Automatic assembly dimension detection device for stabilizer bar assembly

Abstract

An automatic assembly dimension detection device for a stabilizer bar assembly (10). The device comprises a base (11), a support base (12), a workpiece table (13), a pair of clamp positioning sliders (14), a slider driving mechanism (2), a clamp spacing detection mechanism (4), a pair of push block bases (51), a pair of push blocks (52), a push block driving mechanism (6), and a centering detection mechanism (7). The support base (12) is fixedly disposed on the base (11). The workpiece table (13) is mounted on the support base (12) in such a manner that the workpiece table (13) is linearly movable in an axial direction of the stabilizer bar assembly (10). The pair of clamp positioning sliders (14) are each mounted on the workpiece table (13) in such a manner that the clamp positioning sliders (14) are linearly movable in the axial direction of the stabilizer bar assembly (10). The slider driving mechanism (2) is used for driving the pair of clamp positioning sliders (14) to move toward or away from each other. The push block driving mechanism (6) is used for driving the pair of push blocks (52) to move toward or away from each other, so that the pair of push blocks (52) can abut against the outer sides of a pair of end heads (103) of the stabilizer bar assembly (10). The invention features a high degree of automation, and enables convenient and rapid detection of the spacing between two clamps (101) of the stabilizer bar assembly (10) and the degree of centering between the two clamps (101) and the two end heads (103).

Description

Assembly size automatic detection device for stabilizer bar assembly TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile stabilizer bar manufacturing, in particular to a technology for detecting the assembly size of an automobile stabilizer bar. BACKGROUND

[0002] A stabilizer bar assembly is a component assembled on a passenger vehicle chassis suspension, which relies on its rigidity to suppress body roll. The assembly position of the stabilizer bar assembly and other components of the vehicle body is crucial to whether it can play its designed role. After the stabilizer bar body is assembled with the stabilizer bar bushing and the clamp to form the stabilizer bar assembly, the clamp hole and the stabilizer bar end hole serve as assembly holes for connecting with other components, and the size and position relationship of the holes must be inspected in time. The existing inspection method mainly relies on manual measurement, which is time-consuming and inefficient. SUMMARY

[0003] The technical problem to be solved by the present application is to provide an assembly size automatic detection device for a stabilizer bar assembly, which has high automation degree, can conveniently and quickly detect the distance between the two clamps of the stabilizer bar assembly, the centering degree of the two clamps and the two end heads, and has high accuracy of detection results.

[0004] The further technical problem to be solved by the present application is to provide an assembly size automatic detection device for a stabilizer bar assembly, which can automatically detect whether the position of the end hole of the two end heads of the stabilizer bar assembly is qualified.

[0005] To solve the above technical problems, the technical solution adopted by the present application is:

[0006] The assembly size automatic detection device of the stabilizer bar assembly comprises a base, a support seat, a workpiece table, a pair of clamp positioning sliding tables, a sliding table driving mechanism, a clamp spacing detection mechanism, a pair of push block seats, a pair of push blocks, a push block driving mechanism and a centering detection mechanism; the support seat is fixedly arranged on the base, the workpiece table is installed on the support seat in a manner that can linearly move along the axial direction of the stabilizer bar assembly, and the pair of clamp positioning sliding tables are installed on the workpiece table in a manner that can linearly move along the axial direction of the stabilizer bar assembly; each clamp positioning sliding table is provided with a clamp seat for supporting a clamp of the measured stabilizer bar assembly, the top surface of the clamp seat is provided with a pair of detection pins, and the pair of detection pins are used for plug-in cooperation with a pair of clamp holes of the corresponding clamp of the measured stabilizer bar assembly; the sliding table driving mechanism is used for driving the pair of clamp positioning sliding tables to move close to or away from each other; the clamp spacing detection mechanism is used for detecting the deviation of the spacing of the clamps of the measured stabilizer bar assembly relative to the standard clamp spacing; the pair of push block seats are fixedly arranged on the base, the pair of push blocks are installed on the pair of push block seats in a manner that can linearly move along the axial direction of the stabilizer bar assembly, and the pair of push blocks are located on the two sides of the measured stabilizer bar assembly; the push block driving mechanism is used for driving the pair of push blocks to move close to or away from each other, so that the pair of push blocks can abut against the outer sides of a pair of end heads of the stabilizer bar assembly; the centering detection mechanism comprises a centering plug, a centering plug displacement mechanism and a centering insertion slot arranged on the workpiece table, the centering plug displacement mechanism is used for driving the centering plug to extend or retract along a direction perpendicular to the axial direction of the stabilizer bar assembly, so as to detect whether the centering degree of the two clamps and the two end heads of the stabilizer bar assembly is qualified based on whether the centering plug can be inserted into the centering insertion slot.

