TWM538845U - Automatic positioning clamp jig for wheel rim machining - Google Patents

Description

Automatic positioning clamping fixture applied to rim processing

This creation relates to an automatic positioning clamping fixture applied to rim machining, especially one that is suitable for five-axis rotary table, and has the functions of airtight detection, automatic positioning and clamping, and automatic chip removal. Automatic clamping fixture.

Generally, the rims for automobiles or trucks must be cut by tools, and then the structure of the hub and the spokes can be processed. Nowadays, the machining method has been processed by CNC integrated processing machine, and the CNC integrated processing machine can be used to achieve automatic production. the goal of. However, in today's clamping fixtures for holding rims, there are still many designs using manual discharge, such as the rim processing machine shown in the patent publication M456290, and the rim processing device shown in M515963. The fixture can not meet the goal of fully automated production with the robot arm. The more advanced clamping fixture that can be installed in the CNC machining machine, such as the rim four-axis fixture and the M477330 clamp device shown in the patent publication M489715, is fixed on a rotary table. The jig has a longitudinal and lateral piston tube pushing the block to clamp the inner wall of the rim; however, the longitudinal and lateral piston tubes push the structure of the block, so that the structure of the light is relatively complicated. The relative manufacturing cost is relatively high, and other functions cannot be performed. For example, when cutting, the chips falling into the rim are difficult to be automatically discharged, thus affecting the feasibility of fully automated processing.

The main purpose of this creation is to provide an automatic positioning clamping fixture for rim processing, which uses the airtight detection technology to detect the rim workpiece on the clamping fixture, thereby achieving automatic and rapid detection of the rim workpiece clamping. The purpose of the state.

The second objective of the present invention is to provide an automatic positioning and clamping jig for use in rim machining, which uses the positioning technology of a vertical hydraulic collet and a plurality of clamping devices surrounding the rim to achieve Automatic positioning and automatic clamping, precision clamping of rim workpieces, and adaptation of the robot arm with CNC integrated processing machine for automated production.

Another object of the present invention is to provide an automatic positioning and clamping jig for use in rim machining, which uses automatic liquid jet technology to wash away chips during processing and prevent chips from interfering with tool processing.

Other purposes of this creation include the simplification of the construction of the automatic positioning and clamping fixture applied to the rim processing, and the reduction of the cost of the clamping fixture.

In order to achieve the above object, the preferred technical solution for the automatic positioning and clamping fixture applied to the rim processing comprises: a base having a bottom surface for fixing, and a bearing surface opposite to the bottom surface, at least Connecting a central portion of the bearing surface from the bottom surface; a column which is a column disposed on the bearing surface above the central portion of the base; and a side chip discharging device having a set of the column a liquid supply ring seat for circulating liquid fixed on the bearing surface of the base, and a first side nozzle for respectively discharging liquid on the side of the liquid supply ring seat; a vertical hydraulic chuck, the center thereof Nested on the column and fixed on the liquid supply ring seat, a top surface thereof is provided with at least two jaw blocks capable of moving radially toward the column or away from the column; a positioning jaw unit having at least Two positioning clips respectively fixed on the jaw block, the side surface of the positioning clip has a friction surface for abutting against a hole wall of a central hole of the rim; and a plurality of carriers disposed on the base Airtight detection unit on the surface, the gas The detecting unit has a contact surface abutting against the rim, and a first air hole from one end of the airtight detecting unit to the contact surface, and the other end of the first air hole is connected to a gas flow detector And a plurality of clamping devices disposed on the bearing surface around the lateral chip removal device for clamping around the rim.

The structural features of the present creation and other functions and purposes are described in detail in the following embodiments:

Referring to FIG. 1 and FIG. 7 , the automatic positioning clamping fixture applied to the rim processing of the present invention is used for setting on a CNC Tilting Rotary Table 10, and can be positioned and clamped. A rim 20 is held for cutting the rim 20 by a cutter 30 of a CNC machining machine. The rim 20 is usually a rim of a wheel having a diameter of 20 inches or more, but is not limited to the rim of the card.

