TWM546274U - Two-part form positioning device of tapping machine - Google Patents

Description

Two-stage positioning device for tapping machine

The present invention relates to a tapping machine, and more particularly to a component positioning device for a tapping machine.

When the nut part is tapping, the nut part to be tapped is usually transferred to the tapping machine via the blanking machine, and the nut part is clamped by the tapping machine with the clamp mechanism, and then the tapping part is attacked. tooth. However, when the blanking machine feeds the nut parts to the tapping machine, the falling nut parts usually do not fall on the tapping machine very well, so when the clamp mechanism clamps the nut parts, it is clamped. The nut parts of the dwelling may be different from the axis of the tapping workpiece. The phenomenon that the nut parts are skewed may seriously affect the quality of the nut produced by the processing.

Although some tapping machines are designed with a structural design that pushes the skewed nut parts, in order to prevent the nut parts to be tapped from falling off, the mechanical parts are fixed in the clamp mechanism after the clamps are fixed. In order to carry out the pushing and guiding operation, when the clamp mechanism clamps and fixes the nut part, the clamping force of the clamp mechanism is quite large, so if the nut part clamped by the clamp mechanism is pushed up, the larger one is applied. Mechanical force, and it is easy to cause the nut parts to be worn by the fixture.

Accordingly, it is an object of the present invention to provide a two-stage positioning device for a tapping machine that improves at least one of the disadvantages of the prior art.

Therefore, the two-stage positioning device of the new tapping machine can clamp a nut part to be processed. The two-stage positioning device comprises a base, a clamp mechanism, and a clamping drive mechanism. The clamp mechanism comprises two clamp units mounted on the base at a distance from left and right and capable of being driven to clamp the nut parts, and two telescopic rod units respectively mounted on the clamp units, each of the telescopic rod units including a a pusher arm pivotally disposed on each of the clamp units, a push-pull shaft that can be inserted and socketed to the push-pull arm relative to the front and rear telescopic displacement, and a spacer mounted on the thrust shaft and spaced apart from the push-pull arm a rear pressing member and a spring mounted between the pushing arm and the abutting shaft. The clamping drive mechanism is mounted between the base and the telescopic rod unit, and is capable of driving the thrust shafts to be forwardly retracted relative to the thrust arms to drive the clamp units to be released by the one The release state of the nut part is changed to a half-clamped state in which the nut parts are elastically clamped to each other, and a forced state in which the nut parts are clamped to each other. When the clamping units are in the half-clamping state, the pressing shafts respectively drive the springs to respectively elastically push the pushing arms respectively, when the clamping units are in the pressing state, The thrust shaft is driven to push the pressing members forwardly to push the pushing arms respectively.

The utility model has the following advantages: the transmission structure design of the telescopic rod units installed between the clamp unit and the clamping drive mechanism enables the clamp units to be driven and clamped when the nut parts are clamped The change between the half-clamping state and the tightening state of the firm clamping facilitates the topping operation of the nut parts of the skewed portion in the half-clamping state, and can greatly reduce the nut parts and the like fixtures that are pushed forward. The degree of wear between the bodies, while relatively improving the quality of the nut processing.

Referring to Figures 1, 2 and 3, an embodiment of the two-stage positioning device of the new tapping machine is suitable for use with a blanking machine 800 for conveying a nut part 900 to be tapped. A nut part 900 released by the hopper 800 is clamped for a tapping member (not shown) for tapping. The two-stage positioning device comprises a base 3, a clamp mechanism 4 mounted on the base 3, a clamping drive mechanism 5 mounted on the base 3 and drivingly coupled to the clamp mechanism 4, and a clamping mechanism Mounted on the base 3 and used to push the top mechanism 6 of the nut part 900 to be processed which is clamped by the clamp mechanism 4.

The base 3 has a seat portion 31 and two stopper portions 32 that extend left and right and are spaced apart from each other on the side of the top surface of the seat portion 31.

