Material assembling mechanism

Abstract

The utility model provides a material assembling mechanism, relates to the technical field of material assembling, and provides a material assembling mechanism, which comprises a support, a first power source and a material mounting seat, the first power source and the material mounting seat are both mounted on the support, one end of the material mounting seat is provided with a material limiting hole, and the other end of the material mounting seat is provided with a second power source. The axis of the material limiting hole coincides with the axis of the material mounting base, the other end of the material mounting base is connected with the power output end of the first power source, and the power output end of the first power source drives the material mounting base to rotate with the center line of the material limiting hole as the axis. The material assembling mechanism provided by the utility model can improve the connection stability between the material and the to-be-assembled structure.

Description

Technical Field

[0001] The utility model relates to the technical field of material assembly, in particular to a material assembly mechanism. Background Art

[0002] When materials such as protective caps and injection needles are plugged in and assembled, an assembly mechanism is required to drive the materials to move toward the structure to be assembled to achieve the insertion of the materials. However, the existing assembly mechanism usually only drives the materials to move in a straight line through a power source, which results in a relatively single force applied to the materials, and it is impossible to give the materials a torque during disassembly and assembly, resulting in poor connection stability between the materials and the structure to be assembled. Utility Model Content

[0003] The purpose of the utility model is to provide a material assembly mechanism, which can increase the connection stability between the material and the structure to be assembled.

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

[0005] The utility model provides a material assembly mechanism, comprising a bracket, a first power source and a material mounting seat, wherein the first power source and the material mounting seat are both mounted on the bracket, one end of the material mounting seat is provided with a material limiting hole, the axis of the material limiting hole coincides with the axis of the material mounting seat, and the other end is connected to the power output end of the first power source, and the power output end of the first power source drives the material mounting seat to rotate with the center line of the material limiting hole as the axis.

[0006] Compared with the prior art, the material assembly mechanism provided by the utility model includes a first power source and a material mounting seat installed on a bracket. The material can be installed in a material limiting hole on the material mounting seat. The power output end of the first power source can drive the material mounting seat to rotate around the center line of the material limiting hole, thereby increasing the connection stability between the material and the structure to be assembled.

[0007] Furthermore, the material mounting seat includes a fixed seat, an elastic member and a movable seat, the movable seat is slidably matched with the fixed seat and the elastic member is arranged between the movable seat and the fixed seat, the elastic member has a compression margin along the sliding direction of the movable seat, and the movable seat has the material limiting hole.

[0008] When the material contacts the structure to be assembled, the elastic member is squeezed, which can prevent the material from transferring all the pressure to the structure to be assembled, avoid excessive pressure between the material and the structure to be assembled, and protect the material and the structure to be assembled.

[0009] Furthermore, the fixed seat has an insertion hole, one end of the movable seat includes an insertion shaft slidably inserted in the insertion hole, the elastic member is provided between the insertion shaft and the fixed seat, the elastic member is abutted against the limiting end face of the insertion shaft, and the limiting end face is arranged close to any end of the insertion shaft.

[0010] The fixed seat is provided with an insertion hole for installing the insertion shaft, which can realize the insertion of the fixed seat and the movable seat, and is more convenient for the fixed seat to limit the movable seat along its own radial direction to ensure the sliding stability of the two.

[0011] Furthermore, one end of the movable seat away from the fixed seat is detachably connected to a material clamping block, and the material clamping block has the material limiting hole.

[0012] Since the material clamping block adopts a detachable connection method, the user can replace the material clamping blocks of different sizes according to the size of the outer diameter of the material. The aperture sizes of the material limiting holes are different between the material clamping blocks of different sizes, which is convenient for the mobile seat to install materials of different sizes and has a wider applicability.

[0013] Furthermore, an end of the movable seat away from the fixed seat is provided with an extension hole;

[0014] The material clamping block is installed in the extension hole, and the axial length of the material clamping block is smaller than the length of the extension hole;

[0015] Alternatively, the material clamping block is installed on the side of the extension hole.

