Fixing clamp for drilling keyboard chassis

Abstract

The utility model discloses a fixing clamp for drilling a keyboard chassis, which belongs to the technical field of drilling clamps and comprises a mounting frame, a driving mechanism is arranged at one end of the mounting frame, clamping mechanisms are connected to two ends of the driving mechanism, and a bottom frame for placing the keyboard chassis is fixedly connected to the middle of the upper surface of the mounting frame. The lifting plate is driven by the motor to move upwards or downwards, so that the two racks are driven to move synchronously, the rotating shaft is driven to rotate through meshing connection between the racks and the gears, when the width of the keyboard chassis is relatively small, the shortest connecting plate drives the pressing block to press the keyboard chassis, and when the width of the keyboard chassis is relatively large, the pressing block is driven to press the keyboard chassis. When the keyboard chassis is pressed, the shortest connecting plate cannot make contact with the keyboard chassis in the rotating process, the rotating shaft continues to rotate till the long connecting plate is pressed on the keyboard chassis, the keyboard chassis of different specifications can be easily pressed and positioned by automatically replacing the corresponding pressing blocks, operation is more convenient, and stability is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling fixtures, in particular to a fixing fixture for drilling holes in a keyboard chassis. Background Art

[0002] The fixing fixture is mainly used to fix, clamp and position workpieces or objects to ensure that they maintain a stable and precise position during processing, assembly or measurement. When drilling holes in the keyboard chassis, a fixing fixture is required to fix the keyboard chassis. The Chinese patent publication number CN218555667U discloses a fixing fixture for drilling holes in the keyboard chassis. Limiting plates are longitudinally fixedly installed on both sides of the top of the workbench body, and threaded rods are transversely installed at the top center position of the workbench body. Sliding blocks are sleeved on the upper part of the outer surface of the threaded rods. Telescopic support rods are transversely fixedly installed on the upper and lower parts of the center position of one side of the sliding block. A telescopic connecting rod is longitudinally fixed on one side of the bottom of the telescopic support rod, and a fixed pressure plate is fixedly installed on the bottom of the telescopic connecting rod. The fixing fixture for drilling holes in the keyboard chassis is raised and lowered by a connecting plate and a push rod added to the top of the piston rod under the drive of a hydraulic cylinder. After the drilling is completed and the clamp frame is stretched, the connecting plate and the push rod rise through the square hole to push out the keyboard chassis. This method makes it easy to take out the keyboard chassis.

[0003] The problem with the prior art is that when the above-mentioned fixing clamp is used to fix the keyboard chassis, it is necessary to manually stretch the clamp frame outward first, and after the keyboard chassis is placed inside the clamp frame, the clamp frame is driven by the spring to reset and fix the keyboard chassis. Although this operation can fix keyboard chassis of different specifications, the clamping degree of keyboard chassis of different specifications is different, which may cause damage or looseness due to clamping too tight or too loose, and the manual labor intensity is high, which is prone to being clamped. Utility Model Content

[0004] In response to the problems existing in the prior art, the utility model provides a fixing clamp for drilling holes in a keyboard chassis, which has the advantages of low labor intensity, high safety, uniform clamping force and stable clamping. It solves the problem that the existing fixing clamps have different clamping degrees for keyboard chassis of different specifications, which may cause damage or loosening due to clamping too tightly or too loosely, and the labor intensity of manual labor is high, which makes it easy to be clamped.

[0005] The utility model is implemented as follows: a fixing fixture for drilling holes in a keyboard chassis comprises a mounting frame, a positioning plate is fixedly mounted on one end of the upper surface of the mounting frame, a driving mechanism is arranged at the other end of the mounting frame, both ends of the driving mechanism are connected with clamping mechanisms, movable grooves for the movement of the clamping mechanisms are provided on both sides of the upper surface of the mounting frame, and a base frame for placing the keyboard chassis is fixedly connected to the middle of the upper surface of the mounting frame.

[0006] As a preferred embodiment of the present invention, both ends of the positioning plate are fixedly connected with guide blocks, a plurality of rollers are rotatably installed inside the two guide blocks, and one end of the two guide blocks away from the positioning plate is fixedly connected with a mounting plate.

[0007] As a preferred embodiment of the present invention, the driving mechanism includes two guide rods, the two guide rods are fixedly mounted on the lower surface of one end of the mounting frame, and the bottoms of the two guide rods are fixedly connected to a fixing plate.

[0008] As a preferred embodiment of the utility model, a motor is fixedly installed in the middle of the lower surface of the fixed plate, a screw rod is fixedly connected to the output end of the motor, the top end of the screw rod is rotatably installed on the lower surface of the mounting frame, a screw rod sleeve is threadedly sleeved on the screw rod body, and the screw rod sleeve is fixedly installed in the middle of the lifting plate.

