Dispensing device

Abstract

The utility model discloses a dispensing device which comprises a clamping seat, a moving seat and a dispensing assembly, the dispensing assembly comprises a glue storage barrel and a dispensing needle head, the moving seat comprises a seat body and a positioning piece fixedly arranged below the seat body, the positioning piece is provided with a positioning hole penetrating and extending in the vertical direction, and the clamping seat is arranged on the moving seat. The glue storage barrel is detachably installed on the base body, the glue dispensing needle is coaxially arranged in the positioning hole in a penetrating mode in a matched mode, and the glue dispensing end of the glue dispensing needle extends out of the lower portion of the positioning hole. When the adhesive dispensing assembly is replaced every time, the adhesive dispensing needle head is directly inserted into the positioning hole of the positioning piece from top to bottom, so that the adhesive dispensing needle head can be positioned and can extend in the vertical direction, meanwhile, after the adhesive dispensing assembly is replaced, the position of the adhesive dispensing needle head does not need to be aligned and calibrated again, and the adhesive dispensing efficiency is improved. And the calibration and adjustment time is greatly saved, so that the precision and efficiency of dispensing processing are improved.

Description

Technical Field

[0001] This utility model relates to a dispensing device. Background Technology

[0002] An ultrasonic scalpel (also known as an ultrasonic scalpel or ultrasonic hemostatic scalpel) is an advanced medical device widely used in surgical procedures. The ultrasonic scalpel not only cuts tissue but also has a coagulation function. During the cutting process, the high-frequency vibration of the scalpel tip can close blood vessels, thereby reducing bleeding.

[0003] The transducer assembly is one of the core components of an ultrasonic scalpel, mainly consisting of a transducer with an amplitude transformer and a transducer housing. During the assembly of this transducer assembly, adhesive dispensing is typically required to seal or bond the various housings and components. However, currently there is no dedicated device or equipment to assist with this operation; all dispensing is done manually, leading to uneven dispensing and low efficiency. Simply using a 3-axis motion mechanism to drive the dispensing head presents several problems: firstly, after the adhesive is used up and the cartridge is replaced, the verticality of the dispensing needle is difficult to maintain, requiring frequent adjustments; secondly, after reinstalling the cartridge, the actual position of the dispensing needle on the 3-axis drive mechanism may have shifted, requiring readjustment.

[0004] Therefore, it is necessary to develop a low-cost and easy-to-operate dispensing device to assist in the dispensing operation during the assembly process of transducer components. Utility Model Content

[0005] The purpose of this invention is to provide a dispensing device to solve one or more problems of the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A dispensing device, the dispensing device comprising:

[0008] A clamping base, which is fixed on the machine base for clamping and fixing the workpiece to be processed;

[0009] A movable base, which is driven by a drive mechanism and is capable of moving relative to the machine base;

[0010] A dispensing assembly includes a glue reservoir and a dispensing needle. The dispensing needle has a connecting end and a dispensing end located at opposite ends along its length. The connecting end is fixedly connected to one end of the glue reservoir, so that the inner cavity of the dispensing needle is connected to the glue reservoir cavity of the glue reservoir.

[0011] The movable seat includes a seat body and a positioning member fixedly disposed below the seat body. The positioning member has a positioning hole extending through in a vertical direction. The glue reservoir is detachably mounted on the seat body. The glue dispensing needle is coaxially fitted through the positioning hole, and the glue dispensing end extends out below the positioning hole.

[0012] Preferably, the positioning element is detachably connected to the base, and the dispensing needle is clearance-fitted with the positioning hole.

[0013] Furthermore, the positioning member includes a head and a rod, the head having a receiving cavity, the positioning hole extending through and communicating with the receiving cavity along the axial direction of the rod; the glue storage cylinder has a glue dispensing nozzle, the connecting end being connected to the glue dispensing nozzle, and the connecting end and the glue dispensing nozzle being located together in the receiving cavity.

[0014] In some embodiments, the dispensing needle includes a needle shaft and a connecting end, the outer diameter of the connecting end being larger than the outer diameter of the needle shaft, the connecting end being connected to the dispensing nozzle, the needle shaft being inserted axially into the positioning hole, and the length of the needle shaft being greater than the length of the rod portion.

[0015] Preferably, the clamping seat includes a fixed seat fixedly disposed on the machine base and a connecting seat movably connected to the fixed seat. The fixed seat is provided with a first clamping part, and the connecting seat is provided with a second clamping part. When the fixed seat and the connecting seat approach each other, the first clamping part and the second clamping part are combined to form a clamping structure capable of clamping the workpiece to be processed.