[0016] The above arrangement allows most of the material structure to extend into the extension hole, with only the head exposed through the material limiting hole, which facilitates the installation of the material clamping block and can adapt to materials of more lengths.

[0017] Furthermore, a protrusion extending along the sliding direction of the movable seat is provided in the material limiting hole, or a material clamping sleeve is provided in the material limiting hole.

[0018] Among them, the protrusion can be engaged with the groove on the outer wall of the material, thereby limiting the position of the material along the circumference of the material, ensuring that the material can rotate synchronously with the material clamping block; when the material passes through the material clamping sleeve, the material clamping sleeve is squeezed and deformed, and can clamp the material to achieve the limitation of the axial and circumferential position of the material.

[0019] Furthermore, the first power source includes a motor and a transmission structure installed on the bracket, and the transmission structure is connected to the motor and the fixing seat respectively.

[0020] The transmission structure can transmit the power of the motor to the fixed seat, driving the fixed seat to rotate with the center line of the material limiting hole as the axis, which is convenient for the installation of the first power source.

[0021] Furthermore, the first power source and the material mounting seat are both configured in plurality, and the fixing seat of each material mounting seat is connected to the transmission structure in each first power source in a one-to-one correspondence;

[0022] The material mounting seats are arranged side by side along a first straight line, and the two motors corresponding to any two adjacent material mounting seats are arranged on both sides of the first straight line.

[0023] The above arrangement can make the material mounting seats more compact. When in use, the first power sources can act synchronously and drive the material mounting seats to rotate through the corresponding transmission structures, thereby realizing the simultaneous assembly of multiple materials and improving assembly efficiency.

[0024] Furthermore, the transmission structure includes a first gear, a second gear and a third gear, the first gear is connected to the power output end of the motor and meshes with the second gear, the second gear is rotationally connected to the bracket, and the third gear meshes with the second gear and is connected to the fixed base.

[0025] When in use, the power output end of the motor drives the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the third gear to rotate. Since the third gear is fixedly connected to the fixed seat, the third gear drives the fixed seat to rotate, thereby realizing the rotation of the mobile seat and the material thereon. The above-mentioned second gear can make a certain distance between the power output end of the motor and the power input end of the fixed seat, and the selection of the position of the motor and the fixed seat on the bracket can be more flexible.

[0026] Furthermore, it also includes a second power source, a power output end of the second power source is connected to the bracket, and the power output end of the second power source has a freedom of movement parallel to the sliding direction of the moving seat.

[0027] The provision of the second power source can realize the lateral movement of the bracket, enable the material to move close to the structure to be assembled, and ensure the firmness of the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A three-dimensional schematic diagram of a partial structure of a material assembly mechanism provided in an embodiment of the utility model Figure 1 ;

[0030] Figure 2 A schematic diagram of the three-dimensional structure of the material mounting seat provided in the first embodiment of the utility model when installing materials;

[0031] Figure 3 A cross-sectional view of a material mounting seat provided in Embodiment 1 of the present utility model;

[0032] Figure 4 A schematic diagram of the three-dimensional structure of the material installation seat provided in the second embodiment of the utility model when installing materials;

[0033] Figure 5 A cross-sectional view of a material installation seat provided in Embodiment 2 of the present utility model when installing a material;

[0034] Figure 6 A three-dimensional schematic diagram of a partial structure of a material assembly mechanism provided in an embodiment of the utility model Figure 2 ;

[0035] Figure 7 A schematic diagram of the three-dimensional structure of a material assembly mechanism provided in an embodiment of the utility model.

[0036] Icons: 1-bracket; 2-first power source; 21-motor; 22-transmission structure; 221-first gear; 222-second gear; 223-third gear; 3-fixed seat; 31-through slot; 4-elastic member; 5-movable seat; 51-insertion shaft; 511-limiting end face; 512-connecting hole; 52-material clamping block; 521-material limiting hole; 522-protrusion; 53-extension hole; 54-material clamping sleeve; 56-extension shaft; 6-first straight line; 7-second power source; 8-material. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0041] The embodiment of the utility model is to provide a material assembly mechanism, such as Figures 1 to 5 As shown, it includes a bracket 1, a first power source 2 and a material mounting seat. The first power source 2 and the material mounting seat are both installed on the bracket 1. One end of the material mounting seat has a material limiting hole 521. The axis of the material limiting hole 521 coincides with the axis of the material mounting seat. The other end of the material mounting seat is connected to the power output end of the first power source 2. The power output end of the first power source 2 drives the material mounting seat to rotate with the center line of the material limiting hole as the axis.

