Rapid clamping fixture for special-shaped workpiece

Abstract

The utility model provides a special-shaped workpiece quick clamping fixture which comprises a crank and a transverse adjusting seat, a group of rotating columns used for driving an adjusting rotating column I to rotate are arranged at the lower end of the crank, and a group of limiting plates used for limiting the descending positions of the rotating columns are arranged at the lower ends of the rotating columns. The lower end of the limiting plate is provided with a rear seat which is used for being fixedly connected with the limiting plate and is manufactured, and the left side and the right side of the rear seat are each provided with two sets of side fixing plates used for fixedly connecting the rear seat with an external fixing piece. Compared with the prior art, the clamping device has the advantages that the rear embedded seat and the sleeve shell are used for adjusting the vertical position of the connecting seat in the vertical direction, the transverse adjusting seat is used for controlling the movable clamping seat to move left and right and clamping a workpiece, the second adjusting rotary column is used for movably extruding the movable clamping seat, and therefore the clamping effect is improved. The outer side of the workpiece is clamped in an anti-skid mode through the anti-skid base plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of special-shaped clamps and relates to a fast clamping clamp for special-shaped workpieces. Background Art

[0002] Special workpieces, also known as irregularly shaped or specialized parts, primarily refer to components with irregular shapes or that differ from standard models and specifications. These workpieces differ significantly from standard parts in appearance, dimensions, physical properties, and operational characteristics. They often possess unconventional shapes and specialized structures, with high performance, complex structures, and diverse material properties. The inability to stably clamp these workpieces during machining can lead to a series of serious problems.

[0003] Unstable clamping will directly lead to a decrease in machining accuracy. Since the workpiece shakes or shifts during machining, the cutting tool cannot operate accurately according to the preset path, resulting in problems such as machining size deviation and shape distortion. Therefore, there is an urgent need for a quick clamping fixture for special-shaped workpieces to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a fast clamping fixture for special-shaped workpieces to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized by the following technical solutions: a fast clamping fixture for special-shaped workpieces, comprising: a crank and a horizontal adjustment seat, wherein a group of rotating cylinders for driving the adjusting rotating cylinder to rotate are provided at the lower end of the crank;

[0006] A set of limit plates are provided at the lower end of the rotating column for limiting the descending position of the rotating column, and a rear seat is provided at the lower end of the limit plate for connecting and fixing with the limit plate;

[0007] Two groups of side fixing plates are provided on the left and right sides of the rear seat for connecting and fixing the rear seat to the external fixing parts. A group of rear embedding seats is provided at the front end of the rear seat for movably engaging with the inner side of the shell. A group of shells is provided on the outer side of the rear embedding seats for adjusting the height of the connecting seat. The connecting seat can be adjusted up and down in the vertical direction by using the rear embedding seats and the shells.

[0008] As a preferred embodiment, a group of internal adjustment grooves for movably engaging with the horizontal adjustment seat are provided on the inner side of the front end of the sleeve, and a horizontal adjustment seat is provided inside the internal adjustment groove for driving the front adjustment shell to move left and right. The horizontal adjustment seat can be used to control the movable clamping seat to move left and right and clamp the workpiece.

[0009] As a preferred embodiment, the front end of the horizontal adjustment seat is provided with a group of front adjustment shells for screwing together with the adjustment screw 2, and the middle position inside the front adjustment shell is provided with a group of adjustment screws 2 for controlling the left and right movement of the movable clamp seat, which can be movably squeezed by using the adjustment screws 2.

[0010] As a preferred embodiment, a side rotary head is provided on the left side of the adjusting rotary column 2 for the staff to manually adjust the rotation of the adjusting rotary column 2, and a group of internal limit bearings fixedly connected to the interior of the movable clamp seat are provided on the right side of the adjusting rotary column 2.

[0011] As a preferred embodiment, a group of movable clamping seats for clamping the workpiece on the left side are provided on the outer side of the inner limit bearing, a clamping cavity for clamping the workpiece is provided on the right side of the movable clamping seat, and a group of anti-slip pads for clamping the outer side of the workpiece to prevent slipping are provided on the right side of the clamping cavity. The anti-slip pads can be used to clamp the outer side of the workpiece to prevent slipping.

[0012] As a preferred embodiment, a group of fixed clamp seats for supporting and clamping the outer side of the right end of the workpiece are provided on the right side of the anti-slip pad on the right side. The fixed clamp seat and the front adjustment shell are an integrated structure. The cross-section of the front adjustment shell and the fixed clamp seat is a concave structure. A group of guide grooves for guiding the movement of the movable clamp seat are provided inside the front adjustment shell.

