TWI604914B - Fixture mold base - Google Patents

Description

Clamp holder

The invention relates to a clamp mold base, and in particular to a clamp mold base for preventing relative rotation of the mold base.

According to the conventional mold holder, there is a first mold base, a second mold base coupled to the first mold base, and a fastening device; the first mold base has a workpiece seat plate and is disposed on the workpiece seat plate A workpiece rod is simultaneously used to provide a fixture for holding a workpiece. The second mold base has a collet fixing plate and a collet fixed to the collet fixing plate, wherein the collet has a through hole for inserting the pull rod of the first mold base; A fastening device is disposed on the collet.

Through the above structure, when the first mold base is coupled with the second mold base, the pull rod will be embedded in the through hole of the chuck, and the operator can move the lever by one of the fastening devices. Pushing a plurality of steel balls to move, respectively, pressing the steel balls against the outer side of the cylindrical rod, thereby forcing the pull bolt to enter the through hole deeper, thereby achieving the docking of the first mold base and the second mold base the goal of.

However, the workpiece seat plate and the second mold base are fixed to each other only by the tie rod and the fastening device, and once the first mold base of the carrier clamp receives an external force from different directions (for example, the cutter cuts the workpiece, The influence of the joint processing of the milling and turning process is likely to cause the first die holder to rotate relative to the second die base centering on the drawbar, which may seriously affect the processing of the workpiece. Therefore, how to improve the positioning state of the clamping die holder to achieve a good arrangement relationship between the first die holder and the second die holder is the primary problem to be solved.

In view of the above, an object of the present invention is to provide a clamp mold base for preventing rotation of a clamp mold base after assembly.

In order to achieve the above object, the clamp mold base provided by the present invention comprises a first mold base, a second mold base and a positioning means; the first mold base comprises a pull rod; the second mold base is detachable And the first die holder is configured to include a through hole for inserting the pull rod of the first mold base; the positioning means is configured to prevent the combined first mold base and the second mold base from rotating relative to each other .

The effect of the invention is to achieve a good positioning effect of the clamp mold base and prevent the first mold base from rotating relative to the second mold base.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings. Referring to FIG. 1 to FIG. 3, the clamp mold base 100 of the first preferred embodiment of the present invention includes There is a first mold base 10, a second mold base 20, a positioning means and a fastening device, wherein the second mold base 20 is detachably arranged with the first mold base 10, the positioning means The first mold base 10 and the second mold base 20 are prevented from rotating relative to each other; the fastening device is disposed on the second mold base 20 for the first mold base 10 and the second The die holder 20 is firmly butted, and the fastening device is a conventional technique, and details are not described herein.

The first mold base 10 has a workpiece seat plate 12 and a pull rod 14 disposed on the workpiece seat plate 12; wherein the workpiece seat plate 12 is a rectangular plate body for providing a workpiece or a fixture (Fig. Not shown) fixed.

The second mold base 20 includes a chuck fixing plate 22, a chuck 24, a positioning base body and a plurality of first bolts 28; the chuck fixing plate 22 is similar to the workpiece seat plate 12, and is also a rectangular plate body having a plurality of screw holes 22a; the chuck 24 is fixed to the chuck fixing plate 22 and has a through hole 24a for providing the first die holder 10 The tie rod 14 is embedded.

In this embodiment, the positioning body is a ring 26 of an annular body; the collar 26 is sleeved on the outside of the clamping head 24, and the collar 26 is drilled with a plurality of through holes 26a. The through holes 26a are connected to the top surface and the bottom surface of the collar 26; the first bolts 28 are respectively inserted into the through holes 26a from the top surface side of the collar 26, and the first bolts 28 are A portion of the locking portion 22a is locked in the screw hole 22a of the chuck fixing plate 22, whereby the collar 26 is fixed to the chuck fixing plate 22.

The positioning means includes a first recess 12a, a second recess 26b and a positioning post 30. The first recess 12a is recessed from the bottom surface of the workpiece seat plate 12; the second recess 26b is a circular hole (shown in FIGS. 1 and 2), and is recessed from the top surface of the collar 26. When the first mold base 10 and the second mold base 20 are assembled to each other, the bottom surface of the workpiece seat plate 12 of the first mold base 10 abuts against the top surface of the chuck 24; The second groove 26b of the collar 26 is disposed in the first groove 12a of the workpiece seat plate 12; the tie rod 14 of the first die holder 10 is inserted into the through hole 24a of the chuck 24. And being fixed by a plurality of steel balls of the fastening device; thereby, the workpiece seat plate 12 and the second die holder 20 are positioned through the pull rod 14 and the positioning post 30 at two different positions, that is, The combined first mold base 10 and the second mold base 20 can be prevented from rotating relative to each other.

