A gravity balance support architecture for a machining center tool magazine

By installing a support assembly and an adjustable counterweight on one side of the machining center's frame, the problem of tool magazine gravity imbalance was solved, improving the tool magazine's stability and positioning accuracy, and extending the equipment's service life.

CN224322774UActive Publication Date: 2026-06-05NINGBO GUANLI CNC MACHINE TOOL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO GUANLI CNC MACHINE TOOL CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The tool magazine in a machining center suffers from gravitational imbalance and tilting due to its bottom being suspended and one side having a large mass, which affects the tool positioning accuracy and the lifespan of the equipment.

Method used

A support assembly, including a support component and a balance component, is installed on one side of the machining center frame. The support component provides stable support, and the adjustable counterweight is used to balance the gravity within the support frame, ensuring that the tool magazine maintains a good gravity balance under different working conditions.

Benefits of technology

By sharing the support force of the tool magazine, the stability and positioning accuracy of the tool magazine are improved, the equipment life is extended, and maintenance costs are reduced.

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Abstract

The utility model relates to machining center tool magazine technical field discloses a machining center tool magazine gravity balance support frame, including body subassembly, including frame, one side of frame is provided with tool magazine, is provided with processing mechanism on the frame, the workbench is provided below processing mechanism, support subassembly is located one side of frame, including support piece. The utility model has the advantages that: through adding the support frame on the frame, can share the supporting force of tool magazine, cooperates the original support piece of side, provides the stable support for the tool, the counterweight block set up in the support frame can be adjusted flexibly according to the change of the number and weight of the tool in the tool magazine, timely increases or reduces the counterweight block, ensures that the machining center always maintains the good gravity balance state under different working conditions, further improves the stability of tool magazine, fixes the adjustment height of counterweight block at the position convenient for worker operation, and it is convenient for worker to complete the increase or reduction and adjustment operation of counterweight block.
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Description

Technical Field

[0001] This utility model relates to the field of machining center tool magazine technology, and in particular to a gravity balance support structure for machining center tool magazines. Background Technology

[0002] In the modern machining industry, machining centers, with their high-precision and high-efficiency machining capabilities, have become the core equipment for the production of various complex parts. Common machining centers typically have a tool magazine on one side of the frame to store various tools required for the machining process and to change tools in conjunction with a robotic arm. The bottom of the tool magazine is suspended in the air, lacking effective support, and the overall mass of the tool magazine and its internal tools is relatively large, causing the overall center of gravity of the machining center to be severely biased to one side. During long-term operation, due to the continuous effect of gravity, the tool magazine is prone to tilting and deformation. This not only leads to a decrease in the positioning accuracy of the tools inside the tool magazine, causing tool misalignment and tool change jamming during tool changes, affecting machining efficiency and accuracy, but also accelerates the wear of the tool magazine's transmission components, significantly shortens the tool magazine's service life, and increases equipment maintenance costs. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing gravity balance support architecture of machining center tool magazine, this utility model is proposed.

[0005] Therefore, the problem to be solved by this utility model is the gravity imbalance and tilting of the tool magazine of the machining center caused by the bottom being suspended and the large mass on one side.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a gravity balance support structure for a machining center tool magazine, which includes a main component including a frame, a tool magazine being provided on one side of the frame, a machining mechanism being provided on the frame, and a worktable being provided below the machining mechanism;

[0007] A support assembly, located on one side of the frame, includes a support member, on which a balancing member is provided;

[0008] The support includes a mounting base fixed to the tool magazine, a connecting block fixed to one side of the frame, a connecting plate fixed to one side of the connecting block, the other end of the connecting plate fixed to the mounting base, a support frame fixed to the bottom of the connecting block, and a cavity provided inside the support frame;

[0009] The balancing component includes a fixed plate fixed inside the support frame, a movable plate above the fixed plate, and a counterweight placed on the movable plate.

