Clamp, marking device and technology for filter shell

Abstract

The invention belongs to the technical field of filter shell machining equipment, and particularly relates to a clamp, a marking device and a technology for a filter shell. The clamp comprises a pair of clamping jaws and a mounting seat, the pair of clamping jaws is movably connected to the mounting seat, and the clamp further comprises a push rod arranged on the mounting seat and capable of moving in the axial direction of the mounting seat; the guide mechanism is arranged between the clamping jaw and the mounting seat, and the guide mechanism is used for guiding the clamping jaw to move in the direction perpendicular to the axis of the push rod; the linkage mechanism is connected with the push rod and the clamping jaw, and when the push rod moves along the axis of the push rod, the linkage mechanism drives the clamping jaw to move; and the elastic piece acts on the push rod, so that the pair of clamping jaws is kept in an open state. After the filter shell is clamped by the clamp, pretightening force is achieved, and the clamping effect is good; the marking device can mark the first end face, the second end face and the third end face of the filter shell at the first position, the third position and the third position correspondingly.

Description

Technical Field

[0001] The invention belongs to the technical field of filter housing processing equipment, and in particular relates to a clamp, a marking device and a process for a filter housing. Background Art

[0002] When producing the outer shell of the filter, it is necessary to mark the specific model, manufacturer, production batch number, patent and other information of the filter. In the prior art, a laser marking machine is usually used to mark the outer shell of the filter; a laser marking machine is a device that uses a laser beam to mark and engrave a target object, and is an application of laser processing technology.

[0003] For example, the patent with application number: CN202310677879.2 discloses a filter housing laser marking machine and marking method to solve the problem that the existing marking device cannot utilize the rotation of the conveying roller to make the device intermittently feed and follow-up marking, and cannot efficiently process flue gas. It includes a support seat, a conveyor belt is installed above the support seat, a roller is installed inside the conveyor belt, the roller and the support seat are rotatably connected, a cam is fixedly connected to the front end of the roller, a toggle assembly is installed below the cam, a toggle rod is installed on the right side of the toggle assembly, a connecting plate is fixedly installed on the rear side of the support seat, a connecting seat is fixedly connected to the top of the connecting plate, and a mounting plate is installed at the front end of the connecting seat.

[0004] The patent with application number: CN202021783182.1 discloses a shell coding device for a network filter, including a workbench, the top outer wall of the workbench is fixed with a coding raw material storage box by bolts, the bottom outer wall of the coding raw material storage box is fixed with a mounting plate by bolts, the bottom outer wall of the mounting plate is fixed with a coding device by bolts, and both sides of the bottom outer wall of the mounting plate are fixed with equidistantly distributed telescopic springs by bolts, the bottom outer wall of the telescopic spring is fixed with a clamping plate by bolts, the outer wall of one side of the coding raw material storage box is fixed with an air storage box by bolts, and the top outer wall of the air storage box is fixed with an air suction pump by bolts.

[0005] However, both of the above patents can only mark one end face of the filter housing. In fact, due to the small size of the filter housing, the information that can be recorded on one end face is limited. Therefore, when the manufacturer needs to mark more information, one end face of the filter housing cannot meet the demand. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a clamp, a marking device and a process for a filter housing, by means of which marking can be performed on multiple end faces of the filter housing.

[0007] The technical solution proposed by the present invention is as follows:

[0008] In a first aspect, the present invention provides a fixture for a filter housing, including a jaw and a mounting seat. The number of jaws is a pair, and the pair of jaws is movably connected to the mounting seat. It further includes:

[0009] A push rod, which is arranged on the mounting seat and can move along its axial direction;

[0010] A guiding mechanism, which is arranged between the jaw and the mounting seat and is used to guide the jaw to move in a direction perpendicular to the axis of the push rod;

[0011] A linkage mechanism, which connects the push rod and the jaw. When the push rod moves along its axis, the jaw is driven to move through the linkage mechanism;

[0012] An elastic member, which acts on the push rod to keep the pair of jaws in an open state.

