A lathe fixture inclined sliding clamping structure

Abstract

The utility model discloses a lathe clamp inclined slide clamping structure relates to inclined wedge type clamp technical field, including base assembly, inclined slide clamping subassembly, fixed clamping plate, the inclined slide clamping subassembly, fixed clamping plate cooperation is used for realizing the clamping operation of work piece, the inclined slide clamping subassembly includes inclined wedge block, adjusting bolt, sliding seat, pressure sensor, pressing plate, pneumatic push rod. The utility model discloses a pressure sensor's inclined slide clamping subassembly is set up, and the pressure sensor can detect the clamping force of pressing plate to work piece, and the actual clamping force value can be seen by the operator or control system, effectively solve the problem that the clamping force degree can not be judged, not only avoid appearing the situation of clamping shortage or overload clamping, and simultaneously, for batch production, ensure that every work piece is clamped with the same force completely, fundamentally eliminate the clamping force fluctuation caused by the different operator or the same operator state is different, thereby greatly improved the consistency of product processing quality.

Description

Technical Field

[0001] This utility model relates to the field of inclined wedge clamping technology, specifically a lathe clamping structure with inclined sliding. Background Technology

[0002] The inclined sliding clamping structure, also known as the inclined wedge clamping mechanism, works by using an inclined plane to convert the original driving force (usually the operator's manual force or the thrust of a cylinder) in both direction and magnitude, thereby generating a larger and more appropriately oriented clamping force to secure the workpiece. A typical inclined sliding clamping structure typically includes the following components: 1. Wedge (driving block): The core component, with a specific angle, moves linearly under the action of external force; 2. Slide (sliding clamping block): The part that contacts the inclined surface of the wedge. It can slide in the guide rail of the fixture body. The pressure plate or jaws are usually directly mounted on the slide. 3. Fixture body: The foundation supporting the entire mechanism, with rails or slots for mounting the wedges and guide slides; 4. Return spring: Installed at the rear of the slide block, it automatically pushes the slide block back and releases the workpiece when the wedge is disengaged; 5. Clamping plate / jaw: An actuator that comes into direct contact with the workpiece; 6. Power source: The device that provides the original force, such as: manual: directly pushing the wedge with a bolt, nut or handle; pneumatic / hydraulic: pushing the wedge with a piston rod of a cylinder or hydraulic cylinder to achieve automation.

[0003] In practical use, existing slanted sliding clamping structures rely on the operator's experience to judge the clamping force of the pressure plate / jaws on the workpiece, which can easily lead to insufficient clamping or over-clamping. Insufficient clamping can cause the workpiece to loosen, resulting in machining defects, tool damage, or even safety accidents. On the other hand, thin-walled, easily deformable, or precision workpieces may deform due to excessive clamping force. Therefore, to avoid insufficient clamping or over-clamping, a slanted sliding clamping structure for lathe fixtures is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a lathe fixture oblique sliding clamping structure in order to solve the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lathe fixture oblique sliding clamping structure, comprising a base assembly, wherein the base assembly comprises a base, screw holes, a central through hole, and a rectangular mounting base, wherein the central through hole is opened at the top of the base and completely penetrates to the bottom of the base, and the screw holes are symmetrically opened on both sides of the top of the base with the central through hole as the center and completely penetrate the bottom of the base; The rectangular mounting base is fixed to the middle of the bottom of the base and the rectangular mounting base and the central through hole are concentrically distributed; The base is equipped with a sliding clamping assembly via a rectangular mounting base and a central through hole. The base is also equipped with a fixing plate via screw holes. The sliding clamping assembly and the fixing plate work together to perform workpiece clamping operations. The oblique sliding clamping assembly includes an oblique wedge block, an adjusting bolt, a slide block, a pressure sensor, a pressure plate, and a pneumatic push rod; The pneumatic push rod is mounted on the bottom of the rectangular mounting base, and the output shaft of the pneumatic push rod extends into the center through hole; The wedge blocks are distributed directly above the central through hole, and the adjusting bolt passes through the wedge blocks from top to bottom and is threadedly connected to the output shaft of the pneumatic push rod. The slide block is symmetrically slidably connected to the two inclined surfaces of the wedge block, and the lower surface of the slide block is in contact with the upper surface of the base. The pressure sensor is installed on the side of the slide block, and the pressure plate is fixedly connected to the pressure plate of the pressure sensor. The downward movement of the wedge block is achieved by tightening the adjusting bolt or retracting the pneumatic push rod. The downward movement of the wedge block is used to move the two pressure plates closer to the two fixed clamping plates, thereby achieving the workpiece clamping operation. The pressure sensor is used to detect the clamping force of the pressure plate on the workpiece.

[0006] As a further improvement of this utility model: a straight groove for cable passing through is provided at the position where the base is aligned with the moving area of ​​the pressure sensor, and the cable of the pressure sensor passes downward through the straight groove for cable passing through and is electrically connected to an external industrial display.

[0007] As a further improvement of this utility model: an inverted concave cover is fixed on the side of the pressure plate near the pressure sensor, and the inverted concave cover extends and sleeves on the outside of the slide block to shield and protect the pressure sensor.

