Vacuum booster push rod head tightening equipment

Abstract

The utility model discloses a vacuum booster push rod head tightening device, which relates to the field of vacuum boosters, and comprises a rack, a device platform is arranged on the rack, and a jacking cylinder is arranged below the device platform; the upper supporting plate is supported on the equipment platform through a plurality of guide columns; the lower supporting plate is driven by a jacking air cylinder to move up and down along the guide columns; the positioning assembly is used for fixing and positioning the vacuum booster; the fixing plate is provided with a servo driving device and used for driving a torque sensor, the other end of the torque sensor is connected with and drives a driving gear, the driving gear is in meshing transmission with a driven gear, and the driven gear is connected with and drives a push rod head adjusting sleeve through a clutch; the measuring rod sequentially penetrates through the fixing plate, the driven gear and the upper supporting plate, the push rod head adjusting sleeve sleeves the bottom end of the measuring rod, the push rod head adjusting sleeve is sleeved with the push rod fixing sleeve, and the push rod fixing sleeve is sleeved with the front shell positioning ring. The tightening efficiency and the measuring precision of the push rod head are improved, and automatic tightening and automatic detection are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vacuum booster, concretely relates to a vacuum booster push rod head tightening equipment. BACKGROUND

[0002] The vacuum booster push rod head tightening equipment is a detection equipment for checking whether the assembly process is effective and reliable in the production process of the vacuum booster product, and is the guarantee of product quality.

[0003] The existing vacuum booster push rod head tightening equipment is provided with a manual tightening device and a manual grating ruler detection device, the push rod head is manually tightened by using a vice, and the detection device is manually pushed to measure.

[0004] The zero block is tightly attached to the lower end face of the front shell, the lower end face of the measuring rod is flush with the lower end face of the front shell at this time, then the grating display is cleared, the zero block is removed (once per shift in the previous step), the booster is placed into the positioning plate, the booster front shell end face is tightly attached to the front shell limiting, then the push rod lifting cylinder is started to lift the push rod, and the operation is facilitated. Subsequently, the thread glue is manually applied at the connection between the push rod head and the push rod, and one vice is held in each hand, the left-hand vice clamps the push rod, the right-hand vice clamps the push rod head and is rotated to adjust to the corresponding size, the two vices are loosened, the push rod lifting cylinder is returned, the measuring rod is manually pressed down, the lower end face of the measuring rod is tightly attached to the upper end face of the push rod head, the difference between the adjusted size and the theoretical size is observed, and the number of rotation adjustment of the push rod head is estimated (calculated according to the measured difference and the pitch of the bolt). Then, the push rod lifting cylinder is started and the vices are held in each hand to adjust, the operation is repeated until the size of the push rod head is adjusted to the position, the left-hand vice clamps the push rod, the right-hand vice clamps the locking nut and is rotated to lock, the booster lifting cylinder is returned, the booster is removed, and the size adjustment work of the push rod head is completed. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of the prior art, and provides a vacuum booster push rod head tightening equipment, which improves the efficiency and measurement accuracy of push rod head tightening and realizes automatic tightening and automatic detection.

[0006] The utility model aims at overcoming the defects of the prior art, and provides a vacuum booster push rod head tightening equipment, which improves the efficiency and measurement accuracy of push rod head tightening and realizes automatic tightening and automatic detection.

[0007] The utility model discloses a vacuum booster push rod head tightening equipment which comprises:

[0008] The upper support plate is supported on the equipment platform through a plurality of guide columns.

[0009] The lower support plate is connected and driven by the lifting cylinder and moves up and down along the guide column.

[0010] A positioning assembly is installed on the lower support plate for fixing and positioning the vacuum booster;

[0011] A fixed plate is supported on the upper support plate by a plurality of support columns, the fixed plate is provided with a servo drive device for connecting one end of a torque sensor, the other end of the torque sensor is connected to a driving gear, the driving gear is in meshing transmission with a driven gear, the driven gear is connected to a push rod head adjusting sleeve through a clutch, and a laser displacement sensor is further arranged on the fixed plate; and

[0012] A measuring rod is sequentially penetrated through the fixed plate, the driven gear and the upper support plate, the push rod head adjusting sleeve is sleeved at the bottom end of the measuring rod, the push rod fixing sleeve is sleeved outside the push rod head adjusting sleeve, and the front shell positioning ring is sleeved outside the push rod fixing sleeve for positioning the front shell of the vacuum booster, and the laser displacement sensor is located above the measuring rod for real-time monitoring of the displacement of the measuring rod.

