Hardware machining clamp

Abstract

The invention relates to the technical field of welding clamps, and particularly discloses a hardware machining clamp which comprises a workbench and expanding and moving assemblies, the expanding and moving assemblies are symmetrically arranged above the workbench, each expanding and moving assembly comprises a sliding rail, a first screw rod and a sliding connecting seat, the sliding rails are semicircular, sliding arc grooves are formed in the outer sides of the sliding rails, and the first screw rods are arranged in the sliding arc grooves; the sliding connection seats are arranged on the inner sides of the sliding arc grooves in a vertically symmetrical and sliding mode, the sliding connection seats can slide along the sliding arc grooves formed in the outer sides of the sliding rails by rotating the first screws through the arrangement of the sliding rails and the first screws, and therefore the two clamp assemblies arranged along the vertical axis can get away from each other or get close to each other; according to the hardware machining clamp, different parts of hardware can be conveniently clamped, clamping work can be conducted under the condition that the clamp is not replaced, the machining precision of the hardware is improved, and therefore the machining quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of welding fixtures, and in particular to a hardware processing fixture. Background Art

[0002] Hardware refers to tools made of gold, silver, copper, iron, tin and other metals through processing and casting. It has many uses such as fixing things, processing things, and decoration. When processing and welding hardware, it is often necessary to use a clamp to clamp and fix the hardware to prevent the hardware from moving during welding, thereby reducing welding errors. Different parts of hardware have different shapes, such as square or cylindrical. When welding different parts, it is necessary to replace and disassemble the current clamp, and then replace and fix the new clamp. Replacing the clamp will increase the positioning error and assembly error, affecting the processing quality of the hardware. Summary of the invention

[0003] The present application provides a hardware processing fixture, which solves the problem in the prior art that when welding different parts, the current fixture needs to be replaced and disassembled, and then a new fixture needs to be replaced and fixed. Replacing the fixture leads to increased positioning errors and assembly errors, which affects the processing quality of the hardware. The application achieves that the same fixture can be used to clamp different parts of the hardware, and the clamping work can be performed without replacing the fixture, thereby reducing positioning errors and assembly errors and improving the processing quality of the hardware.

[0004] The present application provides a hardware processing fixture, comprising: Workbench; An expansion and shifting assembly, wherein the expansion and shifting assembly is symmetrically arranged above the workbench; The expansion and shifting assembly includes a sliding track, a first screw rod and a sliding seat. The sliding track is arranged in a semicircle. A sliding arc groove is opened on the outer side of the sliding track. The sliding seat is symmetrically slidably arranged on the inner side of the sliding arc groove up and down. A connecting arm is rotatably arranged on the end of the sliding seat. A bearing clamp is fixedly arranged on the other end of the connecting arm. A contact clamp shell is fixedly arranged on the outer side of the bearing clamp. A movable connecting ring is threadedly connected to the outer side of the first screw rod. An expansion and shifting connecting arm is symmetrically rotatably arranged on the outer side of the movable connecting ring. The expansion and shifting connecting arm is rotatably arranged on the other end of the sliding seat.

[0005] Furthermore, a clamp assembly is provided on the side where the expansion and displacement assemblies are close to each other, and four groups of the clamp assemblies are provided, and every two groups of the clamp assemblies are provided on the same vertical axis. The clamp assembly also includes a first connecting arm, and the first connecting arm is symmetrically rotatably provided on one side of the supporting clamp, and a force spring is fixedly provided on one side of the supporting clamp, and a second connecting arm is rotatably provided on the other end of the first connecting arm, and a connecting plate is rotatably provided on the other end of the second connecting arm, and the connecting plate is fixedly provided on the other end of the force spring, and a fixed frame plate is slidably provided on the other side of the connecting plate.

[0006] Furthermore, the connecting boom is slidably arranged on the top end of the receiving connecting plate, a fixed seat is fixedly arranged on the inner side of the sliding track, and the fixed seat is detachably arranged on the inner side of the fixed frame plate.

