Positioning fixture for chuck

Abstract

The utility model discloses a positioning fixture for a chuck, which belongs to the technical field of positioning fixtures and is characterized by comprising a fixing plate, a limit groove is arranged at the top of the fixing plate, a connecting block is slidably connected to the inner wall of the limit groove, and an adjusting telescopic rod is fixedly connected to one side opposite to the connecting block. A fixing block is fixedly connected to the surface of the adjusting telescopic rod, a through hole is formed in the left side of the connecting block, a positioning assembly is slidably connected to the inner wall of the through hole, a placing disc is fixedly connected to the top of the fixing plate, a vacuum suction cup is fixedly connected to the inner wall of the placing disc, and a buffering assembly is fixedly connected to the bottom of the fixing plate. The problems that when an existing positioning fixture is used, the clamping diameter of most fixtures is not convenient to adjust, the positioning fixture needs to be replaced when the diameter of a chuck is different from the diameter of the positioning fixture, and consequently the machining efficiency of the chuck is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a positioning fixture for a chuck. Background Art

[0002] A chuck is a mechanical device used to clamp a workpiece, usually for rotating processing or positioning the workpiece. The chuck can keep the workpiece stable during the rotation or positioning operation. It is widely used in machine tools, bench equipment, automated production lines and other fields.

[0003] During the chuck processing process, a positioning fixture is used to position and clamp the processed chuck, and the chuck positioning fixture is one of them. However, most of the existing positioning fixtures are not convenient for adjusting the clamping diameter of the fixture when in use, resulting in the need to replace the positioning fixture when the diameter of the chuck is different from the diameter of the positioning fixture, thereby reducing the processing efficiency of the chuck. Therefore, a chuck positioning fixture is proposed. Utility Model Content

[0004] The utility model provides a positioning fixture for a chuck, aiming to solve the problem that most of the existing positioning fixtures are inconvenient to adjust the clamping diameter of the fixture when in use, resulting in the need to replace the positioning fixture when the diameter of the chuck is different from the diameter of the positioning fixture, thereby reducing the processing efficiency of the chuck.

[0005] The utility model is implemented as follows: a positioning fixture for a chuck comprises a fixing plate, a limiting groove is provided on the top of the fixing plate, a connecting block is slidably connected to the inner wall of the limiting groove, an adjusting telescopic rod is fixedly connected to the opposite side of the connecting block, a fixing block is fixedly connected to the surface of the adjusting telescopic rod, a through hole is provided on the left side of the connecting block, a positioning assembly is slidably connected to the inner wall of the through hole, a placing plate is fixedly connected to the top of the fixing plate, a vacuum suction cup is fixedly connected to the inner wall of the placing plate, and a buffer assembly is fixedly connected to the bottom of the fixing plate;

[0006] The positioning assembly includes a sliding rod, the surface of the sliding rod is slidably connected to the inner wall of the through hole, an adjusting spring is sleeved on the surface of the sliding rod, one end of the adjusting spring is fixedly connected to the left and right sides of the connecting block, the other end of the adjusting spring is fixedly connected to a positioning plate, the side of the positioning plate close to the adjusting spring is fixedly connected to the end of the sliding rod close to each other, an installation groove is provided on the left side of the positioning plate, the bottom and top of the inner wall of the installation groove are fixedly connected to the damping shaft, the surface of the other end of the damping shaft is fixedly connected to the adjusting block, the other end of the adjusting block is provided with an auxiliary groove, and the top and bottom of the inner wall of the auxiliary groove are fixedly connected to a rubber block.

[0007] In order to alleviate the impact force generated during processing, as a preferred positioning fixture for a chuck of the utility model, the buffer assembly includes a base plate, the top of the base plate is fixedly connected to a sleeve rod, the inner wall of the sleeve rod is provided with an annular hole, the inner wall of the annular hole contacts with a damping spring, the top of the damping spring contacts with an extrusion block, the top of the extrusion block is fixedly connected with a connecting rod, the connecting rod passes through the inner wall of the sleeve rod and extends to the top of the sleeve rod, the top of the connecting rod is fixedly connected to the bottom of the fixed plate.

