Bar conveying device for friction stir additive material and friction stir additive material equipment

Abstract

The utility model discloses a bar conveying device for friction stir additive manufacturing and friction stir additive manufacturing equipment, and belongs to the field of additive manufacturing, the bar conveying device comprises a support, a first bearing piece, a second bearing piece and a third bearing piece, the first bearing piece is hollow to form a feeding channel, the second bearing piece is hollow to form a bearing channel, and the third bearing piece is hollow to form a feeding channel; the third bearing piece is hollow to form a feeding channel, and the second bearing piece is slidably installed on the support along the axis of the feeding channel so that the feeding channel, the bearing channel and the feeding channel can be selectively communicated; according to the structure, the second bearing piece can be matched with the first limiting groove formed in the first bearing piece through the first limiting protrusion arranged on the second bearing piece, so that the bearing channel communicates with the feeding channel, and bars can enter the bearing channel from the feeding channel; the second bearing piece can be matched with a second limiting groove formed in the third bearing piece through a second limiting protrusion arranged on the second bearing piece, so that the bars can enter a feeding channel formed in the third bearing piece from the bearing channel, and then continuous feeding of the bars is achieved.

Description

Technical Field

[0001] The present application relates to the field of additive manufacturing technology, and in particular to a rod material conveying device and a friction stir additive equipment for friction stir additive manufacturing. Background Art

[0002] Friction stir additive manufacturing has rod feeding and wire feeding methods, but in rod feeding additive manufacturing, continuous additive manufacturing has certain difficulties in rod feeding. Rods are directional and need to be fed into the equipment at a fixed angle. Moreover, when the rods are added, the rods rotate continuously, making centering and transportation difficult. A new rod feeding device is needed to achieve continuous transportation and centering of the rods. Utility Model Content

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, one purpose of the present application is to propose a rod material conveying device for stir friction additive manufacturing, comprising a bracket, a first receiving member, a second receiving member and a third receiving member, the axes of the first receiving member, the second receiving member and the third receiving member being collinear; the first receiving member is hollow to form a feed channel, the second receiving member is hollow to form a receiving channel, and the third receiving member is hollow to form a feeding channel, the first receiving member, the second receiving member and the third receiving member are arranged in sequence along the axis of the feed channel, and the second receiving member is slidably installed on the bracket along the axis of the feed channel so that the feed channel, the receiving channel and the feeding channel can be selectively connected; a first limiting groove is provided on the first receiving member, a first limiting protrusion and a second limiting protrusion are provided on the second receiving member, and the third receiving member is provided with a second limiting groove, the first limiting protrusion is suitable for being snapped into the first limiting groove, and the second limiting protrusion is suitable for being snapped into the second limiting groove.

[0005] According to the above technical means, the second receiving member of the present application can cooperate with the first limiting groove provided on the first receiving member through the first limiting protrusion, so that the receiving channel and the feeding channel are connected, so that the rod material can enter the receiving channel from the feeding channel. Furthermore, the second receiving member can also cooperate with the second limiting groove provided on the third receiving member through the second limiting protrusion, so that the rod material can enter the feeding channel provided on the third receiving member from the receiving channel, thereby realizing continuous feeding of the rod material.

[0006] Optionally, in one embodiment of the present application, the second receiving member and the third receiving member are rotatably mounted on the bracket.

[0007] Optionally, in one embodiment of the present application, the second receiving member includes a sliding seat and a rotating portion, the rotating portion is rotatably mounted on the sliding seat, and the rotating portion is hollow to form a receiving channel.

[0008] Optionally, in one embodiment of the present application, the bracket also includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are axially spaced apart, a second through hole is provided on the second mounting plate, the first through hole is empty outside the first supporting member, and the second through hole is empty outside the third supporting member.

[0009] Optionally, in one embodiment of the present application, the side wall of the feed channel is provided with a first guide portion extending axially toward the second receiving member, a first limiting protrusion is formed on the side wall of the second receiving member, the first guide portion is formed as a ratchet extending axially, and a first limiting groove is formed at the root of the ratchet of the first guide portion.

