Cutter positioning tool of miniature PCB cutter welding machine

Abstract

The utility model provides a cutter positioning tool of a miniature PCB cutter welding machine, which relates to the technical field of cutter positioning tools of miniature PCB cutter welding machines, and comprises a working table, a protective shell is arranged on the top surface of the working table, two clamps are arranged in the protective shell, sliding chutes are arranged on the inner walls of the two clamps, six clamping blocks are arranged in the two clamps, and the clamping blocks are arranged on the top surface of the working table. Sliding blocks are arranged on the surfaces of the two sides of the twelve clamping blocks correspondingly, knobs are arranged on one sides of the two clamps correspondingly, supports are arranged on the surfaces of the knobs correspondingly, top frames are arranged on the top faces of the two clamps correspondingly, fixing bolts abut against the knobs, the knobs are prevented from loosening, and therefore the tool bit and the tool handle are prevented from falling off, and the tool bit and the tool handle are surrounded by the six clamping blocks in a circumferential array. The surfaces for clamping the tool bit and the tool handle are increased, so that the force receiving area of the tool bit and the tool handle is enlarged, abrasion of the tool bit and the tool handle is reduced, and the defect that the tool handle and the tool bit are prone to abrasion due to the small extrusion clamping area of the bolt is overcome.

Description

Technical Field

[0001] This utility model relates to the field of tool positioning fixture technology for a micro PCB tool welding machine, and more particularly to a tool positioning fixture for a micro PCB tool welding machine. Background Technology

[0002] According to the Chinese Publication No. CN220902157U, this utility model belongs to the field of resistance welding technology and discloses a welding fixture for resistance welding of PCB tools, including: a base plate, a fixing component installed on the top of the base plate, a tool handle and a tool head installed on the top of the base plate, the fixing component including a fixing mechanism for fixing the tool handle and the tool head and a movable mechanism for adjusting the position of the tool head, the movable mechanism having a movable part composed of a rod and a connecting part, the fixing mechanism being installed on the surface of the tool handle and the tool head, this utility model sets up a fixing mechanism, the tool handle is installed inside the fixing cylinder and fixed by the base plate, and then the position of the fixing ring is adjusted by the movable mechanism to cooperate with the base plate to achieve the splicing effect, the bolt is screwed into the threaded hole, the contact rod contacts the tool handle and the tool head, fixing them inside the fixing cylinder and the fixing ring, the fixing ring is connected to the connecting rod, and the height position of the fixing ring is controlled by a slider.

[0003] When the above technology is used, the tool holder and the tool head are clamped by two bolts in a two-way compression. Because the contact area of ​​the two bolts is small, the two bolts will cause wear on the tool holder and the tool head during the clamping process, thus causing defects in the product. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the small area of ​​bolt clamping easily leads to wear on the tool holder and tool head. This invention proposes a tool positioning fixture for a miniature PCB tool welding machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tool positioning fixture for a miniature PCB tool welding machine, comprising a worktable, a protective shell on the top surface of the worktable, two clamps inside the protective shell, a sliding groove on the inner wall of each clamp, six clamping blocks inside each clamp, sliders on both sides of each of the twelve clamping blocks, a knob on one side of each clamp, a bracket on the surface of each knob, a top frame on the top surface of each clamp, fixing bolts inside the top frame, a rack on the surface of each clamp, a gear in the middle of the worktable, a rotating shaft in the middle of the gear, and slots on the surface of each clamp.

[0006] Preferably, the two protective shells are inverted L-shaped, and both protective shells are welded to the surface of the workbench.

[0007] Preferably, the two clamps are installed in the middle of the two protective shells, and the two racks are welded symmetrically to the surface of the clamps.

[0008] Preferably, the two slots are arranged in parallel on the surface of the fixture, and one end of the protective shell is engaged in the slot of the fixture.

[0009] Preferably, the gear is positioned between two racks, the rotating shaft passes through the gear and the worktable, and the gear is axially connected to the worktable.

[0010] Preferably, both top frames are welded to the bottom surface of the fixture, and the fixing bolts pass through the top frames and are installed in the top frames through the surface threads.

