Front suspension bracket lining press-fitting device

Abstract

The utility model discloses a front suspension bracket lining press-fitting device. A tailstock, a moving device, a limiting block and a press-fitting assembly are sequentially arranged at the top of a bottom plate from left to right. The tailstock is detachably fixed to the left side of the top of the bottom plate. A positioning device, a pressing device and a pressing rod guiding device of the front suspension bracket are detachably fixed to the top of the moving device. The limiting block is detachably fixed on the bottom plate; the press-fitting assembly comprises a pressing rod, a connector, a power source and a power seat, the power seat is detachably fixed to the right side of the top of the bottom plate, a power source mounting position is arranged on the left side of the power seat, one end of the power source is detachably fixed to the power source mounting position, the connector is fixed to the other end of the power source, and the connector is detachably connected with one end of the pressing rod. The other end of the pressing rod penetrates through the pressing rod guiding device. According to the utility model, the bushing can be conveniently and stably pressed into the corresponding assembly hole of the front suspension bracket, so that the assembly cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing and assembly, in particular to a front suspension bracket bushing press-fitting device. Background Art

[0002] New energy electric vehicles are widely used in people's lives. New energy electric vehicles have many parts. During the production process, some parts need to be assembled into components, such as the combination of the front suspension bracket and the bushing. The structure of the front suspension bracket and the bushing is as follows: Figure 1 、 Figure 2 、 Figure 3 As shown, a horizontal hole is provided in the middle of the front suspension bracket, and the end of the horizontal hole close to the circular end face is marked as an assembly hole that cooperates with the bushing. A first protrusion is provided on one side of the front suspension bracket, and a first vertical hole is provided on the first protrusion. A second protrusion is provided on the other side of the front suspension bracket, and a second vertical hole is provided on the second protrusion. The bottom of the first vertical hole is higher than the bottom of the second vertical hole. During assembly, the bushing enters from one end of the assembly hole of the front suspension bracket and gradually approaches the circular end face of the front suspension bracket until the end face of the bushing is flush with the circular end face of the front suspension bracket, and the outer wall of the bushing is in tight contact with the inner wall of the assembly hole, thereby completing the assembly of the front suspension bracket and the bushing.

[0003] At present, the common assembly method is press-fitting, which uses special pressure equipment and requires professional personnel to operate in specific sites and production lines. In addition, the price of a special pressure equipment ranges from more than 100,000 to several hundred thousand. The common press-fitting assembly method requires the investment of special equipment, professionals, and specific sites, and the assembly cost is very high. Therefore, it is necessary to design a front suspension bracket bushing press-fitting device to facilitate the stable pressing of the bushing into the corresponding assembly hole of the front suspension bracket, which is suitable for assembly on ordinary production lines and effectively reduces the assembly cost. Utility Model Content

[0004] The purpose of the utility model is to provide a front suspension bracket bushing press-fitting device, which is convenient for stably pressing the bushing into the corresponding assembly hole of the front suspension bracket, is suitable for assembly on ordinary production lines, and effectively reduces assembly costs.

[0005] The technical solution adopted by this utility model is:

[0006] A front suspension bracket bushing pressing device comprises a base plate, and a tailstock, a moving device, a limit block and a pressing assembly are provided on the top of the base plate in sequence from left to right; the tailstock is detachably fixed to the left position of the top of the base plate; the top of the moving device is detachably fixed with a positioning device, a clamping device and a pressure rod guide device of the front suspension bracket, and the moving device can move left and right between the tailstock and the limit block; the limit block is detachably fixed to the base plate; the pressing assembly comprises a pressure rod, a connecting head, a power source and a power seat, the power seat is detachably fixed to the right position of the top of the base plate, a power source installation position is provided on the left side of the power seat, one end of the power source is detachably fixed at the power source installation position, and a connecting head is fixed to the other end of the power source, the connecting head is detachably connected to one end of the pressure rod, and the pressure rod passes through the pressure rod guide device.

[0007] Furthermore, the tailstock includes a large support and a positioning pad. The large support is detachably fixed to the top of the base plate, and the positioning pad is detachably fixed to the upper part of the right side of the large support.

