Fixing mechanical clamp for machining

Abstract

The utility model discloses a fixed mechanical fixture for machining, and relates to the technical field of mechanical fixtures, the fixed mechanical fixture comprises a fixing mechanism, a supporting mechanism and a clamping mechanism, the supporting mechanism comprises two supporting plates, the clamping mechanism comprises movable plates arranged at the tops of the two supporting plates respectively, rotating shafts are installed on the inner walls of the movable plates, and the rotating shafts are connected with the supporting plates. And mounting plates are mounted at the opposite ends of the two rotating shafts correspondingly, adjusting lead screws are arranged on the inner walls of the opposite ends of the two mounting plates correspondingly, and the outer walls of the tops and the bottoms of the adjusting lead screws are sleeved with clamping plates correspondingly. The distance between the two supporting plates can be adjusted through movement of the movable rack, the height of the movable plate can be adjusted through movement of the movable toothed plate, and meanwhile the distance between the two clamping plates can be adjusted through rotation of the adjusting lead screw, so that the clamp can be adjusted according to the shape and the size of a machined part; and therefore, the clamp can stably clamp and fix machined parts with different shapes and sizes.

Description

Technical Field

[0001] This utility model relates to the field of mechanical clamping technology, specifically to a fixed mechanical clamping fixture for machining. Background Technology

[0002] Mechanical fixtures play a crucial role in the machinery manufacturing process. They are devices used to fix the workpiece in place, ensuring that it occupies the correct position during machining or inspection, thereby guaranteeing machining accuracy and operational safety.

[0003] A machining fixture with publication number CN215967588U includes a base with a groove inside. A first motor is installed at the bottom of the inner wall of the groove, and a first threaded column is fixedly connected to the output shaft of the first motor. The advantages of this machining fixture are that, by incorporating a first motor, a first threaded column, a threaded cylinder, a first toothed plate, a second toothed plate, and a gear, the first motor drives the first threaded column to rotate, causing the threaded cylinder to move on the surface of the first threaded column. This causes the threaded cylinder to move the first toothed plate and a connecting block, which in turn causes the connecting block to move a first L-shaped clamping plate. The first toothed plate then drives the gear, which in turn drives the second toothed plate, which in turn drives the second L-shaped clamping plate. This allows the first and second L-shaped clamping plates to move closer together or further apart, facilitating the clamping and fixing of parts of different sizes.

[0004] The existing technology has the following shortcomings: the existing mechanical fixtures cannot be easily adjusted according to the shape and size of the workpiece during the clamping process. When clamping irregularly shaped workpieces, the fixtures are affected by the shape of the workpieces, making it impossible for the fixtures to clamp them stably. Specific fixtures are required to fix them, which increases the processing cost of irregularly shaped workpieces and affects the processing efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a fixed mechanical fixture for machining. The distance between the two support plates can be adjusted by moving the movable rack, the height of the movable plate can be adjusted by moving the movable toothed plate, and the distance between the two clamping plates can be adjusted by rotating the lead screw. This allows the fixture to be adjusted according to the shape and size of the workpiece, so that the fixture can stably clamp and fix workpieces of different shapes and sizes, thereby solving the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixed mechanical clamp for machining, including a fixing mechanism, and further comprising:

[0007] A support mechanism located on top of the fixed mechanism and a clamping mechanism located on top of the support mechanism;

[0008] The support mechanism includes two support plates respectively disposed at both ends of the top of the fixing mechanism;

[0009] The clamping mechanism includes movable plates respectively disposed on the top of two support plates. Movable toothed plates are fixedly installed on the bottom of each of the two movable plates. A rotating shaft is rotatably installed on the inner wall of the opposite side of each of the two movable plates. A third motor is installed on one of the movable plates. The third motor drives the rotating shaft connected to its movable plate. Mounting plates are fixedly installed on the opposite ends of the two rotating shafts. Adjusting screws are provided on the opposite sides of the two mounting plates. Clamping plates are threaded onto the upper and lower outer walls of the adjusting screws.

[0010] Preferably, the fixing mechanism includes a fixing plate, with a mounting base fixedly installed at both ends of the bottom of the fixing plate, and a slide rail fixedly installed on both sides of the top of the fixing plate, with two support plates slidably connected to both ends of each slide rail.

