Cushion block mechanism and punching equipment

Abstract

The utility model discloses a cushion block mechanism and punching equipment. The cushion block mechanism comprises a positioning piece, a gasket and a push rod assembly. The positioning piece comprises a positioning groove, a guide part is arranged in the positioning groove, and the guide part extends in the first direction. The gasket is arranged on one side of the positioning piece and provided with a sliding block, and the sliding block is connected to the guiding part in a sliding mode. The push rod assembly is connected to the positioning piece and comprises a cam and an abutting piece, the abutting piece can move relative to the positioning piece in the first direction, one end of the abutting piece abuts against the peripheral face of the cam, the other end of the abutting piece is located in the positioning groove, and the cam can rotate relative to the positioning piece, so that the peripheral face pushes the sliding block to move out of the positioning groove along the guide part by abutting against the abutting piece. Through rotation of the cam, the other end of the abutting piece pushes the sliding block to move out of the positioning groove along the guiding part, so that connection between the gasket and the positioning piece is canceled, the gasket installed on the positioning piece is disassembled, the automation degree is high, and the replacement efficiency of the gasket is improved by improving the disassembling efficiency of the gasket.

Description

Technical Field

[0001] This application belongs to the field of drilling equipment technology, and specifically relates to a pad block mechanism and a drilling device. Background Technology

[0002] When drilling holes in a product, a gasket is often placed underneath the product to prevent burrs from forming during drilling. These gaskets are typically for single use only. After drilling a hole in a product, workers need to manually remove the used gasket and replace it with a new one. However, manually replacing gaskets is labor-intensive and inefficient. Utility Model Content

[0003] In view of this, it is necessary to provide a pad mechanism to improve the problem of low efficiency in existing manual pad replacement technology.

[0004] An embodiment of this application provides a pad mechanism, including a positioning member, a pad, and a push rod assembly. The positioning member includes a positioning groove, and a guide portion is provided within the positioning groove, extending along a first direction. The pad is disposed on one side of the positioning member, and the pad has a slider, which is slidably connected to the guide portion. The push rod assembly is connected to the positioning member, and the push rod assembly includes a cam and a pushing member. The pushing member is movable relative to the positioning member along the first direction. One end of the pushing member abuts against the outer peripheral surface of the cam, and the other end of the pushing member is located within the positioning groove. The cam is rotatable relative to the positioning member, causing the outer peripheral surface to push the slider along the guide portion out of the positioning groove via the pushing member.

[0005] In the aforementioned pad mechanism, a guide is connected to a slider to position the pad on one side of the positioning groove. The push rod assembly rotates relative to the positioning member via a cam, causing the outer circumferential surface of the cam to push the push member along a first direction through one end of the push member. The other end of the push member pushes the slider out of the positioning groove along the guide, thereby disconnecting the pad from the positioning member and disassembling the pad installed on the positioning member. This mechanism is highly automated and improves the pad replacement efficiency by increasing the pad disassembly efficiency.

[0006] In some embodiments, the pushing member includes a push block, a push rod, and an elastic member. The push block is movably disposed in the positioning groove and contacts the slider. The push rod pushes against the outer peripheral surface and is connected to the push block, so that the rotation of the cam can drive the push rod to move, thereby pushing the push block to move in the positioning groove. The elastic member is connected to the positioning member and the push rod respectively, and is used to elastically deform when the push rod moves.

[0007] In some embodiments, the push rod is provided with a receiving groove for accommodating an elastic member, and the positioning member is provided with a protrusion on the side facing the push rod assembly, with the elastic member abutting against the protrusion and the side of the receiving groove away from the push rod, respectively.

[0008] In some embodiments, the guide portion includes two slide grooves disposed on the two side walls of the positioning groove. Each slide groove includes a first stop surface and a second stop surface that are perpendicular to each other. The slider includes two hooks that are spaced apart and connected to the pad. Each hook is slidably connected to one slide groove, so that the two first stop surfaces stop the slider to move along the spacing direction of the two hooks, and the second stop surface stops the slider to move away from the positioning member. The spacing direction of the two hooks is perpendicular to the first direction.

