Motor friction plate integral forming die and forming method

Abstract

The invention discloses a motor friction plate integral forming die and a forming method.The die comprises a cavity, an upper limiting block, a lower limiting block, an upper pressing head, a lower pressing head, an upper rubber cushion block and a lower rubber cushion block, the upper limiting block, the lower limiting block, the upper pressing head, the lower pressing head, the upper rubber cushion block and the lower rubber cushion block are arranged in the cavity, the lower rubber cushion block is arranged at the bottom of the cavity, and the lower limiting block is placed above the lower rubber cushion block; a lower pressing head is arranged between the lower limiting block and the side wall of the cavity; the lower part of the lower pressing head is contacted with the cavity; a motor friction plate steel body, an upper limiting block and an upper rubber cushion block are sequentially placed above the lower limiting block, and an upper pressing head is arranged above the motor friction plate steel body and located between the upper limiting block and the side wall of the cavity. Compared with the prior art, the die has the advantages that the method for integrally forming the motor friction plate through the die is simple in procedure, high in production efficiency and low in labor intensity, and the problems that in the prior art, the friction plate pressing process is complex and tedious, and the production efficiency is low are effectively solved.

Description

Technical Field

[0001] The invention relates to an integral forming die and a forming method for a motor friction plate. Background Art

[0002] Motor refers to an electromagnetic mechanical device that uses electromagnetic induction as the theoretical basis for electromechanical energy conversion. It is widely used in the fields of industry, agriculture, national defense, and public facilities. The motor friction plate uses the friction characteristics to slow down or stop the motor normally. It is an important component in the motor and is directly related to the performance and safety of the motor.

[0003] The friction plate is mainly made of a mixture of bonding system, reinforcement system and friction lubrication system, and needs to be molded. However, the existing technology is to form the friction plate separately and then bond and solidify it with the metal matrix. The process is complicated and the production efficiency is low. Therefore, it is very important to develop a one-piece molding mold for motor friction plates. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention proposes an integrated motor friction plate molding die and molding method, aiming to solve the problems of complicated and cumbersome friction plate pressing process and low production efficiency in the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a motor friction plate one-piece molding mold, including a cavity and an upper limit block, a lower limit block, an upper pressure head, a lower pressure head, an upper rubber pad and a lower rubber pad arranged in the cavity, wherein: the lower rubber pad is arranged at the bottom of the cavity, the lower limit block is placed above the lower rubber pad, the lower pressure head is arranged between the lower limit block and the side wall of the cavity, and the lower side of the lower pressure head is in contact with the cavity; the motor friction plate steel body, the upper limit block and the upper rubber pad are placed in sequence above the lower limit block, and the upper pressure head is arranged above the motor friction plate steel body, and is located between the upper limit block and the side wall of the cavity.

[0006] Furthermore, a cushion block is arranged on the upper pressure head.

[0007] Furthermore, the upper pressure head is connected to the cushion block via bolts.

[0008] Furthermore, the upper surface of the upper rubber pad is higher than the upper surface of the pad.

[0009] Furthermore, a circular hole for inserting a screw during demoulding is provided at the bottom of the cavity.

[0010] Furthermore, a handle is provided on the outer side wall of the cavity.

[0011] Furthermore, the lower end surface of the upper limit block is tightly fitted with the upper end surface of the motor friction plate steel body.

[0012] Furthermore, the upper end surface of the lower limit block is tightly fitted with the lower end surface of the motor friction plate steel body.

[0013] The present invention also provides a molding method based on the motor friction plate integral molding die, comprising the following steps:

[0014] Step 1: Place the lower rubber pad into the bottom of the cavity, place the lower limit block above the lower rubber pad, and set a lower pressure head between the lower limit block and the side wall of the cavity;

[0015] Step 2: Place the first layer of friction material on top of the lower pressure head, then place the motor friction plate steel body, then place the upper limit block on top of the motor friction plate steel body, then place the second layer of friction material on top of the motor friction plate steel body, then place the upper pressure head on top of the second layer of friction material, set a pad on the upper pressure head, and place an upper rubber pad on top of the upper limit block;

[0016] Step 3: Start the press and press the upper rubber pad downward. The upper rubber pad is first compressed to firmly fix the upper limit block on the motor friction plate steel body to ensure that there is no overflow above the motor friction plate; then the lower rubber pad is also compressed to buffer the motor friction plate steel body downward, so that the lower limit block is tightly combined with the motor friction plate steel body to ensure that there is no overflow below the motor friction plate;

[0017] Step 4: The press continues to move downward, and the pad is forced to drive the upper pressure head to move downward, and cooperate with the lower pressure head to press the two layers of friction material;

[0018] Step 5: After the motor friction plate material is pressed into shape, release the pressure, raise the press, lift the cavity, insert the screw into the circular hole below the cavity, and press the press downward to complete the demoulding.

