Handheld cutting tool for micro-assembly

Abstract

The utility model discloses a handheld cutting tool for micro-assembly, and belongs to the technical field of handheld cutting tools. The utility model solves the problems of small application range, poor use flexibility and high replacement cost after damage due to the fact that the tool bit and the handle in the handheld tool are fixedly mounted and cannot be detached. The tool bit comprises a handle, a supporting main body and a tool bit mounting part which are detachably connected in sequence, the supporting main body comprises a mounting groove; the tool bit mounting part comprises a mounting frame and an inserting rod connected with the mounting frame; the inserting rod is used for being connected with the tool bit and driving the tool bit to do linear reciprocating motion from the interior of the mounting groove to the exterior of the mounting groove. The handle comprises a blocking column, and the mounting frame is limited in the mounting groove through the blocking column. All the components are detachably connected, maintenance and replacement are convenient, and cost is reduced; and one handheld cutter is connected with various types of cutter heads and is used as required, so that the application range is widened, and the use flexibility is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of handheld cutting tools, in particular to a handheld cutting tool for micro-assembly. Background Art

[0002] Microassembly is a comprehensive assembly process technology based on microelectronics technology, high-density assembly technology and micro-welding technology. That is, on a multi-layer wiring substrate, microelectronic components and micro components are assembled according to the electrical schematic to form a comprehensive high technology for microelectronic product components, parts and subsystems with high-density and high-reliability 3D structures.

[0003] In the micro-assembly process, a handheld tool is required to cut and clean excess attachments such as solder and colloid. The blade of the existing handheld tool is fixedly installed in the handle and cannot be disassembled, resulting in the following problems with the existing handheld tool: when in use, the blade cannot be replaced as needed, resulting in a small scope of application and poor flexibility of use of the handheld tool. It is impossible to replace only the damaged blade, and a new handheld tool can only be replaced, resulting in increased costs. Utility Model Content

[0004] In view of the above analysis, the utility model aims to provide a handheld cutting tool for micro-assembly, so as to solve the problem that the blade head and the handle in the existing handheld knives are fixedly installed and cannot be disassembled, resulting in a small scope of application and poor flexibility of use of the existing handheld knives, and the problem that when the blade head is damaged, it can only be replaced with a new handheld knife, resulting in increased costs.

[0005] The purpose of this utility model is mainly achieved through the following technical solutions:

[0006] The utility model provides a handheld cutting tool for micro-assembly, comprising a handle, a supporting body and a cutter head mounting portion which are detachably connected in sequence;

[0007] The support body includes at least one mounting slot;

[0008] The cutter head mounting part includes a mounting frame and an insertion rod connected to the mounting frame;

[0009] The insert rod is used to connect the cutter head and drive the cutter head to perform linear reciprocating motion from inside the installation slot to outside the installation slot;

[0010] The handle includes a stop column, and the mounting frame is limited in the mounting groove by the stop column.

[0011] Furthermore, the cutter head mounting portion further includes a first spring and a slide bar;

[0012] The slide bar is slidably connected to the installation frame through the first spring;

[0013] The insertion rod penetrates the slide bar;

[0014] The plunger moves synchronously with the slider.

[0015] Furthermore, the cutter head mounting portion also includes a stopper connected to the insertion rod, and the stopper is located between the stop column and the slide bar.

[0016] Furthermore, it also includes a limiting portion;

[0017] The limiting part includes a limiting rod;

[0018] The limiting rod penetrates through the supporting body and is connected with the upper limiting groove of the stopper.

[0019] Furthermore, an oblique groove matching the limiting rod is provided on the slide bar.

[0020] Furthermore, the support body also includes a logo plate;

[0021] The identification plates and the installation slots are arranged in one-to-one correspondence.

[0022] Furthermore, the supporting body also includes a through groove communicating with the mounting groove.

[0023] Furthermore, the cutter head mounting portion further comprises a toggle block connected to the insertion rod;

[0024] The toggle block is connected with the insertion rod after passing through the through slot; the toggle block drives the insertion rod to perform linear motion along the long axis direction of the through slot.

[0025] Furthermore, the toggle block is located between the stop column and the slide bar.

[0026] Further, it also includes a protective shell connected to the handle;

[0027] The protective case includes an accommodation chamber for accommodating the support body.

