Multi-linkage precision numerical control machine tool

Abstract

The utility model discloses a multi-linkage precision numerical control machine tool, and particularly relates to the technical field of numerical control machine tools, the multi-linkage precision numerical control machine tool comprises an equipment base, a power main shaft assembly, knife rest driving assemblies, a stock bin assembly and a material receiving assembly, the knife rest driving assemblies are arranged on two sides of the power main shaft assembly, one side is connected with the stock bin assembly, and the other side receives the material receiving assembly. Automatic feeding is achieved through pneumatic material selecting and feeding, double-end precision machining is conducted through servo driving of tool rests at the two ends, and multi-part sequential linkage control is achieved. The double-head precision machining device has the advantages of being high in automation degree and machining precision, efficient and stable in feeding, convenient and reasonable in material receiving and the like, is suitable for double-head precision machining of bars and pipes, and effectively solves the problems that traditional single-head machining is adopted, manual feeding and overturning efficiency is low, and precision is poor.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool technical field more specifically, the utility model relates to a kind of multi-link precision numerical control machine tool. BACKGROUND

[0002] In the field of mechanical processing, numerical control machine tools are widely used. With the continuous development of manufacturing industry, higher requirements are put forward for the machining precision and production efficiency of parts. Traditional single-head machining numerical control machine tools can only process one end of the workpiece at a time. After processing one end, the workpiece needs to be manually flipped for processing the other end. This processing method not only has low efficiency, but also introduces errors during manual operation, making it difficult to ensure the consistency of machining precision and unable to meet the production needs of high-precision parts.

[0003] In terms of manual feeding, manual operation is slow and labor-intensive, and long-term work can lead to worker fatigue, affecting the accuracy and efficiency of feeding. At the same time, manual feeding cannot accurately match the processing rhythm of the numerical control machine tool, restricting the improvement of overall production efficiency. Moreover, manual flipping of the workpiece not only increases labor costs, but also may cause damage to the workpiece due to improper operation, further affecting product quality.

[0004] Some existing numerical control machine tools have achieved automation to some extent, but when processing rod and pipe materials that require processing on both ends, there are still problems such as complex equipment structure, inaccurate linkage control, and imperfect feeding and collecting systems. For example, the feeding mechanism of some equipment cannot stably and efficiently send raw materials in the hopper to the processing position, leading to processing interruption; the collecting system cannot well order the finished products after processing, easily causing product accumulation and damage. These problems limit the development and application of numerical control machine tools in specific processing fields.

[0005] Therefore, a multi-link precision numerical control machine tool is proposed. UTILITY MODEL CONTENT

[0006] To overcome the above-mentioned defects of the prior art, the utility model provides a multi-link precision numerical control machine tool to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a multi-link precision numerical control machine tool, comprising a device base, a power spindle assembly is arranged at the top end of the device base, a tool holder driving assembly is arranged on both sides of the power spindle assembly, a hopper assembly is arranged on one side of one tool holder driving assembly, and a collecting assembly is arranged on one side of the other tool holder driving assembly.

[0008] Preferably, the power spindle assembly comprises a sliding base plate, a power drive module, a spindle support, a belt and a spindle motor, the equipment base is provided with linear guides in parallel, the sliding base plate is slidably installed on the two linear guides, the sliding base plate is connected with the power drive module installed on the equipment base at one end, the sliding base plate supports the spindle support, the spindle support is installed with the spindle motor at the top end, the spindle motor is installed with a drive pulley at the output end, the spindle support is rotatably installed with a rotating drum, the rotating drum is connected with the drive pulley through the belt, and the rotating drum is installed with pneumatic clamping jaws at both ends.

[0009] Preferably, the tool holder driving assembly comprises a driving screw rod module, a tool holder body, a tool and a sliding table base, the driving screw rod module is installed on the equipment base, the sliding table base is installed at the moving end of the top end of the driving screw rod module, the sliding table base is installed with the tool holder body, and the tool holder body is installed with the tool.

