Silencing sheet pressing and positioning device

Abstract

The utility model is applicable to the technical field of brake pad processing, and provides a silencing sheet press-fit positioning device, which comprises a press-fitting vacuum clamp and a press-fitting bottom plate, the press-fitting vacuum clamp is positioned right above the press-fitting bottom plate, a silencing sheet is adsorbed at the bottom of the press-fitting vacuum clamp, and a friction sheet and a steel backing are stacked at the top end of the press-fitting bottom plate; the press-fitting vacuum clamp and the press-fitting bottom plate are used for pressing the silencing sheet on the steel backing, and the brake pad assembly is assembled; by arranging the floating spring positioning pin, the silencing piece can be rapidly positioned on the press-fitting vacuum clamp conveniently, the periphery of the silencing piece can be limited, it is guaranteed that the silencing piece is attached to the steel backing, follow-up press-fitting machining is facilitated, meanwhile, resetting is conducted after press-fitting is completed, and follow-up repeated positioning operation is facilitated; through the combination of all the positioning pins, the silencing piece can be accurately positioned, it is ensured that the silencing piece is located at the correct position before press fit, the silencing piece is prevented from deviating, and the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to brake pad processing, in particular to a sound -absorbing sheet press -fitting positioning device. BACKGROUND

[0002] Brake pad, also called brake pad, in the brake system of the car, brake pad is the most critical safety parts, and all brake effects are good or bad are played decisive role by brake pad. Brake pad generally is by steel sheet, sound -absorbing sheet, bonding heat -insulating layer and friction block constitutes, and the heat -insulating layer is by the material of not transmitting heat and is composed, and the purpose is heat insulation, sound -absorbing sheet absorbs vibration energy through elastic material (such as rubber, silica gel or composite material), and inhibits noise, and the friction block is by friction material, adhesive and is composed, and is extruded on the brake disc and brake drum to produce friction when braking, thereby achieving the purpose of vehicle deceleration brake.

[0003] In the traditional sound -absorbing sheet press -fitting device, through artificial clamping, the sound -absorbing sheet is easy to deviate, and the positioning is not accurate, resulting in product defects, and affecting the noise reduction effect of brake pad. UTILITY MODEL CONTENTS

[0004] The utility model provides a sound -absorbing sheet press -fitting positioning device, and aims at solving the problem that in the traditional sound -absorbing sheet press -fitting device, through artificial clamping, the sound -absorbing sheet is easy to deviate, and the positioning is not accurate, resulting in product defects, and affecting the noise reduction effect of brake pad.

[0005] The utility model is such implementation, a sound -absorbing sheet press -fitting positioning device, including pressure equipment vacuum clamp and pressure equipment bottom plate, the pressure equipment vacuum clamp is located the upside of pressure equipment bottom plate, the bottom of pressure equipment vacuum clamp adsorbs sound -absorbing sheet, and the top of pressure equipment bottom plate is stacked with friction sheet and steel back.

[0006] Preferably, the pressure equipment bottom plate is provided with a plurality of first positioning pins at both ends of the friction sheet and the steel back.

[0007] The beneficial effects of the above further scheme are: limiting the two ends of the friction sheet and the steel back, and facilitating the rapid positioning of the friction sheet and the steel back on the pressure equipment bottom plate.

[0008] Preferably, the pressure equipment bottom plate is provided with two groups of second positioning pins symmetrically, the second positioning pins are matched with the through holes on the steel back, and the two groups of second positioning pins are inserted into the through holes of the steel back.

[0009] The beneficial effects of the above further scheme are: facilitating the rapid positioning of the steel back on the pressure equipment bottom plate through the second positioning pins.

[0010] Preferably, the pressure equipment bottom plate is provided with two groups of third positioning pins symmetrically on both sides of the second positioning pins.

[0011] The beneficial effect of the further scheme is that the positioning effect is further improved.

[0012] Preferably, the side wall of the press-fitting vacuum clamp is provided with an air pipe joint, and the bottom of the press-fitting vacuum clamp is provided with two groups of vacuum sealing elements, which are connected with the air pipe joint.

[0013] The beneficial effect of the further scheme is that the vacuum sealing element can adsorb the sound-absorbing sheet, so that the subsequent press-fitting assembly is facilitated.

[0014] Preferably, the press-fitting vacuum clamp is provided with a plurality of groups of floating spring positioning pins around the sound-absorbing sheet, and the floating spring positioning pin comprises a positioning pin sleeve, the positioning pin sleeve is mounted on the press-fitting vacuum clamp, a press-fitting positioning pin is slidably connected to the positioning pin sleeve, and a spring is arranged in the positioning pin sleeve.