[0008] In order to assist in guiding the installation position of the adjustable telescopic rod, as a preferred positioning fixture for a chuck of the utility model, guide holes are opened on the left and right sides of the fixed block, and there are two guide holes in total, and the inner walls of the guide holes are in contact with the surface of the adjustable telescopic rod.

[0009] In order to guide the installation position of the controller and synchronously control the adjustment of the telescopic rod, as a preferred positioning fixture for a chuck of the utility model, a square groove is opened at the bottom of the fixed block, and the inner wall of the square groove is fixedly connected to the controller.

[0010] In order to limit the sliding position of the slide rod, as a preferred positioning fixture for a chuck of the utility model, the other end of the slide rod is fixedly connected to a limiting ring, the limiting ring is set to be circular, and the limiting ring contacts the side close to the connecting block.

[0011] In order to protect the adjustment block, as a preferred positioning fixture for a chuck of the utility model, a protective sleeve is fixedly connected to the surface of the adjustment block, and convex points are arranged on the surface of the protective sleeve.

[0012] In order to guide the installation position of the vacuum suction cup, as a preferred positioning fixture for a chuck of the utility model, a circular hole is opened on the top of the placement plate, and there are four circular holes in total, and the inner walls of the four circular holes are in contact with the surface of the vacuum suction cup.

[0013] In order to guide the sliding position of the connecting rod, as a preferred positioning fixture for a chuck of the utility model, a sliding hole is opened on the top of the sleeve rod, and the sliding hole passes through the top of the sleeve rod and extends to the inner wall of the annular hole. The inner wall of the sliding hole contacts the surface of the connecting rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The positioning fixture for the chuck is provided with a fixing plate, a limiting groove, a connecting block, an adjusting telescopic rod, a fixing block, a through hole, a positioning component, a placing plate, a vacuum suction cup and a buffer component. The chuck to be processed can be placed on the placing plate, and then the vacuum suction cup can be started, so that the vacuum suction cup can generate suction on the bottom of the chuck under the fixation of the placing plate, so that the placed chuck will not be displaced. Then the positioning component is rotated, and the positioning component can be adjusted to a desired position through the friction force generated by the rotation, and then fixed by the friction force. Then, the adjusting telescopic rod is started, and the adjusting telescopic rod can drive the connecting block to move in the limiting groove under the fixation of the fixing block, and the limiting of the limiting groove can avoid the position of the connecting block from being affected by the bottle body. Then, when the connecting block moves, the positioning component can be driven to move, so that the positioning component can contact the chuck, and the clamping of the positioning component can increase the stability of the chuck during processing, and when the chuck is processed, the buffering performance of the buffer component can alleviate the impact force generated during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the positioning fixture for the chuck of the utility model;

[0017] Figure 2 It is a schematic diagram of the connection between the fixing plate and the placement plate in the utility model;

[0018] Figure 3 This is a schematic diagram of the connection between the fixed block and the adjustable telescopic rod in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the positioning component in the utility model;

[0020] Figure 5 For this utility model Figure 2 Enlarged view of point A in .

[0021] In the figure, 1, fixing plate; 2, limiting groove; 3, connecting block; 4, adjusting telescopic rod; 5, fixing block; 6, through hole; 7, positioning assembly; 701, sliding rod; 702, adjusting spring; 703, positioning plate; 704, mounting groove; 705, damping shaft; 706, adjusting block; 707, auxiliary groove; 708, rubber block; 8, placing plate; 9, vacuum suction cup; 10, buffer assembly; 1011, bottom plate; 1012, sleeve rod; 1013, annular hole; 1014, damping spring; 1015, extrusion block; 1016, connecting rod; 11, guide hole; 12, square groove; 13, controller; 14, limiting ring; 15, protective cover; 16, circular hole; 17, sliding hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] See also Figure 1-5 The utility model provides a technical solution: a positioning fixture for a chuck, comprising a fixing plate 1, a limiting groove 2 is provided on the top of the fixing plate 1, a connecting block 3 is slidably connected to the inner wall of the limiting groove 2, an adjusting telescopic rod 4 is fixedly connected to the opposite side of the connecting block 3, a fixing block 5 is fixedly connected to the surface of the adjusting telescopic rod 4, a through hole 6 is provided on the left side of the connecting block 3, a positioning component 7 is slidably connected to the inner wall of the through hole 6, a placing plate 8 is fixedly connected to the top of the fixing plate 1, a vacuum suction cup 9 is fixedly connected to the inner wall of the placing plate 8, and a buffer component 10 is fixedly connected to the bottom of the fixing plate 1;