[0009] In some embodiments, the cam includes a hub and gear teeth. The hub is disc-shaped and rotatably connected to the positioning member via a rotating shaft. The gear teeth are located on the outer periphery of the hub, and the side of the gear teeth facing away from the rotating shaft is the outer peripheral surface. The rotation direction of the hub is defined as the circumferential direction. In one gear tooth, the distance between the outer peripheral surface and the rotating shaft gradually decreases along the circumferential direction, so that the outer peripheral surface pushes the pushing member to move along the first direction when the hub rotates along the circumferential direction.

[0010] In some embodiments, the cam includes a plurality of teeth spaced apart on the outer periphery of the hub, the push rod assembly includes a plurality of pushers, the portion of the outer periphery surface corresponding to each tooth is used to abut one end of a pusher, and the positioning member includes a plurality of positioning grooves, each positioning groove having a guide portion therein, each guide portion being used to connect a slider to position a pad.

[0011] In some embodiments, a limiting surface is provided at the connection point of two adjacent teeth in each pair of teeth. The limiting surface is perpendicular to the circumferential direction and is used to abut one end of the pushing member when the distance between the outer circumferential surface and the rotating shaft is minimal.

[0012] In some embodiments, the positioning member has a groove on the side facing away from the gasket, the groove for receiving the push rod assembly and communicating with the receiving groove to guide the push member to move in a first direction when the cam rotates.

[0013] In some embodiments, the pad mechanism further includes a lever, the positioning member is provided with a relief groove, the relief groove is connected to the groove, the lever passes through the relief groove and is connected to the cam, and the lever swings in the relief groove to drive the cam to rotate.

[0014] Embodiments of this application also provide a drilling device, including a drilling machine and a pad mechanism as described in the previous embodiment. The pad mechanism further includes a base, which is mounted on the drilling machine and used to connect a positioning member. The side of the pad mechanism facing away from the base is used to support a workpiece, so that the workpiece at least partially contacts the pad. The drilling machine is used to drill holes in the part of the workpiece that contacts the pad.

[0015] In the aforementioned drilling equipment, the workpiece is supported by a pad mechanism, so that the workpiece is at least partially located above the pad. The drilling machine punches holes in the part of the workpiece that contacts the pad. The pad can prevent the burrs generated by drilling the workpiece from turning outward, thereby improving the yield of the processed workpiece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the pad block mechanism in one embodiment of this application.

[0017] Figure 2 yes Figure 1 Exploded view of the central pad block mechanism.

[0018] Figure 3 yes Figure 1 Enlarged schematic diagram of the center pad and positioning groove.

[0019] Figure 4 yes Figure 1 A schematic diagram of the structure of the central base and the pushing component.

[0020] Figure 5 yes Figure 1 A schematic diagram of the center positioning component.

[0021] Figure 6 yes Figure 1 A schematic diagram of the center positioning component and the pushing assembly.

[0022] Explanation of main component symbols

[0023] 100, Pad mechanism; 10, Base; 20, Positioning component; 21, Positioning groove; 211, Guide part; 2111, Slide groove; 2112, First stop surface; 2113, Second stop surface; 22, Clearance groove; 23, Groove; 231, Protrusion; 30, Washer; 31, Slider; 311, Hook; 40, Push rod assembly; 41, Cam; 411, Hub; 4111, Rotating shaft; 412, Gear tooth; 4121, Limiting surface; 4101, Outer peripheral surface; 42, Pushing component; 421, Push rod; 4211, Receiving groove; 422, Push block; 423, Elastic component; 50, Lever; R, Distance; a, Circumferential direction; X, First direction.

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0028] In the description of the embodiments of this application, the term "perpendicular" is used to describe the ideal state between two components. In actual production or use, two components may be in a state that is approximately perpendicular. The term "parallel" is used to describe the ideal state between two components. In actual production or use, two components may be in a state that is approximately parallel.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0030] When drilling holes in a product, a gasket is often placed underneath the product to prevent burrs from forming during drilling. These gaskets are typically for single use only. After drilling a hole in a product, workers need to manually remove the used gasket and replace it with a new one. However, manually replacing gaskets is labor-intensive and inefficient.

