Rotary-cut removing device for center gate

Abstract

The utility model discloses a central sprue rotary cutting removal device which comprises a bottom plate and a vertical milling machine arranged on the bottom plate, and further comprises a workpiece seat and a reamer, a blanking port is formed in the bottom plate, the workpiece seat is detachably arranged on the bottom plate, a positioning hole corresponding to the blanking port is formed in the surface of the workpiece seat, and the reamer is arranged in the positioning hole. Positioning columns are arranged on the upper surface of the workpiece seat around the circumferential direction of the positioning hole; according to the utility model, the workpiece seat matched with the workpiece is arranged on the bottom plate through the existing vertical milling machine, the workpiece is positioned, and the central sprue is cut through the reamer, so that compared with the traditional sprue removing mode, the reamer is adopted for rotary cutting, the steps are simplified, and the flatness of the sprue removing surface is ensured; the problems of material shortage and deformation of products caused by external force breaking are effectively avoided; and production equipment and jigs are simple, and the investment cost is low.

Description

Technical Field

[0001] The utility model relates to the field of die casting, in particular to a central gate rotary cutting and removing device. Background Art

[0002] Automobile generator aluminum alloy bracket, such as Figure 1 As shown, it adopts a three-plate mold center gate system and semi-solid high vacuum die-casting. After the mold is opened, the center gate remains on the product. Since the height of the center gate is relatively high and the thickness of most inner gates is also relatively thick, if the removal plan is unreasonable, the product will be short of material or even deformed, resulting in batch scrapping of products.

[0003] The gate removal solution is generally to use a trimming die to remove it or a sawing machine to remove it.

[0004] Sawing and Removal by Sawing Machine: Sawing and removal can be done in the automated die-casting island or in the later process. First, the direct casting section of the center gate is removed by sawing, but there will be a residual disc section, which is removed by machining in the later process. Sawing and Removal of Center Gate: A combination of sawing and machining is required to remove it, which means that the product will carry the center gate from the die-casting line to the completion of machining. The product's circulation and processing steps are increased, the product's production cycle is extended, and the product's manufacturing cost is increased. Therefore, the sawing and removal solution is suitable for small-batch production and cannot meet the needs of large-scale production.

[0005] Therefore, it is necessary to design a device for removing the center gate. Utility Model Content

[0006] In view of the defects of the above prior art, the main purpose of the utility model is to overcome the shortcomings of the prior art, and discloses a center gate rotary cutting removal device, including a base plate and a vertical milling machine arranged on the base plate, and also including a workpiece seat and a reamer, a blanking port is arranged on the base plate, the workpiece seat is detachably arranged on the base plate, a positioning hole corresponding to the blanking port is arranged on the surface of the workpiece seat, and a positioning column is arranged circumferentially around the positioning hole on the upper surface of the workpiece seat;

[0007] The reamer includes a reamer body and an axially extending connecting portion. The reamer body is a cylinder. A plurality of protrusions are arranged at equal intervals around the circumference of the reamer body. A chip removal groove is formed between adjacent protrusions. A cutting edge is arranged at the lower end of the protrusion. A clearance groove is recessed at the lower end of the reamer body.

[0008] Furthermore, the angle α between the protrusion and the vertical plane is set to 10°-15°.

[0009] Furthermore, fixing grooves are arranged at intervals on both sides of the workpiece seat, and fixing holes corresponding to the fixing grooves are arranged on the bottom plate, and the fixing grooves and the fixing holes are connected by screws.

[0010] Furthermore, the fixing groove is through-through from top to bottom and is provided with an opening on one side.

[0011] Furthermore, three fixing grooves are arranged at intervals on both sides of the workpiece seat.

[0012] Furthermore, a workpiece sensing device is also provided on the bottom plate, and the workpiece sensing device is used to sense whether there is a workpiece on the workpiece seat.

[0013] Furthermore, the workpiece sensing device includes two sets of mounting brackets, an infrared receiver and an infrared transmitter. The infrared receiver and the infrared transmitter are fixed to the base plate through the mounting brackets. The infrared receiver and the infrared transmitter are arranged on both sides of the workpiece seat, and the detection light beam is always fast to the positioning hole.

[0014] Furthermore, the mounting bracket includes a support, a pillar and a guide sleeve, the support is fixed on the base plate, the pillar is vertically arranged on the support, the guide sleeve is sleeved on the pillar, and the guide sleeve is locked and fixed to the pillar by screws; the infrared receiver and the infrared transmitter are installed on the guide sleeve, and the guide sleeve is used to adjust the height and angular position of the infrared receiver and the infrared transmitter.