[0011] Preferably, the clamping blocks are arranged in a circumferential array inside the fixture, both knobs are held in the fixture, and both brackets are welded to the surface of the knobs.

[0012] Preferably, both supports are located on one side close to the clamping block, the sliders on one side of the six clamping block surfaces are installed in the grooves on the inner wall of the clamp, and the sliders on the other side of the clamping block are installed in the supports on the knob surface.

[0013] Beneficial effects

[0014] In this invention, two clamps are installed between two protective shells, with one end of each shell secured in a groove on the surface of the clamp. Six clamping blocks inside each clamp are arranged in a circular array. A knob is secured to the surface of the clamp. A slider on one side of each clamping block is installed in a groove on the inner wall of the clamp, while a slider on the other side is installed in a bracket of the knob. A top frame is provided on the top surface of the clamp, with fixing bolts inside. In use, turning the knob opens the six clamping blocks and engages the cutting head and handle. Place the tool in the middle of the six clamping blocks and turn the knob again to clamp the tool head and handle. When the tool head and handle are clamped, turn the fixing bolt inside the top frame to make the fixing bolt press against the knob to prevent the knob from loosening and causing the tool head and handle to fall off. The six clamping blocks surround the tool head and handle in a circumferential array, increasing the surface area for clamping the tool head and handle. This expands the area on which the tool head and handle receive force, thereby reducing the wear of the tool head and handle. This solves the problem that the small clamping area caused by the bolts can easily lead to wear on the tool head and handle. Attached Figure Description

[0015] Figure 1 This is an isometric drawing of the present invention;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 For the present utility model Figure 2 A cross-sectional view;

[0018] Figure 4 For the present utility model Figure 2 Longitudinal sectional view;

[0019] Figure 5 This is a partial right view of the present invention.

[0020] Legend:

[0021] 1. Workbench; 2. Fixture; 3. Knob; 4. Protective shell; 5. Fixing bolt; 6. Gear; 7. Top frame; 8. Rotating shaft; 9. Rack; 10. Slide groove; 11. Slider; 12. Support; 13. Slot; 14. Clamping block. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0025] Reference Figure 1-5A tool positioning fixture for a miniature PCB tool welding machine includes a worktable 1. A protective shell 4 is provided on the top surface of the worktable 1. Two clamps 2 are located inside the protective shell 4. Each clamp 2 has a sliding groove 10 on its inner wall. Each clamp 2 has six clamping blocks 14 inside. Slider blocks 11 are provided on both sides of each clamping block 14. A knob 3 is provided on one side of each clamp 2. A bracket 12 is provided on the surface of each knob 3. A top frame 7 is provided on the top surface of each clamp 2. Fixing bolts 5 are provided inside each top frame 7. A rack 9 is provided on the surface of each clamp 2. A gear 6 is located in the middle of the worktable 1. A rotating shaft 8 is located in the middle of the gear 6. A slot 13 is provided on the surface of each clamp 2. The two protective shells 4 are inverted L-shaped and welded to the surface of the worktable 1. The two clamps 2 are mounted on the two protective shells 4. In the middle, two racks 9 are symmetrically welded to the surface of the fixture 2. Two slots 13 are parallel to each other on the surface of the fixture 2. One end of the protective shell 4 is inserted into the slot 13 of the fixture 2. The gear 6 is located in the middle of the two racks 9. The rotating shaft 8 passes through the gear 6 and the worktable 1. The gear 6 is axially connected to the worktable 1. Two top frames 7 are welded to the bottom surface of the fixture 2. The fixing bolt 5 passes through the top frame 7 and is installed in the top frame 7 through the surface thread. The clamping blocks 14 are arranged in a circumferential array inside the fixture 2. Two knobs 3 are inserted into the fixture 2. Two brackets 12 are welded to the surface of the knobs 3. The two brackets 12 are located on the side close to the clamping blocks 14. The sliders 11 on one side of the surface of the six clamping blocks 14 are installed in the grooves 10 on the inner wall of the fixture 2. The sliders 11 on the other side of the clamping blocks 14 are installed in the brackets 12 on the surface of the knobs 3.