[0010] As a preferred embodiment of the gravity balance support structure for the machining center tool magazine of this utility model, a reinforcing rib is fixed on one side of the connecting plate, and the reinforcing rib is fixed to the mounting base and the connecting block.

[0011] As a preferred embodiment of the gravity balance support structure for the machining center tool magazine of this utility model, a spring is fixed to one side of the fixed plate, and the other end of the spring is fixed to the movable plate.

[0012] As a preferred embodiment of the gravity balance support structure for the machining center tool magazine of this utility model, the inner wall of the cavity is fixed with limit blocks, and there are two limit blocks.

[0013] As a preferred embodiment of the gravity balance support structure for the machining center tool magazine of this utility model, the support assembly further includes an auxiliary component located on one side of the support frame. The auxiliary component includes a door panel rotatably connected to one side of the support frame, and the door panel is connected to the support frame via a hinge.

[0014] As a preferred embodiment of the gravity balance support structure for the machining center tool magazine of this utility model, a fixing block is fixed on the support frame, a support block is fixed on the door panel, a guide post is fixed on the support block, a locking block is sleeved on the guide post, a fixing post is fixed at the bottom of the locking block, and a through groove corresponding to the fixing post is opened on the fixing block.

[0015] In a preferred embodiment of the gravity balance support structure for the machining center tool magazine described in this utility model, the horizontal height of the fixed block is lower than that of the support block.

[0016] As a preferred embodiment of the gravity balance support structure for the machining center tool magazine described in this utility model, a through groove is provided on the door panel.

[0017] As a preferred embodiment of the gravity balance support structure for the machining center tool magazine described in this utility model, there are two door panels and multiple hinges.

[0018] As a preferred embodiment of the gravity balance support structure for the machining center tool magazine described in this utility model, there are multiple counterweights, and each counterweight is fixed with a handle.

[0019] The beneficial effects of this utility model are as follows: By adding a support frame to the machine frame, the supporting force of the tool magazine can be shared. Together with the original side support, it provides stable support for the tools. The counterweight block set inside the support frame can be flexibly adjusted according to the changes in the number and weight of the tools in the tool magazine. The counterweight block can be added or removed in time to ensure that the machining center always maintains a good gravity balance under different working conditions, further improving the stability of the tool magazine. The adjustment height of the counterweight block is fixed in a position that is convenient for the worker to operate, making it easy for the worker to complete the operation of adding, removing and adjusting the counterweight block. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is an overall structural diagram of the gravity balance support architecture for the tool magazine of a machining center.

[0022] Figure 2 Gravity balancing support structure for tool magazine in machining centers Figure 1 Enlarged view of the structure at point A in the middle.

[0023] Figure 3 Another perspective view of the overall structure of the gravity balance support architecture for the tool magazine of a machining center.

[0024] Figure 4 This is a structural diagram of the connecting block for the gravity balance support architecture of the tool magazine in a machining center.

[0025] Figure 5 This is a structural diagram of the support frame for the gravity balance support architecture of the tool magazine in a machining center.

[0026] Figure 6 Gravity balancing support structure for tool magazine in machining centers Figure 5 Enlarged view of the structure at point B in the middle.

[0027] Figure 7 This is a structural diagram of the counterweight block for the gravity balance support architecture of the tool magazine in a machining center. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0031] Example 1

[0032] Reference Figures 1-4 and Figure 7 This is the first embodiment of the present invention. This embodiment provides a gravity balance support structure for a machining center tool magazine. The gravity balance support structure for a machining center tool magazine includes a main component 100, including a frame 101. A tool magazine 102 is provided on one side of the frame 101. A tool holder 102-1 is provided inside the tool magazine 102. A machining mechanism 103 is provided on the frame 101. A worktable 104 is provided below the machining mechanism 103. The tool magazine 102, in conjunction with a robotic arm, can complete the tool replacement on the machining mechanism 103, and then perform corresponding machining. This is the prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0033] The support assembly 200, located on one side of the frame 101, includes a support member 201 and a balance member 202. The support member 201 is used to provide stable support for the tool magazine 102 and is connected to the frame 101. The balance member 202 is used to balance the additional weight that the tool magazine 102 brings to the frame 101.

