A holding device for a milling machine tool

Abstract

This utility model discloses a top-holding device for a milling machine tool, relating to the field of milling machine tool technology. It includes a support column, one end of which is equipped with an adjustable clamping assembly. A guide frame moves within an adjustment groove to adjust the height of the ejector cylinder. The guide frame guides the use of the reinforcing column. Two limiting plates limit the use of two trapezoidal top pins. Two telescopic springs buffer the movement of the two trapezoidal top pins within the ejector cylinder. A first trapezoidal cylindrical tube and a second trapezoidal cylindrical tube contact the two trapezoidal top pins, enabling the two top pins to move up and down with the ejector cylinder while being limited and clamped to their outer wall. A connecting cylinder uses a limiting seat to limit and support a limiting ring. A fixed seat uses a fixing block to fix the adjustable clamping frame. The adjustable clamping frame clamps and guides the components within the limiting ring.

Description

Technical Field

[0001] This utility model relates to the field of milling machine tool technology, and in particular to a top holding device for a milling machine tool. Background Technology

[0002] During milling, the workpiece needs to be firmly fixed to prevent displacement or rotation, thereby ensuring machining accuracy and safety. However, existing clamping devices have the following problems:

[0003] Many devices have fixed structures that cannot adapt to workpieces of different lengths, making it difficult to effectively hold long workpieces during processing. Traditional clamping devices are complex to operate when adjusting the workpiece position, increasing auxiliary time. Many existing devices lack reliable protection and guidance for internal precision components. For example, without precise guidance and buffering, the ejector mechanism is prone to shaking or impact during extension and retraction, affecting the stability and service life of the ejector. At the same time, the lack of effective limiting and clamping mechanisms for moving parts such as pins inside the ejector mechanism can cause them to misalign under force, thus affecting the overall functional reliability of the device.

[0004] To address the above problems, it is necessary to design a support device for milling machine tools to overcome these issues. Utility Model Content

[0005] The main objective of this invention is to provide a top-holding device for milling machine tools, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A top-holding device for a milling machine tool includes a support column, one end of which is provided with an adjustable clamping assembly;

[0008] The adjustable clamping assembly includes adjustment slots at both ends of the support column, guide frames connected to the inner sides of the two adjustment slots, reinforcing columns connected to the inner sides of the guide frames, an ejector cylinder connected to the top of the reinforcing columns, limit plates connected to both ends of the guide frames, locking blocks connected to the ends of the two limit plates near the ejector cylinder, locking rods connected to the ends of the two locking blocks away from the limit plates, telescopic springs connected to the ends of the two locking rods away from the locking blocks, trapezoidal top pins connected to the ends of the two telescopic springs away from the locking rods through the ejector cylinder, a fixed seat connected to the top of the ejector cylinder via a connecting rod, fixed blocks connected to both ends of the fixed seat, and an adjustable clamping frame connected to the ends of the two fixed blocks away from the fixed seat via a connecting rod.

[0009] As a preferred embodiment of this utility model, a positioning block is connected to one end of the top of the support column, a support cylinder is connected to the top of the positioning block, an installation rod is connected to the top of the support cylinder, a first trapezoidal cylindrical tube and a second trapezoidal cylindrical tube are respectively connected to the outer wall of the installation rod, a connecting tube is connected to the end of the positioning block away from the support cylinder, a limiting seat is connected to the end of the connecting tube away from the positioning block, and a limiting ring is engaged on the inner side of the limiting seat.

[0010] As a preferred embodiment of this utility model, the guide frame is connected to both ends of the support column by fastening bolts, the guide frame is fixedly connected to the reinforcing column, and the reinforcing column is rotatably connected to one end of the bottom of the ejector cylinder.

[0011] As a preferred embodiment of this utility model, the guide frame is threadedly fixedly connected to the two limiting plates, the two limiting plates are threadedly fixedly connected to the two locking blocks, and the two locking blocks are rotatably connected to the two locking rods.

[0012] As a preferred embodiment of this utility model, the two locking rods pass through both ends of the ejector cylinder and are rotatably connected to the two telescopic springs, and the two telescopic springs are fixedly connected to the two trapezoidal top pins.

[0013] As a preferred embodiment of this utility model, one end of the top of the ejector cylinder is rotatably connected to the fixed seat via a connecting rod, the fixed seat is rotatably connected to the two fixed blocks, and the two fixed blocks are rotatably connected to the adjustable clamping frame via a connecting rod.

