Polishing and grinding device for precision casting

Abstract

The polishing and grinding device comprises a support and a detection assembly, a grinding motor is fixedly installed at the bottom of the front end of the support, a transmission shaft is fixedly installed at the output end of the grinding motor, and the outer wall of the transmission shaft is rotationally connected with a polishing belt. The detection assembly used for detecting the middle collapse polishing force when the polishing belt works is installed on the right side of the middle of the support, the detection assembly comprises a fixing plate, a supporting plate, a pressure sensor, a frame and a supporting wheel, the supporting plate is fixedly installed at the front end of the right side of the fixing plate, and the pressure sensor is vertically arranged at the front end of the supporting plate; a frame is arranged at the front end of the pressure sensor, the front end of the frame is rotationally connected with a supporting wheel, and the supporting wheel is rotationally connected with the polishing belt. According to the polishing and grinding device for the precision casting, the contact force between a workpiece and a polishing belt can be detected, meanwhile, the angle of the support can be adjusted during grinding, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing and grinding devices, in particular to a polishing and grinding device for precision castings. Background Art

[0002] Precision casting refers to the general term for the process of obtaining castings with precise dimensions. Compared with the traditional sand casting process, the castings obtained by precision casting are more precise in size and have better surface finish. It includes: investment casting, ceramic casting, metal casting, pressure casting, and lost foam casting. In order to improve the appearance and surface treatment performance of the equipment, the equipment shell will be polished. Generally, the polishing work is completed by a grinder. The grinders widely used in the market can complete the polishing of flat surfaces.

[0003] For example, the patent document with application number CN201822231433.4 discloses a grinding and polishing device. This utility model uses a grinding and polishing device, which has a relatively large grinding area, better grinding effect, higher working efficiency, and lower production cost. However, when the precision casting polishing device is used, it is impossible to detect the force applied to the casting during grinding. This causes the casting to be subjected to excessive force and to be damaged during long-term grinding, thereby affecting the subsequent use effect.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a polishing and grinding device for precision castings is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a polishing and grinding device for precision castings to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polishing and grinding device for precision castings, comprising a bracket and a detection component, a polishing motor is fixedly installed on the bottom front end of the bracket, and a transmission shaft is fixedly installed on the output end of the polishing motor, the outer wall of the transmission shaft is rotatably connected to a polishing belt, and the detection component for polishing the middle collapse of the polishing belt during operation is installed on the right side of the middle part of the bracket, the detection component comprises a fixed plate, a support plate, a pressure sensor, a frame and a support wheel, a support plate is fixedly installed on the front end of the right side of the fixed plate, and a pressure sensor is vertically arranged on the front end of the support plate, a frame is provided at the front end of the pressure sensor, and the front end of the frame is rotatably connected to the support wheel, and the support wheel is rotatably connected to the polishing belt.

[0007] Preferably, a shell is provided on the outside of the polishing belt, and a slide groove is provided on the top of the bracket.

[0008] Preferably, a scale is provided on the right side of the chute, and a movable block is provided inside the chute.

[0009] Preferably, a pointer is fixedly mounted on the front end of the movable block, a screw is rotatably connected to the top of the movable block, and a handle is fixedly mounted on the top of the screw.

[0010] Preferably, a fixing seat is fixedly installed on the bottom of the grinding motor, and a support is rotatably connected to the bottom of the fixing seat.

[0011] Preferably, the support is arranged in a "C"-shaped structure as a whole, and a fixing pin is inserted into the right end of the support.

[0012] Preferably, a tension spring is sleeved on the left outer wall of the fixing pin, and a pulling block is fixedly installed on the left end of the fixing pin.

[0013] Compared with the prior art, the beneficial effect of the present invention is that the polishing and grinding device for precision castings can not only detect the contact force between the workpiece and the polishing belt, but also adjust the angle of the bracket during grinding, thereby improving the convenience of use.

[0014] 1. The utility model uses the setting of the detection component so that when the workpiece contacts and squeezes the polishing belt, the support wheel and frame provided at the rear end of the polishing belt are pushed backward. As the frame moves backward, it squeezes the pressure sensor. When the pressure received by the pressure sensor is too high, an alarm is triggered to remind the staff to make adjustments to prevent scratches on the workpiece during polishing.

[0015] 2. The utility model cooperates with the setting of the fixing pin by the bracket, so that the pull block controls the fixing pin to be pulled out to the left, so that the bracket can be flipped back and forth to adjust the angle, and the pull block is released to allow the tension spring to pull the fixing pin into the corresponding groove of the fixing seat, so that the angle of the bracket is fixed and the comfort of use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the fixed plate and frame structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the detection component structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the support and the fixing seat of the utility model.

[0020] In the figure: 1. Bracket; 2. Grinding motor; 3. Drive shaft; 4. Polishing belt; 5. Detection component; 501. Fixed plate; 502. Support plate; 503. Pressure sensor; 504. Frame; 505. Support wheel; 6. Housing; 7. Slide; 8. Scale; 9. Movable block; 10. Pointer; 11. Screw; 12. Handle; 13. Fixed seat; 14. Support; 15. Fixed pin; 16. Tension spring; 17. Pull block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1-Figure 3 As shown, a polishing and grinding device for precision castings includes a bracket 1 and a detection component 5. A polishing motor 2 is fixedly installed at the bottom front end of the bracket 1, and a transmission shaft 3 is fixedly installed at the output end of the polishing motor 2. The outer wall of the transmission shaft 3 is rotatably connected to the polishing belt 4. The detection component 5 for detecting the polishing force of the middle collapse of the polishing belt 4 during operation is installed on the right side of the middle of the bracket 1. The detection component 5 includes a fixed plate 501, a support plate 502, a pressure sensor 503, a frame 504 and a support wheel 505. The support plate 502 is fixedly installed at the front end of the right side of the fixed plate 501, and the pressure sensor 503 is vertically arranged at the front end of the support plate 502. The front end of the pressure sensor 503 is provided with a frame 504, and the front end of the frame 504 is rotatably connected to the support wheel 505, and the support wheel 505 is rotatably connected to the polishing belt 4.

