A device for detecting the size of special-shaped automobile parts

Abstract

The invention relates to the technical field of dimension detection, and in particular to a dimension detection device for special-shaped automobile parts; the device comprises a bottom plate and a top plate directly above the bottom plate; the rear side of the bottom plate is fixedly connected to a bracket; the upper end of the bracket is connected to the upper surface of the top plate by a cylinder; a plurality of detection seats are arranged on the upper surface of the bottom plate; the positions of the plurality of detection seats correspond to the positions of holes of a workpiece to be detected; detection grooves are evenly arranged on the upper surface of the detection seat; the detection grooves are slidably connected to detection rods; a pressure sensor is arranged at the bottom of the detection groove; the invention drives the hole to be detected to approach the detection rod through the workpiece, so that the pressure values ​​of the pressure sensors at the lower ends of the plurality of detection rods are displayed, so as to quickly judge the hole position and hole spacing of the workpiece, and then quickly complete the detection of the hole spacing and hole size on the workpiece, and greatly improves the detection efficiency of automobile parts compared with the existing detection methods.

Description

Technical Field

[0001] The invention relates to the technical field of size detection, in particular to a device for detecting the size of special-shaped automobile parts. Background Art

[0002] After the auto parts are manufactured, they need to be dimensionally inspected to ensure their quality. Dimensional inspection of auto parts includes the measurement of length, thickness or similar linear dimensions, as well as the measurement of irregular surfaces or contours. It also includes the measurement of the hole spacing of auto parts. Stamping parts are a form of auto parts. For some stamping parts, whether the hole spacing on the stamping parts is qualified directly affects the subsequent installation of auto parts. The hole spacing on existing stamping parts is generally inspected in sequence by measuring tools such as calipers. Of course, this measurement method can cope with the situation where the number of holes on auto parts is small, but for some auto parts with a large number of holes, if calipers and other tools are still used for sequential measurement, it is undoubtedly inefficient and cannot meet the current auto parts inspection needs. Summary of the invention

[0003] In order to make up for the shortcomings of the prior art, the present invention proposes a device for detecting the size of special-shaped automobile accessories. The present invention drives the hole to be detected to approach the detection rod through the workpiece, so that the pressure value display of the pressure sensor at the lower end of multiple detection rods can be used to quickly judge the hole position and hole spacing of the workpiece, and then the hole spacing and hole size detection on the workpiece can be quickly completed. Compared with the existing detection method, the detection efficiency of automobile accessories is greatly improved.

[0004] The technical solution adopted by the present invention to solve its technical problems is: the device for detecting the size of special-shaped automobile accessories described in the present invention comprises a bottom plate and a top plate directly above the bottom plate; the rear side of the bottom plate is fixedly connected to a bracket; the upper end of the bracket is connected to the upper surface of the top plate by a cylinder; a plurality of detection seats are provided on the upper surface of the bottom plate; the positions of the plurality of detection seats correspond to the positions of the holes of the workpiece to be detected; detection grooves are evenly arranged on the upper surface of the detection seat; the detection grooves are slidably connected to a detection rod; a pressure sensor is provided at the bottom of the detection groove; the pressure sensor is electrically connected to a control system; the pressure sensor is connected to the lower end of the detection rod by a first spring; the outer diameter of the detection rod is smaller than the hole on the workpiece; the center position of the lower surface of the top plate is connected to an upper clamping seat; the lower end of the upper clamping seat can contact the workpiece as the top plate moves downward.

[0005] Preferably, the center of the upper surface of the bottom plate is connected to the lower clamp seat; a lower clamp groove is provided on the upper surface of the lower clamp seat; a lower clamp block is slidably connected in the lower clamp groove; the lower clamp block is connected to the bottom of the lower clamp groove by a lower spring; an upper clamp groove is provided on the lower surface of the upper clamp seat; an upper clamp block is slidably connected in the upper clamp groove; the bottom of the upper clamp groove is connected to the upper end of the upper clamp block by an upper spring.