[0013] Optionally, the linkage mechanism includes:

[0014] Link rods, the number of link rods is multiple, and the lengths of the multiple link rods are equal. The two ends of the link rod are respectively hinged to the jaw and the push rod;

[0015] The guiding mechanism includes:

[0016] A guiding column, which is fixedly arranged on the mounting seat;

[0017] A guiding groove, which is arranged on the jaw. The length direction of the guiding groove is perpendicular to the axis direction of the push rod, and the guiding column can slide in the guiding groove.

[0018] In a second aspect, the present invention provides a marking device, including the above-mentioned fixture. The marking device includes:

[0019] A mounting frame, on which a workbench is arranged;

[0020] A turntable, which is rotatably mounted on the workbench through a bracket. The rotation axis of the turntable is parallel to the workbench, and at least one fixture is arranged on the outer peripheral wall of the turntable;

[0021] A feeding mechanism, which feeds the filter housing to be marked to the fixture;

[0022] A spacing adjusting mechanism, which is used to adjust the spacing between a pair of jaws.

[0023] Optionally, the spacing adjusting mechanism includes:

[0024] A trigger plate, which is fixedly arranged on the outer wall of the push rod;

[0025] The pushing plate pushes the triggering plate to move axially along the push rod, causing a pair of clamping jaws to approach each other;

[0026] The first power source provides power for the movement of the pushing plate.

[0027] Optionally, the feeding mechanism includes:

[0028] The moving plate is slidably connected to the workbench. There is a convex platform on the moving plate, and an installation groove is provided on the convex platform. The moving plate has a first stop position and a second stop position. When the moving plate is at the second stop position, it corresponds to the fixture;

[0029] The second power source provides power for the movement of the moving plate;

[0030] The bottom support is slidably installed in the installation groove. There is a receiving cavity on the bottom support, and the filter housing to be marked is placed in the receiving cavity;

[0031] The bottom support has a first stopping position and a second stopping position. When the bottom support is at the first stopping position, the bottom support is hidden in the installation groove. When the bottom support is at the second stopping position, a pair of clamping jaws are inserted into the filter housing to be marked;

[0032] The third power source provides power for the movement of the bottom support.

[0033] Optionally, the feeding mechanism further includes:

[0034] The storage cylinder is a hollow pipe fitting with openings at both ends. The storage cylinder is fixed to the workbench by a plate. When the moving plate is at the first stop position, the material in the storage cylinder can fall into the receiving cavity;

[0035] When the moving plate moves from the first stop position to the second stop position, the convex platform closes the storage cylinder.

[0036] Thirdly, the present invention provides a marking process for a filter housing, using the above-mentioned marking device, which is characterized by including the following steps:

[0037] Step 1: The turntable stops rotating. The fixture at the first position is adjusted through the spacing adjustment mechanism, so that the spacing between a pair of clamping jaws of the fixture is reduced and can be inserted into the cavity of the filter housing;

[0038] Step 2: The feeding mechanism conveys the filter housing to be detected to the fixture at the first position, and a pair of clamping jaws are inserted into the cavity of the filter housing. The spacing adjustment mechanism is started, so that a pair of clamping jaws clamp the filter housing;

[0039] Step 3: The turntable rotates, so that the fixture rotates to the second position, and the first end face of the filter housing clamped by the fixture is marked by the marker;

[0040] Step 4: The turntable rotates again, causing the fixture to rotate to the first position. The distance between a pair of jaws of the fixture is reduced through the spacing adjustment mechanism, and the marked filter housing is disengaged from the fixture.

[0041] Optionally, the first position is located directly below the turntable, and the second position is located directly above the turntable.

[0042] Optionally, there is also step S1 between step 2 and step 3: The turntable rotates, causing the fixture to rotate to the third position, and the second end face of the filter housing clamped by the fixture is marked by the marking device.

[0043] There is also step S2 between step 3 and step 4: The turntable rotates, causing the fixture to rotate to the fourth position, and the third end face of the filter housing clamped by the fixture is marked by the marking device.

[0044] Optionally, the third position and the fourth position are respectively located on both sides of the turntable, and the connection line between the third position and the fourth position is parallel to the workbench.

