TWI389765B - Grinding assembly and a gringing element thereof - Google Patents

Description

Multifunctional engraving and grinding composite tool and tool head thereof

The invention relates to the field of hand tools, in particular to a multifunctional engraving and grinding composite tool which can reduce noise, cool down, prolong service life and can be used with a plurality of tool cutter heads.

According to the first A figure and the first B figure, the engraving and grinding composite tool used in combination with the woodworking knife engraving cutter head mainly comprises a carving knife 30, a casing 40, a front pole 50 and a rear rod 60, the front and rear rods 50, 60 are disposed in the casing 40, and a corresponding helical helical tooth surface 70 is formed on the contact faces of the front and rear rods 50, 60, wherein the rear rod 60 is relatively The front rod 50 is axially rotated, so that the front rod 50 is reciprocally displaced back and forth with respect to the housing 40 by the height difference of the two oblique tooth surfaces 70 for the purpose of engraving articles.

However, the above-mentioned socket portion is fixed to the engraving and grinding composite tool for holding the body transmission, and basically has the following problems:

1. Low expandability: the rod is used to hold the engraving knives, and the rods are driven inside the casing after driving the front rods by rotation, and are limited by the opening diameter limit of the front end of the front rod. The tool can only meet the tool head corresponding to the opening diameter of the chuck, and there is still room for improvement and breakthrough.

Second, high manufacturing cost: due to the front and rear rod linkage, the 1//2 arc spiral bevel teeth of the two oblique tooth faces are interlocked with each other, and the continuous two spiral bevel gear designs are bound to cause difficulty in processing and manufacturing. The improvement has led to an increase in the manufacturing cost of the engraved abrasive composite tool, which is not economical.

3. High noise and low life: the beveled teeth of the front and rear poles are designed to interlock with each other by the falling differential surface. When the falling differential surfaces are in mesh with each other, the impact is easy to contact due to the impact of the surface and the surface, resulting in the rotation noise of the woodworking carving knife. If it is too large, even if the surface of the falling surface faces the surface, if it is repeatedly rubbed or used for a long time, it will easily cause structural damage on the impact surface, thereby reducing the service life of the woodworking carving knife.

Fourth, the working temperature is high: before and after the engraving and grinding of the composite tool, the rod is prone to high temperature under the condition of long-term reciprocating friction and impact, and the temperature of the shell for the user to hold is unfavorable to use, which often causes trouble for the user. .

In view of this, it is a problem that the industry has urgently solved to solve the above problems, but it is still too late to solve. Accordingly, the present invention provides an innovative multi-function engraved abrasive composite tool as described in the detailed description below.

It is an object of the present invention to provide a multi-function engraved abrasive composite tool that has long-lasting use and can be used with a variety of tool bits.

In order to achieve the above object, the present invention adopts a tool head and a holding body. The holding body is provided with a transmission device, and one end of the transmission device is an exposed clamping portion, and the clamping portion can be driven by the transmission device. Rotating; the tool head comprises a casing, the inner opening is provided with a hole and an enlarged hole, and the two holes are connected with each other, and the size is different, the center system is not opposite, and the reciprocating shaft center is accommodated in the hole. The reciprocating shaft can move in a linear reciprocating manner to the bore, the front end of the shaft center is provided with a clamping portion, and the rear end is provided with an expanding member, the expanding member is located at the intersection of the bore and the enlarged hole, and the enlarged member Steel balls are provided at the center of the end face;

And a limiting hole is disposed longitudinally in the reciprocating axial center. When the reciprocating axial center is disposed in the housing, the limiting hole is provided with an abutting rod defining a reciprocating displacement range of the reciprocating shaft center, and the clamping portion has a collet on the outside of the casing, and an end nut for controlling the caliber of the collet, the collet can be inserted into the engraving knife, and when the engraving knife is inserted into the collet, the end nut is screwed and forced The two sides of the chuck are pressed toward the engraving tool to prevent detachment; the transmission shaft is provided in the enlarged hole content, and the Paling is sleeved in the middle of the transmission shaft, and the end surface of the contact piece of the front section is an inclined guide surface inclined in a single direction, The sleeve is provided with a sleeve portion exposing the housing, and the sleeve portion can be inserted into the clip portion, and the sleeve portion is also rotated when the clip portion is rotated.