Referring to FIG. 2, FIG. 3 and FIG. 4, a preferred embodiment of the present invention comprises: a base 1 having a bottom surface 11 for fixing to the five-axis rotary table 10, At least one of the bearing surface 12 of the bottom surface 11 communicates with the central portion 13 of the bearing surface. The base 1 can be embodied as a flat body. A column 2, which is a cylinder disposed on the bearing surface 12 above the central portion 13 of the base 1, and may be a circular or polygonal class cylinder. a side-side chip discharge device 3 having a set of liquid supply ring seats 31 disposed on the column 2 and fixed to the bearing surface 12 of the base 1 for circulating liquid, the liquid being a working liquid for washing away the chips And a plurality of first side nozzles 32 for respectively discharging the liquid on the side of the liquid supply ring seat 31. The first side nozzle 32 is preferably a spherical universal nozzle (Adjustable Nozzle). a vertical hydraulic chuck 4, the center of which is sleeved on the column 2 and fixed on the liquid supply ring seat 31, and a top surface 41 is provided with at least two horizontally movable radial directions to the column 2 or Along from the jaw block 42 of the column 2, the jaw block 42 is horizontally movable by hydraulic pressure. a positioning jaw unit 5, which is a member for contacting and positioning the rim 20, has at least two positioning clips 51 respectively fixed to the jaw block 42, the side of the positioning clip 51 having a a friction surface 52 for abutting against an inner bore wall of a center hole 201 of the rim 20, whereby the positioning block 51 is horizontally moved by the jaw block 42 of the vertical hydraulic chuck 4, thereby The friction surface 52 can abut against the inner bore wall of the central bore 201 of the rim 20 to effect the positioning of the rim 20. a plurality of airtight detecting units 6 disposed on the bearing surface 12 of the base 1, the airtight detecting unit 6 having a contact surface 61 abutting against the rim 20, and an end from the airtight detecting unit 6 is internally connected to a first air hole 62 of the contact surface 61, and the other end of the first air hole 62 is connected to a gas flow detector 63. And a plurality of clamping devices 7 disposed on the bearing surface 12 around the lateral chip removal device 3 for clamping the flange 202 of the rim 20, thereby forming an automatic application for rim processing. Position the clamp fixture.

Referring to FIG. 3 and FIG. 4, the preferred embodiment of the present invention further includes a plurality of upper chip discharging devices 8, each of which has a top surface 41 disposed on the vertical hydraulic chuck 4. a liquid supply seat 81 for circulating a liquid, and at least one second side nozzle 82 coupled to a side surface of the liquid supply base 81 for ejecting liquid, and the second side nozzle 82 is also a spherical universal nozzle (Adjustable) Nozzle). Further, an annular outer cover 9 is disposed around the vertical hydraulic chuck 4, and the outer cover 9 is formed by joining two or more curved pieces 91, and is provided with a hole at a position corresponding to the second side nozzle 82. 92, the second side nozzle 82 is protruded from the inside of the outer cover 9 to the outside of the outer cover 9, for ejecting the working liquid that washes away the chips.

Referring to FIG. 4, the present invention causes the first side nozzle 32 and the second side nozzle 82 to eject a working liquid that washes away chips. The liquid supply structure is preferably implemented as a hidden structure, which is included in the configuration. The central portion 13 of the base 1 is provided with a plurality of first liquid supply channels 14 communicating with the bottom surface 11 and the bearing surface 12; the column body of the column 2 is provided with a plurality of second liquid supply channels connected to one side and a top surface thereof. 21, the second liquid supply channel 21 is connected to the first liquid supply channel 14, and the second liquid supply channel 21 can respectively communicate with the liquid supply base 81 of the upper chip discharge device 8, and the lateral discharge chip a liquid supply ring seat 31 of the device 3; wherein the liquid supply ring seat 3 is provided with a plurality of third liquid supply channels 33 communicating with one end thereof to the side thereof, and the other end of the third liquid supply channel 33 is connected to the first liquid supply channel 14 or the second liquid supply channel 21, and the first side nozzles 32 are respectively coupled to the outlet end of the third liquid supply channel 33 on the side of the liquid supply ring seat 31. The liquid supply ring seat 31 of the lateral chip discharge device 3 is configured to facilitate the implementation of the third liquid supply channel 33. The preferred embodiment includes a lower ring body 311 and a upper ring body stacked on the lower ring body 311. 312, and an upper ring cover 313 stacked on the upper ring body 312, so that the third liquid supply channel 33 can be respectively processed in the lower ring body 311 and the upper ring body 312, and the lower ring body 311 and the upper ring are respectively formed. A plurality of the first side nozzles 32 are respectively coupled to the sides of the body 312.