[0013] As a preferred embodiment, a group of inner movable seats for connecting with the internal movable limit of the adjusting rotary column 1 is provided in the middle position inside the shell, and the connection method between the inner movable seat and the adjusting rotary column 1 is the same as the connection method between the movable clamp seat and the adjusting rotary column 2.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are: by using the rear insert and the sleeve to adjust the connecting seat up and down in the vertical direction, by using the horizontal adjustment seat to control the movable clamping seat to move left and right and clamp the workpiece, by using the adjusting rotary column 2 to movably squeeze the movable clamping seat, and by using the anti-slip pad to perform anti-slip clamping on the outside of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a schematic diagram of the structure of a quick clamping fixture for special-shaped workpieces in a top-down view from the left front oblique side of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the front adjustment shell of a special-shaped workpiece quick clamping fixture of the present invention, viewed from the right oblique front side;

[0018] Figure 3 This is a schematic diagram of the structure of the front interior of the rear seat of a quick clamping fixture for special-shaped workpieces in the utility model, viewed from the right front oblique side;

[0019] Figure 4 This is a schematic diagram of the structure of the rear right side oblique top view of the interior of the rear side of the sleeve shell of a quick clamping fixture for special-shaped workpieces of the present invention;

[0020] In the figure: 100-crank handle, 110-rotor column, 120-limiting plate, 130-rear seat, 140-side fixing plate, 150-rear embedded seat, 160-adjusting rotary column 1, 170-housing, 180-connecting seat, 190-front adjusting shell, 200-side rotary head, 210-adjusting rotary column 2, 220-movable clamp seat, 230-anti-slip pad, 240-fixed clamp seat, 250-horizontal adjustment seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-4 A quick clamping fixture for special-shaped workpieces includes: a crank handle 100, a connecting seat 180, a movable clamping seat 220, an anti-slip pad 230 and a horizontal adjustment seat 250. The lower end of the crank handle 100 is provided with a set of rotating cylinders 110 for driving the adjusting rotating cylinder to rotate 160 degrees;

[0023] A set of limit plates 120 are provided at the lower end of the swivel column 110 for limiting the descending position of the swivel column 110 , and a rear seat 130 is provided at the lower end of the limit plate 120 for connecting and fixing with the limit plate 120 ;

[0024] Two sets of side fixing plates 140 are provided on the left and right sides of the rear seat 130 for connecting and fixing the rear seat 130 to external fixing parts. A set of rear embedding seats 150 for movably engaging with the inner side of the sleeve 170 is provided at the front end of the rear seat 130. A set of sleeves 170 for adjusting the height of the connecting seat 180 is provided on the outer side of the rear embedding seats 150. The connecting seat 180 can be adjusted up and down in the vertical direction by using the rear embedding seats 150 and the sleeves 170.

[0025] A group of internal adjustment grooves for mutual engagement with the horizontal adjustment seat 250 are provided on the inner side of the front end of the sleeve 170. The internal adjustment grooves are provided with a horizontal adjustment seat 250 for driving the front adjustment shell 190 to move left and right. The horizontal adjustment seat 250 can be used to control the movement of the movable clamping seat 220 left and right, and clamp the workpiece.

[0026] A group of front adjustment shells 190 for screwing together with the adjustment screw 210 are provided at the front end of the horizontal adjustment seat 250. A group of adjustment screws 210 for controlling the left and right movement of the movable clamp seat 220 are provided in the middle position inside the front adjustment shell 190. The movable clamp seat 220 can be squeezed by using the adjustment screw 210.

[0027] A side rotary head 200 is provided on the left side of the second adjusting rotary column 210 for the staff to manually adjust the rotation of the second adjusting rotary column 210 , and a group of internal limit bearings fixedly connected to the interior of the movable clamping seat 220 are provided on the right side of the second adjusting rotary column 210 .

[0028] A group of movable clamping seats 220 for clamping the workpiece on the left side are provided on the outside of the inner limit bearing, a clamping cavity for clamping the workpiece is provided on the right side of the movable clamping seat 220, and a group of anti-slip pads 230 for clamping the outside of the workpiece to prevent slipping are provided on the right side of the clamping cavity. The anti-slip pads 230 can be used to clamp the outside of the workpiece to prevent slipping.

[0029] A group of fixed clamp seats 240 for supporting and clamping the outer side of the right end of the workpiece is provided on the right side of the right anti-slip pad 230. The fixed clamp seat 240 and the front adjustment shell 190 are an integrated structure. The cross-section of the front adjustment shell 190 and the fixed clamp seat 240 is a concave structure. A group of guide grooves for guiding the movement of the movable clamp seat 220 are provided inside the front adjustment shell 190.

[0030] A set of inner movable seats for connecting with the inner movable limit of the adjusting screw 1 160 is provided in the middle position of the housing 170 . The connection method between the inner movable seat and the adjusting screw 1 160 is the same as the connection method between the movable clamp seat 220 and the adjusting screw 2 210 .

