CN203936665U - A kind of mesochite divides middle special fixture - Google Patents
A kind of mesochite divides middle special fixture Download PDFInfo
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- CN203936665U CN203936665U CN201420341994.9U CN201420341994U CN203936665U CN 203936665 U CN203936665 U CN 203936665U CN 201420341994 U CN201420341994 U CN 201420341994U CN 203936665 U CN203936665 U CN 203936665U
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Abstract
The utility model proposes a kind of mesochite and divide middle special fixture, its technical essential is: the center reference point of take on clamp bottom board is foundation, be provided with longitudinal umbrella shape Chi Fenzhong mechanism and 2 horizontal umbrella shape Chi Fenzhong mechanisms, 2 horizontal umbrella shape Chi Fenzhong mechanisms are symmetrical, and 2 horizontal umbrella shape Chi Fenzhong mechanisms are positioned on longitudinal umbrella shape Chi Fenzhong mechanism in short transverse; The center reference point of take on clamp bottom board is foundation, is fixed with central shaft, and the top of central shaft is fixed with gripper shoe, and the center of gripper shoe is provided with supporting member; On central shaft, be set with center assembly, between the upper end of center assembly and gripper shoe, be provided with extension spring device; On clamp bottom board, be fixed with 4 the first float support oil cylinders, with 4 the first float support oil cylinders corresponding hydraulic strip clamp that is provided with one by one.Use the utility model, location, guiding, support, minute in all in workpiece cavity, can avoid workpiece deformation.The utlity model has advantage succinct, compact, proportional space layout.
Description
Technical field
The utility model relates to the fixture of shell product in processing casting gearbox, and especially a kind of mesochite divides middle special fixture.
Background technology
Ten four-speed gear shift case mesochites, housing design wall thickness is 6 millimeters, inner chamber complicated crucial reverse gear hole and control stick hole site must be guaranteed.At present, the hole in the fixture of gearbox mesochite the first order employing exocoel and wherein outer surface location processing faying face and two dowel holes.
Shortcoming: the above-mentioned location that adds operation clamps scheme and is conventionally difficult to avoid the interference of inner chamber distortion to assembling parts, gearbox inner chamber overweights exocoel, for box parts deformation of products, be inevitably, how break away from the impact of inner chamber distortion on housing key position.
Summary of the invention
The utility model proposes a kind of mesochite and divide middle special fixture, float and locate in employing middle part, some jig Design thinking spacing, inner chamber middle centering in not contour 6 o'clock minutes of inner chamber, location, guiding, support, minute middle centering, all at inner chamber, can be avoided workpiece (mesochite) distortion the in the situation that of location, clamping mesochite.
For this reason, the technical solution adopted in the utility model is as follows: a kind of mesochite divides middle special fixture, comprises clamp bottom board, it is characterized in that:
(1) on clamp bottom board, take center reference point is foundation, be provided with longitudinal umbrella shape Chi Fenzhong mechanism and 2 horizontal umbrella shape Chi Fenzhong mechanisms, 2 horizontal umbrella shape Chi Fenzhong mechanisms are symmetrical, and 2 horizontal umbrella shape Chi Fenzhong mechanisms are positioned on longitudinal umbrella shape Chi Fenzhong mechanism in short transverse;
(1.1) structure of described horizontal umbrella shape Chi Fenzhong mechanism:
(1.1.1) comprise a minute middle body, in minute, body bilateral symmetry arranges the left pilot hole of tape guide cover, the right pilot hole of tape guide cover, and in dividing, the center of body has installation cavity; In left pilot hole, right pilot hole, be sliding combined with respectively left push rod, right push rod, top is all equipped with in the outer end of left push rod and right push rod;
(1.1.2) in installation cavity, bilateral symmetry setting is provided with left sector tooth block, right sector tooth block, the centre bore of left sector tooth block and right sector tooth block is hinged on minute middle body, the outer end of left push rod and right push rod is all provided with tooth bar, the tooth bar engagement that left sector tooth block and right sector tooth block are corresponding;
