Suspension type copper bar polishing equipment and polishing method

Abstract

The invention discloses suspension type copper bar polishing equipment which is good in applicability, convenient to adjust and ideal in polishing effect and a polishing method. According to the technical scheme, the polishing device comprises a machine frame, a polishing wheel arranged on the machine frame and a polishing table arranged below the polishing wheel, swing arms are connected to the two ends of the polishing wheel, the rear ends of the swing arms are connected to the machine frame through rotating shafts, a suspension type pressure adjusting mechanism is arranged at the rear end of the swing arm on at least one side, and the suspension type pressure adjusting mechanism is connected with the polishing table. The suspension type pressure adjusting mechanism comprises a force arm, a first pressure adjusting screw rod, a second pressure adjusting screw rod, a sliding block, a first spring, a second spring, a crank arm and a motor, the force arm is connected to the rear end of the swing arm, and the sliding block is connected to the force arm and slidably arranged on the first pressure adjusting screw rod.

Description

Technical Field

[0001] The invention belongs to the field of copper busbar manufacturing, and in particular relates to a copper busbar polishing device. Background Art

[0002] Wiring copper busbars are widely used in new energy vehicles, energy storage cabinets and other fields. Before leaving the factory, the wiring copper busbar usually needs to be polished to remove the oxide layer and impurities on its surface. The current automated polishing equipment structure for copper busbars includes: a frame, a polishing wheel on the frame, and a polishing table under the polishing wheel. During polishing: fix the workpiece on the polishing table, and then send it to the polishing wheel for polishing. The disadvantages are: 1. The polishing wheel is usually a fixed structure, and the thickness requirements of the copper busbar are relatively strict during polishing, and the applicability is poor; 2. It is inconvenient to adjust the pressure of the polishing wheel; 3. It is not competent for special-shaped copper busbars of different thicknesses; 4. The polishing mode is single, and polishing in only one direction leads to unsatisfactory polishing effect. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a suspended copper bar polishing device and a polishing method which have good applicability, convenient adjustment and ideal polishing effect.

[0004] To solve the above problems, the technical solution adopted by the present invention includes: a frame, a polishing wheel arranged on the frame and a polishing table arranged below the polishing wheel, characterized in that: swing arms are connected to both ends of the polishing wheel, the rear end of the swing arm is connected to the frame through a rotating shaft, and the rear end of at least one side of the swing arm is provided with a suspended pressure regulating mechanism, the suspended pressure regulating mechanism includes a force arm, a first pressure regulating screw, a second pressure regulating screw, a sliding block, a first spring, a second spring, a crank arm and a motor, the force arm is connected to the rear end of the swing arm, the sliding block is connected to the force arm and is slidably arranged on the first pressure regulating screw, the first pressure regulating screw is longitudinally arranged on one side of the frame, and a first adjusting nut is arranged at the bottom, the second pressure regulating screw is transversely arranged at the bottom of the frame, and a second adjusting nut is arranged at the front end, the first spring and the second spring are sleeved on the first pressure regulating screw, and the opposite ends are against the sliding block, the crank arm is axially connected to the bottom of the frame, and the upper end of the crank arm is connected to the first adjusting nut and the lower end is connected to the second adjusting nut, and the motor drives the second pressure regulating screw to rotate.

[0005] The copper bar polishing device is characterized in that the outer ends of the first spring and the second spring are respectively provided with a third adjusting nut.

[0006] The suspended copper bar polishing equipment is characterized in that a positioning plate for positioning the front end of the copper bar and a quick-release clamp for fixing the rear end of the copper bar are provided at the front end of the polishing table, and a high-frequency left-right swinging mechanism is provided at the bottom of the polishing table.

[0007] The suspended copper bar polishing equipment is characterized in that a lifting and lowering adjusting screw is provided at the bottom of the front end of the polishing table, and the rear end is axially connected to the polishing table bracket.

[0008] The copper bar polishing equipment is characterized in that an adjusting hand wheel is provided at the upper end of the first pressure adjusting screw.

[0009] The suspended copper bar polishing equipment is characterized in that a pressure sensor is provided on one side of the polishing wheel, and the pressure sensor communicates with a controller.

