TWM598758U - Center vise adjustment and positioning structure - Google Patents

Abstract

This creative department provides a center vise adjustment and positioning structure, which includes a main body, a first movable jaw, a second movable jaw, a lead screw, a positioning block and several positioning bolts. The first movable jaw and a The second movable jaws are arranged opposite to each other on the main body, and the lead screw is screwed to the first movable jaw and the second movable jaw respectively, so that the first movable jaw and the second movable jaw move relative to each other synchronously or reversely Far away, the positioning block is arranged in the guide groove, and the positioning block is penetrated with a number of perforations with long apertures, and each of the positioning bolts is screwed into each of the perforations from top to bottom, and is respectively screwed with the main body for positioning The lead screw. This creation can improve the convenience of adjusting and positioning the midpoint between the first movable jaw and the second movable jaw.

Description

Center vise adjustment and positioning structure

This creation department relates to a center vise, especially to an innovative structural type revealer of the adjustment and positioning structure of the center vise.

The center vise is a vise with a pair of movable jaws. The movable jaws are opposite to each other. A lead screw provided on the main body of the vise has two threaded sections, and the threaded direction of each threaded section is opposite. The thread segments are threaded through the movable jaws respectively, and by rotating the lead screw, the movable jaws can be driven to move or move away from each other synchronously. Each movable jaw can quickly clamp a workpiece or release quickly For the clamping of the workpiece, when the same processing procedure is repeated for multiple workpieces of the same specification, the center vise is used to clamp the workpiece, which can accelerate the positioning of the workpiece and quickly replace the workpiece of the same specification.

It is found that the conventional structure still has the following problems and shortcomings in the practical application experience: when each movable jaw does not clamp the workpiece, it is defined that each movable jaw has a virtual midpoint between each other, the midpoint It is the end of the stroke when the movable jaws are relatively moved. If the midpoint deviates from the center point of the vise main body, the maximum stroke of the movable jaws will be reduced when the movable jaws move away in the opposite direction, which will affect the movable jaws. The maximum size of the workpiece that can be clamped by the jaw. Therefore, when the center vise is produced and assembled, it is necessary to perform the adjustment and positioning of the midpoint. On the other hand, when the center vise is clamping the workpiece for processing, The force exerted by the tool on the workpiece and the vibration phenomenon that may occur during the machining process may cause the positioning of the lead screw to be offset, which will affect the relative clamping of the workpiece by the movable jaws, the workpiece and the tool The relative positioning affects the accuracy of the workpiece processing. According to this, the midpoint must be able to adjust its positioning in a timely manner. By adjusting the positioning of the lead screw on the vise main body, the midpoint can be achieved. Adjustment; however, when changing the positioning of the lead screw on the main body of the vise, the conventional central vise often needs to change the posture of the main body of the vise in space, for example, first release the main body of the vise on the machine table of the processing tool After the installation of the vise, turn the main body of the vise upside down to facilitate the release of the connection between the fixing block and the vise main body. After the adjustment is completed, the fixing block is reconnected to the vise main body, and then the vise is turned over again. The top surface of the main body of the vise faces up to facilitate the re-installation of the main body of the vise on the machine, and the turning operation of the vise main body should be careful to avoid falling or collision events, in order to prevent injury to personnel or machinery or cause The accidental event of damage to the center vise; in addition, the related structure of the adjustment and positioning of the lead screw of the conventional center vise is complicated, and there are many components, which leads to increased production and assembly costs and time-consuming assembly.

Therefore, in view of the problems of the above-mentioned learning center vise technology, how to develop an innovative structure that can be more ideal and practical is really awaiting the relevant industry to think about the goal and direction of breakthrough; in view of this, creation With many years of experience in manufacturing, development and design of related products, people based on the above goals, after detailed design and careful evaluation, finally got a practical book creation.

The main purpose of this creation is to provide a center vise adjustment and positioning structure. The technical problem to be solved is to think about how to develop a more ideal and practical new center vise adjustment and positioning structure. Innovation breakthrough.

