Tool rest for machining center

Abstract

The utility model provides a tool rest for a machining center, and relates to the technical field of tool rests, the tool rest comprises a tool rest driving seat, a first tool rest and a positioning cover plate, a second tool rest and a third tool rest are arranged between the first tool rest and the positioning cover plate, the positioning cover plate is integrally formed above the third tool rest, the second tool rest is fixed on the first tool rest in a butt joint mode, and the third tool rest is fixed on the second tool rest. The third tool rest is fixed to the second tool rest in a butt joint mode, the edges of the upper ends of the second tool rest and the third tool rest extend to be provided with positioning plates for positioning a cover plate size box body, mounting holes are formed in the positions, corresponding to the bolt fixing pieces, of the positioning plates, and tools arranged between the positioning plates and on the two sides are fixed by connecting the bolt fixing pieces with the mounting holes. According to the multi-layer stacked tool rest, by designing the multi-layer stacked tool rest structure, the containing capacity of tools is remarkably increased, and compared with a traditional triangular tool rest, a traditional square tool rest and a traditional turret type tool rest, the multi-layer stacked tool rest can contain more tools, so that the diversified tool requirements when complex workpieces are machined are better met.

Description

Technical Field

[0001] The utility model relates to the technical field of tool holders, in particular to a tool holder for a machining center. Background Art

[0002] The indexing turret is an important component in a CNC lathe. It is mainly used to hold various tools with different uses and realizes the automatic tool change operation of the machine tool through the rotation and indexing of the turret head.

[0003] The automatic indexing tool holders include a triangular tool holder for holding three tools, a square tool holder for holding four tools, a turret tool holder for holding multiple tools, etc. According to the indexing drive device, they can be further divided into: hydraulic, pneumatic, electrical and mechanical types.

[0004] The main functions of the automatic indexing turret of a CNC lathe are as follows:

[0005] Realize multi-station cutting: By rotating the tool holder, multiple tools can be fixed at different stations to realize various cutting operations, greatly improving the processing efficiency and production capacity.

[0006] Automatic tool change: Without manual intervention, the tool holder will automatically rotate to send the next tool to the working position, realizing fast tool change, saving labor costs and improving production efficiency.

[0007] Realize multi-angle machining: By rotating the tool holder, the relative position between the tool and the workpiece can be changed to realize cutting at different angles, meeting the processing requirements of complex workpieces and improving the processing quality.

[0008] Although the indexing turret of the current machining center can realize the automatic tool change operation through the rotation of the turret head, when processing workpieces with complex structures and diverse tool requirements, the limitation of the number of tools has become an obvious bottleneck. Traditional triangular tool holders, square tool holders and turret tool holders, although different in the number of tools they can hold, are usually limited by their design structures and working principles and cannot accommodate enough tools to meet the processing requirements of complex workpieces. Therefore, we propose a tool holder for a machining center. Summary of the Utility Model

[0009] The purpose of the utility model is to provide a tool holder for a machining center to solve the above-mentioned deficiencies in the technology.

[0010] To achieve the above purpose, the present invention provides the following technical solutions:

[0011] A tool rest for a machining center, comprising a tool rest drive base, a first tool rest and a positioning cover plate. The first tool rest is rotatably connected to the top end of the tool rest drive base. The positioning cover plate is threadedly connected along the edge with several groups of bolt fixing members penetrating through both ends. A second tool rest and a third tool rest are provided between the first tool rest and the positioning cover plate, and the positioning cover plate is integrally formed above the third tool rest. The second tool rest is butt-jointed and fixed to the first tool rest, and the third tool rest is butt-jointed and fixed to the second tool rest. The upper edge of the first tool rest and the third tool rest extends with a positioning plate having the same size as the positioning cover plate. Installation holes are provided at positions corresponding to the bolt fixing members on the positioning plate, so that the tools placed between and on both sides of the positioning plates are fixed by connecting the installation holes through the bolt fixing members.

[0012] Further, a transmission device is installed inside the tool rest drive base and is driven by a motor at the outer motor mounting port, thereby driving the first tool rest installed on the top end of the tool rest drive base and connected to the transmission device to rotate.

[0013] Further, a support bottom plate having the same size as the positioning cover plate extends from the bottom edge of the first tool rest, and fixing holes corresponding to the installation holes are provided.

[0014] Further, cross-shaped protrusions are provided at the top ends of the first tool rest and the second tool rest, and cross-shaped slots adapted to the cross-shaped protrusions are respectively provided at the bottoms of the second tool rest and the third tool rest. Thus, the adjacent second tool rest is butted against the upper end face of the first tool rest, and the third tool rest is butted against the upper end face of the second tool rest.

[0015] Further, the protruding ends in the cross-shaped slots respectively penetrate through the second tool rest and the third tool rest to the outer wall and are provided with first threaded grooves. Second threaded grooves are provided at the protruding ends of the cross-shaped protrusions corresponding to the first threaded grooves. The adjacent tool rests are fixed by bolts fixing the first threaded grooves and the second threaded grooves.