[0014] As a preferred embodiment of this utility model, the positioning block is rotatably connected to the support cylinder, the support cylinder is rotatably connected to the mounting rod, the positioning block is rotatably connected to the connecting cylinder, and the connecting cylinder is threadedly fixedly connected to the limiting seat.

[0015] As a preferred embodiment of this utility model, the first trapezoidal cylindrical tube is rotatably connected to the mounting rod, and the second trapezoidal cylindrical tube is slidably connected to the outer wall of the mounting rod. Both the first trapezoidal cylindrical tube and the second trapezoidal cylindrical tube are in contact with one end of the two trapezoidal top pins.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The milling machine tool uses a top-holding device. A guide frame moves within an adjustment slot to adjust the height of the ejector cylinder. The guide frame guides the use of the reinforcing column. Two limiting plates limit the use of the two trapezoidal top pins. Two telescopic springs buffer the movement of the two trapezoidal top pins within the ejector cylinder. The first and second trapezoidal cylindrical tubes contact the two trapezoidal top pins, allowing them to move up and down with the ejector cylinder while being locked to their outer wall. A connecting cylinder uses a limiting seat to support the limiting ring. A fixed seat uses a fixing block to fix the adjustable clamping frame. The adjustable clamping frame clamps and guides the components within the limiting ring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the adjustable clamping component of this utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the trapezoidal top pin block of this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting installation component structure of this utility model.

[0023] In the diagram: 1. Support column; 2. Adjustable clamping assembly; 3. Limiting installation assembly; 201. Adjustment groove; 202. Guide frame; 203. Reinforcing column; 204. Ejector cylinder; 205. Limiting plate; 206. Locking block; 207. Locking rod; 208. Telescopic spring; 209. Trapezoidal top pin block; 210. Fixing seat; 211. Fixing block; 212. Adjustable clamping frame; 301. Positioning block; 302. Support cylinder; 303. Connecting cylinder; 304. Limiting seat; 305. Limiting ring; 306. Mounting rod; 307. First trapezoidal cylindrical tube; 308. Second trapezoidal cylindrical tube. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figures 1-4 As shown, a top holding device for a milling machine tool includes a support column 1, and an adjustable clamping assembly 2 is provided at one end of the support column 1;

[0026] The adjustable clamping assembly 2 includes adjustment slots 201 at both ends of the support column 1. Guide frames 202 are connected to the inner surfaces of the two adjustment slots 201. Reinforcing columns 203 are connected to the inner surfaces of the guide frames 202. Ejector cylinders 204 are connected to the top of the reinforcing columns 203. Limiting plates 205 are connected to both ends of the guide frames 202. Locking blocks 206 are connected to the ends of the two limiting plates 205 closest to the ejector cylinder 204, and locking blocks 206 are connected to the ends of the two locking blocks 206 furthest from the limiting plates 205. Rod 207, two locking rods 207 are connected to a telescopic spring 208 at one end away from the locking block 206, the two telescopic springs 208 are connected to a trapezoidal top pin block 209 through one end of the ejector cylinder 204 at one end away from the locking rod 207, the top end of the ejector cylinder 204 is connected to a fixed seat 210 through a connecting rod, both ends of the fixed seat 210 are connected to fixed blocks 211, and the ends of the two fixed blocks 211 away from the fixed seat 210 are connected to an adjustable clamping frame 212 through a connecting rod;

[0027] The guide frame 202 is connected to both ends of the support column 1 by fastening bolts. The guide frame 202 is fixedly connected to the reinforcing column 203. The reinforcing column 203 is rotatably connected to one end of the bottom of the ejector cylinder 204. The guide frame 202 is threadedly fixedly connected to two limiting plates 205. Both limiting plates 205 are threadedly fixedly connected to two locking blocks 206. The two locking blocks 206 are rotatably connected to two locking rods 207. The two locking rods 207 pass through both ends of the ejector cylinder 204 and are rotatably connected to two telescopic springs 208. The two telescopic springs 208 are fixedly connected to two trapezoidal top pins 209. One end of the top of the ejector cylinder 204 is rotatably connected to the fixed seat 210 by a connecting rod. The fixed seat 210 is rotatably connected to two fixing blocks 211. The two fixing blocks 211 are rotatably connected to the adjustable clamping frame 212 by a connecting rod.

