Frame inner side processing jig

Abstract

The utility model discloses a kind of vehicle frame inner side processing fixture, it is related to mechanical processing fixture technical field, the vehicle frame inner side processing fixture includes processing platform, processing seat, feed drive assembly and rotary drive assembly;The processing platform is equipped with the fixed component for fixing the vehicle frame to be processed;The processing seat is slidably connected in the processing platform, the processing seat includes oppositely arranged connecting end and processing end, the connecting end with the processing end between there is preset length, wherein the processing end is equipped with milling cutter;The feed drive assembly is connected with the connecting end of the processing seat, the feed drive assembly is used to drive the processing seat moves relative to the processing platform, to make the processing end move to the inner side area of the vehicle frame.The technical scheme provided by the utility model can realize the milling machining of the narrow space such as the inner side of the frame of bicycle, so as to meet the product processing demand.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, and in particular to a machining fixture for the inner side of a vehicle frame. Background Technology

[0002] Bicycles are increasingly popular as a means of transportation and fitness equipment. With the increasing personalization of bicycle designs, traditional processing methods can no longer meet the needs of product processing. For example, milling of narrow spaces such as the inner side of the bicycle frame requires the design of more professional processing fixtures to meet the product processing requirements.

[0003] It should be noted that the above content is only used to help understand the technical solution of this utility model, and does not represent an admission that the above content is prior art. Utility Model Content

[0004] The main purpose of this utility model is to provide a machining fixture for the inner side of a bicycle frame, which aims to facilitate milling of the narrow spaces such as the inner side of the bicycle frame to meet product processing requirements.

[0005] To achieve the above objectives, this utility model proposes a machining fixture for the inner side of a vehicle frame;

[0006] Specifically, the machining fixture for the inner side of the frame includes:

[0007] A processing platform, wherein the processing platform is equipped with a fixing component for fixing the frame to be processed;

[0008] A machining base is slidably connected to the machining platform. The machining base includes a connecting end and a machining end that are disposed opposite to each other. There is a preset length between the connecting end and the machining end. A milling cutter is installed on the machining end.

[0009] A feed drive assembly is connected to the connection end of the machining base. The feed drive assembly is used to drive the machining base to move relative to the machining platform so that the machining end moves to the inner region of the frame.

[0010] A rotary drive assembly is connected to the machining base and is used to drive the milling tool.

[0011] In one embodiment, the machining base has a flat structure, and the cross-sectional area of ​​the machining base gradually decreases along the direction from the connecting end to the machining end.

[0012] In one embodiment, the inner side machining fixture of the frame includes a connecting seat, the machining platform has a sliding slot, and the connecting seat is disposed through the sliding slot; the machining seat and the feed drive assembly are respectively located on opposite sides of the machining platform; the two ends of the connecting seat are respectively fixedly connected to the machining seat and the feed drive assembly.

[0013] In one embodiment, a retractable dustproof strip is provided between both ends of the sliding groove and the connecting seat, and the dustproof strip is used to cover the area between the end of the sliding groove and the connecting seat.

[0014] In one embodiment, the feed drive assembly includes a movable seat, a first rotary motor, and a lead screw transmission structure. The first rotary motor is mounted on the power end of the lead screw transmission structure, and the movable seat is mounted on the drive end of the lead screw transmission structure. The inner processing fixture of the frame also includes a base, on which two slide rails are fixedly mounted, and the two slide rails are symmetrically arranged on opposite sides of the lead screw transmission structure. The movable seat is slidably connected to the two slide rails.

[0015] In one embodiment, the base is provided with two displacement sensors, which are located at the beginning and end of the moving path of the moving seat, respectively, and both displacement sensors are electrically connected to the first rotary motor.

[0016] In one embodiment, the rotary drive assembly includes a second rotary motor and a gear transmission structure, wherein the second rotary motor is mounted on the power end of the gear transmission structure and the milling cutter is mounted on the drive end of the gear transmission structure.

[0017] In one embodiment, the gear transmission structure includes a driving gear, a driven gear, and a plurality of transmission gears installed between the driving gear and the driven gear, wherein the driving gear, the plurality of transmission gears, and the driven gear are sequentially meshed and connected; the second rotary motor is connected to the driving gear, and the milling cutter is connected to the driven gear.