[0028] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0029] 1. In the present invention, the purpose of replacing and removing the cutter head mounting portion from the mounting groove is achieved through the detachable connection between the mounting frame and the mounting groove, so that the handheld cutting tool of the present invention is easy to disassemble and repair.

[0030] 2. In the present invention, the purpose of replacing the cutter head is achieved through the detachable connection between the insertion rod and the cutter head. When the cutter head is damaged, a new cutter head can be replaced and the handheld cutting tool of the present invention can continue to be used. Compared with the existing cutter head and the handle being fixedly connected, and the cutter head needs to be discarded as a whole when it is damaged, the handheld cutting tool of the present invention only needs to replace the damaged cutter head with a new one, and there is no need to discard the entire handheld cutting tool, thereby reducing the cost of maintenance and replacement.

[0031] 3. In the utility model, the cutter head is driven by the insertion rod to perform linear reciprocating motion from inside the installation slot to outside the installation slot. When in use, the cutter head extends out of the installation slot, and when not in use, the cutter head is located in the installation slot, which is beneficial to protecting the cutter head and preventing the cutter head from cutting surrounding objects, and is flexible to use.

[0032] 4. In the utility model, a plurality of mounting grooves are arranged on the supporting body, each mounting groove is connected to a cutter head mounting portion, and each cutter head mounting portion is connected to a cutter head, so that the handheld cutting tool in the utility model can be installed with a plurality of cutter heads of different models, and the operator can use them as needed, which is flexible to use and has a wide range of applications.

[0033] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents particularly pointed out in the embodiments of the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0035] Figure 1 This is a structural schematic diagram of a handheld cutting tool for micro-assembly of the utility model;

[0036] Figure 2 It is a schematic diagram of the structure of the supporting body;

[0037] Figure 3 It is a schematic diagram of the structure after the cutter head mounting part is connected to the cutter head;

[0038] Figure 4 It is a schematic diagram of the structure after the installation frame, the slide bar and the first spring are connected;

[0039] Figure 5 It is a schematic diagram of the structure after the insertion rod and the cutter head are connected;

[0040] Figure 6 It is a structural schematic diagram of the limiting part;

[0041] Figure 7 It is a schematic diagram of the structure when the handle and the protective shell are not connected.

[0042] Reference numerals:

[0043] 100-handle, 200-support body, 300-cutter head mounting part, 400-limiting part, 500-protective shell, cutter head-600;

[0044] 110-blocking column, 120-first connecting ring;

[0045] 210-installation groove, 220-through groove, 230-identification plate, 240-cylinder connecting section, 250-installation support section;

[0046] 310 - mounting frame, 320 - slide bar, 330 - plug rod, 340 - first spring, 350 - stop block, 360 - toggle block;

[0047] 321-chute;

[0048] 351-limiting slot;

[0049] 410 - limiting rod, 420 - fixing shell, 430 - pulling block, 440 - second spring. DETAILED DESCRIPTION

[0050] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0051] Example

[0052] A specific embodiment of the utility model discloses a handheld cutting tool for micro-assembly, such as Figure 1-Figure 3 As shown, it includes a handle 100, a support body 200 and a cutter head mounting portion 300 which are detachably connected in sequence; the support body 200 includes at least one mounting slot 210; the cutter head mounting portion 300 includes a mounting frame 310 and an insertion rod 330 connected to the mounting frame 310; the insertion rod 330 is used to connect the cutter head 600 and drive the cutter head to perform linear reciprocating motion from the inside of the mounting slot 210 to the outside of the mounting slot 210; the handle 100 includes a stop column 110, through which the mounting frame 310 is limited in the mounting slot 210.

[0053] In this embodiment, the purpose of replacing and removing the cutter head mounting portion 300 from the mounting slot 210 is achieved through the detachable connection between the mounting frame 310 and the mounting slot 210, so that the handheld cutting tool of this embodiment is easy to disassemble and repair.

[0054] In this embodiment, the purpose of replacing the cutter head 600 is achieved through the detachable connection between the insertion rod 330 and the cutter head 600. When the cutter head 600 is damaged, a new cutter head can be replaced, and the handheld cutting tool of this embodiment can continue to be used. Compared with the existing cutter head and the handle being fixedly connected, and the damaged cutter head needs to be discarded as a whole, the handheld cutting tool of this embodiment only needs to replace the damaged cutter head with a new one, and there is no need to discard the entire handheld cutting tool, thereby reducing the maintenance and replacement costs.