[0010] Optionally, in one embodiment of the present application, a second guide portion extending axially toward the second receiving member is provided on the side wall of the feeding channel, a second limiting protrusion is formed on the side wall of the second receiving member, the second guide portion is formed as a ratchet extending axially, and a second limiting groove is formed at the root of the ratchet of the second guide portion.

[0011] Optionally, in one embodiment of the present application, a rotating bearing is provided on both the first limiting protrusion and the second limiting protrusion, the axis of the rotating bearing is perpendicular to the axis of the first receiving member, and the rotating bearing is suitable for sliding along the inclined surface of the corresponding ratchet tooth.

[0012] Optionally, in one embodiment of the present application, the tooth shapes of the ratchet teeth of the first receiving member and the ratchet teeth of the third receiving member are opposite.

[0013] Optionally, in one embodiment of the present application, the first receiving member is rotatably mounted on the bracket.

[0014] Another object of the present application is to propose a stir friction additive device, comprising the above-mentioned rod material conveying device and a main shaft, wherein the main shaft has a accommodating channel for accommodating rod materials; the main shaft is suitable for being fixedly connected to a third supporting component so that the accommodating channel is connected to the feeding channel. The application of the rod material conveying device to the stir friction additive device can realize continuous feeding of the stir friction additive device, thereby realizing continuous additive manufacturing.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 Schematic diagram of the structure of a bar material conveying device according to one embodiment of the present application;

[0018] Figure 2 Schematic diagram of the structure of a bar material conveying device according to another embodiment of the present application;

[0019] Figure 3 Schematic diagram of the structure of a bar conveying device according to another embodiment of the present application.

[0020] Reference numerals:

[0021] First mounting plate 7, second mounting plate 8, slide rail 9;

[0022] A first receiving member 10, a feeding channel 11, and a first limiting groove 12;

[0023] The second receiving member 20, the first limiting protrusion 22-1, the second limiting protrusion 22-2, and the sliding seat 23;

[0024] The third receiving member 30 , the feeding channel 31 , and the second limiting groove 32 . DETAILED DESCRIPTION

[0025] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0026] like Figure 1 and Figure 2 As shown, the bar material conveying device includes a bracket, a first receiving member 10, a second receiving member 20 and a third receiving member 30, and the axes of the first receiving member 10, the second receiving member 20 and the third receiving member 30 are collinear;

[0027] The first receiving member 10 is hollow to form a feed channel 11, the second receiving member 20 is hollow to form a receiving channel, and the third receiving member 30 is hollow to form a feeding channel 31. The first receiving member 10, the second receiving member 20, and the third receiving member 30 are sequentially spaced apart along the axis of the feed channel 11, and the second receiving member 20 is slidably mounted on the bracket along the axis of the feed channel 11 so that the feed channel 11, the receiving channel, and the feeding channel 31 can be selectively connected; for example, when the second receiving member 20 slides toward the direction of the third receiving member 30, it can cooperate with the third receiving member 30 to connect the receiving channel and the feeding channel 31. When the second receiving member 20 slides toward the direction of the first receiving member 10, it can cooperate with the first receiving member 10 to connect the receiving channel and the feed channel 11.

[0028] Furthermore, the first supporting member 10 is provided with a first limiting groove 12, the second supporting member 20 is provided with a first limiting protrusion 22-1 and a second limiting protrusion 22-2, and the third supporting member 30 is provided with a second limiting groove 32, the first limiting protrusion 22-1 is suitable for being snapped into the first limiting groove 12, and the second limiting protrusion 22-2 is suitable for being snapped into the second limiting groove 32.