[0010] The suspended copper bar polishing equipment is characterized in that the polishing table bracket is slidably arranged on the frame, and a manual push rod and / or an automatic back and forth reciprocating motion mechanism is provided on the polishing table bracket.

[0011] The suspended copper bar polishing equipment is characterized in that a copper powder collecting bin is provided at the front end of the frame.

[0012] A copper bar polishing method is implemented according to the above-mentioned suspended copper bar polishing device, characterized in that it includes the following steps: Step 1: Fix the copper bar to be polished on the front end of the polishing table; Step 2: Apply pressure to the copper bar surface with a polishing wheel, and control the pressure of the polishing wheel to 0.2-0.6MPa and the speed to 120-180rpm; Step 3: While the polishing wheel is rotating, the polishing table performs high-frequency left-right swing and back-and-forth reciprocating motion, wherein: the frequency of the left-right high-frequency swing is controlled at 5-10Hz, the frequency of the back-and-forth reciprocating motion is controlled at 30-50 times per minute, and the polishing time is controlled at 1-2 minutes.

[0013] The copper busbar polishing method is characterized in that: in step 2, the pressure of the polishing wheel is controlled at 0.4MPa and the rotation speed is controlled at 160rpm; in step 3, the left and right high-frequency oscillation frequency is controlled at 10Hz, the frequency of the back and forth reciprocating motion is controlled at 40 times per minute, and the polishing time is controlled at 1.5 minutes.

[0014] The suspended copper busbar polishing device and polishing method of the present invention have the following advantages: 1. Since the polishing wheel is of a suspended structure, it can be applicable to copper busbars of various thicknesses and has good applicability; 2. Through the pressure adjustment screw, the pressure of the polishing wheel can be adjusted very conveniently, and the adjustment accuracy is very high; 3. Since the polishing wheel is of a suspended structure, it can follow the thickness fluctuation of the workpiece and can realize the polishing of special-shaped copper busbars; 4. There are various polishing modes. While the polishing wheel is rotating, the polishing table will also make high-frequency left and right swings and reciprocating movements back and forth, so that the surface of the copper busbar can be polished more effectively. The glossiness of the surface of the polished copper busbar is much better than that of the traditional polishing mode, and the polishing speed is faster.

[0015] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the suspended copper bar polishing equipment of the present invention; Figure 2 It is a structural schematic diagram of the polishing table of the present invention. DETAILED DESCRIPTION Embodiment 1:

[0017] Reference Figure 1-Figure 2As shown, the suspended copper bar polishing equipment of the present invention comprises a frame 1, a polishing wheel 2 arranged on the frame 1 and a polishing table 3 arranged below the polishing wheel 2. The polishing wheel 2 is usually composed of a central axis, a roller arranged outside the central axis and a wire brush arranged on the surface of the roller. One end of the central axis is connected to a driving motor, and the roller is driven to roll by the driving motor. The two ends of the central axis of the polishing wheel 2 are connected to swing arms 4 through bearings, and the rear end of the swing arm 4 is connected to the frame 1 through a rotating shaft 5. The lifting and lowering of the polishing wheel 2 can be controlled by rotating the swing arm 4. A suspended pressure regulating mechanism is provided at the rear end of the swing arm 4 on one side. The suspended pressure regulating mechanism comprises a force arm 6, a first pressure regulating screw 7, a second pressure regulating screw 8, a sliding block 9, a first spring 10, a second spring 11, a crank arm 12 and a motor 13. The force arm 6 is connected to the rear end of the swing arm 4. The sliding block 9 is connected to the rear end of the force arm 6, and the sliding block 9 is slidably arranged on the first pressure regulating screw 7. The first pressure adjusting screw 7 is longitudinally arranged on one side of the frame 1, and a first adjusting nut 14 is provided at the bottom of the first pressure adjusting screw 7. The second pressure adjusting screw 8 is transversely arranged at the bottom of the frame 1, and a second adjusting nut 15 is provided at the front end of the second pressure adjusting screw 8. The first spring 10 and the second spring 11 are sleeved on the first pressure adjusting screw 7, and the opposite ends of the first spring 10 and the second spring 11 are against the sliding block 9. The crank arm 12 is axially connected to the bottom of the frame 1, and the upper end of the crank arm 12 is connected to the first adjusting nut 14, and the lower end is connected to the second adjusting nut 15. The motor 13 drives the second pressure adjusting screw 8 to rotate through a belt. The motor 13 is usually a stepping motor. During polishing: first adjust the required polishing pressure through the first pressure adjusting screw 7, then fix the copper bar 27 to the front end of the polishing table 3, and then start the motor 13 to drive the second pressure adjusting screw 8 to rotate, and then drive the linkage of the crank arm 12, the first pressure adjusting screw 7, the force arm 6 and the swing arm 4, and finally realize the lifting and lowering control of the polishing wheel 2.