(1.1.3) in dividing, the bottom of body is fixed with cylinder installation seat, one drives oil cylinder to be upwards arranged on cylinder installation seat, on the piston rod of driving oil cylinder, be fixed with pull bar, on left sector tooth block and right sector tooth block, be inwardly extended with linking arm, the linking arm of left sector tooth block and the linking arm of right sector tooth block are hinged on pull bar by bearing pin; Drive hydraulic oil cylinder driving pull bar, pull bar drives left sector tooth block and right sector tooth block to swing, and makes left push rod and right push rod do symmetrical inside contracting or overhanging rectilinear motion;
(1.2) longitudinally the structure of umbrella shape Chi Fenzhong mechanism is identical with the structure of horizontal umbrella shape Chi Fenzhong mechanism, is that dimensional parameters is different;
(2) directed guide colume type structure in the middle of: the center reference point of take on clamp bottom board is foundation, is fixed with central shaft, and the top of central shaft is fixed with gripper shoe, and the center of gripper shoe is provided with supporting member;
(3) middle part float support structure: on central shaft, be set with center assembly, between the upper end of center assembly and gripper shoe, be provided with extension spring device, make center assembly with respect to central axis in elasticity suspended state;
(3.1) structure of described center assembly:
(3.1.1) center is slidably matched on central shaft, between center and central shaft, is provided with feather key, and center can only be moved up and down along central shaft; The upper end of extension spring device is connected with gripper shoe, and the lower end of extension spring device is connected to center upper end;
(3.1.2) lower end of center is fixed with connecting plate, is distributed with first piece, second piece, the 3rd piece on connecting plate;
(3.1.3) first piece syndeton on connecting plate: be fixed with bearing on connecting plate, bearing stretches out and is provided with installing hole, a connecting axle rolls to coordinate by installing hole and is supported on bearing, and first piece is fixed by screws in the outer end of connecting axle; At bearing, be provided with elastic steel ball positioner, the steel ball of elastic steel ball positioner withstands in the arc groove of connecting axle;
(3.1.4) second piece and the syndeton of the 3rd piece on connecting plate are identical with first piece;
(3.1.5) setting of elastic steel ball positioner, makes the described connecting axle can be in circumferencial direction minor rotation, to compensate first piece, second piece and the 3rd piece height error each other;
(4) be positioned at center assembly peripheral, on clamp bottom board, be fixed with 4 the first float support oil cylinders, with 4 the first float support oil cylinders corresponding hydraulic strip clamp that is provided with one by one.
Further restriction to technique scheme: be uniformly distributed along the circumference in described gripper shoe and be fixed with 4 the second float support oil cylinders, can better withstand workpiece, further improve strength and stiffness, prevent from when processed being subject to cutting force and being out of shape.
Further restriction to technique scheme: the both sides correspondence of clamp bottom board is provided with left column, right column, the upper end of left column and the upper end of right column are fixed with respectively 2 the 3rd float support oil cylinders, the 3rd float support oil cylinder can withstand workpiece from periphery, further improve strength and stiffness, prevent from when processed being subject to cutting force and being out of shape.
Beneficial effect: during use, top by work piece hoisting to fixture, slowly put into fixture downwards, adopt middle directed guide colume type structure to realize inner chamber a bit spacing, middle part float support structure realizes unsteady location, middle part, umbrella shape tooth divides centering in not contour 6 o'clock minutes of middle winding machine inner chamber, location, guiding, support, minute in all in workpiece cavity, the in the situation that of location, clamping work pieces, can avoid workpiece (mesochite) distortion.The utlity model has advantage succinct, compact, proportional space layout.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is along A-A cutaway view in figure.
Fig. 3 be in figure along B to view (enlarged drawing), be the schematic diagram of middle part float support structure in the utility model.
Fig. 4 is the first push rod in Fig. 3, the second push rod and the 3rd push rod layout drawing (enlarged drawing) on connecting plate.
The horizontal structure chart of umbrella shape Chi Fenzhong mechanism in Fig. 5 the utility model.
Fig. 6 is the structure chart of hydraulic strip clamp.
