TWM528811U - Cutting tool holding device - Google Patents

Description

Tool holder

The present invention relates to a tool holder, and more particularly to a tool holder for mounting on a road planer, various rotary drilling machines or grinding tools.

The tool holder is used to hold the tool and is installed on the machine for treating the surface roughness of the road, such as a planing rig, for surface roughness treatment of road surface scraping, crushing, drilling, etc., or for drilling minerals.

The conventional tool holder includes a base and a tool holder. Taking a road planer as an example, a plurality of bases are designed to be arranged around the outer circumference of the roller of the road planer, and the tool holder is used for receiving tools and tools. The seat is locked to the base by a locking component. When the cutter is installed in the tool holder, it needs to form a tangential angle with the base, so as to continuously apply drilling and planing work to the workpiece (such as cement or asphalt material of road pavement) with a large number of tools when the roller rotates. Therefore, when the road planing rig is processed, the tool is used to continuously drill the road surface. With the rotation of the roller of the road planing rig, the road surface is applied with the tool that has been drilled into the ground. The action, under the continuous and a large number of operations, achieves the goal of completely removing the road surface.

However, since the workpiece (for example, road surface) usually has a hard material structure, the cutters in the past are affected by the reaction force generated by the road surface, resulting in damage and cracking of the cutter; therefore, the service life of the conventional tool is rather limited. In addition, when the assembly relationship between the tool holder and the base is not stable enough, the tool seat and the base will frequently collide with each other due to the aforementioned reaction force, thereby accelerating the loss, resulting in a shortened service life of the tool holder and the base. Significantly increase the cost of tool replacement and maintenance.

Therefore, how to strengthen the stability of the assembly between the base and the tool holder, so as to increase the load value of the base and the tool holder against the reaction force, thereby prolonging the service life of the base and the tool holder and reducing the cost of replacement and maintenance. One of the goals that the industry continues to pursue.

In addition, when the road planing rig is actually performing road surface shaving, a large amount of road waste (mud, sand, cement or asphalt) will be attached to the front of the tool due to the high pressure, and the tool must be continuously forced to drill on the road surface. However, the above-mentioned debris attached to the front of the tool will cause dry resistance, which will reduce the working efficiency of the road planer and waste energy. It also requires the operator to clean and inspect each tool frequently. This work must be frequent. The problem of suspending waiting for cleaning is not only labor intensive, but also wastes working time. Therefore, the aforementioned problems are also the goal of the industry to continuously pursue improvement.

One of the purposes of this creation is to provide a tool holder that combines a more stable and more resistant folding effect. The tool holder has an arc receiving hole in the base, and the clip seat is sleeved into the circular arc receiving hole with complementary shapes by a storage arc column. Thereby, the design in which the circular arc column and the circular arc receiving hole are combined can shift the center of gravity and be more resistant to folding. In addition, the storage arc column and the arc receiving hole surface have a larger contact area to avoid the rotation of the clamping seat, further strengthen the stability of the base and the clamping seat assembly, and improve the load of the base and the clamping seat against the reaction force. The value, in turn, extends the life of the base and the holder and reduces the cost of replacement and maintenance.

Another object of the present invention is to provide a tool holder that achieves a fast chip removal effect. In this creation, a guide block is protruded from the corresponding holder on the base. The design of the flow guiding block can achieve a fast chip removal effect.

Another object of the present invention is to provide a tool holder with high stability. The present invention is provided with a fitting protrusion on the base, and the clamping seat has a fitting concave, and the fitting recess is detachably embedded in the fitting convex. The use of the fitting concave and the fitting convex assembly and the positioning member to strengthen the pressing design can strengthen the stability of the base and the clamping seat assembly, which can increase the load value of the base and the clamping seat against the reaction force, thereby extending the base. The service life of the seat and the clamp seat and the cost of replacement and maintenance.