[0013] The lower ends of the push rod fixing sleeve and the push rod head adjusting sleeve are both holed for guiding the push rod of the vacuum booster, and the push rod is connected with a push rod head.

[0014] As a further technical solution, the servo drive device comprises a servo motor and a speed reducer driven by the servo motor, and the output end of the speed reducer drives the torque sensor through a shaft coupling.

[0015] As a further technical solution, the first support plate and the second support plate are sequentially arranged on the support columns, and the first support plate and the second support plate are located between the fixed plate and the upper support plate; the upper and lower ends of the driving gear and the driven gear are both sleeved with bearings, and the bearings are pressed on the corresponding first support plate or second support plate through a pressing sleeve.

[0016] As a further technical solution, the first sliding sleeve and the second sliding sleeve are sequentially sleeved on the measuring rod, one end of the first sliding sleeve is slidably sleeved on one support column, and the two ends of the second sliding sleeve are both slidably sleeved on one support column, and a pre-pressing spring is sleeved on the measuring rod between the first sliding sleeve and the fixed plate.

[0017] As a further technical solution, a plurality of load-bearing columns are arranged between the first support plate and the second support plate for support, a plurality of load-bearing columns are also arranged between the second support plate and the upper support plate for support, and the torque sensor is supported on the first support plate through a support frame.

[0018] As a further technical solution, the positioning assembly comprises a positioning plate, the positioning plate is fixed on the lower support plate by a plurality of support feet, a plurality of hole positions are arranged on the positioning plate, and the vacuum booster is fixed with the corresponding hole position through a fixing bolt.

[0019] As a further technical scheme, the clutch adopts a jaw clutch, the jaw clutch comprises a plurality of teeth arranged on the lower end of the driven gear and the upper end of the push rod head adjusting sleeve, and the teeth have a flat surface and an inclined surface.

[0020] As a further technical scheme, the touch screen is installed on a guide column, and the touch screen is electrically connected with the torque sensor and the laser displacement sensor, and is used for displaying torque and displacement values in real time.

[0021] As a further technical scheme, the calibration sleeve is used for sleeving the front shell positioning ring, the calibration sleeve is fixed with the calibration rod through the locking nut in the center, the calibration rod is used for penetrating into the push rod head adjusting sleeve, and zero point calibration is realized by cooperating with the measuring rod and the laser displacement sensor.

[0022] The utility model discloses the beneficial effects are:

[0023] 1, adopt laser displacement sensor, realize non -contact measurement, set up pre -compression spring, anti -interference is strong, and the measurement precision is high;

[0024] 2, no longer rely on the tiger forceps to carry out manual tightening, and save manpower cost;

[0025] 3, the size of adjustment is ± 0.05mm, and the size is measured in real time in the adjustment process, and the controllability is high;

[0026] 4, production efficiency is 3 times of manual tightening. DRAWINGS

[0027] Figure 1 It is the front view structural schematic drawing of the utility model.

[0028] Figure 2 It is the three-dimensional structure schematic drawing of the utility model.

[0029] Figure 3 It is the structure schematic drawing of the hidden rack of the utility model.

[0030] Figure 4 It is the structure schematic drawing of the upper support plate of the utility model and the part fixed on it.

[0031] Figure 5 It is Figure 4 A-A sectional view.

[0032] Figure 6 It is the structure schematic drawing of driven gear in the utility model.

[0033] Figure 7 It is the structure schematic drawing of driven gear and push rod head adjusting sleeve through the clutch cooperation in the utility model.

[0034] Figure 8The structure schematic view of the torque sensor, the first supporting plate and the second supporting plate in the utility model.

[0035] Figure 9 The structure schematic view of the calibration sleeve in the utility model.

[0036] Figure 10 The structure schematic view of the vacuum booster in the utility model.