[0016] Further, clamping protrusions are provided around the outer sides of the first tool rest, the second tool rest and the third tool rest for the tool holder to be snapped in.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. By designing a multi-layer stacked tool rest structure (i.e., the first tool rest, the second tool rest and the third tool rest), the present utility model significantly increases the tool accommodation capacity. Compared with traditional triangular tool rests, square tool rests and turret tool rests, it can accommodate more tools, thus better meeting the diverse tool requirements when machining complex workpieces.

[0019] 2. Since more tools are accommodated, the machining center can continuously perform more cutting operations without frequently replacing the tool rest or tools, thereby greatly reducing the downtime and improving the machining efficiency.

[0020] 3. Through the combined design of bolt fasteners, mounting holes, and positioning plates, the cutting tools can be conveniently installed between and on both sides of the positioning plates and uniformly fixed by bolts. Based on the previous design, while clamping and positioning the cutting tools on each layer, this design makes the installation and replacement of the cutting tools simple and fast, further improving work efficiency.

[0021] 4. The multi-layer stacked tool holder structure allows the cutting tools to be arranged on multiple different planes, thereby increasing the relative position change between the cutting tools and the workpiece, enabling the machining center to more flexibly meet the machining requirements for different angles and complex shapes.

[0022] 5. Based on the design of the cross-shaped bumps and cross-shaped slots between the first tool holder, the second tool holder, and the third tool holder, and by connecting the first threaded groove and the second threaded groove with bolts, the tool holder structure is connected to ensure the stability and firmness of the tool holder structure, providing support for the expansion of the cutting tools. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of a tool holder for a machining center provided by the present utility model;

[0024] Figure 2 It is a schematic diagram of the split structure of the first tool holder and the second tool holder of a tool holder for a machining center provided by the present utility model;

[0025] Figure 3 It is a bottom anatomical view of the second tool holder and the third tool holder of a tool holder for a machining center provided by the present utility model;

[0026] Figure 4 It is a schematic diagram of the tool holder drive seat structure of a tool holder for a machining center provided by the present utility model.

[0027] Legend: 1. Tool holder drive seat; 101. Motor mounting port; 2. First tool holder; 3. Positioning cover plate; 31. Bolt fastener; 4. Second tool holder; 5. Third tool holder; 6. Positioning plate; 7. Mounting hole; 8. Support bottom plate; 9. Fixing hole; 10. Cross-shaped bump; 11. Cross-shaped slot; 12. First threaded groove; 13. Second threaded groove; 14. Clamping protrusion. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] To facilitate the understanding of the present utility model, the following will provide a more comprehensive description of the present utility model with reference to the relevant content. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Embodiment 1

[0033] As Figures 1-4 shown, the present utility model provides a technical solution: a tool rest for a machining center, including a tool rest driving seat 1, a first tool rest 2 and a positioning cover plate 3. The first tool rest 2 is rotatably connected to the top of the tool rest driving seat 1. The positioning cover plate 3 is threadedly connected along the edge with several groups of bolt fixing members 31 penetrating through both ends. A second tool rest 4 and a third tool rest 5 are provided between the first tool rest 2 and the positioning cover plate 3, and the positioning cover plate 3 is integrally formed above the third tool rest 5. The second tool rest 4 is butt-joined and fixed to the first tool rest 2, and the third tool rest 5 is butt-joined and fixed to the second tool rest 4. And the upper edge of the first tool rest 2 and the third tool rest 5 extends to be provided with a positioning plate 6 having the same size as the positioning cover plate 3. Installation holes 7 are provided at the positions corresponding to the bolt fixing members 31 on the positioning plate 6, so that the cutting tools placed between and on both sides of the positioning plates 6 are fixed by connecting the bolt fixing members 31 to the installation holes 7.

[0034] It should be noted that the tool rest driving seat 1 is installed on the adjusting device of the machining center. Currently, a multi-axis adjusting driving mechanism is adopted, and a lifting device also needs to be installed at the bottom of the tool rest driving seat to adjust the height of the tool rest driving seat.

[0035] Embodiment 2

[0036] As Figures 1-4As shown in the figure, a transmission device is installed inside the tool rest driving seat 1. The transmission mechanism is a worm and worm gear mechanism, and is driven by a motor installed at the outer motor mounting port 101. Then, when the motor starts, the first tool rest 2 installed at the top of the tool rest driving seat 1 rotates.

[0037] A support bottom plate 8 corresponding to the positioning cover plate 3 in size is provided at the bottom edge of the first tool rest 2, and fixing holes 9 are provided corresponding to the mounting holes 7.

[0038] Cross bumps 10 are provided at the tops of both the first tool rest 2 and the second tool rest 4, and matching cross slots 11 are provided at the bottoms of the second tool rest 4 and the third tool rest 5 corresponding to the cross bumps 10. Then, the adjacent second tool rest 4 is docked to the upper end surface of the first tool rest 2, and the third tool rest 5 is docked to the upper end surface of the second tool rest 4.