[0019] Compared with the prior art, the present invention has the following positive effects:

[0020] The present invention arranges an upper limit block, a lower limit block and a rubber pad. During pressing, the lower rubber pad is stressed and pressed downward, so that the lower limit block moves downward, and the friction material is pressed and formed below the steel body without overflowing; at the same time, the upper rubber pad is stressed and pressed downward, so that the upper limit block moves downward, and the friction material is pressed and formed above the steel body without overflowing; finally, the mold cavity is lifted, a screw is placed in the circular hole below it, and a tile-shaped steel sheet is placed on the upper edge of the mold cavity, and demolding is completed by pressing downward. The method of integrally forming the motor friction plate using the mold of the present invention has a simple process, high production efficiency and low labor intensity. Compared with the existing technology of separately forming the friction plate and then bonding and curing it with the metal substrate, the motor friction plate integral forming mold of the present invention has the advantages of simple forming process, high production efficiency and reduced labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0022] Figure 1 It is a schematic diagram of the internal structure of a motor friction plate integral molding die of the present invention;

[0023] Figure 2 It is a schematic diagram of the external structure of a motor friction plate integral molding die of the present invention;

[0024] Figure 3 It is a schematic diagram of the bottom of the cavity of a motor friction plate integrally formed mold of the present invention;

[0025] The reference numerals in the figure include: 1, upper rubber pad; 2, pad; 3, upper limit block; 4, upper pressure head; 5, motor friction plate steel body; 6, lower pressure head; 7, lower limit block; 8, lower rubber pad; 9, cavity. DETAILED DESCRIPTION

[0026] A motor friction plate integral molding die, such as Figure 1 and Figure 2 As shown, it includes: an upper rubber pad 1, a pad 2, an upper limit block 3, an upper pressure head 4, a lower pressure head 6, a lower limit block 7, a lower rubber pad 8, a cavity 9, etc., wherein:

[0027] An upper rubber pad 1 is placed above the upper limit block 3, and the lower part of the upper limit block 3 is connected to the motor friction plate steel body 5. The upper part of the lower limit block 7 is connected to the motor friction plate steel body 5, and the lower rubber pad 8 is placed below the lower limit block. The upper pressure head 4 is connected to the pad 2 by bolts, mainly to increase the stroke, and the lower pressure head 6 is in contact with the cavity 9.

[0028] Furthermore, the upper rubber pad 1 is compressed during pressing, and the upper limit block 3 is firmly fixed on the motor friction plate steel body 5, so that no material overflows above the motor friction plate.

[0029] Furthermore, the lower rubber pad 8 is compressed during pressing, the motor friction plate steel body 5 has downward buffer space, and the lower limit block 7 is tightly combined with the motor friction plate steel body 5, so that no material overflows under the motor friction plate.

[0030] like Figure 3 As shown, a round hole is arranged at the bottom of the cavity 9 for inserting a screw rod to facilitate demoulding. A handle is arranged on the outer side wall of the cavity 9 to facilitate the lifting of the mold.

[0031] The method for integrally molding a motor friction plate using the mold of the present invention comprises the following steps:

[0032] Step 1: Place the lower rubber pad 8 at the bottom of the cavity 9, place the lower limit block 7 above the lower rubber pad 8, and set the lower pressure head 6 between the lower limit block 7 and the side wall of the cavity 9;

[0033] Step 2: Place the first layer of friction material on top of the lower pressure head 6, then place the motor friction plate steel body 5, then place the upper limit block 3 on top of the motor friction plate steel body 5, and then place the second layer of friction material that is exactly the same as the first layer of friction material on top of the motor friction plate steel body 5 at a position corresponding to the first layer of friction material;

[0034] Step 3: Place an upper pressure head 4 on the second layer of friction material, set a cushion block 2 on the upper pressure head 4, and place an upper rubber cushion block 1 on the upper limit block 3;

[0035] After this step is completed, the stacking height of the upper rubber pad 1, the upper limit block 3, the motor friction plate steel body 5, the lower limit block 7 and the lower rubber pad 8 is higher than the stacking height of the pad 2, the upper pressure head 4, the two layers of friction material and the lower pressure head 6, that is, the upper surface of the upper rubber pad 1 is higher than the upper surface of the pad 2;

[0036] Step 4, start the equipment, press down the upper rubber pad 1, the upper rubber pad 1 is first compressed, and the upper limit block 3 is firmly fixed on the motor friction plate steel body 5 to ensure that there is no overflow above the motor friction plate; then the lower rubber pad 8 is also compressed, and the motor friction plate steel body 5 has a downward buffer space, so that the lower limit block 7 is tightly combined with the motor friction plate steel body 5 to ensure that there is no overflow below the motor friction plate;

[0037] Step 5: After the upper rubber pad 1 is compressed for a certain distance, the pad 2 is forced to drive the upper pressure head 4 to move downward, and with the cooperation of the lower pressure head 6, the two layers of friction material are pressed;

[0038] Step 6: After the motor friction plate material is pressed and formed, release the pressure, raise the press, lift the cavity 9, put the screw in the circular hole below the cavity, place a tile-shaped steel sheet on the upper edge of the cavity 9, and press the press downward to complete demoulding.