[0010] Preferably, the stock bin assembly comprises a stock bin support, a guide plate, a ratchet module, a first feeding module, a second feeding module and a positioning and pressing module, the stock bin support is installed on the equipment base, the stock bin support is installed with the stock bin at the top end, the stock bin is provided with a feeding port at one side and the bottom end, the stock bin support is matched with the ratchet module, the ratchet module is matched with the guide plate at the top end, the first feeding module is arranged on the inner side of the feeding port, the positioning and pressing module is arranged at the top end on the outer side of the feeding port, and the second feeding module is arranged below the positioning and pressing module and installed on the stock bin support.

[0011] Preferably, the ratchet module comprises a material selecting air cylinder, a rack, a gear, a ratchet body, a spring, a pawl and a tab, the two tabs are coaxially connected with a rotating shaft, the rotating shaft is rotatably installed on the stock bin, the rotating shaft is installed with the ratchet body at one end, the ratchet body is sleeved with the gear, the gear and the ratchet body are connected through the spring and the pawl, the gear is engagedly connected with the rack at the bottom end, and the rack is connected with the material selecting air cylinder at one end.

[0012] Preferably, the first feeding module comprises a fixed plate, a feeding air cylinder, a connecting plate, a cross arm plate and a pressing plate, the fixed plate is installed on the stock bin support, the fixed plate is installed with the feeding air cylinder at the top end, the feeding air cylinder is fixed with the cross arm plate through the connecting plate, and the cross arm plate is installed with the pressing plate at both ends.

[0013] Preferably, the second feeding module comprises a guide groove seat, a rodless air cylinder and a tapered push plate, the guide groove seat is installed on one side of the stock bin support, the rodless air cylinder is installed in the guide groove seat, a guide groove is formed between the rodless air cylinder and the top of the guide groove seat, and the tapered push plate is installed at the output moving end of the rodless air cylinder.

[0014] Preferably, the material receiving assembly comprises a material receiving guide frame, a material receiving box and a material receiving support, the material receiving guide frame is installed in the material receiving box, and the material receiving box is supported by the material receiving support.

[0015] The technical effects and advantages of the utility model are as follows:

[0016] 1. The machine tool can automatically complete the whole process of bar material or pipe material feeding, processing and discharging through the cooperative work of the stock bin assembly, the power spindle assembly, the tool holder driving assembly and the material receiving assembly, the bar material is sequentially sent into the power spindle assembly through the cooperation of the ratchet module, the first feeding module and the second feeding module in the stock bin assembly, and the finished product can be automatically pushed to the material receiving assembly after processing, manual frequent operation is not needed, production efficiency is improved, and labor cost is reduced.

[0017] 2. The bar material can be processed in all directions through the installation of pneumatic clamps at both ends of the rotating drum of the power spindle assembly, the rotation of the rotating drum is driven by the main shaft motor through a belt, the movement of the tool holder body and the tool is accurately controlled by the driving screw module of the tool holder driving assembly, the tool feed amount can be accurately adjusted, the precision processing of the two ends of the bar material is realized, product quality stability is ensured, and the demand for high-precision processing is met.

[0018] 3. The combination of the material selection cylinder, the rack, the gear, the ratchet, the spring and the pawl of the ratchet module makes the one-way rotation of the dial piece, ensures continuous and efficient feeding, avoids the phenomenon of returning material, the first feeding module and the second feeding module work cooperatively to accurately send the bar material into the power spindle, the positioning and pressing module presses and positions the bar material during the feeding process, the feeding accuracy and stability are further improved, and the influence of feeding errors on processing is reduced.

[0019] 4. The buffer limiting pad block arranged in the material receiving guide frame of the material receiving assembly is linked with the power spindle, the limiting is opened after the safe falling of the finished product, the finished product can be smoothly discharged along the guide frame, the finished product is prevented from being damaged by falling, the material receiving box quantitatively receives and the upper edge can be turned over, the finished product is conveniently taken out, subsequent arrangement and transportation are facilitated, and the integrity and convenience of the processing flow are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the utility model.

[0021] Figure 2 It is a side view three-dimensional structure schematic view of the utility model.

[0022] Figure 3 It is a structure schematic view of the stock bin assembly of the utility model.

[0023] Figure 4 It is a structure schematic view of the ratchet module of the utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the first feeding module of this utility model.

[0025] Figure 6 This is a schematic diagram of the structure of the second feeding module of this utility model.

