Modular quick-change five-axis workpiece clamping fixture

Abstract

The utility model relates to a modular quick-change five -axis machining workpiece clamp belongs to workpiece clamp technical field, this modular quick-change five -axis machining workpiece clamp, include: mounting block and install the clamp body on the upper surface of mounting block, the quick-change mechanism includes the locating block fixedly connected in the lower surface of clamp body, the inside of locating block is provided with a plurality of insert blocks with mounting block cooperation, a plurality of the top fixedly connected with drive plate of insert block, drive plate sets up in the inside of locating block, through setting up a plurality of clamping blocks by the top block drive in the inside of insert block, cooperate the insert hole in the slot, make the staff when installing this device, directly insert insert block into the slot, clamp body can be automatic with mounting block insertion lock, realize quick installation, when dismounting, only need to pull drive plate by the handle upward, clamp body can be quickly unloaded, significantly improved the clamp replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of workpiece fixture technology, and in particular to a modular quick-change five-axis machining workpiece fixture. Background Technology

[0002] Five-axis machining is an advanced CNC machine tool technology that adds two rotary axes to the three linear axes, allowing the tool to approach the workpiece from any direction. This enables the machining of complex parts in a single setup, achieving five-sided machining and significantly improving accuracy and efficiency. The dedicated workpiece fixture is key to this advantage, providing precise positioning and strong clamping. It is a precision supporting system for achieving efficient and high-quality five-axis manufacturing. A modular, quick-change five-axis machining workpiece fixture is required when performing five-axis machining on a workpiece.

[0003] Traditional five-axis machining fixtures require quick replacement of the fixture body to facilitate the processing of workpieces of different sizes or shapes. When changing traditional workpiece fixtures, a block is usually set at the bottom of the fixture body, and a corresponding insertion hole is set on the mounting block. At the same time, a pull stud is set inside the mounting block to limit the block. When changing the fixture, the operator needs to repeatedly turn the bolt used to drive the pull stud to tighten or loosen the block on the mounting block, thereby completing the disassembly and installation process of the fixture body. Utility Model Content

[0004] Therefore, it is necessary to provide a modular quick-change five-axis machining workpiece fixture to address the problem of cumbersome workpiece fixture changing process in traditional workpiece fixtures.

[0005] A modular quick-change five-axis machining workpiece fixture includes: a mounting block and a fixture body mounted on the upper surface of the mounting block; The quick-change mechanism includes a positioning block fixedly connected to the lower surface of the fixture body. The positioning block has multiple inserts that cooperate with the mounting block inside. The top of the multiple inserts is fixedly connected to a drive plate, which is located inside the positioning block. The surface of the mounting block has multiple slots corresponding to the inserts, and the slots have grooves inside the mounting block.

[0006] In one embodiment, the positioning block has a sliding cavity inside, the drive plate is slidably connected to the sliding cavity, and the bottom end of the insertion block extends through the positioning block.

[0007] In one embodiment, a top block is provided at the center of the inner wall of the insert block, and the top block is slidably connected to the inner wall of the insert block.

[0008] In one embodiment, the top block is cone-shaped, and the top ends of the plurality of top blocks are fixedly connected to the drive plate.

[0009] In one embodiment, the inner wall of the insert block is slidably connected with a plurality of locking blocks, which are used in conjunction with the locking slots, and the inner side of the locking blocks is slidably connected to the surface of the top block.

[0010] In one embodiment, a limiting plate is slidably connected to the inner wall of the drive plate, and handles are fixedly connected to both ends of the limiting plate.

[0011] In one embodiment, limiting grooves are provided on both sides of the positioning block, and the limiting grooves are used in conjunction with limiting plates. Magnetic blocks that cooperate with each other are provided between the handle and the inner wall of the positioning block.

[0012] In one embodiment, a friction block is provided above the limiting groove and is slidably connected to the inner wall of the positioning block, and a plurality of springs are fixedly connected between the top end of the friction block and the inner wall of the positioning block.

[0013] In one embodiment, the lower surface of the friction block is chamfered at the end near the handle, and the bottom end of the limiting groove on the lower surface of the friction block abuts against it.

[0014] In one embodiment, a wedge-shaped block is fixedly connected to the side surface of the card block near the top block, and the surface of the top block is provided with a plurality of grooves corresponding to the wedge-shaped block.

[0015] Beneficial effects 1. By setting multiple locking blocks driven by the top block inside the insert block, and cooperating with the insertion holes in the slot, the operator can directly insert the insert block into the slot when installing this device, and the fixture body will automatically insert and lock with the installation block, achieving quick installation; when disassembling, simply pull the drive plate upward by the handle, and the block drive plate will drive the top block to retract and disengage the locking blocks synchronously from the slot, thereby quickly removing the fixture body. This process completely avoids the tedious steps of repeatedly tightening bolts, significantly improving the efficiency of fixture replacement. 2. By setting a sliding limiting plate inside the drive plate, together with the limiting groove and friction plate, after the fixture body is installed on the surface of the mounting block, the limiting plate can be slid into the limiting groove for locking, thereby limiting the limiting groove, improving the stability of the drive plate, and preventing the drive plate from loosening during the processing, which would cause the fixture body to loosen. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the mold body and the mounting block of this utility model; Figure 3 This is a cross-sectional view of the positioning block of this utility model; Figure 4 This is a schematic diagram showing the connection between the drive plate and the limiting plate of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0018] Figure label: 100. Mounting block; 110. Slot; 111. Card slot; 200. Fixture body; 300. Quick change mechanism; 310. Positioning block; 311. Slide cavity; 312. Limiting slot; 320. Drive plate; 321. Limiting plate; 322. Handle; 330. Insertion block; 331. Carding block; 332. Top block; 340. Friction block; 341. Spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] The following is combined with Figure 1 - Figure 5 This invention describes a modular quick-change five-axis machining workpiece fixture.