[0042] When using, Figure 2 and Figure 4 As shown, the material 8 can be installed at the material limiting hole 521, and the power output end of the first power source 2 drives the animal material mounting seat to rotate with the center line of the material limiting hole 521 as the axis. Driven by the linear motion mechanism, the material mounting seat drives the material to perform a straight insertion action while also driving the material to perform a rotational motion, which can increase the connection stability between the material and the structure to be assembled.

[0043] The structure of the material mounting seat is described in detail below:

[0044] In some embodiments, Figures 2 to 5As shown, in order to minimize the pressure applied by the material 8 to the structure to be assembled during the process of the material mounting seat driving the material 8 for assembly, an elastic member 4 is provided in the material mounting seat. The elastic member 4 can undergo elastic deformation in a direction parallel to the center line of the material limiting hole 521. When the material 8 contacts the structure to be assembled, the elastic member 4 is squeezed, thereby preventing the material 8 from transferring all the pressure to the structure to be assembled, avoiding excessive pressure between the material 8 and the structure to be assembled, and protecting the material 8 and the structure to be assembled.

[0045] The elastic member 4 may be a spring or an elastic sheet.

[0046] Specifically, Figures 2 to 5 As shown, the material mounting seat may include a fixed seat 3, an elastic member 4 and a movable seat 5. The fixed seat 3 is connected to the power output end of the first power source 2. One end of the movable seat 5 slides with the fixed seat 3 in a direction parallel to the center line of the material limiting hole 521 and an elastic member 4 is provided between the fixed seat 3. The elastic member 4 has a compression margin along the sliding direction of the movable seat 5. The other end of the movable seat 5 has a material limiting hole 521.

[0047] When installing materials that need to be rotated and screwed in, after the material 8 in the material limiting hole 521 contacts the structure to be assembled, the movable seat 5 compresses the elastic part 4 to play a buffering role. At the same time, the power output end of the first power source 2 drives the fixed seat 3 to rotate around the center line of the material limiting hole 521 as the axis. Since the movable seat 5 and the fixed seat 3 slide together, the movable seat 5 can rotate with the fixed seat 3 to realize the assembly of the material 8.

[0048] For materials that need to be directly inserted and rotated to be connected and fixed, the above method can also be used for installation. The specific process is: under the drive of the linear motion mechanism, the material 8 in the material limit hole 521 gradually approaches the structure to be assembled. After the material 8 contacts the structure to be assembled, the moving seat 5 compresses the elastic member 4. At the same time, the power output end of the first power source 2 drives the fixed seat 3 to rotate with the center line of the material limit hole 521 as the axis, and the material on the moving seat 5 rotates relative to the structure to be assembled, so that the material and the structure to be assembled are fixed by clamping, and the connection stability between the material and the structure to be assembled is ensured on the basis of realizing automatic assembly.

[0049] Among them, the sliding cooperation between the movable seat 5 and the fixed seat 3 can be achieved through a slider and a slide groove structure. The movable seat 5 can be convexly provided with a slider, and the fixed seat 3 can be concavely provided with a slide groove that slides with the slider. The fixed seat 3 can also be convexly provided with a slider, and the movable seat 5 can be concavely provided with a slide groove that slides with the slider.

[0050] In at least one embodiment, a slider is convexly provided on the fixed seat 3, and a slide groove for slidingly cooperating with the slider is concavely provided on the movable seat 5. The slider can be configured in multiple numbers, and the multiple sliders are evenly distributed around the axis of the fixed seat.