[0011] Preferably, the top of the support plate is provided with a storage groove for placing the movable toothed plate, and the movable toothed plate is slidably installed in the storage groove. A second motor is fixedly installed on one outer wall of the support plate, and the output shaft of the second motor is fixedly sleeved with a drive gear that meshes with the adjacent movable toothed plate.

[0012] Preferably, a limiting groove communicating with the storage groove is provided on the side of the storage groove away from the drive gear. A telescopic rod is fixedly connected to the top of the inner wall of the limiting groove, and a slider is fixedly connected to the bottom of the telescopic rod. The slider is fixedly connected to the outer wall of the adjacent movable tooth plate on the side away from the drive gear.

[0013] Preferably, each of the two mounting plates has a mounting groove on its inner wall at one opposite end. Each mounting groove is rotatably connected to an adjusting screw. The top and bottom of the inner wall of the mounting groove are movably connected to the outer walls of the two clamping plates at the same end.

[0014] Preferably, a first motor is fixedly installed at the middle position of the bottom of the fixed plate. The output shaft of the first motor passes through the fixed plate and is fixedly sleeved with a rotating gear above the fixed plate. A rack meshes on both sides of the rotating gear, and each rack is connected to a support plate.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. The first motor operates through the meshing action between the rotating gear and the two movable racks, which can adjust the distance between the two support plates. At the same time, the second motor operates through the meshing action between the driving gear and the movable rack, which can adjust the height of the two movable plates. The rotation of the adjusting screw can adjust the distance between the two clamping plates at the same end. This allows the fixture to be easily adjusted according to the shape and size of the workpiece, making it easy to clamp and fix irregularly shaped workpieces. The fixture can fix workpieces of different shapes and sizes, keeping them stable during processing and improving the efficiency of machining.

[0017] 2. The movement of the two support plates can be limited by the slide rail, so that the support plates remain stable during movement. At the same time, the limiting groove can limit the movement of the slider. The telescopic rod can be used to pull and limit it, so that the movable plate remains stable during height adjustment. The mounting groove can limit the movement of the clamping plate, so that the clamping plate remains stable during adjustment. Thus, the fixture can stably clamp and fix the workpiece. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a partial cross-sectional view of the present invention.

[0021] Figure 3 This is an exploded view of the fixing mechanism and the supporting mechanism of this utility model.

[0022] Figure 4 This is an exploded view of the clamping mechanism of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Fixing mechanism; 101. Fixing plate; 102. Mounting base; 103. Slide rail;

[0025] 2. Support mechanism; 201. Support plate; 202. Movable rack; 203. First motor; 204. Rotating gear; 205. Storage slot; 206. Limiting slot;

[0026] 3. Clamping mechanism; 301. Movable plate; 302. Movable toothed plate; 303. Second motor; 304. Drive gear; 305. Slider; 306. Telescopic rod; 307. Rotating shaft; 308. Third motor; 309. Mounting plate; 310. Mounting groove; 311. Adjusting screw; 312. Clamping plate. Detailed Implementation

[0027] This utility model provides, for example Figure 1 The mechanical clamp for machining shown includes a fixing mechanism 1, a support mechanism 2 disposed on the top of the fixing mechanism 1, and a clamping mechanism 3 disposed on the top of the support mechanism 2.

[0028] To facilitate the clamping of workpieces of different lengths, such as Figure 1-4 As shown, the support mechanism 2 includes two support plates 201 respectively disposed at the top ends of the fixing mechanism 1. The clamping mechanism 3 includes movable plates 301 respectively disposed on the top of the two support plates 201. Movable toothed plates 302 are fixedly installed on the bottom of each of the two movable plates 301. A rotating shaft 307 is rotatably installed on the inner wall of the opposite side of each of the two movable plates 301. A third motor 308 is installed on one of the movable plates 301. The third motor 308 drives the rotating shaft 307 connected to its movable plate 301. Mounting plates 309 are fixedly installed on the opposite ends of the two rotating shafts 307. On opposite sides of 09, there are adjusting screws 311. The upper and lower outer walls of the adjusting screws 311 are threaded with clamping plates 312. The height of the movable plate 301 can be adjusted by moving the movable toothed plate 302 up and down inside the support plate 201. The rotation of the adjusting screws 311 can adjust the distance between the two clamping plates 312 at the same end, so that the four clamping plates 312 can clamp and fix the two ends of the workpieces of different sizes. At the same time, the third motor 308 drives one of the rotating shafts 307 to rotate, which can cause the workpiece to flip, so that the workpiece can be processed in different positions conveniently.