According to one embodiment of the present invention, a tool holder is provided for holding a tool. The tool holder includes a base, a clamping seat and a positioning member. The base has a front tilting wall, a rear tilting wall and a positioning hole, the front tilting wall defines a fitting convex, the rear tilting wall is connected with the front tilting wall, the rear tilting wall defines a circular arc receiving hole, and the positioning hole penetrates and communicates Arc storage hole. The clamping seat set is disposed on the base for accommodating the cutter, the clamping seat has a body, a storage arc column and a guiding block, the body has a first abutting portion and a second abutting portion, the first abutting portion The first abutting surface has a fitting recess, the first abutting surface abuts against the forward tilting wall, the fitting recess is detachably embedded with the fitting protrusion, and the second abutting portion has a second abutting surface abutting The wall is tilted, and the storage arc column is extended by the body, and the storage arc column is correspondingly inserted into the arc receiving hole. The corresponding positioning hole for accommodating the circular arc column is provided with a limiting slot, and the other guiding block is corresponding to the protruding tool. The positioning member is positioned in the positioning hole, and the positioning member abuts the limiting groove.

According to the above-mentioned tool holder, the cross-sectional shape of the circular arc column and the circular arc receiving hole may be in the shape of a teardrop or a heart. In addition, a rounded guide angle may be provided at one end of the storage arc column, so that the storage arcuate column can be smoothly combined to the arc storage hole.

The aforementioned flow guiding block may have at least one inclined chip surface of the corresponding tool. If the flow guiding block has a plurality of inclined chip faces that are attenuated from the inside to the outside, the shape of the flow guiding block is triangular. The shape of the fitting concave and the fitting convex shape may be substantially triangular.

According to the above-mentioned tool holder, the cross-sectional shape of the storage circular arc column is a heart shape or a teardrop shape, and may include at least two side surfaces, and the cross-sectional shape of the circular arc receiving hole is also a heart shape or a teardrop shape, and corresponds to the foregoing Two sides are provided with two abutting surfaces, thereby offsetting the center of gravity of the mechanism and increasing the contact abutting area, thereby improving the folding resistance.

According to another embodiment of the present invention, there is provided a tool holder, a tool holder for holding a tool, the tool holder comprising a base, a holder and a positioning member. The base has a front tilting wall, a rear tilting wall and a positioning hole, the rear tilting wall is connected with the front tilting wall, the rear tilting wall defines a circular arc receiving hole, and the positioning hole penetrates the connecting circular arc receiving hole, and the circular arc receiving hole There are two toppings. The clamping seat set is disposed on the base for accommodating the cutter, the clamping seat has a body, a storage arc column and a guiding block, the body has a first abutting portion and a second abutting portion, the first abutting portion The first abutting surface has a first abutting surface, and the second abutting surface has a second abutting surface against the rear tilting wall, and the receiving circular arc column is extended by the body, and the receiving circle is received. The arc column is correspondingly inserted into the arc receiving hole, and the corresponding arc column is accommodated. The positioning hole is provided with a limiting slot, the receiving circular arc column comprises at least two side faces, and the two side faces correspond to the top two to the top surface, and the other guiding block is corresponding to the tool protruding. The positioning member is positioned in the positioning hole, and the positioning member abuts the limiting groove.

According to the above-mentioned tool holder, the base can have two centering inner faces corresponding to the inclined adduction, and the clamping seat can have two outer centerings which are inclined and convex, and the inner side of the two centerings are fixed to the outer side. Produces the dual effect of stable bonding and centering.