[0026] Two clamps 2 are installed between two protective shells 4. The protective shells 4 are welded to the top surface of the workbench 1 in an inverted L shape, and one end of the protective shell 4 is locked in the slot 13 on the surface of the clamp 2. The clamp 2 is fixed to the top surface of the workbench 1 by the protective shell 4 being locked in the slot 13. The six clamping blocks 14 inside the two clamps 2 are arranged in a circumferential array inside the clamps 2. Two knobs 3 are locked to the left and right sides of the two clamps 2 by the locking blocks on their surfaces. The surfaces of the knobs 3 with brackets 12 inside each knob have six oblique sliding grooves 10. The brackets 12 and knobs 3 are connected to each other. The two clamping blocks 14 are integrally formed. The slider 11 on one side of each clamping block 14 is installed in the groove 10 on the inner wall of the clamp 2, and the slider 11 on the other side of the clamping block 14 is installed in the inclined groove 10 of the bracket 12 of the knob 3. The clamping block 14 and the slider 11 are integrally formed. Since the slider 11 at one end of the clamping block 14 is installed in the inclined groove 10 of the bracket 12 of the knob 3, when the knob 3 is rotated, the inclined groove 10 on the surface of the bracket 12 will drive the slider 11, causing the slider 11 to move within the groove 10 on the surface of the bracket 12. Because the slider 11 and the clamping block 14 are integrally formed... The fixture 2 is formed into a single unit. When the slider 11 moves, it will drive the clamping block 14 to move together. When the clamping block 14 moves, the slider 11 on the other side surface of the clamping block 14 will also move in the slide groove 10 on the inner wall of the fixture 2. The slide groove 10 on the inner wall of the fixture 2 is hexagonal. The clamping block 14 is opened or closed by the direction of movement of the slider 11 in the slide groove 10 on the inner wall of the fixture 2. A top frame 7 is provided on the top surface of the fixture 2. The top frame 7 has a fixing bolt 5 inside. When in use, turn the knob 3 clockwise to open the six clamping blocks 14 and put the cutting head and the cutting handle into the six clamping blocks. In the middle of 14, turn the knob 3 again to make the six clamping blocks 14 clamp the blade head and the handle. When the blade head and the handle are clamped, turn the fixing bolt 5 inside the top frame 7 to make the fixing bolt 5 abut against the knob 3 to prevent the knob 3 from rotating and causing the clamping blocks 14 to loosen, thereby causing the blade head and the handle to fall off. The six clamping blocks 14 surround and abut against the blade head and the handle in a circumferential array, increasing the area of ​​clamping the blade head and the handle. The force of clamping the blade head and the handle by the clamping blocks 14 is reduced by the expansion of the area, thereby reducing the wear of the blade head and the handle caused by the clamping blocks 14.

[0027] When the two clamps 2 hold the cutting head and the tool holder, one of the clamps 2 can be moved. Since the surfaces of both clamps 2 are welded with racks 9, the two racks 9 are distributed in a mirror image of the gears 6 and their positions are restricted by the two protective shells 4. Both racks 9 abut against the gears 6. The gears 6 are axially connected to the worktable 1 through the rotating shaft 8, so that the gears 6 can rotate along the rotating shaft 8. When the gears 6 rotate, they will drive the racks 9 on both sides to move horizontally. When one clamp 2 is moved, the rack 9 of the moving clamp 2 will drive the gear 6 to rotate. When the gear 6 rotates, it will drive the other rack 9 abutting against the gear 6 to move horizontally, so that the two clamps 2 are brought closer together and the tool holder and the cutting head clamped in the center of the clamp 2 make horizontal contact, thus completing the positioning of the cutting head and the tool holder. Specific Implementation Example 2:

[0029] Reference Figure 1-5 A tool positioning fixture for a miniature PCB tool welding machine, further based on the basic structure in Specific Embodiment 1, can have six spring plates at the center of a circumferential array of six clamping blocks 14, and each spring plate is mounted on the surface of the clamping block 14 by two screws. When the six clamping blocks 14 are pressing the tool head and the tool holder, the six spring plates will abut against the tool head and the tool holder, thereby reducing the pressure of the clamping blocks 14 on the tool head and the tool holder, further reducing the holding force of the clamping blocks 14 on the tool head and the tool holder, thereby reducing the wear on the tool head and the tool holder.