[0009] As a preferred embodiment of the present invention, the lower surfaces at both ends of the lifting plate are fixedly connected with sliding sleeves, the two sliding sleeves are respectively slidably mounted on two guide rods, and the upper surfaces at both ends of the lifting plate are fixedly connected with racks.

[0010] As a preferred embodiment of the present invention, a fixing seat is fixedly connected to the upper surface of one end of the mounting frame away from the positioning plate, and the clamping mechanism includes a rotating shaft, one end of which is rotatably connected to the mounting plate, and the other end of the rotating shaft rotates through the fixing seat, and the end fixing sleeve is provided with a gear.

[0011] As a preferred embodiment of the utility model, the gear is meshingly connected with the rack, a plurality of connecting plates are fixedly connected to the shaft body, a pressure block is fixedly installed on each connecting plate, and a plurality of anti-slip bumps are fixedly connected to each pressure block.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model sets a guide block and a roller to push the keyboard chassis toward the direction close to the positioning plate, so that the keyboard chassis contacts the rollers on both sides and drives the rollers to rotate. The keyboard chassis is gradually centered under the limit of the rollers on both sides, thereby adjusting the orientation of the keyboard chassis, thereby being able to position keyboard chassis of different specifications, and having a wider range of applications.

[0014] 2. The utility model drives the lead screw to rotate through a motor, and the lead screw and the lead screw sleeve are threadedly matched, so that the lead screw sleeve drives the lifting plate to move upward or downward accordingly, thereby driving the two racks to move synchronously, and through the meshing connection between the rack and the gear, the rotating shaft is driven to rotate. By setting two guide rods, the lifting plate can be limited and guided, thereby improving the stability of the lifting plate during movement, thereby ensuring good meshing of the rack and the gear and improving transmission accuracy.

[0015] 3. The utility model arranges the lengths of the connection plates in order from short to long. When the width of the keyboard chassis is relatively small, the shortest connection plate gradually drives the pressure block to press on the keyboard chassis as the shaft rotates. When the width of the keyboard chassis is relatively large, the shortest connection plate cannot contact the keyboard chassis during rotation, and the shaft continues to rotate until the longer connection plate is pressed on the keyboard chassis. Through this arrangement, the corresponding pressure block can be automatically replaced as the shaft rotates, thereby easily achieving the pressing and positioning of keyboard chassis of different specifications, making the operation more convenient and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the bottom frame in the utility model;

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of the local structure.

[0020] In the figure: 1, mounting frame; 101, movable slot; 2, driving mechanism; 3, positioning plate; 4, clamping mechanism; 5, base frame; 6, fixed seat; 201, guide rod; 202, lifting plate; 203, sliding sleeve; 204, screw rod; 205, screw rod sleeve; 206, fixed plate; 207, motor; 208, rack; 301, guide block; 302, roller; 303, mounting plate; 401, rotating shaft; 402, connecting plate; 403, pressure block; 404, anti-slip bump; 405, gear. DETAILED DESCRIPTION

[0021] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0022] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 4 As shown, an embodiment of the utility model provides a fixing fixture for drilling holes in a keyboard chassis, comprising a mounting frame 1, a positioning plate 3 is fixedly mounted on one end of the upper surface of the mounting frame 1, a driving mechanism 2 is arranged at the other end of the mounting frame 1, both ends of the driving mechanism 2 are connected to clamping mechanisms 4, movable grooves 101 for the movement of the clamping mechanism 4 are opened on both sides of the upper surface of the mounting frame 1, and a base frame 5 for placing the keyboard chassis is fixedly connected to the middle of the upper surface of the mounting frame 1.

[0024] Furthermore, both ends of the positioning plate 3 are fixedly connected with guide blocks 301 , a plurality of rollers 302 are rotatably installed inside the two guide blocks 301 , and one end of the two guide blocks 301 away from the positioning plate 3 is fixedly connected with a mounting plate 303 .

[0025] In the present application, the inner sides of the two guide blocks 301 are provided with beveled surfaces, and the rollers 302 are installed along the beveled surfaces. When working, the keyboard chassis is placed on the base frame 5, and one end is roughly placed between the two guide blocks 301, and then the keyboard chassis is pushed in the direction close to the positioning plate 3, so that the keyboard chassis contacts the rollers 302 on both sides and drives the rollers 302 to rotate. The keyboard chassis is gradually centered under the limitation of the rollers 302 on both sides, thereby realizing the adjustment of the orientation of the keyboard chassis. Through this setting, keyboard chassis of different specifications can be positioned, and the scope of application is wider.