[0031] An embodiment of this application provides a pad mechanism, including a positioning member, a pad, and a push rod assembly. The positioning member includes a positioning groove, and a guide portion is provided within the positioning groove, extending along a first direction. The pad is disposed on one side of the positioning member, and the pad has a slider, which is slidably connected to the guide portion. The push rod assembly is connected to the positioning member, and the push rod assembly includes a cam and a pushing member. The pushing member is movable relative to the positioning member along the first direction. One end of the pushing member abuts against the outer peripheral surface of the cam, and the other end of the pushing member is located within the positioning groove. The cam is rotatable relative to the positioning member, causing the outer peripheral surface to push the slider along the guide portion out of the positioning groove via the pushing member.

[0032] In the aforementioned pad mechanism, a guide is connected to a slider to position the pad on one side of the positioning groove. The push rod assembly rotates relative to the positioning member via a cam, causing the outer circumferential surface of the cam to push the push member along a first direction through one end of the push member. The other end of the push member pushes the slider out of the positioning groove along the guide, thereby disconnecting the pad from the positioning member and disassembling the pad installed on the positioning member. This mechanism is highly automated and improves the pad replacement efficiency by increasing the pad disassembly efficiency.

[0033] The embodiments of this application will be further described below with reference to the accompanying drawings. Unless otherwise specified, the various embodiments in this application can be combined with each other.

[0034] Please see Figure 1 An embodiment of this application provides a drilling device (not shown), including a drilling machine (not shown) and a pad mechanism 100. The drilling machine is used to drill holes in a workpiece (not shown). The pad mechanism 100 is used to support the workpiece.

[0035] In some embodiments, the workpiece is the casing of an electronic product that requires drilling. For example, a speaker casing. This application is not limited to this, and those skilled in the art can choose according to the actual situation.

[0036] Traditionally, the workpiece is placed directly on the worktable for drilling. The workpiece directly bears the impact and friction during drilling, which can easily damage the drill bit and cause burrs to form on the workpiece. To reduce burrs and protect the drill bit, as well as reduce drill bit wear, a shim 30 is usually placed on the workpiece table to support the workpiece.

[0037] In some embodiments, the pad mechanism 100 includes a base 10, a positioning member 20, and a pad 30. The base 10 is mounted on the worktable of the drilling machine for placing workpieces. The base 10 is used to connect the positioning member 20. The positioning member 20 is used to mount and position the pad 30. The drilling member is used to drill holes in the portion of the workpiece that contacts the pad 30. By using the base 10 and the positioning member 20, the pad 30 is mounted on the worktable and supports the portion of the workpiece that needs to be drilled, which reduces burrs generated during workpiece drilling, reduces drill bit wear, and protects the drill bit.

[0038] In some embodiments, during use, the base 10 is disposed on the worktable, with the pad 30 facing upwards, meaning that the side of the pad mechanism 100 facing away from the base 10 is used to support the workpiece. It is understood that the pad 30 can support the workpiece alone, or the pad 30 can support the workpiece together with the positioning member 20, so that the workpiece at least partially contacts the pad 30.

[0039] In the embodiments of this application, the workpiece is placed on the pad mechanism 100, so that the part of the workpiece to be drilled directly contacts the pad 30. The drilling machine operates, and the drill bit of the drilling machine passes through the workpiece and partially drills into the pad 30. In this way, the pad 30 acts as a buffer layer, which can change the force distribution on the workpiece, reduce the direct impact and friction of the drill bit on the worktable, thereby reducing the formation of burrs, improving the processing quality and precision of the workpiece, and increasing the yield of the processed workpiece.

[0040] In some embodiments, the base 10 and the positioning member 20 are fixedly connected by screws or pins to restrict relative rotation between the base 10 and the positioning member 20.

[0041] Please see Figure 2 In some embodiments, the positioning element 20 includes a positioning groove 21. See also... Figure 3 The positioning groove 21 is provided with a guide part 211. A slider 31 is provided on one side of the gasket 30. The slider 31 is slidably connected to the guide part 211, so that the gasket 30 is located on the side of the positioning member 20 where the positioning groove 21 is provided, so as to install the gasket 30 and position the gasket 30, and prevent the gasket 30 from shifting relative to the positioning groove 21 during installation.