Referring to FIG. 3 and FIG. 4, the vertical hydraulic collet 4 is specifically embodied with a collet body 43 disposed on the column 2 and fixed to the liquid supply ring seat 31. a sliding block 44 in the chuck body 43, the sliding block 44 is hydraulically driven to move horizontally toward the column 2 or away from the column 2, and three of the sliders 44 are respectively fixed on the sliding block 44. Preferably, the positioning jaw unit 5 is provided with three positioning clamps 51, each of the positioning clamps 51 is a sector, whereby the friction surfaces 52 of the three positioning clamps 51 are provided. They are combined into a toroidal surface for abutting against the inner bore wall of the central bore 201 of the rim 20.

Referring to FIG. 5 and FIG. 6 , the airtight detecting unit 6 is preferably provided with a support post 64 . The upper end surface of the support post 64 serves as the contact surface 61 for supporting the convexity of the rim 20 . The rim 202, the first air hole 62 is disposed in the support column 64 and communicates with the bottom end of the support column 64; and the base 1 is provided with a second air hole 15 communicating with the first air hole 62, the second air hole 15 is connected to the gas flow detector 63 hidden in the base 1. Thereby, the rim 20 is placed on the contact surface 61 of the support column 64, and is clamped and stabilized by the positioning jaw unit 5 on the vertical hydraulic chuck 4 and the surrounding clamping device 7. Thereafter, the gas flow detector 63 can supply gas to the second air hole 15 and the first air hole 62. If the edge of the rim 20 does form a closed shape against the contact surface 61, the gas does not pass from the gas. The first air hole 62 leaks out. If the edge of the rim 20 does not abut against the contact surface 61, gas will leak from the contact surface 61, so the gas flow detector 63 can sense and signal The alarm device is notified to prevent processing size errors or improper clamping and damage to the processing machine and the like.

Referring to FIG. 5 and FIG. 6 , the clamping device 7 preferably includes an actuating cylinder 71 , which may be a hydraulic cylinder or a steam cylinder, and is pivotally connected to the actuating cylinder 71 . a lever 72, one end of the lever 72 is pivotally connected to an actuating shaft 711 at one end of the actuating cylinder 71, and the other end of the lever 70 is provided with a clamping block 73 pressed against the flange 202 of the rim 20, the clamping block 73 A clamping surface 731 corresponds to the contact surface 61 of the airtight detection unit 6.

When the present invention is used for positioning and clamping a rim 20 for processing, as shown in FIG. 7, the implementation steps include: (a) grasping a rim 20 by a robot arm (not shown), and arranging the rim 20 The center hole 201 is sleeved in the positioning jaw unit 5; (b) then the vertical hydraulic chuck 4 is automatically controlled to drive the positioning clips 51 to unfold, so that the friction surface 52 of the positioning block 51 is temporarily supported. a central hole 201 of the rim 20; (c) the robot arm (not shown) releases the rim 20 and exits the CNC machining machine; (d) the vertical hydraulic chuck 4 can further drive the positioning The clamping block 51 is repeatedly folded and unfolded once, so that the edge of the rim 20 is surely abutted against the contact surface 61 of the airtight detecting unit 6; (e) the clamping device 7 is activated to make the actuating cylinder The lever 72 is pushed to cause the clamp 73 at one end of the lever 72 to press down against the flange 202 of the rim 20; (f) the size measurement of the rim 20 is performed again, and the airtight detection can be initiated. The unit 6 supplies air to the first air hole 62, thereby detecting whether the edge of the rim 20 is surely abutting against the contact surface 61 at the upper end of the support column 64; if there is a leak , Re-executing the step (D); the other hand, the absence of air leakage, to begin the cutting tool 30.