[0029] It is understood that the second receiving member 20 engages with the first limiting groove 12 via the first limiting protrusion 22-1, thereby connecting the receiving channel with the feed channel 11, allowing the rod to enter the receiving channel through the feed channel 11. The slidable second receiving member 20 can also engage with the second limiting groove 32 via the second limiting protrusion 22-2, thereby connecting the receiving channel with the feed channel 31, allowing the rod to enter the feed channel 31 through the receiving channel. When the feed channel 31 is connected to the main shaft of the friction stir additive machine, it can effectively achieve continuous conveying of the rod.

[0030] In one embodiment of the present application, the second receiving member 20 and the third receiving member 30 can both be rotatably mounted on the bracket.

[0031] It is understood that the rod conveying device of the present application is applied to friction stir additive manufacturing. The equipment for implementing friction stir additive manufacturing, such as friction stir additive manufacturing equipment, is provided with a main shaft, and the main shaft is provided with a accommodating channel for accommodating rods. The rod conveying device can convey the rods into the accommodating channel. The main shaft can rotate to drive the rods in the accommodating channel to rotate. The rotating rods can continuously stir and rub with the substrate to generate heat, thereby achieving plastic softening, thereby achieving friction stir additive manufacturing. The rotatable third receiving member 30 is conveniently installed on the main shaft to continuously feed the main shaft. In order to connect the receiving channel provided by the second receiving member 20 with the feeding channel 31 provided by the rotating third receiving member 30, the second receiving member 20 also needs to be rotated. In this way, the second limiting protrusion 22-2 is engaged with the second limiting groove 32, so that the second receiving member 20 and the third receiving member 30 rotate simultaneously, and the receiving channel and the feeding channel 31 are connected. In this way, the rods can enter the feeding channel 31 from the receiving channel to achieve feeding.

[0032] Furthermore, the shape of the bar stock can be circular or other shapes, such as square, triangle, or other polygonal shapes. Especially for polygonal bar stock, the above structure can effectively align the polygonal bar stock in the receiving channel with the feeding channel 31. That is, by the simultaneous rotation of the second receiving member 20 and the third receiving member 30, the posture of the receiving channel is consistent with the posture of the feeding channel 31, so that the bar stock can pass from the receiving channel into the feeding channel 31 provided on the rotating third receiving member 30.

[0033] Furthermore, when it is necessary to fill the rod material, the second receiving member 20 slides toward the first receiving member 10 along the axis of the feed channel 11. During the sliding process, the first limiting protrusion 22-1 can be stuck in the first limiting groove 12, so that the posture of the receiving channel is consistent with the posture of the feed channel 11, that is, the receiving channel and the feed channel 11 are connected, so that the rod material can enter the receiving channel from the feed channel 11.

[0034] In this way, in the present application, for example, a bar with a rectangular cross-section enters the feed channel 11 and enters the receiving channel from the feed channel 11. One end of the bar moves together with the second receiving member 20 toward the third receiving member 30. Under the action of the second limiting protrusion 22-2 and the second limiting groove 32, the receiving channel and the feeding channel 31 are connected. When the bar is polygonal and the bar is long enough, the first receiving member 10, the second receiving member 20 and the third receiving member 30 will rotate simultaneously under the action of the bar. In the above case, the first receiving member 10 can be rotatably arranged. When the first receiving member 10 rotates, in a specific embodiment, a guide portion can be set upstream of the feed channel 11, for example, the upper part of the guide portion is circular, the lower part of the guide portion is rectangular, and there is a transition section between the circular and rectangular shapes. In this way, no matter what the posture of the rectangular bar is, it can be guided into the feed channel 11 by the action of the guide portion to achieve automatic loading.

[0035] When the bar material is polygonal and relatively short, that is, when the bar material is separated from the feed channel 11 after entering the receiving channel, the first receiving member 10 can be set without rotating. The second receiving member 20 and the bar material are separated from the first receiving member 10 and move toward the third receiving member 30. Then, under the action of the second limiting protrusion 22-2 and the second limiting groove 32, the receiving channel and the feed channel 31 are connected to allow the bar material to enter the feed channel 31. At this time, the second receiving member 20 and the third receiving member 30 rotate at the same time, but will not drive the first receiving member 10 to rotate. In this way, the first receiving member 10 does not need to rotate. If the first receiving member 10 does not rotate, the posture of its feed channel 11 can be fixed, which is convenient for automatic loading.