[0015] Beneficial effects achieved by the utility model:

[0016] The utility model uses an existing vertical milling machine to set a workpiece seat that matches the workpiece on a bottom plate, positions the workpiece, and cuts the center gate through a reamer. Compared with the traditional gate removal method, the utility model adopts reamer rotary cutting to simplify the steps and ensure the flatness of the gate removal surface; effectively avoids the problem of product shortage and deformation caused by external force breaking; the production equipment and fixtures are simple, and the investment cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of the workpiece;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of a center gate rotary cutting and removing device of the utility model;

[0019] Figure 3 is a schematic diagram of the three-dimensional structure of the reamer;

[0020] The reference numerals are as follows:

[0021] 1. Base plate, 2. Vertical milling machine, 3. Workpiece seat, 4. Reamer, 5. Screws, 11. Blanking port, 31. Positioning hole, 32. Positioning column, 33. Fixing groove, 41. Reamer body, 42. Connecting part, 43. Bump, 44. Chip groove, 45. Cutting edge, 46. Avoiding groove, 61. Mounting bracket, 62. Infrared receiver, 63. Infrared transmitter, 611. Support, 612. Pillar, 613. Guide sleeve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] A center gate rotary cutting removal device, such as Figure 1-Figure 3 As shown, it includes a base plate 1 and a vertical milling machine 2 arranged on the base plate 1, and also includes a workpiece seat 3 and a reamer 4. The reamer 4 is installed on the spindle of the vertical milling machine 2, and the spindle motor drives the reamer 4 to rotate, thereby rotary cutting the center gate of the workpiece. A blanking port 11 is arranged on the base plate 1, and the workpiece seat 3 is detachably arranged on the base plate 1. A positioning hole 31 corresponding to the blanking port 11 is arranged on the surface of the workpiece seat 3, and a positioning column 32 is circumferentially arranged around the positioning hole on the upper surface of the workpiece seat 3; in this embodiment, three positioning columns 32 are arranged, corresponding to the three holes on the workpiece, and the workpiece is fixed by the three positioning columns 32 to prevent the workpiece from rotating when the reamer 4 rotary cuts; at the same time, the center gate is centered by the positioning hole 31 to ensure that the center gate corresponds to the position of the reamer 4.

[0024] The reamer 4 includes a reamer body 41, which is a cylindrical structure. A connecting portion 42 is extended from the upper end of the reamer body 41, and the reamer 4 is connected to the vertical milling machine 2 through the connecting portion 42. A plurality of protrusions 43 are arranged at equal intervals in the circumferential direction of the reamer body 41, and a chip removal groove 44 for rapid chip removal is formed between adjacent protrusions. A cutting edge 45 is arranged at the lower end of the protrusion, and a clearance groove 46 is recessed at the lower end of the reamer body 41. The reamer 4 is driven to rotate rapidly by the vertical milling machine 2, and the center gate is cut by the cutting edge 45, and the chips are quickly discharged from the chip removal groove 44.

[0025] In one embodiment, if Figure 1-Figure 3 As shown, the angle α between the protrusion 43 and the vertical plane is set to 10°-15°.

[0026] In one embodiment, if Figure 1-Figure 3 As shown, fixing grooves 33 are arranged at intervals on both sides of the workpiece seat 3, and fixing holes corresponding to the fixing grooves 33 are arranged on the bottom plate 1, and the fixing grooves 33 and the fixing holes are connected by screws 5.

[0027] In the above embodiment, if Figure 1-Figure 3 As shown, the fixing groove 33 is through-through and has an opening on one side. The open fixing groove 33 is provided to facilitate the installation of the workpiece seat 3 and the base plate 1, and the position of the workpiece seat 3 is adjusted horizontally along the opening direction of the fixing groove 33.

[0028] In the above embodiment, if Figure 1-Figure 3 As shown, three fixing grooves 33 are arranged at intervals on both sides of the workpiece seat 3 .

[0029] In one embodiment, if Figure 1-Figure 3 As shown, a workpiece sensing device 6 is also provided on the bottom plate 1 , and the workpiece sensing device 6 is used to sense whether there is a workpiece on the workpiece seat 3 .