[0016] In some embodiments, both the first clamping part and the second clamping part are arc-shaped grooves. When the first clamping part and the second clamping part are assembled together, the clamping structure formed is a through hole or stepped hole extending in a vertical direction. The arc of the first clamping part is a superior arc, and the arc of the second clamping part is a inferior arc.

[0017] In some embodiments, the fixing base is further provided with a positioning structure for cooperating with the workpiece to be processed. The positioning structure is located within the clamping area formed by the clamping structure or outside the clamping area.

[0018] In some embodiments, one end of the connecting seat is rotatably connected to the fixed seat about a first center line extending in the vertical direction, and a locking component is provided between the other end of the connecting seat and the fixed seat. When the connecting seat and the fixed seat are connected by the locking component, the first clamping part and the second clamping part are spliced ​​together in the horizontal direction to form the clamping structure.

[0019] In some embodiments, the locking assembly includes a locking member rotatably connected to the connecting seat about a second centerline extending in a vertical direction, the locking member having a locking end offset from the second centerline, and the fixing seat having a mating portion capable of hooking and fixing with the locking end. The locking assembly further includes an elastic member that provides the force required for the locking member to rotate so that the locking end moves toward the mating portion.

[0020] In some embodiments, a pressing head is also fixedly provided on the movable seat, the pressing head and the positioning member are spaced apart from each other, and the pressing head and the positioning member do not contact the workpiece to be processed at the same time; wherein, the pressing head includes a connecting rod and a pressing head disposed at the lower part of the connecting rod, and the pressing head is made of a soft material.

[0021] In some embodiments, the pressing head is frustoconical.

[0022] Due to the application of the above technical solution, this utility model has the following advantages: In the dispensing device provided by this utility model, each time the dispensing component is replaced, the dispensing needle is directly inserted into the positioning hole of the positioning component from top to bottom, which can realize the positioning of the dispensing needle and ensure that the dispensing needle can extend in the vertical direction. At the same time, after the dispensing component is replaced, there is no need to readjust and calibrate the position of the dispensing needle on the device, which greatly saves the calibration and adjustment time, thereby improving the accuracy and efficiency of dispensing processing.

[0023] Furthermore, the dispensing device provided by this utility model utilizes the cooperation between the fixed seat and the connecting seat to clamp the workpiece to be processed, enabling rapid clamping and positioning. During batch dispensing operations, there is no need to repeatedly adjust the operating program of the three-axis drive mechanism to adjust the movement path of the moving seat, making the dispensing operation faster and more convenient. Using this dispensing device for dispensing certain components in a transducer assembly significantly makes the assembly of the transducer assembly more convenient and faster, greatly improving assembly accuracy and efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the dispensing device according to Embodiment 1 of this utility model;

[0026] Figure 2 for Figure 1 A schematic diagram of the side view structure;

[0027] Figure 3 For along Figure 2 Schematic diagram of the cross-sectional structure along the middle AA direction;

[0028] Figure 4 for Figure 1 A schematic diagram of the connecting seat in the dispensing device after it is opened relative to the fixed seat;

[0029] Figure 5 for Figure 1 A schematic diagram of a dispensing device used for dispensing transducer components;

[0030] Figure 6 for Figure 5 A schematic diagram of the transducer assembly in the diagram;

[0031] Figure 7 This is a schematic diagram of the overall structure of the dispensing device according to Embodiment 2 of the utility model;

[0032] Figure 8 for Figure 7 A schematic diagram of a dispensing device used for dispensing transducer components;

[0033] Figure 9 In order to be in Figure 8 A schematic diagram of the connecting plate for installing the transducer assembly on the basis of the above.

[0034] Figure 10 for Figure 8 The transducer assembly in;

[0035] Figure 11 for Figure 9 The transducer assembly in;

[0036] In the attached diagrams above:

[0037] 1. Fixed base; 11. First clamping part; 11a. First stepped surface; 12. Positioning boss; 13. Mating part; 14. Positioning block;

[0038] 2. Connecting seat; 21. Second clamping part; 21a. Second step surface;

[0039] 3. Locking component; 31. Locking stop end;

[0040] 4. Movable seat; 41. Seat body; 411. Vertical plate; 412. Upper horizontal plate; 413. Lower horizontal plate; 42. Positioning component; 421. Head; 422. Rod; 423. Receiving cavity; 43. Pressing head; 431. Connecting rod; 432. Pressing head;

