Drilling clamping device

Abstract

The utility model relates to the field of mold machining, in particular to a drilling and clamping device. The drilling clamping device comprises a fixing sleeve plate, the fixing sleeve plate comprises a first clamping part and a second clamping part which are opposite, and a clamping groove used for containing a to-be-machined workpiece is formed between the first clamping part and the second clamping part. A positioning concave point is arranged on the surface of the workpiece to be machined, the first clamping part is provided with a clamping piece, and the second clamping part is provided with a first positioning piece; wherein the first positioning piece is used for being matched with the positioning concave point when a workpiece to be machined is clamped; the clamping piece is movably connected with the first clamping part, and the clamping piece is used for tightly jacking the to-be-machined workpiece towards the direction of the second clamping part when the first clamping part clamps the to-be-machined workpiece. According to the drilling clamping device, the machining procedures can be reduced when the workpiece is drilled, and the machining period is shortened.

Description

Technical Field

[0001] The present disclosure relates to the field of mold processing, and more particularly, to a drilling clamping device. Background Art

[0002] When using a two-axis deep hole drilling device to process a workpiece, such as processing a waterway on a mold, since the deep hole drilling device cannot move the processing coordinates, for a square part, before processing the waterway with the deep hole drill, it is necessary to mill clamping and positioning holes at both ends of the water hole position on a milling machine to ensure the dimensional accuracy of the waterway position, and the process is relatively complex.

[0003] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0004] The purpose of the present disclosure is to provide a drilling clamping device, which can reduce the processing procedures and shorten the processing cycle when drilling a workpiece.

[0005] The drilling clamping device includes:

[0006] A fixed sleeve plate, including a first clamping portion and a second clamping portion opposite to each other. A clamping groove for accommodating the workpiece to be processed is formed between the first clamping portion and the second clamping portion; positioning concave points are provided on the surface of the workpiece to be processed, a clamping member is provided on the first clamping portion, and a first positioning member is provided on the second clamping portion;

[0007] Wherein, the first positioning member is used to match with the positioning concave points when clamping the workpiece to be processed; the clamping member is movably connected to the first clamping portion, and the clamping member is used to push the workpiece to be processed tightly towards the second clamping portion when the first clamping portion clamps the workpiece to be processed.

[0008] In an exemplary embodiment of the present disclosure, the fixed sleeve plate includes a connecting portion. The first clamping portion and the second clamping portion are respectively provided at opposite ends of the connecting portion along a first direction. The connecting portion is used to be attached to the side of the workpiece to be processed in a second direction. The first direction is perpendicular to the second direction, and the machine tool drill bit is arranged along the second direction.

[0009] In an exemplary embodiment of the present disclosure, a pair of fixed sleeve plates are arranged on opposite sides of the workpiece to be processed along the second direction to clamp the workpiece to be processed in the second direction.

[0010] In an exemplary embodiment of the present disclosure, a plurality of positioning concave points are sequentially arranged on the surface of the workpiece to be processed along a third direction. The third direction is perpendicular to the first direction and perpendicular to the second direction.

[0011] In an exemplary embodiment of the present disclosure, the positioning dimple is a deep spherical groove with a size of (φ3 to φ5) x (0.4 to 0.6) mm.

[0012] In an exemplary embodiment of the present disclosure, the first positioning member includes a threaded rod and a positioning steel ball located at the end of the threaded rod; the threaded rod has an inner cavity with an open end, an elastic member is provided in the inner cavity, the positioning steel ball is installed at the opening of the inner cavity and partially exposed from the inner cavity, and the positioning steel ball is connected to the threaded rod through the elastic member.

[0013] In an exemplary embodiment of the present disclosure, the drilling and clamping device further includes a positioning plug, the positioning plug is connected to the side of the connecting portion away from the workpiece to be machined in the second direction, and the other end of the positioning plug in the second direction is used to contact the machine tool drill bit.