[0045] Compared with the prior art, the beneficial effects of the present invention are:

[0046] The fixture of the present invention can clamp and fix the filter housing through a pair of jaws in cooperation with the linkage mechanism and the guiding mechanism, and through the action of the elastic member, it can have a pre-tightening force after clamping the filter housing, and the clamping effect is good.

[0047] In the marking device of the present invention, since the rotation axis of the turntable is parallel to the workbench, when the turntable drives the fixture to rotate, the first end face, the second end face, and the third end face of the filter housing can be marked at the first position, the third position, and the third position respectively. Description of the Drawings

[0048] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention.

[0049] Figure 1 is a perspective view of the present invention;

[0050] Figure 2 is a front view of the present invention;

[0051] Figure 3 is of the present invention Figure 1 sectional view;

[0052] Figure 4 is of the present invention Figure 3 enlarged view of area A;

[0053] Figure 5 is a perspective view of the moving plate of the present invention;

[0054] Figure 6 is the bottom view of the present invention Figure 5 ;

[0055] Figure 7 is the perspective view of the base of the present invention

[0056] Figure 8 is the perspective view of the pitch adjustment mechanism of the present invention

[0057] Figure 9 is the schematic view of the filter housing of the present invention

[0058] Figure 10 is the perspective view of the fixture of the present invention

[0059] Figure 11 is the cross-sectional view of the fixture of the present invention

[0060] Figure 12 is the perspective view of the jaw, push rod and linkage mechanism of the present invention

[0061] Figure 13 is the perspective view of the mounting base of the present invention

[0062] In the figure: 1. Fixture; 11. Jaw; 12. Mounting base; 13. Push rod; 14. Guide mechanism; 15. Linkage mechanism; 16. Elastic member; 121. Through groove; 122. Through hole; 123. Protective plate; 131. First rod; 132. Second rod; 133. Limiting plate; 134. Connecting plate; 141. Guide post; 142. Guide groove; 151. Link;

[0063] 2. Marking device; 21. Mounting frame; 22. Workbench; 23. Turntable; 24. Feeding mechanism; 25. Pitch adjustment mechanism; 26. Equipment installation chamber; 27. Top plate; 221. Blanking groove; 222. Support frame; 241. Moving plate; 242. Boss; 243. Installation groove; 244. Second power source; 245. Base; 246. Accommodation chamber; 247. Third power source; 248. Stock bin; 251. Trigger plate; 252. Thrust plate; 253. First power source; 2521. Guide surface; 2522. Slot;

[0064] 3. Filter housing; 31. First end face; 32. Second end face; 33. Third end face. Detailed implementation manners

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0067] Embodiment 1

[0068] Please refer to Figures 1-13 , the marking device 2 of the present invention has a mounting frame 21. A workbench 22 is provided in the middle of the mounting frame 21. A blanking groove 221 is provided in the middle of the workbench 22. A top plate 27 is provided at the top of the mounting frame 21. The top plate 27 and the workbench 22 are arranged in parallel. An equipment installation chamber 26 is formed between the top plate 27 and the workbench 22. A bracket is provided on the workbench 22. The bracket includes two symmetrically arranged front and rear support frames 222. The top of the bracket is rotatably connected with a turntable 23. The rotation axis of the turntable 23 is arranged in the front-rear direction. The bracket and the turntable 23 are both located in the equipment installation chamber 26.

[0069] It should be noted that at least one marking device is fixedly provided on the top plate 27 of the mounting frame 21. When the filter housing 3 is vertically opposite to the marking device, the marking device marks the filter housing 3.

[0070] Those skilled in the art can understand that the marking device is a prior art, and the marking device of the present invention is preferably a laser marking machine.

[0071] It should be noted that the marking device of the present invention can also select a pad printer or an inkjet printer; when in use, a pad printer or an inkjet printer is respectively arranged at the second position, the third position, and the fourth position.

[0072] A plurality of jigs 1 are provided on the outer peripheral wall of the turntable 23. The jigs 1 have four positions on the turntable 23 where they can stop, namely the first position at the lowest point of the turntable 23, the second position at the highest point of the turntable 23, the third position at the leftmost side of the turntable 23, and the fourth position at the rightmost side of the turntable 23.