[0028] The guide frame 202 is a rectangular frame structure with sliders on both sides, allowing it to move horizontally within the adjustment groove 201 to adjust the height of the ejector cylinder 204. The ejector cylinder 204 is a cylindrical body, with its upper end fixedly connected to the guide frame 202 and its lower end having an opening to accommodate the trapezoidal top pin block 209. The reinforcing column 203 is a cylindrical rod, with one end fixedly connected to the guide frame 202 and the other end passing through the side wall of the ejector cylinder 204 to enhance the stability of the ejector cylinder 204. Limiting plates 205 are symmetrically arranged on both sides of the inner wall of the ejector cylinder 204 to limit the movement range of the trapezoidal top pin block 209. Telescopic springs 208 are symmetrically arranged inside the ejector cylinder 204, with their two ends connected to the limiting plates 205 and the trapezoidal top pin block 209 respectively, to provide a buffering effect. The trapezoidal top pin block 209 is a trapezoidal block structure, and its slope surface contacts the inner wall of the ejector cylinder 204 to cooperate with the first trapezoidal cylindrical cylinder 307 and the second trapezoidal cylindrical cylinder 308 to achieve limiting and locking.

[0029] A positioning block 301 is connected to one end of the top of the support column 1. A support cylinder 302 is connected to the top of the positioning block 301. An installation rod 306 is connected to the top of the support cylinder 302. A first trapezoidal cylindrical cylinder 307 and a second trapezoidal cylindrical cylinder 308 are connected to the outer wall of the installation rod 306 respectively. A connecting cylinder 303 is connected to the end of the positioning block 301 away from the support cylinder 302. A limit seat 304 is connected to the end of the connecting cylinder 303 away from the positioning block 301. A limit ring 305 is engaged on the inner side of the limit seat 304.

[0030] The positioning block 301 is rotatably connected to the support cylinder 302, the support cylinder 302 is rotatably connected to the mounting rod 306, the positioning block 301 is rotatably connected to the connecting cylinder 303, and the connecting cylinder 303 is threadedly fixed to the limiting seat 304; the first trapezoidal cylindrical cylinder 307 is rotatably connected to the mounting rod 306, and the second trapezoidal cylindrical cylinder 308 is slidably connected to the outer wall of the mounting rod 306; both the first trapezoidal cylindrical cylinder 307 and the second trapezoidal cylindrical cylinder 308 are in contact with one end of the two trapezoidal top pin blocks 209.

[0031] The first trapezoidal cylindrical tube 307 and the second trapezoidal cylindrical tube 308 are cylindrical tubes with trapezoidal cross sections, respectively symmetrically arranged at both ends of the mounting rod 306 for contact with the inclined surface of the trapezoidal top pin block 209. The mounting rod 306 is a cylindrical rod, one end of which is rotatably connected to the support tube 302 and the other end is rotatably connected to the positioning block 301, for realizing the rotation of the trapezoidal cylindrical tube. The connecting tube 303 is a cylindrical body, one end of which is threadedly fixedly connected to the limiting seat 304 and the other end is rotatably connected to the support tube 302. The limiting seat 304 is a square block structure for supporting the connecting tube 303 and the limiting ring 305. The fixing seat 210 is a square block structure with a fixing block 211 on it for fixed connection with the adjustable clamping frame 212. The adjustable clamping frame 212 is a U-shaped frame structure for clamping the components inside the limiting ring 305 to realize the guiding work.