[0007] The assembly size automatic detection device of the stabilizer bar assembly comprises a pair of end head hole position detection mechanisms, and the pair of end head hole position detection mechanisms are respectively installed on the pair of push blocks; each end head hole position detection mechanism comprises an end head hole plug and an end head hole plug displacement mechanism, the end head hole plug displacement mechanism is used for driving the end head hole plug to extend or retract, so as to detect whether the position of the end head hole is qualified based on whether the end head hole plug can be inserted into the end head hole of the stabilizer bar assembly.

[0008] The technical effects generated by the above technical solutions are obvious.

[0009] 1. The assembly size automatic detection device of the stabilizer bar assembly can detect whether the spacing between the two clamps, the centering degree of the two clamps and the two end heads and the position of the end head hole of the two end heads of the stabilizer bar assembly are qualified through automatic control, and the detection efficiency is improved.

[0010] 2. The present application can avoid the phenomenon of unqualified products caused by human detection action errors and judgment errors, and improve the accuracy of the detection results compared with manual detection.

[0011] SUMMARY

[0012] The application will be further described below in conjunction with the accompanying drawings.

[0013] Fig. 1 shows a working state diagram of the assembly size automatic detection device of the stabilizer bar assembly according to an embodiment of the present application.

[0014] Figs. 2 and 3 respectively show perspective diagrams of the assembly size automatic detection device of the stabilizer bar assembly according to an embodiment of the present application from different angles.

[0015] Fig. 4 shows a diagram of the clamp positioning sliding table according to an embodiment of the present application.

[0016] Fig. 5 shows a structural diagram of the clamp spacing detection mechanism according to an embodiment of the present application.

[0017] Fig. 6 shows a structural diagram of the end hole position detection mechanism according to an embodiment of the present application.

[0018] Fig. 7 shows an electrical control principle diagram of the assembly size automatic detection device of the stabilizer bar assembly according to an embodiment of the present application. Best Mode for Carrying Out the Invention

[0019] The application will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figs. 1 to 6 show structural diagrams of the assembly size automatic detection device of the stabilizer bar assembly according to an embodiment of the present application. Please refer to Figs. 1 to 6, the assembly size automatic detection device of the stabilizer bar assembly according to an embodiment of the present application comprises a base 11, a support seat 12, a workpiece table 13, a pair of clamp positioning sliding tables 14, a sliding table driving mechanism 2, a pair of clamp pressing mechanisms 3, a clamp spacing detection mechanism 4, a pair of push block seats 51, a pair of push blocks 52, a push block driving mechanism 6, a centering detection mechanism 7 and a pair of end hole position detection mechanisms 8.

[0021] The surface of the base 11 is provided with reference points, lines and surfaces for three-coordinate detection. The support base 12 is fixedly arranged on the base 11, and the workpiece table 13 is installed on the support base 12 in a manner that it can linearly move along the axial direction of the stabilizer bar assembly. The bottom of the workpiece table 13 is provided with a sliding block 134, and the top of the support base 12 is provided with a guide rail matched with the sliding block 134. A pair of clamp positioning sliding tables 14 are installed on the workpiece table 13 in a manner that they can linearly move along the axial direction of the stabilizer bar assembly. The bottom of each clamp positioning sliding table 14 is provided with a sliding block 143, and the top of the workpiece table 13 is provided with a sliding groove 133 matched with the sliding block. Each clamp positioning sliding table 14 is provided with a clamp seat 141 for supporting a clamp 101 of the measured stabilizer bar assembly 10, and the top surface of the clamp seat 141 is provided with a pair of detection pins 142 for plug-in cooperation with a pair of clamp holes 102 of the corresponding clamp 101 of the measured stabilizer bar assembly 10.