[0073] Reference Figure 2 During use, the turntable 23 feeds and discharges materials at the first position; after rotating 90 degrees clockwise, it marks the second end face 32 of the filter housing 3 at the third position; further, after continuing to rotate 90 degrees clockwise, it marks the first end face 31 of the filter housing 3 at the second position; furthermore, after continuing to rotate 90 degrees clockwise, it marks the third end face 33 of the filter housing 3 at the fourth position.

[0074] It should be noted that referring to,9, the first end face 31 of the filter housing 3 is arranged opposite to the open end of the filter housing 3, and the second end face 32 and the third end face 33 are located on both sides of the filter housing 3 and are perpendicular to the first end face 31.

[0075] With this solution, by rotating the vertically arranged turntable 23, the first end face 31 of the filter housing 3 is vertically upward at the second position, the second end face 32 of the filter housing 3 is vertically upward at the third position, and the third end face 33 of the filter housing 3 is vertically upward at the fourth position; then, by the marking devices opposite to the second position, the third position, and the fourth position, the first end face 31, the second end face 32, and the third end face 33 are marked, so that the marking process of the three end faces can be completed by this device at one time, and the processing efficiency is high.

[0076] It should also be noted that when the laser marking machine marks the filter housing 3, since the end faces to be marked on the filter housing 3 are all flat surfaces, when the laser beam of the laser marking machine is perpendicular to the material surface, characters or patterns can be engraved more evenly, and the best marking effect can be obtained; in addition, during installation, the marking device is fixedly installed on the lower end face of the top plate 27, which is convenient for installation and facilitates adjusting the angle of the laser beam of the marking device so that the laser beam is emitted from top to bottom.

[0077] In this solution, the number of jigs 1 on the turntable 23 is preferably four, and the angle of each rotation of the turntable 23 is preferably 90 degrees.

[0078] It should be noted that the number of jigs 1 on the turntable 23 can also be set to 4n (n is a natural number), and correspondingly, the angle of each rotation of the turntable 23 is 360 / 4n.

[0079] It should be noted that the present invention can also be adjusted according to requirements. For example, when only printing on the first end face 31 is required, the jig 1 feeds and discharges materials at the first position, completes printing at the second position, and the marking devices at the third position and the fourth position stop working.

[0080] It should be noted that in this solution, the rotation of the turntable 23 can be realized by means of a stepping motor, a servo motor, a cam divider, etc., to ensure that the angle of each rotation of the turntable 23 is a preset value (in the present invention, the central angle corresponding to one rotation of the turntable 23 is preferably 90 degrees).

[0081] Example 2

[0082] Taking the fixture 1 located at the first position as an example, the fixture 1 of the present invention will be described in detail.

[0083] The fixture 1 has a mounting base 12. The middle of the mounting base 12 has a through groove 121. The through groove 121 extends out of both ends of the mounting base 12 in the front-rear direction. The upper end of the mounting base 12 is fixedly installed on the turntable 23. A through hole 122 is provided on the lower end surface of the mounting base 12. A guard plate 123 is provided on the lower end surface of the mounting base 12. The guard plates 123 are arranged in pairs in the front-rear direction. There are two pairs of guard plates 123, and the two pairs of guard plates 123 are symmetrically arranged on the bottom surface of the mounting base 12 in the left-right direction; a push rod 13 is slidably connected in the through hole 122. The push rod 13 extends upward into the through groove 121. A trigger plate 251 is provided at the top of the push rod 13. The trigger plate 251 is located in the through groove 121; the push rod 13 includes a first rod 131, a second rod 132, a limiting plate 133, and a connecting plate 134 arranged in sequence from top to bottom. The diameter of the first rod 131 is larger than the diameter of the through hole 122, and the second rod 132 can slide up and down in the through hole 122.

[0084] The fixture 1 further has an elastic member 16. The elastic member 16 is preferably a flat wire spring or a disc spring. The elastic member 16 is sleeved on the outer wall of the second rod 132. The upper end of the elastic member 16 abuts against the bottom surface of the mounting base 12, and the lower end of the elastic member 16 abuts against the connecting plate 134; the elastic member 16 acts on the limiting plate 133, so that the first rod 131 of the push rod 13 fits against the bottom surface of the mounting groove 243. At this time, a pair of clamping jaws 11 has the largest gap.