Furthermore, referring to FIG. 7, the present invention can continuously eject liquid from the first side nozzle 32 and the second side nozzle 82 during the cutting process of the cutter 30, so that the liquid will fall into the rim 20. The chip is flushed onto the base 1. Since the rim 20 is raised by the support post 64, the chip can be rushed away from the clamping jig from the gap between the lower side of the rim 20 and the base 1 to prevent chipping Go to the processing work.

In summary, the automatic positioning and clamping fixture used in the rim processing has been practical and progressive. The application of its technical means is also novel and undoubted, and the efficacy and design purpose are in line with it. Reasonable progress to the clear. To this end, a new type of patent application is filed in accordance with the law, but the bureau is requested to give a detailed examination and grant the patent as a prayer.

10‧‧‧5-axis rotary table
20‧‧‧ rims
201‧‧‧ center hole
202‧‧‧Flange
30‧‧‧Tools
1‧‧‧Base
11‧‧‧ bottom
12‧‧‧ bearing surface
13‧‧‧ Central Department
14‧‧‧First liquid supply channel
15‧‧‧second vent
2‧‧‧ column
21‧‧‧Second liquid supply channel
3‧‧‧Side chip removal device
31‧‧‧Liquid ring seat
311‧‧‧ Lower ring body
312‧‧‧Upper body
313‧‧‧Upper ring cover
32‧‧‧First side nozzle
33‧‧‧ third liquid supply channel
4‧‧‧Vertical hydraulic chuck
41‧‧‧ top surface
42‧‧‧claw block
43‧‧‧ chuck body
44‧‧‧Sliding block
5‧‧‧ positioning jaw unit
51‧‧‧ positioning clamp
52‧‧‧ Friction surface
6‧‧‧Airtight detection unit
61‧‧‧Contact surface
62‧‧‧First air hole
63‧‧‧Gas flow detector
64‧‧‧Support column
7‧‧‧Clamping device
71‧‧‧Acoustic cylinder
711‧‧‧ actuation axis
72‧‧‧Leverage
73‧‧‧Clamps
731‧‧‧ clamping surface
8‧‧‧Up chip removal device
81‧‧‧Liquid seat
82‧‧‧Second side nozzle
9‧‧‧ Cover
91‧‧‧ Curved piece
92‧‧‧Opening

Figure 1 is a schematic view of the creation of a clamping fixture mounted on a five-axis rotary table. FIG. 2 is a schematic perspective view of the creation of the clamping fixture. Fig. 3 is an exploded perspective view showing the main components of the gripping jig. Figure 4 is a schematic cross-sectional view of the combination of the creation of the clamping fixture. FIG. 5 is a schematic perspective view of the airtight detecting unit and the clamping device. FIG. 6 is a schematic view showing the state of use of the airtight detecting unit and the clamping device. Fig. 7 is a schematic view showing the processing of the clamping fixture for holding the clamping rim.

1‧‧‧Base

11‧‧‧ bottom

12‧‧‧ bearing surface

3‧‧‧Side chip removal device

31‧‧‧Liquid ring seat

311‧‧‧ Lower ring body

312‧‧‧Upper body

313‧‧‧Upper ring cover

32‧‧‧First side nozzle

4‧‧‧Vertical hydraulic chuck

43‧‧‧ chuck body

5‧‧‧ positioning jaw unit

51‧‧‧ positioning clamp

52‧‧‧ Friction surface

6‧‧‧Airtight detection unit

61‧‧‧Contact surface

64‧‧‧Support column

7‧‧‧Clamping device

71‧‧‧Acoustic cylinder

711‧‧‧ actuation axis

72‧‧‧Leverage

73‧‧‧Clamps

82‧‧‧Second side nozzle

9‧‧‧ Cover

91‧‧‧ Curved piece

Claims (9)