[0026] The attached figures are labeled as follows: 1. Equipment base; 2. Power spindle assembly; 201. Sliding base plate; 202. Power drive module; 203. Spindle support; 204. Belt; 205. Spindle motor; 3. Tool post drive assembly; 301. Drive screw module; 302. Tool post body; 303. Tool; 304. Slide table base; 4. Hopper assembly; 401. Hopper support; 402. Guide plate; 403. Ratchet module; 4031. Material selection cylinder; 4032. Rack; 4033. Gear; 40 34. Ratchet body; 4035. Spring; 4036. Pawl; 4037. Paddle; 404. First feeding module; 4041. Fixing plate; 4042. Feeding cylinder; 4043. Connecting plate; 4044. Crossbeam plate; 4045. Pressure plate; 405. Second feeding module; 4051. Guide slot seat; 4052. Rodless cylinder; 4053. Tapered push plate; 406. Positioning and clamping module; 5. Receiving assembly; 501. Receiving guide frame; 502. Receiving box; 503. Receiving bracket. Detailed Implementation

[0027] 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 scope of protection of the present utility model.

[0028] As attached Figures 1-6 The multi-linkage precision CNC machine tool shown includes a base 1, a power spindle assembly 2 is provided at the top of the base 1, tool post drive assemblies 3 are provided on both sides of the power spindle assembly 2, a material hopper assembly 4 is provided on one side of one tool post drive assembly 3, and a material receiving assembly 5 is provided on the other side of the tool post drive assembly 3.

[0029] In practice, the bar stock is supplied through the hopper assembly 4 and fed into the power spindle assembly 2, causing both ends of the bar stock to protrude from both sides of the power spindle assembly 2. The power spindle assembly 2 operates in conjunction with the tool post drive assemblies 3 on both sides to process both ends of the bar stock synchronously. After processing is completed, the hopper assembly 4 feeds the bar stock again, so that the processed bar stock is pushed into the receiving assembly 5 for collection, while new bar stock enters the power spindle assembly 2 for fixing and continued processing, thus creating a cycle. This achieves fully automated precision machining of bar or tube materials with automatic feeding, synchronous processing at both ends, and automatic unloading.

[0030] The power spindle assembly 2 includes a sliding base plate 201, a power drive module 202, a spindle support 203, a belt 204, and a spindle motor 205. Linear guide rails are arranged parallel to each other on the equipment base 1. The sliding base plate 201 is slidably mounted on the two linear guide rails. One end of the sliding base plate 201 is connected to the power drive module 202 mounted on the equipment base 1. The spindle support 203 is supported on the sliding base plate 201. The spindle motor 205 is mounted on the top of the spindle support 203. A drive pulley is mounted on the output end of the spindle motor 205. A rotating drum is rotatably mounted inside the spindle support 203. A belt 204 is connected between the rotating drum and the drive pulley. Pneumatic grippers are mounted on both ends of the rotating drum.

[0031] In practice, the power drive module 202 operates, which allows the sliding base plate 201 to move back and forth on the linear guide rail, thereby adjusting the position of the rotating drum. This allows the rotating drum to receive materials or process bar stock in conjunction with the tool holder drive assembly 3. Meanwhile, the spindle motor 205 operates, which drives the rotating drum to rotate via the belt 204. This causes the bar stock held by the pneumatic grippers inside the rotating drum to rotate as well, thus enabling the tool holder drive assembly 3 to perform omnidirectional processing of both ends of the bar stock.

[0032] The tool holder drive assembly 3 includes a drive screw module 301, a tool holder body 302, a cutting tool 303, and a slide base 304. The drive screw module 301 is mounted on the equipment base 1. The bottom of the slide base 304 is mounted on the movable end at the top of the drive screw module 301. The tool holder body 302 is mounted on the slide base 304, and the cutting tool 303 is mounted on the tool holder body 302.

[0033] In practice, by driving the lead screw module 301 to operate, the slide base 304 moves, which in turn allows the tool holder body 302 to move accordingly, thereby enabling control of the feed of the tool 303 and facilitating adjustment of the processing length of the bar stock.