[0037] Mark explanation: frame 1, equipment platform 2, upper support plate 3, lower support plate 4, guide column 5, jacking cylinder 6, positioning plate 7, support foot 8, servo motor 9, speed reducer 10, driving gear 11, driven gear 12, torque sensor 13, fixed plate 14, first supporting plate 15, second supporting plate 16, measuring rod 17, laser displacement sensor 18, pre-press spring 19, shaft coupling 20, bearing 21, compression sleeve 22, support column 23, first sliding sleeve 24, fixed rod 25, second sliding sleeve 26, front shell positioning ring 27, push rod fixing sleeve 28, push rod head adjusting sleeve 29, support frame 30, flat surface 31, inclined surface 32, bearing column 33, touch screen 34, vacuum booster 100, push rod 101, push rod head 102, fixed bolt 103, front shell 104, calibration sleeve 200, calibration rod 201 and locking nut 202. DETAILED DESCRIPTION

[0038] The utility model will be introduced in detail below in combination with the drawings:

[0039] Embodiment: as shown in the accompanying drawings, Figures 1-10 The vacuum booster push rod head tightening equipment includes frame 1, equipment platform 2, upper support plate 3, lower support plate 4, guide column 5, jacking cylinder 6, positioning plate 7, support foot 8, servo motor 9, speed reducer 10, driving gear 11, driven gear 12, torque sensor 13, fixed plate 14, first supporting plate 15, second supporting plate 16, measuring rod 17, laser displacement sensor 18, pre-press spring 19, shaft coupling 20, bearing 21, compression sleeve 22, support column 23, first sliding sleeve 24, fixed rod 25, second sliding sleeve 26, front shell positioning ring 27, push rod fixing sleeve 28, push rod head adjusting sleeve 29, support frame 30, flat surface 31, inclined surface 32, bearing column 33, touch screen 34, vacuum booster 100, push rod 101, push rod head 102, fixed bolt 103, front shell 104, calibration sleeve 200, calibration rod 201 and locking nut 202.

[0040] Reference the accompanying drawings, Figure 1 , 2The equipment platform 2 is arranged on the rack 1, a jacking cylinder 6 is installed below the equipment platform 2, an upper support plate 3 is supported on the equipment platform 2 through three guide columns 5. The piston rod of the jacking cylinder 6 penetrates the equipment platform 2, and is connected to drive a lower support plate 4, so that the lower support plate 4 moves up and down along the guide columns 5. A positioning plate 7 is fixed on the lower support plate 4 through three support feet 8, and serves as a positioning assembly. A plurality of hole positions are formed in the positioning plate 7, as shown in Figure 10 The vacuum booster 100 is fixed through a fixing bolt 103 and the corresponding hole position. The lower part of the vacuum booster 100 penetrates the center hole of the positioning plate 7, and the vacuum booster 100 is positioned and installed on the lower support plate 4 by using the positioning assembly.

[0041] As shown in Figure 4 , 5 , the fixing plate 14 is supported on the upper support plate 3 through four support columns 23. The fixing plate 14 is provided with a servo driving device. The servo driving device comprises a servo motor 9 and a speed reducer 10 driven by the servo motor 9. The output end of the speed reducer 10 drives one end of a torque sensor 13 through a shaft coupling 20. The other end of the torque sensor 13 drives a driving gear 11. The driving gear 11 is in meshing transmission with a driven gear 12. The driven gear 12 drives a push rod head adjusting sleeve 29 through a clutch. Figure 6 , 7 The clutch is a jaw clutch. The jaw clutch comprises three teeth arranged at the lower end of the driven gear 12 and the upper end of the push rod head adjusting sleeve 29. Each tooth has a flat surface 31 and an inclined surface 32. Preferably, the angle of the inclined surface is 20°, which facilitates the introduction of the hexagonal head of the push rod 101.

[0042] Referring to Figure 3 , 4 , the measuring rod 17 penetrates the fixing plate 14, the driven gear 12 and the upper support plate 3 in sequence. The push rod head adjusting sleeve 29 is sleeved on the bottom end of the measuring rod 17. The push rod fixing sleeve 28 is further sleeved on the push rod head adjusting sleeve 29. The front shell positioning ring 27 is sleeved on the push rod fixing sleeve 28, and the front shell positioning ring 27 can position the front shell 104 of the vacuum booster 100. The laser displacement sensor 18 is further installed on the fixing plate 14 through the fixing rod 25, and the laser displacement sensor 18 is located directly above the upper end surface of the measuring rod 17. The laser displacement sensor 18 is used to monitor the displacement of the measuring rod 17 in real time. Further, holes are formed in the lower ends of the push rod fixing sleeve 28 and the push rod head adjusting sleeve 29, so as to facilitate the introduction of the push rod 101 of the vacuum booster 100. As shown in Figure 10 , the push rod head 102 is connected to the push rod 101.