[0018] In one embodiment, a connecting rod is coaxially fixedly provided on the driven wheel, and the connecting rod passes through the driven wheel; the end of the connecting rod extends to the outside of the machining seat, and one or both ends of the connecting rod are fixedly connected to the milling tool.

[0019] In one embodiment, the fixing component includes at least two positioning support devices and at least one clamping fixing device; wherein the clamping fixing device includes a first clamping block and a second clamping block arranged vertically, both the first clamping block and the second clamping block having recesses that convexly and concavely engage with the outer contour of the vehicle frame.

[0020] The technical solution of this utility model involves first fixing the vehicle frame to be processed onto the processing platform using a fixing component, and then using a feed drive component to drive the processing seat to move relative to the processing platform. Since the feed drive component is connected to the processing seat, and there is a preset length between the connection end of the processing seat and the processing end, when the feed drive component drives the processing seat to move, the processing end of the processing seat, which is equipped with a milling cutter, can move to a narrow space such as the inner area of ​​the vehicle frame. Finally, a rotary drive component is used to drive the milling cutter to operate, so as to facilitate milling processing of the narrow inner space of the vehicle frame and meet the product processing requirements. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0022] Figure 1 A schematic diagram of one embodiment of the chassis inner processing fixture provided by this utility model;

[0023] Figure 2 A second structural schematic diagram of an embodiment of the frame inner processing fixture provided by this utility model (with the frame hidden);

[0024] Figure 3 A third structural schematic diagram of an embodiment of the chassis inner processing fixture provided by this utility model (with the chassis and processing platform hidden).

[0025] Figure 4 A schematic diagram of the gear transmission structure in one embodiment of the chassis inner side machining fixture provided by this utility model;

[0026] Figure 5 A schematic diagram of the structure of the milling cutter and connecting rod in one embodiment of the chassis inner side machining fixture provided by this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Machining platform; 110. Sliding slot; 120. Dustproof belt; 200. Fixing assembly; 210. Positioning support device; 220. Clamping and fixing device; 300. Machining base; 310. Connecting end; 320. Machining end; 400. Feed drive assembly; 410. Moving base; 420. First rotary motor; 430. Screw drive structure; 431. Screw component; 432. Screw nut; 500. Rotary drive assembly; 510. Second rotary motor 520. Gear transmission structure; 521. Driving wheel; 522. Driven wheel; 523. Transmission wheel; 524. Connecting rod; 5241. Protrusion; 5242. Bearing component; 5243. Threaded hole; 600. Frame; 700. Connecting seat; 800. Base; 810. Slide rail; 820. Displacement sensor; 900. Milling cutter; 910. Milling part; 920. Mounting part; 921. Recessed part; 930. Through hole; 940. Fixing bolt;

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of the embodiments of this utility model, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, it should be noted that the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] Bicycles are increasingly popular as a means of transportation and fitness equipment. With the increasing personalization of bicycle designs, traditional processing methods can no longer meet the needs of product processing. For example, milling of narrow spaces such as the inner side of the bicycle frame requires the design of more professional processing fixtures to meet the product processing requirements.

[0034] To solve the above-mentioned technical problems, this utility model proposes a machining fixture for the inner side of a vehicle frame.

[0035] Please see Figure 1-2 In one embodiment of this utility model, the machining fixture for the inner side of the frame includes:

[0036] The processing platform 100 is equipped with a fixing component 200 for fixing the frame 600 to be processed;

[0037] The machining base 300 is slidably connected to the machining platform 100. The machining base 300 includes a connecting end 310 and a machining end 320 that are disposed opposite to each other. There is a preset length between the connecting end 310 and the machining end 320. A milling cutter 900 is installed on the machining end 320.

[0038] The feed drive assembly 400 is connected to the connection end 310 of the machining base 300. The feed drive assembly 400 is used to drive the machining base 300 to move relative to the machining platform 100 so that the machining end 320 moves to the inner area of ​​the frame 600.

[0039] A rotary drive assembly 500 is connected to the machining base 300 and is used to drive the milling cutter 900.

