Machining workpiece clamping jig

Abstract

The utility model relates to the technical field of workpiece clamps, in particular to a machining workpiece clamping jig which comprises an object placing plate, an adjusting seat and a fixing plate, vertical plates are connected to the two sides of the outer wall of the upper end of the object placing plate through screws, driving screw rods are connected to the interiors of the vertical plates in a threaded mode, and the adjusting seat is arranged on the outer wall of one end of each driving screw rod. Clamping sleeves are connected to the lower ends of the outer walls of the two sides of the adjusting base through screws, clamping plates are connected to the interiors of the clamping sleeves through pin shafts, sliding grooves are formed in the outer walls of the sides, facing the adjusting base, of the clamping plates, sliding blocks are slidably installed in the sliding grooves, a fixing plate is connected to the interior of the adjusting base through screws, and an adjusting screw rod is in threaded connection to the interior of the fixing plate; a linkage base is arranged on the outer wall of one end of the adjusting screw rod, it is guaranteed that the using angle of the clamping plate can adapt to the surface shape of a workpiece, the attaching and clamping requirements of the workpiece with the complex shape are met, the attaching tightness between the clamping plate and the outer wall of the workpiece is guaranteed, and it is guaranteed that the clamping plate stably clamps the workpiece.

Description

Technical Field

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

[0002] Machining refers to the processing of workpieces by changing their shape, size, or properties using machine tools. It is one of the core production technologies in the manufacturing industry. Its principle is to use tools such as cutting tools and grinding wheels to remove material or change the shape of the workpiece through cutting, grinding, drilling, milling, etc. Machining workpiece clamping fixtures are devices used on machine tools to clamp workpieces and guide cutting tools. They usually use positioning elements to adjust the clamping position and clamping force, thereby achieving the clamping and fixing of the workpiece and ensuring the stability of the subsequent machining process of the machine tool after the workpiece is clamped.

[0003] CN218341539U discloses a quick-clamping fixture for machining, comprising a worktable and two sliding plates, both of which are slidably connected to the surface of the worktable. The fixture further includes a moving component, disposed inside the worktable, used to mechanically drive the two sliding plates to move towards or away from each other, and also to limit the position of the two sliding plates. This invention, by incorporating a limiting clamping component, a square hole, a support plate, a moving component, and a limiting component, allows the machining fixture to adapt to workpieces of different shapes and firmly position them on the worktable, thereby improving the applicability of the machining fixture of this application.

[0004] While the existing technology CN218341539U has many advantages in use, it still has the following problems: the adjustment of the clamping plate is not perfect. Since the clamping plate cannot be adjusted during the clamping process, it has poor adaptability to workpieces with inclined surfaces, which affects the clamping firmness of workpieces with inclined surfaces. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a workpiece clamping fixture for machining.

[0006] The technical solution adopted by this utility model to solve its technical problem is a workpiece clamping fixture for machining, including a placement plate, an adjusting seat, and a fixing plate. Vertical plates are screwed to both sides of the upper outer wall of the placement plate. A drive screw is threaded into the interior of the vertical plate. An adjusting seat is provided on the outer wall of one end of the drive screw. Sleeves are screwed to the lower ends of both outer walls of the adjusting seat. A clamping plate is connected to the sleeve by a pin. A sliding groove is formed on the outer wall of the clamping plate facing the adjusting seat. A slider is slidably installed inside the sliding groove. A fixing plate is screwed into the adjusting seat. An adjusting screw is threaded into the fixing plate. A linkage seat is provided on the outer wall of one end of the adjusting screw.

[0007] By adopting the above technical solution, the operator can drive the linkage seat to move horizontally by rotating the adjusting screw, thereby allowing the clamping plate to be rotated and adjusted in angle through the ferrule. The sliding cooperation of the slider and the slide groove ensures the stability and smoothness of the clamping plate angle adjustment, thus ensuring that the clamping plate's operating angle can adapt to the surface shape of the workpiece, meeting the fitting and clamping requirements of complex-shaped workpieces, ensuring a tight fit between the clamping plate and the outer wall of the workpiece, and guaranteeing stable clamping of the workpiece by the clamping plate. By rotating the drive screw, the operator can adjust the operating position of the adjusting seat and the clamping plate on the upper part of the placement plate. After the operator places the workpiece on the upper part of the placement plate, the simultaneous clamping of both sides of the workpiece by the clamping plates on both sides can achieve the clamping stability of the workpiece and can adapt to the positioning and clamping of workpieces of different sizes.

[0008] Specifically, the lower outer wall of the shelf is welded with a fixing seat on both sides, and the outer wall of the fixing seat is provided with equally spaced parallel fixing holes.

