Circuit board labeling equipment

Abstract

The utility model relates to the field of mounting equipment, in particular to circuit board labeling equipment. The circuit board labeling equipment comprises a rolling labeling mechanism. The rolling and pasting mechanism comprises a first displacement driving device, a labeling assembly and a pushing driving device; the labeling assembly comprises a pick-up head and a roller which are adjacently mounted, and the pick-up head is provided with a pick-up surface for picking up labels; the pushing driving device is used for driving the labeling assembly to incline, so that one end, far away from the roller, of the picking surface moves in the direction far away from a label; and the first displacement driving device is used for driving the labeling assembly to translate, so that the roller rolls on the pressed surface of the label. According to the circuit board labeling equipment provided by the invention, the rolling and pasting mechanism is arranged to apply pressure to the label in a rolling manner, so that the label more closely covers the circuit board, bubbles or creases can be avoided when the label is pasted, and the pasting flatness of the label is improved.

Description

Technical Field

[0001] The present application relates to the field of mounting equipment, and in particular to a circuit board labeling equipment. Background Art

[0002] In the existing surface mount production process, various labels are often required to be affixed to circuit board products for marking purposes.

[0003] In the prior art, when labeling a product, a suction cup is generally used to pick up the label, and the label is placed at the labeling position of the product, and then a pressure-maintaining device is used to press the label down so that the label is reliably attached to the surface of the product. For labels with a larger area, the existing pasting method is prone to cause bubbles or creases on the label, and the pasting is not smooth. Utility Model Content

[0004] The purpose of the present application is to provide a circuit board labeling device that can roll labels with a larger area to avoid bubbles or creases when the labels are pasted, thereby improving the smoothness of the label pasting.

[0005] The present application provides a circuit board labeling device, including a rolling and labeling mechanism;

[0006] The rolling mechanism comprises a first displacement driving device, a labeling assembly and a pushing driving device;

[0007] The labeling assembly includes a pick-up head and a roller mounted adjacently, the pick-up head being provided with a pick-up surface for picking up a label;

[0008] The pushing drive device is used to drive the labeling assembly to tilt so that the picking surface moves away from the end of the roller in a direction away from the label; the first shifting drive device is used to drive the labeling assembly to translate so that the roller rolls on the pressed surface of the label.

[0009] In the above technical solution, further, the rolling mechanism also includes a first bracket;

[0010] The first bracket includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are hinged, the first mounting plate is connected to the labeling assembly, the driving end of the push drive device is hinged to the first mounting plate, and the mounting end of the push drive device is hinged to the second mounting plate;

[0011] The first displacement driving device is connected to the second mounting plate.

[0012] In the above technical solution, further, the labeling assembly includes a steering drive device, a connecting shaft and an elastic connecting member;

[0013] The driving end of the steering drive device is connected to the top end of the connecting shaft through a coupling, and the bottom end of the connecting shaft is connected to the picking head through the elastic connecting piece.

[0014] In the above technical solution, further, it also includes a pressure maintaining mechanism;

[0015] The pressure-maintaining mechanism includes a pressing member, a lifting rail assembly and a plurality of counterweights; the lifting rail assembly includes a rail and a slider, and the guide direction of the rail is the direction of gravity; the pressing member is opposite to the label to be pressed, and the pressing member is connected to the slider so that the pressing member can slide along the direction of gravity;

[0016] The counterweight member is detachably connected to the pressing member.

[0017] In the above technical solution, further, the pressure-maintaining mechanism also includes a lifting drive assembly;

[0018] A limiting member is provided between the slide rail and the slider, and the slider which descends to a preset position relative to the slide rail is clamped and limited by the limiting member;

[0019] The lifting drive assembly is connected to the slide rail to drive the slide block and the pressing member to move away from the pressed label.