[0043] Further, as shown in Figure 4 , 5As shown in Figure 8, a first support plate 15 and a second support plate 16 are sequentially mounted on the support column 23, with the first support plate 15 and the second support plate 16 located between the fixed plate 14 and the upper support plate 3. A bearing 21 is fitted onto both the upper and lower ends of the driving gear 11 and the driven gear 12, and each bearing 21 is also pressed onto the corresponding first support plate 15 or second support plate 16 by a clamping sleeve 22 (and bolts). A first sliding sleeve 24 and a second sliding sleeve 26 are sequentially mounted on the measuring rod 17, wherein one end of the first sliding sleeve 24 is slidably mounted on a support column 23, and both ends of the second sliding sleeve 26 are slidably mounted on a support column 23, and a preload spring 19 is fitted onto the measuring rod 17 between the first sliding sleeve 24 and the fixed plate 14.

[0044] Preferably, a plurality of load-bearing columns 33 are provided between the first support plate 15 and the second support plate 16 for support, and a plurality of load-bearing columns 33 are also provided between the second support plate 16 and the upper support plate 3 for support. The torque sensor 13 is supported on the first support plate 15 by a support frame 30.

[0045] Furthermore, a touch screen 34 is also installed on one of the guide pillars 5. The touch screen 34 is electrically connected and communicates with the torque sensor 13 and the laser displacement sensor 18, and can display the torque and displacement values ​​in real time.

[0046] like Figure 9 As shown, the calibration sleeve 200 is used to be fitted onto the front housing positioning ring 27 before tightening. The calibration rod 201 is fixed in the center of the calibration sleeve 200 by the locking nut 202. The calibration rod 201 can be inserted into the push rod head adjustment sleeve 29 and cooperate with the measuring rod 17 and the laser displacement sensor 18 to achieve zero-point calibration.

[0047] The working process of this utility model:

[0048] Before starting, zero-point calibration is performed. The calibration sleeve 200 is placed on the front shell positioning ring 27, so that the upper end face of the calibration sleeve is in close contact with the front shell positioning ring 27. The calibration rod 201 is inserted into the push rod head adjustment sleeve 29 and contacts the lower end of the measuring rod 17, and the measuring rod 17 is lifted up. The laser displacement sensor 18 measures the position of the upper end face of the measuring rod 17 to determine the zero-point position.

[0049] The speed reducer 10 is connected with the torque sensor 13 by the shaft coupling 20, the torque sensor 13 is connected with the driving gear 11 by the key, the driven gear 12 is connected with the push rod head adjusting sleeve 29 by the jaw clutch. The clockwise contact surface is the flat surface 31, the counterclockwise contact surface is the 20° inclined surface 32, which is convenient for the hexagonal introduction of the push rod head 102. When the servo motor 9 is started, the torque sensor 13 is rotated by the shaft coupling 20, the driving gear 11 is rotated by the torque sensor 13, the driven gear 12 is rotated by the driving gear 11, and the push rod head adjusting sleeve 29 is rotated by the driven gear 12 through the jaw clutch. After the servo motor is started, it rotates clockwise 1 / 4 turn, then counterclockwise 1 / 4 turn, and reciprocates 3 times, thereby driving the push rod fixed sleeve 28 and the push rod head adjusting sleeve 29 to introduce the push rod 101, so that the vacuum booster 100 can be normally adjusted to the size range, and the automatic adjustment of the push rod head 102 is completed.

[0050] It can be understood that equivalent replacement or change of the technical scheme and the utility model concept of the utility model by those skilled in the art shall belong to the protection scope of the claims of the utility model.