[0034] The hopper assembly 4 includes a hopper support 401, a guide plate 402, a ratchet module 403, a first feeding module 404, a second feeding module 405, and a positioning and clamping module 406. The hopper support 401 is mounted on the equipment base 1. A hopper is mounted on the top of the hopper support 401. A feeding port is opened at the bottom of one side of the hopper. The ratchet module 403 is fitted inside the hopper support 401. The guide plate 402 is fitted on the top of the ratchet module 403. The first feeding module 404 is installed inside the feeding port. The positioning and clamping module 406 is installed on the top of the outside of the feeding port. The second feeding module 405 is installed on the hopper support 401 below the positioning and clamping module 406.

[0035] In practice, the bar stock is guided by the guide plate 402. When the ratchet module 403 is running, the bar stock slides into the two paddles 4037 inside the ratchet module 403. Then, by rotating, it moves to the feeding port at the bottom of the hopper. The first feeding module 404 operates, pushing the bar stock from the feeding port onto the second feeding module 405. Then, the positioning and clamping module 406 presses down and positions the bar stock to ensure that it enters the second feeding module 405. After the positioning and clamping module 406 resets, the second feeding module 405 feeds the bar stock into the rotating drum, thereby realizing automatic feeding.

[0036] The ratchet module 403 includes a material selection cylinder 4031, a rack 4032, a gear 4033, a ratchet body 4034, a spring 4035, a pawl 4036, and a paddle 4037. Two paddles 4037 are provided, and the two paddles 4037 are coaxially connected to a rotating shaft. The rotating shaft is rotatably mounted on the hopper. The ratchet body 4034 is mounted on one end of the rotating shaft. The gear 4033 is sleeved on the outside of the ratchet body 4034. The gear 4033 and the ratchet body 4034 are connected by the spring 4035 and the pawl 4036. The bottom end of the gear 4033 is meshed with the rack 4032. One end of the rack 4032 is connected to the material selection cylinder 4031.

[0037] In practice, the material selection cylinder 4031 extends and retracts, which, with the cooperation of gear 4033, spring 4035 and pawl 4036, causes the ratchet body 4034 to rotate in one direction. This causes the two paddles 4037 to rotate in only one direction, thus ensuring continuous and efficient feeding, avoiding material backflow, and improving feeding efficiency and convenience.

[0038] The first feeding module 404 includes a fixed plate 4041, a feeding cylinder 4042, a connecting plate 4043, a crossbeam 4044, and a pressure plate 4045. The fixed plate 4041 is installed on the hopper support 401. The feeding cylinder 4042 is installed at the top of the fixed plate 4041. The extension end of the feeding cylinder 4042 is fixed to the crossbeam 4044 through the connecting plate 4043. Pressure plates 4045 are installed at both ends of the crossbeam 4044.

[0039] In practice, the operation of the feeding cylinder 4042 enables the pressure plates 4045 at both ends of the crossbeam 4044 to extend and retract from the feeding port. When extended, the bar stock is pushed and pressed for automatic feeding, while when retracted, the next bar stock in the hopper is sent out to achieve automatic discharge.

[0040] The second feeding module 405 includes a guide slot seat 4051, a rodless cylinder 4052, and a tapered push plate 4053. The guide slot seat 4051 is installed on one side of the hopper support 401. The rodless cylinder 4052 is installed inside the guide slot seat 4051, and a guide slot is formed between the rodless cylinder 4052 and the top of the guide slot seat 4051. The tapered push plate 4053 is installed at the output moving end of the rodless cylinder 4052.

[0041] In practice, after the bar stock is positioned in the guide groove, the rodless cylinder 4052 operates, causing the tapered pusher plate 4053 to move and push one end of the bar stock, thereby pushing the bar stock into the drum and realizing automatic feeding. This, together with the positioning and clamping module 406, straightens the bar stock, improves the feeding accuracy of the bar stock, and at the same time avoids collisions between the bar stock and the drum during feeding.

[0042] The receiving assembly 5 includes a receiving guide frame 501, a receiving box 502, and a receiving bracket 503. The receiving guide frame 501 is installed inside the receiving box 502, and the receiving box 502 is supported by the receiving bracket 503. The receiving guide frame 501 is provided with a buffer limiting pad. The receiving box 502 is quantitatively set and its top can be flipped.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-linkage precision CNC machine tool, comprising a base (1), characterized in that: The top of the equipment base (1) is provided with a power spindle assembly (2), and tool holder drive assemblies (3) are provided on both sides of the power spindle assembly (2). A material hopper assembly (4) is provided on one side of one tool holder drive assembly (3), and a material receiving assembly (5) is provided on the other side of the tool holder drive assembly (3).