[0014] In an exemplary embodiment of the present disclosure, the drilling and clamping device further includes a second positioning member, the second positioning member is provided on the side of the connecting portion away from the workpiece to be machined in the second direction;

[0015] The second positioning member is provided with a first plug hole penetrating in the second direction, the connecting portion is provided with a through positioning hole aligned with the first plug hole, the first plug hole, the positioning hole and the machine tool drill bit are coaxial, the positioning plug sequentially passes through the first plug hole and the positioning hole, and when the machine tool drill bit processes, it penetrates the positioning plug from the second direction and drills a hole on the side of the workpiece to be machined in the second direction.

[0016] In an exemplary embodiment of the present disclosure, the connecting portion is provided with a through positioning groove for accommodating the second positioning member, and the positioning hole is located in the positioning groove.

[0017] In an exemplary embodiment of the present disclosure, the drilling and clamping device further includes an anti - top member, the anti - top member is provided between the machine tool top plate and the fixed sleeve plate of the machine tool, a positioning conical surface is provided on the side of the anti - top member close to the machine tool top plate, the positioning conical surface contracts towards the direction of the machine tool top plate, a central hole is provided on the side of the machine tool top plate close to the anti - top member, and the positioning conical surface is used to abut against the central hole;

[0018] Wherein, the anti - top member is provided with a through second plug hole, and one end of the positioning plug penetrates into the second plug hole for contacting the machine tool drill bit.

[0019] The drilling and clamping device provided by the present disclosure can clamp the workpiece to be machined through the first clamping portion and the second clamping portion. Specifically, the workpiece to be machined can be accurately and firmly clamped through the positioning dimple and the clamping member, and the deep - hole drilling process can be directly carried out without pre - machining process holes on the workpiece to be machined, reducing the processing procedures and shortening the processing cycle. The same applies to the core parts, and it is not necessary to lengthen both ends of the core part to be machined, so the cost of raw materials can be reduced. Description of the Drawings

[0020] The accompanying drawings herein are incorporated into and form a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0021] To better understand the present disclosure, reference may be made to the embodiments shown in the following accompanying drawings. The components in the accompanying drawings are not necessarily to scale, and related elements may be omitted to emphasize and clearly illustrate the technical features of the present disclosure. Additionally, related elements or components may have different arrangements known in the art. Furthermore, in the accompanying drawings, the same reference numerals denote the same or similar components in each drawing. Among them:

[0022] Figure 1 FIG. is a schematic diagram of deep hole drilling for core - type parts in the related art;

[0023] Figure 2 FIG. is a schematic diagram of an exemplary embodiment of the drilling clamping device of the present disclosure.

[0024] The description of the reference numerals is as follows:

[0025] 1. Fixed sleeve plate; 100. Workpiece to be processed; 101. Positioning concave point; 11. First clamping portion; 12. Second clamping portion; 13. Clamping member; 14. First positioning member; 15. Connecting portion; 2. Second positioning member; 3. Positioning plug; 4. Anti - top member; 5. Machine tool top plate; 6. Machine tool drill bit. Detailed implementation manners

[0026] Next, the technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the exemplary embodiments of the present disclosure. The exemplary embodiments described herein are only for illustrative purposes and are not intended to limit the protection scope of the present disclosure. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the protection scope of the present disclosure.

[0027] Unless otherwise specified or stated, the technical terms or scientific terms used in this disclosure shall have the ordinary meanings understood by persons of ordinary skill in the field to which this disclosure pertains. In this disclosure, terms such as "first" and "second" are used only as labels, not as limitations on the quantity, importance, or order of their objects. Words such as "comprising" or "including" are intended to mean that the elements appearing before this word cover the elements listed after this word and their equivalents, without excluding other elements. Terms such as "connected" and "fixed" should be understood in a broad sense. For example, unless otherwise specified or stated, "connected" can be a fixed connection, a movably connected connection, an integral connection, a detachable connection, a direct connection, or an indirect connection through an intermediate medium.

[0028] Furthermore, the directional terms such as "up / down", "length / width / height", "inside / outside", etc. described in the exemplary embodiments of this disclosure are only used to represent relative positional relationships. For example, for convenience, they are described according to the angles shown in the drawings, or according to the general understanding in the art, according to the angles at which they are placed during actual use. It should be understood that these directional terms are relative concepts, and they can change correspondingly with the change of the orientation of the components placed in the drawings, and should not be understood as a limitation on the exemplary embodiments of this disclosure.