[0008] Furthermore, the moving device includes a base that can move left and right and a slide rail fixed on the bottom plate. The bottom of the base is detachably fixed with a slide seat that cooperates with the slide rail, and the positioning device, the clamping device and the pressure rod guide device are detachably fixed to the top of the base.

[0009] Furthermore, the positioning device includes a first positioning component and a second positioning component; the first positioning component includes a first fixing block that is detachably fixed to the top of the base, a first pad corresponding to the first protrusion of the front suspension bracket is fixed on the top of the first fixing block, and a first positioning pin that cooperates with the first vertical hole of the first protrusion is fixed on the top of the first pad; the second positioning component includes a second fixing block that is detachably fixed to the top of the base, and a second positioning pin that cooperates with the second vertical hole of the second protrusion is fixed on the top of the second fixing block; a second pad corresponding to the second protrusion of the front suspension bracket is provided on the outer side of the fixing block, and the second pad is detachably fixed to the base.

[0010] Furthermore, the clamping device includes a quick clamp and a quick clamp support seat, the quick clamp is detachably fixed to the quick clamp support seat, and the quick clamp support seat is detachably fixed to the base.

[0011] Furthermore, the pressure rod guide device includes a guide seat and a guide sleeve. The guide seat can be removably fixed to the right side of the top of the base. A guide sleeve mounting hole is provided on the upper part of the guide seat. The guide sleeve is fixed in the guide sleeve mounting hole. The pressure rod passes through the guide sleeve and is slidably connected to the guide sleeve.

[0012] Furthermore, the pressure rod includes a bushing mounting portion, a sliding limit step, a guide portion and a connecting portion arranged in sequence from left to right; the bushing mounting portion is provided with a bushing pre-tightening device, the bushing pre-tightening device includes a plurality of annular grooves arranged on the bushing mounting portion and an O-type pre-tightening ring installed in the annular groove, the O-type pre-tightening ring corresponds to the annular groove one-to-one, and 2 are preferably used here; the outer diameter of the sliding limit step is larger than the inner diameter of the guide sleeve; the guide portion is inserted into the guide sleeve and slides along the guide sleeve; the connecting portion is detachably connected to the connecting head.

[0013] Furthermore, the front suspension bracket bushing press-fitting device also includes a control unit, which includes a control valve, a limit sensor, a bracket, a limit rod assembly, and a control electrical box. The control valve is used to control the power source; the limit sensor is used to control the range of movement of the pressure rod. The limit sensor is adjustably mounted on the base plate via the bracket, and the limit rod assembly is detachably fixed to the pressure rod. The control electrical box includes a controller, the limit sensor is electrically connected to the controller's input, and the control valve is electrically connected to the controller's output.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model facilitates horizontal pressing of the bushing into the assembly hole of the front suspension bracket, is suitable for assembly on ordinary production lines, and effectively reduces assembly costs.

[0016] 2. The tailstock in the utility model is used to be in tight contact with the circular end surface of the front suspension bracket, and the positioning device on the moving device is used to position the front suspension bracket. The setting of the moving device eliminates the processing deviation of the circular end surface of the front suspension bracket, the first vertical hole of the front suspension bracket, and the second vertical hole of the front suspension bracket that play a positioning role, thereby improving the quality of pressing the front suspension bracket and the bushing, and effectively increasing the service life of the device.

[0017] 3. Simple operation, easy to use, strong adaptability, and can be widely used in the assembly and processing of similar or similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the front suspension bracket;

[0019] Figure 2 It is a schematic diagram of the main structure of the front suspension bracket;

[0020] Figure 3 It is a structural diagram of the bushing;

[0021] Figure 4 A schematic diagram of the main structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the top structure of the utility model;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 7 It is a schematic diagram of the local structure of the utility model;

[0025] Figure 8 is a schematic diagram of the three-dimensional structure of the first positioning component;

[0026] Figure 9 is a schematic diagram of the top view of the first positioning assembly;

[0027] Figure 10 It is a cross-sectional view of the bushing, the pressure rod and the connector;

[0028] Figure 11 Schematic diagram of the three-dimensional structure of the pressure rod and the connecting head.