[0085] The fixture 1 further has a pair of clamping jaws 11 arranged symmetrically left and right. The pair of clamping jaws 11 are symmetrically arranged below the mounting base 12 in the left-right direction. Specifically, the left clamping jaw 11 is located between the left pair of guard plates 123, and the right clamping jaw 11 is located between the right pair of guard plates 123.

[0086] The fixture 1 further has a guiding mechanism 14. The guiding mechanism 14 of the present invention adopts a guiding column 141 and a guiding groove 142. The guiding groove 142 is arranged in the left-right direction on the clamping jaw 11. The guiding column 141 is fixedly arranged between the pair of guard plates 123. The guiding column 141 is located in the guiding groove 142 and can slide left and right in the guiding groove 142.

[0087] It should be noted that the guiding mechanism 14 can also be implemented by other solutions, such as using a guide rail and a slider.

[0088] The fixture 1 further has a linkage mechanism 15. The linkage mechanism 15 includes a connecting rod 151. One end of the connecting rod 151 is rotatably connected to the clamping jaw 11, and the other end of the connecting rod 151 is rotatably connected to the connecting plate 134.

[0089] It should be noted that the linkage mechanism 15 of the present invention is provided with two groups that are symmetric left and right. One group of the linkage mechanism 15 on the left is connected to the jaw 11 on the left, and the linkage mechanism 15 on the right is connected to the jaw 11 on the right.

[0090] As a further solution, the number of connecting rods 151 of the linkage mechanism 15 is multiple (preferably two), and the lengths of the multiple connecting rods 151 are equal (the length here refers to the distance from the hinge point of the connecting rod 151 and the jaw 11 to the hinge point of the connecting rod 151 and the connecting plate 134). Through the cooperation of the multiple connecting rods 151 and the guiding mechanism 14, when the push rod 13 moves up and down, it can ensure that a pair of jaws 11 move relative to each other in the horizontal direction.

[0091] It should be noted that by using the fixture of the present invention, it can be applicable to filter housings within a certain size range.

[0092] Embodiment 3

[0093] Describe in detail how to achieve automatic loading and unloading when the present invention is in the first position.

[0094] The spacing adjustment mechanism 25 includes a trigger plate 251, a push plate 252, and a first power source 253; wherein, the first power source 253 provides power for the movement of the push plate 252; the trigger plate 251 is a plate member fixedly arranged on the push rod 13, and the push plate 252 has an inclined guiding surface 2521.

[0095] The working principle of unloading is as follows: The first power source 253 pushes the push plate 252 to move, so that the guiding surface 2521 of the push plate 252 acts on the trigger plate 251, pushing the trigger plate 251 to move upward, thereby driving the push rod 13 to move towards the turntable 23, and further driving a pair of jaws 11 to approach each other; the filter housing 3 sleeved outside a pair of jaws 11 falls off and drops into the blanking groove 221.

[0096] It should be noted that the guiding surface 2521 can be selected as an inclined surface or a curved surface.

[0097] As a further solution, the push plate 252 of this solution moves in the front-rear direction, and the guiding surface 2521 is arranged on the upper side of the front end surface of the push plate 252.

[0098] As a further solution, a slot 2522 is arranged in the middle of the front end surface of the push plate 252. The diameter of the first rod 131 is smaller than the width of the slot 2522. After the push plate 252 is inserted into the through slot 121, the first rod 131 can be inserted into the slot 2522, so that both the left and right sides of the trigger plate 251 can be in contact with the guiding surface 2521, and the force on the push plate 252 is more uniform.