[0025] The positioning assembly 7 includes a slide bar 701, the surface of the slide bar 701 is slidably connected to the inner wall of the through hole 6, an adjusting spring 702 is sleeved on the surface of the slide bar 701, one end of the adjusting spring 702 is fixedly connected to the left and right sides of the connecting block 3, the other end of the adjusting spring 702 is fixedly connected to a positioning plate 703, the side of the positioning plate 703 close to the adjusting spring 702 is fixedly connected to the end of the slide bar 701 close to each other, a mounting groove 704 is provided on the left side of the positioning plate 703, the bottom and top of the inner wall of the mounting groove 704 are fixedly connected to a damping shaft 705, the surface of the other end of the damping shaft 705 is fixedly connected to an adjusting block 706, the other end of the adjusting block 706 is provided with an auxiliary groove 707, and the top and bottom of the inner wall of the auxiliary groove 707 are fixedly connected to a rubber block 708.

[0026] In this embodiment, by arranging the fixing plate 1, the limiting groove 2, the connecting block 3, the adjusting telescopic rod 4, the fixing block 5, the through hole 6, the positioning assembly 7, the placement plate 8, the vacuum suction cup 9 and the buffer assembly 10, the chuck to be processed can be placed on the placement plate 8, and then the vacuum suction cup 9 can be started, so that the vacuum suction cup 9 can generate suction on the bottom of the chuck under the fixation of the placement plate 8, so that the placed chuck will not be displaced, and then the positioning assembly 7 can be rotated, so that the positioning assembly 7 can be adjusted to the desired position through the friction force generated by the rotation, and then the chuck can be adjusted to the desired position through the friction force generated by the rotation. The friction is fixed, and then the adjustable telescopic rod 4 is started, so that the adjustable telescopic rod 4 can drive the connecting block 3 to move in the limiting groove 2 under the fixation of the fixing block 5, and the limiting of the limiting groove 2 can avoid the bottle body from occurring at the position of the connecting block 3, and then when the connecting block 3 moves, the positioning component 7 can be driven to move, so that the positioning component 7 can contact the chuck, and the clamping of the positioning component 7 can increase the stability of the chuck during processing, and when the chuck is processed, the buffering performance of the buffer component 10 can be used to alleviate the impact force generated during processing.

[0027] As a technical optimization solution of the utility model, the buffer assembly 10 includes a base plate 1011, the top of the base plate 1011 is fixedly connected to a sleeve rod 1012, the inner wall of the sleeve rod 1012 is provided with an annular hole 1013, the inner wall of the annular hole 1013 is in contact with a damping spring 1014, the top of the damping spring 1014 is in contact with an extrusion block 1015, the top of the extrusion block 1015 is fixedly connected to a connecting rod 1016, the connecting rod 1016 passes through the inner wall of the sleeve rod 1012 and extends to the top of the sleeve rod 1012, and the top of the connecting rod 1016 is fixedly connected to the bottom of the fixed plate 1.

[0028] In this embodiment: by setting up the buffer component 10, the connection between the connecting rod 1016 and the extrusion block 1015 can be used so that when the connecting rod 1016 is subjected to impact force, the extrusion block 1015 can be driven to slide into the annular hole 1013, and the sliding of the extrusion block 1015 can cause the extrusion block 1015 to squeeze the damping spring 1014, and under the action of the damping spring 1014, the impact force can be relieved, and the extrusion block 1015 and the connecting rod 1016 can be reset, and the stability of the sleeve rod 1012 can be increased by fixing the bottom plate 1011.