[0032] It should be noted that this utility model is a support device for a milling machine tool. In use, the part to be machined is placed inside the limiting ring 305. The guide frame 202 is manually dragged and slid within the adjusting groove 201 to adjust the height of the ejector cylinder 204, bringing it close to the position where the workpiece needs to be fixed. This ensures that the height of the ejector cylinder 204 matches the length of the workpiece, providing a foundation for subsequent fixing. While the guide frame 202 moves within the adjusting groove, it also guides the reinforcing column 203. The top of the reinforcing column 203... The two limit plates 205 are rotatably connected to the bottom of the ejector cylinder 204 to ensure the stability of the ejector cylinder 204 during height adjustment, prevent the ejector cylinder 204 from shaking during the adjustment process, and improve positioning accuracy. After the height of the ejector cylinder 204 is adjusted to the correct position, the two limit plates 205 limit the movement range of the two trapezoidal top pin blocks 209, preventing them from moving excessively. The two telescopic springs 208 provide a buffering effect for the movement of the trapezoidal top pin blocks 209 within the ejector cylinder 204, reducing impact. Force, through limiting and buffering, ensures the trapezoidal top pin blocks move smoothly and stably, avoiding damage to the workpiece. When the ejector cylinder 204 begins to rise and fall, the two trapezoidal top pin blocks 209 move with the ejector cylinder 204. The inclined surfaces of the trapezoidal top pin blocks 209 contact the ends of the first trapezoidal cylindrical cylinder 307 and the second trapezoidal cylindrical cylinder 308, respectively. Under the action of the extension spring 208, the trapezoidal top pin blocks 209 move to both sides. The first trapezoidal cylindrical cylinder 307 follows the trapezoidal top pin blocks 209 on the mounting rod 30. 6. The outer wall slides to ensure that the trapezoidal top pin block 209 does not shift during the lifting process, which enhances the stability of the fixed structure and prevents the workpiece from loosening during milling. The fixed seat 210 is connected to the adjustable clamping frame 212 through the fixed block 211 to clamp the parts within the limit ring 305. The adjustable clamping frame 212 clamps the workpiece through the limit ring 305. At the same time, the guide frame ensures the stability of the clamping process. The clamping frame firmly fixes the workpiece to prevent it from shifting during milling and improves the machining accuracy.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A support device for a milling machine tool, comprising a support column (1), characterized in that: An adjustable clamping assembly (2) is provided at one end of the support column (1); The adjustable clamping assembly (2) includes adjustment slots (201) disposed at both ends of the support column (1). Guide frames (202) are connected to the inner sides of the two adjustment slots (201). Reinforcing columns (203) are connected to the inner sides of the guide frames (202). An ejector cylinder (204) is connected to the top of the reinforcing column (203). Limiting plates (205) are connected to both ends of the guide frames (202). Locking blocks (206) are connected to the ends of the two limiting plates (205) closest to the ejector cylinder (204). Locking blocks (206) are connected to the ends of the two locking blocks (206) furthest from the limiting plates (205). The locking rods (207) are connected to a telescopic spring (208) at one end away from the locking block (206). The telescopic springs (208) at one end away from the locking rods (207) pass through one side of the ejector cylinder (204) and are connected to a trapezoidal top pin block (209). One end of the top of the ejector cylinder (204) is connected to a fixed seat (210) via a connecting rod. Both ends of the fixed seat (210) are connected to fixed blocks (211). The ends of the two fixed blocks (211) away from the fixed seat (210) are connected to an adjustable clamping frame (212) via a connecting rod.

2. The milling machine tool support device according to claim 1, characterized in that: One end of the top of the support column (1) is connected to a positioning block (301), the top of the positioning block (301) is connected to a support cylinder (302), the top of the support cylinder (302) is connected to an installation rod (306), the outer wall of the installation rod (306) is connected to a first trapezoidal cylindrical cylinder (307) and a second trapezoidal cylindrical cylinder (308), the end of the positioning block (301) away from the support cylinder (302) is connected to a connecting cylinder (303), the end of the connecting cylinder (303) away from the positioning block (301) is connected to a limiting seat (304), and the inner side of the limiting seat (304) is engaged with a limiting ring (305).

3. The milling machine tool support device according to claim 1, characterized in that: The guide frame (202) is connected to both ends of the support column (1) by fastening bolts. The guide frame (202) is fixedly connected to the reinforcing column (203). The reinforcing column (203) is rotatably connected to one end of the bottom of the ejector cylinder (204).

4. The milling machine tool support device according to claim 1, characterized in that: The guide frame (202) is threadedly fixedly connected to the two limiting plates (205), and the two limiting plates (205) are threadedly fixedly connected to the two locking blocks (206). The two locking blocks (206) are rotatably connected to the two locking rods (207).

5. The milling machine tool support device according to claim 1, characterized in that: The two locking rods (207) pass through both ends of the ejector cylinder (204) and are rotatably connected to the two telescopic springs (208). The two telescopic springs (208) are fixedly connected to the two trapezoidal top pins (209).

6. The milling machine tool support device according to claim 1, characterized in that: One end of the top of the ejector cylinder (204) is rotatably connected to the fixed seat (210) via a connecting rod. The fixed seat (210) is rotatably connected to the two fixed blocks (211). The two fixed blocks (211) are rotatably connected to the adjustable clamping frame (212) via a connecting rod.

7. A milling machine tool support device according to claim 2, characterized in that: The positioning block (301) is rotatably connected to the support cylinder (302), the support cylinder (302) is rotatably connected to the mounting rod (306), the positioning block (301) is rotatably connected to the connecting cylinder (303), and the connecting cylinder (303) is threadedly fixedly connected to the limiting seat (304).

8. A milling machine tool support device according to claim 2, characterized in that: The first trapezoidal cylindrical tube (307) is rotatably connected to the mounting rod (306), and the second trapezoidal cylindrical tube (308) is slidably connected to the outer wall of the mounting rod (306). The first trapezoidal cylindrical tube (307) and the second trapezoidal cylindrical tube (308) are both in contact with one end of the two trapezoidal top pins (209).

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