[0051] In some embodiments, Figure 3 and Figure 5 As shown, the fixed seat 3 has an insertion hole extending along the center line parallel to the material limiting hole 521, and one end of the movable seat 5 includes an insertion shaft 51 that is slidably inserted into the insertion hole along the direction parallel to the center line of the material limiting hole 521. An elastic member 4 is provided between the insertion shaft 51 and the fixed seat 3, and the elastic member 4 is against the limiting end face 511 of the insertion shaft 51.

[0052] When the material 8 on the movable seat 5 contacts the structure to be assembled, the insertion shaft 51 on the movable seat 5 moves relative to the fixed seat 3, the limiting end surface 511 squeezes the elastic member 4, and the other end of the elastic member 4 is limited by the fixed seat 3 or other structures, and undergoes elastic deformation.

[0053] The fixed seat 3 is provided with an insertion hole, which can realize the insertion of the fixed seat 3 and the movable seat 5, and is more convenient for the fixed seat 3 to limit the movable seat 5 along its own radial direction to ensure the sliding stability of the two.

[0054] When the material 8 on the moving seat 5 is not in contact with the structure to be assembled, the elastic member 4 can be in a naturally extended state or in a compressed state.

[0055] In at least one embodiment, the elastic member 4 is in a compressed state to give the moving seat 5 a pre-pressure.

[0056] Under the effect of the above-mentioned pre-pressure, in order to prevent the movable seat 5 from popping out from the fixed seat 3, a limit pin is provided between the movable seat 5 and the fixed seat 3. Figure 3 and Figure 5 As shown, a connecting hole 512 is provided on the insertion shaft 51, and a through slot 31 is provided at the fixed seat 3 corresponding to the connecting hole 512. The through slot 31 extends in a direction parallel to the moving direction of the movable seat 5, and the stop pin passes through the through slot 31 and is inserted in the connecting hole 512. When the material 8 on the movable seat 5 is not in contact with the structure to be assembled, under the elastic force of the elastic member 4, the stop pin abuts against one end of the through slot 31 to prevent the movable seat 5 from falling off the fixed seat 3; when the material 8 on the movable seat 5 is in contact with the structure to be assembled, the movable seat 5 overcomes the elastic force of the elastic member 4 and moves relative to the fixed seat 3, and at the same time, the stop pin moves relative to the through slot 31.

[0057] The limiting end surface 511 can be located at any position of the insertion shaft 51 along the axial direction of the insertion shaft 51 .

[0058] According to the different positions of the limiting end surface 511 and the different structures of the end of the movable seat 5 away from the fixed seat 3, the present invention can be specifically divided into the following two embodiments:

[0059] Embodiment 1

[0060] In this embodiment 1, if Figure 3 As shown, the limiting end surface 511 is located at the right end of the insertion shaft 51 , one end of the elastic member 4 abuts against the limiting end surface 511 , and the other end abuts against the fixing member at the right end of the third gear 223 .

[0061] In this embodiment 1, if Figure 3 As shown, one end of the movable seat 5 away from the fixed seat 3 is detachably connected to a material clamping block 52 , and the material clamping block 52 has a material limiting hole 521 .

[0062] In the above embodiment, since the material clamping block 52 adopts a detachable connection method, the user can replace the material clamping blocks 52 of different sizes according to the size of the outer diameter of the material 8. The aperture sizes of the material limiting holes 521 are different between the material clamping blocks 52 of different sizes, which is convenient for the mobile seat 5 to install materials of different sizes and types, and has a wider applicability.

[0063] There may be a variety of structures for realizing the detachable connection of the material clamping block 52, for example: the material clamping block 52 is threadedly connected to the end of the movable seat 5 away from the fixed seat 3, or the material clamping block 52 is interference fit to the end of the movable seat 5 away from the fixed seat 3, or the material clamping block 52 is pinned to the end of the movable seat 5 away from the fixed seat 3, and so on.

