CN203636606U - Clamping tool for accurate grinding of cam - Google Patents
Clamping tool for accurate grinding of cam Download PDFInfo
- Publication number
- CN203636606U CN203636606U CN201320723865.1U CN201320723865U CN203636606U CN 203636606 U CN203636606 U CN 203636606U CN 201320723865 U CN201320723865 U CN 201320723865U CN 203636606 U CN203636606 U CN 203636606U
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- clamping
- plate
- straightway
- clamping plate
- width
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Abstract
The utility model discloses a clamping tool for accurate grinding of a cam. A positioning screw penetrates through a screw through hole in the upper end part of a clamping plate; a front-rear through type clamping groove is formed in the middle lower part of the clamping plate and comprises an upper straight line section, a middle round section and a lower straight line section; a positioning plate adopts a C-shaped structure, the rear plate surface of the positioning plate fits the front plate surface of the clamping plate, and the positioning plate is fixedly connected with the clamping plate through a connecting pin; a positioning pin is arranged in the middle round section of the clamping groove and above a yielding gap of the positioning plate, the front end of the positioning pin is vertically fixed with the positioning plate, and the rear end of the positioning pin is suspended. According to the clamping tool, a workpiece can be simply and conveniently positioned and clamped and can be satisfactorily prevented from rotating, so that the circumferential positioning precision and the circumferential processing precision of the workpiece can be guaranteed. The clamping tool is simple, convenient and effort-saving in clamping, excellently overcomes the defects of a conventional structure, and is very high in practicality.
Description
Technical field
The utility model belongs to frock clamp field, specifically, relates in particular to a kind of cam fine grinding clamping tool.
Background technology
Cam is that one is used mechanical part widely, and the cylindrical of this cam need to refine.At present, generally first by a positioning tool, cam (being the workpiece G shown in Fig. 1,2) is had good positioning, then embrace and press from both sides the clamping by workpiece G by one, then refine.
The defect of existing clamping mode is: embrace and press from both sides while holding workpiece G tightly, workpiece G easily rotates, and so just can not circumferentially locate workpiece G well, thereby cannot ensure machining accuracy.In addition, realized location and clamped by two frocks, clamping inefficiency is badly in need of solving an above-mentioned difficult problem for this reason.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of cam fine grinding clamping tool, and wish ensures the circumferential positioning precision of workpiece, and improves clamping efficiency simultaneously.
The technical solution of the utility model is as follows: a kind of cam fine grinding clamping tool, it is characterized in that: comprise clamping plate (1), location-plate (5) and alignment pin (7), wherein the width of clamping plate (1) upper end is less than the width on top, the width on this clamping plate (1) top is less than the width at its middle part, and middle part is rounded portions, and the width of clamping plate (1) bottom is also less than the width at this clamping plate middle part; Described clamping plate (1) upper end has about one the screw via hole connecting, and is equipped with a dog screw (2) in this screw via hole;
The clamping slot (3) that described clamping plate (1) middle and lower part connects before and after having one, this clamping slot is made up of upper straightway (3a), middle circle section (3b) and lower straightway (3c), the lower end of wherein going up straightway (3a) is connected with described lower straightway (3c) upper end by middle circle section (3b), open to the bottom surface of clamping plate (1) lower end of this lower straightway, and this center line of three sections is on same straight line; The width of described upper straightway (3a) and lower straightway (3c) equates, and be 2-5mm, and described middle circle section (3b) is located at the middle part of clamping plate (1), the radius of this middle circle section (3b) is 10-15mm; The upper correspondence of clamping plate (1) on described lower straightway (3c) both sides has bolt mounting holes, and the clamping screw (4) for clamping slot (3) is locked is housed in this bolt mounting holes;
Described location-plate (5) is " C " font structure, and there is the breach of stepping down (5a), this breach of stepping down is positioned at the middle circle section (3b) of clamping slot (3) to be located, and its size is less than this middle circle section (3b); The rear plate face of described location-plate (5) and the laminating of clamping plate (1) front face, this two boards is fixedly linked by connecting pin (6); The number of described alignment pin (7) is one, this alignment pin is arranged in the middle circle section (3b) of described clamping slot (3), and be positioned at above stepping down of location-plate (5) scarce (5a), and the front end of alignment pin (7) is vertical with location-plate (5) fixing, and the rear end of alignment pin (7) is unsettled.