[0018] Preferably, the outer ends of the first spring 10 and the second spring 11 are respectively provided with a third adjusting nut 16. By rotating the third adjusting nut 16, the compression ratio of the first spring 10 and the second spring 11 is adjusted, and then the suspension force of the suspension pressure adjustment mechanism is adjusted to adapt to the polishing of the copper busbars of different strengths (purities).

[0019] Preferably, the front end of the polishing table 3 is provided with a positioning plate 26 for positioning the front end of the copper bar 27 and a quick-release clamp 17 for fixing the rear end of the copper bar 27, and the bottom of the polishing table 3 is provided with a high-frequency left-right swing mechanism 18 for driving the left-right high-frequency swing of the polishing table 3. To achieve the fixation of the copper bar 27 and polishing at different angles. The left-right swing mechanism refers to a device that realizes the periodic left-right swing of an object in the horizontal direction through a specific mechanical design and power transmission principle, which is a well-known technology.

[0020] Preferably, a lifting adjustment screw 19 is provided at the bottom of the front end of the polishing table 3, and the rear end of the polishing table 3 is axially connected to the polishing table bracket 20. This is to adjust the height of the polishing table 3 to better adapt to workpieces of different thicknesses.

[0021] Preferably, an adjusting hand wheel 21 is provided at the upper end of the first pressure adjusting screw 7 to facilitate the rotation of the first pressure adjusting screw 7 .

[0022] Preferably, a pressure sensor 22 is provided on one side of the polishing wheel 2, and the pressure sensor 22 communicates with the controller 28. The pressure sensor 22 is used to detect the working pressure of the polishing wheel 2 in real time, and is displayed by the controller 28 so that the user can understand the current working pressure.

[0023] Preferably, the polishing table bracket 20 is slidably arranged on the frame 1, and a manual push rod 23 and an automatic front-to-back reciprocating motion mechanism 24 are provided on the polishing table bracket 20. The polishing table bracket 20 is provided with a manual push rod 23 or an automatic front-to-back reciprocating motion mechanism 24 to drive the front-to-back reciprocating motion of the polishing table bracket 20 for better polishing and also for loading or unloading.

[0024] Preferably, a copper powder collecting bin 25 is provided at the front end of the frame 1 to recover the discarded copper powder, which is more environmentally friendly and energy-saving. Embodiment 2:

[0025] Reference Figure 1-Figure 2 As shown, a copper bar polishing method is implemented according to the suspended copper bar polishing device described in Example 1, comprising the following steps: Step 1: Fix the copper bar to be polished on the front end of the polishing table; Step 2: Apply pressure to the copper bar surface with the polishing wheel, and the pressure of the polishing wheel is controlled at 0.2-0.6MPa, and the speed is controlled at 120-180rpm; Step 3: While the polishing wheel is rotating, the polishing table performs high-frequency left-right swing and back-and-forth reciprocating motion, wherein: the frequency of the left-right high-frequency swing is controlled at 5-10Hz, the frequency of the back-and-forth reciprocating motion is controlled at 30-50 times per minute, and the polishing time is controlled at 1-2 minutes.

[0026] Preferably, in step 2, the pressure of the polishing wheel is controlled at 0.4 MPa and the rotation speed is controlled at 160 rpm; in step 3, the left and right high-frequency oscillation frequency is controlled at 10 Hz, the frequency of the back and forth reciprocating motion is controlled at 40 times per minute, and the polishing time is controlled at 1.5 minutes.

[0027] Through the above method, the best polishing effect of the copper busbar 27 is achieved.