In addition, in addition to the manner in which the first embodiment is used to fix the collar 26 by a plurality of first bolts 28, as shown in FIG. 4, in the clamp mold base 100A of the second embodiment, a ring may also be used. 32 is drilled with a plurality of screw holes 32a, the screw holes 32a communicating with the inner ring surface and the outer ring surface of the collar 32; the plurality of second bolts 34 are respectively worn from the outer ring surface of the collar 32 The screw holes 32a are inserted into the screw holes 32a, and one end of the second bolts 34 is abutted against the outer ring surface of the chuck 36 to firmly bond the collar 32 to the chuck 36.

In addition to the embodiment shown in FIGS. 1 to 4, the jig base of the present invention may be other embodiments having the same effect. Referring to FIG. 5, it is a clamp die holder 100B according to a third preferred embodiment of the present invention. The clamp die holder 100B has a structure similar to that of the first embodiment described above, and the difference lies in one end of the positioning post 40 of the present embodiment. The top surface of the collar 62 of the second mold base 60 is fixed. When a first mold base 50 and the second mold base 60 are coupled to each other, the other end of the positioning post 40 is embedded in the first mold base. 50 in a recess 50a. Therefore, the assembled mold base 100B also has a good positioning effect, and effectively prevents the combined first mold base 50 from rotating relative to the second mold base 60.

Referring to FIG. 6, a clamp mold base 100C according to a fourth preferred embodiment of the present invention, the clamp mold base 100C is different from the third embodiment in that one end of the positioning post 70 of the embodiment is fixed to a first The bottom surface of the workpiece holder 82 of the die holder 80 is inserted into a recess 92a of the set of rings 92 when the first die holder 80 and a second die holder 90 are coupled to each other. Similarly, the assembly of the clamp die holder 100C after assembly is confirmed to be correct, and the situation in which the first die holder 80 is prevented from rotating relative to the second die holder 90 is prevented.

In the third embodiment and the fourth embodiment described above, the collar can be fixed in the manner described in the first embodiment and the second embodiment.

7 to 9 show a jig mold base 100D according to a fifth preferred embodiment of the present invention, which is based on the first embodiment. The positioning means of this embodiment has four spaced apart second grooves 93 formed concavely from the top surface of the collar 94 and having an elongated shape.

When the first die holder 95 approaches and is coupled toward the second die holder 96, one end of the positioning post 97 is disposed in the second groove 93 of the collar 94, and the other end is disposed in the first groove 101 of the workpiece seat plate 99. Thereby, the effect of preventing the combined first mold base 95 from rotating relative to the second mold base 96 is achieved.

The second embodiment and the fourth embodiment described above may be changed from the circular hole shape to the long shape (not shown) according to the shape of the second groove 93 described in the fifth preferred embodiment.

10 and FIG. 11 are the clamp mold bases 100E of the sixth preferred embodiment of the present invention. In this embodiment, the positioning base 102 is a non-annular positioning block, and the positioning base 102 is located beside the collet 103. And the second surface of the locating body 102 is recessed into a second recess 104 and two through holes 105 respectively located at two sides of the second recess 104. The first bolts 106 are respectively inserted into the two through holes. The hole 105 is partially locked in the two screw holes 108 of the chuck fixing plate 107, whereby the positioning base 102 is fixed to the chuck fixing plate 107. When the first die holder 109 is coupled to the second die holder 110, the two ends are respectively disposed on the second recess 104 of the positioning base 102 and the positioning post 112 in the workpiece seat plate 111, and the first prevention of the first can be achieved. The effect of the mold base 109 being rotated 110 relative to the second mold base.

In other embodiments, the positioning base body may also refer to the outer shape of the positioning base body 102 of the present embodiment or other types of the columnar body, etc., and is not limited to the above.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present invention and the scope of the patent application are intended to be included in the scope of the present invention.