[0023] By adopting the above technical solution, when the workpiece contacts and squeezes the polishing belt 4, the support wheel 505 and the frame 504 set at the rear end of the polishing belt 4 are pushed backward, and the frame 504 squeezes the pressure sensor 503 while moving backward. When the pressure received by the pressure sensor 503 is too large, an alarm will be triggered to remind the staff to make adjustments to prevent scratches on the workpiece during grinding.

[0024] like Figure 4 As shown, a shell 6 is provided on the outside of the polishing belt 4, and a slide groove 7 is provided on the top of the bracket 1.

[0025] By adopting the above technical solution, the slide groove 7 facilitates the movement of the pointer 10 at the front end of the bracket 1.

[0026] Furthermore, a scale 8 is provided on the right side of the chute 7 , and a movable block 9 is provided inside the chute 7 .

[0027] By adopting the above technical solution, the scale 8 shows the height of the top of the polishing belt 4, so that the length of the polishing belt 4 can be seen intuitively.

[0028] Furthermore, a pointer 10 is fixedly mounted on the front end of the movable block 9 , and a screw rod 11 is rotatably connected to the top of the movable block 9 , and a handle 12 is fixedly mounted on the top of the screw rod 11 .

[0029] By adopting the above technical solution, the handle 12 is convenient for controlling the rotation of the screw 11 and adjusting the position of the movable block 9.

[0030] Furthermore, a fixing seat 13 is fixedly installed at the bottom of the grinding motor 2 , and a support 14 is rotatably connected to the bottom of the fixing seat 13 .

[0031] By adopting the above technical solution, the support 14 and the entire device are fixed in a suitable position.

[0032] Furthermore, the support 14 is configured as a C-shaped structure, and a fixing pin 15 is inserted into the right end of the support 14 .

[0033] By adopting the above technical solution, the fixing pin 15 is used to control the tilt angle of the bracket 1.

[0034] Furthermore, a tension spring 16 is sleeved on the left outer wall of the fixing pin 15 , and a pull block 17 is fixedly installed on the left end of the fixing pin 15 .

[0035] By adopting the above technical solution, the pull block 17 can easily control the left and right movement of the fixing pin 15.

[0036] Working principle: When using the polishing and grinding device for precision castings, first control the movable block 9 and the corresponding roller through the handle 12 to straighten the top of the polishing belt 4, and then push the support wheel 505 and the frame 504 set at the rear end of the polishing belt 4 to move backward when the workpiece contacts and squeezes the polishing belt 4. While the frame 504 moves backward, it squeezes the pressure sensor 503. When the pressure received by the pressure sensor 503 is too large, it will trigger an alarm to remind the staff to adjust to prevent scratches during grinding. Before grinding, the fixing pin 15 can be controlled to be pulled out to the left by the pull block 17, so that the bracket 1 can be flipped back and forth to adjust the angle, and the pull block 17 is released to allow the tension spring 16 to pull the fixing pin 15 into the corresponding groove of the fixing seat 13, so that the angle of the bracket 1 is fixed, thereby improving the comfort of use. This is the working principle of the polishing and grinding device for precision castings.

Claims

1. A polishing and grinding device for precision castings, comprising a bracket (1) and a detection component (5), characterized in that: A polishing motor (2) is fixedly mounted on the bottom front end of the bracket (1), and a transmission shaft (3) is fixedly mounted on the output end of the polishing motor (2); the outer wall of the transmission shaft (3) is rotatably connected to a polishing belt (4); a detection assembly (5) for detecting the polishing force of the middle collapse of the polishing belt (4) during operation is mounted on the right side of the middle part of the bracket (1); the detection assembly (5) comprises a fixed plate (501), a supporting plate (502), a pressure sensor (503), a frame (504) and a support wheel (505); the front end of the right side of the fixed plate (501) is fixedly mounted with the supporting plate (502), and the front end of the supporting plate (502) is vertically provided with a pressure sensor (503); the front end of the pressure sensor (503) is provided with a frame (504), and the front end of the frame (504) is rotatably connected to a support wheel (505); the support wheel (505) is rotatably connected to the polishing belt (4).

2. A polishing and grinding device for precision casting according to claim 1, characterized in that: The polishing belt (4) is provided with a shell (6) on the outside, and a sliding groove (7) is provided on the top of the bracket (1).

3. A polishing and grinding device for precision casting according to claim 2, characterized in that: A scale (8) is provided on the right side of the slide groove (7), and a movable block (9) is provided inside the slide groove (7).

4. A polishing and grinding device for precision casting according to claim 3, characterized in that: A pointer (10) is fixedly mounted on the front end of the movable block (9), a screw rod (11) is rotatably connected to the top of the movable block (9), and a handle (12) is fixedly mounted on the top of the screw rod (11).

5. The polishing and grinding device for precision casting according to claim 1, characterized in that: A fixing seat (13) is fixedly installed on the bottom of the grinding motor (2), and a support (14) is rotatably connected to the bottom of the fixing seat (13).

6. A polishing and grinding device for precision casting according to claim 5, characterized in that: The support (14) is arranged in a "C"-shaped structure as a whole, and a fixing pin (15) is inserted into the right end of the support (14).

7. A polishing and grinding device for precision casting according to claim 6, characterized in that: A tension spring (16) is sleeved on the left outer wall of the fixing pin (15), and a pull block (17) is fixedly installed on the left end of the fixing pin (15).

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