[0022] The sliding table driving mechanism 2 is used to drive the pair of clamp positioning sliding tables 14 to move close to or away from each other. In the embodiment, the sliding table driving mechanism 2 is used to drive the pair of clamp positioning sliding tables 14 to synchronously move equidistantly. The sliding table driving mechanism 2 comprises a rotating seat 21, a rotating seat driving component and a pair of connecting rods 23 with equal lengths. The rotating seat 21 is rotatably arranged on the workpiece table 13 and located between the pair of clamp positioning sliding tables 14. The rotating seat driving component is connected with the rotating seat 21 and used to drive the rotating seat 21 to rotate. The two ends of one connecting rod 23 are respectively hinged with the rotating seat 21 and one of the clamp positioning sliding tables, and the two ends of the other connecting rod 23 are respectively hinged with the rotating seat 21 and the other clamp positioning sliding table. Alternatively, the rotating seat driving component is a rotating seat driving motor 22 fixed to the base 11.

[0023] A pair of clamp pressing mechanisms 3 are respectively connected with the pair of clamp positioning sliding tables 14 and used to press the clamps placed on the clamp seats 141 of the pair of clamp positioning sliding tables 14. In the embodiment, each clamp pressing mechanism 3 comprises a pressing cylinder 31 and a pressing block 32. The cylinder body of the pressing cylinder 31 is vertically upward and connected with the clamp seat 141. The pressing block 32 is connected with the push rod of the pressing cylinder 31 and located above the clamp placed on the clamp seat 141. Preferably, the pressing block 32 is made of soft and non-abrasive material such as rubber or nylon block to prevent damage to the clamp.

[0024] The clamp spacing detection mechanism 4 is used to detect the deviation of the clamp spacing of the measured stabilizer bar assembly relative to the standard clamp spacing. In the embodiment, the clamp spacing detection mechanism 4 comprises a zero insertion pin 41, a zero insertion pin displacement mechanism 42, a measuring component 43, and a zero insertion slot 140 provided on any clamp positioning slide 14. The zero insertion pin displacement mechanism 42 is fixed to the workpiece table 13 and is used to drive the zero insertion pin 41 to extend or retract along a direction perpendicular to the axial direction of the stabilizer bar assembly, so that the zero insertion pin 41 is inserted into the zero insertion slot 140, thereby determining the zero position of the tolerance of the clamp spacing (the clamp spacing at the zero position is the standard clamp spacing). The measuring component 43 is used to detect the deviation of the clamp spacing relative to the zero position. Preferably, the measuring component 43 adopts a micrometer or a dial gauge, which is fixed to the gauge seat 18, and the gauge seat 18 is fixed to the workpiece table 13. The clamp positioning slide 14 provided with the zero insertion slot 140 has a contact portion 143 in contact with the measuring component 43, and the measuring head of the micrometer or the dial gauge abuts against the contact portion 146.

[0025] Optionally, the aforementioned zero insertion pin displacement mechanism 42 comprises a zero insertion pin driving cylinder, the cylinder body of the zero insertion pin driving cylinder 42 is horizontally fixed to the first fixed seat 15, and the first fixed seat 15 is fixed to the workpiece table 13. The push rod of the zero insertion pin driving cylinder 42 is connected with the zero insertion pin 41.

[0026] A pair of push block seats 51 are fixedly arranged on the base 11, and a pair of push blocks 52 are respectively installed on the pair of push block seats 51 in a linearly movable manner along the axial direction of the stabilizer bar assembly. The pair of push blocks 52 are respectively located on the two sides of the measured stabilizer bar assembly 10.