The clamp mechanism 4 is mounted on the seat body portion 31 and is drivable by the clamp drive mechanism 5 to release the nut member 900 in a released state, and a half clamped to the left and right elastically clamps the nut member 900. The state, and a change between the tightening state of the nut member 900 that is firmly clamped to the left and right.

The clamp mechanism 4 includes two clamp units 41 that are laterally spaced apart from the top surface of the base portion 31 and are respectively located at the rear sides of the stop portions 32, and two front and rear extensions are respectively pivotally mounted on the clamp units 41 and The telescopic rod unit 45 is clamped between the drive mechanisms 5.

Referring to Figures 2, 4 and 5, since the clamp unit 41 and the telescopic rod unit 45 are bilaterally symmetrically mounted to the base 3, for convenience of explanation, only the clamp unit 41 of the right half of Fig. 5 will be described below. The configuration of the telescopic rod unit 45 is taken as an example to describe the structure of the clamp mechanism 4.

The clamp unit 41 has a clamp body 42 that is movably mounted to the base 3 and is pivotally mounted on the base 3 to be pivoted horizontally against the same side. The arm 43 is pivotally connected to the clamp body 42 and the transmission arm 44 between the swing arm 43 and the telescopic rod unit 45. The swing arm 43 has a first end portion 431 pivotally disposed on the base 3 and a second end portion 432 extending obliquely rearwardly to the left. The swing arm 43 pivots forwardly against the stop portion 32. When the limit is reached, it is left and right.

The driving arm 44 is substantially L-shaped and has a turning portion 441 pivotally connected to the second end portion 432 of the swing arm 43. One of the turning portions 441 obliquely extends from the turning portion 441 to the left and is pivotally connected to the clamp. a first transmission end portion 442 at a right end of the main body 42 and a second portion obliquely extending from the turning portion 441 to the left and pivoted to the front end portion of the telescopic rod unit 45 at a certain angle with the first transmission end portion 442 Drive end 443.

The transmission arm 44 can be pivoted forward by the telescopic rod unit 45, and the second end portion 432 of the swing arm 43 is forwardly swinged to the respective stopping portion 32 to extend left and right. The first transmission end portion 442 of the transmission arm 44 is also pivoted relative to the clamp body 42 to extend coaxially with the swing arm 43. The second transmission end portion 443 is pivoted and telescoped. The rod unit 45 is coaxially extended before and after. The swing arm 43 pivoted forwardly and leftwardly moves the drive arm 44 to the left, so that the first drive end portion 442, which is also pivoted to the left and right, is pushed to the left by the clamp body 42.

The telescopic rod unit 45 includes a pushing arm 46 pivotally horizontally pivotally connected to the second driving end portion 443 of the driving arm 44 at a front end thereof, and a top end of the pushing arm 46 is mounted on the rear end of the pushing arm 46. a protective sleeve 40 projecting coaxially rearwardly, an abutting shaft 47 that can be inserted through the protective sleeve 40 and inserted into the thrust arm 46, and can be slid back and forth The urging shaft 47 is externally and rotatably coupled to the limiting member 49 mounted in the protective sleeve 40, and is mounted in the ejector arm 46 and can be pushed by the urging shaft 47 The front elastic pushes the compression spring 48.

The jacking arm 46 has a mounting space 460 that communicates openly toward the protective sleeve 40. The spring 48 is resiliently compressively mounted in the mounting space 460.

The urging shaft 47 has a shaft portion 471 which is inserted through the protective sleeve forwardly and forwardly and inserted into the installation space 460 and elastically abuts against the spring 48, and a radial outward expansion An abutting section 472 disposed at a rear end of the shaft section 471 and located in the protective sleeve 40 and spaced behind the pushing arm 46, and a protective sleeve protruding coaxially from the abutting section 472 The pivoting section 473 of the clamping drive mechanism 5 is pivotally pivoted to the left and right. The urging shaft 47 can be driven by the clamping drive mechanism 5 to be forwardly retracted relative to the ejector arm 46, and the spring portion 48 is elastically pushed forward by the shaft 471, thereby indirectly flexing forward. The jacking arm 46 is pushed, and then the jacking section 472 is directly forwardly abutted against the rear end of the jacking arm 46, and the jacking arm 46 is directly pushed forward.