100‧‧‧Tool holder

110‧‧‧Base

1101‧‧‧ centering inside

112‧‧‧ forward wall

113‧‧‧ fitting convex

114‧‧‧Back wall

115‧‧‧Arc storage hole

1151‧‧‧ to the top

116‧‧‧Positioning holes

118‧‧‧First push hole

120‧‧‧Clip seat

1201‧‧‧ Centering outside

130‧‧‧ Ontology

131‧‧ ‧ diversion block

1311‧‧‧Sloping chip surface

132‧‧‧First Abutment

133‧‧‧first abutment

135‧‧‧ fitting recess

136‧‧‧second abutment

137‧‧‧second abutment

139‧‧‧ lap joint

139a‧‧‧Clamping hole

140‧‧‧Storage arc column

1401‧‧‧ side

1402‧‧‧Smooth lead angle

142‧‧‧ Limit slot

150‧‧‧ positioning parts

151‧‧‧ latch

152‧‧‧ bolt

A‧‧‧ paving rig

B‧‧‧Tools

C‧‧‧ chips

The above and other objects, features, advantages and embodiments of the present invention can be more clearly understood. The description of the drawings is as follows: FIG. 1 is a perspective view of a tool holder according to an embodiment of the present invention. Figure 2 is a perspective exploded view of the tool holder of Figure 1; Figure 3 is a side view of the holder in Figure 1; and Figure 4 is a view of the holder of Figure 1. 5 is a front view of the holder of FIG. 1; FIG. 6 is a sectional view showing the combination of the tool holder of FIG. 1; and FIG. 7 is a schematic view showing the operation of the road planing drilling machine. And Fig. 8 is a schematic view showing the chip removal of the flow guiding block when the road planing drilling machine is operated in Fig. 7.

Please refer to FIG. 1 to FIG. 6 . FIG. 1 is a perspective assembled view of a tool holder 100 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the tool holder 100. 3, 4, and 5 respectively show a side view, a rear view, and a front view of the holder 120, and a sectional view of the tool holder 100 is shown in FIG. The tool holder 100 includes a base 110, a clamp 120, and a positioning member 150. The tool holder 100 is used to hold the tool B (see Figure 6). The tool holder 100 includes a base 110, a clamp 120, and a positioning member 150. The clamping seat 120 is disposed on the base 110, and the positioning member 150 is disposed in the base 110 to press the clamping seat 120. The tool holder 100 positions the clamping tool B at a preset angle on the base 110.

The base 110 includes a forward tilting wall 112, a rearward tilting wall 114, a positioning hole 116, and a first pusher hole 118. The front tilting wall 112 is connected to the rear tilting wall 114, the front tilting wall 112 is provided with a triangular block-shaped fitting protrusion 113, and the rear tilting wall 114 defines a circular arc receiving hole 115, and the cross-sectional shape of the circular arc receiving hole 115 is The heart shape allows the lower edge of the circular arc receiving hole 115 to have two abutting surfaces 1151, and the central axis of the circular arc receiving hole 115 (not shown) is parallel to the extending direction of the fitting projection 113. The positioning hole 116 communicates with the circular arc receiving hole 115 through one side of the base 110. The central axis of the positioning hole 116 (not shown) is perpendicular to the extending direction of the circular arc receiving hole 115. The first pusher hole 118 is opened on the other side of the base 110, and the first pusher hole 118 communicates with the circular arc receiving hole 115. The base 110 has two centering inner faces 1101 corresponding to the first pusher holes 118.

The holder 120 is disposed on the base 110 for receiving the cutter B. The holder 120 includes a body 130 and a receiving circular arc column 140.

The main body 130 includes a first abutting portion 132, a second abutting portion 136 and a guiding block 131. The first abutting portion 132 includes a first abutting surface 133 and a fitting recess 135. The first abutting surface 133 abuts. The front tilting wall 112 and the fitting recess 135 are detachably fitted into the fitting projection 113. The second abutting portion 136 includes a second abutting surface 137 and a lap surface 139. The second abutting surface 137 is a flat surface that can be fitted against the back inclined wall 114, and the overlapping surface 139 is disposed at the second abutting portion 136. On the other side of the facing surface 137, a clamping hole 139a is formed in the overlapping surface 139, and the clamping hole 139a is used to clamp the cutter B (see Fig. 6). The clamping seat 120 has a two-centered outer surface 1201 which is inclined and convex. The two centering outer surfaces 1201 correspond to the two centering inner surfaces 1101 of the pedestal 110 which are inclined and received, and the two centering inner surfaces 1101 are abutted against the two centering surfaces. 1201 produces a stable centering combination. The other guiding block 131 is protruded corresponding to the tool B, and the guiding block 131 has a plurality of inclined chip faces 1311 corresponding to the tool B which are gradually reduced from the inside to the outside, and the shape of the guiding block 131 is triangular prism.