[0006] Preferably, a plurality of prompt seats are provided on the lower surface of the top plate; the prompt seats correspond one-to-one with the detection seats in the vertical direction; a spotlight is provided at the center of the lower surface of the prompt seat; the aperture formed by the spotlight is larger than the hole diameter on the workpiece; the aperture specification formed by the spotlight is smaller than the cross-section of the detection seat.

[0007] Preferably, the prompt seat and the detection seat have the same specifications; the upper clamp seat and the lower clamp seat have the same specifications; the upper clamp block and the lower clamp block have the same specifications; the upper spring force is the same as the lower spring force; an annular groove is provided on the lower surface of the prompt seat; an annular sleeve is slidably connected in the annular groove; the upper end of the annular sleeve is connected to the bottom of the annular groove by a second spring; in the initial state, the length of the annular sleeve extending out of the annular groove is the same as the length of the detection rod extending out of the detection groove; in the initial state, the lower end of the upper clamp block is lower than the lower end of the annular sleeve; the upper end of the lower clamp block is higher than the upper end of the detection rod.

[0008] Preferably, the annular sleeve is composed of a plurality of arc-shaped sleeves that slide against each other; the upper end of the arc-shaped sleeve is connected to the bottom of the annular groove through respective second springs.

[0009] Preferably, replacement grooves are evenly provided on the lower surface of the top plate and the upper surface of the bottom plate; the upper end of the prompt seat and the lower end of the detection seat are fixedly connected to a replacement strip; and the replacement strip can be inserted into the replacement groove.

[0010] Preferably, the replacement groove wall is vertically and evenly provided with card grooves; the cross-section of the replacement strip is smaller than the cross-section of the prompt seat; the outer side of the replacement strip is vertically and evenly provided with grooves; the bottom of the groove is connected through a movable groove; a card block is slidably connected in the groove; the length of the card block closest to the workpiece is greater than that of other card blocks; a movable plate is movably connected in the movable groove; the movable plate is fixedly connected to multiple card blocks; the side of the movable plate facing away from the card block is connected to the wall of the movable groove by a third spring; and the multiple card blocks can be inserted into multiple card slots.

[0011] Preferably, the upper surface of the upper clamp seat and the lower surface of the lower clamp seat are both fixedly connected to the inserting strip; a threaded hole is provided at one end of the inserting strip away from the workpiece; the square inserting strip can be inserted into a square replacement slot; and a bolt is threadedly connected in the threaded hole.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. The present invention uses the workpiece to drive the hole to be detected close to the detection rod, so that the pressure value display of the pressure sensor at the lower end of multiple detection rods can be used to quickly determine the hole position and hole spacing of the workpiece, and then quickly complete the detection of the hole spacing and hole size on the workpiece. Compared with the existing detection method, the detection efficiency of automobile parts is greatly improved.

[0014] 2. The present invention aligns the position of the prompt seat with the hole position on the standard workpiece, so that during the placement of the workpiece to be inspected, it can be quickly determined whether the holes on the workpiece are offset according to whether the holes on the workpiece to be inspected fall into the aperture range emitted by the spotlight on the prompt seat, thereby quickly realizing a rough judgment of the hole spacing, and then cooperating with the detection of the detection rod, so that the hole detection efficiency of automotive accessories is further improved.

[0015] 3. In the present invention, as the workpiece continues to move downward, the workpiece will be subjected to an upward thrust by the detection rod. The detection rod aligned with the hole on the workpiece can pass through the hole on the workpiece, while the detection rod offset from the hole on the workpiece will give the workpiece an upward reaction force. However, since the lower end of the annular sleeve exerts a downward supporting force on the workpiece, damage to some thinner workpieces during the detection process is reduced, thereby achieving protection of the workpiece during the detection process and reducing the probability of workpiece deformation during detection.