The limiting member 49 is screwed on the inner circumferential surface of the protective sleeve 40, and the supporting portion 47 of the abutting shaft 47 is moved backward to the limit position, and can be rotated relative to the protective sleeve 40. The positioning is adjusted forward and backward, and the distance between the abutting section 472 and the abutting section 472 is relatively adjusted, thereby adjusting the stroke distance at which the abutting shaft 47 is driven to move backward.

Referring to Figures 5, 6, and 8, the clamping drive mechanism 5 is mounted behind the base 3 and includes a clamping driver 51 fixed to the base 3, and a rear mounting portion of the clamping driver 51 extending left and right. The linkage 52 of the pivoting sections 473 of the abutment shafts 47 is bridged. In this embodiment, the clamping driver 51 is a pneumatic cylinder having two left and right intervals and protruding rearwardly connected to the cylinder shaft 511 of the linking member 52. The clamping driver 51 can drive the cylinder shafts 511 to flex forward and backward. Displacement, and the linkage 52 is driven to synchronously drive the abutment shaft 47 to move back and forth. Since the type of equipment capable of driving the linkage member 52 to drive the abutment shaft 47 to move forward and backward is numerous, the clamp driver 51 is not limited to the pneumatic cylinder.

The top mechanism 6 includes a top positive drive 61 mounted behind the base 3, and a punch 62 mounted to the top positive drive 61 and movably disposed on the base 3. In this embodiment, the top positive drive 61 is a pneumatic cylinder having a cylinder shaft 611 protrudingly coupled to the punch rod 62, which can drive the cylinder shaft 611 to extend forward and backward to drive the punch rod 62 forward. Abut against the rear side of the clamp body 42. Since the type of equipment capable of driving the punch rod 62 to be displaced back and forth is numerous, the top positive drive 61 is not limited to the pneumatic cylinder when implemented.

Referring to Figures 1, 2 and 5, the two-stage positioning device of the new tapping machine is used to control the clamping drive mechanism 5 to drive the telescopic rod units 45 to move backward, and to drive the clamp unit 41. The clamp body 42 is moved away from the left and right, and the clamp mechanism 4 is changed to the released state to receive the nut portion 900 dropped from the blanker 800.

Referring to Figures 3, 5 and 6, when the blanker 800 releases a nut member 900 between the clamp bodies 42, the clamping drive mechanism 5 is controlled to drive the telescopic rod units 45 relative to the base 3 shift. During the forward movement of the telescopic rod unit 45, the urging shafts 47 are partially retracted into the ejector arms 46, respectively, and are elastically pushed forward by the urging mechanism. In the manner of 48, the push arms 46 are elastically pushed forward indirectly, that is, the front and rear telescopic springs of the springs 48 are used to drive the push arms 46 to drive the drive arms 44 in synchronization, and gradually drive. The clamp body 42 is displaced to the left and right, and when the swing arms 43 are respectively forwardly biased against the stoppers 32, the clamp mechanism 4 has changed to the half clamp state (as shown in FIG. 6). Show).

Referring to Figures 6, 7, and 8, when the clamp mechanism 4 is in the half-clamped state, the force of the clamp body 42 to the right and left of the nut member 900 mainly comes from the elastic force of the springs 48, so The clamp body 42 does not securely clamp the nut member 900, and the clamp body 42 can also be driven to produce a left and right elastic displacement. At this time, the top mechanism 6 is activated, and the top positive drive 61 drives the punch 62 to advance relative to the base 3 and abuts against the rear side of the clamp body 42 forward. When the nut portion 900 of the clamp body 42 is misaligned front and rear, the punch rod 62 can tilt the nut portion 900 protruding outwardly from the clamp body 42 forward, and because When the jig body 42 is elastically clamped against the nut member 900, the nut portion 900 can be easily aligned when the degree of wear between the nut member 900 and the jig body 42 is greatly reduced.