[0021] In one embodiment, a modular quick-change five-axis machining workpiece fixture includes: a mounting block 100 and a fixture body 200 mounted on the upper surface of the mounting block 100; The quick-change mechanism 300 includes a positioning block 310 fixedly connected to the lower surface of the fixture body 200. The positioning block 310 has multiple inserts 330 that cooperate with the mounting block 100. The top of the multiple inserts 330 is fixedly connected to a drive plate 320, which is located inside the positioning block 310. The surface of the mounting block 100 has multiple slots 110 corresponding to the inserts 330. The slots 110 have slots 111 inside the mounting block 100.

[0022] The quick-change mechanism 300 in this device can be used with fixtures. The fixture body 200 in this device does not refer to a specific type of fixture, but is only applicable to fixtures used for five-axis machining. The surface of the mounting block 100 in this device is provided with multiple sets of insertion holes to adapt to fixture bodies 200 of different sizes. Because the bottom area of ​​fixture bodies 200 of different sizes is different, the area of ​​the corresponding positioning block 310 is also different. Therefore, multiple sets of insertion holes are provided to adapt to fixture bodies 200 of different sizes. Mounting holes are provided at the four corners of the mounting block 100. After the fixture body 200 is installed with the mounting holes, the entire device is installed to the machining station in the machine tool through the mounting holes.

[0023] like Figure 3 , Figure 4 and Figure 5 As shown, the positioning block 310 has a sliding cavity 311 inside, and the drive plate 320 is slidably connected to the sliding cavity 311. The bottom end of the insertion block 330 extends through the positioning block 310. A top block 332 is provided at the center of the inner wall of the insertion block 330, and the top block 332 is slidably connected to the inner wall of the insertion block 330. The top block 332 is conical in shape. Multiple locking blocks 331 are slidably connected to the inner wall of the insertion block 330. The locking blocks 331 cooperate with the locking slots 111, and the inner side of the locking blocks 331 is slidably connected to the surface of the top block 332. A wedge-shaped block is fixedly connected to the side surface of the locking block 331 near the top block 332, and multiple sliding grooves corresponding to the wedge-shaped block are provided on the surface of the top block 332.

[0024] In this embodiment, the top block 332 is a cone, with its top end penetrating the insert block 330 and the positioning block 310 and fixedly connected to the drive plate 320 inside the positioning block 310. The insert block 330 is fixedly connected to the lower surface of the positioning block 310. Therefore, when the insert block 330 is inserted into the slot 110, the operator pulls the drive plate 320, which directly drives the top block 332 to move upward. The locking block 331 is slidably connected to the top block 332 through the wedge-shaped block inside and the sliding groove on the surface of the top block 332 that cooperates with the wedge-shaped block. When the top block 332 moves downward, the top block 332 will gradually squeeze the multiple locking blocks 33 outward. 1. Move the locking block 331 into the locking slot 111 and finally lock it into the locking slot 111. The top and bottom ends of the locking block 331 are slidably connected to the inner wall of the insertion block 330. Therefore, the locking block 331 can only move horizontally relative to the insertion block 330. When the operator pulls the drive plate 320 upward, the drive plate 320 will drive the top block 332 to move upward. At this time, the locking block 331 will retract along the surface of the top block 332 towards the center of the top block 332, thereby causing the locking block 331 to retract towards the center of the insertion block 330. The locking block 331 will disengage from the insertion block 330. At this time, the operator can directly remove the fixture body 200 from the mounting block 100. It should be noted that this device replaces the traditional rivet fixing by setting a top block 332 inside the insertion block 330 and a corresponding slot 111 inside the slot 110. The drive plate 320 is pulled by a handle to lock and stop the traditional method of tightening and loosening by turning the screw with a tool. This simplifies the assembly and disassembly process of the clamp and achieves an optimized effect. Since the quick-change mechanism 300 of this device is set inside the top block 332, it will not affect the normal installation and use of the clamp body 200 and the mounting block 100.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a limiting plate 321 is slidably connected to the inner wall of the drive plate 320, and handles 322 are fixedly connected to both ends of the limiting plate 321. Limiting grooves 312 are formed on both sides of the positioning block 310, and the limiting grooves 312 cooperate with the limiting plate 321. Cooperative magnetic blocks are provided between the handles 322 and the inner wall of the positioning block 310. A friction block 340 is slidably connected to the inner wall of the positioning block 310 above the limiting groove 312. Multiple springs 341 are fixedly connected between the top of the friction block 340 and the inner wall of the positioning block 310. The lower surface of the friction block 340 near the handle 322 is chamfered, and the lower surface of the friction block 340 abuts against the bottom end of the limiting groove 312.