The storage circular arc column 140 is extended and protruded from the main body 130, and is correspondingly inserted into the circular arc receiving hole 115. The circular arc receiving hole 115 and the storage circular arc column 140 are both shaped and complementary in a cross-sectional shape, so that the storage circular arc column 140 is nested. When the circular arc accommodates the hole 115, it does not move with respect to the base 110. The corresponding positioning hole 116 of the storage arc column 140 is provided with a limiting groove 142. The lower edge of the heart-shaped storage circular arc column 140 includes at least two side faces 1401, and the two side faces 1401 correspond to the top two abutting top surface 1151. In addition, the end portion of the storage arc column 140 is surrounded by a rounded guide angle 1402, thereby facilitating the user to quickly operate the storage arc column 140 to smoothly enter the arc receiving hole 115.

The positioning member 150 is a combination of the bolt 151 and a bolt 152 which can be expanded and contracted (this is a conventional technique, which will not be described here), and the positioning member 150 The pin 151 is stably positioned and positioned in the positioning hole 116 of the base 110, and the positioning member 150 abuts against the limiting groove 142 of the circular arc column 140.

Referring to FIG. 7 and FIG. 8 again, FIG. 7 is a schematic diagram showing the operation of the road surface drilling rig A; and FIG. 8 is a schematic view showing the chip removal of the flow guiding block 131 when the road surface drilling rig A is operated. Since the arc-shaped receiving hole 115 and the storage arc-shaped column 140 are both heart-shaped and complementary in cross-sectional shape, the lower edge of the heart-shaped storage circular arc column 140 includes at least two side faces 1401, and the two side faces 1401 correspond to the top two Top surface 1151. Thereby, the center of gravity of the tool holder 100 can be moved back to the more stable base 110 portion, and the two sides 1401 correspondingly abut the top surface 1151 to effectively increase the contact area, thereby avoiding the leverage effect and reducing The small reaction force makes the holder 120 less susceptible to sloshing and breaking.

From the above, it can be seen that the design of the circular arc column 140 and the circular arc receiving hole 115 can prevent the clamping seat 120 from rotating, and the fitting concave 135 and the fitting convex 113 are assembled and the two centering outer faces 1201 are corresponding. The design of the inner surface 1101 of the inner center is fixed with the positioning member 150 to fix the base 110 and the clamping base 120. The present invention can enhance the stability of the assembly of the base 110 and the clamping base 120, and improve the reaction force of the base 110 and the clamping seat 120. The load value further extends the service life of the base 110 and the clamp 120 and reduces the cost of replacement and maintenance.

Referring to FIG. 8 again, the flow guiding block 131 is correspondingly protruded from the tool B, and the flow guiding block 131 has a plurality of inclined chip discharging faces 1311 corresponding to the tool B which are gradually reduced from the inside to the outside, and the shape of the guiding block 131 is substantially In the shape of a triangular column, when the tool holder 100 is installed on the road surface drilling rig A which processes the surface roughness of the road, the tool B (refer to Fig. 6) processes the road surface to generate a large amount of chip removal C, and the high-speed accumulated chip discharge. C will flow along the plurality of inclined chip faces 1311 of the flow guiding block 131 Discharge, this design not only avoids the accumulation of chip C, causing work failures and energy consumption problems, but also can reduce the cost of maintenance.

According to the above embodiment, the design of the circular arc column and the arc receiving hole can prevent the rotation of the clamping seat, and the fitting concave and the fitting convex assembly can lock the connection between the base and the clamping seat. And through the diversion block diversion to discharge the cumulative chip evacuation; another centering design corresponding to the inner center of the centering, can be centered during assembly and strengthen the stability of the base and the clamp joint. The improved design described above can increase the load value of the base and the clamp for the reaction force, thereby prolonging the service life of the base and the clamp and reducing the cost of replacement and maintenance.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and anyone skilled in the art can make various changes and refinements without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application attached.

100‧‧‧Tool holder

110‧‧‧Base

1101‧‧‧ centering inside

112‧‧‧ forward wall

113‧‧‧ fitting convex

114‧‧‧Back wall

115‧‧‧Arc storage hole

1151‧‧‧ to the top

116‧‧‧Positioning holes

118‧‧‧First push hole

120‧‧‧Clip seat

1201‧‧‧ Centering outside

130‧‧‧ Ontology

131‧‧ ‧ diversion block

1311‧‧‧Sloping chip surface

132‧‧‧First Abutment

133‧‧‧first abutment

135‧‧‧ fitting recess

136‧‧‧second abutment

137‧‧‧second abutment

139‧‧‧ lap joint

139a‧‧‧Clamping hole

140‧‧‧Storage arc column

1401‧‧‧ side

1402‧‧‧Smooth lead angle

142‧‧‧ Limit slot

150‧‧‧ positioning parts

151‧‧‧ latch

152‧‧‧ bolt

Claims (16)