[0042] Please see Figure 2 The pad mechanism 100 includes a push rod assembly 40. The push rod assembly 40 is located between the positioning member 20 and the base 10, and is connected to the positioning member 20. The push rod assembly 40 includes a cam 41 and a pusher 42. The cam 41 is rotatably connected to the base 10 and the positioning member 20 via a rotating shaft 4111. One end of the pusher 42 abuts against the outer peripheral surface 4101 of the cam 41, and the other end of the pusher 42 is located in the positioning groove 21. The cam 41 rotates relative to the positioning member 20, causing the outer peripheral surface 4101 of the cam 41 to push the pusher 42 to move. The other end of the pusher 42 pushes the slider 31 in the positioning groove 21 to move out of the positioning groove 21 along the guide portion 211, thereby disassembling the pad 30.

[0043] The rotation of cam 41 drives the movement of pusher 42, which in turn pushes slider 31 to slide along guide 211, thereby realizing the automatic disassembly of gasket 30 and improving the disassembly efficiency of gasket 30.

[0044] Please see Figure 3 In some embodiments, the guide portion 211 extends along a first direction X. The pusher 42 for pushing the slider 31 on the guide portion 211 can move relative to the positioning member 20 and the base 10 along the first direction X, so that the pushing direction of the pusher 42 is consistent with the moving direction of the slider 31, which facilitates the movement of the slider 31 along the guide portion 211 after being subjected to force.

[0045] Please see Figure 2 In some embodiments, the pivot 4111 is located at the center of the cam 41, and the first direction X can be any straight line direction passing through the pivot 4111 in a plane.

[0046] Please see Figure 4 In some embodiments, the pusher 42 includes a push block 422 and a push rod 421. The push block 422 is movably disposed in the positioning groove 21 and contacts the slider 31. The push rod 421 pushes against the outer peripheral surface 4101 of the cam 41 and is fixedly connected to the push block 422, so that the rotation of the cam 41 can drive the push rod 421 to move. The movement of the push rod 421 can push the push block 422 to move in the positioning groove 21. The movement of the push block 422 can push the slider 31 to move out of the positioning groove 21 along the guide portion 211 to remove the gasket 30.

[0047] In some embodiments, the pusher 42 further includes an elastic member 423. The elastic member 423 is connected to the positioning member 20 and the push rod 421 respectively. The elastic member 423 is used to elastically deform when the push rod 421 moves.

[0048] When push rod 421 moves away from rotating shaft 4111, push block 422 pushes slider 31 along guide portion 211 out of positioning groove 21, and elastic element 423 is elastically compressed. When elastic element 423 rebounds, push rod 421 moves away from positioning groove 21, and push block 422 moves into positioning groove 21, in preparation for pushing slider 31 again, that is, in preparation for the next removal of gasket 30.

[0049] In some embodiments, the elastic element 423 is a spring.

[0050] Please see Figure 5 and Figure 6 In some embodiments, the push rod 421 is provided with a receiving groove 4211 for accommodating the elastic member 423. The positioning member 20 is provided with a protrusion 231 on the side facing the push rod assembly 40. The elastic member 423 abuts against the protrusion 231 and the side of the receiving groove 4211 away from the push block 422, thereby causing the elastic member 423 to elastically abut against the positioning member 20 and the push rod 421, allowing the push rod 421 to elastically move along the first direction X.

[0051] When the elastic element 423 is elastically compressed, the protrusion 231 is spaced apart from the side of the receiving groove 4211 near the push block 422. When the elastic element 423 rebounds, the protrusion 231 abuts against the side of the receiving groove 4211 near the push block 422. At this time, the push rod 421 cannot continue to move toward the rotating shaft 4111, thus limiting the movement distance of the push rod 421 toward the rotating shaft 4111.

[0052] In some embodiments, the push rod 421 can pass through the positioning groove 21 to drive the push block 422 to move along the guide portion 211 within the positioning groove 21. The size of the push block 422 is larger than the size of the end of the push rod 421 used to connect to the push block 422, so as to prevent the push block 422 from moving out of the positioning groove 21 due to excessive movement towards the rotating shaft 4111, thereby confining the push block 422 within the positioning groove 21.