[0041] 5. Dispensing assembly; 51. Glue reservoir; 511. Glue nozzle; 52. Dispensing needle; 521. Connecting end; 522. Needle bar; 52a. Connecting end; 52b. Dispensing end;

[0042] 10. Workpiece to be processed (transducer assembly); 101. First housing; 101a. First positioning groove; 101b. First limiting surface; 101c. First adhesive surface to be applied; 102. Second housing; 102a. Second positioning groove; 102b. Second limiting surface; 102c. Second adhesive surface to be applied; 103. Connecting plate. Detailed Implementation

[0043] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] In this document, the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings of the dispensing device. They are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] Example 1

[0046] See Figures 1 to 5 The dispensing device shown includes a clamping seat, a movable seat 4, and a dispensing assembly 5. The clamping seat is mounted on a machine base and is used to clamp and fix the workpiece 10 to be processed. The movable seat 4 is driven by a drive mechanism and can move relative to the machine base. The drive mechanism can be a motor, cylinder, or other type of drive device, used to control the movement of the movable seat 4 in the horizontal and / or vertical directions. In this embodiment, the movable seat 4 is driven by a three-axis drive mechanism and can realize translational movement in the X, Y, and Z directions. The dispensing assembly 5 includes a glue reservoir 51 and a dispensing needle 52. The glue reservoir 51 is mounted on the movable seat 4 and is used to store the glue to be dispensed. The dispensing needle 52 has a connecting end 52a and a dispensing end 52b located at opposite ends along its length. The connecting end 52a is fixedly connected to one end of the glue reservoir 51, so that the inner cavity of the dispensing needle 52 is in communication with the glue reservoir cavity of the glue reservoir 51.

[0047] In this dispensing device, the movable base 4 includes a base body 41 and a positioning member 42 fixedly disposed below the base body 41. The positioning member 42 has a positioning hole extending vertically through it. The glue reservoir 51 is detachably mounted on the base body 41, and the dispensing needle 52 is coaxially fitted into the positioning hole of the positioning member 42, with the dispensing end 52b extending below the positioning hole. Thus, each time the dispensing assembly 5 is replaced, the dispensing needle 52 is directly inserted into the positioning hole of the positioning member 42 from top to bottom, achieving positioning of the dispensing needle 52 and ensuring its vertical extension. Furthermore, after replacing the dispensing assembly 5, there is no need to readjust and calibrate the position of the dispensing needle 52, significantly saving calibration and adjustment time.

[0048] Referring to the accompanying drawings, in this embodiment, the positioning element 42 is detachably connected to the base 41, which facilitates the replacement of the positioning element 42 when needed to meet the different size and model requirements of the dispensing needle 52. Specifically, the positioning element 42 includes a head 421 and a rod 422. A receiving cavity 423 is formed on the head 421, and a positioning hole extends through the rod 422 along its axial direction and communicates with the receiving cavity 423. The glue reservoir 51 has a dispensing nozzle 511, which is located at the bottom of the glue reservoir 51 and is used to control the flow of glue. The connecting end 52a of the dispensing needle 52 is connected to the dispensing nozzle 511, and the connecting end 52a and the dispensing nozzle 511 are both located in the receiving cavity 423.

[0049] The dispensing needle 52 includes a needle shaft 522 and a connecting end 521. The connecting end 521 is connected to the dispensing nozzle 511. The outer diameter of the connecting end 521 is larger than the outer diameter of the needle shaft 522 to facilitate connection with the dispensing nozzle 511. The connecting end 521 is integrally located in the receiving cavity 423. The needle shaft 522 is axially inserted into the positioning hole of the positioning member 42. The length of the needle shaft 522 is greater than the length of the rod portion 422, thus ensuring that the dispensing end 52b can extend below the positioning hole for accurate dispensing.

[0050] The dispensing needle 52 and the positioning hole are in clearance fit. Specifically, the diameter of the positioning hole is slightly larger than the outer diameter of the needle shaft 522 of the dispensing needle 52. This ensures the stability of the dispensing needle 52 in the positioning hole, and prevents the installation and disassembly of the dispensing needle 52 from being affected by an overly tight fit.