[0034] The support member 201 includes a mounting base 2011 fixed to the tool magazine 102. A connecting block 2012 is fixed to one side of the frame 101. The connecting block 2012 is composed of multiple support plates 2012-1. A connecting plate 2013 is fixed to one side of the connecting block 2012. The other end of the connecting plate 2013 is fixed to the mounting base 2011. The connecting plate 2013 is used to connect the connecting block 2012 and the mounting base 2011, thereby fixing the tool magazine 102 to the frame 101.

[0035] The bottom of the connecting block 2012 is fixed with a support frame 2014. Two sides of the support frame 2014 are in contact with the end face of the frame 101 and are fixed by welding. A cavity 2014-1 is provided inside the support frame 2014, and the cavity 2014-1 is connected to the outside of the support frame 2014.

[0036] The balancing component 202 includes a fixed plate 2021 fixed within the support frame 2014, a movable plate 2022 positioned above the fixed plate 2021, and a counterweight 2023 placed on the movable plate 2022. The counterweight 2023 is used to balance the additional gravity exerted by the tool magazine 102 on one side of the frame 101. The total gravity varies depending on the number of tools placed in the tool magazine 102. An appropriate number of counterweights 2023 can be selected based on the total weight to achieve gravity balance.

[0037] Example 2

[0038] Reference Figures 1-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0039] Specifically, a reinforcing rib 2015 is fixed on one side of the connecting plate 2013. The reinforcing rib 2015 is fixed to the mounting base 2011 and the connecting block 2012. There are multiple reinforcing ribs 2015, which are used to strengthen the strength of the connecting plate 2013, ensure that the mounting base 2011 and the connecting block 2012 can be stably fixed, and improve the reliability of the tool magazine 102 installation.

[0040] Specifically, a spring 2024 is fixed to one side of the fixed plate 2021, and the other end of the spring 2024 is fixed to the movable plate 2022. The spring 2024 is used to reset the movable plate 2022. When different numbers of counterweights 2023 are placed on the movable plate 2022, the spring 2024 will be compressed to different degrees, and the distance between the movable plate 2022 and the fixed plate 2021 will change.

[0041] Specifically, there are two limit blocks 2025 fixed to the inner wall of cavity 2014-1. The limit blocks 2025 restrict the initial position of the fixed plate 2021. When no counterweight 2023 is placed, the fixed plate 2021 is pushed upward by the spring 2024, which makes it fit against the bottom of the limit block 2025. At this time, the spring 2024 is in a compressed state. At the same time, the two limit blocks 2025 can also restrict the placement position of the counterweight 2023, ensuring that multiple counterweights 2023 can be aligned when stacked. The weight of a single counterweight 2023 is 10-12 kg.

[0042] When a counterweight 2023 is placed, the overall weight of the support 201 is similar to the weight of the counterweight 2023, thus balancing the gravity. At this time, the weight of one counterweight 2023 is not enough to make the fixing plate 2021 move downward. When another counterweight 2023 is added and the counterweights 2023 are stacked, the spring 2024 is compressed, and the distance that the fixing plate 2021 moves downward is exactly the height of one counterweight 2023. This ensures that the end face of the top counterweight 2023 always maintains the same horizontal height. At this height, the worker does not need to climb or bend over, making it convenient and comfortable to operate when adjusting the number of counterweights 2023.

[0043] Specifically, the support assembly 200 also includes an auxiliary component 203 located on one side of the support frame 2014. The auxiliary component 203 facilitates the opening of the support frame 2014 for internal maintenance. During normal use, it can be closed to protect the interior of the support frame 2014. The auxiliary component 203 includes a door panel 2031 rotatably connected to one side of the support frame 2014. The door panel 2031 is connected to the support frame 2014 via a hinge 2032. The hinge 2032 is bolted to the door panel 2031 and the support frame 2014, allowing the door panel 2031 and the support frame 2014 to rotate relative to each other. This is prior art, and this solution will not be described in detail here. Moreover, those skilled in the art can clearly understand the working principle.