[0027] The push block driving mechanism 6 is used to drive the pair of push blocks 52 to move close to or away from each other, so that the pair of push blocks 52 can abut against the outer sides of the pair of end heads 103 of the stabilizer bar assembly 10. In the embodiment, the push block driving mechanism 6 is used to drive the pair of push blocks 52 to move synchronously and equidistantly. The push block driving mechanism 6 comprises a push block driving cylinder 61, a pair of swing levers 62, a pair of cross bars 63, at least a pair of guide seats 64, and a pair of connecting rods 65. The pair of swing levers 62, the pair of cross bars 63, each pair of guide seats 64, and the pair of connecting rods 65 are respectively arranged on the transverse two sides of the push block driving cylinder 61. The lengths of the pair of swing levers 62 are equal, the lengths of the pair of cross bars 63 are equal, and the lengths of the pair of first connecting rods 65 are equal. The cylinder body of the push block driving cylinder 61 is horizontally fixed to the base 11. The first ends of the pair of swing levers 62 are respectively hinged to the push rod 611 of the push block driving cylinder 61, and the second ends of the pair of swing levers 62 are respectively hinged to the first ends of the pair of cross bars 63. Each cross bar 63 penetrates through the guide seat 64 and the push block seat 51 on the same side. The second end of each cross bar 63 is hinged to the bottom end of the connecting rod 65 on the same side. The middle part of each connecting rod 65 is hinged to the push block seat 51 on the same side, and the top end of each connecting rod 65 is hinged to the push block 52 on the same side, so as to drive the push block 52 to move.

[0028] In the example shown in the figure, the number of guide seats 64 is two pairs, and each cross bar 63 passes through two guide seats 64 on the same side in turn.

[0029] The centering detection mechanism 7 is used to detect the centering degree of the two clamps 101 and the two end heads 103 of the stabilizing rod assembly, which refers to the coincidence degree of the center lines between the two clamps 101 and the center lines between the two end heads 103. In the embodiment, the centering detection mechanism 7 includes a centering pin 71, a centering pin displacement mechanism 72, and a centering slot 131 provided on the worktable 13, and the centering pin displacement mechanism 72 is used to drive the centering pin 71 to extend or retract along a direction perpendicular to the axial direction of the stabilizing rod assembly, so as to detect whether the centering degree of the two clamps and the two end heads of the stabilizing rod assembly is qualified based on whether the centering pin 71 can be inserted into the centering slot 131. When one pair of push blocks 52 abuts the outer side of one pair of end heads 103 of the stabilizing rod assembly 10, if the centering pin 71 can be inserted into the centering slot 131, it indicates that the centering degree of the two clamps 101 and the two end heads 103 is qualified, otherwise it is unqualified. In the embodiment, the centering pin displacement mechanism 72 is fixed to the support base 12, specifically, the centering pin displacement mechanism 72 includes a centering pin driving cylinder, the cylinder body of the centering pin driving cylinder 72 is fixed horizontally to the second fixing base 16, the second fixing base 16 is fixed to the support base 12, and the push rod of the centering pin driving cylinder 72 is connected with the centering pin 71.

[0030] One pair of end head hole position detection mechanisms 8 are respectively installed on one pair of push blocks 52. Each end head hole position detection mechanism 8 includes an end head hole pin (not shown in the figure) which can move along the axial direction of the stabilizing rod assembly and an end head hole pin displacement mechanism 82 which is used to drive the end head hole pin to extend or retract along the axial direction of the stabilizing rod assembly, so as to detect whether the position of the end head hole is qualified based on whether the end head hole pin can be inserted into the end head hole 104 of the stabilizing rod assembly 10. In the embodiment, the end head hole pin displacement mechanism 82 includes an end head hole pin driving cylinder, the cylinder body of the end head hole pin driving cylinder 82 is fixed horizontally to the outer side of the push block 52, the push block 52 is provided with a through hole which extends along the width direction of the push block 52 and penetrates the outer side and the inner side of the push block, the push rod of the end head hole pin driving cylinder 82 extends into the through hole and is connected with the end head hole pin.