[0051] Referring to the accompanying drawings, in this embodiment, the base 41 includes a vertical plate 411 and an upper horizontal plate 412 and a lower horizontal plate 413 fixed at the upper and lower ends of the vertical plate 411. The vertical plate 411 is used to fix it to the drive end of the drive mechanism. The upper horizontal plate 412 and the lower horizontal plate 413 are spaced apart in the vertical direction, and both have through holes extending in the vertical direction for the glue storage cylinder 51 to be inserted accordingly. The positioning member 42 is connected to the lower horizontal plate 413 and is installed in the through hole on the lower horizontal plate 413. The glue dispensing nozzle 511 of the glue storage cylinder 51 can be inserted into the receiving cavity 423 of the positioning member 42. When replacing the glue dispensing assembly 5, the glue storage cylinder 51 with the glue dispensing needle 52 can be directly inserted from top to bottom to complete the installation. The installation is very convenient and quick.

[0052] Referring to the accompanying drawings, the clamping base includes a fixed base 1 fixedly mounted on the machine tool and a connecting base 2 movably connected to the fixed base 1. The fixed base 1 has a first clamping part 11, and the connecting base 2 has a second clamping part 21. When the fixed base 1 and the connecting base 2 are brought together, the first clamping part 11 and the second clamping part 21 engage to form a clamping structure capable of clamping the workpiece 10 to be processed. When the connecting base 2 is separated from the fixed base 1, the clamping structure can be opened to insert the workpiece 10. After the workpiece 10 is placed in the first clamping part 11, the connecting base 2 is brought together from the fixed base 1, allowing the first clamping part 11 and the second clamping part 21 to cooperate in clamping the workpiece 10.

[0053] In this embodiment, the workpiece 10 is a transducer assembly with a cylindrical first housing 101, which can be clamped to hold the workpiece 10. Correspondingly, both the first clamping part 11 and the second clamping part 21 are arc-shaped grooves, which cooperate to form a circumferential clamping of the first housing 101. Referring to the accompanying drawings, the first clamping part 11 has a first stepped surface 11a, and the second clamping part 21 has a second stepped surface 21a. Thus, when the first clamping part 11 and the second clamping part 21 are joined together, the clamping structure formed is a stepped hole extending vertically. This not only allows the stepped hole to better adapt to the shape of the cylindrical workpiece 10, providing a more stable clamping effect, but also limits the axial movement of the workpiece 10, preventing it from falling off the clamping seat. Here, the arc of the first clamping part 11 is a superior arc, and the arc of the second clamping part 21 is a inferior arc. When the workpiece 10 to be processed is placed on the fixed base 1, more areas of the workpiece 10 to be processed cooperate with the first clamping part 11, making clamping and installation more convenient and the alignment more accurate.

[0054] The fixed base 1 is also provided with a positioning structure for cooperating with the workpiece 10 to be processed. This positioning structure can be located within the clamping area formed by the clamping structure or outside the clamping area. The positioning structure can be a protrusion, a groove, or other shapes, used to ensure that the workpiece 10 to be processed maintains a specific position and orientation during the clamping process. When performing dispensing processing on multiple workpieces 10 to be processed, the three-axis drive mechanism only needs to drive the moving base 4 to perform the dispensing operation according to a specific trajectory, without having to reset the processing path according to the actual installation position of the workpiece 10. In this embodiment, the first housing 101 of the workpiece 10 to be processed is provided with a first positioning groove 101a, and a positioning boss 12 is correspondingly provided on the first arc-shaped groove 11. When the workpiece 10 to be processed is clamped, the first positioning groove 101a and the positioning boss 12 are correspondingly engaged to achieve the positioning of the installation position of the workpiece 10 to be processed.

[0055] Referring to the accompanying drawings, in this embodiment, one end of the connecting seat 2 is rotatably connected to the fixed seat 1 about a first center line X1 extending vertically, and a locking assembly is provided between the other end of the connecting seat 2 and the fixed seat 1. When the connecting seat 2 and the fixed seat 1 are connected by the locking assembly, the first clamping part 11 and the second clamping part 21 are joined together horizontally to form a clamping structure. This allows the operator to easily open and close the clamping structure, facilitating the insertion and removal of the workpiece 10 to be processed.

[0056] Here, the locking assembly includes a locking member 3, which is rotatably connected to the connecting seat 2 about a second center line X2 extending in the vertical direction. The locking member 3 has a locking end 31 offset from the second center line X2, and the fixing seat 1 is provided with a mating part 13 that can hook and fix with the locking end 31. The locking assembly also includes an elastic element (not shown in the figure) that provides the force required for the locking member 3 to rotate so that the locking end 31 moves toward the mating part 13. This elastic element can be a torsion spring or other type of spring, installed on or near the second center line X2, to provide the elastic force required for the locking member 3 to rotate, so that the locking end 31 remains locked with the mating part 13.