Claims

1. A vacuum booster push rod head tightening device characterized by, The utility model relates to a kind of vacuum booster test bench, including: Rack (1), equipment platform (2) is arranged on it, jacking cylinder (6) is installed below equipment platform (2); Upper support plate (3) is supported on equipment platform (2) by several guide columns (5); Lower support plate (4) is driven and moves up and down along guide column (5) by jacking cylinder (6) connection; Positioning assembly is installed on lower support plate (4), for fixing, positioning vacuum booster (100); Fixed plate (14) is supported on upper support plate (3) by several support columns (23), servo drive device is installed on fixed plate (14), for connecting driving one end of torque sensor (13), the other end of torque sensor (13) is connected driving driving gear (11), driving gear (11) is engaged transmission with driven gear (12), driven gear (12) is connected driving push rod head adjusting sleeve (29) by clutch, laser displacement sensor (18) is also provided on fixed plate (14);And Measuring rod (17) is successively penetrated fixed plate (14), driven gear (12) and upper support plate (3), push rod head adjusting sleeve (29) is set in measuring rod (17) bottom, push rod head adjusting sleeve (29) is set in push rod fixed sleeve (28) outside, push rod fixed sleeve (28) is set in front shell positioning ring (27) outside, for positioning the front shell (104) of vacuum booster (100), laser displacement sensor (18) is located above measuring rod (17), for real-time monitoring the displacement of measuring rod (17); The lower end of the push rod fixed sleeve (28) and the push rod head adjusting sleeve (29) is holed, for leading into the push rod (101) of vacuum booster (100), the push rod (101) is connected with the push rod head (102).

2. The vacuum booster push rod head tightening apparatus according to claim 1, characterized by: The servo drive device includes servo motor (9) and speed reducer (10) driven by servo motor (9), and the output end of speed reducer (10) drives torque sensor (13) through shaft coupling (20).

3. The vacuum booster push rod head tightening apparatus according to claim 1, characterized by: The first support plate (15) and the second support plate (16) are successively penetrated on the support column (23), and the first support plate (15) and the second support plate (16) are located between the fixed plate (14) and the upper support plate (3);The upper and lower ends of the driving gear (11) and the driven gear (12) are sleeved with bearings (21), and the bearings (21) are pressed on the corresponding first support plate (15) or second support plate (16) by pressing sleeve (22).

4. The vacuum booster push rod head tightening apparatus according to claim 3, characterized by: The first sliding sleeve (24) and the second sliding sleeve (26) are successively sleeved on the measuring rod (17), one end of the first sliding sleeve (24) is sleeved and slid on a support column (23), both ends of the second sliding sleeve (26) are sleeved and slid on a support column (23), and the pre-compression spring (19) is sleeved on the measuring rod (17) between the first sliding sleeve (24) and the fixed plate (14).

5. The vacuum booster push rod head tightening apparatus according to claim 3, characterized by: A plurality of bearing columns (33) are arranged between the first support plate (15) and the second support plate (16) for supporting, a plurality of bearing columns (33) are also arranged between the second support plate (16) and the upper support plate (3) for supporting, and the torque sensor (13) is supported on the first support plate (15) by the support frame (30).

6. The vacuum booster push rod head tightening apparatus of claim 1, wherein: The positioning assembly comprises a positioning plate (7) fixed on the lower supporting plate (4) by a plurality of supporting feet (8), a plurality of hole positions are formed on the positioning plate (7), and the vacuum booster (100) is fixed on the corresponding hole position by a fixing bolt (103).

7. The vacuum booster push rod head tightening apparatus of claim 1, wherein: The clutch adopts a jaw clutch, the jaw clutch comprises a plurality of teeth arranged on the lower end of the driven gear (12) and the upper end of the push rod head adjusting sleeve (29), and the teeth have a flat surface (31) and an inclined surface (32).

8. The vacuum booster push rod head tightening apparatus according to claim 1, characterized by: The touch screen (34) is installed on a guide column (5), and the touch screen (34) is electrically connected with the torque sensor (13) and the laser displacement sensor (18) and is used for displaying the torque and displacement values in real time.

9. The vacuum booster push rod head tightening apparatus of claim 1, wherein: The calibration sleeve (200) is used for sleeving on the front shell positioning ring (27), the center of the calibration sleeve (200) is fixed with the calibration rod (201) through the locking nut (202), the calibration rod (201) is used for penetrating into the push rod head adjusting sleeve (29), and zero point calibration is realized by cooperating with the measuring rod (17) and the laser displacement sensor (18).

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