Based on the foregoing objectives, the present invention provides a center vise adjustment and positioning structure, which includes:

A main body, the main body forms two side blocks upwards, the main body forms a guide groove between each of the side blocks, the guide groove extends at both ends of the main body, and the main body faces the middle part of the bottom side of the guide groove Several positioning screw holes are formed underneath;

A first movable jaw and a second movable jaw are opposite to each other, and the first movable jaw and the second movable jaw are respectively flexibly arranged in the guide groove;

A lead screw is arranged in the guide groove, the lead screw has a first thread section and a second thread section, the first thread section and the second thread section have opposite thread directions, and the lead screw is in the first thread At least one limiting part is formed between the second threaded section and the first threaded section. The first threaded section is threadedly connected to the first movable jaw, and the second threaded section is threadedly connected to the second movable jaw, so that the lead screw is driven The first movable jaw and the second movable jaw move relative to each other or move away from each other synchronously;

A positioning block is set in the guide groove, the positioning block is set in the part of the lead screw located at the limiting part, and the positioning block cooperates with each positioning screw hole to longitudinally pass through a plurality of perforations, and the perforation has a long aperture. Long hole, the long hole diameter of the hole is larger than the hole diameter of the positioning screw hole, and the diameter direction of the long hole diameter of the hole is parallel to the horizontal orthographic projection of the long axis direction of the lead screw, according to the positioning block and the hole Must move along the long axis of the lead screw; and

A number of positioning bolts, each positioning bolt is inserted into each hole from top to bottom, each positioning bolt is screwed to each positioning screw hole, and the positioning block is locked on the main body according to this, for positioning the guide Screw to position the first movable jaw and the second movable jaw.

The main effect and advantage of this creation is to improve the convenience of adjusting and positioning the midpoint between the first movable jaw and the second movable jaw.

Please refer to Figures 1 to 10, which are embodiments of the vise adjustment and positioning structure of the creative center. However, these embodiments are for illustrative purposes only and are not limited by this structure in the patent application.

As shown in Figures 1 to 3, the center vise adjustment and positioning structure includes a main body 10, a first movable jaw 20, a second movable jaw 30, a lead screw 40, a positioning block 50 and several positioning The bolt 60, wherein the main body 10 forms two side blocks 11 upward, the main body 10 forms a guide groove 12 between each of the side blocks 11, the guide groove 12 extends at both ends of the main body 10, and the main body 10 is connected to the guide The middle section of the bottom side of the groove 12 forms several positioning screw holes 13, the first movable jaw 20 and the second movable jaw 30 are opposite to each other, and the first movable jaw 20 and the second movable jaw 30 are movable respectively The first movable jaw 20 and the second movable jaw 30 respectively extend to the top edge of each side block 11, the lead screw 40 is arranged in the guide groove 12, and the lead screw 40 has a A first threaded section 41 and a second threaded section 42. The first threaded section 41 and the second threaded section 42 have opposite thread directions. The lead screw 40 is connected to the first threaded section 41 and the second threaded section 42. Two limiting portions 43 are formed therebetween. The first threaded section 41 is screwed to the first movable jaw 20, and the second threaded section 42 is screwed to the second movable jaw 30, so that the lead screw 40 drives the second movable jaw. A movable jaw 20 and a second movable jaw 30 move toward or away from each other synchronously. The positioning block 50 is arranged in the guide groove 12, and the positioning block 50 is arranged in the portion of the lead screw 40 at the limiting portion 43 The two ends of the positioning block 50 respectively abut each of the limiting portions 43, thereby positioning the lead screw 40 and the positioning block 50 relative to each other. The positioning block 50 cooperates with each of the positioning screw holes 13 to penetrate longitudinally A number of perforations 52, each positioning bolt 60 is pivoted into each of the perforations 52 from top to bottom, each positioning bolt 60 is screwed to each positioning screw hole 13, and the positioning block 50 is locked on the main body 10 accordingly , For positioning the lead screw 40, thereby positioning the first movable jaw 20 and the second movable jaw 30.

The number of the limiting portion 43 can also optionally be changed to one. When the number of the limiting portion 43 is one, the positioning block 50 can be changed to form a notch (not shown) at the bottom edge, and the positioning block 50 sets the limiting portion 43 through the notch, thereby constituting another embodiment based on the variation of this embodiment.

The perforation 52 has a long hole with a long aperture. The long aperture of the perforation 52 is larger than the aperture of the positioning screw hole 13, and the diameter direction of the long aperture of the perforation 52 is horizontal to the long axis direction of the lead screw 40 The orthographic projection is parallel, so that the positioning block 50 and the perforation 52 move along the long axis of the lead screw 40.