[0016] 4. The present invention adjusts the horizontal position of the prompt seat on the top plate and the horizontal position of the detection seat on the bottom plate, so that the detection device can detect workpieces with different hole positions and hole numbers, thereby improving the size detection range of automobile parts and improving the practicality of detection; in addition, by adjusting the positions of the prompt seat and the detection seat in the vertical direction, the detection device can detect the hole positions of some uneven workpieces, thereby further expanding the detection range of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0018] Figure 1 is a stereogram of the present invention;

[0019] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 yes Figure 1 The enlarged view of point B in the middle;

[0021] Figure 4 yes Figure 1 A three-dimensional image from another angle;

[0022] Figure 5 is a cross-sectional schematic diagram of the position of the cutting in the present invention;

[0023] Figure 6 is a cross-sectional schematic diagram of the position of the replacement strip in the present invention;

[0024] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0025] Figure 8 yes Figure 6 The enlarged view of point D in the middle;

[0026] Fig. 9 yes Figure 6 Enlarged view of point E in the middle.

[0027] In the figure: bottom plate 1, bracket 11, cylinder 12, top plate 2, replacement groove 21, card slot 22, detection seat 3, detection groove 31, detection rod 32, pressure sensor 33, first spring 34, upper clamp seat 4, upper clamp groove 41, upper clamp block 42, upper spring 43, lower clamp seat 5, lower clamp groove 51, lower clamp block 52, lower spring 53, prompt seat 6, spotlight 61, annular groove 62, annular sleeve 63, arc sleeve 631, second spring 64, replacement strip 7, groove 71, movable groove 72, card block 73, movable plate 74, third spring 75, insertion strip 8, threaded hole 81, bolt 82. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figures 1 to 9 As shown, the present invention includes the following embodiments: Example 1

[0030] A device for detecting the size of special-shaped automobile parts comprises a base plate 1 and a top plate 2 directly above the base plate 1; a bracket 11 is fixedly connected to the rear side of the base plate 1; an upper end of the bracket 11 is connected to the upper surface of the top plate 2 by a cylinder 12; a plurality of detection seats 3 are arranged on the upper surface of the base plate 1; the positions of the plurality of detection seats 3 correspond to the positions of holes in a workpiece to be detected; detection grooves 31 are evenly arranged on the upper surface of the detection seats 3; the detection grooves 31 are slidably connected to detection rods 32; a pressure sensor 33 is arranged at the bottom of the detection groove 31; the pressure sensor 33 is electrically connected to a control system; the pressure sensor 33 is connected to the lower end of the detection rod 32 by a first spring 34; the outer diameter of the detection rod 32 is smaller than the hole on the workpiece; an upper clamping seat 4 is connected to the center position of the lower surface of the top plate 2; the lower end of the upper clamping seat 4 can contact the workpiece as the top plate 2 moves downward.

[0031] In this embodiment, the center of the upper surface of the base plate 1 is connected to the lower clamping seat 5; a lower clamping groove 51 is provided on the upper surface of the lower clamping seat 5; a lower clamping block 52 is slidably connected in the lower clamping groove 51; the lower clamping block 52 is connected to the bottom of the lower clamping groove 51 by a lower spring 53; an upper clamping groove 41 is provided on the lower surface of the upper clamping seat 4; an upper clamping block 42 is slidably connected in the upper clamping groove 41; the bottom of the upper clamping groove 41 and the upper end of the upper clamping block 42 are connected by an upper spring 43.

[0032] In this embodiment, a plurality of prompt seats 6 are provided on the lower surface of the top plate 2; the prompt seats 6 correspond one-to-one with the detection seats 3 in the vertical direction; a spotlight 61 is provided at the center of the lower surface of the prompt seat 6; the aperture formed by the spotlight 61 is larger than the hole diameter on the workpiece; the aperture specification formed by the spotlight 61 is smaller than the cross-section of the detection seat 3.

