Numerical control index plate convenient to disassemble
By introducing a positioning rod, chuck, and guide block structure into the CNC indexing plate, the problems of chuck installation error and push rod influence are solved, achieving higher precision clamping and stable machining.
Patent Information
- Application Number
- CN202522099019.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-29
AI Technical Summary
Existing CNC indexing plates are prone to errors during clamp installation, and the push rod affects workpiece placement or processing when the jaws move, lacking an effective positioning and guiding structure.
The clamping plate is initially positioned by a positioning rod and a chuck, and guided by a guide block and a guide groove. The clamping plate is then fixed with fastening bolts to reduce errors and stress concentration.
It improves the installation accuracy and stability of the clamping plate, reduces errors, prevents the push rod from affecting workpiece processing, and enhances the effectiveness of the clamping plate.
Smart Images

Figure CN224927576U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of machine tool technology, and in particular to a CNC indexing plate that is easy to disassemble. Background Technology
[0002] Indexing plates are machine tool accessories that clamp workpieces on a chuck or between two centers, allowing them to rotate, index, and position. CNC indexing plates are driven by AC or DC servo motors, with a multi-pitch worm gear mechanism, a hydraulic ring-type locking device, and a robust rigid sealing structure. They are widely used in milling machines, drilling machines, and machining centers.
[0003] According to announcement number CN202221934695.7, a CNC indexing plate that is easy to disassemble is disclosed. This technology discloses a technical solution that includes "an indexing plate body and a clamping plate. The front side of the indexing plate body is provided with a docking block, and the rear side of the clamping plate is provided with a docking groove into which the docking block is inserted. A T-shaped hole is opened on the side of the docking block close to the clamping plate, and a movable hole corresponding to the T-shaped hole is opened on the side of the clamping plate close to the docking block. A connecting block is connected to the movable hole through a pushing mechanism. Two elastic rods are fixedly connected to one side of the connecting block. A locking block is integrally formed at one end of the two elastic rods and engages with the T-shaped hole. An operating mechanism is provided on the outer wall of the indexing plate body to facilitate the docking block's disengagement from the docking groove." This technical solution has the technical effect that when the docking block is inserted into the docking groove, the elastic rods are extended into the T-shaped hole, which allows the locking block to engage with the step of the T-shaped hole, thereby realizing the connection between the docking block and the clamping plate. By setting an operating mechanism, the locking block can be operated to no longer engage with the T-shaped hole, making it convenient for the docking block to disengage from the clamping plate.
[0004] Regarding the aforementioned technologies, the inventors believe the following problems still exist:
[0005] First, the aforementioned device facilitates quick assembly and disassembly between the indexing plate body and the clamping plate. However, it does not provide positioning for the clamping plate, which necessitates additional positioning during installation. This can lead to errors during installation, causing the T-holes to fail to align and requiring frequent adjustments.
[0006] Secondly, because the push rod of the aforementioned device is mounted on the outer surface of the chuck and cannot be adjusted, and the jaws on the chuck need to move during use to clamp and process the workpiece, the protruding push rod may affect the normal use of the chuck, impacting workpiece placement or processing.
[0007] To address the aforementioned problems, the inventors proposed a CNC indexing plate that is easy to disassemble, thereby solving these issues. Utility Model Content
[0008] In order to improve the problem that some existing devices are inconvenient to use, the purpose of this utility model is to provide a CNC indexing plate that is easy to disassemble.
[0009] To solve the above problems, this utility model provides the following solution: a CNC indexing plate that is easy to disassemble, including an indexing plate base body, a clamping plate is provided on one side of the indexing plate base body, a fixing mechanism is provided on one side of the indexing plate base body and the clamping plate, a transmission plate is rotatably mounted on one side of the indexing plate base body, a plurality of positioning rods are fixedly mounted on the side of the transmission plate near the clamping plate, the plurality of positioning rods are distributed in a rectangular array on one side of the transmission plate, positioning heads are fixedly mounted on the ends of the plurality of positioning rods, a plurality of positioning grooves are opened on the side of the clamping plate near the transmission plate to cooperate with the positioning heads, a through groove is opened inside the plurality of positioning rods, two mirror-distributed clamps are slidably installed inside the through groove, the two clamps are respectively located inside the two ends of the through groove, and a spring is fixedly installed between the two clamps.
[0010] Preferably, the fixing mechanism includes multiple guide blocks, each of which is fixedly installed on the inner wall of the clamping disk near the transmission disk. The cross-sectional shape of the guide block is rectangular. Multiple fastening bolts are movably inserted into the outer surface of the clamping disk. The bottom ends of the multiple fastening bolts movably pass through the guide blocks and are threaded into the outer surface of the transmission disk. Multiple guide grooves that cooperate with the guide blocks are opened on the outer surface of the transmission disk. Multiple insertion holes are opened on the outer surface of the clamping disk, and the multiple fastening bolts are movably inserted into the insertion holes.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model, by setting a positioning rod and a clamping head, can initially position the clamping plate by using the positioning rod and the conical positioning head. At the same time, by using multiple clamping heads in conjunction with the semi-circular groove, the subsequent installation work can be smoother, reduce errors, and make installation more convenient.