[0040] The technical solution of this utility model first installs and fixes the chassis 600 to be processed onto the processing platform 100 using a fixing component 200. Then, the feed drive component 400 drives the processing seat 300 to move relative to the processing platform 100. Since the feed drive component 400 is connected to the connecting end 310 of the processing seat 300, and there is a preset length between the connecting end 310 and the processing end 320 of the processing seat 300, when the feed drive component 400 drives the processing seat 300 to move, the processing end 320 of the processing seat 300, which is equipped with a milling cutter 900, can move to a narrow space such as the inner area of ​​the chassis 600. Finally, the rotary drive component 500 drives the milling cutter 900 to operate, so as to facilitate milling processing of the narrow inner space of the chassis 600 and meet the product processing requirements.

[0041] It should be noted that, after understanding the above technical solution, those skilled in the art can apply this application to the milling of other parts with confined spaces besides the frame 600 without creative effort, and such applications should also fall within the scope of protection of this application.

[0042] Specifically, the machining base 300 adopts a flat structure, and the cross-sectional area of ​​the machining base 300 gradually decreases along the direction from the connecting end 310 to the machining end 320. With this configuration, the machining end 320 of the machining base 300 is made smaller, allowing it to move reliably to the inner area of ​​the frame 600, avoiding obstruction when moving to the confined space of the inner area of ​​the frame 600 due to the machining end 320 being too large.

[0043] As a preferred embodiment of the above embodiments, refer to the appendix. Figure 2 The inner machining fixture of the frame includes a connecting seat 700. The machining platform 100 has a sliding slot 110, through which the connecting seat 700 passes. The machining seat 300 and the feed drive assembly 400 are located on opposite sides of the machining platform 100. The two ends of the connecting seat 700 are fixedly connected to the machining seat 300 and the feed drive assembly 400, respectively. With this configuration, since the machining seat 300 and the feed drive assembly 400 are located on opposite sides of the machining platform 100, the connecting seat 700 is needed to connect the machining seat 300 and the feed drive assembly 400. The feed drive assembly 400 can drive the connecting seat 700 to slide along the slot of the sliding slot 110, thereby driving the machining seat 300 to slide along the slot of the sliding slot 110, allowing the machining end 320 of the machining seat 300 to move to the inner area of ​​the frame 600. The structure is simple and highly practical.

[0044] Furthermore, retractable dustproof strips 120 are provided between both ends of the sliding slot 110 and the connecting seat 700. The dustproof strips 120 are used to cover the area between the end of the sliding slot 110 and the connecting seat 700. This arrangement is based on the consideration that milling waste will be generated during the milling process. To prevent the milling waste from falling from the area between the end of the sliding slot 110 and the connecting seat 700 to the bottom of the processing platform 100 and causing environmental pollution, in this embodiment, retractable dustproof strips 120 are used to cover the area between the end of the sliding slot 110 and the connecting seat 700 to prevent milling waste from falling from this area. The dustproof belt 120 can be made of an elastic material with a pleated structure. When the area between the groove end of the sliding slot 110 and the connecting seat 700 increases, the pleated structure of the dustproof belt 120 is stretched and expanded; when the area between the groove end of the sliding slot 110 and the connecting seat 700 increases, the pleated structure of the dustproof belt 120 is compressed and reduced, thus ensuring that the dustproof belt 120 can expand and contract accordingly during the movement of the connecting seat 700.

[0045] As a preferred embodiment of the above embodiments, refer to the appendix. Figure 3 The feed drive assembly 400 includes a movable base 410, a first rotary motor 420, and a lead screw transmission structure 430. The first rotary motor 420 is mounted on the power end of the lead screw transmission structure 430, and the movable base 410 is mounted on the drive end of the lead screw transmission structure 430. The machining fixture inside the frame also includes a base 800, on which two slide rails 810 are fixedly mounted, and the two slide rails 810 are symmetrically arranged on opposite sides of the lead screw transmission structure 430. The movable base 410 is slidably connected to the two slide rails 810. With this configuration, the first rotary motor 420 drives the movable base 410 to move through the lead screw transmission structure 430, while the two slide rails 810 ensure that the movable base 410 moves along a specified path. The structure is simple and practical. The lead screw transmission structure 430 is a conventional technical means, so it will not be described in detail in this application. For example, the lead screw transmission structure 430 includes a lead screw 431 and a lead screw nut 432. A first rotary motor 420 is connected to one end of the lead screw 431. The lead screw nut 432 is fixedly connected to the movable seat 410, and the lead screw nut 432 is threadedly connected to the lead screw 431. Thus, when the first rotary motor 420 drives the lead screw 431 to rotate, the lead screw 431 can drive the lead screw nut 432 to move along its axial direction, thereby driving the movable seat 410 to move.