When the top mechanism 6 tops the nut part 900 and abuts against the clamp body 42 and the rear side of the nut part 900, the clamping drive mechanism 5 is controlled to continue to move the telescopic rod unit forward. 45. Since the swing arms 43 are respectively restrained against the stop portions 32, the push arms 46 can no longer move forward, and the thrust shafts 47 are elastically compressed forward respectively. The spring 48 continues to be retracted into the pusher arms 46, and is further restrained by the abutment segments 472, respectively, leaning against the rear ends of the pusher arms 46. At this time, the pushing arms 46 can not be elastically displaced rearward due to the pushing of the abutting sections 472, so that the clamp mechanism 4 changes to the pressing state of tightening the nut parts 900, that is, It is said that the nut part 900 can no longer be displaced or pivoted relative to the clamp body 42. Then, the nut portion 900 can be tapped later by the tapping member.

Referring to FIGS. 5 and 8, after the tapping operation is completed, the clamping drive mechanism 5 is controlled to drive the telescopic rod units 45 to move back and reset, thereby interlocking the transmission arms 44 to move backward and pivot to drive the clamps. The body 42 is displaced back and forth to release the processed nut part 900, at which time the clamp mechanism 4 has been reset to the released state.

Through the telescopic rod unit 45, the two-stage transmission of the clamp unit 41 can clamp the structural design of the nut part 900, so that the top mechanism 6 can elastically clamp the nut part 900 to the clamp unit 41. In the half-clamping state, the nut part 900 of the front and rear skew is subjected to the top-right processing, and the nut part 900 is not detached during the top-aligning process, and the nut part 900 and the jig can be greatly reduced. The degree of wear between the bodies 42 can greatly improve the production quality of the nut.

In the present embodiment, the springs 48 are respectively disposed in the pushing arms 46 and can be elastically compressed forward by the abutting shafts 47, respectively, and the pushing arms 46 are elastically moved before, but In other embodiments of the present invention, the mounting manner of the springs 48 is not limited thereto. For example, the springs 48 can also be designed to be respectively sleeved outside the pushing arms 46, and can be respectively moved forward relative to each other. The urging shaft 47 is elastically pressed or stretched forward, so that the urging shaft 47 and the ejector arm 46 can be elastically stretched and displaced forward and backward.

In addition, in this embodiment, each of the clamp units 41 is pivotally disposed on the base 3 with the first end 431 of the swing arm 43 and pivots the transmission arm 44 to The clamp body 42, the second end portion 432 of the swing arm 43 and the respective push arm 46 enable the drive crank arm 44 to be pivoted forward by the respective push arm 46, and the transmission is transmitted. The swing arm 43 is pivoted to extend left and right, and then the clamp body 42 is driven to the nut portion 900 to be clamped. However, in another embodiment of the present invention, the first end portion 431 of the swing arm 43 of the clamp unit 41 can be pivotally connected to the clamp body 42 and the second end portion 432 can be inclined. After the extension, the first transmission end portion 442 of the transmission arm 44 is pivotally disposed on the base 3, and the turning portion 441 is pivotally connected to the second end portion 432 of the swing arm 43, and the The second driving end portion 443 is pivotally connected to the pushing arm 46. The structural design can also utilize the telescopic rod unit 45 to drive the clamping body 42 of the clamping unit 41 to produce the function of clamping the nut member 900. . In addition, when implemented, the structure of the clamp unit 41 is not limited to the manner in which the clamp body 42 is displaced to the right and left to clamp the nut member 900, and can be changed to be driven by the telescopic rod unit 45. The clamp body 42 is clamped to the nut part 900 in a manner of pivoting forward and backward.