[0013] 2. This utility model, by setting up a fixing mechanism, can fix the clamping plate by multiple fastening bolts set on the side of the clamping plate, which can prevent it from affecting the normal use of the clamping plate. At the same time, by using multiple guide blocks in conjunction with guide grooves, it can not only guide the clamping plate during installation, but also distribute the stress on the fastening bolts, thereby improving the use effect. Attached Figure Description
[0014] 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.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a partial structural schematic diagram of this utility model.
[0017] Figure 3 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle.
[0018] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.
[0019] In the diagram: 1. Indexing plate base body; 11. Positioning rod; 12. Clamp; 13. Spring; 14. Positioning head; 15. Through groove; 16. Semicircular groove; 17. Positioning groove; 2. Fixing mechanism; 21. Guide groove; 22. Guide block; 23. Fastening bolt; 24. Insertion hole; 3. Clamping plate; 5. Transmission plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example: Figure 1-4 As shown, this utility model provides a CNC indexing plate that is easy to disassemble, including an indexing plate base body 1. The indexing plate base body 1 is the prior art, which can install the device in a suitable position and drive the clamping plate 3 to rotate.
[0022] A clamping plate 3 is provided on one side of the indexing plate base body 1. As a prior art, the clamping plate 3 can clamp the workpiece.
[0023] A fixing mechanism 2 is provided on one side of the indexing plate base body 1 and the clamping plate 3. The fixing mechanism 2 can fix the clamping plate 3. The clamping plate 3 can be fixed by multiple fastening bolts 23. At the same time, the fastening bolts 23 are set on the side of the clamping plate 3 to prevent them from affecting the normal use of the clamping plate 3, thereby improving the use effect.
[0024] A transmission disk 5 is rotatably mounted on one side of the indexing plate base body 1. The transmission disk 5 can rotate, thereby driving the clamping disk 3 to rotate through the cooperation of the guide block 22 and the guide groove 21.
[0025] Multiple positioning rods 11 are fixedly installed on the side of the transmission disk 5 near the clamping disk 3. The positioning rods 11 can position the clamping disk 3. The multiple positioning rods 11 are distributed in a rectangular array on one side of the transmission disk 5 to improve its positioning effect.
[0026] Positioning heads 14 are fixedly installed at the ends of multiple positioning rods 11. Positioning heads 14 can make positioning more convenient. The cross-sectional shape of multiple positioning heads 14 is tapered, which can better insert them into the positioning groove 17.
[0027] The clamping plate 3 has multiple positioning grooves 17 on the side near the transmission plate 5, which are used in conjunction with the positioning head 14. One end of the positioning groove 17 is provided with a conical groove that is used in conjunction with the positioning head 14, and can be used in conjunction with the positioning rod 11 and the positioning head 14.
[0028] Multiple positioning rods 11 have through slots 15 inside. The outlets at both ends of the slots 15 have small diameters, which allow the locking head 12 to protrude but prevent it from falling off.
[0029] The through groove 15 can drive multiple positioning grooves 17. Both sides of the inner wall are provided with semi-circular grooves 16 that cooperate with the clamp head 12. The semi-circular grooves 16 cooperate with the clamp head 12 to limit the position.
[0030] Two mirror-distributed clips 12 are slidably installed inside the through groove 15. The clips 12 can roll inside the through groove 15 for positioning.
[0031] Two clips 12 are located inside the two ends of the through groove 15, and a spring 13 is fixedly installed between the two clips 12. The spring 13 can squeeze the clips 12 on both sides and make them slide outward.
[0032] The fixing mechanism 2 includes multiple guide blocks 22, which have guiding and transmission functions. They can not only guide the clamping plate 3 during installation, but also, by cooperating with the guide groove 21, enable the transmission plate 5 to transmit power to the clamping plate 3, thereby reducing the stress on the fastening bolt 23.
[0033] Multiple guide blocks 22 are fixedly installed on the inner wall of the clamping disk 3 near the transmission disk 5, and the multiple guide blocks 22 are fixedly installed on the side wall of the clamping disk 3 to prevent them from affecting the operation of the clamping disk 3.
[0034] The cross-sectional shape of the guide block 22 is rectangular, so that it can share the stress of the fastening bolt 23 and prevent the fastening bolt 23 from breaking.