The specific embodiment
Shown in Fig. 1-Fig. 5, further describe the utility model as follows: a kind of mesochite divides middle special fixture, comprises clamp bottom board, and concrete structure is as follows:
(1) on clamp bottom board 1, take center reference point is foundation, be provided with longitudinal umbrella shape Chi Fenzhong mechanism 14 and 2 horizontal umbrella shape Chi Fenzhong mechanisms 2,2 horizontal umbrella shape Chi Fenzhong mechanisms 2 are symmetrical, and 2 horizontal umbrella shape Chi Fenzhong mechanisms 2 are positioned on longitudinal umbrella shape Chi Fenzhong mechanism 14 in short transverse;
(1.1) structure of described horizontal umbrella shape Chi Fenzhong mechanism 2:
(1.1.1) comprise a minute middle body 203, in minute, body bilateral symmetry arranges the left pilot hole 204 of tape guide cover, the right pilot hole 209 of tape guide cover, and in dividing, the center of body has installation cavity; In left pilot hole, right pilot hole, be sliding combined with respectively left push rod 202, right push rod 208, top 201 is all equipped with in the outer end of left push rod 202 and right push rod 208;
(1.1.2) in installation cavity, bilateral symmetry setting is provided with left sector tooth block 213, right sector tooth block 207, the centre bore of left sector tooth block 213 and right sector tooth block 207 (respectively by the first bearing pin 205, the second bearing pin 210) is hinged on minute middle body 203, the outer end of left push rod 202 and right push rod 208 is all provided with tooth bar, the tooth bar engagement of left sector tooth block 213 and right sector tooth block 207 correspondences;
(1.1.3) in dividing, the bottom of body is fixed with cylinder installation seat 214, one drives oil cylinder 212 to be upwards arranged on cylinder installation seat 214, on the piston rod of driving oil cylinder, be fixed with pull bar 211, on left sector tooth block and right sector tooth block, be inwardly extended with linking arm, the linking arm of the linking arm of left sector tooth block 213 and right sector tooth block 207 is hinged on pull bar 211 by bearing pin 206; Drive oil cylinder 212 to drive pull bar 211, pull bar 211 drives left sector tooth block 213 and right sector tooth block 207 to swing, and makes left push rod 202 and right push rod 208 do symmetrical inside contracting or overhanging rectilinear motion;
(1.2) longitudinally the structure of umbrella shape Chi Fenzhong mechanism 14 is identical with the structure of horizontal umbrella shape Chi Fenzhong mechanism 2, is that dimensional parameters is different;
(2) directed guide colume type structure in the middle of: the center reference point of take on clamp bottom board 1 is foundation, is fixed with central shaft 8, and the top of central shaft 8 is fixed with gripper shoe 9, and the center of gripper shoe 9 is provided with supporting member 7; Described supporting member 7 is topmost a bulb, to form some contact location;
(3) middle part float support structure: on central shaft, be set with center assembly, between the upper end of center assembly and gripper shoe, be provided with extension spring device 401, make center assembly with respect to central axis in elasticity suspended state;
(3.1) structure of described center assembly:
(3.1.1) center 402 is slidably matched on central shaft 8, between center 402 and central shaft 8, is provided with feather key 405, and center 402 can only be moved up and down along central shaft; The upper end of extension spring device 401 is connected with gripper shoe 9, and the lower end of extension spring device 401 is connected to center upper end;
(3.1.2) lower end of center is fixed with connecting plate 407, is distributed with first piece 403, second piece 409, the 3rd piece 410 on connecting plate 407;
(3.1.3) first piece 403 syndeton on connecting plate: be fixed with bearing 408 on connecting plate 407, bearing 408 stretches out and is provided with installing hole, a connecting axle 406 rolls to coordinate by installing hole and is supported on bearing 408, and first piece 403 is fixed by screws in the outer end of connecting axle 406; At bearing 408, be provided with elastic steel ball positioner 404, the steel ball of elastic steel ball positioner 404 withstands in the arc groove of connecting axle 406;
(3.1.4) second piece 409 and the syndeton of the 3rd piece 410 on connecting plate are identical with first piece 403;
(3.1.5) setting of elastic steel ball positioner, makes the described connecting axle can be in circumferencial direction minor rotation, to compensate first piece, second piece and the 3rd piece height error each other;
(4) be positioned at center assembly peripheral, on clamp bottom board, be fixed with 4 the first float support oil cylinders 13, with 4 the first float support oil cylinders corresponding hydraulic strip clamp 12 that is provided with one by one.