[0020] In the above technical solution, further, the lower pressing member includes a pressing head and a supporting member;

[0021] The support comprises a horizontal plate and a vertical plate connected to each other, the pressure head is connected to the bottom surface of the horizontal plate, and the vertical plate is connected to the slider;

[0022] The counterweight is placed on the top surface of the transverse plate, and a positioning column penetrating the counterweight is arranged on the top surface of the transverse plate.

[0023] In the above technical solution, further, the pressure-maintaining mechanism also includes a second bracket;

[0024] The second bracket includes a fixing plate, and the lifting drive assembly is installed on the top surface of the fixing plate;

[0025] A pressure-maintaining supporting assembly is arranged at the bottom of the fixed plate, and the pressure-maintaining supporting assembly comprises a pressure-maintaining driving device and a tray. The pressure-maintaining driving device is connected to the fixed plate, and a driving end of the pressure-maintaining driving device is connected to the tray.

[0026] In the above technical solution, further, it also includes a film tearing mechanism;

[0027] The film tearing mechanism includes a second shift driving device and a film tearing clamp, the film tearing clamp includes a first clamping member, a second clamping member and a lifting driving device, the first clamping member includes a transverse clamping portion, and the lifting driving device is used to drive the second clamping member to reciprocate to approach or move away from the transverse clamping portion, so as to clamp or release the label film;

[0028] The second shift driving device is used to drive the film tearing jaw to move so as to tear off the label film.

[0029] In the above technical solution, further, the first clamping member includes a vertical mounting portion, and the vertical mounting portion is spaced apart from the second clamping member;

[0030] The transverse clamping portion is provided with an arc transition surface on a side of the transverse clamping portion facing away from the second clamping piece.

[0031] In the above technical solution, further, the film tearing mechanism also includes a mounting block;

[0032] The first clamping member is connected to the mounting block, the lifting drive device is installed on the mounting block, and the driving end of the drive device is connected to the second clamping member to drive the second clamping member to reciprocate;

[0033] The mounting block is provided with a guide hole, and the second clamping member is slidably arranged in the guide hole.

[0034] Compared with the prior art, the beneficial effects of this application are:

[0035] The circuit board labeling device provided in the present application rolls and applies pressure to the label by setting a rolling mechanism so that the label can be more closely covered on the circuit board, thereby avoiding bubbles or creases when the label is pasted and improving the smoothness of the label pasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 A schematic diagram of the structure of the rolling mechanism provided in this application;

[0038] Figure 2 A schematic diagram of the structure of the pressure-maintaining mechanism provided for this application;

[0039] Figure 3A schematic diagram of the partial structure of the pressure-maintaining mechanism provided in this application;

[0040] Figure 4 A schematic diagram of the structure of the film tearing mechanism provided in this application;

[0041] Figure 5 for Figure 4 A magnified schematic diagram of center A.

[0042] In the figure: 101-rolling mechanism; 102-pressure-maintaining mechanism; 103-film-tearing mechanism; 104-labeling assembly; 105-driving drive device; 106-pickup head; 107-roller; 108-first bracket; 109-first mounting plate; 110-second mounting plate; 111-deep groove ball bearing; 112-connecting shaft; 113-elastic connecting piece; 114-servo motor; 115-reducer; 116-connecting sleeve; 117-down pressure piece; 118-lifting slide rail assembly; 119-counterweight; 120-pressing head ;121-support;122-horizontal plate;123-vertical plate;124-positioning column;125-second bracket;126-fixed plate;127-three-axis cylinder;128-connecting plate;129-column;130-pressure-maintaining supporting assembly;131-tray;132-pressure-maintaining drive device;133-lifting drive assembly;134-first clamping member;135-second clamping member;136-lifting drive device;137-horizontal clamping part;138-vertical mounting part;139-arc transition surface;140-mounting block. DETAILED DESCRIPTION

[0043] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0044] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] Embodiment 1

[0047] The circuit board labeling equipment provided in the present application is used to label circuit board products. In the labeling step, the equipment first picks up the label and then sticks the label on the sticking position of the circuit board; after the label is stuck to the circuit board, the label needs to be pressurized so that the label can be reliably connected to the circuit board; finally, the label film covering the label is torn off.