[0029] For example, for the convenience of description, this disclosure defines the three directions of a spatial rectangular coordinate system as the first direction, the second direction, and the third direction respectively, and the first direction, the second direction, and the third direction are perpendicular to each other pairwise. When machining a workpiece 100 to be machined, the thickness / length / width direction of the workpiece 100 to be machined can be used as the first direction, the second direction, and the third direction respectively. For example, as shown in the reference Figure 2 When drilling holes at both ends of the length direction of the workpiece 100 to be machined, the machine tool drill bit 6 is arranged along the second direction. For the convenience of description, in the description of the following exemplary embodiments, the first direction is denoted as the Y direction, the second direction is denoted as the X direction, and the third direction is denoted as the Z direction. Those skilled in the art should understand that the drilling and clamping device provided by this disclosure can also drill holes in other directions of the workpiece 100 to be machined, such as drilling holes in the width or thickness direction of the workpiece 100 to be machined; in different embodiments, according to the characteristics of the workpiece 100 to be machined and the processing requirements, the first direction, the second direction, and the third direction can be reversed, and such changes in the spatial directions will not have a substantial impact on the implementation of the technical solution of this disclosure.

[0030] In the related art, since the deep hole drilling equipment cannot move the machining coordinates, when machining the water channels on the mold, for square parts, it is necessary to mill clamping and positioning holes at both ends of the water hole positions on the milling machine to ensure the dimensional accuracy of the water channel positions. For example, two φ10x8mm clamping and positioning holes are machined at both ends of the water hole position on the milling machine in advance.

[0031] When processing core parts, refer to Figure 1 As shown, there is no extra space at both ends of the waterway to process process holes. Therefore, both ends of the core part to be processed need to be lengthened. For example, when purchasing materials, each end is lengthened by 8 mm to reserve space for the deep hole drilling process hole. After the deep hole drilling of the waterway is completed, the excess material is removed. Figure 1 The dashed lines in Figure 1 show the cutting positions for removing materials after lengthening both ends of the core part and drilling.

[0032] The inventor found that when performing deep hole drilling on the workpiece 100 to be processed in the related art, there are problems of complex processes and long processing cycles. In addition, for core parts, there is also a problem of increasing the cost due to adding materials at both ends for drilling.

[0033] Based on the above problems, refer to Figure 2 As shown, the present disclosure provides a drilling clamping device, including a fixed sleeve plate 1. The fixed sleeve plate 1 includes opposite first clamping part 11 and second clamping part 12. A clamping groove for accommodating the workpiece 100 to be processed is formed between the first clamping part 11 and the second clamping part 12; there is a positioning concave point 101 on the surface of the workpiece 100 to be processed, a clamping member 13 is provided on the first clamping part 11, and a first positioning member 14 is provided on the second clamping part 12;

[0034] Wherein, the first positioning member 14 is used to match with the positioning concave point 101 when clamping the workpiece 100 to be processed; the clamping member 13 is movably connected to the first clamping part 11, and the clamping member 13 is used to press the workpiece 100 to be processed tightly towards the second clamping part 12 when the first clamping part 11 clamps the workpiece 100 to be processed.

[0035] The drilling clamping device provided by the present disclosure can clamp the workpiece 100 to be processed by the first clamping part 11 and the second clamping part 12. Specifically, the workpiece 100 to be processed can be accurately and firmly clamped through the positioning concave point 101 and the clamping member 13, and the deep hole drilling process can be directly carried out without pre-processing process holes on the workpiece 100 to be processed, reducing the processing procedures and shortening the processing cycle. The same applies to core parts, and it is not necessary to lengthen both ends of the core part to be processed, so the cost of raw materials can be reduced.