It is defined that the first movable jaw 20 and the second movable jaw 30 have a virtual midpoint (not shown in the figure) between each other, and the midpoint is when the first movable jaw 20 and the second movable jaw 30 move closer together The end of the stroke; with the above-mentioned structural composition and technical characteristics, based on the need for the first assembly to form a center vise or the need for the positioning of the lead screw 40 to produce a certain offset due to the clamping of the workpiece for processing, it can be adjusted by The positioning of the lead screw 40 is adjusted to achieve the adjustment of the positioning of the midpoint between the first movable jaw 20 and the second movable jaw 30.

When adjusting the positioning of the midpoint, first loosen each of the positioning bolts 60 to release the positioning. While keeping each of the positioning bolts 60 in contact with each of the through holes 52 and each of the positioning screw holes 13, follow the The lead screw 40 axially pushes the first movable jaw 20 and the second movable jaw 30, because the perforation 52 has an elongated hole with a long aperture, and the perforation 52 and the positioning bolt 60 are spatially opposed to each other. In the case where the positioning bolt 60 can maintain the screw connection with the positioning screw hole 13, the positioning block 50 has to form a relative displacement along the long aperture direction of the through hole 52 by the through hole 52 and the positioning bolt 60 , The lead screw 40 and the positioning block 50 can then move with the first movable jaw 20 and the second movable jaw 30. We can use various measuring tools or jigs to assist in determining that the midpoint has moved to the desired positioning At this time, each of the positioning bolts 60 is twisted and locked, so that the positioning block 50 is fixedly combined with the main body 10, thereby positioning the lead screw 40, thereby fixing the positioning of the midpoint.

The main body 10 can maintain the posture in the space without changing, and the midpoint adjustment operation can be performed. After the adjustment is completed, the positioning bolts 60 located in the middle section of the main body 10 are directly locked from top to bottom. , The positioning after adjustment can be completed. By screwing each of the positioning bolts 60 to the main body 10, the positioning reliability of the midpoint is high, and the vibration of the processing operation is not easy to cause the midpoint to shift. There is no need to remove the main body 10 from the machine table of the processing tool, nor to turn over the main body 10 to perform positioning release, adjustment and positioning locking operations, and the positioning release and positioning locking operations only need to loosen and Each of the positioning bolts 60 at the mid-section of the main body 10 can be twisted to complete. The positioning release, adjustment, and positioning lock operations can be easily performed. The size, weight, and shape of the main body 10 will not cause The impact of unfavorable operation, further speaking, this creation can be adjusted and locked by the simplified structure formed by the lead screw 40, the positioning block 50 and the perforation 52 with a long aperture in cooperation with the positioning bolt 60 Point positioning.

Furthermore, the bottom edge of the positioning block 50 is recessed upward by a groove 54. The lead screw 40 forms a connecting section 44 between the limiting portions 43. The connecting section 44 passes through the groove 54, according to the positioning The block 50 straddles the lead screw 40.

As shown in Figures 4 to 8, the second embodiment is different from the first embodiment in that the second embodiment further includes a jig 70, which is removably provided on the main body 10, thereby assisting in improving The positioning and adjustment of the lead screw 40 is convenient; the jig 70 has a stopper 71 that is centrally located between the first jaw 20 and the second jaw 30, and the stopper 71 Leaning against the top edge of each of the side blocks 11, the stopper 71 cooperates with each of the through holes 52 to penetrate a channel 72 from top to bottom, so that a locking tool (not shown) enters the channel 72 to lock each of the Locating bolt 60.

The jig 70 further has a connecting portion 73 and an abutting portion 74, wherein one end of the connecting portion 73 is laterally connected to the stopper 71, and the other end of the connecting portion 73 is laterally opposite to the abutting portion 74 The abutting portion 74 abuts against one end of the main body 10, the abutting portion 74 passes through two locking bolts 75, each of the locking bolts 75 is screwed to one end of each side block 11, and each of the The cap portion 752 of the locking bolt 75 and each of the side blocks 11 relatively clamp the abutting portion 74 for positioning the jig 70 on the main body 10; the middle portion of the stopper 71 is used relative to the abutting portion 74 The distance between the side adjacent to the stop 71 is exactly equal to the distance between the midpoint and one end of the main body 10, so that the stop 71 is centered on the first jaw 20 and the second jaw 20 Between the jaws 30.