Clamping work pieces (G) before, is first fixed on clamping plate (1) on the locating piece of grinding machine by described dog screw (2).When clamping work pieces (G), first the axle journal of workpiece (G) is inserted in the middle circle section (3b) of described clamping slot (3), and above-mentioned alignment pin (7) is inserted in the locating hole on workpiece (G), finally, by tightening described clamping screw (4) by clamping slot (3) locking, so just workpiece (G) can be located, clamp.
Adopt above technical scheme, the utility model can be simply and easily by workpiece (G) location, clamping, and can prevent well that workpiece (G) from rotating, so just can ensure the circumferential positioning precision of workpiece (G), thereby ensure circumferential machining accuracy, and it is simple, convenient, laborsaving that the utility model clamps, overcome well the defect of traditional structure, there is very strong practicality.
In this case, the number of described connecting pin (6) is three, pin-and-hole tight fit on the front end of these three connecting pins (6) and described location-plate (5), and pin-and-hole tight fit on the rear end of three connecting pins (6) and described clamping plate (1).
The number of described connecting pin (6) is moderate, can ensure to connect reliably, is unlikely to again to make manufacturing cost too high because use too much bolt.
As preferably, the width of described upper straightway (3a) is 4mm, and on this, the length of straightway is 4-8mm, and the length of described lower straightway (3c) is 10-15mm, and the radius of described middle circle section (3b) is 14mm.
Adopt above structure, should be out of shape well, prevent from again causing because deformation performance is excessive structural strength inadequate, and then cause clamping plate (1) fracture.
For the ease of manufacturing, described clamping slot (3) forms by line cutting.
Beneficial effect: the utility model can be simply and easily by workpiece (G) location, clamping, and can prevent well that workpiece (G) from rotating, so just can ensure the circumferential positioning precision of workpiece (G), thereby ensure circumferential machining accuracy, and it is simple, convenient, laborsaving that the utility model clamps, overcome well the defect of traditional structure, there is very strong practicality.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of clamping plate 1 in Fig. 1,2.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1,2 and 3, a kind of cam fine grinding clamping tool, is mainly made up of clamping plate 1, dog screw 2, clamping screw 4, location-plate 5, connecting pin 6 and alignment pin 7.Wherein, the width of described clamping plate 1 upper end is less than the width on top, and the width on this clamping plate 1 top is less than the width at its middle part, and middle part is rounded portions, and the width of clamping plate 1 bottom is also less than the width at this clamping plate middle part.Described clamping plate 1 upper end has about one the screw via hole connecting, and is equipped with a dog screw 2 in this screw via hole, and clamping plate 1 is connected with the locating piece of grinding machine by this dog screw 2.
The clamping slot 3 that described clamping plate 1 middle and lower part connects before and after having one, this clamping slot 3 forms by line cutting, and is made up of upper straightway 3a, middle circle section 3b and lower straightway 3c.Wherein, the lower end of described upper straightway 3a is connected with lower straightway 3c upper end by middle circle section 3b, and open to the bottom surface of clamping plate 1 lower end of this lower straightway 3c, and this center line of three sections is on same straight line.Meanwhile, the width of described upper straightway 3a and lower straightway 3c equates, and is 2-5mm, and 4mm more preferably, and the length of upper straightway is 4-8mm, and the length of described lower straightway 3c is 10-15mm.And described middle circle section 3b is located at the middle part of clamping plate 1, the radius of this middle circle section 3b is 10-15mm, and 14mm more preferably.On the clamping plate 1 on described lower straightway 3c both sides, correspondence has bolt mounting holes, and the clamping screw 4 for clamping slot 3 is locked is housed in this bolt mounting holes.