[0009] By adopting the above technical solution, the staff can quickly fix the mounting base to the machine tool workbench using external bolts. The mounting holes at different points can adapt to different fixing position requirements, satisfying the universality and adaptability of the mounting plate, while ensuring the fixing firmness of the mounting plate.

[0010] Specifically, a first bearing is interference-fitted onto one side of the outer wall of the adjusting seat, and one end of the drive screw is interference-fitted onto the inner ring of the first bearing. The drive screw is rotatably connected to the adjusting seat through the first bearing.

[0011] By adopting the above technical solution, when the rotational motion of the drive screw is converted into the linear motion of the adjusting seat, the first bearing can reduce the frictional resistance between the drive screw and the adjusting seat, making the adjustment process smoother and reducing the operating torque. At the same time, the supporting effect of the first bearing can prevent the drive screw from shifting due to force, ensuring the straightness of the lateral movement of the adjusting seat, improving the workpiece positioning accuracy, and thus adjusting the position of the adjusting seat and the clamping plate, enabling simultaneous clamping and fixing of both sides of the workpiece on the upper part of the placement plate.

[0012] Specifically, a second bearing is interference-fitted onto one side of the outer wall of the linkage seat, and one end of the adjusting screw is interference-fitted onto the inner ring of the second bearing. The adjusting screw is rotatably connected to the linkage seat through the second bearing.

[0013] By adopting the above technical solution, when the adjusting screw is rotated, the second bearing can reduce the wear between the adjusting screw and the linkage seat, ensure the flexibility of the adjusting screw rotation, and at the same time prevent the linkage seat from rotating synchronously with the adjusting screw, so that the rotational motion of the adjusting screw is efficiently converted into the linear motion of the linkage seat, which in turn drives the slider to slide through the connecting parts, thereby pushing the clamping plate to rotate and adjusting the use angle of the clamping plate.

[0014] Specifically, both the inner wall of the slide groove and the outer wall of the slider are designed with a convex shape. The slider has a connecting piece welded to the outer wall of the side protruding from the slide groove, and the connecting piece is connected to the linkage seat by a pin.

[0015] By adopting the above technical solution, the convex fit structure of the slide groove and the slider can prevent the slider from coming out of the slide groove, while restricting the slider's rotational freedom and ensuring that it can only slide in a straight line along the slide groove direction. The slider is connected to the linkage seat pin through the connecting part to form a linkage transmission mechanism. When the linkage seat moves, it can drive the slider to slide in the slide groove through the connecting part, thereby pushing the clamping plate to rotate around the sleeve pin, so that the clamping plate can adapt to the inclined surface of the workpiece and enhance the clamping compatibility of irregularly shaped workpieces.

[0016] Specifically, the size of the clamping plate is adapted to the size of the end face of the adjusting seat, and the lower outer wall of the adjusting seat is in contact with the upper outer wall of the placement plate.

[0017] By adopting the above technical solution, the size of the clamping plate is adapted to the end face of the adjusting seat, which can ensure that the clamping plate forms a complete clamping plane at the front end of the adjusting seat, and the lower end of the adjusting seat contacts the placement plate to form a stable support base, reducing the shaking of the adjusting seat when it moves laterally.

[0018] The beneficial effects of this utility model are:

[0019] (1) The machining workpiece clamping fixture described in this utility model can ensure the stability and smoothness of the clamping plate angle adjustment, thereby ensuring that the use angle of the clamping plate can adapt to the surface shape of the workpiece, meet the fitting and clamping requirements of complex shaped workpieces, ensure the tight fit between the clamping plate and the outer wall of the workpiece, and ensure the stable clamping of the workpiece by the clamping plate.

[0020] (2) The machining workpiece clamping fixture described in this utility model can adjust the position of the adjusting seat and the clamping plate on the upper end of the placement plate. After the worker places the workpiece on the upper end of the placement plate, the workpiece is clamped synchronously on both sides by the clamping plates on both sides, which can achieve the clamping stability of the workpiece and can adapt to the positioning and clamping of workpieces of different sizes. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the main structure of the shelf of this utility model;

[0023] Figure 2 This is an exploded view of the adjusting seat structure of this utility model;

[0024] Figure 3 This is an exploded view of the fixing plate structure of this utility model;

[0025] Figure 4 This is an exploded view of the linkage seat structure of this utility model.