As shown in Figure 1, in described gripper shoe, be uniformly distributed along the circumference and be fixed with 4 the second float support oil cylinders 5, can better withstand workpiece, further improve strength and stiffness, prevent from when processed being subject to cutting force and being out of shape.
As shown in Figure 1, the both sides correspondence of clamp bottom board is provided with left column 3, right column 11, the upper end of left column and the upper end of right column are fixed with respectively 2 the 3rd float support oil cylinders 10, the 3rd float support oil cylinder 10 can withstand workpiece from periphery, further improve strength and stiffness, prevent from when processed being subject to cutting force and being out of shape.
What as shown in Figure 1, label 6 was expressed is workpiece.
In the utility model, the first float support oil cylinder, the second float support oil cylinder and the 3rd float support oil cylinder are all the float support oil cylinders of standard, only in order to distinguish, and the definition of carrying out.
Hydraulic strip clamp essence described in the utility model is the press plate mechanism that a hydraulic jack drives, and concerning person skilled in art, is known technology, can realize easily; As shown in Figure 5, a kind of concrete structure of hydraulic strip clamp is described: comprise a mount pad 1304, hydraulic jack 1305 be fixed on mount pad 1304 below, the piston rod of hydraulic jack 1305 stretches out above mount pad 1304, the medium position of pressing plate 1301 is hinged with a swing arm 1302, and the piston rod of the lower end of swing arm 1302 and hydraulic jack 1305 is hinged; The head position of pressing plate 1301 is clamping points, and the tail position of pressing plate 1301 is hinged on mount pad 1304 by bearing 1303.
Described extension spring device 401 is comprised of four extension springs.
Described elastic steel ball positioner 404 is known technologies, and structure is: steel ball, spring, plug are linked in sequence.
The installation process of workpiece on the utility model: during use, top by work piece hoisting to fixture, slowly put into fixture downwards, adopt middle directed guide colume type structure to realize inner chamber a bit spacing, middle part float support structure realizes the location of floating, middle part, and umbrella shape tooth divides centering, then the startup first float support oil cylinder corresponding with hydraulic strip clamp in not contour 6 o'clock minute of middle winding machine inner chamber, realize self-locking support, restart hydraulic strip clamp and compress; Finally start remaining other float support oil cylinder, realize the supplemental support to workpiece.
Claims (3)
1. mesochite divides a middle special fixture, comprises clamp bottom board, it is characterized in that:
(1) on clamp bottom board, take center reference point is foundation, be provided with longitudinal umbrella shape Chi Fenzhong mechanism and 2 horizontal umbrella shape Chi Fenzhong mechanisms, 2 horizontal umbrella shape Chi Fenzhong mechanisms are symmetrical, and 2 horizontal umbrella shape Chi Fenzhong mechanisms are positioned on longitudinal umbrella shape Chi Fenzhong mechanism in short transverse;
(1.1) structure of described horizontal umbrella shape Chi Fenzhong mechanism:
(1.1.1) comprise a minute middle body, in minute, body bilateral symmetry arranges the left pilot hole of tape guide cover, the right pilot hole of tape guide cover, and in dividing, the center of body has installation cavity; In left pilot hole, right pilot hole, be sliding combined with respectively left push rod, right push rod, top is all equipped with in the outer end of left push rod and right push rod;
(1.1.2) in installation cavity, bilateral symmetry setting is provided with left sector tooth block, right sector tooth block, the centre bore of left sector tooth block and right sector tooth block is hinged on minute middle body, the outer end of left push rod and right push rod is all provided with tooth bar, the tooth bar engagement that left sector tooth block and right sector tooth block are corresponding;