[0029] To ensure the stability of the support plate 201 during adjustment, such as Figure 1-3As shown, the fixing mechanism 1 includes a fixing plate 101. A mounting base 102 is fixedly installed at both ends of the bottom of the fixing plate 101. A slide rail 103 is fixedly installed on both sides of the top of the fixing plate 101. Two support plates 201 are slidably connected to both ends of each slide rail 103. A first motor 203 is fixedly installed at the middle of the bottom of the fixing plate 101. The output shaft of the first motor 203 passes through the fixing plate 101 and is located above the fixing plate 101. A rotating gear 204 is fixedly sleeved on the output shaft, and a rack meshes on both sides of the rotating gear 204. 202, each rack 202 is connected to a support plate 201. The fixing plate 101 can install and fix the first motor 203. The operation of the first motor 203 causes the rotating gear 204 to rotate. Through the meshing action between the rotating gear 204 and the movable rack 202, the two movable racks 202 move relative to each other or away from each other on the top of the fixing plate 101, which in turn drives the two support plates 201 to move relative to each other or away from each other on the outer wall of the slide rail 103, thereby stably adjusting the distance between the two support plates 201.

[0030] To ensure the stability of the movable plate 301 during height adjustment, such as Figure 2-4 As shown, the top of the support plate 201 has a storage slot 205 for placing the movable toothed plate 302, and the movable toothed plate 302 is slidably installed in the storage slot 205. A second motor 303 is fixedly installed on one outer wall of the support plate 201. The output shaft of the second motor 303 is fixedly sleeved with a drive gear 304 that meshes with the adjacent movable toothed plate 302. A limiting groove 206 communicating with the storage slot 205 is opened on the side away from the drive gear 304. A telescopic rod 306 is fixedly connected to the top of the inner wall of the limiting groove 206, and a slider 305 is fixedly connected to the bottom of the telescopic rod 306. 305 is fixedly connected to the outer wall of the adjacent movable toothed plate 302 away from the drive gear 304. The storage groove 205 can store the movable toothed plate 302. The second motor 303 works to make the drive gear 304 rotate. Through the meshing action between the drive gear 304 and the movable toothed plate 302, it can move along the inner wall of the storage groove 205. At the same time, the limiting groove 206 and the telescopic rod 306 can limit the movement of the slider 305, so that the movable toothed plate 302 remains stable during the movement, and thus the movable plate 301 remains stable during the height adjustment process.

[0031] To ensure the stability of the clamping plate 312 during adjustment, such as Figure 2 and Figure 4As shown, each of the two mounting plates 309 has a mounting groove 310 on its inner wall at one of its opposite ends. Each mounting groove 310 is rotatably connected to an adjusting screw 311. The top and bottom of the inner wall of the mounting groove 310 are movably connected to the outer walls of the two clamping plates 312 at the same end. The mounting groove 310 can install and fix the adjusting screw 311. The rotation of the adjusting screw 311 allows the clamping plates 312 on its top and bottom outer sides to move along the inner wall of the mounting groove 310 on their outer sides, thereby keeping the clamping plates 312 stable during the adjustment process, so that the clamping plates 312 can stably clamp and fix the workpiece.