The clamping portion of the transmission device is connected to the socket portion, and the other end is connected with a power supply device for providing kinetic energy, and the transmission device is rotated. When the engraving blade is in contact with the object, the reciprocating shaft core is subjected to the force of the engraving knife. The steel ball is shrunk into the casing to abut against the inclined guide surface, and the rotation of the transmission shaft drives the inclined guide surface to rotate, so that the reciprocating axis changes with the fluctuation of the inclined guide surface, and the reciprocating displacement is performed before and after, so that the engraving knife can be The engraving action is performed on the object; further, a control button for controlling the forward and reverse directions of the transmission device is provided on the grip body, so that the user can select the rotation direction of the engraving knife, and the sleeve portion can be freely clamped The part is inserted and removed, and the tool head with different engraving tools can be replaced.

In summary, the achievable effects of the present invention are as follows:

1. In the design structure of the present invention, the structure of the inclined guide surface and the steel ball is commonly accommodated in the casing, which not only greatly reduces the noise, but also minimizes the friction area of the reciprocating shaft and the drive shaft by using the steel ball. It not only reduces the temperature of the tool, increases the safety of the work, but also improves the service life of the tool head and the holding body.

2. The present invention installs the reciprocating shaft center and the transmission shaft in the housing, so that the housing structure can be disposed on various tool cutter heads, so that the multifunctional engraving and grinding composite tool of the present invention can simultaneously have multiple tools. The cutter head can be easily replaced with different cutter heads according to different creative states. The manufacturer can make a uniform process when manufacturing, and establish a modular production of engraving tools, thereby reducing the manufacturing cost and making the product mass-produced.

The invention effectively solves the conventional structure, and if different tool heads are to be used, the problem of different holding bodies needs to be exchanged, so that the user only needs to have a universal grip body structure, and is equipped with a reciprocating shaft center and a transmission. A variety of tool cutter heads can easily change different tool cutter heads; not only can reduce the purchase cost of consumers, but also reduce the inventory cost of the seller, damage after long-term use, or just change the structure of the tool head. The user's maintenance cost is greatly reduced, and the application performance of the multi-function engraving and grinding composite tool is greatly improved compared with the conventional structure.

The invention relates to a multi-functional engraving and polishing composite tool, and the technical means and the effect thereof used in connection with the above objects and features, please refer to the second and third figures first:

The first embodiment of the present invention is represented by a reciprocating engraving tool, which is formed by a tool head 1 and a holding body 2, which can be sleeved in a stackable and unloadable manner, and the rear end of the grip body 2 is The transmission tube 51 of a power supply device 5 is sleeved (please refer to the fifth figure) to drive the rotation of the transmission device 3 accommodated in the holding body 2. The front end of the transmission device 3 is provided with a rectangular groove-like clamping. The part 4 is used for the movable joint of the tool head 1 to synchronously rotate the drive shafts 15 which are respectively sleeved in the tool head 1. As for the transmission device 3 in the body 2, it is a common practice of the multi-function engraving and grinding composite tool. Knowing the structure, and not the main core of the improvement of the case, members are requested to refer to the relevant pre-cases on their own, forgive me for not describing them, and clarifying them first;

The main improvement of the core structure of this case lies in the tool head 1, which includes:

A casing 10 is a generally triangular pyramid-shaped hollow structure. The triangular pyramid-shaped casing 10 has a through hole 11 penetrating through the front end, and an enlarged hole 12 extending through the rear end, the hole 11 and the enlarged hole. 12 is in a connected relationship, and the aperture 11 and the enlarged aperture 12 are not only different in aperture size, but the center of the aperture is not at the same horizontal position;

