CN215659335U

CN215659335U - Internal clamping fixture for bearing processing

Info

Publication number: CN215659335U
Application number: CN202121934481.5U
Authority: CN
Inventors: 陈燕; 王锐
Original assignee: Wuxi Steinberg Machinery Co ltd
Current assignee: Wuxi Steinberg Machinery Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-01-28
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses an internal clamping fixture for bearing processing, and provides the following technical scheme aiming at the problems of complex operation, time waste and labor waste in the prior art. The driving piece drives the movable clamping jaw to swing to drive the clamping cambered surface to move outwards and press the workpiece from the inside, and the whole process is simple to operate and time-saving and labor-saving; the detection head is connected with the guide seat in a sliding manner, so that the position of the detection head can be conveniently adjusted to adapt to workpieces of different specifications.

Description

Internal clamping fixture for bearing processing

Technical Field

The utility model relates to the field of bearing clamping, in particular to an internal clamping fixture for bearing processing.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig.

At present, chinese patent with application number 201910859836.X discloses a special fixture for grinding large-batch bearing inner rings, and the special fixture comprises a fixture body and a retaining seat, wherein the fixture body comprises six same fixture bodies concentrically arranged, trapezoidal second sliding blocks are machined at the bottoms of the 6 same fixture bodies, the fixture bodies can move on a guide groove through the matching of the taper with the guide groove with self-locking characteristics, 3 threaded holes are formed in the fixture body, locking countersunk head threaded holes are matched with screws, and the fixture bodies can be fixed through the screws in clamping.

Although the special fixture for grinding large-batch bearing inner rings can realize accurate positioning, when the special fixture is used for clamping, after the 6 same fixture bodies which are concentrically arranged move on the guide grooves to clamp the bearings, the special fixture needs to manually screw the screws to fix each fixture body, and the special fixture is complex in operation, time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an internal clamping fixture for bearing machining, which has the advantage of simple operation.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides an interior anchor clamps that press from both sides for bearing processing, includes the anchor clamps base to and connect the clamping device who is used for pressing from both sides tight work piece in the anchor clamps base, clamping device includes a plurality of concentric movable jack catchs of locating anchor clamps base luffing motion to and be used for driving the driving piece that movable jack catch moved, movable jack catch inner has upwards buckles and is used for outwards supporting the centre gripping cambered surface that presses the work piece, the anchor clamps base sets up a plurality of detection heads that are used for detecting whether the work piece targets in place.

Adopt above-mentioned technical scheme, clamping device includes a plurality of concentric movable jack catchs of locating anchor clamps base luffing motion, and be used for driving the driving piece that movable jack catch moved, movable jack catch inner has upwards buckles and is used for outwards supporting the centre gripping cambered surface that presses the work piece, driving piece drive movable jack catch luffing motion, be convenient for drive centre gripping cambered surface outwards remove, support from inside and press the work piece, the concentric setting is convenient for the centering of work piece, the anchor clamps base sets up a plurality of detection heads that are used for detecting whether the work piece targets in place, just carry out the manufacturing procedure on next step when the work piece is fixed a position to the processing position, the yield of processing has been improved, whole process easy operation, time saving and labor saving.

Furthermore, the detection head can be abutted against the workpiece at the processing position, an air outlet hole communicated with an air source is formed in the surface of the detection head abutted against the workpiece, the clamp base is provided with a pressure detection device communicated with the air source and used for detecting air pressure, and the pressure detection device is electrically connected with an alarm device.

Adopt above-mentioned technical scheme, it can offset with the work piece at the processing position to detect the head, it is equipped with the venthole of intercommunication air supply to detect the head on the face that the head offseted with the work piece, the venthole is stopped up with detecting the head when the work piece location is to the processing position, gaseous revealing from the venthole when the work piece location is to the processing position, be convenient for detect the work piece and fix a position the processing position, the anchor clamps base sets up the pressure measurement device that the intercommunication air supply is used for detecting atmospheric pressure, atmospheric pressure when gaseous leakage is less than the atmospheric pressure when not leaking, be convenient for distinguish whether the work piece is fixed a position the processing position, pressure measurement device electricity is connected with the alarm, warn when the work piece location is inaccurate, be convenient for relocate.

Further, the clamp base is fixed with a guide seat used for installing a detection head, the guide seat is connected with the detection head in a sliding mode, and the detection head is located on the guide seat through a fastening piece.

By adopting the technical scheme, the clamp base is fixed with the guide seat for installing the detection head, the guide seat is connected with the detection head in a sliding manner, the position of the detection head can be conveniently adjusted to adapt to workpieces of different specifications, the detection head is positioned on the guide seat through the fastening piece, and the stability of the detection head during working is improved.

Further, the guide seat is provided with a cavity communicated with an air source, the guide seat is provided with a plurality of air holes communicated with the cavity, the guide seat is provided with a plurality of hole plugs matched with the air holes and detachable, and the air outlet penetrates through the detection head and can be communicated with the air holes.