[0030] In summary:

[0031] 1. Two clamps 2 are installed between two protective shells 4, with one end of the protective shell 4 locked in a slot 13 on the surface of the clamp 2. Six clamping blocks 14 inside the two clamps 2 are arranged in a circular array. A knob 3 is locked on the surface of the clamp 2. A slider 11 on one side of each clamping block 14 is installed in a groove 10 on the inner wall of the clamp 2, and a slider 11 on the other side of each clamping block 14 is installed in a bracket 12 of the knob 3. A top frame 7 is provided on the top surface of the clamp 2, and a fixing bolt 5 is provided inside the top frame 7. When in use, turning the knob 3 opens the six clamping blocks 14. The cutting head and handle are placed in the middle of the six clamping blocks 14, and the knob 3 is turned again to clamp the cutting head and handle with the six clamping blocks 14. When the cutting head and handle are clamped, the fixing bolt 5 inside the top frame 7 is turned so that the fixing bolt 5 abuts against the knob 3 to prevent the knob 3 from loosening and causing the cutting head and handle to fall off. The six clamping blocks 14 surround the cutting head and handle in a circumferential array, increasing the surface area for clamping the cutting head and handle, thus expanding the area on which the cutting head and handle receive force and reducing the wear of the cutting head and handle. This solves the problem that the small clamping area due to bolt compression easily causes wear on the cutting head and handle.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tool positioning fixture for a miniature PCB tool welding machine, comprising a worktable (1), characterized in that: The top surface of the workbench (1) is provided with a protective shell (4). Inside the protective shell (4) are two clamps (2). The inner walls of the two clamps (2) are provided with sliding grooves (10). Inside the two clamps (2) are six clamping blocks (14). The two sides of the twelve clamping blocks (14) are provided with sliders (11). One side of the two clamps (2) is provided with a knob (3). The surface of the two knobs (3) is provided with a bracket (12). The top surface of the two clamps (2) is provided with a top frame (7). The inside of the two top frames (7) is provided with fixing bolts (5). The surface of the two clamps (2) is provided with a rack (9). The middle of the workbench (1) is provided with a gear (6). The middle of the gear (6) is provided with a rotating shaft (8). The surface of the two clamps (2) is provided with a slot (13).

2. The tool positioning fixture for a miniature PCB tool welding machine according to claim 1, characterized in that: The two protective shells (4) are inverted L-shaped, and both protective shells (4) are welded to the surface of the workbench (1).

3. The tool positioning fixture for a miniature PCB tool welding machine according to claim 1, characterized in that: The two clamps (2) are installed in the middle of the two protective shells (4), and the two racks (9) are welded symmetrically to the surface of the clamps (2).

4. The tool positioning fixture for a miniature PCB tool welding machine according to claim 1, characterized in that: The two slots (13) are set in parallel on the surface of the fixture (2), and one end of the protective shell (4) is locked in the slot (13) of the fixture (2).

5. The tool positioning fixture for a miniature PCB tool welding machine according to claim 1, characterized in that: The gear (6) is positioned between two racks (9), and the rotating shaft (8) passes through the gear (6) and the worktable (1), with the gear (6) and the worktable (1) being axially connected.

6. The tool positioning fixture of a miniature PCB tool welding machine according to claim 1, characterized in that: Both top frames (7) are welded to the bottom surface of the fixture (2), and the fixing bolts (5) pass through the top frames (7) and are installed in the top frames (7) through the threads on the surface.

7. The tool positioning fixture for a miniature PCB tool welding machine according to claim 1, characterized in that: The clamping blocks (14) are arranged in a circular array inside the clamp (2), and both knobs (3) are locked inside the clamp (2).

8. The tool positioning fixture for a miniature PCB tool welding machine according to claim 7, characterized in that: Both brackets (12) are welded to the surface of the knob (3), and both brackets (12) are located on one side near the clamp (14). The sliders (11) on one side of the surface of the six clamps (14) are installed in the grooves (10) on the inner wall of the clamp (2), and the sliders (11) on the other side of the clamps (14) are installed in the brackets (12) on the surface of the knob (3).

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