[0048] See also Figures 1 to 5 As shown, in order to implement the above steps, the circuit board labeling equipment provided by the present application includes a rolling mechanism 101, a pressure maintaining mechanism 102 and a film tearing mechanism 103.

[0049] like Figure 1 As shown, the rolling mechanism 101 includes a first shift drive device, a labeling component 104 and a pushing drive device 105; the labeling component 104 includes a pick-up head 106 and a roller 107 installed adjacently, and the pick-up head 106 is provided with a pick-up surface for picking up the label; the pushing drive device 105 is used to drive the labeling component 104 to tilt so that the pick-up surface moves away from the end of the roller 107 in a direction away from the label; the first shift drive device is used to drive the labeling component 104 to translate so that the roller 107 rolls on the pressed surface of the label.

[0050] In this embodiment, specifically, when the rolling mechanism 101 is labeling, the first shift drive device can drive the labeling assembly 104 to move to the label upper material position to pick up the label. Specifically, the pickup head 106 is provided with a plurality of adsorption holes to adsorb the label. Driven by the first shift drive device, the pickup head 106 can move above the product so that the label is attached to the product.

[0051] In order to avoid bubbles or creases when sticking labels with larger areas, the roller 107 can be used to roll on the pressed surface of the label to squeeze out bubbles and flatten creases. The driving device 105 is specifically a cylinder, which drives the labeling component 104 to tilt so that an angle of about 1° is formed between the adsorption surface of the pickup head 106 and the label. The product area is large and covers the entire pickup head and roller. The roller is slightly lower than the lower surface of the pickup head or an angle is formed between the adsorption surface of the pickup head and the label, so that the roller contacts the surface of the product to be attached before the adsorption surface of the pickup head. In specific operation, after the entire module is lowered, the roller contacts the surface of the product, and the label located below the roller is pressed onto the product. At this time, there is a certain gap between the label at the adsorption surface of the pickup head and the product. Since the adhesive strength of the label is greater than the strength of the negative pressure adsorption, when the module moves to the side away from the roller, the position of the label relative to the product remains unchanged until the label is completely attached to the product. During this process, the vacuum exists all the time, ensuring that the label does not shift relative to the product and making the label flatter when stretched.

[0052] In an optional scheme of this embodiment, the rolling mechanism 101 also includes a first bracket 108; the first bracket 108 includes a first mounting plate 109 and a second mounting plate 110, the first mounting plate 109 and the second mounting plate 110 are hinged, the first mounting plate 109 is connected to the labeling assembly 104, the driving end of the driving device 105 is hinged to the first mounting plate 109, and the mounting end of the driving device 105 is hinged to the second mounting plate 110; the first shifting drive device is connected to the second mounting plate 110.

[0053] In this embodiment, the first mounting plate 109, the second mounting plate 110 and the labeling assembly 104 are connected in sequence to form a triangular structure. When the push drive device 105 is extended and retracted, the second mounting plate 110 connected to the first displacement drive device does not move. Under the action of the push drive device 105, the first mounting plate 109 swings relative to the second mounting plate 110 to drive the labeling assembly 104 to tilt as a whole, thereby tilting the pickup surface of the pickup head 106. Specifically, the first mounting plate 109 and the second mounting plate 110 are connected by a deep groove ball bearing 111.

[0054] In an optional solution of this embodiment, the labeling assembly 104 includes a steering drive device, a connecting shaft 112 and an elastic connecting member 113; the steering drive device is used to steer the labeling assembly 104 so that the label is aligned with the position to be attached to the circuit board. The driving end of the steering drive device is connected to the top end of the connecting shaft 112 through a coupling, and the bottom end of the connecting shaft 112 is connected to the pickup head 106 through the elastic connecting member 113.