[this invention]
100, 100A, 100B, 100C, 100D, 100E‧‧‧ fixture holder
10, 50, 80, 95, 109‧‧‧ first mold base
12, 82, 99, 111‧‧‧ workpiece seat plate
12a, 101‧‧‧ first groove
14‧‧‧ lever
20, 60, 96, 110‧‧‧ second mold base
22, 107‧‧‧ chuck fixing plate
24, 36, 103‧‧‧ chucks
24a‧‧‧Perforation
26, 32, 92, 94‧‧‧ collars
26a, 105‧‧‧through holes
26b, 93, 104‧‧‧ second groove
28, 106‧‧‧ first bolt
32a, 108‧‧‧ screw holes
34‧‧‧Second bolt
50a, 92a‧‧‧ grooves
30, 40, 70, 97, 112‧‧‧ positioning columns
102‧‧‧ positioning body

1 is a perspective view of a clamp mold base according to a first preferred embodiment of the present invention; FIG. 2 is a plan view of the clamp mold base of the first preferred embodiment of the present invention; FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 4 is a cross-sectional view of a clamp mold base of a second preferred embodiment of the present invention; FIG. 5 is a cross-sectional view of a clamp mold base of a third preferred embodiment of the present invention; Figure 7 is a perspective view of a clamp die holder according to a fifth preferred embodiment of the present invention; Figure 8 is a plan view of a clamp die holder according to a fifth preferred embodiment of the present invention; Figure 9 is a cross-sectional view taken along line 9-9 of Figure 8; Figure 7 is a perspective view of a clamp mold base of a sixth preferred embodiment of the present invention; and Figure 11 is a plan view of a clamp mold base of a sixth preferred embodiment of the present invention.

100‧‧‧Clamp holder

10‧‧‧ first mold base

12‧‧‧Working seat plate

12a‧‧‧first groove

20‧‧‧Second mold base

22‧‧‧Chuck fixing plate

22a‧‧‧ screw holes

24‧‧‧ chuck

24a‧‧‧Perforation

26‧‧‧ collar

26a‧‧‧Tongkong

26b‧‧‧second groove

28‧‧‧First bolt

30‧‧‧Positioning column

Claims (8)

A clamp mold base includes: a first mold base including a pull rod; a second mold base detachably disposed with the first mold base, and including a pull rod providing the first mold base a positioning hole for positioning, the first mold base and the second mold base are not rotated relative to each other; wherein the first mold base comprises a workpiece seat plate, and the pull rod is disposed on the workpiece base The positioning means includes at least one first groove, at least one second groove and at least one positioning post, wherein the first groove is formed by recessing from a surface of the workpiece seat plate, and the second groove is formed Forming a concave surface from the surface of the second mold base, the two ends of the positioning post are respectively inserted into the first recess and the second recess; wherein the second mold base comprises a chuck fixing plate, a chuck and A positioning body, wherein the clamping head and the positioning seat body are fixed on the clamping head fixing plate, the clamping head has the through hole, and the positioning seat body has the second groove. The clamp mold base according to claim 1, wherein the positioning base system is an annular collar, and the collar is sleeved outside the chuck and fixed to the chuck fixing plate, the collar has the first Two grooves. The clamp mold base of claim 2, comprising a plurality of first bolts, the collar having a plurality of through holes communicating with a top surface and a bottom surface of the collar; the first bolts respectively penetrate the through holes And a part is locked in the chuck fixing plate. The clamp mold base of claim 2, comprising a plurality of second bolts, the collar having a plurality of screw holes connecting the outer ring surface and the inner ring surface of the collar; the second bolts are respectively locked in The tapped hole of the collar has one end that abuts the outer surface of the collet. The clamp mold base of claim 2, wherein the first mold base comprises a workpiece seat plate, the work seat plate is fixed to the pull rod; the positioning means comprises at least one groove and at least one positioning post, wherein the concave portion a groove is formed concavely from a surface of one of the workpiece seat plate and the second die holder, and one end of the positioning post is coupled to the other surface of the workpiece seat plate and the second die holder, and the positioning post is further One end is inserted into the groove. The clamp mold base of claim 5, wherein the second mold base comprises a chuck fixing plate, a chuck and a ring, wherein the chuck and the ring are fixed on the chuck fixing plate. The collet has the perforation, and the collar is sleeved on the outside of the collet, and one end of the positioning post is coupled to one surface of the workpiece seat plate and the collar. The clamp mold base of claim 6, comprising a plurality of first bolts, the collar having a plurality of through holes communicating with a top surface and a bottom surface of the collar; the first bolts respectively penetrate the through holes And a part is locked in the chuck fixing plate. The clamp mold base of claim 6, comprising a plurality of second bolts, the collar having a plurality of screw holes connecting the outer ring surface and the inner ring surface of the collar; the second bolts are respectively locked in The tapped hole of the collar has one end that abuts the outer surface of the collet.