[0036] Refer to Figure 2 As shown, in an exemplary embodiment of the present disclosure, the fixed sleeve plate 1 includes a connecting part 15. The first clamping part 11 and the second clamping part 12 are respectively arranged at opposite ends of the connecting part 15 along the first direction (the Y direction in the figure, the thickness direction of the workpiece 100 to be processed). The connecting part 15 is used to be attached to the side of the workpiece 100 to be processed in the second direction (the X direction in the figure, the length direction of the workpiece 100 to be processed), and the machine tool drill bit 6 is arranged along the Y direction.

[0037] Exemplarily, the clamping member 13 can be a fastening screw for locking the workpiece 100 to be machined. In one embodiment, the clamping member 13 is an M8 screw, which is movably connected to the first clamping portion 11. By rotating the clamping member 13, the workpiece 100 to be machined can be clamped or loosened, and it can also be adapted to workpieces 100 with different dimensions in the Y direction.

[0038] In an exemplary embodiment of the present disclosure, the positioning concave point 101 can be a deep spherical groove. Exemplarily, the first positioning member 14 can include a positioning steel ball, which is adapted to the positioning concave point 101 through a spherical surface to play a self-positioning role. The first positioning member 14 can include a threaded rod, the threaded rod has a cavity with an open end, an elastic member is provided in the cavity, the positioning steel ball is installed at the opening of the cavity and partially exposed from the cavity to be arranged at the end of the threaded rod, and the positioning steel ball is connected to the threaded rod through the elastic member. The elastic member can be a spring, which provides a pressing force for the positioning steel ball towards the positioning concave point 101 on the surface of the workpiece 100 to be machined. By rotating the threaded rod, the first positioning member 14 can be moved in the Y direction to adapt to workpieces 100 with different dimensions in the Y direction, and can also assist in adjusting the clamping force.

[0039] In an exemplary embodiment of the present disclosure, the positioning concave point 101 is a deep spherical groove of (φ3 - φ5) x (0.4 - 0.6) mm. The positioning concave point 101 can be formed when the workpiece 100 to be machined is rough-machined in a machining center. Exemplarily, the positioning concave point 101 is a deep spherical groove of φ4 x 0.5 mm.

[0040] In an exemplary embodiment of the present disclosure, refer to Figure 2 As shown, a plurality of positioning concave points 101 are sequentially arranged on the surface of the workpiece 100 to be machined along the Z direction. By matching and positioning the positioning concave points 101 at different positions with the first positioning member 14, drilling can be performed at multiple positions in the Z direction of the workpiece 100 to be machined.

[0041] In an exemplary embodiment of the present disclosure, refer to Figure 2 As shown, the drilling and clamping device further includes a positioning plug 3, the positioning plug 3 is connected to the outside of the connecting portion 15 in the X direction, and the other end of the positioning plug 3 along the second direction is used to contact the machine tool drill bit 6. When the machine tool drill bit 6 drills the workpiece 100 to be machined during machining, after penetrating the positioning plug 3 along the X direction, it drills on the side of the workpiece 100 to be machined. The positioning plug 3 can prevent the drill bit from shaking and reduce the process error of machining.

[0042] In an exemplary embodiment of the present disclosure, refer to Figure 2As shown in the figure, the drilling clamping device further includes a second positioning member 2, which is arranged on the outer side of the connecting portion 15 in the X direction; a first plug hole penetrating in the X-axis direction is provided on the second positioning member 2, and a through positioning hole aligned with the first plug hole is provided on the connecting portion 15. The first plug hole, the positioning hole and the machine tool drill bit 6 are coaxial. The positioning plug 3 sequentially passes through the first plug hole and the positioning hole. When the machine tool drill bit 6 drills the workpiece 100 to be processed during machining, after penetrating the positioning plug 3 in the X direction, it drills a hole on the side of the workpiece 100 to be processed.

[0043] It should be noted that the statement "the positioning hole is aligned with the first plug hole" in the present disclosure means that the projection of the first plug hole in the X direction is within the positioning hole, rather than meaning that the projection of the first plug hole and the positioning hole in the X direction coincide. For example, in an exemplary embodiment, the first plug hole may be spatially located within the positioning hole. Specifically, a positioning groove penetrating in the X direction is provided on the connecting portion 15 for accommodating the second positioning member 2. In this exemplary embodiment, on the connecting portion 15, there is no solid positioning hole, that is, the entire second positioning member 2 can be located within the positioning groove, and the positioning hole is absorbed by the positioning groove. The statement "the positioning plug 3 sequentially passes through the first plug hole and the positioning hole" in the present disclosure can be understood as that when the positioning plug 3 passes through the first plug hole, it also equivalently passes through the positioning hole.

