double-headed catheter lathe with a closed processing environment according to any one of claims 1 to 5, characterized in that: The cutting tool comprises a first cutting tool for cutting the first end of the catheter and a second cutting tool for cutting the second end of the catheter.

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