In order to easily recognize the relative state of the first movable jaw 20, the second movable jaw 30 and the stop 71, FIGS. 5 to 8 do not show the connecting portion 73, the abutting portion 74 and the locking bolt 75, respectively When using the fixture 70 to adjust the positioning, the fixture 70 is set in the main body 10, and the stop 71 is located between the first movable jaw 20 and the second movable jaw 30, loosen the positioning bolts 60 , And keep each of the positioning bolts 60 in contact with each of the through holes 52 and each of the positioning screw holes 13, as shown in FIG. 5, rotate the lead screw 40 to make the first movable jaw 20 and the second movable jaw 30 approach, As shown in FIG. 6, the second movable jaw 30 abuts against the stop 71, and the first movable jaw 20 is not in contact with the stop 71, a gap is formed between the first movable jaw 20 and the stop 71 80. Continue to rotate the lead screw 40. Since the stopper 71 blocks the second movable jaw 30, the lead screw 40 linearly shifts toward the second movable jaw 30 while rotating, as shown in FIGS. 7 and 8 As shown, while the rotation of the lead screw 40 causes the first movable jaw 20 to continue to move toward the stop 71, the displacement of the lead screw 40 also drives the first movable jaw 20 to move to the stop 71, because the perforation 52 is There is an elongated hole with a long aperture, and the perforation 52 and the positioning bolt 60 are spatially opposed to each other. When the positioning bolt 60 and the positioning screw hole 13 are kept in screw connection, the positioning block 50 By the perforation 52 and the positioning bolt 60 being displaced along the long aperture direction of the perforation 52 toward the right side of the drawing, when the first movable jaw 20 abuts the stopper 71, the midpoint is displaced to the desired position, The locking tool can lock each positioning bolt 60 through the channel 72, so that the positioning block 50 is fixedly combined with the main body 10 to complete the positioning operation; the one-point chain line shown in FIG. 8 is used to indicate the positioning block 50 In the position in the state shown in FIG. 6, the arrow drawn on the side of the perforation 52 indicates the moving direction of the perforation 52, and the arrow drawn in the dashed line within the range of the positioning block 50 indicates the moving direction of the positioning block 50 .

With the setting of the fixture 70, the adjustment operation can be easily completed without using other measuring tools. With the formation of the channel 72, the positioning bolt 60 can be easily loosened and locked, and the positioning and locking of the positioning can be released. Easy to operate.

As shown in Fig. 9, the third embodiment is different from the second embodiment in that the side block 11 of the third embodiment is recessed in the center of the outer side of the guide groove 12 with an embedding groove 14, each of the embedding The grooves 14 respectively extend upward on the top edge of each of the side blocks 11, and the two ends of the stop block 71 are respectively provided with an inlay 76, and each of the inlays 76 is embedded in each of the inlay grooves 14 from top to bottom, and is positioned accordingly The jig 70 is on the main body 10.

As shown in Figure 10, the fourth embodiment is different from the third embodiment in that the stopper 71 of the fourth embodiment cooperates with each of the through holes (not shown in the figure) to penetrate through the several channels 72 from top to bottom. The passages 72 are respectively formed up and down with the perforations, so that the locking tool enters the passages 72 respectively to lock the positioning bolts (not shown in the figure).

10: main body 11: Side block 12: Guide groove 13: Positioning screw hole 14: Insert groove 20: The first movable jaw 30: second movable jaw 40: Lead screw 41: The first thread segment 42: second thread segment 43: limit part 44: connection segment 50: positioning block 52: Piercing 54: Groove 60: positioning bolt 70: Fixture 71: Stop 72: Channel 73: Connection 74: abutment 75: locking bolt 752: cap 76: stud 80: gap 3-3: 3-3 section is shown in Figure 3

Figure 1 is a three-dimensional exploded view of the first embodiment of the creation. Figure 2 is a top view of the first embodiment of the creation. Figure 3 is a cross-sectional view of Figure 2-3-3. Fig. 4 is a three-dimensional exploded schematic diagram of the second embodiment of the creation. Fig. 5 is a schematic top view of the adjustment state (1) of the second embodiment of the creation. Fig. 6 is a schematic top view of the adjustment state (2) of the second embodiment of the creation. Fig. 7 is a schematic top view of the adjustment state (3) of the second embodiment of the creation. Fig. 8 is a partial enlarged schematic diagram of the stop part of the adjustment state (3) shown in Fig. 7. Fig. 9 is a three-dimensional exploded schematic diagram of the third embodiment of the creation. Figure 10 is a three-dimensional view of the fixture of the fourth embodiment of the creation.