[0046] Furthermore, the base 800 is equipped with two displacement sensors 820, located at the beginning and end of the moving path of the movable seat 410, respectively. Both displacement sensors 820 are electrically connected to the first rotary motor 420. This configuration allows the two displacement sensors 820 to promptly send commands to the first rotary motor 420 to stop driving when they detect that the movable seat 410 has moved to the beginning and end of its moving path, thus preventing excessive displacement of the movable seat 410 and potential collision between the connecting seat 700 and the sliding slot 110, which could damage the equipment. Since the displacement sensor 820 is prior art, its structure and working principle will not be described in detail here.

[0047] As a preferred embodiment of the above embodiments, refer to the appendix. Figure 4 The rotary drive assembly 500 includes a second rotary motor 510 and a gear transmission structure 520. The second rotary motor 510 is mounted on the power end of the gear transmission structure 520, and the milling cutter 900 is mounted on the drive end of the gear transmission structure 520. This configuration allows the second rotary motor 510 to drive the milling cutter 900 to rotate via the gear transmission structure 520, resulting in a simple and practical structure.

[0048] There are many specific structures for the gear transmission structure 520. In this embodiment, the gear transmission structure 520 includes a driving wheel 521, a driven wheel 522, and a plurality of transmission wheels 523 installed between the driving wheel 521 and the driven wheel 522. The driving wheel 521, the plurality of transmission wheels 523, and the driven wheel 522 are sequentially meshed and connected. The second rotary motor 510 is connected to the driving wheel 521, and the milling cutter 900 is connected to the driven wheel 522.

[0049] Further, see Appendix Figure 5 A connecting rod 524 is coaxially fixed to the driven wheel 522, and the connecting rod 524 passes through the driven wheel 522. The end of the connecting rod 524 extends to the outside of the machining base 300, and one or both ends of the connecting rod 524 are fixedly connected to the milling cutter 900. With this configuration, if only one side of the inner side of the frame 600 needs to be machined, the milling cutter 900 can be connected to only one end of the connecting rod 524; if both sides of the inner side of the frame 600 need to be machined, the two milling cutters 900 can be connected to the two ends of the connecting rod 524 respectively. This allows for reasonable selection according to actual conditions, effectively improving the applicability of this equipment.

[0050] Specifically, the milling cutter 900 includes a milling portion 910 and a mounting portion 920. The mounting portion 920 has a recessed portion 921, and the end of the connecting rod 524 has a protruding portion 5241. The recessed portion 921 and the protruding portion 5241 are fitted together to achieve mutual positioning between the mounting portion 920 and the end of the connecting rod 524. The milling cutter 900 also has a through hole portion 930, and a threaded hole 5243 is provided at the end of the connecting rod 524. A fixing bolt 940 passes through the through hole portion 930 and is threadedly connected to the threaded hole 5243 to achieve a fixed connection between the milling cutter 900 and the connecting rod 524, while also allowing the connecting rod 524 to smoothly drive the milling cutter 900 to rotate.

[0051] More specifically, a bearing 5242 is fixedly sleeved on the connecting rod 524, wherein the outer ring of the bearing 5242 is in close contact with the machining base 300; in this arrangement, the bearing 5242 serves as a support between the machining base 300 and the connecting rod 524, so as to ensure that the connecting rod 524 can maintain stability relative to the machining base 300 when it rotates.

[0052] As a preferred embodiment of the above embodiments, refer to the appendix. Figure 1 The fixing component 200 includes at least two positioning support devices 210 and at least one clamping fixing device 220. The clamping fixing device 220 includes a first clamping block and a second clamping block arranged vertically. Both the first and second clamping blocks have recessed portions that convexly and concavely engage with the outer contour of the frame 600. This arrangement allows the frame 600 to be fitted into the recessed portion between the first and second clamping blocks. Because the recessed portion convexly and concavely engages with the outer contour of the frame 600, the combined action of the first and second clamping blocks effectively clamps and fixes the frame 600. The structure is simple and highly practical.