[0032] When machining a workpiece, the mechanical fixture is mounted on the surface of the machine tool or machining equipment via the mounting base 102. The mechanical fixture is connected to the control equipment of the machining equipment via wiring. The control equipment then activates the first motor 203, driving the rotating gear 204 to rotate. Through the meshing of the gears, the two movable racks 202 move relative to or away from each other on the top of the fixed plate 101, thereby causing the two support plates 201 to move relative to or away from each other on the outer sides of the two slide rails 103. This allows adjustment of the length of the space inside the fixture. Simultaneously, the control equipment activates the second motor 303, driving the drive gear 304 to rotate. Through the meshing of the drive gear 304 and the movable gear plate 302, it moves up and down along the inner wall of the receiving groove 205. Simultaneously, the slider 305 moves along the inner wall of the limiting groove 206, thereby extending or retracting the telescopic rod 306, allowing the movable gear plate 302 to move... The process remains stable, allowing for height adjustment of the movable plate 301. This enables the fixture to be easily adjusted according to the height of the workpiece, ensuring that both ends of the workpiece contact the two mounting plates 309. By rotating the two adjusting screws 311, the top and bottom clamping plates 312 can move along the inner wall of the mounting groove 310 on their outer sides. This allows the two clamping plates 312 at the same end to clamp and fix the outer walls of both ends of the workpiece, enabling the fixture to easily clamp and fix workpieces of different shapes and sizes. Simultaneously, the control device enables the third motor 308 to rotate, causing the rotating shaft 307 to rotate. This allows the mounting plate 309 to rotate the workpiece, facilitating processing at different positions of the workpiece and improving the machining efficiency. This embodiment specifically solves the problem of low machining efficiency caused by the inability of existing mechanical fixtures to easily clamp and fix irregularly shaped workpieces of different shapes and sizes.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stationary mechanical jig for machining, comprising a fixing mechanism (1), characterized in that, Also include: Supporting mechanism (2) arranged at the top of the fixed mechanism (1) and clamping mechanism (3) arranged at the top of the supporting mechanism (2); The supporting mechanism (2) comprises two supporting plates (201) arranged at the top of the fixed mechanism (1) respectively; The clamping mechanism (3) comprises two movable plates (301) arranged at the top of the two supporting plates (201) respectively, two movable plates (301) are fixedly installed with movable toothed plates (302) at the bottom, two movable plates (301) are rotatably installed with a rotating shaft (307) on the inner wall of the opposite side, one of the movable plates (301) is provided with a third motor (308), the third motor (308) is drivingly connected with the rotating shaft (307) on the movable plate (301), the opposite ends of the two rotating shafts (307) are fixedly installed with mounting plates (309), the opposite sides of the two mounting plates (309) are provided with adjusting screws (311), the outer walls of the upper and lower parts of the adjusting screws (311) are threadedly connected with clamping plates (312).

2. The fixture for holding a workpiece for machining according to claim 1, wherein: The fixed mechanism (1) comprises a fixed plate (101), the bottom of the fixed plate (101) is fixedly installed with a mounting seat (102) at both ends, the top of the fixed plate (101) is fixedly installed with a sliding rail (103) at both sides, and the two supporting plates (201) are slidingly connected to the two ends of each sliding rail (103).

3. The fixture for holding a workpiece for machining according to claim 2, wherein: The top of the supporting plate (201) is provided with a receiving groove (205) for placing the movable toothed plate (302), and the movable toothed plate (302) is slidingly installed in the receiving groove (205), a second motor (303) is fixedly installed on the outer wall of one side of the supporting plate (201), and the output shaft of the second motor (303) is fixedly sleeved with a driving gear (304) engaged with the adjacent movable toothed plate (302).

4. The fixture for holding a workpiece for machining according to claim 3, wherein: The side of the receiving groove (205) away from the driving gear (304) is provided with a limiting groove (206) communicating with the receiving groove (205), the inner wall of the limiting groove (206) is fixedly connected with a telescopic rod (306) at the top, the bottom of the telescopic rod (306) is fixedly connected with a sliding block (305), and the sliding block (305) is fixedly connected with the outer wall of the side of the adjacent movable toothed plate (302) away from the driving gear (304).

5. The fixture for holding a workpiece for machining according to claim 1, wherein: The inner wall of the opposite end of the two mounting plates (309) is provided with a mounting groove (310), and the mounting groove (310) is rotatably connected with the adjusting screw (311) respectively, the inner wall of the mounting groove (310) is movably connected with the outer wall of the two clamping plates (312) at the top and the bottom.

6. The fixture for holding a workpiece for machining according to claim 2, wherein: The bottom of the fixed plate (101) is fixedly installed with a first motor (203) at the middle position, the output shaft of the first motor (203) penetrates through the fixed plate (101) and is fixedly sleeved with a rotating gear (204) above the fixed plate (101), the rotating gear (204) is meshed with a rack (202) on both sides, and each rack (202) is connected with a supporting plate (201).

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