Adopt above-mentioned technical scheme, the guide seat sets up the cavity of intercommunication air supply, and the guide seat is equipped with the air vent of a plurality of intercommunication cavities, and the guide seat sets up a plurality ofly and air vent matching and detachable stopple, avoids gas leakage to influence the testing result, and the venthole runs through the detection head can with the air vent intercommunication, and the cavity in the guide seat of the gas supply passes through the air vent and carries to in the venthole, has saved outside numerous and diverse pipeline, avoids exposing in the processing environment, and is not fragile.

Furthermore, the guide seat is provided with a second sliding groove for the sliding of the detection head, and the detection head is provided with a second sliding block matched with the second sliding groove.

By adopting the technical scheme, the guide seat is provided with the second sliding groove for the sliding of the detection head, the detection head is provided with the second sliding block matched with the second sliding groove, and the sliding adjustment position of the detection head on the guide seat is convenient.

Furthermore, the movable clamping jaws are uniformly distributed on the clamp base in 360 degrees.

By adopting the technical scheme, the movable clamping jaws are uniformly distributed on the clamp base in 360 degrees, so that the workpiece is uniformly stressed during clamping, and the deformation of the workpiece due to nonuniform stress is avoided.

In conclusion, the utility model has the following beneficial effects:

1. the movable clamping jaw, the driving piece and the upwards bent clamping arc surface are arranged, the driving piece drives the movable clamping jaw to swing and drives the clamping arc surface to move outwards to press a workpiece from the inside, and the whole process is simple to operate and time-saving and labor-saving;

2. a detection head for detecting whether the workpiece is in place is arranged, and the next machining procedure is carried out when the workpiece is positioned to the machining position, so that the machining yield is improved;

3. the detection head is connected with the guide seat in a sliding mode, the position of the detection head can be adjusted conveniently to adapt to workpieces of different specifications, the detection head is located on the guide seat through the fastening piece, and stability of the detection head during working is improved.

Drawings

FIG. 1 is a perspective view of an internal clamp fixture for bearing machining in an embodiment;

FIG. 2 is an exploded view of an inner clamp fixture for bearing machining in an embodiment;

fig. 3 is a schematic structural diagram of a guide seat and a detection head of an internal clamp fixture for bearing machining in the embodiment.

In the figure: 1. a clamp base; 11. a card slot; 111. a first chute; 12. a first through hole; 13. a second through hole; 2. a clamping device; 21. a drive member; 22. a movable jaw; 221. clamping the cambered surface; 3. a detection head; 31. an air outlet; 32. a second slider; 33. positioning holes; 4. a pipeline; 5. a workpiece; 6. a guide seat; 61. a cavity; 62. a second chute; 63. a vent hole; 64. a hole plug; 7. a connecting member; 71. a fastener; 711. a first slider.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

An internal clamping fixture for bearing processing, see fig. 1 and fig. 2, comprises a fixture base 1 and a clamping device 2, wherein the clamping device 2 is connected to the top surface of the fixture base 1, the clamping device 2 is used for clamping a workpiece 5, the clamping device 2 comprises a plurality of movable jaws 22 and a driving member 21, the driving member 21 is fixed to the fixture base 1, the movable jaws 22 are concentrically arranged on the top surface of the fixture base 1, the movable jaws 22 are movably connected with the fixture base 1 and can swing up and down, one end of each movable jaw 22 close to the center of the fixture base 1 is an inner end, the inner end of each movable jaw 22 is provided with an upward bent clamping arc surface 221, the driving member 21 drives the movable jaw 22 to swing up to drive the clamping arc surface 221 to move outwards to press the inside of the workpiece 5, the workpiece 5 is positioned and clamped, the fixture base 1 is provided with a plurality of detection heads 3, the detection heads 3 are used for detecting whether the workpiece 5 is positioned at a processing station, and when the positioning is accurate, the next step of processing is carried out.

Specifically, referring to fig. 1 and fig. 2, six movable claws 22 are uniformly distributed on a fixture base 1 in 360 degrees, the movable claws 22 are connected with the fixture base 1 through a connecting piece 7, one end of each movable claw 22, which is far away from the center of the fixture base 1, is fixed at the top end of the connecting piece 7 through a fastening piece, the bottom end of the connecting piece 7 protrudes to form a clamping piece 71, the clamping piece 71 is in the shape of a disc with three quarters, two side walls of the clamping piece 71 are provided with first sliding blocks 711, the fixture base 1 is provided with clamping grooves 11 matched with the clamping piece 71, two side walls of the clamping groove 11 of the fixture base 1 are provided with first sliding grooves 111 for the first sliding blocks 711 to slide, the first sliding grooves 111 are in the shape of an arc, the first sliding blocks 711 are conveniently limited to slide along the arc, the connecting piece 7 is driven to vertically rotate, the movable clamping piece is driven to swing, the driving piece 21 is selected from an oil cylinder, the fixture base 1 is provided with first through holes 12 for the piston rod of the driving piece 21 to pass through, the first through hole 12 penetrates through the clamp base 1, the driving part 21 is fixed on the bottom surface of the clamp base 1, and a piston rod of the driving part 21 penetrates through the clamp base 1 through the first through hole 12 to abut against the bottom surface of the movable clamping jaw 22.