[0015] The beneficial effect of the further scheme is that the sound-absorbing sheet is attached to the steel back, subsequent press-fitting processing is facilitated, the press-fitting is reset after completion, and subsequent repeated positioning operation is facilitated.

[0016] Preferably, the press-fitting vacuum clamp is provided with two groups of rectangular positioning blocks symmetrically.

[0017] The beneficial effect of the further scheme is that the sound-absorbing sheet and the steel back are quickly aligned for press-fitting.

[0018] Compared with the prior art, the beneficial effect of the utility model is that the sound-absorbing sheet press-fitting positioning device of the utility model is used for press-fitting the sound-absorbing sheet on the steel back and assembling the brake sheet assembly through the press-fitting vacuum clamp and the press-fitting bottom plate; the sound-absorbing sheet is quickly positioned on the press-fitting vacuum clamp through the floating spring positioning pin, the sound-absorbing sheet is limited around, the sound-absorbing sheet is attached to the steel back, subsequent press-fitting processing is facilitated, the press-fitting is reset after completion, subsequent repeated positioning operation is facilitated; the sound-absorbing sheet is accurately positioned through the combination of the positioning pins, the sound-absorbing sheet is ensured to be in the correct position before press-fitting, the sound-absorbing sheet is prevented from deviating, and the production efficiency and product quality are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is a side view structural schematic view of Figure 1 ; It is a side view structural schematic view of

[0021] Figure 3 It is a structural schematic view of the press-fitting vacuum clamp (sound-absorbing sheet) in Figure 2 ; It is a structural schematic view of the press-fitting vacuum clamp (sound-absorbing sheet) in

[0022] Figure 4 For Figure 2 Structure diagram of floating spring positioning pin.

[0023] In the figure: 1, press vacuum clamp; 2, press bottom plate; 3, sound-absorbing sheet; 4, friction sheet; 5, steel back; 6, first positioning pin; 7, second positioning pin; 8, third positioning pin; 9, floating spring positioning pin; 91, positioning pin sleeve; 92, press positioning pin; 93, spring; 10, air pipe joint; 11, vacuum sealing element; 12, rectangular positioning block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail with the help of the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0025] Please refer to Figures 1-4 The utility model provides a kind of sound-absorbing sheet press location device technical scheme: a kind of sound-absorbing sheet press location device, including press vacuum clamp 1 and press bottom plate 2, press vacuum clamp 1 is located in the top of press bottom plate 2, the bottom of press vacuum clamp 1 is adsorbed with sound-absorbing sheet 3, and friction sheet 4 and steel back 5 are stacked on the top of press bottom plate 2.

[0026] In the embodiment, by press vacuum clamp 1 and press bottom plate 2, for sound-absorbing sheet 3 is pressed in steel back 5, brake pad assembly is assembled.

[0027] Further;Press bottom plate 2 is located at the two ends of friction sheet 4 and steel back 5 and is provided with a plurality of groups of first positioning pin 6.

[0028] In the embodiment, by being provided with a plurality of groups of first positioning pin 6, a plurality of groups of first positioning pin 6 are sequentially installed at the two ends of press bottom plate 2, and the two ends of friction sheet 4 and steel back 5 are limited by first positioning pin 6, while facilitating the quick positioning of friction sheet 4 and steel back 5 on press bottom plate 2.

[0029] Usually;Press bottom plate 2 is provided with two groups of second positioning pin 7 symmetrically, and the second positioning pin 7 is matched with the through hole on the steel back 5, and the two groups of second positioning pin 7 are inserted into the through hole of the steel back 5.

[0030] In the embodiment, by being provided with two groups of second positioning pin 7, wherein the two groups of second positioning pin 7 are matched with the two through holes on the steel back 5, to facilitate the quick positioning of the steel back 5 on the press bottom plate 2 by the second positioning pin 7.

[0031] Specifically;Press bottom plate 2 is symmetrically provided with two groups of third positioning pin 8 on the two sides of second positioning pin 7.

[0032] In this embodiment, a third positioning pin 8 is provided, which is an extended positioning pin. This allows for quick positioning of the steel back 5 into the second positioning pin 7, while ensuring the stability of the steel back 5 on the pressing base plate 2 and guaranteeing the pressing effect. A pin groove is provided on the pressing vacuum fixture 1 at the location of the third positioning pin 8, which allows the third positioning pin 8 to slide into the pin groove when the pressing vacuum fixture 1 is pressed with the pressing base plate 2, further improving the positioning effect.