A reciprocating shaft 13 is disposed in the bore 11 of the housing 10 and is reciprocally linearly movable relative to the bore 13 . The front end of the reciprocating shaft 13 is provided with a clamping portion 131. The clamping portion 131 is provided. And exposed to the outside of the front end of the casing 10, and can hold the tool knives, the drawing example is described by the engraving knives 20, and the tool knives with different working attributes can be movably arranged according to actual needs;

The rear end of the reciprocating shaft 13 is connected with an enlarged piece 132 at the enlarged hole 12, and abuts against the intersection of the hole 11 and the enlarged hole 12 to prevent the reciprocating shaft 13 from falling off the front end of the casing 10. , the cylindrical expansion member 132 is different from the end surface, and the center position is provided with a slightly protruding steel ball 133;

In addition, the reciprocating shaft 13 defines a long-shaped limiting hole 134 along the longitudinal direction for the insertion of abutting rod 14 , and the effect of the strip-shaped limiting hole 134 and the abutting rod 14 are combined. There are two, one of which is the reciprocating axial center 13 with respect to the reciprocating linear motion stroke limitation of the borehole 11, and the other is that when the reciprocating axial center 13 of the circular rod-shaped reciprocating shaft 13 is reciprocating linearly along the circular bore 11 , no rotation mode is generated. The clamping portion 131 at the front end of the reciprocating shaft 13 includes a collet 135 located outside the front end of the casing 10, and an end nut 136 for controlling the opening diameter of the collet 135. The engraving knife 20 inserted into the collet 135 is reached, and the quick assembly and unscrewing are performed.

A transmission shaft 15 is accommodated in the enlarged hole 12 in a passive in-situ rotation manner, and a Palin 16 is disposed through the middle portion to increase the smoothness of the rotation of the transmission shaft 15. The front portion of the transmission shaft 15 is formed to have a larger a cylindrical contact member having a center point of the columnar contact member and maintaining an eccentric relationship with a center point of the reciprocating shaft center 13 expansion member, and the contact member is inclined with respect to the reciprocating shaft center 13 at the end of the enlarged member 132 Cutting a slanting guide surface 151, the rear end of the transmission shaft 15 is provided with a sleeve portion 152 beyond the housing (the socket portion 152 is matched with the rectangular groove-like clamping portion 4, and the corresponding square column shape is adopted). The transmission shaft 15 is sleeved and coupled with the clamping portion 4 of the transmission device 3, so that the transmission shaft 15 can rotate synchronously with the transmission device 3;

In addition, since the hole 11 of the casing 10 and the center of the enlarged hole 12 are not located at the same horizontal position, the reciprocating shaft 13 and the transmission shaft 15 are arranged in an eccentric relationship, and the reciprocating shaft 13 of the reciprocating linear shaft 13 is reciprocated. When it is in contact with the inclined guide surface 151 of the transmission shaft 15, a large height and a low drop can be obtained, and the reciprocating shaft center 13 can obtain the maximum linear motion stroke.

For the separate engraving tools used for the above-mentioned mining activities, the assembly and use methods are as shown in the fourth and fifth figures. When using, firstly, the tool head 1 and the front end of the grip body 2 are sleeved to make the tool The rear end sleeve portion 152 of the first transmission shaft 15 and the front end clamping portion 4 of the internal transmission device 3 of the grip body 1 are interposed and coupled with each other, and the delivery tube 51 of the power supply device 5 of the motor embodiment is reset. The rear end of the main body 2 is inserted and coupled with each other, and the generated power source is driven by the power supply device 5, and the transmission device 3 is driven to rotate by the conveying pipe 51, so as to rotate the transmission shaft 15 of the sleeve;

Then, only when the engraving knives 20 that are sleeved at the front end of the tool head 1 are pressed against the workpiece, and the reciprocating shaft 13 is forced to be displaced backward, the steel balls 133 on the surface of the rear end expanding member 132 are connected to a power supply device 5 . The kinetic energy provided by the power supply device 5 is used to operate the transmission device 3. When the engraving blade 20 is in contact with an external object, the reciprocating shaft 13 is affected by the force of the engraving blade 20, and is contracted toward the housing 10. Moving, the steel ball 133 can be in contact with the inclined guide surface 151, and the inclined guide surface 151 is rotated by the rotation of the transmission shaft 15, so that the reciprocating axial center 13 changes with the fluctuation of the inclined guide surface 151. The reciprocating displacement can be performed back and forth, so that the engraving knife 20 can perform the engraving operation on the object.