[0053] In some embodiments, the end of the push rod 421 that abuts against the outer peripheral surface 4101 is provided with a rounded corner, so that the end of the push rod 421 that abuts against the outer peripheral surface 4101 is a smooth arc surface, so that the push rod 421 can move under the push of the outer peripheral surface 4101.

[0054] Please see Figure 3In some embodiments, the guide portion 211 includes two slide grooves 2111, which are disposed on the two side walls of the positioning groove 21, and the two side walls of the positioning groove 21 are spaced apart. The spacing direction of the two side walls of the positioning groove 21 is perpendicular to the first direction X. Each slide groove 2111 includes a first stop surface 2112 and a second stop surface 2113 that are perpendicular to each other.

[0055] The slider 31 includes two hooks 311, which are spaced apart and connected to the pad 30. The spacing direction of the two hooks 311 is perpendicular to the first direction X, that is, the spacing direction of the two hooks 311 is parallel to the spacing direction of the two side walls of the positioning groove 21. Each hook 311 is slidably connected to a groove 2111, so that the two first stop surfaces 2112 restrict the slider 31 from moving along the spacing direction of the two hooks 311, and each second stop surface 2113 restricts one hook 311 from moving away from the positioning member 20. The two second stop surfaces 2113 restrict the slider 31 from moving away from the positioning member 20, thereby preventing the hooks 311 from disengaging from the groove 2111 when the drill bit is pulled out of the pad 30 and the pad 30 moves upward.

[0056] The guide part 211 connects two hooks 311 through two slide grooves 2111 to restrict the movement of the slider 31 in the first direction X, so that the pad 30 and the positioning member 20 are connected through the slider 31 and the guide part 211. The pad 30 is stably connected to the positioning member 20 to prevent the pad 30 from shaking or falling off during the drilling process.

[0057] In some embodiments, the push block 422 is slidably connected to the guide portion 211, so that the guide portion 211 guides the push block 422 to move along the first direction X, and restricts the push block 422 from shaking in the positioning groove 21 or moving upward out of the positioning groove 21.

[0058] Please see Figure 4 In some embodiments, the cam 41 includes a hub 411 and gear teeth 412. The hub 411 is disc-shaped and rotatably connected to the base 10 and the positioning member 20 via a pivot 4111. The gear teeth 412 are fixedly connected to the outer periphery of the hub 411.

[0059] The rotation direction of hub 411 is defined as circumferential direction a. In a tooth 412, the distance R between the outer circumferential surface 4101 and the shaft 4111 gradually decreases along circumferential direction a.

[0060] When the hub 411 rotates in the circumferential direction a, the part of the outer circumferential surface 4101 corresponding to a tooth 412 pushes against a pusher 42, causing the pusher 42 to move away from the rotating shaft 4111. The pusher 42 drives the pusher block 422 to move along the guide part 211, causing the pusher block 422 to push the slider 31 out of the positioning groove 21, so as to complete the disassembly of the gasket 30.

[0061] In some embodiments, the rotating shaft 4111 is connected to the center of the hub 411, and the first direction X is one of the radial directions of the hub 411. The radial direction of the hub 411 refers to the straight line direction along the diameter or radius of the hub 411. The diameter and radius of the hub 411 both pass through the center of the hub 411, that is, the radial direction refers to any straight line direction in a plane passing through the rotating shaft 4111.

[0062] In some embodiments, the cam 41 includes a plurality of teeth 412, which are uniformly and spacedly fixedly connected to the outer periphery of the hub 411. The push rod assembly 40 includes a plurality of push members 42, and the portion of the outer peripheral surface 4101 of the cam 41 corresponding to each tooth 412 is used to abut one end of a push member 42. The positioning member 20 includes a plurality of positioning grooves 21, each positioning groove 21 having a guide portion 211 for slidably connecting a slider 31, i.e., each guide portion 211 is used to position a pad 30.

[0063] The cam 41 drives multiple gear teeth 412 to move simultaneously through the rotation of the hub 411, so that the outer peripheral surface 4101 can simultaneously push multiple push members 42 to move, so as to push multiple sliders 31 out of the positioning groove 21 at the same time, thereby disassembling multiple gaskets 30 at the same time and improving the disassembly efficiency of gaskets 30.