10: main body

11: Side block

12: Guide groove

13: Positioning screw hole

20: The first movable jaw

30: second movable jaw

40: Lead screw

41: The first thread segment

42: second thread segment

43: limit part

44: connection segment

50: positioning block

52: Piercing

54: Groove

60: positioning bolt

Claims (9)

A center vise adjustment and positioning structure, including: A main body, the main body forms two side blocks upwards, the main body forms a guide groove between each of the side blocks, the guide groove extends at both ends of the main body, and the main body faces the middle part of the bottom side of the guide groove Several positioning screw holes are formed underneath; A first movable jaw and a second movable jaw are opposite to each other, and the first movable jaw and the second movable jaw are respectively flexibly arranged in the guide groove; A lead screw is arranged in the guide groove, the lead screw has a first thread section and a second thread section, the first thread section and the second thread section have opposite thread directions, and the lead screw is in the first thread At least one limiting part is formed between the second threaded section and the first threaded section. The first threaded section is threadedly connected to the first movable jaw, and the second threaded section is threadedly connected to the second movable jaw, so that the lead screw is driven The first movable jaw and the second movable jaw move relative to each other or move away from each other synchronously; A positioning block is set in the guide groove, the positioning block is set in the part of the lead screw located at the limiting part, and the positioning block cooperates with each positioning screw hole to longitudinally pass through a plurality of perforations, and the perforation has a long aperture. Long hole, the long hole diameter of the hole is larger than the hole diameter of the positioning screw hole, and the diameter direction of the long hole diameter of the hole is parallel to the horizontal orthographic projection of the long axis direction of the lead screw, according to the positioning block and the hole Must move along the long axis of the lead screw; and A number of positioning bolts, each positioning bolt is inserted into each hole from top to bottom, each positioning bolt is screwed to each positioning screw hole, and the positioning block is locked on the main body according to this, for positioning the guide Screw to position the first movable jaw and the second movable jaw. The center vise adjusting and positioning structure according to claim 1, wherein the lead screw forms two limiting parts. The center vise adjustment positioning structure according to claim 2, wherein the two sides of the positioning block are respectively adjacent to the side blocks. The center vise adjustment positioning structure according to claim 2, wherein the bottom edge of the positioning block is recessed upward by a groove, the lead screw forms a connecting section between each of the limiting parts, and the connecting section passes through the concave According to the groove, the positioning block straddles the lead screw. The center vise adjustment and positioning structure described in any one of claims 1 to 4 further includes a jig, wherein the jig is removably arranged on the main body, thereby assisting in improving the lead screw Convenience of positioning adjustment. The center vise adjusting and positioning structure according to claim 5, wherein the jig is provided with a stopper, the stopper is centrally located between the first jaw and the second jaw, and the stopper cooperates with each of the The perforation penetrates through at least one channel from top to bottom, so that a locking tool enters the channel to lock the positioning bolts. The center vise adjustment and positioning structure according to claim 6, wherein the stopper cooperates with each of the through holes to penetrate through a plurality of the channels from top to bottom, and each channel is opposite to each of the through holes, so that the locking tools are respectively Enter each channel and lock each positioning bolt. The center vise adjusting and positioning structure according to claim 6, wherein the jig is further provided with a connecting portion and an abutting portion, wherein one end of the connecting portion is laterally connected to the stopper, and the other of the connecting portion One end is in lateral contact with the abutment portion, the abutment portion abuts against one end of the main body, and the abutment portion is penetrated with two locking bolts, and each of the locking bolts is screwed to one end of each side block, respectively, And the cap portion of each locking bolt and each side block relatively clamp the abutting portion, so that the stopper is centered between the first jaw and the second jaw, and the stopper and each The top edges of the side blocks are close to each other for positioning the jig on the main body. The center vise adjustment and positioning structure according to claim 6, wherein each of the side blocks is recessed in the center of the outer side facing away from the guide groove, and each of the grooves respectively extends upwards on the side block At the top edge, both ends of the stopper are respectively provided with an inlay post, and each inlay post is respectively embedded in each embedding groove from top to bottom, and the jig is positioned on the main body accordingly.

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