[0035] Multiple fastening bolts 23 are movably inserted into the outer surface of the clamping plate 3. Multiple insertion holes 24 are opened on the outer surface of the clamping plate 3. The multiple fastening bolts 23 are movably inserted into the insertion holes 24. The bottom ends of the multiple fastening bolts 23 respectively movably pass through the guide block 22 and are threaded into the outer surface of the transmission plate 5. The clamping plate 3 can be fixed by the fastening bolts 23.
[0036] The outer surface of the transmission disc 5 is provided with multiple guide grooves 21 that cooperate with the guide blocks 22. The multiple guide blocks 22 and multiple guide grooves 21 are arranged in a ring array, which can distribute the stress of the fastening bolts 23.
[0037] Working principle: First, the indexing plate base body 1 is installed in a suitable position on the machine tool. Then, the clamping plate 3 is installed on the transmission plate 5 on one side of the indexing plate base body 1. At the same time, the positioning groove 17 of the clamping plate 3 is engaged with the positioning rod 11, so that the positioning rod 11 is inserted into the positioning groove 17 through the conical positioning head 14. At the same time, the spring 13 squeezes the two chucks 12, so that the chucks 12 are inserted into the semi-circular groove 16, thereby positioning the clamping plate 3.
[0038] While installing the clamping disc 3, the guide block 22 slides inside the guide groove 21. After the clamping disc 3 is installed, the fastening bolt 23 can be rotated to insert the fastening bolt 23 into the insertion hole 24 and through the guide block 22. Finally, the bolt is threaded into the threaded groove inside the guide groove 21, thereby fixing the clamping disc 3.
[0039] When it is necessary to disassemble the clamping disc 3, the fastening bolt 23 can be removed using a tool, and then the clamping disc 3 can be pulled so that the semi-circular groove 16 inside the clamping disc 3 can squeeze the chuck 12 through its arc-shaped side, causing the chuck 12 to retract into the through groove 15, and then the clamping disc 3 can be disassembled along the guide groove 21.
[0040] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A CNC indexing plate that is easy to disassemble, comprising an indexing plate base body (1), characterized in that: A clamping plate (3) is provided on one side of the indexing plate base body (1), and a fixing mechanism (2) is provided on one side of the indexing plate base body (1) and the clamping plate (3). A transmission disk (5) is rotatably mounted on one side of the indexing base body (1). A plurality of positioning rods (11) are fixedly mounted on the side of the transmission disk (5) near the clamping disk (3). The plurality of positioning rods (11) are arranged in a rectangular array on one side of the transmission disk (5). Positioning heads (14) are fixedly mounted at the ends of the plurality of positioning rods (11). A plurality of positioning grooves (17) that cooperate with the positioning heads (14) are opened on the side of the clamping disk (3) near the transmission disk (5). A through groove (15) is opened inside the plurality of positioning rods (11). Two mirror-distributed clamping heads (12) are slidably installed inside the through groove (15). The two clamping heads (12) are located inside the two ends of the through groove (15). A spring (13) is fixedly installed between the two clamping heads (12).
2. The easily detachable CNC indexing plate according to claim 1, characterized in that: The fixing mechanism (2) includes multiple guide blocks (22), and the multiple guide blocks (22) are respectively fixedly installed on the inner wall of the clamping disk (3) near the transmission disk (5). The cross-sectional shape of the guide block (22) is rectangular. Multiple fastening bolts (23) are movably inserted into the outer surface of the clamping disk (3). The bottom ends of the multiple fastening bolts (23) respectively movably pass through the guide block (22) and are threaded into the outer surface of the transmission disk (5). Multiple guide grooves (21) that cooperate with the guide block (22) are opened on the outer surface of the transmission disk (5).
3. The easily detachable CNC indexing plate according to claim 1, characterized in that: The cross-sectional shape of the plurality of positioning heads (14) is tapered.
4. The easily detachable CNC indexing plate according to claim 1, characterized in that: The diameter of the outlet at both ends of the through groove (15) is relatively small.
5. A CNC indexing plate that is easy to disassemble according to claim 1, characterized in that: The inner walls on both sides of the multiple positioning grooves (17) are provided with semi-circular grooves (16) that cooperate with the clamping head (12).
6. A CNC indexing plate that is easy to disassemble according to claim 2, characterized in that: The multiple guide blocks (22) and multiple guide grooves (21) are arranged in a ring array.
7. A CNC indexing plate that is easy to disassemble according to claim 2, characterized in that: The outer surface of the clamping disc (3) is provided with a plurality of insertion holes (24), and a plurality of fastening bolts (23) are movably inserted into the insertion holes (24).
8. A CNC indexing plate that is easy to disassemble according to claim 2, characterized in that: Multiple guide blocks (22) are fixedly installed on the side wall of the clamping disk (3).
Citation Information
Patent Citations
Numerical control index plate convenient to disassemble
CN217800582U