In summary, through the structural design of the telescopic rod units 45 mounted between the clamp unit 41 and the clamp drive mechanism 5, the thrust shafts 47 can be indirectly passed through the springs 48. Elastically pushing the pusher arms 46 and the two-stage drive design that can directly push the pusher arms 46 forward so that when the clamp units 41 are driven to clamp the nut parts 900, In the half-clamping state in which the elastic clip is abutted, and the tightening state of the firm clamping, the topping mechanism 6 facilitates the topping operation of the skewed component 900 in the half-clamped state, and can The mechanical force required to push the nut member 900 forwardly tilted by the top mechanism 6 is greatly reduced, and the degree of wear between the pushed nut member 900 and the clamp body 42 is greatly reduced, and the nut processing is relatively improved. Quality is an innovative nut part 900 positioning design. Therefore, it is indeed possible to achieve the purpose of the present invention.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

3‧‧‧Base
31‧‧‧ body
32‧‧‧stops
4‧‧‧Clamping mechanism
41‧‧‧Clamp unit
42‧‧‧Clamp body
43‧‧‧ swing arm
431‧‧‧First end
432‧‧‧second end
44‧‧‧Transmission arm
441‧‧‧ turning section
442‧‧‧First transmission end
443‧‧‧Second drive end
45‧‧‧ Telescopic rod unit
46‧‧‧Top push arm
460‧‧‧ installation space
47‧‧‧Resist the shaft
471‧‧‧ shaft section
472‧‧‧Top section
473‧‧‧ pivotal section
48‧‧‧ Spring
49‧‧‧Limited parts
40‧‧‧protective casing
5‧‧‧Clamping drive mechanism
51‧‧‧Clamping drive
511‧‧‧Cylinder shaft
52‧‧‧ linkages
6‧‧‧ top body
61‧‧‧ top positive drive
611‧‧‧Cylinder shaft
62‧‧‧ rush bar
800‧‧‧Unloader
900‧‧‧ Nut parts

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is an embodiment of the two-stage positioning device of the novel tapping machine when used with a blanking machine Figure 2 is a perspective view of the embodiment in which the two stops of a base have been removed and illustrate a situation in which the clamp mechanism is in a released state; Figure 3 is a view similar to Figure 2, FIG. 4 is a side cross-sectional view of a telescopic rod unit of the embodiment; FIG. 5 is a partial cross-sectional plan view of the embodiment, and illustrating that the clamp mechanism is located at the release Figure 6 is a view similar to Figure 5 and illustrating the state in which the clamp mechanism is in a half-clamped state; Figure 7 is a front view of the embodiment and illustrates the clamp mechanism when clamping a nut member And FIG. 8 is a view similar to FIG. 6 and illustrates the case where the clamp mechanism is in a forced state.

3‧‧‧Base

31‧‧‧ body

32‧‧‧stops

4‧‧‧Clamping mechanism

41‧‧‧Clamp unit

42‧‧‧Clamp body

43‧‧‧ swing arm

431‧‧‧First end

471‧‧‧ shaft section

472‧‧‧screw segment

473‧‧‧ pivotal section

48‧‧‧ Spring

49‧‧‧forced parts

40‧‧‧protective casing

5‧‧‧Clamping drive mechanism

51‧‧‧Clamping drive

432‧‧‧second end

511‧‧‧Cylinder shaft

44‧‧‧Transmission arm

52‧‧‧ linkages

441‧‧‧ turning section

6‧‧‧ top body

442‧‧‧First transmission end

61‧‧‧ top positive drive

443‧‧‧Second drive end

611‧‧‧Cylinder shaft

45‧‧‧ Telescopic rod unit

62‧‧‧ rush bar

46‧‧‧Top push arm

900‧‧‧ Nut parts

47‧‧‧Resist the shaft

Claims (8)

