Combined substrate

Abstract

The utility model belongs to the field of additive manufacturing, and relates to a combined base plate which comprises a first base plate, a second base plate and fasteners. The first substrate is arranged around the peripheral side of the second substrate; the fastener penetrates through the first substrate and then extends into the second substrate; the upper surface of the first substrate and the upper surface of the second substrate are located on the same plane. The utility model provides the combined substrate which is convenient to disassemble and assemble quickly, reduces waste and improves working efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of additive manufacturing and relates to a combined base plate, in particular to a quickly disassembled and assembled combined base plate. Background Art

[0002] When laser selective melting metal 3D printing metal parts, there is often a lot of stress between the parts and the substrate, so the substrate needs to be securely fixed to the equipment. This faces two problems: 1) The corresponding substrate of the existing technology is often a whole rectangle or circle, and the shape cannot be disassembled, resulting in different sizes of formed parts can only be upward compatible, and the larger substrate is selected, resulting in unnecessary waste; 2) In order to ensure the connection strength, the corresponding substrate of the existing technology often opens a hole in the substrate, passes the connecting screw through the hole, and connects to the equipment through a thread, making disassembly and assembly more inconvenient. In addition, due to the existence of the screw hole, there is no part that can be formed here, resulting in a reduction in the effective area of ​​the substrate and a waste of part of the formable area. Utility Model Content

[0003] In order to solve the above technical problems existing in the background technology, the utility model provides a modular base plate that is easy to quickly disassemble and assemble, reduces waste and improves work efficiency.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A modular substrate, characterized in that: the modular substrate includes a first substrate, a second substrate, and a fastener; the first substrate is arranged around the periphery of the second substrate; the fastener penetrates the first substrate and then extends into the second substrate; the upper surface of the first substrate and the upper surface of the second substrate are in the same plane.

[0006] The fasteners are side fasteners and / or bottom fasteners; the side fasteners penetrate from the side of the first substrate and extend into the side of the second substrate; the bottom fasteners penetrate from the bottom of the first substrate and extend into the bottom of the second substrate.

[0007] The side fasteners are top screws and / or three-in-one connectors; the bottom fasteners are three-in-one connectors and / or positioning locking connectors.

[0008] The above-mentioned positioning and locking connecting member includes a positioning and locking pin, a driving member and a linkage device; the positioning and locking pin passes through the bottom of the first substrate and extends into the bottom of the second substrate; the driving member is connected to the linkage device and acts on the positioning and locking pin through the linkage device; the positioning and locking pin tightens or loosens the first and second substrates.

[0009] The linkage device is one or more groups; when the linkage device is multiple groups, the number of the positioning and locking pins matches the number of the linkage devices, and the driving member acts on different positioning and locking pins respectively through multiple groups of linkage devices.

[0010] The linkage device comprises a pull rod; the head of the pull rod abuts against the side wall of the positioning and locking pull nail; the driving member and the pull rod are wedge-fitted; the driving member drives the pull rod to move along the axial direction of the pull rod.

[0011] The head of the pull rod is provided with a protrusion, and the side wall of the positioning and locking pull nail is provided with a groove matching the protrusion; the protrusion is in a block shape, a spherical shape or a cone shape as a whole.

[0012] The tail of the pull rod is connected with a telescopic part; the axial direction of the telescopic part is parallel to the axial direction of the pull rod; the telescopic part is a spring or an electric telescopic rod; when the telescopic part is a spring, the spring is connected to the pull rod through a spring fixing part.

[0013] The driving member includes a driving rod, which is a manually rotatable driving rod or an electrically rotatable driving rod; the power source of the electrically rotatable driving rod is a stepping motor or an electric telescopic cylinder.

[0014] The driving member further comprises a push rod, and the driving rod drives the pull rod to move along the axial direction of the pull rod through the push rod; the driving rod and the push rod are in a wedge-shaped fit.

[0015] The above-mentioned first substrate is a split structure or a combined structure; when the first substrate is a split structure, the first substrate includes at least two sub-substrates, and the cross-section of the sub-substrates is L-shaped as a whole; the sub-substrates are spliced ​​on the peripheral side of the second substrate to form a concave structure, and the second substrate is placed at the bottom of the concave structure; when the first substrate is a combined structure, the first substrate is a concave structure as a whole, and the second substrate is placed at the bottom of the concave structure.