An automatic positioning clamping fixture for rim machining, which is used for positioning and clamping a rim for cutting a rim by a cutter, comprising: a base having a bottom surface for fixing a column opposite to the bearing surface of the bottom surface, at least one of which is connected to the central portion of the bearing surface; a column which is a column disposed on the bearing surface above the central portion of the base; and a side chip discharging device The utility model has a set of liquid supply ring seat arranged on the support post and fixed on the bearing surface of the base for circulating liquid, and a plurality of first side nozzles respectively combined on the side of the liquid supply ring seat for discharging liquid; a vertical hydraulic chuck, the center of which is sleeved on the column and fixed on the liquid supply ring seat, and a top surface thereof is provided with at least two jaw blocks capable of moving radially toward the column or away from the column a positioning jaw unit having at least two positioning clamps respectively fixed to the jaw block, the side of the positioning clamp having a friction against a bore wall of a central hole of the rim Face; most of them are placed on the bearing surface of the base a gas tightness detecting unit having a contact surface abutting against the rim and a first air hole from one end of the airtight detecting unit to the contact surface, the first air hole One end is connected to a gas flow detector; and a plurality of the bearing surfaces disposed around the lateral chip removal device are used to clamp the clamping device around the wheel. The automatic positioning clamping fixture applied to the rim processing according to claim 1, further comprising a plurality of upper chip discharging devices, each of the upper chip discharging devices having a top surface disposed on the vertical hydraulic chuck a liquid supply seat for circulating liquid, and at least one second side nozzle for combining the liquid on the side of the liquid supply seat for ejecting liquid. The automatic positioning clamping fixture applied to the rim processing according to claim 2, further comprising a cover surrounding the vertical hydraulic chuck, the second side nozzle protruding from the inside of the outer cover to the outer cover The outside. The automatic positioning and clamping fixture applied to the rim processing according to claim 2, wherein a central portion of the base is provided with a plurality of first liquid supply passages connecting the bottom surface and the bearing surface; a second liquid supply channel communicating with a side surface and a top surface, the second liquid supply channel communicating with the first liquid supply channel, the second liquid supply channel respectively communicating with the liquid supply seat of the upper chip discharge device and the a liquid supply ring seat of the lateral chip discharge device; the liquid supply ring seat is provided with a plurality of third liquid supply channels connected to the side thereof, the third liquid supply holes communicating with the first liquid supply channel or the second liquid supply a channel, the first side nozzle is respectively coupled to the third liquid supply port outlet end of the side of the liquid supply ring seat. The automatic positioning clamping fixture applied to the rim processing according to claim 4, wherein the liquid supply ring seat comprises a lower ring body, an upper ring body stacked on the lower ring body, and a stack on the upper ring body The upper ring cover, the lower ring body and the upper ring body are respectively provided with the third liquid supply hole, and the lower ring body and the side surface of the upper ring body respectively have a plurality of the first side nozzles. The automatic positioning clamping fixture applied to the rim processing according to claim 1, wherein the vertical hydraulic chuck has a set of chuck bodies disposed on the column and fixed on the liquid supply ring seat, three a sliding block disposed in the chuck body, the sliding block being driven by hydraulic pressure to move radially toward the column or away from the column, and three jaw blocks respectively fixed to the sliding block; The positioning jaw unit has three positioning clamps, the positioning clamps are sectors, and the friction surfaces of the three positioning clamps are merged into a ring for abutting against the inner wall of the central hole of the wheel surface. The automatic positioning and clamping fixture applied to the rim processing according to claim 1, wherein the airtight detecting unit has a supporting column, the end surface of the supporting column is the contact surface, and the supporting column is provided with the first a gas hole; and the base is provided with a second air hole communicating with the first air hole, and the second air hole is connected to the gas flow detector. The automatic positioning clamping fixture applied to the rim processing according to claim 1, wherein the clamping device comprises a matching moving cylinder, a lever pivotally connected to the actuating cylinder, and one end of the lever is pivotally connected to the actuation An actuating shaft of the cylinder, the other end of the lever is provided with a clamping block pressed around the rim, and a clamping portion of the clamping block faces a contact surface of the airtight detecting unit. The automatic positioning clamping fixture applied to the rim processing according to claim 8, wherein the actuation cylinder is a hydraulic cylinder or a steam pressure cylinder.