[0033] In addition, a gas pipe connector 10 is installed on the side wall of the press-fit vacuum fixture 1, and two sets of vacuum sealing elements 11 are provided at the bottom of the press-fit vacuum fixture 1. The two sets of vacuum sealing elements 11 are connected to the gas pipe connector 10.

[0034] In this embodiment, an air pipe connector 10 is provided on the press-fit vacuum fixture 1, wherein the air pipe connector 11 is connected to an external vacuum pumping device. A set of vacuum sealing elements 11 is provided, wherein a channel is opened in the press-fit vacuum fixture 1, and the two sets of vacuum sealing elements 11 are connected to the air pipe connector 10 through the channel. Under the drive of the external vacuum pumping device, the vacuum sealing elements 11 can adsorb the sound-absorbing sheet 3, which facilitates the subsequent pressing and assembly of the sound-absorbing sheet 5.

[0035] In addition, the press-fit vacuum fixture 1 is provided with several sets of floating spring positioning pins 9 around the sound-absorbing plate 3. The floating spring positioning pins 9 include: positioning pin sleeves 91, which are installed on the press-fit vacuum fixture 1, and press-fit positioning pins 92 are slidably connected to the positioning pin sleeves 91. A spring 93 is provided inside the positioning pin sleeves 91.

[0036] In this embodiment, several sets of floating spring positioning pins 9 are provided around the bottom of the press-fit vacuum fixture 1 to facilitate the rapid positioning of the sound-absorbing sheet 3 on the press-fit vacuum fixture 1 and to limit the position of the sound-absorbing sheet 3 around its perimeter. The floating spring positioning pins 9 include: positioning pin sleeves 91. When the press-fit vacuum fixture 1 presses down on the sound-absorbing sheet 3, the press-fit positioning pins 92 retract into the positioning pin sleeves 91 under the left and right pressure of the springs 93 after being squeezed, ensuring that the sound-absorbing sheet 3 is attached to the steel back 5, which facilitates subsequent pressing processing. At the same time, after pressing is completed, the pins are reset to facilitate subsequent repeated positioning operations.

[0037] It should be noted that two sets of rectangular positioning blocks 12 are symmetrically arranged on the press-fit vacuum fixture 1.

[0038] In this embodiment, a rectangular positioning block 12 is provided, which is adapted to the alignment slots of the sound-absorbing sheet 3 and the steel back 5, so as to facilitate the rapid alignment of the sound-absorbing sheet 3 and the steel back 5 during pressing.

[0039] 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 and improvements 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 sound-absorbing sheet pressing and positioning device, characterized in that: It includes a press-fit vacuum fixture (1) and a press-fit base plate (2). The press-fit vacuum fixture (1) is located directly above the press-fit base plate (2). A sound-absorbing sheet (3) is adsorbed on the bottom of the press-fit vacuum fixture (1). A friction sheet (4) and a steel back (5) are stacked on the top of the press-fit base plate (2).

2. The sound-absorbing sheet pressing and positioning device according to claim 1, characterized in that: The press-fit base plate (2) is provided with several sets of first positioning pins (6) at both ends of the friction plate (4) and the steel back (5).

3. The sound-absorbing sheet pressing and positioning device according to claim 1, characterized in that: Two sets of second positioning pins (7) are symmetrically arranged on the press-fit base plate (2). The second positioning pins (7) are adapted to the through holes on the steel back (5). The two sets of second positioning pins (7) are inserted into the through holes of the steel back (5).

4. The sound-absorbing sheet pressing and positioning device according to claim 3, characterized in that: The press-fit base plate (2) is symmetrically equipped with two sets of third positioning pins (8) on both sides of the second positioning pin (7).

5. The sound-absorbing sheet pressing and positioning device according to claim 1, characterized in that: The press-fit vacuum fixture (1) is equipped with a gas pipe connector (10) on its side wall, and two sets of vacuum sealing elements (11) are provided at the bottom of the press-fit vacuum fixture (1). The two sets of vacuum sealing elements (11) are connected to the gas pipe connector (10).

6. The sound-absorbing sheet pressing and positioning device according to claim 1, characterized in that: The press-fit vacuum fixture (1) is provided with several sets of floating spring positioning pins (9) around the sound-absorbing plate (3). The floating spring positioning pins (9) include: positioning pin sleeves (91), which are installed on the press-fit vacuum fixture (1). Press-fit positioning pins (92) are slidably connected to the positioning pin sleeves (91), and springs (93) are provided inside the positioning pin sleeves (91).

7. The sound-absorbing sheet pressing and positioning device according to claim 1, characterized in that: Two sets of rectangular positioning blocks (12) are symmetrically arranged on the press-fit vacuum fixture (1).

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