[0064] Understandably, in the corresponding push member 42 and positioning groove 21, the extending direction of the guide part 211 moves in the same direction as the moving direction of the push member 42, so that the push member 42 pushes against the slider 31 on the corresponding guide part 211.

[0065] Please see Figure 4 In some embodiments, the cam 41 includes six teeth 412. It is understood that the number of pushers 42 and positioning slots 21 are both six, to allow for the simultaneous removal of six gaskets 30. This application does not limit this, and those skilled in the art can choose according to the actual situation.

[0066] In some embodiments, multiple gaskets 30 are arranged in a ring shape, allowing holes to be drilled around the entire circumference of the workpiece. This application does not limit this arrangement, and those skilled in the art can choose the appropriate method based on the specific requirements of the workpiece.

[0067] Please see Figure 4 In some embodiments, a limiting surface 4121 is provided at the junction of two adjacent teeth 412. The limiting surface 4121 is perpendicular to the circumferential direction a.

[0068] When the distance R between the outer peripheral surface 4101 in contact with the push rod 421 and the rotating shaft 4111 is at its minimum, the limiting surface 4121 abuts against one end of the push rod 421 to limit the rotation direction of the hub 411.

[0069] When the elastic element 423 rebounds, the push rod 421 moves toward the rotating shaft 4111, causing the cam 41 to rotate until the push rod 421 abuts against the limiting surface 4121. In this way, the rebound range of the elastic element 423 and the rotation range of the cam 41 can be limited by the limiting surface 4121.

[0070] In some embodiments, the cam 41 is ratchet-shaped.

[0071] In some embodiments, the pad mechanism 100 further includes a lever 50 connected to the cam 41 to drive the cam 41 to rotate.

[0072] Please see Figure 5 and Figure 6 In some embodiments, the positioning member 20 has a groove 23 on the side facing away from the gasket 30. The groove 23 is used to receive the push rod assembly 40 and communicates with the receiving groove 4211 to guide the push member 42 to move along the first direction X when the cam 41 rotates. One end of the push rod 421 connected to the push block 422 can drive the push block 422 to move within the receiving groove 4211.

[0073] In some implementations, the protrusion 231 is located within the groove 23 to abut against the elastic member 423.

[0074] Please see Figure 1 In some embodiments, the base 10 is connected to the side of the positioning member 20 with the groove 23 to constrain the push rod assembly 40 between the base 10 and the positioning member 20 to protect the push assembly.

[0075] Please see Figure 1 , Figure 5 and Figure 6 In some embodiments, the positioning member 20 is provided with a relief groove 22. The relief groove 22 connects to the recess 23, allowing the lever 50 to pass through the relief groove 22 and connect to the cam 41. By driving the lever 50 to swing within the relief groove 22, the cam 41 can be rotated.

[0076] In some embodiments, the curvature of the clearance groove 22 is the same as the curvature of a tooth 412, thereby limiting the swing of the lever 50 to the range of the curvature of a tooth 412 and preventing the cam 41 from rotating meaninglessly.

[0077] When the lever 50 swings to one inner wall of the clearance groove 22, the distance R between the outer peripheral surface 4101 of the push rod 421 and the rotating shaft 4111 is at its minimum. At this time, the slider 31 is located in the positioning groove 21, and the shim 30 is connected to the positioning member 20. When the lever 50 swings to the other inner wall of the clearance groove 22, the distance R between the outer peripheral surface 4101 of the push rod 421 and the rotating shaft 4111 is at its maximum. At this time, the slider 31 is pushed out of the positioning groove 21 by the push block 422, and the shim 30 is removed.

[0078] In some embodiments, the lever 50 can be operated by a worker. The lever 50 can also be controlled by automated equipment.