Referring to fig. 1, 2 and 3, a guide seat 6 is fixed on a fixture base 1 through a fastener, the guide seat 6 is movably connected with three detection heads 3, a second slide block 32 for slidably connecting the guide seat 6 is arranged on the bottom surface of each detection head 3, a second chute 62 for allowing the detection head 3 to slide is formed in the guide seat 6 along the radial direction of the fixture base 1, the detection head 3 is positioned on the guide seat 6 through the fastener, positioning holes 33 for connecting the fastener are formed in two sides of the detection head 3, the three detection heads 3360 degrees are uniformly distributed on the guide seat 6, the top surface of the detection head 3 is flush with the bottom surface of a workpiece 5 positioned to a machining position and can abut against the workpiece 5 at the machining position, a cavity 61 is formed in the guide seat 6, the bottom of the guide seat 6 is connected with a pipeline 4 for communicating the cavity 61 with an air source, a second through hole 13 for the pipeline 4 to pass through is formed in the bottom of the fixture, a plurality of vent holes 63 for communicating the cavity 61 are formed in the bottom surface of the second chute 62 of the guide seat 6, guide 6 sets up a plurality of hole plugs 64 that match with air vent 63, hole plug 64 accessible air vent 63 blocks up air vent 63 with guide 6 threaded connection, the top surface of detecting head 3 is equipped with venthole 31, venthole 31 runs through and detects head 3 and second slider 32, it slides to the station of processing to detect head 3, one of them air vent 63 is aimed at to venthole 31, gas is in pipeline 4 to cavity 61 from the air supply, again through this air vent 63 to in the venthole 31, other air vent 63 are blocked up with hole plug 64, avoid influencing the testing result, anchor clamps base 1 sets up the pressure measurement device that the intercommunication air supply is used for detecting atmospheric pressure, pressure measurement device electrically connects alarm device, alarm device is used for the suggestion when the location is inaccurate.

The working process and principle of the embodiment are as follows:

when the device works, the detection head 3 slides to a processing position, the fastener is screwed down to fix the detection head 3 on the guide seat 6, then the workpiece 5 is placed on the movable clamping jaw 22, the piston rod of the driving piece 21 extends out to abut against the bottom surface of the movable clamping jaw 22 to drive the movable clamping jaw 22 to swing upwards, the clamping arc surface 221 is driven to move outwards to drive the workpiece 5 to move to center the workpiece 5 and abut against the inner wall of the workpiece 5 to clamp the workpiece 5, when the workpiece 5 is accurately positioned, the workpiece 5 is placed on the processing position, the bottom surface of the workpiece 5 abuts against the top surface of the detection head 3 to block the air outlet 31, air cannot leak, the pressure detection device can continue processing when detecting normal pressure, when the workpiece 5 is inaccurately positioned, the workpiece 5 is not placed on the processing position, a gap is left between the bottom surface of the workpiece 5 and the top surface of the detection head 3, air leaks from the air outlet 31, the pressure detection device detects the pressure of air leakage, and the alarm device gives an alarm, needs to be repositioned. The whole process is simple to operate, and time and labor are saved.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides an interior anchor clamps that press from both sides for bearing processing, includes anchor clamps base (1) to and connect in anchor clamps base (1) and be used for pressing from both sides clamping device (2) of tight work piece (5), its characterized in that: clamping device (2) include a plurality of concentric movable jack catchs (22) of locating anchor clamps base (1) luffing motion to and be used for driving piece (21) that movable jack catch (22) moved, activity jack catch (22) inner has and upwards buckles and is used for outside centre gripping cambered surface (221) that support and press work piece (5), anchor clamps base (1) sets up a plurality of detection heads (3) that are used for detecting whether work piece (5) target in place.

2. The internal clamp jig for bearing machining according to claim 1, characterized in that: the detection head (3) can be abutted against the workpiece (5) at a processing position, an air outlet (31) communicated with an air source is arranged on the abutted surface of the detection head (3) and the workpiece (5), the clamp base (1) is provided with a pressure detection device communicated with the air source and used for detecting air pressure, and the pressure detection device is electrically connected with an alarm device.

3. The internal clamp jig for bearing machining according to claim 2, characterized in that: the fixture base (1) is fixed with a guide seat (6) used for installing the detection head (3), the guide seat (6) is connected with the detection head (3) in a sliding mode, and the detection head (3) is located on the guide seat (6) through a fastener.

4. The internal clamp jig for bearing machining according to claim 3, characterized in that: guide holder (6) set up cavity (61) of intercommunication air supply, guide holder (6) are equipped with air vent (63) of a plurality of intercommunication cavities (61), guide holder (6) set up a plurality ofly match and detachable hole stopper (64) with air vent (63), venthole (31) run through detect head (3) can communicate with air vent (63).

5. The internal clamp jig for bearing machining according to claim 3, characterized in that: the guide seat (6) is provided with a second sliding groove (62) for the sliding of the detection head (3), and the detection head (3) is provided with a second sliding block (32) matched with the second sliding groove (62).

6. The internal clamp jig for bearing machining according to any one of claims 1 to 5, characterized in that: the movable clamping jaws (22) are uniformly distributed on the clamp base (1) in 360 degrees.