[0031] The actions of the slide driving mechanism 2, the pair of clamp pressing mechanisms 3, the clamp spacing detection mechanism 4, the push block driving mechanism 6, the centering detection mechanism 7 and the pair of end hole position detection mechanisms 8 are controlled by the electrical control device 9. Please refer to Fig. 7. In the present embodiment, the electrical control device 9 comprises a control switch 91 and a controller 92, the output of the control switch 91 is connected to the input of the controller 92. The controller 92 is used to control the actions of the rotating seat driving motor 22, the pressing cylinders 31 of the pair of clamp pressing mechanisms 3, the zero position plug driving cylinder 42, the push block driving cylinder 61, the centering plug driving cylinder 72 and the end hole plug driving cylinder 82. The aforementioned pressing cylinders 31, zero position plug driving cylinder 42, push block driving cylinder 61, centering plug driving cylinder 72 and end hole plug driving cylinder 82 are all provided with position detection components for detecting the extension and retraction positions of the cylinder push rods, the signal output of the position detection components is connected to the input of the controller 92. The position detection components are for example magnetic ring induction switches (the push rods of the cylinders are provided with magnetic rings) or position sensors. The controller 92 preferably adopts a PLC controller.

[0032] Before detecting the assembly size of the stabilizer bar assembly, a zero setting step is performed, i.e. the controller 92 controls the rotating seat driving motor 22 to rotate, thereby driving the pair of clamp positioning slides 14 to move until the zero position plug 41 is inserted into the zero position slot 140, thereby determining the zero position when the tolerance of the spacing between the pair of clamps is zero (the spacing tolerance between the pair of clamps is zero at the zero position). At this time, the measuring component 43 (electronic micrometer or percentimeter) is zero set.

[0033] Then, the pair of clamps of the stabilizer bar assembly to be detected are placed on the clamp seats of the pair of clamp positioning slides, the controller 92 is controlled to control the rotating seat driving motor 22 to rotate, thereby driving the pair of clamp positioning slides 14 to move until the pair of detection pins 142 are respectively inserted into the pair of clamp holes 102 of the corresponding clamps 101.

[0034] After the staff presses the control switch 91, the stabilizer bar assembly assembly size automatic detection device sequentially completes the fixation of the stabilizer bar assembly (the pair of clamp pressing mechanisms 3 respectively press the two clamps of the stabilizer bar assembly), the spacing size detection of the two clamps of the stabilizer bar assembly, the centering degree detection of the two clamps of the stabilizer bar assembly and the two ends, the position detection of the stabilizer bar end holes, and qualified release after completion of the detection; if fixation abnormality, detection abnormality or detection of unqualified products occurs during the detection process, the controller 92 will real-time issue an alarm information (for example, audible and visual alarm, etc.), and can also display the specific abnormal problems on the display screen of the controller, and at the same time the abnormality will be recorded in the controller 92.

[0035] The detection process of the stabilizer bar assembly assembly size automatic detection device of the present embodiment will be described in more detail below.

[0036] Before the assembly size of the stabilizer bar assembly is detected, a zero setting step is performed, that is, the controller 92 controls the rotating seat driving motor 22 to rotate, thereby driving the pair of clamp positioning slides 14 to move until the zero position plug 41 is inserted into the zero position slot 140, thereby determining the zero position when the tolerance of the clamp spacing is zero, and at this time, the measuring component 43 (electronic dial gauge or dial gauge) is zero set. If the zero position plug 41 is abnormally inserted into the zero position slot 140, the magnetic ring inductive switch or the position sensor will not send a signal to the controller 92 that the push rod is extended to the position, the controller 92 will stop and alarm, and will not perform the subsequent steps.

[0037] Then, the pair of clamps of the stabilizer bar assembly to be detected are respectively placed on the clamp seats of the pair of clamp positioning slides, and the controller 92 is controlled to control the rotating seat driving motor 22 to rotate, thereby driving the pair of clamp positioning slides 14 to move until the pair of detection pins 142 are respectively inserted into the pair of clamp holes 102 of the corresponding clamp 101.