[0057] When using this dispensing device to perform dispensing operations on the workpiece 10, it is mainly suitable for dispensing the workpiece 10 on the upward-facing end face after it is clamped.

[0058] In this embodiment, adhesive is applied to part or all of the first adhesive-dispensing surface 101c of the first housing 101 of the transducer assembly. After the connecting seat 2 is opened relative to the fixing seat 1, the transducer assembly is first placed into the first clamping part 11, so that the first positioning groove 101a on the first housing 101 corresponds to the positioning boss 12, and the first limiting surface 101b on the first housing 101 corresponds to the first step surface 11a. Then, the connecting seat 2 is rotated to move closer to the fixing seat 1, and the locking end 31 of the locking member 3 is fastened to the mating part 13 of the fixing seat 1, completing the positioning and installation of the workpiece 10. At this time, the first adhesive-dispensing surface 101c faces upward to receive adhesive dispensing.

[0059] The glue reservoir 51 with a dispensing needle 52 is installed on the movable base 4, so that the dispensing end 52b of the dispensing needle 52 passes downward through the positioning hole of the positioning member 42. The movable base 4 is moved by a three-axis drive mechanism, and at the same time, a pneumatic device cooperates with the glue reservoir 51 to squeeze the glue, thus realizing automatic glue dispensing.

[0060] In the above process, when replacing the dispensing assembly 5, it is simply inserted into the specific position on the moving base 4. The verticality of the dispensing needle 52 and the position of the dispensing end 52b of the dispensing needle 52 remain constant, without the need for recalibration and repositioning. This significantly improves the accuracy and quality of dispensing while greatly saving adjustment time, making it very quick and convenient to use. The overall structure of this dispensing device is very simple, which correspondingly makes the overall cost of the device controllable.

[0061] Example 2

[0062] See Figures 7 to 11 As shown, the dispensing device provided in this embodiment differs from that in Embodiment 1 in the following main aspects:

[0063] On the one hand, the dispensing device provided in this embodiment, see... Figure 10 , Figure 11 As shown, the transducer assembly has a second housing 102 and a connecting plate 103. The second housing 102 has a second adhesive surface 102c. After the adhesive is applied, the connecting plate 103 is then bonded to the second adhesive surface 102c.

[0064] See Figures 7 to 9As shown, in this dispensing device, a pressing head 43 is also fixedly mounted on the movable seat 4. The pressing head 43 and the positioning member 42 are spaced apart from each other, and the pressing head 43 and the positioning member 42 do not contact the workpiece 10 at the same time, so as to perform dispensing and pressing operations respectively. The pressing head 43 includes a connecting rod 431 and a pressing head 432 disposed at the lower part of the connecting rod 431. The pressing head 432 is frustoconical and is made of a soft material, which can be rubber, silicone or other elastic materials, to avoid damaging the surface of the workpiece 10 during the pressing process.

[0065] Thus, after the dispensing process is completed on the second adhesive surface 102c, the connecting plate 103 is bonded to the second adhesive surface 102c, and then the pressing head 43 is driven to move above the connecting plate 103 and apply a certain pressure downward, so that the connecting plate 103 can be bonded to the second housing 102.

[0066] On the other hand, the positioning structure on the fixing seat 1 of the dispensing device provided in this embodiment is located outside the clamping area, as detailed in [reference needed]. Figure 7 As shown, the positioning structure includes a positioning block 14, which is located on the upper part of the fixed base 1 and adjacent to the first arc-shaped groove 11. The first clamping part 11 and the second clamping part 21 cooperate to form a circular through hole.

[0067] When the workpiece 10 is clamped on the clamping seat, the cylindrical rod segment located below the second housing 102 is clamped by the first clamping part 11 and the second clamping part 21 in cooperation. The second limiting surface 102b on the second housing 102 is supported on the fixed seat 1 to form a vertical limiting. The second positioning groove 102a on the second housing 102 cooperates with the positioning block 14 to position the workpiece 10 on the clamping seat.

[0068] In summary, the dispensing device provided by this utility model has a simple structure. After replacing the dispensing component 5, it can ensure the verticality of the dispensing needle 52 and keep the position of the dispensing needle 52 constant. This not only improves the accuracy of dispensing processing, but also eliminates the need for calibration and positioning after reinstalling the dispensing component 5, making it very convenient to use.