[0039] The working principle of the present invention is as follows: when in use, the lower pressure head 6, the lower rubber pad 8 and the lower limit block 7 are placed in the cavity 9 in sequence, and then the friction material is placed on the top of the lower pressure head 6, followed by the motor friction plate steel body 5, and then the friction material is placed on the motor friction plate steel body 5, and finally the limit block 3, the upper pressure head 4 and the upper rubber pad 1 are placed in sequence, the equipment is started, the upper rubber pad 1 is pressed downward, and the pad 2 and the upper pressure head 4 move downward, and the motor friction plate material is pressed into shape, the pressure is relieved, the press is raised, the cavity 9 is lifted, a screw is placed in the circular hole below it, and a tile-shaped steel sheet is placed on the upper edge of the cavity 9, and demolding can be completed by pressing downward.

Claims

1. A motor friction plate integral molding die, characterized in that: It includes a cavity and an upper limit block, a lower limit block, an upper pressure head, a lower pressure head, an upper rubber pad and a lower rubber pad arranged in the cavity, wherein: the lower rubber pad is arranged at the bottom of the cavity, the lower limit block is placed above the lower rubber pad, the lower pressure head is arranged between the lower limit block and the side wall of the cavity, and the lower side of the lower pressure head is in contact with the cavity; the motor friction plate steel body, the upper limit block and the upper rubber pad are placed in sequence above the lower limit block, and the upper pressure head is arranged above the motor friction plate steel body and is located between the upper limit block and the side wall of the cavity.

2. The motor friction plate integral molding die according to claim 1, characterized in that: A spacer is provided on the upper pressure head.

3. The motor friction plate integral molding die according to claim 2, characterized in that: The upper portion of the upper pressure head is connected to the cushion block via bolts.

4. The motor friction plate integral molding die according to claim 2, characterized in that: The upper surface of the upper rubber pad is higher than the upper surface of the pad.

5. The motor friction plate integral molding die according to claim 1, characterized in that: A round hole for inserting a screw during demoulding is provided at the bottom of the cavity.

6. The motor friction plate integral molding die according to claim 1, characterized in that: A handle is arranged on the outer side wall of the cavity.

7. The motor friction plate integral molding die according to claim 1, characterized in that: The lower end surface of the upper limit block is tightly fitted with the upper end surface of the motor friction plate steel body.

8. The motor friction plate integral molding die according to claim 1, characterized in that: The upper end surface of the lower limit block is tightly fitted with the lower end surface of the motor friction plate steel body.

9. A molding method based on the motor friction plate integral molding mold according to claim 1, characterized in that: The steps include: Step 1: Place the lower rubber pad into the bottom of the cavity, place the lower limit block above the lower rubber pad, and set a lower pressure head between the lower limit block and the side wall of the cavity; Step 2: Place the first layer of friction material on top of the lower pressure head, then place the motor friction plate steel body, then place the upper limit block on top of the motor friction plate steel body, then place the second layer of friction material on top of the motor friction plate steel body, then place the upper pressure head on top of the second layer of friction material, set a pad on the upper pressure head, and place an upper rubber pad on top of the upper limit block; Step 3: Start the press and press the upper rubber pad downward. The upper rubber pad is first compressed to firmly fix the upper limit block on the motor friction plate steel body to ensure that there is no overflow above the motor friction plate; then the lower rubber pad is also compressed to buffer the motor friction plate steel body downward, so that the lower limit block is tightly combined with the motor friction plate steel body to ensure that there is no overflow below the motor friction plate; Step 4: The press continues to move downward, and the pad is forced to drive the upper pressure head to move downward, and cooperate with the lower pressure head to press the two layers of friction material; Step 5: After the motor friction plate material is pressed into shape, release the pressure, raise the press, lift the cavity, insert the screw into the circular hole below the cavity, and press the press downward to complete the demoulding.

10. The method for forming a motor friction plate integrally formed mold according to claim 9, characterized in that: When demolding, place a tile-shaped steel sheet on the upper edge of the cavity.

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