A finger pressure chuck

Abstract

The utility model relates to the technical field of clamps, and specifically to a finger pressure chuck, comprising an outer shell, a top plate, a fixing ring, a threaded rod, a sliding plate, three limiting columns, three calipers, three sliding rods and three fixing pieces. The top plate is bolted to the outer shell, the fixing ring is detachably connected to the outer shell, the clamping groove is arranged in a semicircular shape, one end of the three sliding rods is slidably connected to the top plate, the other ends of the three sliding rods pass through the top plate and are clamped with the caliper, the lower ends of the three sliding rods are arranged with grooves, the three limiting columns are fixedly connected to the corresponding sliding rods, one end of the threaded rod is threadedly connected to the fixing ring, the other end of the threaded rod passes through the sliding plate, and the three fixing pieces are sleeved on the surface of the sliding rod. Through the arrangement of the above structure, the problem that when the existing chuck clamps a circular part, the ordinary chuck cannot fix it, and the friction between the claws and the side wall of the part occurs during the processing, which will cause the surface quality of the circular part to be reduced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a finger pressure chuck. Background Art

[0002] In mechanical processing, the use of chucks is very extensive. Chucks are often used to clamp workpieces. The chuck usually includes a base and three claws arranged on the base. The three claws are evenly arranged along the circumference of the base, and each claw slides along the radial direction of the base. The three claws are synchronously close to the axis of the base, and the claws are pressed against the outer periphery of the workpiece, thereby clamping the workpiece.

[0003] When clamping round parts, ordinary chucks cannot fix them. During the processing, the jaws rub against the side walls of the parts, which will cause the surface quality of the round parts to deteriorate. Utility Model Content

[0004] The utility model aims to provide a finger pressure chuck, which solves the problem that when the existing chuck clamps a circular part, the ordinary chuck cannot fix it, and the friction between the clamping claws and the side wall of the part during the processing will cause the surface quality of the circular part to decrease.

[0005] To achieve the above-mentioned purpose, the utility model provides a finger pressure chuck, comprising a shell, a top plate, a fixing ring, a threaded rod, a sliding plate, three limiting columns, three calipers, three sliding rods and three fixing parts, the top plate is bolted to the shell and is located above the shell, the fixing ring is detachably connected to the shell and is located at the bottom of the shell, the sliding plate is arranged inside the shell, the three calipers are fixedly connected to the sliding plate and are evenly arranged on the outside of the sliding plate, the sides of the three calipers are provided with card grooves, the card grooves are arranged in a semicircular shape, one end of the three sliding rods is slidably connected to the top plate, the other ends of the three sliding rods pass through the top plate and are clamped with the calipers, the lower ends of the three sliding rods are provided with grooves, the grooves are adapted to the card grooves, the three limiting columns are fixedly connected to the corresponding sliding rods and are located at the lower end of the caliper, one end of the threaded rod is threadedly connected to the fixing ring, the other end of the threaded rod passes through the sliding plate, and the three fixing parts are sleeved on the surface of the sliding rod.

[0006] Wherein, each of the fixing parts further includes three sleeves and a protruding block, wherein the sleeve is threadedly connected to the sliding rod and sleeved on the surface of the sliding rod, and the protruding block is fixedly connected to the three sleeves and is located on one side of the sleeve.

[0007] Wherein, the finger pressure chuck further comprises a limit block, which is fixedly connected to one end of the threaded rod and is located on one side of the sliding plate.

[0008] Among them, the acupressure chuck also includes three fixed blocks and three limit rods. The three fixed blocks are fixedly connected to the top plate and are sleeved on the surface of the corresponding sliding rod. The surface of the sliding rod is provided with an oblique groove. One end of the three limit rods is slidably connected to the corresponding sliding rod and is located in the corresponding oblique groove. The other end of the three limit rods is slidably connected to the corresponding fixed block and passes through the fixed block.

[0009] Wherein, the side surface of the fixing block is arranged in an arc shape.

[0010] The utility model provides a finger pressure chuck, the top plate is bolted to the shell and is located above the shell, the fixing ring is detachably connected to the shell and is located at the bottom of the shell, the sliding plate is arranged inside the shell, the three calipers are fixedly connected to the sliding plate and are evenly arranged on the outside of the sliding plate, the sides of the three calipers are provided with grooves, the grooves are arranged in a semicircular shape, one end of the three sliding rods is slidably connected to the top plate, the other ends of the three sliding rods pass through the top plate and are clamped with the calipers, the lower ends of the three sliding rods are provided with grooves, the grooves are adapted to the grooves, the three limiting columns are fixedly connected to the corresponding sliding rods and are located at the lower end of the caliper, one end of the threaded rod is threadedly connected to the fixing ring, the other end of the threaded rod passes through the sliding plate, and the three fixing members are sleeved on the surface of the sliding rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a structural schematic diagram of the finger pressure chuck of the utility model.

[0013] Figure 2 It is a bottom view of the finger pressure chuck of the utility model.

[0014] Figure 3 It is a schematic diagram of the internal structure of the finger pressure chuck of the utility model.