[0033] During operation, the inspector moves the plate-shaped workpiece to be inspected to the front side of the inspection device and starts the inspection device. The spotlight 61 in the inspection device will work and emit light. The spotlight 61 will irradiate the light on the surface of the corresponding inspection rod 32 below. Then the inspector places the workpiece to be inspected on the upper surface of the lower clamp 52. The spotlight 61 will irradiate the aperture on the upper surface of the workpiece under the shielding of the workpiece. In the vertical direction, since the upper end of the lower clamp 52 is higher than the inspection rod 32 under the support of the lower spring 53, after the plate-shaped workpiece is placed on the upper end of the lower clamp 52, the upper end of the inspection rod 32 does not contact the workpiece, so that the inspector can With the lower clamp 52 holding it, the workpiece is controlled to move horizontally until the aperture of each spotlight 61 can correspond to the corresponding hole on the workpiece. Since the aperture formed by the spotlight 61 is much larger than the hole on the workpiece, it is convenient to adjust the position of the workpiece. If one of the holes on the workpiece cannot fall within the aperture range of the spotlight 61, it means that the hole position deviation of the workpiece is large. The workpiece can be directly removed from the upper surface of the lower clamp 52 and marked as unqualified. The preliminary detection of the hole position on the workpiece is completed. If the holes on the workpiece can be covered by the corresponding spotlight 61 aperture, the next step of precise detection of the hole spacing will be carried out.

[0034] The detection device will control the extension of the cylinder 12. During the extension of the cylinder 12, the top plate 2 will be driven to move downward. During the downward movement of the top plate 2, the upper clamping seat 4 and the prompt seat 6 on the lower surface will be driven downward. During the downward movement of the upper clamping seat 4, the lower clamping block 52 will be driven downward until the lower surface of the lower clamping block 52 contacts the upper surface of the workpiece, completing the clamping work before the workpiece detection, thereby improving the stability of the workpiece detection. After the workpiece is clamped by the upper clamping block 42 and the lower clamping block 52, the top plate 2 continues to move downward with the extension of the cylinder 12. During the downward movement of the top plate 2, the upper clamping seat 4 will be driven downward. When the upper clamp seat 4 approaches the lower clamp seat 5, the upper clamp block 42 overcomes the upper spring 43 and retracts into the upper clamp groove 41, and the lower clamp block 52 overcomes the lower spring 53 and retracts into the lower clamp groove 51, so that the entire workpiece moves downward during the clamping process, and the workpiece moves close to the bottom plate 1 during the downward movement. The lower surface of the workpiece contacts the detection rod 32 after the workpiece moves downward. As the workpiece moves downward, the hole to be detected on the workpiece moves downward, and the detection rod 32 deviating from the hole to be detected is close to the upper end and overcomes the first spring 34 under the pressure of the workpiece. Retract to the corresponding detection groove 31, and make The corresponding pressure sensor 33 becomes larger, and the detection rod 32 aligned with the hole to be detected on the workpiece will pass through the hole to be detected as the workpiece moves downward, so that the value of the pressure sensor 33 does not change. The pressure sensor 33 will transmit the sensed pressure value to the control system, and the control system will draw the hole position on the workpiece on the electronic screen according to the pressure value, and measure the hole spacing and hole size by itself. If the hole spacing and size meet the specifications, the electronic screen will display qualified. If the hole spacing and size do not meet the specifications, the electronic screen will display qualified. It will display unqualified; after completing the inspection, the inspector will control the cylinder 12 to shorten and drive the top plate 2 to move upward. During the upward movement of the top plate 2, the upper clamp seat 4 will be driven upward. During the upward movement of the upper clamp seat 4, the upper clamp block 42 will be driven upward, thereby reducing the pressure of the upper clamp block 42 squeezing the workpiece, and the upper spring 43 will drive the upper clamp block 42 to extend out of the upper clamp groove 41, and the lower spring 53 will push the lower clamp block 52 to extend out of the lower clamp groove 51, and the lower clamp block 52 will push the workpiece upward. After the upper clamp block 42 moves up and detaches from the workpiece, the inspector removes the workpiece and replaces it with a new workpiece to be inspected, and repeats this process;