[0099] The feeding mechanism 24 includes a moving plate 241 and a second power source 244. The second power source 244 provides power for the movement of the moving plate 241. The moving plate 241 is slidably mounted on the workbench 22. A boss 242 is provided on the upper end surface of the moving plate 241. The boss 242 extends in the front-rear direction. An installation groove 243 is provided on the upper end surface of the boss 242. A connection hole is provided on the bottom surface of the installation groove 243. A bottom support 245 is provided in the installation groove 243. A receiving cavity 246 is provided on the bottom support 245. The filter housing 3 to be marked is placed in the receiving cavity 246. A third power source 247 is provided on the bottom surface of the moving plate 241. The output end of the third power source 247 is inserted into the connection hole and fixedly connected to the bottom support 245.

[0100] It should be noted that in this solution, the moving plate 241 moves in the front-rear direction. In order to limit the moving direction of the moving plate 241, a pair of guide rails are symmetrically arranged on the left and right. A single guide rail is arranged in the front-rear direction. A plurality of sliders are fixed on the lower end surface of the moving plate 241. By the cooperation of the sliders and the pair of guide rails, the moving direction of the moving plate 241 is limited.

[0101] When the second power source 244 is not working, the moving plate 241 is located at the first stop position. The position when the second power source 244 pushes the moving plate 241 to the maximum stroke is the second stop position (here, it can also be set as an intermediate position where the second power source 244 can stop. When the second stop position adopts the maximum stroke of the second power source 244, due to the reasons of the second power source 244 itself, the moving plate 241 may not be able to reach the second stop position). When the moving plate 241 moves to the second stop position, the clamp 1 at the first position corresponds to the receiving cavity 246 up and down.

[0102] When the third power source 247 is not working, the bottom support 245 is located at the first stop position. At this time, the bottom support 245 is completely retracted in the installation groove 243. When the third power source 247 pushes the bottom support 245 to move upward to the second stop position, a pair of clamping jaws 11 of the clamp 1 at the first position can be inserted into the receiving cavity 246.

[0103] The working principle of loading is as follows: after unloading is completed, the push plate 252 remains in place, so that a pair of jaws 11 can be inserted into the cavity of the filter housing 3; the movable plate 241 moves to the second stop position driven by the second power source 244, and then the third power source 247 pushes the bottom support 245 to move upward to the second stop position. At this time, the pair of jaws 11 are located in the cavity of the filter housing 3, and the first power source 253 is started again, driving the push plate 252 to move backward, and the state where the trigger plate 251 is pushed is released. In order to return to the initial state, the elastic member 16 will push the limit plate 133 to move downward, so that the pair of jaws 11 are away from each other, thereby clamping the filter housing 3; after the filter housing 3 is clamped, the third power source 247 is started again, so that the bottom support 245 returns to the first stop position. At this time, the filter housing 3 is fixed on the fixture 1, and loading is completed.

[0104] As a further solution, a material storage barrel 248 is also provided on the workbench 22. The material storage barrel 248 is arranged in the vertical direction. The material storage barrel 248 is a hollow structure. The filter housing 3 matches the space inside the material storage barrel 248, so that multiple filter housings 3 can be stacked in the vertical direction without flipping.

[0105] It should be noted that the first end surface 31 of the filter housing 3 in the material storage barrel 248 is arranged downward to ensure that the clamping claw can be inserted into the cavity of the filter housing 3 when loading.

[0106] When the movable plate 241 is located at the first stop position, the filter housing 3 in the storage barrel 248 can fall into the accommodating chamber 246 (the accommodating chamber 246 can only accommodate one filter housing 3). After the movable plate 241 moves out of the first stop position, the upper surface of the boss 242 can close the storage barrel 248 to prevent the filter housing 3 in the storage barrel 248 from falling, thereby achieving material replenishment.

[0107] It should be noted that the first power source 253, the second power source 244 and the third power source 247 in this solution can be any one of a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

[0108] Example 4

[0109] A marking process is disclosed, which uses the fixture 1 and the marking device 2 of the above embodiment. Using the process of this embodiment, the first end surface 31 of the filter housing 3 can be marked, and the following steps are specifically used:

[0110] Step 1: the rotating disk 23 stops rotating, and the distance adjustment mechanism 25 is used to adjust the clamp 1 at the first position, so that the distance between the pair of clamping jaws 11 of the clamp 1 is reduced, so that the pair of clamping jaws 11 can be inserted into the cavity of the filter housing 3;

[0111] Step 2: The feeding mechanism 24 conveys the filter housing 3 to be detected to the fixture 1 at the first position, and inserts a pair of clamping jaws 11 into the cavity of the filter housing 3. Then start the spacing adjustment mechanism 25 to clamp the filter housing 3 with the pair of clamping jaws 11.