[0026] Furthermore, the driving mechanism 2 includes two guide rods 201, which are fixedly mounted on the lower surface of one end of the mounting frame 1, and the bottoms of the two guide rods 201 are fixedly connected to a fixing plate 206, and a motor 207 is fixedly mounted in the middle of the lower surface of the fixing plate 206, and the output end of the motor 207 is fixedly connected to a screw rod 204, and the top of the screw rod 204 is rotatably mounted on the lower surface of the mounting frame 1, and a screw rod sleeve 205 is threadedly sleeved on the rod body of the screw rod 204, and the screw rod sleeve 205 is fixedly mounted in the middle of the lifting plate 202, and the lower surfaces of both ends of the lifting plate 202 are fixedly connected to sliding sleeves 203, and the two sliding sleeves 203 are respectively slidably sleeved on the two guide rods 201, and the upper surfaces of both ends of the lifting plate 202 are fixedly connected to racks 208.

[0027] In the present application, the screw rod 204 is driven to rotate by starting the motor 207, and the screw rod 204 is threadedly matched with the screw rod sleeve 205, so that the screw rod sleeve 205 drives the lifting plate 202 to move upward or downward accordingly, thereby driving the two racks 208 to move synchronously, and the meshing connection between the rack 208 and the gear 405 drives the rotating shaft 401 to rotate. By setting two guide rods 201, the lifting plate 202 can be limited and guided, thereby improving the stability of the lifting plate 202 during movement, thereby ensuring that the rack 208 and the gear 405 are well meshed and the transmission accuracy is improved.

[0028] Furthermore, a fixing seat 6 is fixedly connected to the upper surface of one end of the mounting frame 1 away from the positioning plate 3, and the clamping mechanism 4 includes a rotating shaft 401, one end of the rotating shaft 401 is rotatably connected to the mounting plate 303, and the other end of the rotating shaft 401 rotates through the fixing seat 6, and the end fixing sleeve is provided with a gear 405, and the gear 405 is meshed with the rack 208. A plurality of connecting plates 402 are fixedly connected to the shaft body of the rotating shaft 401, and a pressure block 403 is fixedly installed on each connecting plate 402, and a plurality of anti-slip protrusions 404 are fixedly connected to each pressure block 403.

[0029] In the specific setting, four connecting plates 402 are grouped as a group and are arranged in a circle on the rotating shaft 401. Several groups are arranged on each rotating shaft 401, and the lengths of the connecting plates 402 in each group are arranged in sequence from short to long. When the width of the keyboard chassis is relatively small, the shortest connecting plate 402 gradually drives the pressure block 403 to press on the keyboard chassis as the rotating shaft 401 rotates. When the width of the keyboard chassis is relatively large, the shortest connecting plate 402 cannot contact the keyboard chassis during rotation, and the rotating shaft 401 continues to rotate until the longer connecting plate 402 is pressed on the keyboard chassis. Through this setting, the corresponding pressure block 403 can be automatically replaced as the rotating shaft 401 rotates, thereby easily realizing the pressing and positioning of keyboard chassis of different specifications, and the operation is more convenient and the stability is also higher.

[0030] The working principle of this utility model:

[0031] The keyboard chassis is placed on the chassis 5, with one end roughly placed between the two guide blocks 301, and then the keyboard chassis is pushed toward the direction close to the positioning plate 3, so that the keyboard chassis contacts the rollers 302 on both sides and drives the rollers 302 to rotate. The keyboard chassis is gradually centered under the limit of the rollers 302 on both sides to adjust the orientation of the keyboard chassis, and the motor 207 is started to drive the screw rod 204 to rotate. The screw rod 204 and the screw rod sleeve 205 are threadedly matched, so that the screw rod sleeve 205 drives the lifting plate 202 to move upward or downward accordingly, thereby driving the two The rack 208 moves synchronously, and the meshing connection between the rack 208 and the gear 405 drives the shaft 401 to rotate. When the width of the keyboard chassis is relatively small, the shortest connecting plate 402 gradually drives the pressure block 403 to press on the keyboard chassis as the shaft 401 rotates. When the width of the keyboard chassis is relatively large, the shortest connecting plate 402 cannot contact the keyboard chassis during rotation, and the shaft 401 continues to rotate until the longer connecting plate 402 is pressed on the keyboard chassis, thereby easily achieving the pressing and positioning of keyboard chassis of different specifications.