2. The multi-linkage precision CNC machine tool according to claim 1, characterized in that: The power spindle assembly (2) includes a sliding base plate (201), a power drive module (202), a spindle bracket (203), a belt (204), and a spindle motor (205). Linear guide rails are arranged parallel on the equipment base (1). The sliding base plate (201) is slidably mounted on the two linear guide rails. One end of the sliding base plate (201) is connected to the power drive module (202) mounted on the equipment base (1). The spindle bracket (203) is supported on the sliding base plate (201). The spindle motor (205) is mounted on the top of the spindle bracket (203). A drive pulley is mounted on the output end of the spindle motor (205). A rotating drum is rotatably mounted inside the spindle bracket (203). A belt (204) is connected between the rotating drum and the drive pulley. Pneumatic grippers are mounted on both ends of the rotating drum.

3. The multi-linkage precision CNC machine tool according to claim 2, characterized in that: The tool holder drive assembly (3) includes a drive screw module (301), a tool holder body (302), a cutting tool (303), and a slide base (304). The drive screw module (301) is mounted on the equipment base (1). The bottom of the slide base (304) is mounted on the moving end at the top of the drive screw module (301). The tool holder body (302) is mounted on the slide base (304), and the cutting tool (303) is mounted on the tool holder body (302).

4. A multi-linkage precision CNC machine tool according to claim 3, characterized in that: The hopper assembly (4) includes a hopper support (401), a guide plate (402), a ratchet module (403), a first feeding module (404), a second feeding module (405), and a positioning and clamping module (406). The hopper support (401) is mounted on the equipment base (1). A hopper is mounted on the top of the hopper support (401). A feeding port is opened on the bottom side of one side of the hopper. A ratchet module (403) is installed inside the hopper support (401). A guide plate (402) is installed on the top of the ratchet module (403). A first feeding module (404) is installed inside the feeding port. A positioning and clamping module (406) is installed on the top of the feeding port. A second feeding module (405) is installed on the hopper support (401) below the positioning and clamping module (406).

5. A multi-linkage precision CNC machine tool according to claim 4, characterized in that: The ratchet module (403) includes a material selection cylinder (4031), a rack (4032), a gear (4033), a ratchet body (4034), a spring (4035), a pawl (4036), and a paddle (4037). There are two paddles (4037), and the two paddles (4037) are coaxially connected to a rotating shaft. The rotating shaft is rotatably mounted on the hopper. The ratchet body (4034) is installed at one end of the rotating shaft. The gear (4033) is sleeved on the outside of the ratchet body (4034). The gear (4033) is connected to the ratchet body (4034) through the spring (4035) and the pawl (4036). The bottom end of the gear (4033) is meshed with the rack (4032). One end of the rack (4032) is connected to the material selection cylinder (4031).

6. A multi-linkage precision CNC machine tool according to claim 5, characterized in that: The first feeding module (404) includes a fixed plate (4041), a feeding cylinder (4042), a connecting plate (4043), a crossbeam plate (4044), and a pressure plate (4045). The fixed plate (4041) is installed on the hopper support (401). The feeding cylinder (4042) is installed at the top of the fixed plate (4041). The crossbeam plate (4044) is fixed to the telescopic end of the feeding cylinder (4042) through the connecting plate (4043). Pressure plates (4045) are installed at both ends of the crossbeam plate (4044).

7. A multi-linkage precision CNC machine tool according to claim 6, characterized in that: The second feeding module (405) includes a guide slot seat (4051), a rodless cylinder (4052), and a tapered push plate (4053). The guide slot seat (4051) is installed on one side of the hopper support (401). The rodless cylinder (4052) is installed inside the guide slot seat (4051), and the rodless cylinder (4052) and the top of the guide slot seat (4051) form a guide slot. The tapered push plate (4053) is installed on the output moving end of the rodless cylinder (4052).

8. A multi-linkage precision CNC machine tool according to claim 7, characterized in that: The receiving assembly (5) includes a receiving guide frame (501), a receiving box (502), and a receiving bracket (503). The receiving guide frame (501) is installed inside the receiving box (502), and the receiving box (502) is supported by the receiving bracket (503).

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