[0039] The protruding ends in the cross slots 11 respectively penetrate through the second tool rest 4 and the third tool rest 5 to the outer wall where first threaded grooves 12 are provided. Corresponding to the first threaded grooves 12, second threaded grooves 13 are provided at the protruding ends of the cross bumps 10. The adjacent tool rests are fixed by bolts fixing the first threaded grooves 12 and the second threaded grooves 13.

[0040] Snap protrusions 14 are provided around the outer sides of the first tool rest 2, the second tool rest 4, and the third tool rest 5 for the tool holder to snap in, providing a convenient way for the tool holder to snap in and enabling the tool holder to be stably fixed between the tool rests.

[0041] The working process of the present utility model: Docking and fixing the second tool rest 4 on the first tool rest 2 to ensure the firm connection between the two. Then, docking and fixing the third tool rest 5 on the second tool rest 4 to complete the assembly of the entire tool rest structure. Place the tool between or on both sides of the positioning plates 6 of the second tool rest 4 and the third tool rest 5 according to the processing requirements (both sides include the support bottom plate 8 and the positioning cover plate 3). Fix the tool holder through the mounting holes 7 on the positioning plate 6 and the bolt fixing parts 31 on the positioning cover plate 3, which penetrate and connect to the fixing holes 9. Start the motor in the outer motor mounting port 101 of the tool rest driving seat 1. The motor drives the first tool rest 2 at the top of the tool rest driving seat 1 to rotate through the transmission device. Since the first tool rest 2, the second tool rest 4, and the third tool rest 5 are connected and fixed to each other, the entire tool rest structure will rotate together. When it is necessary to replace the tool, the motor continues to drive the tool rest structure to rotate to the next working position, or the lifting platform at the bottom drives the tool rest driving seat 1 to move up and down in height, thus completing the usage process.

[0042] When maintenance or tool replacement is required, just loosen the bolt fixing parts 31, and the tool can be removed from the tool rest. If it is necessary to increase or decrease the number of tool rest layers, it can be achieved by disassembling or adding structures such as the second tool rest 4 and the third tool rest 5. For example, when only using a two-layer tool rest structure, the third tool rest 5 needs to be installed on the first tool rest 2.

[0043] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A tool rest for a machining center, comprising a tool rest drive seat (1), a first tool rest (2) and a positioning cover plate (3), wherein the first tool rest (2) is rotatably connected to the top of the tool rest drive seat (1), and the positioning cover plate (3) is threadedly connected along the edge with a plurality of groups of bolt fixing members (31) penetrating both ends, characterized in that: A second tool holder (4) and a third tool holder (5) are provided between the first tool holder (2) and the positioning cover plate (3), and the positioning cover plate (3) is integrally formed above the third tool holder (5), the second tool holder (4) is fixedly connected to the first tool holder (2), and the third tool holder (5) is fixedly connected to the second tool holder (4), and a positioning plate (6) having the same size as the positioning cover plate (3) is extended from the upper edge of the first tool holder (2) and the third tool holder (5), and a mounting hole (7) is provided on the positioning plate (6) at a position corresponding to the bolt fixing member (31), so that the cutting tools placed between and on both sides of the positioning plate (6) are fixed by connecting the bolt fixing member (31) to the mounting hole (7).

2. The tool rest for a machining center according to claim 1, characterized in that: A transmission device is installed inside the tool holder drive seat (1), which is driven by a motor through the outer motor mounting opening (101), thereby driving the top of the tool holder drive seat (1) and the first tool holder (2) installed with the transmission device to rotate.

3. The tool rest for a machining center according to claim 1, characterized in that: A supporting bottom plate (8) having the same size as the positioning cover plate (3) is extended from the bottom edge of the first tool holder (2), and a fixing hole (9) is provided corresponding to the mounting hole (7).

4. The tool rest for a machining center according to claim 1, characterized in that: The tops of the first tool holder (2) and the second tool holder (4) are both provided with cross protrusions (10), and the bottoms of the second tool holder (4) and the third tool holder (5) are both provided with matching cross slots (11) corresponding to the cross protrusions (10), so that the adjacent second tool holder (4) can be docked to the upper end surface of the first tool holder (2), and the third tool holder (5) can be docked to the upper end surface of the second tool holder (4).

5. The tool rest for a machining center according to claim 4, characterized in that: The protruding ends in the cross slot (11) respectively penetrate the second tool holder (4) and the third tool holder (5) to the outer wall, and a first thread groove (12) is provided. A second thread groove (13) is provided at the protruding end of the cross protrusion (10) corresponding to the first thread groove (12). The adjacent tool holders are fixed by bolts to fix the first thread groove (12) and the second thread groove (13).

6. The tool rest for a machining center according to claim 1, characterized in that: The first tool holder (2), the second tool holder (4) and the third tool holder (5) are surrounded by outer sides with snap-in protrusions (14) for snapping into the tool holder.

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