[0064] Since part of the material 8 has a plurality of grooves distributed along its circumference, each groove extends parallel to the axial direction of the material, in order to strengthen the material clamping block 52 to limit the circumferential position of the above-mentioned type of material 8, in the first embodiment, as shown in FIG. Figure 3 As shown, a protrusion 522 extending along the sliding direction of the movable seat 5 is provided in the material limiting hole 521, and the protrusion 522 can be engaged with the groove on the outer wall of the material 8, thereby limiting the position of the material 8 along the circumference of the material 8, ensuring that the material 8 can rotate synchronously with the material clamping block 52.

[0065] Specifically, in order to minimize the axial dimension of the material clamping block 52, it is convenient to install the material 8 with a larger axial dimension at the end of the movable seat 5 away from the fixed seat 3, such as Figure 3 As shown, the end portion of the movable seat 5 is provided with an extension hole 53 , and the material clamping block 52 is installed in the extension hole 53 , and the axial length of the material clamping block 52 is smaller than the length of the extension hole 53 .

[0066] The above arrangement allows most of the structure of the material 8 to extend into the extension hole 53, with only the head exposed through the material limiting hole 521, which facilitates the installation of the material clamping block 52 and can accommodate materials 8 of more lengths.

[0067] Embodiment 2

[0068] In the second embodiment, Figure 5 As shown, the limiting end surface 511 is located at the left end of the insertion shaft 51 , one end of the elastic member 4 abuts against the limiting end surface 511 , and the other end abuts against the inner end surface of the fixing seat 3 .

[0069] In the second embodiment, Figure 5 As shown, the end of the movable seat 5 away from the fixed seat 3 is also detachably connected with a material clamping block 52, and the material clamping block 52 has a material limiting hole 521. The difference from the first embodiment is that the material clamping block 52 is installed on the end surface of the movable seat 5 away from the fixed seat 3. When the end of the movable seat 5 away from the fixed seat 3 is provided with an extension hole 53, the material clamping block 52 is located on the side of the extension hole 53.

[0070] Specifically, the material clamping block 52 can be clamped on the end surface of the movable seat 5 away from the fixed seat 3 .

[0071] The difference between the above-mentioned embodiment 2 and embodiment 1 is that: Figure 5 As shown, the material limiting hole 521 is not provided with a protrusion 522 , but is provided with a material clamping sleeve 54 .

[0072] The material clamping sleeve 54 can be made of materials with a large friction coefficient and a certain elasticity, such as rubber and silicone. The inner diameter of the material clamping sleeve 54 can be slightly smaller than the outer diameter of the material 8. When the material 8 passes through the material clamping sleeve 54, the material clamping sleeve 54 is squeezed and deformed, thereby clamping the material 8 to achieve the limitation of the axial and circumferential position of the material.

[0073] It should be noted that the limitation of the axial position of the material can also be achieved by the abutment between the end surface of the material itself and the end surface of the material clamping sleeve 54 .

[0074] In some embodiments, Figure 3 and Figure 5 As shown, to facilitate the processing and assembly of the movable seat 5, one end of the movable seat 5 extending from the fixed seat 3 includes an extension shaft 56 connected to the insertion shaft 51. The insertion shaft 51 and the extension shaft 56 are detachably connected, and the connecting piece for realizing the detachable connection between the two can be a screw or a pin.

[0075] like Figure 3 As shown, the extension shaft 56 is provided with an extension hole 53 , and the extension hole 53 can extend to an end of the insertion shaft 51 close to the extension shaft 56 .

[0076] The structure of the first power source 2 is described in detail below:

[0077] In some embodiments, Figure 6 As shown, the first power source 2 includes a motor 21 and a transmission structure 22 installed on the bracket 1. The transmission structure 22 is connected to the motor 21 and the fixed seat 3 respectively to transmit the power of the motor 21 to the fixed seat 3, driving the fixed seat 3 to rotate with the center line of the material limiting hole 521 as the axis.

[0078] In order to enable the material assembly mechanism to assemble multiple materials 8 at the same time, the first power source 2 and the material mounting seat are configured in multiples, and the fixing seat 3 of each material mounting seat is connected to the transmission structure 22 in each first power source 2 in a one-to-one correspondence.