[0055] In this embodiment, the insert rod 330 drives the cutter head 600 to perform linear reciprocating motion from inside the mounting slot 210 to outside the mounting slot 210. When in use, the cutter head 600 extends out of the mounting slot 210. When not in use, the cutter head 600 is located in the mounting slot 210, which is beneficial to protecting the cutter head 600 and preventing the cutter head 600 from cutting surrounding objects, and is flexible to use.

[0056] In this embodiment, a plurality of mounting grooves 210 are provided on the support body 200, each mounting groove 210 is connected to a cutter head mounting portion 300, and each cutter head mounting portion 300 is connected to a cutter head 600, so that the handheld cutting tool in this embodiment can be installed with a plurality of cutter heads 600 of different models, and the operator can use them as needed, which is flexible to use and has a wide range of applications.

[0057] Furthermore, the handle 100 includes a gripping section and a connecting section arranged in sequence, and the connecting section includes a first connecting ring 120 and a stop column 110 arranged in sequence from the outside to the inside, such as Figure 7 shown.

[0058] In this embodiment, the first connecting ring 120 has an internal thread and an external thread; the internal thread of the first connecting ring 120 is connected to the external thread of the support body 200 to achieve the connection between the handle 100 and the support body 200. The external thread of the first connecting ring 120 is connected to the internal thread of the open end of the protective shell 500 to achieve the connection between the handle 100 and the protective shell 500.

[0059] In this embodiment, the stopper 110 cooperates with the support body 200 to limit the mounting frame 310 in the mounting groove 210. The stopper 110 can also block and limit the end of the insertion rod 330 during the resetting process of the insertion rod 330 to avoid excessive movement of the insertion rod 330 during the resetting process.

[0060] Furthermore, the support body 200 includes a cylindrical connecting section 240 and a mounting support section 250 which are arranged in sequence. Figure 2 As shown, the cylindrical connecting section 240 includes a receiving cavity matched with the blocking column 110 and a second connecting ring, and the second connecting ring includes an external thread connected to the first connecting ring 120 to facilitate the connection between the support body 200 and the handle 100.

[0061] In this embodiment, the support body 200 further includes a mounting groove 210, a through groove 220 and an identification plate 230 arranged on the mounting support section 250. Figure 2 shown.

[0062] In this embodiment, the mounting groove 210 is a through groove. Figure 1 As shown, it is used to arrange and limit the tool head mounting portion 300, specifically, to limit the mounting frame 310.

[0063] In this embodiment, the through slot 220 is formed on the side wall of the mounting support section 250. Figure 2 As shown, the through groove 220 is connected with the mounting groove 210. On the one hand, it is used to limit the movement displacement and movement direction of the toggle block 360 on the tool head mounting part 300 and the movement direction of the limiting rod 330. On the other hand, it provides a movement channel for the upper limit rod 410 on the limiting part 400.

[0064] In this embodiment, the identification plate 230 is disposed in a one-to-one correspondence with the mounting slot 210. Figure 2 As shown, the specification and style of the cutter head 600 in the installation slot 210 corresponding to the identification plate 230 are obtained through the content recorded on the identification plate 230. During use, the staff can know the position of the required cutter head 600 through the specification and style of the cutter head 600 identified on the identification plate 230, which is convenient for the staff to select and use.

[0065] In this embodiment, by providing a plurality of installation grooves 210 inside the support body 200, each installation groove 210 is equipped with a cutter head mounting portion 300, so that cutter heads 600 of various specifications can be installed on the support body 200 at the same time. When used later, the staff can slide the corresponding cutter head 600 out from the support body 200 for use as needed, thereby improving the flexibility and applicability of the handheld cutting tool in this embodiment during later use.

[0066] Further, considering the installation, fixing, extension and replacement of the cutter head 600, the cutter head mounting portion 300 is detachably connected to the support body 200, and the cutter head mounting portion 300 includes a mounting frame 310, a slide bar 320, an insertion rod 330, a first spring 340, a stopper 350 and a toggle block 360, as shown in FIG. Figure 3-Figure 5 As shown, the plunger 330 includes a tool head installation position for installing the tool head 600. The stopper 110, the first spring 340, the slide bar 320 and the tool head installation position are arranged in sequence, and the stopper 110, the toggle block 360, the stopper 350 and the slide bar 320 are arranged in sequence.

[0067] In this embodiment, the mounting frame 310 provides a mounting base for other components in the cutter head mounting portion 300 except the mounting frame 310 , and is also used to fit closely with the mounting groove 210 on the support body 200 .