[0044] Example 3

[0045] Reference Figures 5-7 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0046] Specifically, a fixing block 2033 is fixed on the support frame 2014, a support block 2034 is fixed on the door panel 2031, a guide post 2035 is fixed on the support block 2034, a locking block 2036 is provided on the outer sleeve of the guide post 2035, and a fixing post 2037 is fixed at the bottom of the locking block 2036. The fixing post 2037 is used to lock the position of the support frame 2014 and the door panel 2031 so that the two are kept in a closed state.

[0047] The fixing block 2033 has a through groove corresponding to the fixing post 2037. When the fixing post 2037 is inserted into the through groove, the door panel 2031 is closed to protect the inside of the support frame 2014. The support block 2034 also has a through groove corresponding to the fixing post 2037.

[0048] The locking block 2036 can move up and down along the guide post 2035. Under the action of the corresponding through slots on the fixed post 2037 and the support block 2034, the locking block 2036 is restricted to move only vertically. A protrusion is fixed on the top of the guide post 2035. The protrusion and the support block 2034 together restrict the range of vertical movement of the locking block 2036 and prevent the locking block 2036 from detaching from the guide post 2035.

[0049] When the door panel 2031 changes from the open state to the closed state, the locking block 2036 is lifted upward, causing the fixing post 2037 to move upward. The horizontal height of the bottom end face of the fixing post 2037 is higher than the end face of the fixing block 2033, so it will not obstruct the closing of the door panel 2031. After the door panel 2031 is attached to the end face of the support frame 2014, the fixing post 2037 will be in a coaxial position with the corresponding through groove on the fixing block 2033. Then, the locking block 2036 is pushed downward, so that the fixing post 2037 engages with the through groove on the fixing block 2033, thereby restricting the door panel 2031 from opening. When it is necessary to open the door panel 2031, the locking block 2036 is lifted upward, so that the fixing post 2037 separates from the corresponding through groove on the fixing block 2033, and the door panel 2031 can be adjusted again.

[0050] Specifically, the horizontal height of the fixed block 2033 is lower than that of the support block 2034.

[0051] Specifically, a through groove 2031-1 is provided on the door panel 2031. The length of the through groove 2031-1 corresponds to the counterweight 2023, and its height is slightly greater than the height of the two counterweights 2023. Workers can adjust the number of counterweights 2023 in the support frame 2014 through the through groove 2031-1.

[0052] Specifically, there are two door panels 2031 and multiple hinges 2032.

[0053] Specifically, there are multiple counterweights 2023. When the number of tools on the tool magazine 102 changes little, that is, when the weight on one side of the tool magazine 102 changes little, there is no need to increase or decrease the number of counterweights 2023. The weight of the tools changes little, and the resulting offset of the tool magazine's center of gravity may be within the balance capacity of the support frame 2014 and the existing counterweights.

[0054] A handle 2026 is fixed on the counterweight 2023, making it easy to pick up the counterweight 2023.

[0055] In use, select a suitable counterweight 2023 based on the weight variation of the tools in the tool magazine 102. When it is necessary to increase the number of counterweights 2023, place the counterweight 2023 on top of the existing counterweights 2023 in the cavity 2014-1 through the through slot 2031-1. The counterweights 2023 are stacked, at which time the spring 2024 is compressed, and the distance that the fixing plate 2021 moves downward is exactly the height of one counterweight 2023, so that the end face of the top counterweight 2023 always maintains the same horizontal height. When it is necessary to reduce the weight, pull the handle 2026 from the through slot 2031-1 to take out the counterweight 2023. The spring 2024 will extend, and the distance that the fixing plate 2021 moves upward is exactly the height of one counterweight 2023.