[0016] The advantages of the utility model are:

[0017] The utility model provides a combined substrate, including a first substrate, a second substrate and a fastener; the first substrate is arranged around the circumference of the second substrate; the fastener penetrates the first substrate and then extends into the second substrate; the upper surface of the first substrate and the upper surface of the second substrate are in the same plane. When fixing is required, the first substrate is fixed to the circumference of the second substrate by the fastener; when disassembly is required, the second substrate and the first substrate are separated after the fastener is removed. The combined substrate provided by the utility model is formed on the basis of the second substrate (which can be used alone) by means of extension and by fastener fixation to form a detachable substrate with a larger forming width composed of the first substrate and the second substrate, without screw mounting holes, which greatly expands the available space of the second substrate. At the same time, the fastener penetrates the first substrate and then extends into the second substrate, and no bolt holes or screw holes are formed on the second substrate, thereby ensuring the effective area of ​​the substrate. The modular base plate provided by the utility model can be used for parts of different sizes, and can quickly realize the disassembly and switching of the embedded second base plate, reducing waste while improving efficiency; at the same time, the fixing or separation of the second base plate can be achieved by tightening or loosening one part, which is efficient, convenient, and can be automated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the combined base plate provided by the utility model;

[0019] Figure 2 This is a schematic diagram of the top view of the combined base plate provided by the utility model;

[0020] Figure 3 yes Figure 2 It is an enlarged schematic diagram of the BB-axis cross-sectional structure;

[0021] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of A;

[0022] Figure 5 yes Figure 3 It is the AA section view;

[0023] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of B;

[0024] Figure 7 This is a schematic diagram of the principle of the linkage device used in the present utility model during clamping;

[0025] Figure 8 This is a schematic diagram of the principle of the linkage device used in the utility model when it is separated;

[0026] in:

[0027] 1-first base plate; 2-second base plate; 3-positioning and locking pin; 4-driving rod; 5-push rod; 6-pull rod; 7-spring; 8-spring fixing piece; 9-blocking block. DETAILED DESCRIPTION

[0028] The present invention provides a combined substrate, comprising a first substrate 1, a second substrate 2, and a fastener; the first substrate 1 is arranged around the circumference of the second substrate 2; the fastener penetrates the first substrate 1 and then extends into the second substrate 2; the upper surface of the first substrate 1 and the upper surface of the second substrate 2 are in the same plane. The combined substrate provided by the present invention is formed on the basis of the second substrate 2 (which can be used alone) by means of extension and fixed by fasteners to form a detachable substrate with a larger forming width composed of the first substrate 1 and the second substrate 2, which greatly expands the available space of the second substrate 2. At the same time, the fastener penetrates the first substrate 1 and then extends into the second substrate 2, and no bolt holes or screw holes are formed on the second substrate 2, thereby ensuring the effective area of ​​the substrate.

[0029] In order to better fix the first substrate 1 and the second substrate 2 without leaving bolt holes or screw holes for connection on the second substrate 2, the utility model adopts a side fixing method and / or a bottom fixing method. That is, a side fastener and / or a bottom fastener method is adopted. Among them, the side fastener passes through the first substrate 1 from the side of the first substrate 1 and extends into the side of the second substrate 2, fixing the two into an integral structure; the bottom fastener passes through the first substrate 1 from the bottom of the first substrate 1 and extends into the second substrate 2. By using the side fasteners and the bottom fasteners alone or in combination, the first substrate 1 and the second substrate 2 can be fixed to form an integral structure. When the integral structure is not needed, the fasteners can be disassembled, and the first substrate 1 can be removed from the side of the second substrate 2, and the second substrate 2 can be used alone. This application does not limit the shape of the second substrate 1.

[0030] Exemplarily, the side fasteners may be top screws and / or three-in-one connectors. The three-in-one connector is a fixed connection structure between panels commonly used in the furniture field, including an eccentric wheel, an embedded nut, and a self-tapping rod. The three-in-one connector is a very mature commercial product, and its connection method, working principle, and working method are all prior art and will not be described in detail here. By combining the self-tapping rod and the eccentric wheel, the first base plate 1 and the second base plate 2 are fastened together to form a combined base plate. The bottom fastener is a three-in-one connector and / or a positioning locking connector.