[0029] In the figure: 1-base plate, 2-tailstock, 3-moving device, 4-second positioning assembly, 5-base, 6-slide, 7-slide rail, 8-limit block, 9-pad, 10-connector, 11-power source, 12-power seat, 13-control valve, 14-pressure rod, 15-guide sleeve, 16-guide seat, 17-sliding limit step, 18-quick clamp, 19-quick clamp support seat, 20-bushing, 21-front suspension bracket, 22-positioning pad, 23-large support, 24-pressing assembly, 25-second positioning pin, 26-first positioning pin, 27-first pad, 28- First fixed block, 29-first positioning assembly, 30-second pad, 31-second fixed block, 32-arc-shaped portion, 33-annular groove, 34-O-type preload ring, 36-mounting block, 37-assembly groove, 38-card slot, 39-bushing mounting portion, 40-bushing preload device, 41-guide portion, 42-connecting portion, 43-limit sensor, 44-bracket, 45-limit rod device, 46-control electrical box, 200-second raised portion, 201-second vertical hole, 202-horizontal hole, 203-first raised portion, 204-first vertical hole 204, 205-circular end face. DETAILED DESCRIPTION

[0030] like Figure 1-11As shown, a front suspension bracket bushing pressing device includes a base plate 1, and the top of the base plate 1 is provided with a tailstock 2, a moving device 3, a limit block 8 and a pressing assembly 24 from left to right; the tailstock 2 is detachably fixed to the left position of the top of the base plate 1; the top of the moving device 3 is detachably fixed with a positioning device, a clamping device and a pressure rod guide device of the front suspension bracket 21, and the moving device can move left and right between the tailstock 2 and the limit block 8; the limit block 8 is detachably fixed to the base plate 1; the pressing assembly 24 includes a pressure rod 14, a connecting head 10, a power source 11, and a power seat 12. The power seat 12 is detachably fixed to the right position of the base plate 1, and a power source mounting position is provided on the left side of the power seat 12. One end of the power source 11 is detachably fixed at the power source mounting position, and a connecting head 10 is fixed to the other end of the power source 11. The connecting head 10 is detachably fixed to one end of the pressure rod 14, and the pressure rod 14 passes through the pressure rod guide device.

[0031] The power source 11 preferably uses a hydraulic power device, which includes a hydraulic cylinder. The hydraulic cylinder includes a cylinder body. A piston rod that can move left and right is provided in the cylinder body. The cylinder body can be detachably fixed to the power source installation position of the power seat 12, and the connector 10 is fixed to the free end of the piston rod; the hydraulic cylinder is connected to a hydraulic control system that controls its extension and retraction. A conventional hydraulic control system can be used. A conventional hydraulic control system generally includes an oil tank, a hydraulic pump, a control valve 13, etc. The control valve 13 is arranged on the hydraulic circuit of the hydraulic control system for controlling the extension and retraction of the hydraulic cylinder. When the control valve 13 uses a manual valve, it is installed on the base plate 1 for easy operation. This is a prior art and will not be repeated here.

[0032] The power source 11 may also be an electric power device including components such as an electric cylinder, or a pneumatic power device including components such as an air cylinder, or other conventional telescopic devices.

[0033] The tailstock 2 includes a large support 23 and a positioning pad 22. The large support 23 is detachably fixed to the top of the base plate 1. The large support 23 is arranged on the left side of the top of the base plate 1, and the positioning pad 22 is detachably fixed to the upper part of the right side of the large support 23.

[0034] The longitudinal cross-section of the large support 23 is in an inverted T-shape, and the positioning pad 22 is in a cube shape; both sides of the large support 23 are detachably fixedly connected to the base plate 1 by screws.

[0035] The moving device 3 includes a base 5 that can move left and right and a slide rail 7 fixed on the base plate 1. The number of slide rails 7 is preferably two. The bottom of the base 5 is detachably fixed with a slide seat 6 that cooperates with the slide rail 7. The positioning device, the clamping device and the pressure rod guide device are detachably fixed to the top of the base 5.