A tool holder for holding a tool, the tool holder comprising: a base having a forward tilting wall, a rear tilting wall and a positioning hole, wherein the front tilting wall defines a fitting protrusion The rear tilting wall is connected to the front tilting wall, the rear tilting wall defines a circular arc receiving hole, and the positioning hole penetrates and communicates with the circular arc receiving hole; a clamping seat is disposed on the base for receiving the cutter, The clamping seat has a body, a receiving circular arc column and a guiding block, the body has a first abutting portion and a second abutting portion, the first abutting portion has a first abutting surface and a a fitting recess, the first abutting surface abuts against the forward tilting wall, the fitting recess is detachably embedded in the fitting protrusion, and the second abutting portion has a second abutting surface abutting the rear tilting wall, The storage circular arc column is extended by the main body, and the storage circular arc column is correspondingly inserted into the circular arc receiving hole, and the corresponding positioning hole of the storage circular arc column is provided with a limiting groove, and the guiding flow block is opposite to the guiding hole The tool should be convexly disposed; and a positioning member is positioned in the positioning hole, and the positioning member abuts the limiting groove. The tool holder according to the first aspect of the invention, wherein the storage circular arc column and the circular arc receiving hole have a cross-sectional shape. The tool holder according to claim 1, wherein the storage circular arc column and the circular arc receiving hole have a cross-sectional shape that is heart-shaped. The tool holder of claim 1, wherein one end of the storage arc column is provided with a rounded guide angle. The tool holder of claim 1, wherein the flow guiding block has at least one inclined chip surface corresponding to the tool. The tool holder of claim 5, wherein the flow guiding block has a plurality of inclined chip faces that are attenuated from the inside to the outside. The tool holder of claim 6, wherein the flow guiding block has a triangular prism shape. The tool holder of claim 1, wherein the fitting recess and the fitting protrusion have a triangular shape. A tool holder for holding a tool, the tool holder comprising: a base having a forward tilting wall, a rear tilting wall and a positioning hole, the rear tilting wall being connected to the forward tilting wall The rear inclined wall defines a circular arc receiving hole, and the positioning hole penetrates and communicates with the circular arc receiving hole, wherein the circular arc receiving hole is provided with two abutting surfaces; and a clamping seat is disposed on the base for receiving The tool holder has a body, a storage arcuate column and a flow guiding block, the body has a first abutting portion and a second abutting portion, the first abutting portion has a first abutting portion The first abutting surface abuts against the forward tilting wall, and the second abutting portion has a second abutting surface against the backward tilting a storage wall member, wherein the storage circular arc column is extended and protruded from the main body, and the storage circular arc column is correspondingly inserted into the circular arc receiving hole, and the corresponding positioning hole of the storage circular arc column is provided with a limiting groove, the storage arc The column includes at least two sides, and the two sides correspondingly abut the top surface, and the flow guiding block is corresponding to the tool protruding; and a positioning member is positioned in the positioning hole, and the positioning member is Top the limit slot. The tool holder of claim 9, wherein the base has two centering inner faces corresponding to the inclined adduction, and the clamping seat has two outer centerings that are inclined outwardly convex, the two centering The inner surface is against the top of the two centering. The tool holder according to claim 9, wherein the storage circular arc column and the circular arc receiving hole have a cross-sectional shape in a teardrop shape. The tool holder according to claim 9, wherein the storage circular arc column and the circular arc receiving hole have a cross-sectional shape in a heart shape. The tool holder of claim 9, wherein one end of the receiving circular arc column is provided with a rounded guide angle. The tool holder of claim 9, wherein the flow guiding block has at least one inclined chip surface corresponding to the tool. The tool holder of claim 14, wherein the flow guiding block has a plurality of inclined chip faces that are progressively lowered from the inside to the outside. The tool holder of claim 15, wherein the flow guiding block has a triangular prism shape.