[0056] When the door panel 2031 changes from the open state to the closed state, the locking block 2036 is lifted upward, causing the fixing post 2037 to move upward. The horizontal height of the bottom end face of the fixing post 2037 is higher than the end face of the fixing block 2033, so it will not obstruct the closing of the door panel 2031. After the door panel 2031 is attached to the end face of the support frame 2014, the fixing post 2037 will be in a coaxial position with the corresponding through groove on the fixing block 2033. Then, the locking block 2036 is pushed downward, so that the fixing post 2037 engages with the through groove on the fixing block 2033, thereby restricting the door panel 2031 from opening. When it is necessary to open the door panel 2031, the locking block 2036 is lifted upward, so that the fixing post 2037 separates from the corresponding through groove on the fixing block 2033, and the door panel 2031 can be adjusted again.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A gravity-balanced support structure for a machining center tool magazine, characterized in that: include, The main component (100) includes a frame (101), a tool magazine (102) is provided on one side of the frame (101), a machining mechanism (103) is provided on the frame (101), and a worktable (104) is provided below the machining mechanism (103). A support assembly (200) is located on one side of the frame (101) and includes a support member (201) on which a balance member (202) is provided. The support member (201) includes a mounting base (2011) fixed on the tool magazine (102), a connecting block (2012) fixed on one side of the frame (101), a connecting plate (2013) fixed on one side of the connecting block (2012), the other end of the connecting plate (2013) fixed on the mounting base (2011), and a support frame (2014) fixed at the bottom of the connecting block (2012). A cavity (2014-1) is provided inside the support frame (2014). The balancing component (202) includes a fixed plate (2021) fixed inside the support frame (2014), a movable plate (2022) is provided above the fixed plate (2021), and a counterweight (2023) is placed on the movable plate (2022).

2. The gravity balance support structure for the machining center tool magazine as described in claim 1, characterized in that: A reinforcing rib (2015) is fixed on one side of the connecting plate (2013), and the reinforcing rib (2015) is fixed to the mounting base (2011) and the connecting block (2012).

3. The gravity balance support structure for the machining center tool magazine as described in claim 1 or 2, characterized in that: A spring (2024) is fixed to one side of the fixed plate (2021), and the other end of the spring (2024) is fixed to the movable plate (2022).

4. The gravity balance support structure for the machining center tool magazine as described in claim 3, characterized in that: The inner wall of the cavity (2014-1) is fixed with a limiting block (2025), and there are two limiting blocks (2025).

5. The gravity balance support structure for the machining center tool magazine as described in claim 4, characterized in that: The support assembly (200) also includes an auxiliary component (203) located on one side of the support frame (2014). The auxiliary component (203) includes a door panel (2031) rotatably connected to one side of the support frame (2014). The door panel (2031) is connected to the support frame (2014) via a hinge (2032).

6. The gravity balance support structure for the machining center tool magazine as described in claim 5, characterized in that: A fixing block (2033) is fixed on the support frame (2014), a support block (2034) is fixed on the door panel (2031), a guide post (2035) is fixed on the support block (2034), a locking block (2036) is provided on the guide post (2035), a fixing post (2037) is fixed at the bottom of the locking block (2036), and a through groove corresponding to the fixing post (2037) is provided on the fixing block (2033).

7. The gravity balance support structure for the machining center tool magazine as described in claim 6, characterized in that: The horizontal height of the fixed block (2033) is lower than that of the support block (2034).

8. The gravity balance support structure for the machining center tool magazine as described in claim 6 or 7, characterized in that: The door panel (2031) has a through groove (2031-1).

9. The gravity balance support structure for the machining center tool magazine as described in claim 8, characterized in that: There are two door panels (2031) and multiple hinges (2032).

10. The gravity balance support structure for the tool magazine of a machining center as described in claim 9, characterized in that: There are multiple counterweights (2023), and each counterweight (2023) has a handle (2026) fixed on it.