[0036] The positioning device includes a first positioning component 29 and a second positioning component 4; the first positioning component 29 includes a first fixing block 28 that is detachably fixed to the top of the base 5, and a first pad 27 corresponding to the first protrusion 203 of the front suspension bracket 21 is fixed on the top of the first fixing block 28, and a first positioning pin 26 that cooperates with the first vertical hole 204 of the first protrusion 203 is fixed on the top of the first pad 27; the second positioning component 4 includes a second fixing block 31 that is detachably fixed to the top of the base 5, and a second positioning pin 25 that cooperates with the second vertical hole 201 of the second protrusion 200 is fixed on the top of the second fixing block 31; a second pad 30 corresponding to the second protrusion 200 of the front suspension bracket 21 is provided on the outer side of the fixing block, and the second pad 30 is detachably fixed to the base 5.

[0037] The first positioning pin 26 is a diamond-shaped pin, and the cross-section of the diamond-shaped pin is roughly diamond-shaped, with arc-shaped portions 32 provided at two opposite corners, and the outer wall of the arc-shaped portion 32 fits with the inner wall of the first vertical hole 204; the second positioning pin 25 is a cylindrical pin, and the outer wall of the second positioning pin 25 fits with the inner wall of the second vertical hole 201.

[0038] The clamping device includes a quick clamp 18 and a quick clamp support seat 19. The quick clamp 18 can be detachably fixed on the quick clamp support seat 19, and the quick clamp support seat 19 can be detachably fixed on the base 5. The quick clamp 18 can be purchased in major shopping malls, and there are also relevant patents disclosing its specific structure, such as the patent publication number CN205572206U, and the patent name is the technical solution disclosed in the patent disclosure of the clamp. This is the existing technology and will not be repeated here.

[0039] The pressure rod guide device includes a guide seat 16 and a guide sleeve 15. The guide seat 16 can be removably fixed to the right position of the top of the base 5, located on the right side of the positioning device. A guide sleeve mounting hole is provided on the upper part of the guide seat 16. The guide sleeve 15 is fixed in the guide sleeve mounting hole. The pressure rod 14 passes through the guide sleeve 15 and is slidably connected to the guide sleeve 15. Specifically, the guide portion 41 of the pressure rod 14 passes through the guide sleeve 15 and is slidably connected to the guide sleeve 15.

[0040] The limit block 8 is L-shaped and is arranged on the right side of the moving device 3 to limit the rightward movement distance of the moving device 3. The bottom of the limit block 8 is detachably fixed to the top of the base plate 1.

[0041] The pressure rod 14 is provided with a bushing mounting portion 39, a sliding limit step 17, a guide portion 41 and a connecting portion 42 from left to right; the bushing mounting portion 39 and the sliding limit step 17 are arranged on the left side of the pressure rod guide device, and the bushing mounting portion 39 is provided with a bushing pre-tightening device, and the bushing pre-tightening device 40 includes a plurality of annular grooves 33 arranged on the bushing mounting portion 39 and an O-type pre-tightening ring 34 installed in the annular groove 33, and the O-type pre-tightening ring 34 corresponds to the annular groove 33 one by one. Here, the number of annular grooves 33 is preferably 2, and the O-type pre-tightening ring 34 is preferably a rubber ring; the outer diameter of the sliding limit step 17 is larger than the inner diameter of the guide sleeve 15 of the pressure rod guide device, and plays a limiting role; the guide portion 41 is installed on the guide sleeve 15 and slides along the guide sleeve 15, that is, the guide portion 41 passes through the guide sleeve 15 of the pressure rod guide device and is slidably connected to it; the connecting portion 42 is detachably connected to the connecting head 10.