[0029] As a technical optimization solution of the utility model, guide holes 11 are opened on the left and right sides of the fixing block 5 , and there are two guide holes 11 in total, and the inner walls of the guide holes 11 are in contact with the surface of the adjustable telescopic rod 4 .

[0030] In this embodiment, by providing the guide hole 11 , the guide hole 11 can be in contact with the adjustable telescopic rod 4 , so that the installation position of the adjustable telescopic rod 4 can be auxiliary guided.

[0031] As a technical optimization solution of the present invention, a square groove 12 is provided at the bottom of the fixing block 5 , and a controller 13 is fixedly connected to the inner wall of the square groove 12 .

[0032] In this embodiment, by providing the square slot 12 and the controller 13 , the square slot 12 can guide the installation position of the controller 13 through the fixed block 5 through the contact between the square slot 12 and the fixed block 5 , and the controller 13 can synchronously control the adjustment of the telescopic rod 4 .

[0033] As a technical optimization solution of the present invention, the other end of the slide rod 701 is fixedly connected to a limit ring 14 . The limit ring 14 is circular and contacts the side close to the connection block 3 .

[0034] In this embodiment, by providing a limiting ring 14 , the limiting ring 14 can be connected to the slide bar 701 , so that the limiting ring 14 can limit the sliding position of the slide bar 701 through the connecting block 3 .

[0035] As a technical optimization solution of the present utility model, a protective sleeve 15 is fixedly connected to the surface of the adjustment block 706, and a convex point is arranged on the surface of the protective sleeve 15.

[0036] In this embodiment, by providing the protective sleeve 15 , the protective sleeve 15 can be connected to the adjusting block 706 , so that the protective sleeve 15 can protect the adjusting block 706 and prevent the surface of the adjusting block 706 from being worn.

[0037] As a technical optimization solution of the utility model, a circular hole 16 is opened on the top of the placement plate 8 , and there are four circular holes 16 in total, and the inner walls of the four circular holes 16 are in contact with the surface of the vacuum suction cup 9 .

[0038] In this embodiment, the circular hole 16 is provided, and the circular hole 16 can guide the installation position of the vacuum suction cup 9 through the contact between the circular hole 16 and the vacuum suction cup 9.

[0039] As a technical optimization solution of the utility model, a sliding hole 17 is opened at the top of the sleeve rod 1012, and the sliding hole 17 passes through the top of the sleeve rod 1012 and extends to the inner wall of the annular hole 1013. The inner wall of the sliding hole 17 contacts the surface of the connecting rod 1016.

[0040] In this embodiment, by providing the sliding hole 17 , the sliding hole 17 can guide the sliding position of the connecting rod 1016 through the contact between the sliding hole 17 and the connecting rod 1016 .