[0053] In this embodiment, two positioning support devices 210 and a clamping and fixing device 220 are included. One of the two positioning support devices 210 is used to support the bottom of the frame 600, and the other is used to be embedded in the inner side of the frame 600 for support, so as to ensure that the frame 600 can be fixed in position.

[0054] It should be noted that the other contents of the frame inner processing fixture disclosed in this utility model are prior art and will not be described in detail here.

[0055] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any application of this utility model directly or indirectly in other related technical fields is included within the patent protection scope of this utility model.

Claims

1. A jig for machining the inner side of a vehicle frame, characterized in that, The machining fixture for the inner side of the vehicle frame includes: A processing platform, wherein the processing platform is equipped with a fixing component for fixing the frame to be processed; A machining base is slidably connected to the machining platform. The machining base includes a connecting end and a machining end that are disposed opposite to each other. There is a preset length between the connecting end and the machining end. A milling cutter is installed on the machining end. A feed drive assembly is connected to the connection end of the machining base. The feed drive assembly is used to drive the machining base to move relative to the machining platform so that the machining end moves to the inner region of the frame. A rotary drive assembly is connected to the machining base and is used to drive the milling tool.

2. The chassis inner side machining fixture as described in claim 1, characterized in that: The machining base has a flat structure, and the cross-sectional area of ​​the machining base gradually decreases along the direction from the connecting end to the machining end.

3. The chassis inner side machining fixture as described in claim 1, characterized in that: The inner machining fixture of the frame includes a connecting seat, the machining platform has a sliding slot hole, and the connecting seat is disposed through the sliding slot hole; the machining seat and the feed drive assembly are respectively located on opposite sides of the machining platform; the two ends of the connecting seat are respectively fixedly connected to the machining seat and the feed drive assembly.

4. The chassis inner processing fixture as described in claim 3, characterized in that: A retractable dustproof strip is provided between both ends of the sliding groove and the connecting seat. The dustproof strip is used to cover the area between the end of the sliding groove and the connecting seat.

5. The chassis inner side machining fixture as described in claim 1, characterized in that: The feed drive assembly includes a movable seat, a first rotary motor, and a lead screw transmission structure. The first rotary motor is installed at the power end of the lead screw transmission structure, and the movable seat is installed at the drive end of the lead screw transmission structure. The inner processing fixture of the frame also includes a base. The base is fixedly provided with two slide rails, and the two slide rails are symmetrically arranged on opposite sides of the lead screw transmission structure. The movable seat is slidably connected to the two slide rails.

6. The chassis inner side machining fixture as described in claim 5, characterized in that: The base is equipped with two displacement sensors, which are located at the beginning and end of the moving path of the moving seat, respectively. Both displacement sensors are electrically connected to the first rotating motor.

7. The chassis inner side machining fixture as described in claim 1, characterized in that: The rotary drive assembly includes a second rotary motor and a gear transmission structure. The second rotary motor is mounted on the power end of the gear transmission structure, and the milling cutter is mounted on the drive end of the gear transmission structure.

8. The chassis inner side machining fixture as described in claim 7, characterized in that: The gear transmission structure includes a driving gear, a driven gear, and a plurality of transmission gears installed between the driving gear and the driven gear. The driving gear, the plurality of transmission gears, and the driven gear are sequentially meshed and connected. The second rotary motor is connected to the driving gear, and the milling cutter is connected to the driven gear.

9. The chassis inner side machining fixture as described in claim 8, characterized in that: A connecting rod is coaxially fixed to the driven wheel, and the connecting rod passes through the driven wheel; the end of the connecting rod extends to the outside of the machining seat, and one or both ends of the connecting rod are fixedly connected to the milling tool.

10. The chassis inner side machining fixture as described in claim 1, characterized in that: The fixing assembly includes at least two positioning support devices and at least one clamping fixing device; wherein the clamping fixing device includes a first clamping block and a second clamping block arranged vertically, and both the first clamping block and the second clamping block are provided with recesses, the recesses being in concave-convex fit with the outer contour of the vehicle frame.

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