[0042] The connecting portion 42 and the connecting head 10 can be detachably fixedly connected, but the processing accuracy of the pressure rod 14 and the guide sleeve 15 is relatively high to ensure that the guide portion 41 of the pressure rod 14 can slide smoothly along the guide sleeve 15. The connecting portion 42 and the connecting head 10 can be detachably linked. Specifically, the connecting portion 42 is provided with a card slot 38 and a mounting block 36 from left to right. The connecting head 10 is provided with an assembly slot 37, and the mounting block 36 is arranged in the assembly slot 37. The card slot 38 is provided with a C-shaped card pad 9, which plays a limiting role and prevents the mounting block 36 from falling out of the assembly slot 37. The card pad 9 is detachably fixed to the connecting head 10 by screws. The outer diameter of the mounting block 36 is smaller than the inner diameter of the assembly slot 37, that is, there is a certain distance between the two radially. There is a certain distance between the left side of the mounting block 36 and the card pad 9, which adapts to the processing deviation of the pressure rod 14 and the guide sleeve 15 as a whole, making it convenient for the guide portion 41 of the pressure rod 14 to slide along the guide sleeve 15.

[0043] The front suspension bracket bushing press-fitting device also includes a control unit. The setting of the control unit improves the degree of automation of the device. The control unit includes a control valve 13, a limit sensor 43, a bracket 44, a limit rod device 45, and a control electrical box 46. The control valve 13 is used to control the power source 11; the limit sensor 43 is used to control the moving range of the pressure rod 14, and the limit sensor 43 is adjustably arranged on the base plate 1 through the bracket 44, that is, the bracket 44 is detachably fixed on the base plate 1, the limit sensor 43 is detachably fixed on the bracket 44, and the pressure rod 14 is detachably fixed with a limit rod device 45 corresponding to the limit sensor 43; the control electrical box 46 includes a controller, and the controller preferably uses a PLC controller. When the control valve 13 uses a solenoid valve or other valve that does not require manual operation, the control valve 13 is electrically connected to the output end of the controller, and the limit sensor 43 is electrically connected to the input end of the controller. When the limit sensor 43 detects the limit rod device 45 on the pressure rod 14, the limit sensor 43 feeds back a signal to the controller, and the controller controls the power source 11 to stop extending through the control valve 13, indicating that the press is in place, thereby improving the overall degree of automation of the device.

[0044] The method of using the utility model is:

[0045] Step 1: Place the front suspension bracket 21 on the mobile device 3, the bottom of the first protrusion 203 of the front suspension bracket 21 fits with the top of the first pad 27, the first positioning pin 26 is arranged in the first positioning hole, and the outer wall of the arc-shaped portion 32 of the first positioning pin 26 fits with the inner wall of the first vertical hole 204; the bottom of the second protrusion 200 of the front suspension bracket 21 fits with the top of the second pad 30, the second positioning pin 25 is arranged in the second vertical hole 201, and the outer wall of the second positioning pin 25 fits with the inner wall of the second vertical hole 201.

[0046] Step 2: Start the quick clamp 18 to clamp the front suspension bracket 21 of the workpiece.

[0047] Step 3: Install the bushing 20 on the bushing mounting portion 39 at one end of the pressure rod 14, and the O-type preload ring 34 is in tight contact with the inner wall of the bushing 20. Under the action of the bushing preload device 40, the bushing 20 is automatically centered and preloaded.

[0048] Step 4: Start the control valve 13 and the power source 11 starts working. The power source 11 drives the pressure rod 14 and the bushing 20 to the left through the connecting head 10 and enters the horizontal hole 202 of the front suspension bracket 21. When the outer wall of the bushing 20 contacts the inner wall of the assembly hole, the front suspension bracket 21 and the moving device 3 move to the left with it. When the circular end face 205 of the front suspension bracket 21 contacts the positioning pad 22, the power source 11 further extends, so that the bushing 20 is pressed into the assembly hole of the front suspension bracket 21 until the end face of the bushing 20 is flush with the circular end face 205 of the front suspension bracket 21, and the press-fitting is completed.