[0038] After the staff member starts the control switch 91, the controller 92 controls the push rod of the pair of pressing cylinders 31 to descend, and the pressing block 32 presses the corresponding clamp 101, so that the stabilizer bar assembly 10 is fixed on the detection device. At this time, the value displayed on the measuring component 43 is the error of the spacing of the clamps on both sides of the detected stabilizer bar assembly and the required value. The measuring component 43 sends the detection result to the controller 92, and the controller 92 compares the detection result with the preset allowable tolerance range of the clamp spacing. If the measured error of the dial gauge or dial gauge exceeds the preset allowable tolerance range, the controller 92 stops and alarms, and does not continue to perform the subsequent detection.

[0039] The controller 92 controls the push rod 611 of the push block driving cylinder 61 to move, thereby driving the pair of push blocks 52 to move, until the pair of push blocks 52 respectively abut against the outer sides of the two end heads 103 of the measured stabilizer bar assembly 10. The controller 92 then controls the push rod of the centering plug driving cylinder 72 to extend, thereby driving the centering plug 71 to move forward. If the centering plug 71 is inserted into the centering slot 131, it indicates that the centering degree of the two clamps 101 and the two end heads 103 is qualified, and the controller 92 will perform the subsequent end head hole position detection. Otherwise, the controller 92 stops and alarms, and does not continue to perform the subsequent detection.

[0040] On the premise that the centering degree is qualified, the controller 92 automatically controls the push rod of the end head hole plug driving cylinder 82 to extend, thereby driving the end head hole plug to move forward. If the end head hole plug is inserted into the end head hole, it indicates that the position of the stabilizer bar end head hole based on the clamp reference position is qualified, otherwise it is not qualified, and the controller 92 will stop and alarm. Industrial practicability

[0041] The assembly size automatic detection device of the stabilizer bar assembly of the embodiment can detect whether the distance between the two clamps of the stabilizer bar assembly, the centering degree of the two clamps and the two end heads and whether the position of the end head holes of the two end heads are qualified through automatic control, and the detection efficiency is improved.

Claims

1. An apparatus for automatically detecting the assembly dimension of a stabilizer bar assembly, characterized by, The device comprises a base, a support seat, a workpiece table, a pair of clamp positioning sliding tables, a sliding table driving mechanism, a clamp spacing detection mechanism, a pair of push block seats, a pair of push blocks, a push block driving mechanism and a centering detection mechanism. The support seat is fixedly arranged on the base, the workpiece table is linearly movable along the axial direction of the stabilizer bar assembly and is arranged on the support seat, and the pair of clamp positioning sliding tables are linearly movable along the axial direction of the stabilizer bar assembly and are arranged on the workpiece table. Each clamp positioning sliding table is provided with a clamp seat for supporting the clamp of the measured stabilizer bar assembly, the top surface of the clamp seat is provided with a pair of detection pins, and the pair of detection pins are used for plug-in cooperation with a pair of clamp holes of the corresponding clamp of the measured stabilizer bar assembly. The sliding table driving mechanism is used for driving the pair of clamp positioning sliding tables to move close to or away from each other. The clamp spacing detection mechanism is used for detecting the deviation of the spacing of the clamps of the measured stabilizer bar assembly relative to the standard clamp spacing.

2. The apparatus of claim 1, wherein The pair of push block seats are fixedly arranged on the base, the pair of push blocks are linearly movable along the axial direction of the stabilizer bar assembly and are arranged on the pair of push block seats, and the pair of push blocks are arranged on the two sides of the measured stabilizer bar assembly.

3. The apparatus of claim 2, wherein, The push block driving mechanism is used for driving the pair of push blocks to move close to or away from each other so that the pair of push blocks can abut against the outer sides of the pair of end heads of the stabilizer bar assembly.

4. The apparatus of claim 1, wherein, The centering detection mechanism comprises a centering plug, a centering plug displacement mechanism and a centering slot arranged on the workpiece table.