[0079] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. A spacer mechanism, characterized in that Comprise: Positioning piece, including positioning slot, the guide part is equipped in the positioning slot, the guide part extends along the first direction; Gasket, set in one side of the positioning piece, the gasket is equipped with sliding block, the sliding block is connected with the guide part slidingly; Push rod assembly, connected with the positioning piece, the push rod assembly includes cam and push piece, the push piece can move along the first direction relative to the positioning piece, one end of the push piece abuts the outer circumferential surface of the cam, the other end of the push piece is located in the positioning slot, the cam can rotate relative to the positioning piece, make the outer circumferential surface push the sliding block along the guide part by pushing the push piece and moving out of the positioning slot.

2. The shim mechanism of claim 1, wherein, The push piece includes push block, Push rod and elastic piece, the push block is movably arranged in the positioning slot and contacts the sliding block, the push rod is pushed to the outer circumferential surface and is connected with the push block, so that the cam rotation can drive the push rod to move to push the push block to move in the positioning slot, and the elastic piece is connected with the positioning piece and the push rod respectively and is used for elastically deforming when the push rod moves.

3. The shim mechanism of claim 2, wherein, The push rod is provided with accommodating groove, The accommodating groove is used for accommodating the elastic piece, the positioning piece is provided with protruding block on one side of the push rod assembly, and the elastic piece abuts the protruding block and the side of the accommodating groove away from the push block respectively.

4. The shim mechanism of claim 1, wherein, The guide part includes two sliding grooves, 5. The spacer mechanism according to any one of claims 1 to 4, wherein Two sliding grooves are arranged on the two side walls of the positioning slot, each sliding groove includes first stop surface and second stop surface which are perpendicular to each other, the sliding block includes two hooks, two hooks are connected to the gasket at intervals, each hook is slidingly connected to one sliding groove, two first stop surfaces stop the sliding block from moving in the direction between two hooks, and the second stop surface stops the sliding block from moving away from the positioning piece, and the direction between two hooks is perpendicular to the first direction. The cam includes hub and gear teeth, The hub is disc-shaped and is rotatably connected to the positioning piece through a rotating shaft, the gear teeth are arranged on the outer periphery of the hub, and the side of the gear teeth away from the rotating shaft is the outer circumferential surface; 6. The shim mechanism of claim 5, wherein, The direction of rotation of the hub is defined as the circumferential direction, in one gear tooth, the distance between the outer circumferential surface and the rotating shaft gradually decreases along the circumferential direction, so that the outer circumferential surface pushes the push piece to move along the first direction when the hub rotates along the circumferential direction. The cam includes a plurality of gear teeth, 7. The shim mechanism of claim 6, wherein, A plurality of gear teeth are arranged at intervals on the outer periphery of the hub, the push rod assembly includes a plurality of push pieces, the outer circumferential surface corresponding to each gear tooth is used to abut one end of each push piece, and the positioning piece includes a plurality of positioning slots, each positioning slot is provided with the guide part, and each guide part is used to connect one sliding block to position one gasket. In every two adjacent gear teeth, 8. The shim mechanism of claim 3, wherein, The connecting part of two gear teeth is provided with a limiting surface which is perpendicular to the circumferential direction, and the limiting surface is used to abut one end of the push piece when the distance between the outer circumferential surface and the rotating shaft is the smallest. The positioning piece is away from the gasket One side of the sheet is provided with a recess, the recess is used to accommodate the push rod assembly, and is communicated with the accommodating groove, so as to guide the pusher to move along the first direction when the cam rotates.

9. The shim mechanism of claim 8, wherein, The spacer mechanism further comprises a push rod The positioning member is provided with an avoiding groove, the avoiding groove is communicated with the recess, the push rod is arranged in the avoiding groove and connected with the cam, and swinging of the push rod in the avoiding groove can drive the cam to rotate.

10. A perforating apparatus characterized by, The spacer mechanism, the spacer mechanism further comprises a base, the base is installed on the puncher, and is used for connecting the positioning member, one side of the spacer mechanism away from the base is used for bearing the workpiece, so that the workpiece at least partially contacts the gasket, and the puncher is used for punching the part of the workpiece contacting the gasket. The spacer mechanism, the spacer mechanism further comprises a base, the base is installed on the puncher, and is used for connecting the positioning member, one side of the spacer mechanism away from the base is used for bearing the workpiece, so that the workpiece at least partially contacts the gasket, and the puncher is used for punching the part of the workpiece contacting the gasket.

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