[0031] As a preferred embodiment, the positioning and locking connector employed in the present invention includes a positioning and locking rivet 3, a driver, and a linkage mechanism. The positioning and locking rivet 3 extends from the bottom of the first substrate 1 and into the bottom of the second substrate 2. The driver is connected to the linkage mechanism and acts on the positioning and locking rivet 3 through the linkage mechanism, thereby tightening or loosening the first and second substrates 1 and 2. Because the positioning and locking rivet 3 extends through the first substrate 1 and into the second substrate 2, when the driver pushes the positioning and locking rivet 3 through the linkage mechanism, it squeezes the second substrate 2 through the positioning and locking rivet 3 and increases friction with the first substrate 1, thereby securing the two. When the first substrate 1 needs to be removed from the side of the second substrate 2, the linkage mechanism removes the squeezing force applied to the positioning and locking rivet 3. After the positioning and locking rivet 3 is pulled out, the first substrate 1 can be removed from the side of the second substrate 2.

[0032] The linkage device can be a single group or multiple groups. When the linkage device is a single group, there is only one positioning and locking pin 3. When the linkage device is multiple groups, the number of positioning and locking pins 3 matches the number of linkage devices. The driving member acts on different positioning and locking pins 3 through the multiple linkage devices, ultimately achieving the tightening or loosening of the first substrate 1 and the second substrate 2.

[0033] The linkage mechanism includes a pull rod 6; the head of the pull rod 6 abuts against the side wall of the positioning and locking pin 3. A driver forms a wedge-shaped fit between the pull rod 6 and the driver, which drives the pull rod 6 to move along the axis of the pull rod 6. The driver tightens or loosens the first and second substrates 1 and 2 via the pull rod 6 and the positioning and locking pin 3. The head of the pull rod 6 has a protrusion, and the side wall of the positioning and locking pin 3 has a groove that matches the protrusion. The protrusion is generally block-shaped, spherical, or conical.

[0034] At the same time, in order to facilitate the resetting of the pull rod 6, the linkage device adopted by the present invention also includes a telescopic member arranged at the tail of the pull rod 6, and the axial direction of the telescopic member is parallel to the axial direction of the pull rod 6; the telescopic member can be a spring 7 or an electric telescopic rod; when the telescopic member is a spring 7, the spring 7 is connected to the pull rod 6 through a spring fixing member 8. For example, taking the spring 7 as an example, the working method of the telescopic member is described in detail: when the linkage device is a group, one end of the spring 7 is fixed on the first substrate 1, and the other end is connected to the pull rod 6; the axial direction of the spring 7 is parallel to the axial direction of the pull rod 6, and is used to reset the pull rod 6. When the linkage device is a plurality of groups, for example, Figure 5 as well as Figure 6 As shown, it is assumed that the linkage device includes two pull rods 6 (the two pull rods 6 are on the same axis, move in opposite directions, and each pull rod acts independently on a positioning and locking pin 3) and a push rod 5. At this time, see Figure 6The spring 7 is placed between the two pull rods 6. At the same time, a spring fixing member 8 is provided on each pull rod 6 and along the circumference of the pull rod 6. The two ends of the spring 7 are respectively connected to the oppositely arranged pull rod 6 through the spring fixing member 8.

[0035] For example, the driving member can be a manually rotating driving rod or an electrically rotating driving rod; the power source of the electrically rotating driving rod is a stepping motor or an electrically driven telescopic rod. By rotating the driving rod 4, the driving rod 4 can be moved forward or backward, thereby achieving control of the linkage device. Based on the above, the driving member adopted by the utility model also includes a push rod 5, for example, see Figure 5 or Figure 6 The driving rod 4 drives the pull rod 6 to move along the axial direction of the pull rod 6 through the push rod 5; the driving rod 4 and the push rod 5 as well as the push rod 5 and the pull rod 6 are all wedge-shaped. Figure 7 , when along Figure 7 When the driving rod 4 is rotated in the rotation direction shown (clockwise for example), the driving rod 4 moves to the left along the axial direction of the driving rod 4 ( Figure 7 (The left side is shown in the figure). Because the driving rod 4 and the push rod 5 are in a wedge-shaped fit, the push rod 5 moves up or down respectively under the action of the driving rod 4. At the same time, because the push rod 5 and the pull rod 6 are also in a wedge-shaped fit, when the push rod 5 moves along its axial direction, it will inevitably push the pull rod 6 to move along the circumferential direction of the pull rod 6 (this movement direction is opposite to the movement direction of the driving rod, and the two are parallel to each other's axis). At this time, during the lateral movement of the pull rod 6, its head presses the positioning and locking pin 3, promoting the fastening of the second substrate 2 and the first substrate 1. Figure 8 , is a schematic diagram of the principle of removing the first substrate 1 from the side of the second substrate 2. At this time, along Figure 8 When the driving rod 4 is rotated in the rotation direction shown (exemplarily counterclockwise), the movement process of the driving rod 4, the movement process of the push rod 5 and the movement process of the pull rod 6 are all the same as Figure 7 The movement process shown is the opposite, until the pull rod 6 no longer presses the positioning and locking pin 3. After the positioning and locking pin 3 is pulled out, the first substrate 1 can be removed from the peripheral side of the second substrate 2.