[0041] Working principle: First, place the chuck to be processed on the placement plate 8, and then start the vacuum suction cup 9, which can generate suction on the bottom of the chuck under the fixation of the placement plate 8, so that the placed chuck will not be displaced, and then rotate the adjustment block 706, so that when it rotates, it drives the damping shaft 705 to rotate, and the friction force generated by the rotation of the damping shaft 705 can fix the adjustment position of the adjustment block 706, and then start the adjustment telescopic rod 4, so that the adjustment telescopic rod 4 can drive the connecting block 3 to move in the limiting groove 2, and when the connecting block 3 is connected to the slide rod 701 through the through hole 6, it drives the slide rod 701 to move, and when it moves, the adjusted adjustment block 706 can pass through the auxiliary groove. 707 drives the rubber block 708 to clamp the chuck, and then when the contact force with the chuck gradually increases, the positioning plate 703 can push the slide bar 701 into the through hole 6, and through the sliding of the slide bar 701, the adjustment spring 702 can be squeezed on the surface of the slide bar 701, thereby completing the clamping of the chuck, and when the chuck is processed to generate an impact force, the connection between the fixed plate 1 and the connecting rod 1016 can be used to make the connecting rod 1016 drive the extrusion block 1015 to slide into the annular hole 1013 when the impact force is applied, and through the sliding of the extrusion block 1015, the extrusion block 1015 can squeeze the damping spring 1014, and under the action of the damping spring 1014, the impact force can be relieved, and then the processing of the chuck is completed.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning fixture for a chuck, comprising a fixing plate (1), characterized in that: A limiting groove (2) is provided on the top of the fixing plate (1), a connecting block (3) is slidably connected to the inner wall of the limiting groove (2), an adjusting telescopic rod (4) is fixedly connected to the opposite side of the connecting block (3), a fixing block (5) is fixedly connected to the surface of the adjusting telescopic rod (4), a through hole (6) is provided on the left side of the connecting block (3), a positioning assembly (7) is slidably connected to the inner wall of the through hole (6), a placing plate (8) is fixedly connected to the top of the fixing plate (1), a vacuum suction cup (9) is fixedly connected to the inner wall of the placing plate (8), and a buffer assembly (10) is fixedly connected to the bottom of the fixing plate (1); The positioning assembly (7) comprises a slide bar (701), the surface of the slide bar (701) is slidably connected to the inner wall of the through hole (6), an adjusting spring (702) is sleeved on the surface of the slide bar (701), one end of the adjusting spring (702) is fixedly connected to the left and right sides of the connecting block (3), the other end of the adjusting spring (702) is fixedly connected to a positioning plate (703), and the side of the positioning plate (703) close to the adjusting spring (702) is connected to the slide bar (701). 1) One end of the two adjacent parts is fixedly connected, a mounting groove (704) is provided on the left side of the positioning plate (703), a damping shaft (705) is fixedly connected to the bottom and top of the inner wall of the mounting groove (704), an adjustment block (706) is fixedly connected to the surface of the other end of the damping shaft (705), an auxiliary groove (707) is provided on the other end of the adjustment block (706), and a rubber block (708) is fixedly connected to the top and bottom of the inner wall of the auxiliary groove (707).

2. A positioning fixture for a chuck according to claim 1, characterized in that: The buffer assembly (10) comprises a bottom plate (1011), the top of the bottom plate (1011) is fixedly connected to a sleeve rod (1012), the inner wall of the sleeve rod (1012) is provided with an annular hole (1013), the inner wall of the annular hole (1013) contacts a damping spring (1014), the top of the damping spring (1014) contacts an extrusion block (1015), the top of the extrusion block (1015) is fixedly connected to a connecting rod (1016), the connecting rod (1016) passes through the inner wall of the sleeve rod (1012) and extends to the top of the sleeve rod (1012), and the top of the connecting rod (1016) is fixedly connected to the bottom of the fixed plate (1).

3. A positioning fixture for a chuck according to claim 1, characterized in that: The left and right sides of the fixed block (5) are provided with guide holes (11), and there are two guide holes (11) in total, and the inner walls of the guide holes (11) are in contact with the surface of the adjustable telescopic rod (4).

4. A positioning fixture for a chuck according to claim 1, characterized in that: A square groove (12) is provided at the bottom of the fixing block (5), and a controller (13) is fixedly connected to the inner wall of the square groove (12).

5. A positioning fixture for a chuck according to claim 1, characterized in that: The other end of the sliding rod (701) is fixedly connected to a limiting ring (14), the limiting ring (14) is designed to be circular, and the limiting ring (14) is in contact with a side close to the connecting block (3).

6. A positioning fixture for a chuck according to claim 1, characterized in that: A protective sleeve (15) is fixedly connected to the surface of the adjustment block (706), and a convex point is arranged on the surface of the protective sleeve (15).

7. A positioning fixture for a chuck according to claim 1, characterized in that: A circular hole (16) is provided on the top of the placement plate (8), and there are four circular holes (16) in total, and the inner walls of the four circular holes (16) are in contact with the surface of the vacuum suction cup (9).

8. A positioning fixture for a chuck according to claim 2, characterized in that: A sliding hole (17) is provided at the top of the sleeve rod (1012). The sliding hole (17) passes through the top of the sleeve rod (1012) and extends to the inner wall of the annular hole (1013). The inner wall of the sliding hole (17) contacts the surface of the connecting rod (1016).

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