[0079] When in use, each first power source 2 can act synchronously, and jointly drive each material mounting seat to rotate through the corresponding transmission structure 22, so as to realize the simultaneous assembly of multiple materials 8 and improve the assembly efficiency.

[0080] It should be noted that any structure that can transmit the power of the motor 21 to the fixed seat 3 and drive the fixed seat 3 to rotate with the center line of the material limiting hole 521 as the axis can be the transmission structure 22 mentioned in the above embodiment. For example, the transmission structure 22 can include a gear set, or the transmission structure 22 includes a pulley and a belt, or the transmission structure 22 includes a sprocket and a chain, etc.

[0081] The transmission structure 22 needs to occupy a certain space for power transmission, and in order to make the arrangement between the various material mounting seats more compact, in some embodiments, such as Figure 1 As shown, the material mounting seats are arranged side by side along the first straight line 6 , and the two motors 21 corresponding to any two adjacent material mounting seats are arranged on both sides of the first straight line 6 .

[0082] The above “two motors 21 corresponding to any two adjacent material mounting seats are distributed on both sides of the first straight line 6” is explained as follows: Figure 1 As shown, along the extension direction of the first straight line 6 from the lower left to the upper right, the motor 21 corresponding to the first material mounting seat is located below the horizontal plane where the first straight line 6 is located, the motor 21 corresponding to the second material mounting seat is located above the horizontal plane where the first straight line 6 is located, the motor 21 corresponding to the third material mounting seat is located below the horizontal plane where the first straight line 6 is located, the motor 21 corresponding to the fourth material mounting seat is located above the horizontal plane where the first straight line 6 is located, and so on. Figure 6The above arrangement allows multiple transmission structures 22 to be evenly distributed on the upper and lower sides of the horizontal plane where the first straight line 6 is located, and the structure between the transmission structures 22 is compact enough. Compared with the individual motors 21 arranged at intervals in a direction parallel to the first straight line 6, the volume occupied by the material assembly mechanism can be effectively reduced.

[0083] In some embodiments, the transmission structure 22 may adopt a gear transmission mechanism. Compared with a belt transmission mechanism and a chain transmission mechanism, a gear transmission mechanism has higher transmission accuracy and is more reliable.

[0084] The transmission structure 22 may include two, three, four, five or other multiple gears, and the number of gears may be adjusted according to factors such as the required transmission ratio.

[0085] In at least one embodiment, Figure 6 As shown, the transmission structure 22 includes a first gear 221, a second gear 222 and a third gear 223. The first gear 221 is fixedly connected to the power output end of the motor 21 and meshes with the second gear 222. The second gear 222 is rotationally connected to the bracket 1. The third gear 223 meshes with the second gear 222 and is fixedly connected to the fixing seat 3.

[0086] When in use, the power output end of the motor 21 drives the first gear 221 to rotate, the first gear 221 drives the second gear 222 to rotate, and the second gear 222 drives the third gear 223 to rotate. Since the third gear 223 is fixedly connected to the fixed seat 3, the third gear 223 will drive the fixed seat 3 to rotate, thereby realizing the rotation of the movable seat 5 and the material 8 thereon.

[0087] The second gear 222 can ensure a certain distance between the power output end of the motor 21 and the power input end of the fixing seat 3, so that the position selection of the motor 21 and the fixing seat 3 on the bracket 1 can be more flexible.

[0088] Specifically, a perpendicular line between the axis of the first gear 221 and the axis of the second gear 222 forms an obtuse angle with a perpendicular line between the axis of the third gear 223 and the axis of the second gear 222. Compared with the angle of 180°, the above arrangement can make the second gear 222 avoid a certain distance obliquely upward or downward, thereby avoiding interference between the second gear 222 and the third gear 223 in the adjacent transmission structure 22.

[0089] In some embodiments, Figure 7 As shown, the material assembly mechanism further includes a second power source 7 , a power output end of the second power source 7 is connected to the bracket 1 , and the power output end of the second power source 7 drives the bracket 1 to move in a direction parallel to the sliding direction of the moving seat 5 .