[0068] In this embodiment, the insertion rod 330 passes through the slide bar 320 and is slidably connected to the slide bar 320. The purpose of replacing the insertion rod 330 is achieved through the detachable connection between the insertion rod 330 and the slide bar 320, which is convenient for disassembly and maintenance.

[0069] In this embodiment, considering the automatic reset of the cutter head 600 from outside the installation groove 210 to inside the installation groove 210, the cutter head installation portion 300 is provided with a slide bar 320 and a first spring 340, such as Figure 3As shown, the slide bar 320 is connected to the mounting frame 310 through the first spring 340, and the elasticity of the first spring 340 drives the slide bar 320 to perform linear motion along the length direction of the mounting frame 310. The insertion rod 330 passes through the slide bar 320, and due to the setting of the stopper 350, the insertion rod 330 and the slide bar 320 move synchronously during the process of the cutter head 600 performing linear reciprocating motion from the inside of the mounting slot 210 to the outside of the mounting slot 210.

[0070] In this embodiment, the insertion rod 330 passes through the slide bar 320 to facilitate the disassembly and replacement of damaged components and reduce maintenance costs.

[0071] In this embodiment, the cutter head mounting portion 300 is provided with a stopper 350 connected to the insertion rod 330. Figure 5 As shown, during the linear reciprocating motion, the rod 330 and the slide bar 320 move synchronously, and on the other hand, the rod 330 is limited, thereby limiting the position of the cutter head 600. Specifically, when the cutter head 600 extends out of the mounting slot 210 and is in use, the rod 330 is limited by connecting the stopper 350 with the limiting rod 410 in the limiting portion 400, thereby fixing the cutter head 600 outside the mounting slot 210, which is convenient for using the cutter head 600. The stopper 350 includes a limiting slot that matches the limiting rod 410.

[0072] In this embodiment, the blade mounting portion 300 further includes a toggle block 360 connected to the insertion rod 330. The toggle block 360 passes through the through slot 220 and is connected to the insertion rod 330. Figure 1 and Figure 5 As shown. The toggle block 360 protrudes from the support body 200, and the toggle block 360 drives the insertion rod 330 to perform linear motion along the long axis direction of the through slot 220. The sliding connection between the toggle block 360 and the through slot 220 facilitates the movement and positioning of the insertion rod 330. The cross-sectional area of ​​the contact section of the toggle block 360 with the through slot 220 is rectangular, which prevents the insertion rod 330 from rotating during installation, thereby avoiding the problem of position deviation of the cutter head 6.

[0073] Furthermore, the handheld cutting tool for micro-assembly of this embodiment further includes a limiting portion 400, such as Figure 1 As shown, by cooperating with the stopper 350 connected to the insertion rod 330, the insertion rod 330 is limited, thereby limiting the position of the cutter head 600. The limiting portion 400 includes a limiting rod 410, such as Figure 6 As shown, the limiting rod 410 passes through the supporting body 200 and is connected to the limiting groove on the stopper 350 , thereby limiting the insertion rod 330 .

[0074] Considering the installation arrangement of the limiting rod 410, the limiting part 400 further includes a fixing shell 420, a pull block 430 and a second spring 440. Figure 6As shown. The fixed shell 420 is connected to the support body 200. The second spring 440 is sleeved outside the limiting rod 410 and arranged in the fixed shell 420. One end of the pull block 430 extends out of the fixed shell 420, and the other end extends into the fixed shell 420 and is connected to the first end of the limiting rod 410. The first end of the limiting rod 410 extends out of the fixed shell 420 and is used to abut against the limiting groove 351 or the inclined groove 321. The pull block 430 is used to pull the limiting rod 410 to perform linear movement along the length direction of the limiting rod 410 to achieve the separation of the limiting rod 410 and the upper limit groove of the stopper 350, that is, to achieve the separation of the second end of the limiting rod 410 and the upper limit groove 351 of the stopper 350.