[0044] Exemplarily, the positioning plug 3 is connected to the fixed sleeve plate 1 through the second positioning member 2. By replacing the second positioning member 2 with different first plug hole positions in the Y direction, the pilot hole position of the workpiece 100 to be processed in the Y direction can be changed to adapt to the workpiece 100 to be processed with different hole positions in the Y direction.

[0045] Particularly, through the combination of the positioning concave point 101 in the foregoing exemplary embodiment of the present disclosure and the second positioning member 2 in this exemplary embodiment, the changes in different hole positions of the workpiece 100 to be processed in two directions perpendicular to the drilling direction can be adapted, so that the drilling clamping device of the present disclosure can have a wide size coverage range.

[0046] In an exemplary embodiment of the present disclosure, referring to Figure 2 As shown in the figure, the drilling clamping device further includes an anti-top member 4, which is arranged between the machine tool top plate 5 of the machine tool and the fixed sleeve plate 1. A positioning conical surface is provided on the side of the anti-top member 4 close to the machine tool top plate 5, and the positioning conical surface contracts towards the direction of the machine tool top plate 5. A central hole is provided on the side of the machine tool top plate 5 close to the anti-top member 4, and the positioning conical surface is used to abut against the central hole. Among them, a through second plug hole is provided on the anti-top member 4, and one end of the positioning plug 3 penetrates into the second plug hole for contacting the machine tool drill bit 6.

[0047] Specifically, one end of the positioning plug 3 penetrates into the second plug hole for contacting the machine tool drill bit 6; the other end penetrates into the second positioning member 2 / fixed sleeve plate 1, thereby connecting the anti-pushing member 4 with the second positioning member 2 / fixed sleeve plate 1. Exemplarily, the inclination angle of the positioning conical surface in the X direction is 45°.

[0048] In an exemplary embodiment of the present disclosure, a process of assembling a workpiece 100 to be processed, a drilling clamping device and a machine tool together includes:

[0049] The first step: By matching the positioning concave point 101 with the first positioning member 14, the relative position of the workpiece 100 to be processed and the fixed sleeve plate 1 is positioned, and then the clamping member 13 is tightened to fix the workpiece 100 to be processed in the clamping groove.

[0050] The second step: The second positioning member 2 is loaded into the positioning groove of the fixed sleeve plate 1, and then the positioning plug 3 is inserted.

[0051] The third step: The other end of the positioning plug 3 is connected to the anti-pushing member 4.

[0052] The fourth step: The machine tool top plate 5 is abutted against the positioning conical surface of the anti-pushing member 4.

[0053] In some exemplary embodiments of the present disclosure, the drilling clamping device is used to clamp both ends of the workpiece 100 to be processed in the X direction. The machine tool drill bits 6 can be arranged at both ends of the workpiece 100 to be drilled, and the opposite ends of the workpiece 100 to be processed in the X direction are drilled simultaneously or at different times. The above exemplary embodiments of the present disclosure can all be arranged in pairs. For example, the fixed sleeve plates 1 are arranged in pairs on the opposite sides of the workpiece 100 to be processed in the X direction, and the clamping grooves of a pair of fixed sleeve plates 1 face each other to clamp the workpiece 100 to be processed in the X direction. The positioning plug 3, the second positioning member 2, the anti-pushing member 4, etc. can all be arranged in pairs, which will not be elaborated here.

[0054] After considering the specification and practicing the disclosed utility model, those skilled in the art will readily conceive of other embodiments of the present disclosure. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include the common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

[0055] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The protection scope of the present disclosure is only limited by the appended claims.