[0036] The principle of the present utility model is as follows: a small-sized second substrate 2 is embedded inside the first substrate 1 to form a combined substrate as a whole. A driving rod 4, a push rod 5, and a pull rod 6 are arranged inside the first substrate 1. A spring 7 is also arranged between two adjacent pull rods 6. The second substrate 2 is installed with a positioning and locking pin 3. When fixing is required, the driving rod 4 pushes the push rod 5, and the push rod 5 pushes the pull rod 6. The end of the pull rod 6 is embedded in the positioning and locking pin 3 to form a self-locking structure, thereby fixing the first substrate 1 on the side of the second substrate 2. When disassembly is required, under the action of the spring 7, the pull rod 6, the push rod 5, and the driving rod 4 move in opposite directions, and the pull rod 6 and the positioning and locking pin 3 are separated, thereby separating the second substrate 2 and the first substrate 1. The present utility model realizes the combination and separation of the pull rod 6 and the positioning and locking pin 3 through the interaction of the driving rod 4, the push rod 5, the spring 7, and the pull rod 6.

[0037] It should be noted that, exemplarily, the first substrate 1 is a split structure or a combined structure; when the first substrate 1 is a split structure, the first substrate 1 includes at least two sub-substrates, and the cross-section of the sub-substrates is L-shaped as a whole; the sub-substrates are spliced ​​on the peripheral side of the second substrate 2 to form a concave structure, and the second substrate 2 is placed at the bottom of the concave structure; when the first substrate 1 is a combined structure, the first substrate 1 is a concave structure as a whole, and the second substrate 2 is placed at the bottom of the concave structure. The shape and structure of the second substrate 2 are not limited or restricted by the present invention. For example, see Figure 1 as well as Figure 2 The second substrate 2 is circular; the first substrate 1 is a combined structure and is square as a whole.

[0038] The following describes the combined base plate provided by the present invention in detail, taking multiple linkage devices as an example:

[0039] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 as well as Figure 6 The combined base plate provided by the present invention mainly comprises a first base plate 1, a second base plate 2, a positioning and locking pin 3, a driving rod 4, a push rod 5, a pull rod 6, a spring 7, a spring fixing member 8 and a blocking block 9. Figure 1 as well as Figure 5There are two drive rods 4, operable from both directions. The drive rod 4 has external threads and an internal hexagonal wrench slot, corresponding to an internal thread on the first base plate 1. Rotating the drive rod 4 with an internal hexagonal wrench causes the drive rod 4 to reciprocate along its circumference. Both ends of the push rod 5 are conical, forming a wedge-shaped fit with the contact end of the drive rod 4. The spring 7 is a tension spring; the spring retainer 8 has external threads, and the corresponding position on the pull rod 6 has an internal thread. The spring retainer 8 is fixed to the pull rod 6 via a threaded connection. The block 9 has external threads and an internal hexagonal wrench slot, corresponding to an internal thread on the base plate 1. Rotating the block 9 with an internal hexagonal wrench allows for installation and removal. There are four positioning and locking pins 3, each with a triangular groove around the circumference. There are four pull rods 6, each with a triangular protrusion at the end. The grooves of the positioning and locking pins 3 and the protrusions at the ends of the pull rods 6 have the same angle, preferably 10°, 20°, or 30°.