[0075] In this embodiment, considering that the limit rod 410 is stable and does not shift when the limit rod 410 is in contact with the upper limit groove of the stopper 350, an inclined groove 321 matching the limit rod 410 is provided on the slide bar 320, such as Figure 4 As shown, the central axes of the inclined groove 321 and the limiting groove 351 coincide with each other, and both are open toward the limiting rod 410. When the slide bar 320 is in the initial state, the limiting rod 410 abuts against the inclined groove 321. When the slide bar 320 is in the sliding state, the limiting rod 410 is slidably connected with the inclined groove 321 until the inclined groove 321 moves away from the area where the limiting rod 410 is located. Specifically: when the first spring 340 is set to be in a compressed state, the slide bar 320 is in the initial state, at which time the cutter head 600 is in a stationary state and located in the mounting groove 210, at which time the limiting rod 410 abuts against the inclined groove 321 and is in a stationary state. Because the limit rod 410 is in contact with the inclined groove 321, during the sliding process of the slide bar 320, the force of the horizontal movement of the slide bar 320 is converted into a driving force for the limit rod 410 in the vertical direction, so that the limit rod 410 moves in the vertical direction, so that it slides out from the inside of the inclined groove 321 and moves to the top of the slide bar 320. At this time, the second spring 440 is in a compressed state. As the slide bar 320 continues to slide, the limit groove 351 moves to the bottom of the limit rod 410. Under the action of the second spring 440, the limit rod 410 always has a downward force, and the limit rod 410 enters the limit groove 351 and abuts against the limit groove 351, completing the limitation of the insertion rod 330 by the limit rod 410, thereby completing the position limitation of the cutter head 600, which is beneficial to the stable operation of the cutter head 600.

[0076] Furthermore, the handheld cutting tool for micro-assembly of this embodiment further includes a protective shell 500 connected to the handle 100; the protective shell 500 includes a receiving chamber for accommodating the support body 200. By sleeve connection of the protective shell 500, the support body 200 is sleeved for protection, thereby improving the integrity of the handheld cutting tool of this embodiment.

[0077] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A handheld cutting tool for micro-assembly, characterized in that: It comprises a handle (100), a support body (200) and a cutter head mounting portion (300) which are detachably connected in sequence; The support body (200) comprises at least one mounting groove (210); The cutter head mounting portion (300) comprises a mounting frame (310) and an insertion rod (330) connected to the mounting frame (310); The insert rod (330) is used to connect the cutter head and drive the cutter head to perform linear reciprocating motion from within the installation slot (210) to outside the installation slot (210); The handle (100) comprises a stop column (110), and the installation frame (310) is limited in position within the installation groove (210) by the stop column (110).

2. The handheld cutting tool for micro-assembly according to claim 1, characterized in that: The cutter head mounting portion (300) further includes a first spring (340) and a slide bar (320); The sliding bar (320) is slidably connected to the installation frame (310) through the first spring (340); The insertion rod (330) passes through the slide bar (320); The insertion rod (330) moves synchronously with the sliding bar (320).

3. The handheld cutting tool for micro-assembly according to claim 2, characterized in that: The cutter head mounting portion (300) further comprises a stopper (350) connected to the insertion rod (330), and the stopper (350) is located between the stopper column (110) and the slide bar (320).

4. The handheld cutting tool for micro-assembly according to claim 3, characterized in that: Also includes a limiting portion (400); The limiting portion (400) comprises a limiting rod (410); The limiting rod (410) passes through the supporting body (200) and is connected to the upper limiting groove of the stopper (350).

5. The handheld cutting tool for micro-assembly according to claim 4, characterized in that: The slide bar (320) is provided with an inclined groove (321) matching the limiting rod (410).

6. The handheld cutting tool for micro-assembly according to claim 1, characterized in that: The supporting body (200) further comprises an identification plate (230); The identification plates (230) are arranged in one-to-one correspondence with the installation grooves (210).

7. The handheld cutting tool for micro-assembly according to claim 2, characterized in that: The supporting body (200) further comprises a through groove (220) communicating with the mounting groove (210).

8. The handheld cutting tool for micro-assembly according to claim 7, characterized in that: The cutter head mounting portion (300) further comprises a toggle block (360) connected to the insertion rod (330); The toggle block (360) is connected to the insertion rod (330) after passing through the through slot (220); the toggle block (360) drives the insertion rod (330) to perform linear motion along the long axis direction of the through slot (220).

9. The handheld cutting tool for micro-assembly according to claim 8, characterized in that: The toggle block (360) is located between the blocking column (110) and the slide bar (320).

10. The handheld cutting tool for micro-assembly according to any one of claims 1 to 9, characterized in that: Also included is a protective shell (500) connected to the handle (100); The protective case (500) includes a receiving chamber for receiving the supporting body (200).

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