[0112] Step 3: The turntable 23 rotates to make the fixture 1 rotate to the second position, and the first end face 31 of the filter housing 3 clamped by the fixture 1 is marked by the marking device.

[0113] Step 4: The turntable 23 rotates again to make the fixture 1 rotate to the first position. The spacing between the pair of clamping jaws 11 of the fixture 1 is reduced by the spacing adjustment mechanism 25, and the marked filter housing 3 is disengaged from the fixture 1.

[0114] It should be noted that the minimum number of fixtures in this embodiment can be set to two. When two fixtures are set, the rotation angle of the turntable each time is 180 degrees.

[0115] Embodiment 5

[0116] Disclose a marking process, which uses the fixture 1 and the marking device 2 of the above embodiment. Using the process of this embodiment, the first end face 31, the second end face 32, and the third end face 33 of the filter housing 3 can be marked in sequence. The specific process steps are as follows:

[0117] Step 1: The turntable 23 stops rotating. The fixture 1 at the first position is adjusted by the spacing adjustment mechanism 25 to reduce the spacing between the pair of clamping jaws 11 of the fixture 1 so that they can be inserted into the cavity of the filter housing 3.

[0118] Step 2: The feeding mechanism 24 conveys the filter housing 3 to be detected to the fixture 1 at the first position, and inserts a pair of clamping jaws 11 into the cavity of the filter housing 3. Then start the spacing adjustment mechanism 25 to clamp the filter housing 3 with the pair of clamping jaws 11.

[0119] Step S1: The turntable 23 rotates to make the fixture 1 rotate to the third position, and the second end face 32 of the filter housing 3 clamped by the fixture 1 is marked by the marking device.

[0120] Step 3: The turntable 23 rotates to make the fixture 1 rotate to the second position, and the first end face 31 of the filter housing 3 clamped by the fixture 1 is marked by the marking device.

[0121] Step S2: The turntable 23 rotates to make the fixture 1 rotate to the fourth position, and the third end face 33 of the filter housing 3 clamped by the fixture 1 is marked by the marking device.

[0122] Step 4: The turntable 23 rotates again to make the fixture 1 rotate to the first position. The distance between a pair of jaws 11 of the fixture 1 is reduced through the spacing adjustment mechanism 25, and the marked filter housing 3 is detached from the fixture 1.

[0123] It should be noted that in this embodiment

[0124] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamp for a filter housing, comprising a clamping jaw (11) and a mounting seat (12), wherein the number of the clamping jaws (11) is a pair, and the pair of clamping jaws (11) is movably connected to the mounting seat (12), characterized in that: Also includes: A push rod (13), the push rod (13) is arranged on the mounting seat (12), and the push rod (13) can move along the axial direction thereof; A guide mechanism (14), the guide mechanism (14) is arranged between the clamping jaw (11) and the mounting seat (12), and the guide mechanism (14) is used to guide the clamping jaw (11) to move in a direction perpendicular to the axis of the push rod (13); A linkage mechanism (15), wherein the linkage mechanism (15) connects the push rod (13) and the clamping claw (11), and when the push rod (13) moves along its axis, the clamping claw (11) is driven to move through the linkage mechanism (15); An elastic member (16) acts on the push rod (13) to keep the pair of clamping jaws (11) in an open state.

2. The clamp according to claim 1, characterized in that: The linkage mechanism (15) comprises: A connecting rod (151), wherein the number of the connecting rods (151) is multiple, and the lengths of the multiple connecting rods (151) are equal, and the two ends of the connecting rod (151) are respectively hinged to the clamping claw (11) and the push rod (13); The guiding mechanism (14) comprises: A guide column (141), wherein the guide column (141) is fixedly arranged on the mounting seat (12); The guide groove (142) is arranged on the clamping claw (11), the length direction of the guide groove (142) is perpendicular to the axial direction of the push rod (13), and the guide column (141) can slide in the guide groove (142).