[0069] Simultaneously, the cooperation between the fixed base 1 and the connecting base 2 enables the clamping of the workpiece, allowing for rapid clamping and positioning. During batch dispensing operations, there is no need to repeatedly adjust the operating program of the three-axis drive mechanism to adjust the movement path of the moving base 4, making the dispensing operation faster and more convenient. Using this dispensing device for dispensing certain components in the transducer assembly significantly makes the assembly of the transducer assembly more convenient and faster, greatly improving assembly accuracy and efficiency.

[0070] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0071] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. In the event of any contradiction or inconsistency between the definitions used herein and those contained in other published documents, the definitions used herein shall prevail.

[0072] It should also be noted that "rotational connection" in the above embodiments refers to pivot connection, unless the context clearly indicates other rotational connection methods.

[0073] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0074] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0075] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0076] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made based on the essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A dispensing device, characterized in that, The dispensing device includes: A clamping base, which is fixed on the machine base for clamping and fixing the workpiece to be processed; A movable base, which is driven by a drive mechanism and is capable of moving relative to the machine base; A dispensing assembly includes a glue reservoir and a dispensing needle. The dispensing needle has a connecting end and a dispensing end located at opposite ends along its length. The connecting end is fixedly connected to one end of the glue reservoir, so that the inner cavity of the dispensing needle is connected to the glue reservoir cavity of the glue reservoir. The movable seat includes a seat body and a positioning member fixedly disposed below the seat body. The positioning member has a positioning hole extending through in a vertical direction. The glue reservoir is detachably mounted on the seat body. The glue dispensing needle is coaxially fitted through the positioning hole, and the glue dispensing end extends out below the positioning hole.

2. The dispensing device according to claim 1, characterized in that: The positioning element is detachably connected to the base, and the dispensing needle is clearance-fitted with the positioning hole.

3. The dispensing device according to claim 2, characterized in that: The positioning element includes a head and a rod, a receiving cavity is formed on the head, and the positioning hole extends through the rod along the axial direction and communicates with the receiving cavity; The glue storage cylinder has a glue dispensing nozzle, and the connecting end is connected to the glue dispensing nozzle, and the connecting end and the glue dispensing nozzle are located together in the receiving cavity.

4. The dispensing device according to claim 3, characterized in that: The dispensing needle includes a needle shaft and a connecting end. The outer diameter of the connecting end is larger than the outer diameter of the needle shaft. The connecting end is connected to the dispensing nozzle. The needle shaft is inserted axially into the positioning hole. The length of the needle shaft is greater than the length of the rod portion.

5. The dispensing device according to claim 1, characterized in that: The clamping base includes a fixed base fixedly disposed on the machine base, and a connecting base movably connected to the fixed base. The fixed base is provided with a first clamping part, and the connecting base is provided with a second clamping part. When the fixed base and the connecting base come close to each other, the first clamping part and the second clamping part are combined to form a clamping structure that can clamp the workpiece to be processed.

6. The dispensing device according to claim 5, characterized in that: Both the first clamping part and the second clamping part are arc-shaped grooves. When the first clamping part and the second clamping part are assembled together, the clamping structure formed is a through hole or stepped hole extending in the vertical direction. The arc of the first clamping part is a superior arc, and the arc of the second clamping part is a inferior arc.

7. The dispensing device according to claim 5, characterized in that: The fixed base is also provided with a positioning structure for cooperating with the workpiece to be processed. The positioning structure is located within the clamping area formed by the clamping structure or outside the clamping area.

8. The dispensing device according to claim 5, characterized in that: One end of the connecting seat is rotatably connected to the fixed seat around a first center line extending in the vertical direction. A locking assembly is provided between the other end of the connecting seat and the fixed seat. When the connecting seat and the fixed seat are connected by the locking assembly, the first clamping part and the second clamping part are spliced ​​together in the horizontal direction to form the clamping structure.

9. The dispensing device according to claim 8, characterized in that: The locking assembly includes a locking member rotatably connected to the connecting seat about a second center line extending in a vertical direction. The locking member has a locking end offset from the second center line. The fixing seat is provided with a mating part that can hook and fix the locking end to each other. The locking assembly also includes an elastic member that provides the force required for the locking member to rotate so that the locking end moves toward the mating part.

10. The dispensing device according to claim 1, characterized in that: The movable seat is also fixedly provided with a pressing head, which is spaced apart from the positioning member, and the pressing head and the positioning member do not contact the workpiece to be processed at the same time; wherein, the pressing head includes a connecting rod and a pressing head provided at the lower part of the connecting rod, and the pressing head is made of soft material.

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