5. The apparatus of claim 1, wherein The centering plug displacement mechanism is used for driving the centering plug to extend or retract along a direction perpendicular to the axial direction of the stabilizer bar assembly, so as to detect whether the centering degree of the two clamps and the two end heads of the stabilizer bar assembly is qualified based on whether the centering plug can be inserted into the centering slot. The stabilizer bar assembly assembly size automatic detection device comprises a pair of clamp pressing mechanisms, the pair of clamp pressing mechanisms are connected with the pair of clamp positioning sliding tables respectively, and are used for pressing the clamps arranged on the clamp seats of the pair of clamp positioning sliding tables respectively. Each clamp pressing mechanism comprises a pressing cylinder and a pressing block. The cylinder body of the pressing cylinder is vertically upward and is connected with the clamp seat, the pressing block is connected with the push rod of the pressing cylinder and is located above the clamp arranged on the clamp seat. The sliding table driving mechanism is used for driving the pair of clamp positioning sliding tables to move synchronously and equidistantly. The sliding table driving mechanism comprises a rotating seat, a rotating seat driving component and a pair of connecting rods, the lengths of the pair of connecting rods are equal, the rotating seat is pivoted with the workpiece table and is located between the pair of clamp positioning sliding tables, the rotating seat driving component is connected with the rotating seat and is used for driving the rotating seat to rotate, one end of one connecting rod is hinged with the rotating seat and the other end of the one connecting rod is hinged with one of the clamp positioning sliding tables, and one end of the other connecting rod is hinged with the rotating seat and the other end of the other connecting rod is hinged with the other clamp positioning sliding table. The lengths of the pair of connecting rods are equal.

6. The apparatus of claim 1, wherein The clamp spacing detection mechanism comprises a zero position plug, a zero position plug displacement mechanism, a measuring component and a zero position slot arranged on any clamp positioning slide; the zero position plug displacement mechanism is fixed on the workpiece table and is used to drive the zero position plug to extend or retract along a direction perpendicular to the axial direction of the stabilizing rod assembly, so that the zero position plug is inserted into the zero position slot to determine the zero position when the tolerance of the clamp spacing is zero; the measuring component is used to detect the deviation of the clamp spacing relative to the zero position.

7. The apparatus of claim 6, wherein, The clamp positioning slide provided with the zero position slot has a contact portion in contact with the measuring component; The measuring component is a micrometer or a dial gauge, the micrometer or the dial gauge is fixed on a meter seat, the meter seat is fixed on the workpiece table, and the measuring head of the micrometer or the dial gauge abuts against the contact portion.

8. The apparatus of claim 1, wherein, The push block driving mechanism is used to drive the pair of push blocks to move synchronously and equidistantly.

9. The apparatus of claim 1, wherein, The push block driving mechanism comprises a push block driving cylinder, a pair of swing rods, a pair of cross rods, at least one pair of guide seats and a pair of connecting rods, the pair of swing rods, the pair of cross rods, each pair of guide seats and the pair of connecting rods are arranged on the transverse two sides of the push block driving cylinder respectively; the lengths of the pair of swing rods are equal, the lengths of the pair of cross rods are equal, and the lengths of the pair of first connecting rods are equal; The cylinder body of the push rod driving cylinder is horizontally fixed on the base table; the first ends of the pair of swing rods are respectively hinged with the push rods of the push block driving cylinder, and the second ends of the pair of swing rods are respectively hinged with the first ends of the pair of cross rods; each cross rod penetrates through the guide seat and the push block seat on the same side, the second end of each cross rod is hinged with the bottom end of the connecting rod on the same side, the middle part of each connecting rod is hinged with the push block seat on the same side, and the top end of each connecting rod is hinged with the push block on the same side, so as to drive the push block to move.

10. The apparatus according to any one of claims 1 to 9, wherein The assembly size automatic detection device of the stabilizing rod assembly comprises a pair of end hole position detection mechanisms, and the pair of end hole position detection mechanisms are respectively installed on the pair of push blocks; Each end hole position detection mechanism comprises an end hole plug and an end hole plug displacement mechanism, the end hole plug displacement mechanism is used to drive the end hole plug to extend or retract, so as to detect whether the end hole position is qualified based on whether the end hole plug can be inserted into the end hole of the stabilizing rod assembly.

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