[0026] In this embodiment, when the operator slides the limiting plate 321 into the limiting groove 312, the limiting plate 321 will push the friction block 340 upward. At this time, the friction block 340 increases the pressure on the limiting plate 321 under the action of gravity and the elastic force of the spring 341. Furthermore, the contact area between the limiting plate 321 and the friction plate is rough, and with the help of the magnetic block, the limiting plate 321 can be stably restricted in the limiting groove 312. This prevents the inertia generated by the rotation of the device during the processing from throwing the limiting plate 321 out of the limiting groove 312. The operator can then manually remove the limiting plate 321 from the limiting groove 312 and slide it along the original path.

[0027] Working principle: When processing a workpiece, the operator first selects a suitable fixture body 200 according to the shape and size of the workpiece. Then, the insert block 330 below the fixture body 200 is aligned with the slot 110 of the mounting block 100 on the processing table and inserted. After the insert block 330 is fully inserted into the slot 110, the operator presses down on the handle 322. The handle 322 drives the drive block to move synchronously, and the drive block synchronously drives the top block 332 to move towards the bottom of the insert block 330. At this time, the locking block 331 located inside the same insert block 330 will be pushed by the top block. The surface of 332 is gradually pressed outward until the card block 331 is fully inserted into the card slot 111. At this time, the card block 331 cooperates with the card slot 111 to fix the insert block 330 inside the insert block 330. At this time, the limiting plate 321 moves to the position of the limiting groove 312. The operator can slide the limiting plate 321 into the limiting groove 312 by sliding the two handles 322. At this time, the limiting plate 321 is firmly restricted in the limiting groove 312 under the pressure of the friction block 340 and the action of the two magnetic blocks, so as to prevent the driving block from moving during the processing of the processing table.

[0028] It should be noted that the mounting block 100 and the fixture body 200 mentioned above are devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A modular quick-change five-axis machining workpiece fixture, characterized in that, include: Mounting block (100) and clamp body (200) mounted on the upper surface of mounting block (100); The quick-change mechanism (300) includes a positioning block (310) fixedly connected to the lower surface of the fixture body (200). The bottom of the positioning block (310) is fixedly connected to a plurality of inserts (330) that cooperate with the mounting block (100). A drive plate (320) is provided above the plurality of inserts (330). The drive plate (320) is located inside the positioning block (310). The surface of the mounting block (100) is provided with a plurality of slots (110) corresponding to the inserts (330). The slots (110) are provided with a card slot (111) inside the mounting block (100).

2. The modular quick-change five-axis machining workpiece fixture according to claim 1, characterized in that, The positioning block (310) has a sliding cavity (311) inside, the drive plate (320) is slidably connected to the sliding cavity (311), and the bottom end of the insert (330) passes through the positioning block (310).

3. The modular quick-change five-axis machining workpiece fixture according to claim 1, characterized in that, A top block (332) is provided at the center of the inner wall of the insert (330), and the top block (332) is slidably connected to the inner wall of the insert (330).

4. The modular quick-change five-axis machining workpiece fixture according to claim 3, characterized in that, The top block (332) is cone-shaped, and the top ends of the plurality of top blocks (332) are fixedly connected to the drive plate (320).

5. The modular quick-change five-axis machining workpiece fixture according to claim 1, characterized in that, The inner wall of the insert (330) is slidably connected with a plurality of locking blocks (331), which are used in conjunction with the locking slot (111). The inner side of the locking block (331) is slidably connected to the surface of the top block (332).

6. The modular quick-change five-axis machining workpiece fixture according to claim 4, characterized in that, The inner wall of the drive plate (320) is slidably connected to a limiting plate (321), and both ends of the limiting plate (321) are fixedly connected to handles (322).

7. The modular quick-change five-axis machining workpiece fixture according to claim 6, characterized in that, The positioning block (310) has a limiting groove (312) on both sides. The limiting groove (312) is used in conjunction with the limiting plate (321). The handle (322) and the inner wall of the positioning block (310) are provided with mutually cooperating magnetic blocks.

8. The modular quick-change five-axis machining workpiece fixture according to claim 7, characterized in that, Above the limiting groove (312) is a friction block (340) that is slidably connected to the inner wall of the positioning block (310). Multiple springs (341) are fixedly connected between the top of the friction block (340) and the inner wall of the positioning block (310).

9. The modular quick-change five-axis machining workpiece fixture according to claim 8, characterized in that, The lower surface of the friction block (340) is chamfered at the end near the handle (322), and the lower surface of the friction block (340) abuts against the bottom end of the limiting groove (312).

10. The modular quick-change five-axis machining workpiece fixture according to claim 5, characterized in that, The card block (331) has a wedge block fixedly connected to the side surface near the top block (332), and the surface of the top block (332) has multiple grooves corresponding to the wedge block.

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