[0030] Specifically, Figure 1-Figure 3 As shown, the workpiece sensing device 6 includes two sets of mounting brackets 61, an infrared receiver 62 and an infrared transmitter 63. The infrared receiver 62 and the infrared transmitter 63 are fixed on the bottom plate 1 through the mounting bracket 61. The infrared receiver 62 and the infrared transmitter 63 are arranged on both sides of the workpiece seat 3, and the detection beam spans the positioning hole 31. The infrared receiver 62 and the infrared transmitter 63 are arranged on the left and right sides. When there is no workpiece on the workpiece seat 3, the infrared light rays are not blocked, and the detection signal is "empty position", and a workpiece can be put down. When there is a workpiece on the workpiece seat 3, the infrared light rays are blocked by the workpiece, and the detection signal is "in position", and a workpiece will not be put down. Whether it is manual material placement or robot material placement, the setting of the workpiece sensing device 6 can prevent the next workpiece from being put in when the previous workpiece has not been taken away, causing damage to the workpiece, fixture, and equipment.

[0031] In the above embodiment, if Figure 1-Figure 3 As shown, the mounting bracket 61 includes a support 611, a pillar 612 and a guide sleeve 613. The support 611 is fixed on the bottom plate 1, the pillar 612 is vertically arranged on the support 611, the guide sleeve 613 is sleeved on the pillar 612, and the guide sleeve 613 and the pillar 612 are locked and fixed by screws; the infrared receiver 62 and the infrared transmitter 63 are installed on the guide sleeve 613, and the height and angle position of the infrared receiver 62 and the infrared transmitter 63 are adjusted by the guide sleeve 613. The pillar 612 is a cylinder, so the guide sleeve 613 can rotate around the pillar 612 and move up and down to adjust to a proper position to improve the accuracy of infrared sensing.

[0032] When the utility model is used, Figure 1-Figure 3As shown, the workpiece is placed on the workpiece seat 3 and aligned with the positioning column 32. At this time, the workpiece sensing device 6 senses the workpiece and starts the equipment; if the workpiece is not sensed, the equipment cannot be started. The vertical milling machine 2 controls the reamer 4 to rotate and drives the reamer 4 to move toward the workpiece to cut the center gate. After the center gate is separated from the workpiece, it falls along the drop opening to the waste frame for collection. After completion, the vertical milling machine 2 resets and waits for the next workpiece.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced by equivalents without departing from the spirit and scope of the present invention, they should be included in the scope of protection of the claims of the present invention.

Claims

1. A center gate peeling and removing device, comprising a base plate and a vertical milling machine arranged on the base plate, characterized in that: It also includes a workpiece seat and a reamer, wherein a blanking opening is arranged on the bottom plate, the workpiece seat is detachably arranged on the bottom plate, a positioning hole corresponding to the blanking opening is arranged on the surface of the workpiece seat, and a positioning column is arranged circumferentially around the positioning hole on the upper surface of the workpiece seat; The reamer includes a reamer body and an axially extending connecting portion. The reamer body is a cylinder. A plurality of protrusions are arranged at equal intervals around the circumference of the reamer body. A chip removal groove is formed between adjacent protrusions. A cutting edge is arranged at the lower end of the protrusion. A clearance groove is recessed at the lower end of the reamer body.

2. A center gate peeling and removing device according to claim 1, characterized in that: The angle α between the protrusion and the vertical plane is set to 10°-15°.

3. A center gate peeling and removing device according to claim 1, characterized in that: Fixing grooves are arranged at intervals on both sides of the workpiece seat, and fixing holes corresponding to the fixing grooves are arranged on the bottom plate, and the fixing grooves and the fixing holes are connected by screws.

4. A center gate peeling and removing device according to claim 3, characterized in that: The fixing groove is through-through from top to bottom and is provided with an opening on one side.

5. The center gate peeling and removing device according to claim 3, characterized in that: Three fixing grooves are arranged at intervals on both sides of the workpiece seat.

6. The center gate peeling and removing device according to claim 1, characterized in that: A workpiece sensing device is also arranged on the bottom plate, and the workpiece sensing device is used to sense whether there is a workpiece on the workpiece seat.

7. A center gate peeling and removing device according to claim 6, characterized in that: The workpiece sensing device includes two groups of mounting brackets, an infrared receiver and an infrared transmitter. The infrared receiver and the infrared transmitter are fixed to the base plate through the mounting brackets. The infrared receiver and the infrared transmitter are arranged on both sides of the workpiece seat, and the detection light beam is always fast to the positioning hole.

8. The center gate peeling and removing device according to claim 7, characterized in that: The mounting bracket includes a support, a pillar and a guide sleeve. The support is fixed to the base plate, the pillar is vertically arranged on the support, and the guide sleeve is sleeved on the pillar. The guide sleeve is fixed to the base plate by screws. The infrared receiver and the infrared transmitter are installed on the guide sleeve. The guide sleeve is used to adjust the height and angular position of the infrared receiver and the infrared transmitter.

Images