[0015] 1-housing, 2-top plate, 3-fixing ring, 4-threaded rod, 5-sliding plate, 6-limiting column, 7-caliper, 8-sliding rod, 9-oblique groove, 10-sleeve, 11-protruding block, 12-limiting block, 13-fixing block, 14-limiting rod, 15-groove, 16-card slot. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0017] See also Figures 1 to 3 The utility model provides a finger pressure chuck, comprising a shell 1, a top plate 2, a fixing ring 3, a threaded rod 4, a sliding plate 5, three limiting columns 6, three calipers 7, three sliding rods and three fixing members, wherein the top plate 2 is bolted to the shell 1 and is located above the shell 1, the fixing ring 3 is detachably connected to the shell 1 and is located at the bottom of the shell 1, the sliding plate 5 is arranged inside the shell 1, the three calipers 7 are fixedly connected to the sliding plate 5 and are evenly arranged on the outside of the sliding plate 5, and the sides of the three calipers 7 are provided with a card slot 1 6. The slot 16 is arranged in a semicircular shape. One end of the three sliding rods is slidably connected to the top plate 2. The other ends of the three sliding rods pass through the top plate 2 and are clamped with the caliper 7. The lower ends of the three sliding rods are provided with grooves 15. The grooves 15 are adapted to the slots 16. The three limiting columns 6 are fixedly connected to the corresponding sliding rods and are located at the lower end of the caliper 7. One end of the threaded rod 4 is threadedly connected to the fixing ring 3. The other end of the threaded rod 4 passes through the sliding plate 5. The three fixing parts are sleeved on the surface of the sliding rod.

[0018] In this embodiment, the circular part is prevented from being on the top plate 2, and the threaded rod 4 is rotated to make the sliding plate 5 move downward. Under the restriction of the limit column 6, the three calipers 7 pull the sliding rod downward so that the three fixing parts fix the surface of the circular part, thereby improving the stability of fixing the circular part. After the top plate 2 is removed, the sliding rod can be taken out from the calipers 7. The installation or disassembly process is simple and convenient for maintenance.

[0019] Furthermore, each of the fixing members further comprises three sleeves and a protruding block 11, wherein the sleeves are threadedly connected to the sliding rod and sleeved on the surface of the sliding rod, and the protruding block 11 is fixedly connected to the three sleeves and is located on one side of the sleeve.

[0020] In this embodiment, the sleeve is fixed to the sliding column by bolts, which is convenient for disassembly. When the sliding column moves downward, the protruding block 11 will.

[0021] Furthermore, the finger pressure chuck also includes a limit block 12 , which is fixedly connected to one end of the threaded rod 4 and is located on one side of the sliding plate 5 .

[0022] In this embodiment, the limit block 12 limits the position of the sliding plate 5. When the threaded rod 4 rotates, the limit block 12 is driven to move, so that the sliding plate 5 moves accordingly.

[0023] Furthermore, the acupressure chuck also includes three fixed blocks 13 and three limiting rods 14. The three fixed blocks 13 are fixedly connected to the top plate 2 and are sleeved on the surface of the corresponding sliding rod. The surface of the sliding rod is provided with an inclined groove 9. One end of the three limiting rods 14 is slidably connected to the corresponding sliding rod and is located in the corresponding inclined groove 9. The other end of the three limiting rods 14 is slidably connected to the corresponding fixed block 13 and passes through the fixed block 13.

[0024] In this embodiment, when the sliding rod moves, under the restriction of the limit rod 14 and the inclined groove 9, the sliding rod rotates, and the three protrusion blocks 11 rotate accordingly. When placing circular parts, the three protrusion blocks 11 face outwards, and when fixed, the three protrusion blocks 11 face inwards, which is convenient for placing circular parts.

[0025] Furthermore, the side surface of the fixing block 13 is arranged in an arc shape.

[0026] In this embodiment, the fixing block 13 is adapted to the circular part. When fixing the circular part, the fixing block 13 contacts the outer wall of the circular part to prevent damage to the outer wall of the circular part.

[0027] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A finger pressure chuck, characterized in that: The invention comprises a shell, a top plate, a fixing ring, a threaded rod, a sliding plate, three limiting columns, three calipers, three sliding rods and three fixing parts, the top plate is bolted to the shell and is located above the shell, the fixing ring is detachably connected to the shell and is located at the bottom of the shell, the sliding plate is arranged inside the shell, the three calipers are fixedly connected to the sliding plate and are evenly arranged on the outside of the sliding plate, the sides of the three calipers are provided with grooves, the grooves are arranged in a semicircular shape, one end of the three sliding rods is slidably connected to the top plate, the other ends of the three sliding rods pass through the top plate and are clamped with the calipers, the lower ends of the three sliding rods are provided with grooves, the grooves are adapted to the grooves, the three limiting columns are fixedly connected to the corresponding sliding rods and are located at the lower end of the caliper, one end of the threaded rod is threadedly connected to the fixing ring, the other end of the threaded rod passes through the sliding plate, and the three fixing parts are sleeved on the surface of the sliding rod.

2. The finger pressure chuck according to claim 1, characterized in that: Each of the fixing members further comprises three sleeves and a protruding block. The sleeves are threadedly connected to the sliding rod and sleeved on the surface of the sliding rod. The protruding block is fixedly connected to the three sleeves and is located on one side of the sleeve.

3. The finger pressure chuck according to claim 2, characterized in that: The finger pressure chuck also includes a limit block, which is fixedly connected to one end of the threaded rod and is located on one side of the sliding plate.

4. The finger pressure chuck according to claim 3, characterized in that: The acupressure chuck also includes three fixed blocks and three limit rods. The three fixed blocks are fixedly connected to the top plate and are sleeved on the surfaces of the corresponding sliding rods. The surfaces of the sliding rods are provided with oblique grooves. One ends of the three limit rods are slidably connected to the corresponding sliding rods and are located in the corresponding oblique grooves. The other ends of the three limit rods are slidably connected to the corresponding fixed blocks and pass through the fixed blocks.

5. The finger pressure chuck according to claim 4, characterized in that: The side surface of the fixing block is arranged in an arc shape.

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