[0055] In this embodiment, the steering drive device includes a servo motor 114 and a reducer 115 connected to each other, and the driving end of the reducer 115 is connected to the top of the connecting shaft 112 through a coupling. The upper part of the first mounting plate 109 is connected to the reducer 115, and the outer sleeve 116 of the connecting shaft 112 is provided, and the connecting sleeve 116 is connected to the lower part of the first mounting plate 109, so that the connection area between the labeling assembly 104 and the first mounting plate 109 is larger and the connection is more reliable. The bottom end of the connecting shaft 112 is connected to the pickup head 106 through an elastic connector 113, which is specifically a spring. When the roller 107 rolls along the label, it can prevent excessive downward pressure from damaging the circuit board.

[0056] like Figure 2 and Figure 3 As shown, the pressure-maintaining mechanism 102 includes a pressing member 117, a lifting slide rail assembly 118 and a plurality of counterweight members 119; the lifting slide rail assembly 118 includes a slide rail and a slider, and the guide direction of the slide rail is the direction of gravity; the pressing member 117 is opposite to the pressurized label, and the pressing member 117 is connected to the slider so that the pressing member 117 can slide along the direction of gravity; the counterweight member 119 is detachably connected to the pressing member 117.

[0057] In this embodiment, when the label is under pressure, the pressing member 117 can be pressed onto the label to make the label more firmly connected to the circuit board. The pressing member 117 matches the shape of the label so that the pressing member 117 will not apply pressure to the circuit board area outside the label to avoid damaging the circuit board. The pressing member 117 is connected to the slider of the lifting rail assembly 118. The lifting rail assembly 118 can realize the installation and fixation of the clamping member, and can ensure that the pressing member 117 remains in a free fall state in the direction of gravity, and will not affect the pressure applied by the pressing member 117 on the label. The counterweight 119 is detachably connected to the pressing member 117, and different numbers of counterweights 119 can be set according to needs to be connected to the pressing member 117 to change the weight of the counterweight, thereby changing the pressure applied by the pressing member 117 on the label.

[0058] In an optional solution of this embodiment, the pressure-maintaining mechanism 102 also includes a lifting drive component 133; a limiting member is arranged between the slide rail and the slider, and the slider which descends to a preset position relative to the slide rail is limited by the limiting member; the lifting drive component 133 is connected to the slide rail to drive the slider and the pressing member 117 away from the pressurized label.

[0059] In this embodiment, a discharge position for placing circuit board products is provided on the lower pressing member 117. When the circuit board is placed at the discharge position, the slider connected to the lower pressing member 117 can slide on the slide rail so that the lower pressing member 117 can apply pressure to the label. Before loading the circuit board to the discharge position or after the circuit board is pressed, the lower pressing member 117 needs to be lifted to facilitate loading or unloading of the circuit board. The present application is connected to the slide rail through the lifting drive assembly 133 to drive the slide rail to rise. When the slide rail is lifted to the point where the limiter is engaged with the slider, the slide rail can drive the slider and the lower pressing member 117 to lift, so that the lower pressing member 117 can be kept away from the circuit board.

[0060] Specific as Figure 3 As shown, in an optional solution of this embodiment, the lower pressing member 117 includes a pressing head 120 and a supporting member 121. The supporting member 121 includes a horizontal plate 122 and a vertical plate 123, and the horizontal plate 122 and the vertical plate 123 are connected to form an L-shaped structure. The pressing head 120 is connected to the bottom surface of the horizontal plate 122, and the vertical plate 123 is connected to the slider. The counterweight 119 is placed on the top surface of the horizontal plate 122, and the horizontal plate 122 can support the counterweight 119, and the top surface of the horizontal plate 122 is provided with a positioning column 124 that penetrates the counterweight 119 to prevent the counterweight 119 from falling.