[0035] The present invention uses the workpiece to drive the hole to be detected close to the detection rod 32, so that the pressure value display of the pressure sensor 33 at the lower end of the multiple detection rods 32 can be used to quickly determine the hole position and hole spacing of the workpiece, and then quickly complete the detection of the hole spacing and hole size on the workpiece. Compared with the existing detection method, the detection efficiency of automobile parts is greatly improved;

[0036] The present invention aligns the position of the prompt seat 6 with the hole position on the standard workpiece, so that during the placement of the workpiece to be inspected, it can be quickly determined whether the holes on the workpiece are offset according to whether the holes on the workpiece to be inspected fall into the aperture range emitted by the spotlight 61 on the prompt seat 6, thereby quickly realizing a rough judgment of the hole spacing, and then cooperating with the detection of the detection rod 32, so that the hole detection efficiency of automobile accessories is further improved. Example 2

[0037] The prompt seat 6 has the same specifications as the detection seat 3; the upper clamp seat 4 has the same specifications as the lower clamp seat 5; the upper clamp block 42 has the same specifications as the lower clamp block 52; the elastic force of the upper spring 43 is the same as the elastic force of the lower spring 53; an annular groove 62 is provided on the lower surface of the prompt seat 6; an annular sleeve 63 is slidably connected in the annular groove 62; the upper end of the annular sleeve 63 is connected to the bottom of the annular groove 62 by a second spring 64; in the initial state, the length of the annular sleeve 63 extending out of the annular groove 62 is the same as the length of the detection rod 32 extending out of the detection groove 31; in the initial state, the lower end of the upper clamp block 42 is lower than the lower end of the annular sleeve 63; the upper end of the lower clamp block 52 is higher than the upper end of the detection rod 32.

[0038] In this embodiment, the annular sleeve 63 is composed of a plurality of arc sleeves 631 that slide against each other; the upper end of the arc sleeve 631 is connected to the bottom of the annular groove 62 through respective second springs 64 .

[0039] During operation, after the inspector places the workpiece to be inspected on the upper surface of the lower clamping block 52 and adjusts the position of the workpiece according to the aperture emitted by the spotlight 61, the control cylinder 12 is extended to drive the top plate 2 to move downward. During the downward movement of the top plate 2, the upper clamping seat 4 and the prompt seat 6 will be driven downward, and the upper clamping seat 4 will drive the upper clamping block 42 to move downward and contact the upper surface of the workpiece. At this time, the distance from the annular sleeve 63 to the upper surface of the workpiece is equal to the distance from the detection rod 32 to the lower surface of the workpiece. As the top plate 2 continues to move downward, the upper clamping seat 4 will approach the lower clamping seat 5, so that the upper clamping block 42 retracts into the upper clamping groove 41 and the lower clamping block 52 retracts into the lower clamping groove 51, the workpiece will move downward, and the distance from the lower end of the annular sleeve 63 to the upper surface of the workpiece will decrease, and the distance from the upper end of the detection rod 32 to the lower surface of the workpiece will also decrease, until the upper end of the detection rod 32 abuts against the lower surface of the workpiece, and the lower end of the annular sleeve 63 abuts against the upper surface of the workpiece. Since the detection rods 32 can each move along the corresponding detection groove 31, multiple detection rods 32 can The annular sleeve 63 is against the surfaces of workpieces of different shapes. Similarly, the annular sleeve 63 is composed of multiple arc sleeves 631 that slide against each other, so that the annular sleeve 63 can be against the surfaces of workpieces of different shapes, thereby improving the supporting effect of the annular sleeve 63 on the workpiece by the lower end. As the workpiece continues to move downward, the workpiece will be subjected to the upward thrust of the detection rod 32. The detection rod 32 aligned with the hole on the workpiece can pass through the hole on the workpiece, and the detection rod 32 staggered from the hole on the workpiece will give the workpiece an upward reaction force. However, due to the downward supporting force of the annular sleeve 63 on the workpiece by the lower end, the damage to some thinner workpieces during the detection process is reduced, thereby realizing the protection of the workpiece during the detection process and reducing the probability of deformation of the workpiece during detection; after the detection is completed, the top plate 2 will drive the prompt seat 6 and the upper clamping seat 4 to move upward, the annular sleeve 63 will extend out of the annular groove 62 again, the upper clamping block 42 will extend out of the upper clamping groove 41, and after the upper clamping block 42 and the annular sleeve 63 are separated from the workpiece, the workpiece that has been detected will be removed. Example 3