[0008] As a further improvement of this utility model, the pressure plate, the inverted concave cover, and the slide block together completely shield the area above the straight groove and the wire threading groove.

[0009] As a further improvement of this utility model: support feet are fixed at the four corners of the bottom of the base, and mounting holes are provided at the top of the base near the four corners.

[0010] Compared with the prior art, the beneficial effects of this utility model are: By incorporating a slanted sliding clamping assembly with a pressure sensor, the sensor can detect the clamping force of the pressure plate on the workpiece. The operator or control system can visually observe the actual clamping force value, effectively solving the problem of inability to determine the clamping force. This not only avoids insufficient or overloaded clamping but also ensures that each workpiece is clamped with the exact same force for batch production. This fundamentally eliminates clamping force fluctuations caused by different operators or different states of the same operator, thereby greatly improving the consistency of product processing quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a bottom view of the bottom structure of this utility model; Figure 3 This is a structural cross-sectional view of the base assembly of this utility model; Figure 4 This is a schematic diagram showing the disassembled pressure plate and pressure sensor of this utility model.

[0012] In the diagram: 1. Base assembly; 101. Base; 102. Support foot; 103. Mounting hole; 104. Screw hole; 105. Center through hole; 106. Rectangular mounting seat; 107. Straight groove wire channel; 2. Slanted sliding clamping assembly; 201. Slanted wedge block; 202. Adjusting bolt; 203. Slide seat; 204. Pressure sensor; 205. Pressure plate; 206. Inverted concave cover; 207. Pneumatic push rod; 3. Fixed clamping plate. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-4 In this embodiment of the utility model, a lathe fixture oblique sliding clamping structure includes a base assembly 1. The base assembly 1 includes a base 101, a screw hole 104, a central through hole 105, and a rectangular mounting base 106. The central through hole 105 is opened at the top of the base 101 and completely penetrates to the bottom of the base 101. The screw holes 104 are symmetrically opened on both sides of the top of the base 101 with the central through hole 105 as the center and completely penetrate the bottom of the base 101. The rectangular mounting base 106 is fixed to the bottom center of the base 101 and the rectangular mounting base 106 and the central through hole 105 are concentrically distributed; The base 101 is equipped with a slanted clamping assembly 2 through a rectangular mounting base 106 and a central through hole 105. The base 101 is also equipped with a fixing clamping plate 3 through a screw hole 104. The slanted clamping assembly 2 and the fixing clamping plate 3 work together to achieve the workpiece clamping operation. The inclined sliding clamping assembly 2 includes an inclined wedge block 201, an adjusting bolt 202, a slide block 203, a pressure sensor 204, a pressure plate 205, and a pneumatic push rod 207; The pneumatic push rod 207 is mounted on the bottom of the rectangular mounting base 106, and the output shaft of the pneumatic push rod 207 extends into the center through hole 105; The inclined wedge 201 is located directly above the central through hole 105. The adjusting bolt 202 passes through the inclined wedge 201 from top to bottom and is threadedly connected to the output shaft of the pneumatic push rod 207. The slide block 203 is symmetrically slidably connected to the two inclined surfaces of the wedge block 201, and the lower surface of the slide block 203 is in contact with the upper surface of the base 101. The pressure sensor 204 is installed on the side of the slide block 203, and the pressure plate 205 is fixedly connected to the pressure plate of the pressure sensor 204. The downward movement of the wedge block 201 is achieved by adjusting the sliding block 202 or the pneumatic push rod 207 to retract. The downward movement of the wedge block 201 is used to move the two pressure plates 205 closer to the two fixed clamping plates 3, thereby achieving the workpiece clamping operation. Pressure sensor 204 is used to detect the clamping force of pressure plate 205 on the workpiece.

[0015] In this embodiment, it should be noted that the structural shape of the wedge block 201 and the slide block 203 is the same as that of the existing wedge clamping block on the market. The connection structure of the wedge block 201 and the slide block 203, as well as the return spring in the middle of the wedge block 201 and the slide block 203, can be designed in a conventional way. Therefore, they will not be described in detail here. When using this clamping structure to clamp a workpiece, the operation method is as follows: First, install the fixing clamp 3 at the appropriate position according to the size of the workpiece (it should be noted that the fixing clamp 3 is fixed by tightening the bolts and screw holes 104). Then, the workpiece can be placed between the fixing clamp 3 and the pressure plate 205. Then, as needed, the wedge block 201 can be driven to move down by turning the adjusting bolt 202 and activating the pneumatic push rod 207 (the pneumatic push rod 207 can also be replaced by a hydraulic push rod). When the wedge block 201 moves down, it squeezes the two slide blocks 203 through the inclined surface, causing the two slide blocks 203 to move away from each other. In this way, the two pressure plates 205 can be pushed closer to the two fixed clamping plates 3 respectively, and finally the workpiece is clamped. During this process, the pressure sensor 204 (which can be a gasket-type pressure sensor as needed) can detect the clamping force of the pressure plate 205 on the workpiece. This structure effectively solves the problem of inability to judge the clamping force. The operator or control system can see the actual clamping force value. This not only avoids insufficient clamping or overload clamping, but also ensures that each workpiece is clamped with the exact same force for batch production. This fundamentally eliminates the fluctuation of clamping force caused by different operators or different states of the same operator, thereby greatly improving the consistency of product processing quality.