[0049] Step 5: After the press-fitting is completed, the control valve 13 is started in reverse, and the power source 11 works. The power source 11 drives the pressure rod 14 and the assembled front suspension bracket 21 to return to the right through the connecting head 10. When the base 5 contacts the limit block 8, the assembled front suspension bracket 21 stops moving to the right, and the power source 11 drives the pressure rod 14 to return to the right further through the connecting head 10. The bushing mounting portion 39 of the pressure rod 14 disengages from the bushing 20 and returns to its initial position, and the power source 11 stops working.

[0050] Step 6: Loosen the quick clamp 18, remove the press-fitted front suspension bracket assembly, and complete the assembly process of the front suspension bracket assembly.

[0051] Repeat the above operation to complete the press fitting continuously.

[0052] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0053] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A front suspension bracket bushing press-fitting device, comprising a base plate, characterized in that: The top of the base plate is provided with a tailstock, a moving device, a limit block and a pressing assembly from left to right; the tailstock is detachably fixed to the left position of the top of the base plate; the top of the moving device is detachably fixed with a positioning device, a clamping device and a pressure rod guide device of the front suspension bracket, and the moving device can move left and right between the tailstock and the limit block; the limit block is detachably fixed to the base plate; the pressing assembly includes a pressure rod, a connecting head, a power source, and a power seat. The power seat is detachably fixed to the right position of the top of the base plate, and a power source installation position is provided on the left side of the power seat. One end of the power source is detachably fixed at the power source installation position, and a connecting head is fixed to the other end of the power source. The connecting head is detachably connected to one end of the pressure rod, and the pressure rod passes through the pressure rod guide device.

2. The front suspension bracket bushing press-fitting device according to claim 1, characterized in that: The tailstock comprises a large support and a positioning pad. The large support is detachably fixed on the top of the base plate, and the positioning pad is detachably fixed on the upper part of the right side of the large support.

3. The front suspension bracket bushing press-fitting device according to claim 1, wherein: The moving device includes a base that can move left and right and a slide rail fixed on the bottom plate. The bottom of the base is detachably fixed with a slide seat that cooperates with the slide rail. The positioning device, the clamping device and the pressure rod guide device are detachably fixed to the top of the base.

4. The front suspension bracket bushing press-fitting device according to claim 3, characterized in that: The positioning device includes a first positioning assembly and a second positioning assembly; the first positioning assembly includes a first fixing block that is detachably fixed to the top of the base, a first pad corresponding to the first protrusion of the front suspension bracket is fixed on the top of the first fixing block, and a first positioning pin that cooperates with the first vertical hole of the first protrusion is fixed on the top of the first pad; the second positioning assembly includes a second fixing block that is detachably fixed to the top of the base, and a second positioning pin that cooperates with the second vertical hole of the second protrusion is fixed on the top of the second fixing block; a second pad corresponding to the second protrusion of the front suspension bracket is provided on the outer side of the fixing block, and the second pad is detachably fixed to the base.

5. The front suspension bracket bushing press-fitting device according to claim 3, wherein: The clamping device comprises a quick clamp and a quick clamp supporting seat. The quick clamp is detachably fixed on the quick clamp supporting seat, and the quick clamp supporting seat is detachably fixed on the base.

6. The front suspension bracket bushing press-fitting device according to claim 3, wherein: The pressure rod guide device includes a guide seat and a guide sleeve. The guide seat is detachably fixed to the right side of the top of the base. A guide sleeve mounting hole is provided on the upper part of the guide seat. The guide sleeve is fixed in the guide sleeve mounting hole. The pressure rod passes through the guide sleeve and is slidably connected to the guide sleeve.

7. The front suspension bracket bushing press-fitting device according to claim 6, characterized in that: The pressure rod includes a bushing mounting portion, a sliding limit step, a guide portion and a connecting portion arranged in sequence from left to right; the bushing mounting portion is provided with a bushing pre-tightening device, and the bushing pre-tightening device includes a plurality of annular grooves arranged on the bushing mounting portion and an O-type pre-tightening ring installed in the annular groove; the outer diameter of the sliding limit step is larger than the inner diameter of the guide sleeve; the guide portion is inserted into the guide sleeve and slides along the guide sleeve; the connecting portion is detachably connected to the connecting head.

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