[0036] Furthermore, the power for the second receiving member 20 to move toward the third receiving member 30 can be that the bar material freely falls under gravity and drives the second receiving member 20 to move through friction. In this case, an elastic reset member can be provided between the second receiving member 20 and the third receiving member 30 to reset the second receiving member 20. This structure will be described in detail later. Alternatively, a second receiving member driving structure, such as a driving cylinder, can be used to drive the second receiving member 20 to slide on the bracket.

[0037] In one embodiment of the present application, the sidewall of the feed channel 11 is provided with a first guide portion extending axially toward the second receiving member 20, a first limiting protrusion 22-1 is formed on the sidewall of the second receiving member 20, the first guide portion is formed as a ratchet extending axially, and the first limiting groove 12 is formed at the root of the ratchet teeth of the first guide portion; a second limiting protrusion 22-2 is formed on the sidewall of the second receiving member 20, and the sidewall of the feed channel 31 is provided with a second guide portion extending axially toward the second receiving member 20, the second guide portion is formed as a ratchet extending axially, and the second limiting groove 32 is formed at the root of the ratchet teeth of the second guide portion. Both the first limiting protrusion 22-1 and the second limiting protrusion 22-2 are provided with a rotating bearing, the axis of the rotating bearing being perpendicular to the axis of the first receiving member 10, and the rotating bearing being adapted to slide along the inclined surface of the ratchet teeth. Preferably, the tooth profile of the ratchet teeth provided on the first receiving member 10 is opposite to that of the ratchet teeth provided on the third receiving member 30.

[0038] like Figure 1 and 2 As shown, even if the third receiving member 30 is rotated, the limiting protrusion can slide along the inclined surface of the ratchet, thereby guiding the limiting protrusion to cooperate with the limiting groove.

[0039] In one embodiment of the present application, Figure 3 As shown, the second receiving member 20 may include a sliding seat 23 and a rotating portion. The rotating portion is rotatably mounted on the sliding seat 23. The rotating portion is hollow to form a receiving channel. The bracket may include a slide rail 9 extending in the axial direction. The sliding seat 23 slides in cooperation with the slide rail 9. For example, the slide rail 9 is a guide post. A sliding sleeve (not shown) is provided on the sliding seat 23. The sliding sleeve slides on the guide post, thereby enabling the sliding seat 23 to slide reliably.

[0040] In one embodiment of the present application, the bracket also includes a first mounting plate 7 and a second mounting plate 8, the first mounting plate 7 and the second mounting plate 8 are arranged axially spaced apart, the slide rail 9 is installed between the first mounting plate 7 and the second mounting plate 8, the first mounting plate 7 is provided with a first through hole, the second mounting plate 8 is provided with a second through hole, the first through hole is empty outside the first supporting member 10, the second through hole is empty outside the third supporting member 30, and the slide rail 9 is installed between the first mounting plate 7 and the second mounting plate 8.

[0041] In one embodiment of the present application, an elastic reset member (not shown) may be further provided, which may abut between the second mounting plate 8 and the sliding seat 23 to keep the second limiting protrusion 22-2 out of the second limiting groove 32 under normal conditions. That is, under normal conditions, the first receiving member 10 and the second receiving member 20 are in a mating state. In this way, when feeding is required, the bar material can directly enter the receiving channel through the feeding channel 11. This structure is simple, reliable, and has high operating efficiency.