[0016] Please refer to this carefully. Figures 2-4 A straight groove cable pass-through groove 107 is provided at the position where the base 101 is aligned with the moving area of ​​the pressure sensor 204. The cable of the pressure sensor 204 passes downward through the straight groove cable pass-through groove 107 and is electrically connected to an external industrial display. A concave cover 206 is fixed on the side of the pressure plate 205 near the pressure sensor 204. The concave cover 206 extends and is sleeved on the outside of the slide block 203 to shield and protect the pressure sensor 204. The pressure plate 205, the inverted concave cover 206, and the slide 203 together completely cover the area above the straight groove wire groove 107.

[0017] In this embodiment: the straight groove cable tray 107 provides movement space for the cable of the pressure sensor 204, so that the movement of the pressure sensor 204 does not interfere with the base 101. By completely shielding the pressure sensor 204 with the inverted concave cover 206, it is possible to prevent debris from the processing process from contacting the pressure sensor 204 and affecting its operation. Meanwhile, the pressure plate 205, the inverted concave cover 206, and the slide 203 shield the straight groove wire passage 107, preventing processing debris from entering the straight groove wire passage 107 and affecting the movement of the cable, thus effectively ensuring the stable operation of the pressure sensor 204.

[0018] Please refer to this carefully. Figures 1-3 Support feet 102 are fixed at the four corners of the bottom of the base 101, and mounting holes 103 are provided at the top of the base 101 near the four corners.

[0019] In this embodiment: the mounting hole 103 provides a mounting hole for the base 101 to be mounted on the lathe, and the support foot 102 provides space below the base 101 for the installation of the pneumatic push rod 207, and at the same time provides installation space for the cable of the pressure sensor 204.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lathe fixture oblique sliding clamping structure, comprising a base assembly (1), characterized in that, The base assembly (1) includes a base (101), screw holes (104), a central through hole (105), and a rectangular mounting base (106). The central through hole (105) is opened at the top of the base (101) and extends completely through to the bottom of the base (101). The screw holes (104) are symmetrically opened on both sides of the top of the base (101) with the central through hole (105) as the center and extend completely through the bottom of the base (101). The rectangular mounting base (106) is fixed to the middle of the bottom of the base (101), and the rectangular mounting base (106) and the central through hole (105) are concentrically distributed; The base (101) is equipped with a sliding clamping assembly (2) through a rectangular mounting base (106) and a central through hole (105). The base (101) is equipped with a fixing clamp (3) through a screw hole (104). The sliding clamping assembly (2) and the fixing clamp (3) work together to achieve the workpiece clamping operation. The inclined sliding clamping assembly (2) includes an inclined wedge (201), an adjusting bolt (202), a slide (203), a pressure sensor (204), a pressure plate (205), and a pneumatic push rod (207); The pneumatic push rod (207) is mounted on the bottom of the rectangular mounting base (106), and the output shaft of the pneumatic push rod (207) extends into the center through hole (105); The wedge block (201) is located directly above the central through hole (105), and the adjusting bolt (202) passes through the wedge block (201) from top to bottom and is threadedly connected to the output shaft of the pneumatic push rod (207). The slide block (203) is symmetrically slidably connected to the two inclined surfaces of the wedge block (201), and the lower surface of the slide block (203) is in contact with the upper surface of the base (101). The pressure sensor (204) is installed on the side of the slide block (203), and the pressure plate (205) is fixedly connected to the pressure plate of the pressure sensor (204). The downward movement of the wedge block (201) is achieved by tightening the adjusting bolt (202) or the pneumatic push rod (207) and retracting. The downward movement of the wedge block (201) is used to move the two pressure plates (205) closer to the two fixed clamping plates (3), thereby achieving the clamping operation of the workpiece. The pressure sensor (204) is used to detect the clamping force of the pressure plate (205) on the workpiece.

2. The lathe fixture oblique sliding clamping structure according to claim 1, characterized in that, A straight groove (107) is provided at the position where the base (101) is aligned with the moving area of ​​the pressure sensor (204). The cable of the pressure sensor (204) passes downward through the straight groove (107) and is electrically connected to an external industrial display.

3. The lathe fixture oblique sliding clamping structure according to claim 2, characterized in that, The pressure plate (205) is fixed with an inverted concave cover (206) on the side near the pressure sensor (204). The inverted concave cover (206) extends and is sleeved on the outside of the slide (203) to shield and protect the pressure sensor (204).

4. The lathe fixture oblique sliding clamping structure according to claim 3, characterized in that, The pressure plate (205), the inverted concave cover (206), and the slide (203) together completely cover the area above the straight groove threading groove (107).

5. The lathe fixture oblique sliding clamping structure according to claim 1, characterized in that, Support feet (102) are fixed at the four corners of the bottom of the base (101), and mounting holes (103) are opened at the top of the base (101) near the four corners.

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