(1.1.3) in dividing, the bottom of body is fixed with cylinder installation seat, one drives oil cylinder to be upwards arranged on cylinder installation seat, on the piston rod of driving oil cylinder, be fixed with pull bar, on left sector tooth block and right sector tooth block, be inwardly extended with linking arm, the linking arm of left sector tooth block and the linking arm of right sector tooth block are hinged on pull bar by bearing pin; Drive hydraulic oil cylinder driving pull bar, pull bar drives left sector tooth block and right sector tooth block to swing, and makes left push rod and right push rod do symmetrical inside contracting or overhanging rectilinear motion;
(1.2) longitudinally the structure of umbrella shape Chi Fenzhong mechanism is identical with the structure of horizontal umbrella shape Chi Fenzhong mechanism, is that dimensional parameters is different;
(2) directed guide colume type structure in the middle of: the center reference point of take on clamp bottom board is foundation, is fixed with central shaft, and the top of central shaft is fixed with gripper shoe, and the center of gripper shoe is provided with supporting member;
(3) middle part float support structure: on central shaft, be set with center assembly, between the upper end of center assembly and gripper shoe, be provided with extension spring device, make center assembly with respect to central axis in elasticity suspended state;
(3.1) structure of described center assembly:
(3.1.1) center is slidably matched on central shaft, between center and central shaft, is provided with feather key, and center can only be moved up and down along central shaft; The upper end of extension spring device is connected with gripper shoe, and the lower end of extension spring device is connected to center upper end;
(3.1.2) lower end of center is fixed with connecting plate, is distributed with first piece, second piece, the 3rd piece on connecting plate;
(3.1.3) first piece syndeton on connecting plate: be fixed with bearing on connecting plate, bearing stretches out and is provided with installing hole, a connecting axle rolls to coordinate by installing hole and is supported on bearing, and first piece is fixed by screws in the outer end of connecting axle; At bearing, be provided with elastic steel ball positioner, the steel ball of elastic steel ball positioner withstands in the arc groove of connecting axle;
(3.1.4) second piece and the syndeton of the 3rd piece on connecting plate are identical with first piece;
(3.1.5) setting of elastic steel ball positioner, makes the described connecting axle can be in circumferencial direction minor rotation, to compensate first piece, second piece and the 3rd piece height error each other;
(4) be positioned at center assembly peripheral, on clamp bottom board, be fixed with 4 the first float support oil cylinders, with 4 the first float support oil cylinders corresponding hydraulic strip clamp that is provided with one by one.
2. a kind of mesochite divides middle special fixture according to claim 1, it is characterized in that: in gripper shoe, be uniformly distributed along the circumference and be fixed with 4 the second float support oil cylinders.
3. according to a kind of mesochite described in claim 1 or 2, divide middle special fixture, the both sides correspondence of clamp bottom board is provided with left column, right column, and the upper end of left column and the upper end of right column are fixed with respectively 2 the 3rd float support oil cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341994.9U CN203936665U (en) | 2014-06-25 | 2014-06-25 | A kind of mesochite divides middle special fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341994.9U CN203936665U (en) | 2014-06-25 | 2014-06-25 | A kind of mesochite divides middle special fixture |
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| Publication Number | Publication Date |
|---|---|
| CN203936665U true CN203936665U (en) | 2014-11-12 |
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| CN201420341994.9U Withdrawn - After Issue CN203936665U (en) | 2014-06-25 | 2014-06-25 | A kind of mesochite divides middle special fixture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057322A (en) * | 2014-06-25 | 2014-09-24 | 十堰合骏实业有限公司 | Special fixture for centering mesochite |
-
2014
- 2014-06-25 CN CN201420341994.9U patent/CN203936665U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057322A (en) * | 2014-06-25 | 2014-09-24 | 十堰合骏实业有限公司 | Special fixture for centering mesochite |
| CN104057322B (en) * | 2014-06-25 | 2016-04-06 | 十堰合骏实业有限公司 | A kind of mesochite divides middle special fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20160406 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |