Key product tensioning and positioning tool and key product tensioning method

Abstract

The invention discloses a key product tensioning and positioning tool and a key product tensioning method.The key product tensioning and positioning tool comprises a mounting base, a product supporting and positioning assembly and a product hasp tensioning assembly are arranged on the mounting base, and the product hasp tensioning assembly is located on one side of the product supporting and positioning assembly; the product hasp tensioning assembly is used for tensioning a hasp in the middle of the product; the product hasp tensioning assembly comprises a tensioning installation base and a tensioning mechanism, the tensioning mechanism is vertically connected with the tensioning installation base in a sliding mode through a first sliding rail, and the tensioning mechanism comprises a tensioning clamping jaw installation plate, a second sliding rail, a first clamping jaw air cylinder, a first clamping jaw installation plate and a tensioning clamping jaw. And a lifting driving air cylinder for driving the first clamping jaw air cylinder to jack is arranged on the tensioning mounting base. According to the structure, the upper structure and the lower structure of a key product can be accurately positioned at the same time through the arrangement of the product supporting and positioning assembly and the product hasp tensioning assembly.

Description

Technical Field

[0001] The invention relates to the field of product positioning, and in particular to a tightening and positioning tool for a key product and a tightening method for a key product. Background Art

[0002] As electronic products become increasingly powerful, their internal structures become more complex, and the requirements for product assembly become higher. For example, the buttons of mobile phones and watches have two layers of rotating buckles. During the assembly and welding process, not only do you need to accurately position the product, but you also need to tighten the buckle in the middle of the product.

[0003] Since the product is small and relatively fragile, the conventional pull-down solution not only makes it difficult to control the pull-down force, but also easily damages the product. At the same time, the conventional pull-down structure is too bulky and is therefore not suitable for automated production. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a tensioning and positioning tool for a key product, which can realize the positioning of the key product and conveniently adjust and control the downward pulling force.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a button product tightening and positioning tool, comprising a mounting base, on which a product support and positioning component and a product buckle tightening component are arranged, the product buckle tightening component is located on one side of the product support and positioning component, and the product buckle tightening component is used to tighten the buckle in the middle of the product;

[0006] The product buckle tightening assembly includes a tightening mounting base and a tightening mechanism, the tightening mechanism is vertically slidably connected with the tightening mounting base through a first slide rail, the tightening mechanism includes a tightening jaw mounting plate, a second slide rail, a first jaw cylinder, a first jaw mounting plate and a tightening jaw, a second slide rail is horizontally arranged above the first jaw mounting plate, a first jaw cylinder is installed on the side of the first jaw mounting plate, a tightening jaw is installed on the first jaw mounting plate, an output end of the first jaw cylinder is connected to the first jaw mounting plate, and a lifting drive cylinder for driving the first jaw cylinder to lift is arranged on the tightening mounting base;

[0007] It also includes a tensioning force adjusting mechanism for adjusting the tensioning force when the tensioning clamping jaw moves downward.

[0008] Furthermore, the tensioning force adjustment mechanism includes a counterweight block installed on one side of the tensioning clamp mounting plate, so that the product tensioning demand force is greater than the tensioning mechanism's own gravity.

[0009] Furthermore, the tensioning force adjustment mechanism includes an adjusting bolt installed on a tensioning mounting base, a compression spring is provided at the upper end of the adjusting bolt, a spring top block is provided at the upper end of the compression spring, and the spring top block is fixedly connected to the first clamping jaw mounting plate, so that the product tensioning requirement force is less than the tensioning mechanism's own gravity.

[0010] Furthermore, a limit block is arranged on the top of the lifting drive cylinder, and the top of the lifting drive cylinder contacts the bottom of the limit block;

[0011] A differential head mounting block is arranged on one side of the tension mounting base, a differential head is arranged on the differential head mounting block, a contact block cooperating with the differential head is arranged on one side of the tension clamping jaw mounting plate, and the lower end of the differential head contacts the contact block.

[0012] Furthermore, a first mounting block and a second mounting block are provided at the bottom of the first clamp mounting plate, a first mounting cavity for mounting the output end of the first clamp cylinder is provided between the first mounting block and the second mounting block, a first ball head plunger is provided on the side of the second mounting block facing the first mounting block, a first flat end top screw which can be extended into the first mounting cavity is provided on the second mounting block, and the output end of the first clamp cylinder is restricted in the first mounting cavity by the first ball head plunger and the first flat end top screw.

[0013] Furthermore, the product support and positioning assembly includes a support mounting seat, a guide rail back plate is arranged on the support mounting seat, a horizontal linear guide rail is arranged on the guide rail back plate, and also includes a second clamping jaw mounting plate and a second clamping jaw cylinder, the second clamping jaw mounting plate is mounted on the horizontal linear guide rail, a positioning clamping jaw is mounted on the second clamping jaw mounting plate, and an output end of the second clamping jaw cylinder is connected to the second clamping jaw mounting plate;

[0014] An air distributor block connected to the second clamping jaw cylinder is arranged on the support mounting base, and a speed control valve for controlling the air intake speed is arranged on the air distributor block.

[0015] Furthermore, a third mounting block and a fourth mounting block are arranged at the bottom of the second clamp mounting plate, a second mounting cavity for mounting the output end of the second clamp cylinder is arranged between the third mounting block and the fourth mounting block, a second ball head plunger is arranged on the side of the third mounting block facing the fourth mounting block, a second flat end top screw which can be extended into the second mounting cavity is arranged on the second mounting block, and the output end of the second clamp cylinder is restricted in the second mounting cavity by the second ball head plunger and the second flat end top screw.

[0016] Furthermore, the mounting base includes a mounting base plate, base plate adjustment blocks are respectively arranged around the mounting base plate, adjustment threaded holes are arranged on the sides of the base plate adjustment blocks, adjustment bolts are arranged inside the adjustment threaded holes, and the ends of the adjustment bolts are in contact with the side surfaces of the mounting base plate, threaded through holes are arranged on the mounting base plate, the upper part of the threaded through holes is covered with metal gaskets, and also includes fixing bolts passing through the threaded through holes and the metal gaskets.

[0017] The present invention also discloses a method for tightening a key product, including the above-mentioned key product tightening and positioning tooling, comprising the following steps:

[0018] Step 1: Place the pre-installed key product into the positioning clamp and clamp the upper structure of the key product through the positioning clamp;

[0019] Step 2: The tightening claws clamp the lower structure of the button product, and then the lifting end of the lifting drive cylinder descends. Under the action of the tensioning mechanism's own gravity, the tensioning mechanism moves downward, so that the tightening claws clamp the lower part of the product and pull down the buckle in the middle of the button product.

[0020] Furthermore, when the product tensioning demand force is greater than the tensioning mechanism's own gravity, a counterweight is installed on one side of the tensioning jaw mounting plate to increase the product tensioning force;

[0021] When the required tightening force of the product is less than the weight of the tightening mechanism itself, an adjusting bolt is installed on the tightening mounting base, a compression spring is arranged at the upper end of the adjusting bolt, and a spring top block is arranged at the upper end of the compression spring, and the spring top block is fixedly connected to the first clamping jaw mounting plate. By adjusting the height of the adjusting bolt, the compression amount of the compression spring is adjusted to balance the gravity of the tightening mechanism itself, thereby reducing the tightening force of the product.

[0022] The beneficial effects of the present invention are:

[0023] 1. This structure can accurately position the upper structure and lower structure of the button product at the same time through the arrangement of the product support positioning component and the product buckle tensioning component.

[0024] 2. In this structure, the tensioning force can be adjusted according to the different tensioning force requirements of different products through the setting of the tensioning force adjustment mechanism, thereby realizing the control of the tensioning force.

[0025] 3. In this structure, the vertical initial position of the tensioning jaw can be adjusted by the coordinated setting of the differential head and the abutment block. The horizontal positions of the tensioning jaw and the positioning jaw can be adjusted by the setting of the first flat-end top screw, the first ball head plunger, the second flat-end top screw and the second ball head plunger, thereby ensuring the accuracy of the positioning of the button product.

[0026] 4. In this structure, the bottom plate position can be fine-tuned by setting the bottom plate adjustment block, thereby adjusting the position of the entire product support positioning component and the product buckle tensioning component, thereby ensuring the accuracy of product positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the tensioning and positioning tooling for the button product according to an embodiment of the present application.

[0028] Figure 2 This is a schematic structural diagram of a product support and positioning assembly of a button product tensioning and positioning tooling according to an embodiment of the present application.

[0029] Figure 3 This is a schematic structural diagram of the positioning claws of the product support and positioning assembly of the button product tensioning and positioning tooling in an embodiment of the present application.

[0030] Figure 4 This is a schematic structural diagram of the product buckle tightening component of the button product tightening and positioning tooling in an embodiment of the present application.

[0031] Figure 5 This is an exploded schematic diagram of the product buckle tightening component of the button product tightening and positioning tooling of an embodiment of the present application.

[0032] Figure 6 This is a schematic diagram of the tightening claw portion of the product buckle tightening component of the button product tightening and positioning tooling in an embodiment of the present application.

[0033] Figure 7 This is a schematic diagram of the structure of the key product of this application.

[0034] The markings in the figure are:

[0035] Product support and positioning assembly 1, positioning clamp 101, horizontal linear guide 102, guide rail back plate 103, second clamp mounting plate 104, second ball plunger 1041, second flat end top screw 1042, second clamp cylinder 105, support mounting seat 106, gas distributor 107;

[0036] Product buckle tensioning assembly 2, tensioning jaw 201, first jaw mounting plate 202, first jaw cylinder 203, limit block 204, lifting drive cylinder 205, spring top block 206, compression spring 207, adjustment bolt 208, second slide rail 209, tensioning jaw mounting plate 2010, first slide rail 2011, differential head 2012, counterweight 2013, tensioning mounting base 2014, first ball head plunger 2021, first flat end top screw 2022;

[0037] Installing base 3, metal gasket 301, installing bottom plate 302, bottom plate adjusting block 303;

[0038] Key products 4. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] like Figure 1 As shown, the embodiment of the present application discloses a button product tightening and positioning tool, including a mounting base 3, on which a product support and positioning component 1 and a product buckle tightening component 2 are arranged, and the product buckle tightening component 2 is located on one side of the product support and positioning component 1, and the product buckle tightening component 2 is used to tighten the buckle in the middle of the product;

[0041] The product buckle tightening assembly 2 includes a tightening installation base 2014 and a tightening mechanism, the tightening mechanism is vertically slidably connected with the tightening installation base 2014 through a first slide rail 2011, the tightening mechanism includes a tightening jaw mounting plate 2010, a second slide rail 209, a first jaw cylinder 203, a first jaw mounting plate 202 and a tightening jaw 201, the second slide rail 209 is horizontally arranged above the first jaw mounting plate 202, the first jaw cylinder 203 is installed on the side of the first jaw mounting plate 202, the tightening jaw 201 is installed on the first jaw mounting plate 202, the output end of the first jaw cylinder 203 is connected to the first jaw mounting plate 202, and the tightening installation base 2014 is provided with a lifting drive cylinder 205 for driving the first jaw cylinder 203 to lift;

[0042] It also includes a tensioning force adjustment mechanism for adjusting the tensioning force when the tensioning jaw 201 moves downward.

[0043] Specifically, it needs to be explained that the button product includes an upper structure and a lower structure. There is elasticity between the upper structure and the lower structure. When performing assembly or welding operations, the upper part of the product needs to be positioned and clamped, and the lower part of the product needs to be clamped and pulled down so that the buckle between the upper part and the lower part of the product is tightened, and subsequent assembly and welding operations are performed in the tightened state. Therefore, this positioning tooling can be used in conjunction with an external assembly welding machine.

[0044] During specific operation, the pre-installed button product is placed in the positioning clamp 101, and the upper structure of the button product is clamped by the positioning clamp 101. Then the lifting drive cylinder 205 lifts the tightening mechanism, so that the tightening clamp 201 moves to the tightening position and clamps the lower part of the button product. Then the driving end of the lifting drive cylinder 205 descends, and the tightening mechanism descends synchronously, so that the tightening clamp 201 drives the lower part of the product to descend, thereby completing the buckle tightening operation in the button product.

[0045] This structure can accurately position the upper structure and the lower structure of the button product at the same time through the arrangement of the product support positioning component 1 and the product buckle tightening component 2.

[0046] In this embodiment, since the tensioning mechanism itself has a certain gravity, when the product tension demand is greater than the gravity of the tensioning mechanism itself, the tensioning force adjustment mechanism includes a counterweight block 2013 installed on one side of the tensioning clamp mounting plate, that is, the product tension at this time is the gravity of the tensioning mechanism itself plus the gravity of the counterweight block 2013, so the product tension can be adjusted by adjusting the weight of the counterweight block 2013.

[0047] In this embodiment, when the product tightening demand force is less than the tensioning mechanism's own gravity, the tensioning force adjustment mechanism includes an adjustment bolt 208 installed on the tensioning mounting base 2014, and a compression spring 207 is provided at the upper end of the adjustment bolt 208. A spring top block 206 is provided at the upper end of the compression spring 207, and the spring top block 206 is fixedly connected to the first clamp mounting plate 202.

[0048] That is, by giving a reaction force to the tensioning mechanism through the compression spring 207, the weight of the tensioning mechanism can be reduced. That is, the tensioning force at this time is the gravity of the tensioning mechanism minus the reaction force of the tensioning mechanism given by the compression spring 207. When the tensioning force needs to be adjusted, the adjusting bolt 208 is turned to adjust the compression amount of the compression spring 207, that is, adjust the reaction force given to the tensioning mechanism by the compression spring 207, and then balance the gravity of the tensioning mechanism itself, so that the downward pulling force of the tensioning mechanism is balanced to the required pulling force requirement.

[0049] In this structure, the tensioning force can be adjusted according to the different tensioning force requirements of different products through the setting of the tensioning force adjustment mechanism, thereby realizing the control of the tensioning force, and this method is simple to control and the tension is stable.

[0050] In this embodiment, a limit block 204 is provided on the top of the lifting drive cylinder 205, and the top of the lifting drive cylinder 205 contacts the bottom of the limit block 204;

[0051] A differential head mounting block is provided on one side of the tensioning mounting base 2014, a differential head 2012 is provided on the differential head mounting block, a contact block cooperating with the differential head 2012 is provided on one side of the tensioning clamping jaw mounting plate 2010, and the lower end of the differential head 2012 is in contact with the contact block.

[0052] Specifically, during driving, the lifting drive cylinder 205 pushes the limit block 204, so that the tensioning jaw 201 moves to the revealing position. At this time, the tensioning jaw 201 can clamp the lower part of the key product, and the driving end of the lifting drive cylinder 205 descends. At this time, the tensioning mechanism descends by its own gravity, so that the tensioning jaw 201 drives the lower part of the product to descend, thereby completing the buckle tightening operation in the key product. When it is necessary to adjust the starting position of the tensioning jaw 201, the differential head 2012 can be turned to make the tensioning mechanism perform a lifting movement relative to the tensioning mounting base 2014, thereby adjusting the relative distance between the tensioning mechanism and the tensioning mounting base 2014, thereby realizing the adjustment of the initial position of the tensioning jaw 201 when it is lifted up, thereby ensuring the accuracy of the positioning of the key product.

[0053] In this embodiment, a first mounting block and a second mounting block are provided at the bottom of the first clamp mounting plate 202, a first mounting cavity for installing the output end of the first clamp cylinder 203 is provided between the first mounting block and the second mounting block, a first ball head plunger 2021 is provided on the side of the second mounting block facing the first mounting block, a first flat end top screw 2022 which can be extended into the first mounting cavity is provided on the second mounting block, and the output end of the first clamp cylinder 203 is restricted in the first mounting cavity by the first ball head plunger 2021 and the first flat end top screw 2022.

[0054] It should be explained that there are two first clamp mounting plates 202 in the present structure and the structures are the same. The two output ends of the first clamp cylinder 203 are respectively connected to the two first clamp mounting plates 202 . The tensioning clamps 201 include two, and the product is clamped between the two tensioning clamps 201 .

[0055] When the position of the tightening clamping jaw 201 needs to be adjusted, the first flat-end top screw 2022 can be screwed to adjust the position of the output end of the first clamping jaw cylinder 203 in the first installation cavity, that is, to adjust the position of the tightening clamping jaw 201 .

[0056] The setting of the above-mentioned flexible connection mode can realize the rapid adjustment of the position of the tensioning clamping jaw 201, thereby improving the accuracy of product positioning.

[0057] In this embodiment, the product support and positioning assembly 1 includes a support mounting seat 106, a guide rail back plate 103 is arranged on the support mounting seat 106, a horizontal linear guide rail 102 is arranged on the guide rail back plate 103, and also includes a second clamping jaw mounting plate 104 and a second clamping jaw cylinder 105, the second clamping jaw mounting plate 104 is mounted on the horizontal linear guide rail 102, a positioning clamping jaw 101 is installed on the second clamping jaw mounting plate 104, and the output end of the second clamping jaw cylinder 105 is connected to the second clamping jaw mounting plate 104;

[0058] The support mounting base 3 is provided with an air distribution block 107 connected to the second clamping jaw cylinder 105 , and the air distribution block 107 is provided with a speed control valve for controlling the air intake speed.

[0059] During specific operation, the pre-installed key product is placed in the positioning jaw 101. Driven by the second jaw, the positioning jaw 101 clamps the upper structure of the key product. At the same time, the opening and closing speed of the second jaw can be adjusted by controlling the speed control valve.

[0060] In the above structure, the horizontal linear guide rail 102 is provided to ensure smooth operation of the positioning jaw 101, and the opening and closing speed of the second jaw cylinder 105 can be controlled by the air distributor block 107 and the speed control valve.

[0061] In this embodiment, a third mounting block and a fourth mounting block are provided at the bottom of the second clamping jaw mounting plate 104, a second mounting cavity for installing the output end of the second clamping jaw cylinder 105 is provided between the third mounting block and the fourth mounting block, a second ball head plunger 1041 is provided on the side of the third mounting block facing the fourth mounting block, a second flat end top screw 1042 which can be extended into the second mounting cavity is provided on the second mounting block, and the output end of the second clamping jaw cylinder 105 is restricted in the second mounting cavity by the second ball head plunger 1041 and the second flat end top screw 1042.

[0062] It should be explained that there are two second clamp mounting plates 104 in this structure with the same structure, the two output ends of the second clamp cylinder 105 are respectively connected to the two second clamp mounting plates 104, the positioning jaws include two, and the product is clamped between the two positioning jaws 101.

[0063] When the position of the positioning jaw 101 needs to be adjusted, the second flat-end top screw 1042 can be screwed to adjust the position of the output end of the second jaw cylinder 105 in the second installation cavity, that is, to adjust the position of the positioning jaw 101 .

[0064] The setting of the above-mentioned flexible connection mode can realize the rapid adjustment of the position of the positioning jaw 101, thereby improving the accuracy of product positioning.

[0065] In this embodiment, the mounting base 3 includes a mounting base plate 302, and base plate adjustment blocks 303 are respectively arranged around the mounting base plate 302. Adjustment threaded holes are arranged on the sides of the base plate adjustment blocks 303, and adjustment bolts are arranged inside the adjustment threaded holes. The ends of the adjustment bolts are in contact with the side surfaces of the mounting base plate 302. A threaded through hole is arranged on the mounting base plate 302, and the upper part of the threaded through hole is covered with a metal gasket 301, and also includes a fixing bolt passing through the threaded through hole and the metal gasket 301.

[0066] Specifically, the above-mentioned mounting base plate 302 and base plate adjustment block 303 can be respectively installed on an external assembly welding machine. First, fix the base plate adjustment blocks 303 around the four sides, abut the mounting base plate 302 through adjusting bolts, adjust the mounting base plate 302 to a suitable position, and then use fixing bolts to fix the mounting base plate 302 on the external assembly welding machine.

[0067] The arrangement of this structure can realize accurate adjustment of the installation base plate 302, thereby ensuring the accuracy of product positioning.

[0068] The present invention also discloses a method for tightening a key product, including the above-mentioned key product tightening and positioning tooling, comprising the following steps:

[0069] Step 1: Place the pre-installed key product into the positioning clamp 101, and clamp the upper structure of the key product through the positioning clamp 101;

[0070] Step 2: The tightening jaws 201 clamp the lower structure of the button product, and then the lifting end of the lifting drive cylinder 205 descends. Under the action of the tensioning mechanism's own gravity, the tensioning mechanism moves downward, so that the tightening jaws 201 clamp the lower part of the product and pull down the buckle in the middle of the button product.

[0071] This method can accurately position the upper structure and lower structure of the button product at the same time by setting up the product support positioning component 1 and the product buckle tensioning component 2, and uses the tensioning mechanism's own gravity as the tensioning force, which can make the tensioning force more stable and will not change due to external control.

[0072] In this embodiment, when the product tensioning demand force is greater than the tensioning mechanism's own gravity, a counterweight block 213 is installed on one side of the tensioning jaw mounting plate 210 to increase the product tensioning force;

[0073] When the required tightening force of the product is less than the weight of the tightening mechanism itself, an adjusting bolt 208 is installed on the tightening mounting base 2014, a compression spring 207 is arranged at the upper end of the adjusting bolt 208, and a spring top block 206 is arranged at the upper end of the compression spring 207, and the spring top block 206 is fixedly connected to the first clamp mounting plate 202. By adjusting the height of the adjusting bolt 208, and then adjusting the compression amount of the compression spring 207, the gravity of the tightening mechanism itself can be balanced to reduce the product tightening force.

[0074] In the method, the tensioning force can be adjusted according to the different tensioning force requirements of different products by setting the tensioning force adjustment mechanism, thereby achieving control over the tensioning force and further expanding the scope of use of the tooling.

[0075] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tightening and positioning tool for a button product, characterized in that: The mounting base (3) is provided with a product support and positioning component (1) and a product buckle tightening component (2), wherein the product buckle tightening component (2) is located on one side of the product support and positioning component (1), and the product buckle tightening component (2) is used to tighten the buckle in the middle of the product; The product buckle tightening assembly (2) comprises a tightening installation base (2014) and a tightening mechanism, wherein the tightening mechanism is vertically slidably connected to the tightening installation base (2014) via a first slide rail (2011), and the tightening mechanism comprises a tightening jaw mounting plate (2010), a second slide rail (209), a first jaw cylinder (203), a first jaw mounting plate (202) and a tightening jaw (201), wherein the second slide rail (209) is horizontally arranged above the first jaw mounting plate (202), the first jaw cylinder (203) is installed on the side of the first jaw mounting plate (202), the tightening jaw (201) is installed on the first jaw mounting plate (202), the output end of the first jaw cylinder (203) is connected to the first jaw mounting plate (202), and the tightening installation base (214) is provided with a lifting drive cylinder (205) for driving the first jaw cylinder (203) to lift. It also includes a tensioning force adjustment mechanism for adjusting the tensioning force when the tensioning clamping jaw (201) moves downward.

2. A button product tensioning and positioning tool as claimed in claim 1, characterized in that: The tensioning force adjustment mechanism comprises a counterweight block (2013) installed on one side of the tensioning clamp mounting plate, so that the product tensioning demand force is greater than the tensioning mechanism's own gravity.

3. A tensioning and positioning tool for a key product as claimed in claim 1, characterized in that: The tensioning force adjustment mechanism comprises an adjustment bolt (208) mounted on a tensioning mounting base (2014); a compression spring (207) is arranged at the upper end of the adjustment bolt (208); a spring top block (206) is arranged at the upper end of the compression spring (207); the spring top block (206) is fixedly connected to the first clamping jaw mounting plate (202), so that the product tensioning requirement force is less than the tensioning mechanism's own weight.

4. A tensioning and positioning tool for a key product as claimed in claim 1, characterized in that: A limit block (204) is arranged on the top of the lifting drive cylinder (205), and the top of the lifting drive cylinder (205) contacts the bottom of the limit block (204); A differential head mounting block is arranged on one side of the tensioning mounting base (2014), a differential head (2012) is arranged on the differential head mounting block, and an abutment block cooperating with the differential head (2012) is arranged on one side of the tensioning clamping jaw mounting plate (2010), and the lower end of the differential head (2012) abuts against the abutment block.

5. A tensioning and positioning tool for a key product as claimed in claim 1, characterized in that: A first mounting block and a second mounting block are arranged at the bottom of the first clamping jaw mounting plate (202); a first mounting cavity for mounting the output end of the first clamping jaw cylinder (203) is arranged between the first mounting block and the second mounting block; a first ball head plunger (2021) is arranged on the side of the second mounting block facing the first mounting block; a first flat end top screw (2022) that can extend into the first mounting cavity is arranged on the second mounting block; and the output end of the first clamping jaw cylinder (203) is restricted in the first mounting cavity by the first ball head plunger (2021) and the first flat end top screw (2022).

6. A tensioning and positioning tool for a key product as claimed in claim 1, characterized in that: The product support and positioning assembly (1) comprises a support mounting seat (106), a guide rail back plate (103) is arranged on the support mounting seat (106), a horizontal linear guide rail (102) is arranged on the guide rail back plate (103), and further comprises a second clamping jaw mounting plate (104) and a second clamping jaw cylinder (105), the second clamping jaw mounting plate (104) is mounted on the horizontal linear guide rail (102), a positioning clamping jaw (101) is mounted on the second clamping jaw mounting plate (104), and an output end of the second clamping jaw cylinder (105) is connected to the second clamping jaw mounting plate (104); An air distribution block (107) connected to the second clamping jaw cylinder (105) is arranged on the support mounting base (3), and a speed control valve for controlling the air intake speed is arranged on the air distribution block (107).

7. A tensioning and positioning tool for a key product as claimed in claim 6, characterized in that: A third mounting block and a fourth mounting block are arranged at the bottom of the second clamping jaw mounting plate (104); a second mounting cavity for mounting the output end of the second clamping jaw cylinder (105) is arranged between the third mounting block and the fourth mounting block; a second ball head plunger (1041) is arranged on the side of the third mounting block facing the fourth mounting block; a second flat end top screw (1042) which can extend into the second mounting cavity is arranged on the second mounting block; and the output end of the second clamping jaw cylinder (105) is restricted in the second mounting cavity by the second ball head plunger (1041) and the second flat end top screw (1042).

8. A button product tensioning and positioning tool as claimed in claim 1, characterized in that: The mounting base (3) comprises a mounting base plate (302), base plate adjustment blocks (303) are respectively arranged around the mounting base plate (302), adjustment threaded holes are arranged on the sides of the base plate adjustment blocks (303), adjustment bolts are arranged inside the adjustment threaded holes, and the ends of the adjustment bolts are in contact with the side surfaces of the mounting base plate (302), threaded through holes are arranged on the mounting base plate (302), the upper part of the threaded through holes is covered with metal gaskets (301), and fixing bolts passing through the threaded through holes and the metal gaskets (301) are also included.

9. A method for tightening a key product, comprising the key product tightening and positioning tool as claimed in any one of claims 1 to 8, characterized in that: The steps include: Step 1: placing the pre-installed key product into the positioning clamp (101), and clamping the upper structure of the key product by the positioning clamp (101); Step 2: The tightening clamp (201) clamps the lower structure of the button product, and then the lifting end of the lifting drive cylinder (205) descends. Under the action of the tensioning mechanism's own gravity, the tensioning mechanism moves downward, so that the tightening clamp (201) clamps the lower part of the product and pulls down, tightening the buckle in the middle of the button product.

10. The method for tightening a key product according to claim 9, characterized in that: When the product tensioning force required is greater than the tensioning mechanism's own weight, a counterweight (2013) is installed on one side of the tensioning jaw mounting plate (2010) to increase the product tensioning force; When the required tightening force of the product is less than the weight of the tightening mechanism itself, an adjusting bolt (208) is installed on the tightening installation base (2014), a compression spring (207) is arranged at the upper end of the adjusting bolt (208), and a spring top block (206) is arranged at the upper end of the compression spring (207), and the spring top block (206) is fixedly connected to the first clamping jaw mounting plate (202). By adjusting the height of the adjusting bolt (208), the compression amount of the compression spring (207) is adjusted to balance the weight of the tightening mechanism itself, thereby reducing the product tightening force.

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