[0026] In the diagram: 1. Shelf; 11. Fixing base; 12. Vertical plate; 13. Drive screw; 2. Adjusting base; 21. First bearing; 22. Sleeve; 23. Clamping plate; 24. Slide groove; 25. Slider; 26. Connector; 3. Fixing plate; 31. Adjusting screw; 32. Linkage base; 33. Second bearing. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the machining workpiece clamping fixture of this utility model includes a placement plate 1, an adjusting seat 2, and a fixing plate 3. Both sides of the upper outer wall of the placement plate 1 are screwed to vertical plates 12. A drive screw 13 is threaded into the interior of the vertical plates 12. An adjusting seat 2 is provided on the outer wall of one end of the drive screw 13. Sleeves 22 are screwed to the lower ends of both outer walls of the adjusting seat 2. A clamping plate 23 is connected to the sleeve 22 by a pin. A sliding groove 24 is provided on the outer wall of the clamping plate 23 facing the adjusting seat 2. A slider 25 is slidably installed inside the sliding groove 24. A fixing plate 3 is screwed into the interior of the adjusting seat 2. An adjusting screw 31 is threaded into the interior of the fixing plate 3. A linkage seat 32 is provided on the outer wall of one end of the adjusting screw 31.

[0029] In use, the operator can drive the linkage seat 32 to move horizontally by rotating the adjusting screw 31, thereby allowing the clamping plate 23 to be rotated and adjusted in angle through the ferrule 22. The sliding cooperation of the slider 25 and the slide groove 24 ensures the stability and smoothness of the angle adjustment of the clamping plate 23, thus ensuring that the use angle of the clamping plate 23 can adapt to the surface shape of the workpiece, meet the fitting and clamping requirements of complex-shaped workpieces, ensure the tight fit between the clamping plate 23 and the outer wall of the workpiece, and ensure the stable clamping of the workpiece by the clamping plate 23. The operator can adjust the use position of the adjusting seat 2 and the clamping plate 23 on the upper end of the placement plate 1 by rotating the drive screw 13. After the operator places the workpiece on the upper end of the placement plate 1, the simultaneous clamping of both sides of the workpiece by the clamping plates 23 on both sides can achieve the clamping stability of the workpiece and can adapt to the positioning and clamping of workpieces of different sizes.

[0030] To fix the usage location, for example, such as Figure 1 As shown, both sides of the lower outer wall of the shelf 1 are welded with fixing seats 11, and the outer wall of the fixing seats 11 has fixing holes that are equally spaced and parallel.

[0031] When in use, the operator can quickly fix the mounting base 11 to the machine tool workbench using external bolts. The mounting holes at different points can adapt to different fixing position requirements, satisfying the universality and adaptability of fixing the shelf 1, while ensuring the fixing firmness of the shelf 1.

[0032] For example, to move the position, such as Figure 2 As shown, a first bearing 21 is interference-fitted onto the outer wall of one side of the adjusting seat 2, and one end of the drive screw 13 is interference-fitted onto the inner ring of the first bearing 21. The drive screw 13 is rotatably connected to the adjusting seat 2 through the first bearing 21.

[0033] When the rotational motion of the drive screw 13 is converted into the linear motion of the adjusting seat 2 during use, the first bearing 21 can reduce the frictional resistance between the drive screw 13 and the adjusting seat 2, making the adjustment process smoother and reducing the operating torque. At the same time, the supporting effect of the first bearing 21 can prevent the drive screw 13 from shifting due to force, ensuring the straightness of the lateral movement of the adjusting seat 2, improving the workpiece positioning accuracy, and thus adjusting the position of the adjusting seat 2 and the clamping plate 23, enabling simultaneous clamping and fixing of both sides of the workpiece on the upper end of the placement plate 1.

[0034] For angle adjustment, for example, such as Figure 3 As shown, a second bearing 33 is interference-fitted onto the outer wall of one side of the linkage seat 32, and one end of the adjusting screw 31 is interference-fitted onto the inner ring of the second bearing 33. The adjusting screw 31 is rotatably connected to the linkage seat 32 through the second bearing 33.

[0035] In use, when the adjusting screw 31 is rotated, the second bearing 33 can reduce the wear between the adjusting screw 31 and the linkage seat 32, ensuring the flexibility of the adjustment screw 31's rotation, while preventing the linkage seat 32 from rotating synchronously with the adjusting screw 31. This allows the rotational motion of the adjusting screw 31 to be efficiently converted into the linear motion of the linkage seat 32, which in turn drives the slider 25 to slide through the connecting piece 26, thereby pushing the clamping plate 23 to rotate and adjusting the angle of use of the clamping plate 23.

[0036] For example, to enable coordinated movement, such as... Figure 4 As shown, the inner wall of the slide groove 24 and the outer wall of the slider 25 are both designed with a convex shape. The slider 25 protrudes from the outer wall of the slide groove 24 and has a connecting piece 26 welded on it. The connecting piece 26 is connected to the linkage seat 32 by a pin.