[0031] See also Figures 1-4 , as the first embodiment of the present utility model: In order to solve the problem that unstable clamping will directly lead to a decrease in processing accuracy, due to the shaking or displacement of the workpiece during the processing, the cutting tool cannot operate accurately according to the preset path, resulting in processing size deviation, shape distortion and other problems, first the staff places the special-shaped workpiece to be clamped inside the clamping cavity, and then the staff adjusts the distance between the movable clamping seat 220 and the fixed clamping seat 240 according to the inner diameter length of the cross section of the specific clamping position, so as to clamp the special-shaped workpiece, and keep the two sets of anti-slip pads 230 in contact with the outer surface of the special-shaped workpiece to prevent the special-shaped workpiece from falling off from the clamping cavity.

[0032] See also Figures 1-4 , as the second embodiment of the present invention: based on the description in the above embodiment, further, since a group of inner movable seats for connecting with the internal movable limit of the adjusting rotary pin 160 is provided in the middle position inside the sleeve 170, the connection method of the inner movable seat and the adjusting rotary pin 160 is the same as the connection method of the movable clamping seat 220 and the adjusting rotary pin 2 210. When the staff needs to adjust the clamping height of the heterogeneous workpiece, the staff rotates the crank 100 and the rotary pin 110, and moves the adjusting rotary pin 160 upward along the inner side of the limit plate 120, thereby driving the inner movable seat and the connecting seat 180 to move up and down, and adjust the processing height of the heterogeneous workpiece.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick clamping fixture for special-shaped workpieces, comprising: A crank handle (100), a rear insert seat (150), an adjusting rotary column (160), a movable clamp seat (220), an anti-skid pad (230) and a horizontal adjusting seat (250), wherein the crank handle (100) is provided with a set of rotary columns (110) at the lower end thereof for driving the adjusting rotary column (160) to rotate; A set of limiting plates (120) for limiting the descending position of the rotating column (110) is provided at the lower end of the rotating column (110); a rear seat (130) for connecting and fixing with the limiting plate (120) is provided at the lower end of the limiting plate (120); Two groups of side fixing plates (140) are provided on both left and right sides of the rear seat (130) for connecting and fixing the rear seat (130) to external fixing parts; a group of rear inserting seats (150) for movably engaging with the inner side of a sleeve (170) is provided at the front end of the rear seat (130); and a group of sleeves (170) for adjusting the height of a connecting seat (180) is provided on the outer side of the rear inserting seat (150).

2. The quick clamping fixture for special-shaped workpieces according to claim 1, characterized in that: A group of inner adjustment grooves for movably engaging with the transverse adjustment seat (250) are provided on the inner side of the front end of the sleeve shell (170), and the transverse adjustment seat (250) is provided inside the inner adjustment groove for driving the front adjustment shell (190) to move left and right.

3. The quick clamping fixture for special-shaped workpieces according to claim 2, characterized in that: A front adjustment shell (190) for being screwed together with the second adjustment screw pin (210) is provided at the front end of the transverse adjustment seat (250), and a second adjustment screw pin (210) for controlling the left and right movement of the movable clamp seat (220) is provided at the middle position inside the front adjustment shell (190).

4. The quick clamping fixture for special-shaped workpieces according to claim 3, characterized in that: A side rotating head (200) is provided on the left side of the adjusting rotating column 2 (210) for a staff member to manually adjust the rotation of the adjusting rotating column 2 (210), and a group of internal limit bearings connected and fixed to the inside of the movable clamping seat (220) are provided on the right side of the adjusting rotating column 2 (210).

5. The quick clamping fixture for special-shaped workpieces according to claim 4, characterized in that: A group of movable clamping seats (220) for clamping the workpiece on the left side are arranged on the outer side of the inner limit bearing, a clamping cavity for clamping the workpiece is arranged on the right side of the movable clamping seat (220), and a group of anti-skid pads (230) for clamping the outer side of the workpiece to prevent slipping are arranged on the right side of the clamping cavity.

6. The quick clamping fixture for special-shaped workpieces according to claim 5, characterized in that: A group of fixed clamp seats (240) for supporting and clamping the outer side of the right end of the workpiece are provided on the right side of the anti-slip pad (230) on the right side, and the fixed clamp seats (240) and the front adjustment shell (190) are an integrated structure, and the cross-sections of the front adjustment shell (190) and the fixed clamp seats (240) are a concave structure, and a group of guide grooves for guiding the movable clamp seats (220) are provided inside the front adjustment shell (190).

7. The quick clamping fixture for special-shaped workpieces according to claim 2, characterized in that: A group of inner movable seats for connecting with the inner movable limiter of the adjusting screw column 1 (160) are provided in the middle position inside the sleeve shell (170), and the connection method between the inner movable seat and the adjusting screw column 1 (160) is the same as the connection method between the movable clamp seat (220) and the adjusting screw column 2 (210).

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