[0028] As mentioned above, the present invention is not limited in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the structures and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A suspended copper bar polishing device, comprising a frame (1), a polishing wheel (2) arranged on the frame (1), and a polishing table (3) arranged below the polishing wheel (2), characterized in that: The polishing wheel (2) is connected to a swing arm (4) at both ends, the rear end of the swing arm (4) is connected to the frame (1) via a rotating shaft (5), and a suspended pressure regulating mechanism is provided at the rear end of at least one side of the swing arm (4), the suspended pressure regulating mechanism comprising a force arm (6), a first pressure regulating screw (7), a second pressure regulating screw (8), a sliding block (9), a first spring (10), a second spring (11), a crank arm (12) and a motor (13), the force arm (6) is connected to the rear end of the swing arm (4), the sliding block (9) is connected to the force arm (6) and is slidably arranged on the first pressure regulating screw (7), and the first pressure regulating screw (8) is provided with a suspension pressure regulating mechanism. The screw rod (7) is longitudinally arranged on one side of the frame (1) and is provided with a first adjusting nut (14) at the bottom. The second pressure adjusting screw rod (8) is transversely arranged on the bottom of the frame (1) and is provided with a second adjusting nut (15) at the front end. The first spring (10) and the second spring (11) are sleeved on the first pressure adjusting screw rod (7) and the opposite ends thereof abut against the sliding block (9). The crank arm (12) is axially connected to the bottom of the frame (1), and the upper end of the crank arm (12) is connected to the first adjusting nut (14) and the lower end is connected to the second adjusting nut (15). The motor (13) drives the second pressure adjusting screw rod (8) to rotate.

2. The copper bar polishing equipment according to claim 1, characterized in that: The outer ends of the first spring (10) and the second spring (11) are respectively provided with a third adjusting nut (16).

3. The suspended copper bar polishing device according to claim 1 is characterized in that: The front end of the polishing table (3) is provided with a positioning plate (26) for positioning the front end of the copper bar and a quick-release clamp (17) for fixing the rear end of the copper bar, and the bottom of the polishing table (3) is provided with a high-frequency left-right swing mechanism (18).

4. The suspended copper bar polishing device according to claim 1 is characterized in that: The polishing table (3) has a lifting and lowering adjustment screw (19) at the bottom of the front end, and a rear end axially connected to the polishing table bracket (20).

5. The copper bar polishing equipment according to claim 1, characterized in that: An adjusting hand wheel (21) is provided at the upper end of the first pressure adjusting screw (7).

6. The suspended copper bar polishing device according to claim 1 is characterized in that: A pressure sensor (22) is provided on one side of the polishing wheel (2), and the pressure sensor (22) communicates with a controller (28).

7. The suspended copper bar polishing device according to claim 4 is characterized in that: The polishing table bracket (20) is slidably arranged on the frame (1), and a manual push rod (23) and / or an automatic forward and backward reciprocating motion mechanism (24) are provided on the polishing table bracket (20).

8. The suspended copper bar polishing device according to claim 1 is characterized in that: A copper powder collecting bin (25) is provided at the front end of the frame (1).

9. A copper bar polishing method, implemented by the suspended copper bar polishing device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Fix the copper bar to be polished on the front end of the polishing table; Step 2: Apply pressure to the copper bar surface with a polishing wheel, and control the pressure of the polishing wheel to 0.2-0.6MPa and the speed to 120-180rpm; Step 3: While the polishing wheel is rotating, the polishing table performs high-frequency left-right swing and back-and-forth reciprocating motion, wherein: the frequency of the left-right high-frequency swing is controlled at 5-10Hz, the frequency of the back-and-forth reciprocating motion is controlled at 30-50 times per minute, and the polishing time is controlled at 1-2 minutes.

10. The copper busbar polishing method according to claim 9, characterized in that: In step 2, the pressure of the polishing wheel is controlled at 0.4 MPa and the rotation speed is controlled at 160 rpm; in step 3, the left and right high-frequency oscillation frequency is controlled at 10 Hz, the frequency of the back and forth reciprocating motion is controlled at 40 times per minute, and the polishing time is controlled at 1.5 minutes.

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