[0040] The lower surface of the top plate 2 and the upper surface of the bottom plate 1 are evenly penetrated with replacement grooves 21 ; the upper end of the prompt seat 6 and the lower end of the detection seat 3 are fixedly connected to a replacement strip 7 ; the replacement strip 7 can be inserted into the replacement groove 21 .

[0041] In this embodiment, the wall of the replacement groove 21 is vertically and evenly provided with card grooves 22; the cross-section of the replacement strip 7 is smaller than the cross-section of the prompt seat 6; the outer side of the replacement strip 7 is vertically and evenly provided with grooves 71; the bottom of the groove 71 is connected through a movable groove 72; a card block 73 is slidably connected in the groove 71; the length of the card block 73 closest to the workpiece to be measured is greater than the length of other card blocks 73; a movable plate 74 is movably connected in the movable groove 72; the movable plate 74 is fixedly connected to multiple card blocks 73; the side of the movable plate 74 facing away from the card block 73 is connected to the wall of the movable groove 72 by a third spring 75; the multiple card blocks 73 can be inserted into multiple card slots 22.

[0042] When working, the detection device is mainly used for batch detection. Each type of workpiece is batched. Before the detection personnel conduct size detection on the workpiece, they first place the standard qualified workpiece on the upper surface of the lower clamping block 52. In order to prevent the workpiece from tilting and affecting the detection accuracy, the flat position of the workpiece is made to contact the upper surface of the lower clamping block 52. After the workpiece is placed, the spotlight 61 is started. The spotlight 61 is illuminated on the upper surface of the workpiece, and the position of the prompt seat 6 is adjusted according to the aperture position illuminated by the spotlight 61. Specifically, the longer card block 73 close to the prompt seat 6 is pressed. When the longer card block 73 is pressed, the corresponding movable plate 74 moves in the movable groove 72 and squeezes the third spring 75. The movement of the movable plate 74 will drive multiple card blocks 73 to retract into the corresponding groove 71. After the multiple card blocks 73 are moved, they will move out of the corresponding card slot 22, thereby unlocking the replacement strip 7 connected to the prompt seat 6, and then the prompt seat 6 is controlled to drive the corresponding replacement The strip 7 moves down and is pulled out of the corresponding replacement slot 21. According to the prompt of the aperture, the prompt seat 6 is controlled to move to the bottom of the corresponding replacement slot 21, and then the prompt seat 6 is controlled to drive the replacement strip 7 to be inserted into the replacement slot 21 above. For some workpiece positions that are tilted upward, the replacement strip 7 connected to the prompt seat 6 is further inserted and moved upward in the corresponding replacement slot 21. For some workpiece positions that are recessed downward, the replacement strip 7 connected to the prompt seat 6 is shallowly inserted in the corresponding replacement slot 21. In this way, the prompt seat 6 cooperates with the annular sleeve 63 to meet the support of workpieces with different undulating shapes. After completing the adjustment of the horizontal and vertical positions of the replacement strip 7 connected to the prompt seat 6, the clamping block 73 close to the prompt seat 6 is released, and the third spring 75 will drive the movable plate 74 to move and reset in the movable slot 72. The movable plate 74 will drive the clamping block 73 to clamp into the clamping slot 22, so as to achieve the locking of the replacement strip 7 connected to the prompt seat 6. In this way, the other prompt seats 6 are adjusted in turn;