As shown in Figure 1,2 and 3, described location-plate 5 is " C " font structure, and has the breach 5a that steps down, and this breach 5a that steps down is positioned at the middle circle section 3b place of clamping slot 3, and its size is less than this middle circle section 3b.Meanwhile, the rear plate face of described location-plate 5 and clamping plate 1 front face laminating, this two boards is fixedly linked by connecting pin 6.As preferably, the number of described connecting pin 6 is three, the pin-and-hole tight fit on the front end of these three connecting pins 6 and described location-plate 5, and pin-and-hole tight fit on the rear end of three connecting pins 6 and described clamping plate 1.
The number of described alignment pin 7 is one, and this alignment pin 7 is arranged in the middle circle section 3b of described clamping slot 3, and is positioned at the breach 5a top of stepping down of location-plate 5, and the front end of alignment pin 7 is vertical with location-plate 5 fixing, and the rear end of alignment pin 7 is unsettled.
The foregoing is only preferred embodiment of the present utility model; not taking the utility model as restriction; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a cam fine grinding clamping tool, it is characterized in that: comprise clamping plate (1), location-plate (5) and alignment pin (7), wherein the width of clamping plate (1) upper end is less than the width on top, the width on this clamping plate (1) top is less than the width at its middle part, and middle part is rounded portions, and the width of clamping plate (1) bottom is also less than the width at this clamping plate middle part; Described clamping plate (1) upper end has about one the screw via hole connecting, and is equipped with a dog screw (2) in this screw via hole;
The clamping slot (3) that described clamping plate (1) middle and lower part connects before and after having one, this clamping slot is made up of upper straightway (3a), middle circle section (3b) and lower straightway (3c), the lower end of wherein going up straightway (3a) is connected with described lower straightway (3c) upper end by middle circle section (3b), open to the bottom surface of clamping plate (1) lower end of this lower straightway, and this center line of three sections is on same straight line; The width of described upper straightway (3a) and lower straightway (3c) equates, and be 2-5mm, and described middle circle section (3b) is located at the middle part of clamping plate (1), the radius of this middle circle section (3b) is 10-15mm; The upper correspondence of clamping plate (1) on described lower straightway (3c) both sides has bolt mounting holes, and the clamping screw (4) for clamping slot (3) is locked is housed in this bolt mounting holes;
Described location-plate (5) is " C " font structure, and there is the breach of stepping down (5a), this breach of stepping down is positioned at the middle circle section (3b) of clamping slot (3) to be located, and its size is less than this middle circle section (3b); The rear plate face of described location-plate (5) and the laminating of clamping plate (1) front face, this two boards is fixedly linked by connecting pin (6); The number of described alignment pin (7) is one, this alignment pin is arranged in the middle circle section (3b) of described clamping slot (3), and be positioned at above the breach of stepping down (5a) of location-plate (5), and the front end of alignment pin (7) is vertical with location-plate (5) fixing, and the rear end of alignment pin (7) is unsettled.
2. cam fine grinding clamping tool according to claim 1, it is characterized in that: the number of described connecting pin (6) is three, pin-and-hole tight fit on the front end of these three connecting pins (6) and described location-plate (5), and pin-and-hole tight fit on the rear end of three connecting pins (6) and described clamping plate (1).
3. cam fine grinding clamping tool according to claim 1 and 2, it is characterized in that: the width of described upper straightway (3a) is 4mm, on this, the length of straightway is 4-8mm, and the length of described lower straightway (3c) is 10-15mm, and the radius of described middle circle section (3b) is 14mm.
4. cam fine grinding clamping tool according to claim 3, is characterized in that: described clamping slot (3) forms by line cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723865.1U CN203636606U (en) | 2013-11-17 | 2013-11-17 | Clamping tool for accurate grinding of cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723865.1U CN203636606U (en) | 2013-11-17 | 2013-11-17 | Clamping tool for accurate grinding of cam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203636606U true CN203636606U (en) | 2014-06-11 |
Family
ID=50867884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320723865.1U Expired - Fee Related CN203636606U (en) | 2013-11-17 | 2013-11-17 | Clamping tool for accurate grinding of cam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203636606U (en) |
-
2013
- 2013-11-17 CN CN201320723865.1U patent/CN203636606U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141117 |
|
| EXPY | Termination of patent right or utility model |