[0042] The present application also proposes a friction stir additive manufacturing device, which includes the rod feeding device described above. The friction stir additive manufacturing device includes a main shaft, a receiving channel for receiving rods in the main shaft, and a third receiving member 30 fixedly connected to the main shaft. That is, when the main shaft rotates, it can drive the third receiving member 30 to rotate, and the receiving channel provided on the main shaft is connected to the feeding channel 31 provided on the third receiving member 30, so that the rods can enter the receiving channel through the feeding channel 31. The fixed connection between the main shaft and the third receiving member 30 facilitates the corresponding communication between the receiving channel provided on the main shaft and the feeding channel 31 provided on the third receiving member 30. For example, when the rods are polygonal, the polygonal rods can easily enter the receiving channel through the feeding channel 31, thereby realizing continuous feeding for the main shaft. Furthermore, the main shaft can rotate to drive the rods in the receiving channel to rotate. The rotating rods can continuously stir and rub with the substrate to generate heat, thereby achieving plastic softening, thereby realizing friction stir additive manufacturing.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0045] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A rod material conveying device for stir friction additive manufacturing, characterized in that: include: The bracket, the first receiving member, the second receiving member and the third receiving member, wherein the axes of the first receiving member, the second receiving member and the third receiving member are collinear; The first receiving member is hollow to form a feed channel, the second receiving member is hollow to form a receiving channel, and the third receiving member is hollow to form a feeding channel. The first receiving member, the second receiving member, and the third receiving member are sequentially spaced apart along the axis of the feed channel, and the second receiving member is slidably mounted on the bracket along the axis of the feed channel so that the feed channel, the receiving channel, and the feeding channel can be selectively connected. The first supporting member is provided with a first limiting groove, the second supporting member is provided with a first limiting protrusion and a second limiting protrusion, and the third supporting member is provided with a second limiting groove. The first limiting protrusion is suitable for being snapped into the first limiting groove, and the second limiting protrusion is suitable for being snapped into the second limiting groove.

2. The bar material conveying device according to claim 1, characterized in that: The second receiving member and the third receiving member are rotatably mounted on the bracket.

3. The bar material conveying device according to claim 2, characterized in that: The second receiving member includes a sliding seat and a rotating portion. The rotating portion is rotatably mounted on the sliding seat. The rotating portion is hollow to form the receiving channel.

4. The bar material conveying device according to claim 3, characterized in that: The bracket also includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are axially spaced apart, a first through hole is provided on the first mounting plate, and a second through hole is provided on the second mounting plate, the first through hole is hollowly sleeved outside the first supporting member, and the second through hole is hollowly sleeved outside the third supporting member.

5. The bar material conveying device according to claim 1, characterized in that: The side wall of the feed channel is provided with a first guide portion extending axially toward the second receiving member, the first limiting protrusion is formed on the side wall of the second receiving member, the first guide portion is formed as a ratchet extending axially, and the first limiting groove is formed at the root of the ratchet of the first guide portion.

6. The bar material conveying device according to claim 5, characterized in that: A second guide portion extending axially toward the second receiving member is provided on the side wall of the feeding channel, the second limiting protrusion is formed on the side wall of the second receiving member, the second guide portion is formed as a ratchet extending axially, and the second limiting groove is formed at the root of the ratchet of the second guide portion.

7. The bar material conveying device according to claim 6, characterized in that: The first limiting protrusion and the second limiting protrusion are both provided with a rotating bearing, the axis of the rotating bearing is perpendicular to the axis of the first receiving member, and the rotating bearing is suitable for sliding along the corresponding inclined surface of the ratchet.

8. The bar material conveying device according to claim 7, characterized in that: The ratchet teeth of the first receiving member and the ratchet teeth of the third receiving member have tooth shapes opposite to each other.

9. The bar material conveying device according to any one of claims 1 to 8, characterized in that: The first receiving member is rotatably mounted on the bracket.

10. A friction stir additive device, characterized in that: include: The bar conveying device according to any one of claims 1 to 9; A main shaft, wherein the main shaft has an accommodating channel for accommodating the bar material; The main shaft is adapted to be fixedly connected to the third receiving member so that the accommodating channel is in communication with the feeding channel.

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