3. A marking device, comprising the fixture according to claim 1 or 2, characterized in that: The marking device includes: A mounting frame (21), wherein a workbench (22) is arranged on the mounting frame (21); A turntable (23), the turntable (23) is rotatably mounted on the workbench (22) via a bracket, the rotation axis of the turntable (23) is parallel to the workbench (22), and at least one fixture (1) is provided on the outer peripheral wall of the turntable (23); A feeding mechanism (24), the feeding mechanism (24) conveys the filter housing (3) to be marked to the fixture (1); The spacing adjustment mechanism (25) is used to adjust the spacing between a pair of clamping jaws (11).

4. The marking device according to claim 3, characterized in that: The spacing adjustment mechanism (25) comprises: A trigger plate (251), the trigger plate (251) is fixedly arranged on the outer wall of the push rod (13); A push plate (252), the push plate (252) pushes the trigger plate (251) to move in the axial direction of the push rod (13), so that the pair of clamping claws (11) are close to each other; A first power source (253), the first power source (253) provides power for the push plate (252) to move.

5. The marking device according to claim 4, characterized in that: The feeding mechanism (24) comprises: A movable plate (241), the movable plate (241) is slidably connected to the workbench (22), a boss (242) is provided on the movable plate (241), a mounting groove (243) is provided on the boss (242), the movable plate (241) has a first stop position and a second stop position, and when the movable plate (241) is located at the second stop position, it corresponds to the fixture (1); A second power source (244), the second power source (244) provides power for the moving plate (241) to move; A base (245), the base (245) is slidably mounted in the mounting groove (243), a receiving cavity (246) is provided on the base (245), and the filter housing (3) to be marked is placed in the receiving cavity (246); The base (245) has a first stop position and a second stop position. When the base (245) is located at the first stop position, the base (245) is hidden in the mounting groove (243). When the base (245) is located at the second stop position, the pair of clamping jaws (11) can be inserted into the filter housing (3) to be marked. The third power source (247) provides power for the movement of the base support (245).

6. The marking device according to claim 5, characterized in that: The feeding mechanism (24) further comprises: A material storage barrel (248), which is a hollow tube with openings at both ends. The material storage barrel (248) is fixed on the workbench (22) through a plate. When the movable plate (241) is located at the first stop position, the material in the material storage barrel (248) can fall into the accommodating chamber (246); When the movable plate (241) moves from the first stop position to the second stop position, the boss (242) closes the material storage barrel (248).

7. A marking process for a filter housing, using the marking device according to any one of claims 3 to 6, characterized in that: The steps include: Step 1: The turntable stops rotating, and the clamp at the first position is adjusted by the spacing adjustment mechanism so that the spacing between a pair of clamping claws of the clamp is reduced and can be inserted into the cavity of the filter housing; Step 2: The feeding mechanism transports the filter housing to be tested to the fixture at the first position, and inserts a pair of clamps into the cavity of the filter housing, and starts the spacing adjustment mechanism so that the pair of clamps clamps the filter housing; Step 3: The turntable rotates to rotate the fixture to the second position, and a marker is used to mark the first end surface of the filter housing held by the fixture; Step 4: The turntable rotates again, causing the fixture to rotate to the first position, and the distance between a pair of jaws of the fixture is reduced through the distance adjustment mechanism, and the marked filter housing is detached from the fixture.

8. The marking process according to claim 7, characterized in that: The first position is located directly below the turntable, and the second position is located directly above the turntable.

9. The marking process according to claim 8, characterized in that: There is also a step S1 between step 2 and step 3, wherein the turntable rotates so that the fixture rotates to a third position, and a marker is used to mark the second end surface of the filter housing clamped by the fixture; There is also a step S2 between step three and step four, in which the turntable rotates to rotate the clamp to a fourth position, and a marker is used to mark the third end face of the filter housing clamped by the clamp.

10. The marking process according to claim 9, characterized in that: The third position and the fourth position are respectively located on both sides of the turntable, and a line connecting the third position and the fourth position is parallel to the workbench.

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