[0032] In summary, the keyboard chassis drilling fixing fixture, by setting the guide block 301 and the roller 302, pushes the keyboard chassis toward the direction close to the positioning plate 3, so that the keyboard chassis contacts the rollers 302 on both sides and drives the rollers 302 to rotate. Under the limit of the rollers 302 on both sides, the keyboard chassis is gradually centered, and the orientation of the keyboard chassis is adjusted, so that keyboard chassis of different specifications can be positioned, and the application range is wider. The starting motor 207 drives the screw rod 204 to rotate, and the screw rod 204 and the screw rod sleeve 205 are threadedly matched, so that the screw rod sleeve 205 drives the lifting plate 202 to move upward or downward accordingly, thereby driving the two racks 208 to move synchronously, and the meshing connection between the rack 208 and the gear 405 drives the rotating shaft 401 to rotate. By setting two guide rods 201, it can It can limit and guide the lifting plate 202, improve the stability of the lifting plate 202 during movement, thereby ensuring good meshing between the rack 208 and the gear 405, and improving the transmission accuracy. By arranging the connecting plates 402 in order from short to long, when the width of the keyboard chassis is relatively small, the shortest connecting plate 402 gradually drives the pressure block 403 to press on the keyboard chassis as the rotating shaft 401 rotates. When the width of the keyboard chassis is relatively large, the shortest connecting plate 402 cannot contact the keyboard chassis during rotation, and the rotating shaft 401 continues to rotate until the longer connecting plate 402 is pressed on the keyboard chassis. Through this arrangement, the corresponding pressure block 403 can be automatically replaced as the rotating shaft 401 rotates, thereby easily realizing the pressing and positioning of keyboard chassis of different specifications, and the operation is more convenient and the stability is higher.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for drilling holes in a keyboard chassis, comprising a mounting frame (1), characterized in that: A positioning plate (3) is fixedly mounted on one end of the upper surface of the mounting frame (1); a driving mechanism (2) is arranged on the other end of the mounting frame (1); both ends of the driving mechanism (2) are connected to clamping mechanisms (4); movable grooves (101) for the clamping mechanisms (4) to move are provided on both sides of the upper surface of the mounting frame (1); and a base frame (5) for placing a keyboard chassis is fixedly connected to the middle of the upper surface of the mounting frame (1).

2. A fixing fixture for drilling a keyboard chassis as claimed in claim 1, characterized in that: Both ends of the positioning plate (3) are fixedly connected to guide blocks (301), a plurality of rollers (302) are rotatably mounted inside the two guide blocks (301), and one end of the two guide blocks (301) away from the positioning plate (3) is fixedly connected to a mounting plate (303).

3. A fixing fixture for drilling a keyboard chassis as claimed in claim 2, characterized in that: The driving mechanism (2) comprises two guide rods (201), the two guide rods (201) are fixedly mounted on the lower surface of one end of the mounting frame (1), and the bottoms of the two guide rods (201) are fixedly connected to a fixing plate (206).

4. A fixing fixture for drilling a keyboard chassis as claimed in claim 3, characterized in that: A motor (207) is fixedly mounted in the middle of the lower surface of the fixed plate (206); the output end of the motor (207) is fixedly connected to a screw rod (204); the top end of the screw rod (204) is rotatably mounted on the lower surface of the mounting frame (1); a screw rod sleeve (205) is threadedly sleeved on the rod body of the screw rod (204); and the screw rod sleeve (205) is fixedly mounted in the middle of the lifting plate (202).

5. A fixing fixture for drilling a keyboard chassis as claimed in claim 4, characterized in that: The lower surfaces at both ends of the lifting plate (202) are fixedly connected with sliding sleeves (203), and the two sliding sleeves (203) are respectively slidably mounted on the two guide rods (201), and the upper surfaces at both ends of the lifting plate (202) are fixedly connected with racks (208).

6. A fixing fixture for drilling a keyboard chassis as claimed in claim 5, characterized in that: A fixing seat (6) is fixedly connected to the upper surface of one end of the mounting frame (1) away from the positioning plate (3), and the clamping mechanism (4) comprises a rotating shaft (401), one end of the rotating shaft (401) is rotatably connected to the mounting plate (303), and the other end of the rotating shaft (401) is rotatably passed through the fixing seat (6), and a gear (405) is provided on the end fixing sleeve.

7. A fixing fixture for drilling a keyboard chassis as claimed in claim 6, characterized in that: The gear (405) is meshingly connected with the rack (208); a plurality of connecting plates (402) are fixedly connected to the shaft body of the rotating shaft (401); a pressing block (403) is fixedly installed on each of the connecting plates (402); and a plurality of anti-slip protrusions (404) are fixedly connected to each of the pressing blocks (403).

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