A two-stage positioning device for a tapping machine, which can be used for clamping a nut part to be processed, and comprises: a base; a clamp mechanism comprising two left and right spacers mounted on the base and capable of being driven a clamp unit that clamps the nut part, and two telescopic rod units respectively mounted on the clamp unit, each telescopic rod unit includes a push arm that is pivotally disposed on each of the clamp units, and one can be extended relative to the front and rear Displaceably inserting and urging the urging shaft of the ejector arm, and a spring mounted between the ejector arm and the urging shaft; and a clamping drive mechanism mounted on the base and the same Between the telescopic rod units, the urging shafts can be driven to retract with respect to the ejector arms to drive the clamp units to actuate, so that the clamp mechanism is changed from a release state of the nut parts to a release state The left and right opposite phases elastically clamp the half-clamped state of the nut part, and a pressing state of clamping the nut parts to each other; and when the clamp mechanism is in the half-clamped state, the anti-pushing shaft is driven Separate springs The ejector arms are elastically pushed forward, and the clamp units elastically clamp the nut parts to the left and right, and when the clamp mechanism is in the urging state, the urging shafts are directly forwardly leaned forward The pusher arms are pushed against each other, and the clamp units clamp the nut parts to the left and right. The two-stage positioning device of the tapping machine according to claim 1, wherein each spring is installed in front and rear extension and positioned in each of the top push arms, and each of the push rods has a pivoting function a pivoting portion pivotally connected to the clamping drive mechanism and extending forwardly, and a shaft inserted forwardly in each of the top pushing arms to elastically displace the respective springs relative to the pushing arm a segment, and a radially outwardly expanding protrusion disposed at a rear end of the shaft segment and spaced apart from the abutting portion behind the thrust arm. When the clamp mechanism is in the half clamp state, the thrust shafts are respectively Elastically pushing the springs forwardly with the shaft segments, and driving the springs to elastically push the push arms forward respectively. When the clamp mechanism is in the pressing state, the thrust shafts are respectively The jacking arms are directly urged against each other by the abutting sections. The two-stage positioning device of the tapping machine according to claim 2, wherein each of the telescopic rod units further comprises a fixed one behind the respective push arm and a rearward extending sleeve placed on each of the push shafts. a protective sleeve outside the rod, and a limit stop that can be sleeved outside the pivotal section and can be screwed to the front and rear of the protective sleeve, and the toprest section is located in the protection The sleeve can be restrained against the protective sleeve and then moved against the limit stop. The two-stage positioning device of the tapping machine of claim 1, 2 or 3, wherein each of the clamp units has a clamp that is detachably mounted to the base and clamps the nut part a main body, a swing arm horizontally disposed on the base, and a transmission crank arm horizontally disposed between the swing arm and the clamp body and the push arm, the swing arm having a pivot setting at the base An end portion, and a second end portion extending obliquely rearward of the other clamp unit, the transmission crank arm is located between the clamp body and the swing arm, and has a second end portion pivotally connected to the swing arm a first driving end portion and a second driving end portion respectively protruding from the turning portion toward the clamping body and the pushing arm, and the first driving end portion is pivotally connected to the turning portion The clamp body is pivotally connected to the push arm. The two-stage positioning device of the tapping machine according to claim 4, wherein the base comprises a seat portion for mounting the clamp units, and two left and right spaced portions project upward from the seat portion. And a stopping portion on the front side of the swing arm, wherein the stopping portions can respectively position the swing arms of the clamp units located in the semi-clamping state and the pressing state respectively. The two-stage positioning device of the tapping machine of claim 1, wherein the clamping drive mechanism comprises a clamping driver fixed to the base, and one of the clamping drives is mounted to the clamping driver and can be clamped a linkage that is driven by the driver to be displaced forward and backward relative to the base, and the abutment shafts are pivotally connected to the linkage member at a rear end portion thereof, and can be pivotally driven by the linkage member, and can be driven by the linkage member. The top push arm is telescopically displaced. The two-stage positioning device of the tapping machine according to claim 1, further comprising a top positive mechanism mounted on the base, the top positive mechanism being activated to be pushed forward and clamped to the clamps The nut part between the units. The two-stage positioning device of the tapping machine of claim 7, wherein the top positive mechanism comprises a top positive drive fixed to the base, and a drive is coupled to the top positive drive and can be topped The driver is driven to move forward against the clamp unit to flatten the plunger of the nut portion.