In addition, referring to the sixth embodiment, it is a second embodiment of the present invention, that is, the multifunctional engraving and polishing composite tool of the present invention can also be a portable device, that is, the first embodiment will be disclosed. The external power supply device 5 is changed to be directly accommodated inside the holding body 2, so that the user can carry it with the user without the cumbersome carrying process of the external power supply device, and the working range of the length of the conveying pipe is limited. problem.

The multifunctional engraving and grinding composite tool of the invention, in particular, the driving shaft for driving the reciprocating axial linear motion, is arranged in the enlarged hole 12 of the tool head 1, and is designed to be advanced compared with the conventional transmission shaft. The advantages are: such as the grinding tool head, the saw blade tool head, the woodworking carving tool head, the planing tool head, or the needle tool head shown in the seventh and eighth figures, because the rear end enlarged hole directly accommodates the transmission shaft, The tool heads of the above various working attributes and sizes can drive the sleeve portion 152 of the drive shaft and the clamping portion 4 of the grip body to each other, so that the multifunctional gripping and polishing composite tool of the present invention has a single holding tool. That is, it can be used with more than four kinds of tool heads; if it is combined with the eighth figure, an extension tube 7 is installed on the clamping portion 4, and one end of the extension tube 7 is used to install a carving knife with different functions. In this way, the driving distance of the multifunctional engraving and polishing composite tool can be extended, so that the user can also have the effect of reciprocating operation by simply adding the extension tube 7 in the narrow operation space, and the invention is added. With sex.

The above description is only for the purpose of explaining the preferred embodiments of the present invention, and is not intended to limit the invention in any way. Changes are still to be included in the scope of the invention as intended.

Conventional structure:

30. . . Carving knife

40. . . case

50. . . Front pole

60. . . Rear rod

70. . . Helical surface

Structure of the invention

1. . . Tool head

2. . . Holding the body

3. . . transmission

4. . . Clamping part

5. . . Power supply unit

51. . . Duct

7. . . Extension tube

10. . . case

11. . . Hole

12. . . Enlarge hole

13. . . Reciprocating shaft

131. . . Grip

132. . . Expansion piece

133. . . Steel ball

134. . . Limit hole

135. . . Chuck

136. . . End nut

14. . . Retaining rod

15. . . transmission shaft

151. . . Oblique guide

152. . . Socket

16. . . Palin

20. . . Carving knife

The first A diagram is an exploded view of the conventional structure.

The first B is a partial cross-sectional side view of the conventional structure.

The second drawing is an exploded view of the present invention.

The third figure is a cross-sectional view of the present invention.

The fourth figure is an action diagram of the present invention.

The fifth figure is a schematic diagram of the connection of the kinetic energy device of the present invention.

Figure 6 is a cross-sectional view showing a second embodiment of the present invention.

The seventh figure is a schematic diagram of the installation of the present invention and various tool bits.

The eighth figure is a schematic diagram (2) of the installation of the present invention and various tool heads, and the extension tube is used as a connecting device.

1. . . Tool head

2. . . Holding the body

3. . . transmission

4. . . Clamping part

11. . . Hole

10. . . case

13. . . Reciprocating shaft

12. . . Enlarge hole

132. . . Expansion piece

131. . . Grip

134. . . Limit hole

133. . . Steel ball

136. . . End nut

135. . . Chuck

15. . . transmission shaft

14. . . Retaining rod

152. . . Socket

151. . . Oblique guide

20. . . Carving knife

16. . . Palin

Claims (12)