[0061] In an optional solution of this embodiment, the pressure-maintaining mechanism 102 further includes a second bracket 125. The second bracket 125 includes a fixed plate 126, and a lifting drive assembly 133 is installed on the top surface of the fixed plate 126. The lifting drive assembly 133 includes a three-axis cylinder 127 and a connecting plate 128. The driving shaft of the three-axis cylinder 127 is connected to the connecting plate 128, and the slide rail of the lifting slide rail assembly 118 is connected to the connecting plate 128. The second bracket 125 also includes four columns 129 arranged below the fixed plate 126, and the columns 129 are used to support the fixed plate 126 so that there is space for accommodating the pressure-maintaining support assembly 130 below the fixed plate 126. Two pressure-maintaining support assemblies 130 are provided, and the two pressure-maintaining support assemblies 130 are arranged opposite to each other to form a discharge position. The pressure-maintaining support assembly 130 includes a pressure-maintaining driving device 132 and a tray 131. The pressure-maintaining driving device 132 is connected to a vertical plate disposed below the fixed plate 126, and a driving end of the pressure-maintaining driving device 132 is connected to the tray 131. The pressure-maintaining driving device 132 is specifically a cylinder, which can support the tray 131.

[0062] like Figure 4 and Figure 5As shown, the film tearing mechanism 103 includes a second shifting drive device and a film tearing claw, the film tearing claw includes a first clamping member 134, a second clamping member 135 and a lifting drive device 136, the first clamping member 134 includes a transverse clamping portion 137, the lifting drive device 136 is specifically a cylinder, which is used to drive the second clamping member 135 to reciprocate to approach or move away from the transverse clamping portion 137, thereby clamping or releasing the label film; the second shifting drive device is used to drive the film tearing claw to move to tear off the label film.

[0063] In this embodiment, the film tearing mechanism 103 is located above the circuit board product. When tearing the film, the second shift drive device first drives the film tearing claw to move downward so that the first clamping member 134 is located below the label film and the second clamping member 135 is located above the label film; then the second clamping member 135 moves downward to clamp the label film; finally, the second shift drive device drives the film tearing claw to move to tear off the label film.

[0064] In an optional solution of this embodiment, the first clamping member 134 includes a vertical mounting portion 138 , which is spaced apart from the second clamping member 135 ; and a circular arc transition surface 139 is provided on the side of the transverse clamping portion 137 away from the second clamping member 135 .

[0065] In this embodiment, the first clamping member 134 includes a vertical mounting portion 138 and a transverse clamping portion 137, and the second clamping member 135 moves up and down along the vertical mounting portion 138 to get closer to the transverse clamping portion 137, thereby clamping the label film. The above structure brings the first clamping member 134 and the second clamping member 135 closer together, and the opening of the film tearing jaws is smaller, occupying less space.

[0066] Furthermore, before tearing the film, the second displacement driving device first drives the film tearing jaw to move downward, so that the first clamping member 134 is located below the label film, and the transverse clamping portion 137 presses down the label film. In order to prevent the label film from being bent under pressure and affecting the clamping of the label film, a circular arc transition surface 139 is provided at the bottom of the transverse clamping portion 137, so that the transverse clamping portion 137 can slide over the label film more easily and is not easy to cause the label film to be bent under pressure.

[0067] In an optional solution of this embodiment, the film tearing mechanism 103 further includes a mounting block 140. The first clamping member 134 is connected to the mounting block 140, the driving device is mounted on the mounting block 140, and the driving end of the driving device is connected to the second clamping member 135 to drive the second clamping member 135 to reciprocate; the mounting block 140 is provided with a guide hole, and the second clamping member 135 is slidably arranged in the guide hole to guide the lifting movement of the second clamping member 135 to prevent the movement of the second clamping member 135 from being offset.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In addition, a person skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present application and forming different embodiments.