[0040] A small-sized second substrate 2 is embedded inside the first substrate 1 to form a combined substrate. A driving rod 4, a push rod 5, and a pull rod 6 are arranged inside the first substrate 1. A spring 7 is arranged between two adjacent pull rods 6. The spring 7 is connected to the pull rod 6 through a spring fixing member 8. The second substrate 2 is installed with a positioning locking pin 3 (which has penetrated the first substrate 1). The groove features of the positioning locking pin 3 (distributed around the periphery) match the groove features of the end of the pull rod 6, which can form a positioning lock self-locking, such as Figure 4 As shown. Figure 7 As shown, when tightening is required, Figure 7 The driving rod 4 is rotated in the direction shown, the driving rod 4 pushes the push rod 5, the push rod 5 pushes the pull rod 6, the end of the pull rod 6 is embedded in the positioning locking pin 3, forming a self-locking structure, and the first base plate 1 and the second base plate 2 form a combined base plate; see Figure 8 When separation is required, the driving rod 4 Figure 8 The first substrate 1 and the second substrate 2 are separated.

[0041] For example, through holes are arranged at the four corners of the first substrate 1 for fixing the first substrate 1. Threaded holes are evenly distributed on the side surfaces of the second substrate 2 for hoisting the second substrate 2.

Claims

1. A modular substrate, characterized in that: The combined substrate comprises a first substrate (1), a second substrate (2) and a fastener; the first substrate (1) is arranged around the circumference of the second substrate (2); the fastener penetrates the first substrate (1) and then extends into the second substrate (2); the upper surface of the first substrate (1) and the upper surface of the second substrate (2) are in the same plane.

2. The modular substrate according to claim 1, wherein: The fasteners are side fasteners and / or bottom fasteners; the side fasteners penetrate from the side of the first substrate (1) and extend into the side of the second substrate (2); the bottom fasteners penetrate from the bottom of the first substrate (1) and extend into the bottom of the second substrate (2); the side fasteners are top screws and / or three-in-one connectors; the bottom fasteners are three-in-one connectors and / or positioning locking connectors.

3. The modular substrate according to claim 2, wherein: The positioning locking connector comprises a positioning locking pin (3), a driving member and a linkage device; the positioning locking pin (3) passes through the bottom of the first substrate (1) and extends into the bottom of the second substrate (2); the driving member is connected to the linkage device and acts on the positioning locking pin (3) through the linkage device; the positioning locking pin (3) tightens or loosens the first substrate (1) and the second substrate (2).

4. The modular substrate according to claim 3, wherein: The linkage device is one or more groups; when the linkage device is multiple groups, the number of the positioning locking studs (3) matches the number of the linkage devices, and the driving member acts on different positioning locking studs (3) respectively through multiple groups of linkage devices.

5. The modular substrate according to claim 4, wherein: The linkage device includes a pull rod (6); the head of the pull rod (6) abuts against the side wall of the positioning and locking pin (3); the driving member and the pull rod (6) are wedge-shaped; the driving member drives the pull rod (6) to move along the axial direction of the pull rod (6).

6. The modular substrate according to claim 5, wherein: The head of the pull rod (6) is provided with a protrusion, and the side wall of the positioning and locking pull nail (3) is provided with a groove matching the protrusion; the protrusion is in a block shape, a spherical shape or a cone shape as a whole.

7. The modular substrate according to claim 6, wherein: The tail of the pull rod (6) is connected to a telescopic part; the axial direction of the telescopic part is parallel to the axial direction of the pull rod (6); the telescopic part is a spring (7) or an electric telescopic rod; when the telescopic part is a spring (7), the spring (7) is connected to the pull rod (6) through a spring fixing part (8).

8. The modular substrate according to any one of claims 3 to 7, characterized in that: The driving member comprises a driving rod (4), which is a manually rotatable driving rod or an electrically rotatable driving rod; the power source of the electrically rotatable driving rod is a stepping motor or an electric telescopic cylinder.

9. The modular substrate according to claim 8, wherein: The driving member further comprises a push rod (5), and the driving rod (4) drives the pull rod (6) to move along the axial direction of the pull rod (6) through the push rod (5); the driving rod (4) and the push rod (5) are wedge-shaped.

10. The modular substrate according to claim 9, wherein: The first substrate (1) is a split structure or a combined structure; when the first substrate (1) is a split structure, the first substrate (1) comprises at least two sub-substrates, and the cross-section of the sub-substrates is L-shaped as a whole; the sub-substrates are spliced ​​on the peripheral side of the second substrate (2) to form a concave structure, and the second substrate (2) is placed at the bottom of the concave structure; when the first substrate (1) is a combined structure, the first substrate (1) is a concave structure as a whole, and the second substrate (2) is placed at the bottom of the concave structure.

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