[0043] Next, after the standard workpiece is removed from the upper surface of the lower clamping block 52, the position of the detection seat 3 is adjusted according to the aperture position emitted by the spotlight 61, specifically, the block 73 close to the detection seat 3 is pressed. After the longer block 73 is pressed, the movable plate 74 and other blocks 73 will move, so that the replacement strip 7 connected to the detection seat 3 is unlocked, and then the replacement strip 7 connected to the detection seat 3 is controlled to be pulled out of the corresponding replacement groove 21, and the detection seat 3 is moved to just below the aperture, and then the replacement strip 7 connected to the detection seat 3 is controlled to be inserted into the corresponding replacement groove 21. For the workpiece position where the lower surface of the workpiece is recessed, the replacement strip 7 connected to the detection seat 3 is inserted into the replacement groove 21 shallowly, and for the workpiece position where the lower surface of the workpiece is protruding, the replacement strip 7 connected to the detection seat 3 is inserted deeper, and finally the block 73 close to the detection seat 3 is released, so that the replacement strip 7 connected to the detection seat 3 is locked, and then the horizontal and vertical positions of other detection seats 3 are adjusted in turn;

[0044] In this embodiment, the horizontal position of the prompt seat 6 on the top plate 2 and the horizontal position of the detection seat 3 on the bottom plate 1 are adjusted, so that the detection device can detect workpieces with different hole positions and hole numbers, thereby improving the size detection range of automobile parts and improving the practicality of detection; in addition, by adjusting the positions of the prompt seat 6 and the detection seat 3 in the vertical direction, the detection device can detect the hole positions of some undulating workpieces, thereby further expanding the detection range of the detection device. Example 4

[0045] The upper surface of the upper clamp seat 4 and the lower surface of the lower clamp seat 5 are both fixedly connected to the inserting strip 8; a threaded hole 81 is provided at one end of the inserting strip 8 away from the workpiece; the square inserting strip 8 can be inserted into the square replacement groove 21; a bolt 82 is threadedly connected to the threaded hole 81; the tail specification of the bolt 82 is larger than the cross-section of the replacement groove 21.

[0046] During operation, in order to adjust the horizontal positions of the upper clamping seat 4 and the lower clamping seat 5 and change the clamping and supporting positions of the workpiece detection, the upper clamping seat 4 and the top plate 2 are set to be movable, and the lower clamping seat 5 and the bottom plate 1 are also set to be movable. After the insert strip 8 connected to the upper clamping seat 4 is inserted into the replacement groove 21 on the top plate 2, it is fixed with the bolt 82. After the insert strip 8 connected to the lower clamping seat 5 is inserted into the replacement groove 21 on the bottom plate 1, it can also be fixed with the bolt 82. In this way, the upper clamping seat 4 and the lower clamping seat 5 can be replaced and adjusted, and the upper clamping seat 4 and the lower clamping seat 5 can also be added to meet the use requirements.