[0090] The second power source 7 can realize the lateral movement of the bracket 1 and the movement of the material 8 close to the structure to be assembled. The second power source 7 can be a linear motion mechanism such as a pneumatic cylinder, a hydraulic cylinder, a linear motor, etc. Of course, a rotary motor or the like can also be used to perform a rotary motion structure and a transmission component. The transmission component can be a connecting rod component, a crank slider component, etc. The transmission component can convert the rotary motion into a linear motion.

[0091] Finally, it should be noted that the above-mentioned materials can be but are not limited to protective caps, injection needle caps, etc.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A material assembly mechanism, characterized in that: The invention comprises a bracket (1), a first power source (2) and a material mounting seat, wherein the first power source (2) and the material mounting seat are both mounted on the bracket (1), one end of the material mounting seat is provided with a material limiting hole (521), the center line of the material limiting hole (521) coincides with the axis of the material mounting seat, and the other end of the material mounting seat is connected to the power output end of the first power source (2), and the power output end of the first power source (2) drives the material mounting seat to rotate with the center line of the material limiting hole (521) as the axis.

2. The material assembly mechanism according to claim 1, characterized in that: The material mounting seat comprises a fixed seat (3), an elastic member (4) and a movable seat (5); the movable seat (5) is slidably matched with the fixed seat (3) and the elastic member (4) is arranged between the movable seat (5) and the fixed seat (3); the elastic member (4) has a compression margin along the sliding direction of the movable seat (5); and the movable seat (5) has the material limiting hole (521).

3. The material assembly mechanism according to claim 2, characterized in that: The fixed seat (3) has an insertion hole, one end of the movable seat (5) includes an insertion shaft (51) slidably inserted into the insertion hole, the elastic member (4) is provided between the insertion shaft (51) and the fixed seat (3), the elastic member (4) abuts against a limiting end face (511) of the insertion shaft (51), and the limiting end face (511) is provided close to any end of the insertion shaft (51).

4. The material assembly mechanism according to claim 2, characterized in that: One end of the movable seat (5) away from the fixed seat (3) is detachably connected to a material clamping block (52), and the material clamping block (52) has the material limiting hole (521).

5. The material assembly mechanism according to claim 4, characterized in that: An extension hole (53) is provided at one end of the movable seat (5) away from the fixed seat (3); The material clamping block (52) is installed in the extension hole (53), and the axial length of the material clamping block (52) is smaller than the length of the extension hole (53); Alternatively, the material clamping block (52) is installed on the side of the extension hole (53).

6. The material assembly mechanism according to claim 4, characterized in that: A protrusion (522) extending along the sliding direction of the movable seat (5) is provided in the material limiting hole (521), or a material clamping sleeve (54) is provided in the material limiting hole (521).

7. The material assembly mechanism according to claim 2, characterized in that: The first power source (2) comprises a motor (21) and a transmission structure (22) mounted on the bracket (1); the transmission structure (22) is respectively connected to the motor (21) and the fixing seat (3).

8. The material assembly mechanism according to claim 7, characterized in that: The first power source (2) and the material mounting seat are both configured in plurality, and the fixing seat (3) of each material mounting seat is connected to the transmission structure (22) in each first power source (2) in a one-to-one correspondence; The material mounting seats are arranged side by side along the first straight line (6), and the two motors (21) corresponding to any two adjacent material mounting seats are arranged on both sides of the first straight line (6).

9. The material assembly mechanism according to claim 8, characterized in that: The transmission structure (22) comprises a first gear (221), a second gear (222) and a third gear (223); the first gear (221) is connected to the power output end of the motor (21) and meshes with the second gear (222); the second gear (222) is rotationally connected to the bracket (1); and the third gear (223) meshes with the second gear (222) and is connected to the fixing seat (3).

10. The material assembly mechanism according to claim 2, characterized in that: It also comprises a second power source (7), the power output end of the second power source (7) is connected to the bracket (1), and the power output end of the second power source (7) has a degree of freedom of movement parallel to the sliding direction of the movable seat (5).

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