[0037] In use, the convex fit structure of the groove 24 and the slider 25 can prevent the slider 25 from coming out of the groove 24, while restricting the rotational freedom of the slider 25, ensuring that it can only slide in a straight line along the direction of the groove 24. The slider 25 is connected to the linkage seat 32 pin through the connector 26 to form a linkage transmission mechanism. When the linkage seat 32 moves, it can drive the slider 25 to slide in the groove 24 through the connector 26, thereby pushing the clamping plate 23 to rotate around the pin of the sleeve 22, so that the clamping plate 23 can adapt to the inclined surface of the workpiece and enhance the clamping compatibility of irregularly shaped workpieces.

[0038] To clamp the workpiece, for example, such as Figure 3 As shown, the size of the clamping plate 23 is adapted to the size of the end face of the adjusting seat 2, and the lower outer wall of the adjusting seat 2 is in contact with the upper outer wall of the placing plate 1.

[0039] When in use, the size of the clamping plate 23 is adapted to the end face of the adjusting seat 2, which can ensure that the clamping plate 23 forms a complete clamping plane at the front end of the adjusting seat 2, and the lower end of the adjusting seat 2 contacts the placement plate 1 to form a stable support base, reducing the shaking of the adjusting seat 2 when it moves laterally.

[0040] When this utility model is in use, the operator rotates the adjusting screw 31, and the rotational motion of the adjusting screw 31 is efficiently converted into the linear motion of the linkage seat 32. When the linkage seat 32 moves, it drives the slider 25 to slide in the slide groove 24 through the connecting piece 26. The sliding of the slider 25 pushes the clamping plate 23 to rotate around the pin of the sleeve 22, and adjusts the angle of the clamping plate 23 so that it can adapt to the surface shape of the workpiece.

[0041] The worker places the workpiece to be processed stably on the upper end of the placement plate 1. The worker rotates the drive screw 13, and the rotational motion of the drive screw 13 is converted into the linear motion of the adjusting seat 2. The adjusting seat 2 moves laterally on the placement plate 1, thereby driving the clamping plates 23 on both sides to move to the appropriate position, so that the clamping plates 23 on both sides can be aligned with the two sides of the workpiece, thereby achieving the clamping of the workpiece.

[0042] It should be noted that this utility model is a workpiece clamping fixture for machining. All components in this utility model are known to those skilled in the art, and their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0043] 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 descriptions of the above embodiments and specifications are merely illustrative of the principles of this 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A workpiece clamping fixture for machining, characterized by, The device includes a shelf (1), an adjusting seat (2), and a fixing plate (3). The shelf (1) has two vertical plates (12) screwed to both sides of its upper outer wall. The vertical plates (12) are threaded to a drive screw (13). The adjusting seat (2) is provided on the outer wall of one end of the drive screw (13). The adjusting seat (2) is screwed to the lower ends of both sides of its outer wall. The clamping plate (22) is connected to a clamping plate (23) by a pin. The clamping plate (23) has a groove (24) on its outer wall facing the adjusting seat (2). A slider (25) is slidably installed inside the groove (24). The fixing plate (3) is screwed to the inside of the adjusting seat (2). The adjusting screw (3) is threaded to the inside of the fixing plate (3). A linkage seat (32) is provided on the outer wall of one end of the adjusting screw (31).

2. The machined workpiece fixture of claim 1, wherein, The lower outer wall of the shelf (1) is welded with a fixing seat (11) on both sides, and the outer wall of the fixing seat (11) is provided with fixing holes that are equally spaced and parallel.

3. The machined workpiece fixture of claim 1, wherein, The first bearing (21) is interference-fitted to the outer wall of one side of the adjusting seat (2), and one end of the drive screw (13) is interference-fitted to the inner ring of the first bearing (21). The drive screw (13) is rotatably connected to the adjusting seat (2) through the first bearing (21).

4. The machined workpiece clamping fixture of claim 1, wherein, The second bearing (33) is interference-fitted to the outer wall of one side of the linkage seat (32), and one end of the adjusting screw (31) is interference-fitted to the inner ring of the second bearing (33). The adjusting screw (31) is rotatably connected to the linkage seat (32) through the second bearing (33).

5. The machined workpiece clamping fixture of claim 1, wherein, The inner wall of the groove (24) and the outer wall of the slider (25) are both designed with a convex shape. The slider (25) protrudes from the outer wall of the groove (24) and is welded with a connector (26). The connector (26) and the linkage seat (32) are connected by a pin.

6. The machined workpiece clamping fixture of claim 1, wherein, The size of the clamping plate (23) is adapted to the end face size of the adjusting seat (2), and the lower outer wall of the adjusting seat (2) is in contact with the upper outer wall of the placing plate (1).

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