Claims

1. A circuit board labeling device, characterized in that: Including a rolling mechanism; The rolling mechanism includes a first shift driving device, a labeling assembly and a pushing driving device; The labeling assembly includes a pick-up head and a roller mounted adjacently, the pick-up head being provided with a pick-up surface for picking up a label; The pushing drive device is used to drive the labeling assembly to tilt so that the picking surface moves away from the end of the roller in a direction away from the label; the first shifting drive device is used to drive the labeling assembly to translate so that the roller rolls on the pressed surface of the label.

2. The circuit board labeling device according to claim 1, characterized in that: The rolling mechanism also includes a first bracket; The first bracket includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are hinged, the first mounting plate is connected to the labeling assembly, the driving end of the push drive device is hinged to the first mounting plate, and the mounting end of the push drive device is hinged to the second mounting plate; The first displacement driving device is connected to the second mounting plate.

3. The circuit board labeling device according to claim 1, characterized in that: The labeling assembly includes a steering drive device, a connecting shaft and an elastic connecting piece; The driving end of the steering drive device is connected to the top end of the connecting shaft through a coupling, and the bottom end of the connecting shaft is connected to the picking head through the elastic connecting piece.

4. The circuit board labeling device according to claim 1, characterized in that: It also includes a pressure-maintaining mechanism; The pressure-maintaining mechanism includes a pressing member, a lifting rail assembly and a plurality of counterweights; the lifting rail assembly includes a rail and a slider, and the guide direction of the rail is the direction of gravity; the pressing member is opposite to the label to be pressed, and the pressing member is connected to the slider so that the pressing member can slide along the direction of gravity; The counterweight member is detachably connected to the pressing member.

5. The circuit board labeling device according to claim 4, characterized in that: The pressure-maintaining mechanism also includes a lifting drive assembly; A limiting member is provided between the slide rail and the slider, and the slider which descends to a preset position relative to the slide rail is clamped and limited by the limiting member; The lifting drive assembly is connected to the slide rail to drive the slide block and the pressing member to move away from the pressed label.

6. The circuit board labeling device according to claim 5, characterized in that: The lower pressing member includes a pressing head and a supporting member; The support comprises a horizontal plate and a vertical plate connected to each other, the pressure head is connected to the bottom surface of the horizontal plate, and the vertical plate is connected to the slider; The counterweight is placed on the top surface of the transverse plate, and a positioning column penetrating the counterweight is arranged on the top surface of the transverse plate.

7. The circuit board labeling device according to claim 5, characterized in that: The pressure-maintaining mechanism further includes a second bracket; The second bracket includes a fixing plate, and the lifting drive assembly is installed on the top surface of the fixing plate; A pressure-maintaining supporting assembly is arranged at the bottom of the fixed plate, and the pressure-maintaining supporting assembly comprises a pressure-maintaining driving device and a tray. The pressure-maintaining driving device is connected to the fixed plate, and a driving end of the pressure-maintaining driving device is connected to the tray.

8. The circuit board labeling device according to claim 1, characterized in that: Also includes a film tearing mechanism; The film tearing mechanism includes a second shift driving device and a film tearing clamp, the film tearing clamp includes a first clamping member, a second clamping member and a lifting driving device, the first clamping member includes a transverse clamping portion, and the lifting driving device is used to drive the second clamping member to reciprocate to approach or move away from the transverse clamping portion, so as to clamp or release the label film; The second shift driving device is used to drive the film tearing jaw to move so as to tear off the label film.

9. The circuit board labeling device according to claim 8, characterized in that: The first clamping member includes a vertical mounting portion, and the vertical mounting portion is spaced apart from the second clamping member; The transverse clamping portion is provided with an arc transition surface on a side of the transverse clamping portion facing away from the second clamping piece.

10. The circuit board labeling device according to claim 8, characterized in that: The film tearing mechanism also includes a mounting block; The first clamping member is connected to the mounting block, the lifting drive device is installed on the mounting block, and the driving end of the drive device is connected to the second clamping member to drive the second clamping member to reciprocate; The mounting block is provided with a guide hole, and the second clamping member is slidably arranged in the guide hole.

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