[0047] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for detecting the dimensions of special-shaped automobile parts, comprising a bottom plate (1) and a top plate (2) directly above the bottom plate (1); the rear side of the bottom plate (1) is fixedly connected to a bracket (11); the upper end of the bracket (11) is connected to the upper surface of the top plate (2) via a cylinder (12); the device is characterized in that: The upper surface of the bottom plate (1) is provided with a plurality of detection seats (3); the positions of the plurality of detection seats (3) correspond to the positions of the holes of the workpiece to be detected; the upper surface of the detection seat (3) is evenly provided with detection grooves (31); the detection grooves (31) are slidably connected to the detection rods (32); a pressure sensor (33) is provided at the bottom of the detection groove (31); the pressure sensor (33) is electrically connected to the control system; the pressure sensor (33) is connected to the lower end of the detection rod (32) through a first spring (34); the outer diameter of the detection rod (32) is smaller than the hole on the workpiece; the center position of the lower surface of the top plate (2) is connected to the upper clamping seat (4); the lower end of the upper clamping seat (4) can contact the workpiece as the top plate (2) moves downward; The center of the upper surface of the bottom plate (1) is connected to a lower clamp seat (5); a lower clamp groove (51) is provided on the upper surface of the lower clamp seat (5); a lower clamp block (52) is slidably connected in the lower clamp groove (51); the lower clamp block (52) is connected to the bottom of the lower clamp groove (51) via a lower spring (53); an upper clamp groove (41) is provided on the lower surface of the upper clamp seat (4); an upper clamp block (42) is slidably connected in the upper clamp groove (41); the bottom of the upper clamp groove (41) is connected to the upper end of the upper clamp block (42) via an upper spring (43); The lower surface of the top plate (2) is provided with a plurality of prompt seats (6); the prompt seats (6) correspond to the detection seats (3) one by one in the vertical direction; a spotlight (61) is provided at the center of the lower surface of the prompt seat (6); the aperture formed by the illumination of the spotlight (61) is larger than the diameter of the hole on the workpiece; the aperture formed by the illumination of the spotlight (61) is smaller than the cross section of the detection seat (3); The lower surface of the top plate (2) and the upper surface of the bottom plate (1) are evenly penetrated with replacement grooves (21); the upper end of the prompt seat (6) and the lower end of the detection seat (3) are fixedly connected to the replacement strip (7); the replacement strip (7) can be inserted into the replacement groove (21).

2. The device for detecting dimensions of special-shaped automobile parts according to claim 1, characterized in that: The specification of the prompt seat (6) is the same as that of the detection seat (3); the specification of the upper clamp seat (4) is the same as that of the lower clamp seat (5); the specification of the upper clamp block (42) is the same as that of the lower clamp block (52); the elastic force of the upper spring (43) is the same as that of the lower spring (53); an annular groove (62) is provided on the lower surface of the prompt seat (6); an annular sleeve (63) is slidably connected in the annular groove (62); the upper end of the annular sleeve (63) is connected to the bottom of the annular groove (62) by a second spring (64); in the initial state, the length of the annular sleeve (63) extending out of the annular groove (62) is the same as the length of the detection rod (32) extending out of the detection groove (31); in the initial state, the lower end of the upper clamp block (42) is lower than the lower end of the annular sleeve (63); the upper end of the lower clamp block (52) is higher than the upper end of the detection rod (32).

3. The device for detecting dimensions of special-shaped automobile parts according to claim 2, characterized in that: The annular sleeve (63) is composed of a plurality of arc-shaped sleeves (631) that slide against each other; the upper end of the arc-shaped sleeve (631) is connected to the bottom of the annular groove (62) through respective second springs (64).

4. The device for detecting dimensions of special-shaped automobile parts according to claim 1, characterized in that: The wall of the replacement groove (21) is evenly and vertically provided with clamping grooves (22); the cross section of the replacement strip (7) is smaller than the cross section of the prompt seat (6); the outer side of the replacement strip (7) is evenly and vertically provided with grooves (71); the bottom of the groove (71) is connected through a movable groove (72); a clamping block (73) is slidably connected in the groove (71); the length of the clamping block (73) closest to the workpiece is greater than the lengths of other clamping blocks (73); a movable plate (74) is movably connected in the movable groove (72); the movable plate (74) is fixedly connected to a plurality of clamping blocks (73); a side of the movable plate (74) facing away from the clamping block (73) is connected to the wall of the movable groove (72) through a third spring (75); and the plurality of clamping blocks (73) can be inserted into a plurality of clamping grooves (22).

5. The device for detecting dimensions of special-shaped automobile parts according to claim 4, characterized in that: The upper surface of the upper clamp seat (4) and the lower surface of the lower clamp seat (5) are both fixedly connected to the inserting strip (8); a threaded hole (81) is provided at one end of the inserting strip (8) away from the workpiece; the square inserting strip (8) can be inserted into the square replacement groove (21); and a bolt (82) is threadedly connected to the inner thread of the threaded hole (81).

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