Claims

1. A drilling clamping device, characterized in that: include: A fixed sleeve (1) comprises a first clamping portion (11) and a second clamping portion (12) which are opposite to each other, wherein a clamping groove for accommodating a workpiece (100) to be processed is formed between the first clamping portion (11) and the second clamping portion (12); a positioning concave point (101) is provided on the surface of the workpiece (100) to be processed, the first clamping portion (11) is provided with a clamping member (13), and the second clamping portion (12) is provided with a first positioning member (14); The first positioning member (14) is used to match the positioning recess (101) when clamping the workpiece (100) to be processed; the clamping member (13) is movably connected to the first clamping portion (11), and the clamping member (13) is used to press the workpiece (100) to be processed toward the second clamping portion (12) when the first clamping portion (11) clamps the workpiece (100) to be processed.

2. The drilling clamping device according to claim 1, characterized in that: The fixed sleeve (1) comprises a connecting portion (15), the first clamping portion (11) and the second clamping portion (12) are respectively arranged at opposite ends of the connecting portion (15) along a first direction, the connecting portion (15) is used to abut against the side of the workpiece (100) to be processed in a second direction, the first direction is perpendicular to the second direction, and the machine tool drill bit (6) is arranged along the second direction.

3. The drilling clamping device according to claim 2, characterized in that: The fixed sleeve plates (1) are arranged in pairs on opposite sides of the workpiece (100) to be processed along the second direction, so as to clamp the workpiece (100) to be processed in the second direction.

4. The drilling clamping device according to claim 2, characterized in that: The plurality of positioning recesses (101) are arranged in sequence along a third direction on the surface of the workpiece (100) to be processed, the third direction being perpendicular to the first direction, and the third direction being perpendicular to the second direction.

5. The drilling clamping device according to any one of claims 1 to 4, characterized in that: The positioning concave point (101) is a deep spherical concave groove of (φ3-φ5) x (0.4-0.6) mm.

6. The drilling clamping device according to claim 5, characterized in that: The first positioning member (14) comprises a threaded rod and a positioning steel ball located at the end of the threaded rod; the threaded rod has an inner cavity with an opening at one end, an elastic member is arranged in the inner cavity, the positioning steel ball is installed at the opening of the inner cavity and partially exposed from the inner cavity, and the positioning steel ball is connected to the threaded rod through the elastic member.

7. The drilling clamping device according to claim 2, characterized in that: The drilling clamping device also includes a positioning plug (3), which is connected to the side of the connecting portion (15) away from the workpiece (100) to be processed in the second direction, and the other end of the positioning plug (3) along the second direction is used to contact the machine tool drill bit (6).

8. The drilling clamping device according to claim 7, characterized in that: The drilling clamping device further comprises a second positioning member (2), wherein the second positioning member (2) is arranged on a side of the connecting portion (15) away from the workpiece (100) to be processed in the second direction; The second positioning member (2) is provided with a first plugging hole extending along the second direction, the connecting portion (15) is provided with a through positioning hole aligned with the first plugging hole, the first plugging hole and the positioning hole are coaxial with the machine tool drill bit (6), the positioning plug (3) passes through the first plugging hole and the positioning hole in sequence, and the machine tool drill bit (6) penetrates the positioning plug (3) from the second direction during processing and then drills a hole on the side of the workpiece (100) to be processed along the second direction.

9. The drilling clamping device according to claim 8, characterized in that: The connecting portion (15) is provided with a through positioning groove for accommodating the second positioning member (2), and the positioning hole is located in the positioning groove.

10. The drilling clamping device according to claim 7, characterized in that: The drilling clamping device further comprises a counter-top piece (4), the counter-top piece (4) being arranged between a machine tool top plate (5) of the machine tool and the fixed sleeve plate (1), the counter-top piece (4) being provided with a positioning cone surface on a side close to the machine tool top plate (5), the positioning cone surface shrinking in the direction of the machine tool top plate (5), the machine tool top plate (5) being provided with a center hole on a side close to the counter-top piece (4), the positioning cone surface being used to abut against the center hole; The counter-top piece (4) is provided with a through second plug hole, and one end of the positioning plug (3) is inserted into the second plug hole for contacting the machine tool drill bit (6).

Images