The utility model relates to a tool head of a multifunctional engraving and grinding composite tool, the tool head comprises: a casing, a through hole extending through the front end, and an enlarged hole penetrating through the rear end, and the hole is connected with the enlarged hole; The shaft center is accommodated in the bore in a linear reciprocating manner, and the front end of the shaft center is provided with a clamping portion located outside the front end of the housing, and the rear end of the shaft center is provided with an expanding member, and the expanding member is located at the enlarged hole and the capacity The hole is at the intersection, and the surface of the enlarged part is provided with a steel ball; a transmission shaft is accommodated in the transmission shaft of the enlarged hole, wherein the section is provided with a Palin, the contact end of the front section is provided with an inclined guide surface, and the rear section is provided with an inclined guide surface, Exceeding the sleeve of the housing; whereby the reciprocating shaft is coupled to the drive shaft and fixed in the housing. The tool head of the multifunctional engraving and grinding composite tool according to claim 1, wherein the clamping portion comprises a collet outside the casing, and an end nut for controlling the size of the collet. The tool head of the multifunctional engraving and grinding composite tool according to claim 1, wherein the housing has a tapered structure, and the hole and the enlarged hole are different in size and the center line is not opposite. The tool head of the multi-function engraving and grinding composite tool according to claim 1, wherein the reciprocating shaft has a long strip-shaped limiting hole longitudinally, and when the reciprocating shaft is disposed in the housing, the limiting hole can be An abutting rod is provided to define a reciprocating range of the reciprocating shaft. The tool head of the multifunctional engraving and grinding composite tool according to claim 2, wherein the chuck is capable of inserting a carving knife, and the engraving knife is first inserted into the end nut before the engraving knife is inserted into the collet. After the engraving knife is inserted into the collet, the end nut can be tightened by the screwing force to the engraving knife on both sides of the collet to prevent the engraving knife from coming off. The tool head of the multifunctional engraving and grinding composite tool according to claim 1, wherein the steel ball is disposed at a center of the end surface of the enlarged member, and the steel ball can abut the side edge of the inclined guide surface. The utility model relates to a multifunctional engraving and grinding composite tool, which comprises: a casing, a through hole extending through the front end and an enlarged hole penetrating through the rear end; the hole is enlarged and connected with the enlarged hole; and a reciprocating shaft core is The linear reciprocating movement is accommodated in the bore hole, and the front end of the shaft center is provided with a clamping portion located outside the front end of the housing, and the rear end of the shaft center is provided with an expanding member, and the expanding member is located at the intersection of the enlarged hole and the bore hole, and The surface of the enlarged part is provided with a steel ball; a transmission shaft is accommodated in the transmission shaft of the enlarged hole, wherein the section sleeve is provided with a Palin, the contact end of the front section is provided with an inclined guide surface, and the rear section is provided with a sleeve beyond the casing. a transmission device, the transmission device is provided with a clamping portion at the front end, the clamping portion can be sleeved with the socket portion; a holding body is sleeved outside the transmission device. The multifunctional engraving and grinding composite tool according to claim 7, wherein the reciprocating shaft has a longitudinally-shaped limiting hole longitudinally disposed, and the limiting hole is provided when the reciprocating shaft is disposed in the housing. The abutting rod is disposed to define a reciprocating range of the reciprocating shaft; the reciprocating shaft clamping portion includes a collet located outside the casing, and an end nut for controlling the size of the collet. The multi-function engraving and grinding composite tool according to claim 8, wherein the chuck is capable of inserting a carving knife, and the engraving knife is first inserted into the end nut before the engraving knife is inserted into the collet, the end screw After the cap is inserted into the collet, the clip on both sides of the collet can be tightened to the engraving tool by screwing and pressing to prevent the engraving knife from coming off. The multifunctional engraving and grinding composite tool according to claim 7, wherein the casing has a tapered structure, and the hole and the enlarged hole are different in size and the center line is not opposite. The multi-function engraved abrasive composite tool according to claim 7, wherein the steel ball is disposed at a center of the end surface of the enlarged member, and the steel ball can abut the side edge of the inclined guide surface. The multifunctional engraving and polishing composite tool according to claim 7, wherein the hole is externally connected with a connecting member, the connecting member is an extension tube, one end of which is sleeved with the clamping portion, and the other end is different from the various types. The tool bits are joined.