[0007] Furthermore, it also includes an auxiliary clamping structure, which is arranged on the outer side of the sliding track, and the auxiliary clamping structure includes a contact clamping platform, and the contact clamping platform is located between the two bearing clamping platforms arranged along the vertical axis, and a transverse screw shell is fixedly arranged on one side of the contact clamping platform, and the inner side of the transverse screw shell is threadedly connected to a second screw, and the second screw is fixedly arranged at one end of the first screw, and the second screw passes through and is rotatably arranged on one side of the fixed seat, and the outer side of the transverse screw shell is symmetrically slidably connected with a fixed guide rail, and the fixed guide rail is detachably arranged on the inner side of the fixed frame plate. When the clamp assemblies move away from each other, the two groups of auxiliary clamping structures will also move away, so that the contact clamping shell in the clamp assembly and the contact clamping platform in the auxiliary clamping structure will form a curve, which is convenient for clamping and fixing cylindrical hardware, so that the clamp can clamp square or cylindrical ones, thereby reducing the assembly error of hardware.

[0008] Furthermore, a reinforcing vertical plate is detachably provided on the other side of the sliding track, and the first screw rod penetrates and is rotatably provided on one side of the reinforcing vertical plate.

[0009] Furthermore, an adjusting screw shell is symmetrically rotatably provided at the top of the workbench, a driving screw is threadedly connected to the inner side of the adjusting screw shell, a movable platform is fixedly provided at one end of the driving screw, a connecting frame is fixedly provided at one side of the top of the movable platform, the connecting frame is detachably provided on one side of the reinforcing vertical plate, and the movable platform is slidably provided at the top of the workbench.

[0010] The top of the workbench is provided with a notch, and the top of the notch is provided with a lifting platform, and the two sides of the bottom of the lifting platform are inclined, and the bottom of the inclined surface is provided with a sliding track, and a movable top platform is slidably provided on both sides of the bottom end of the lifting platform, and the side of the movable top platform close to each other is rotatably provided with an adjusting screw, and a driving gear is fixedly connected between the adjusting screws, and a driving gear plate is meshed on the outer side of the driving gear, and the bottom end of the driving gear plate is fixedly connected to the electric telescopic rod through a connecting platform, and the electric telescopic rod is fixedly provided at the bottom end of the workbench. Through the setting of the lifting platform, the adjusting screw can be rotated under the rotation of the driving gear, so that the two movable top platforms move away from or approach each other, thereby adjusting the height of the top supporting platform of the lifting platform from the workbench, which is convenient for adapting to hardware of different sizes, thereby lifting the hardware and making the clamping work more stable.

[0011] Furthermore, a supporting platform is detachably provided at the top of the lifting platform, a sliding groove is provided on the end surface of the movable top platform in contact with the lifting platform, the movable top platform passes through and is slidably provided on the top of the workbench, and a fixed hanging plate is rotatably provided on the outer side of the adjusting screw, and the fixed hanging plate is fixedly provided on the bottom end of the workbench.

[0012] Furthermore, a control panel is fixedly provided on one side of the workbench, and the control panel is electrically connected to the electric telescopic rod.

[0013] The technical solution provided by this application has at least the following technical effects or advantages: 1. The present application arranges a sliding track and a first screw rod, and rotates the first screw rod so that the sliding seat can slide along the sliding arc groove provided on the outer side of the sliding track, so that the two groups of clamp assemblies arranged along the vertical axis will move away from or close to each other, which is convenient for clamping different parts of the hardware. The clamping work can be performed without changing the clamp, thereby improving the processing accuracy of the hardware and thus improving the processing quality.

[0014] 2. In the present application, by setting up the auxiliary clamping structure, when the clamp assemblies move away from each other, the two groups of auxiliary clamping structures will also move away, so that the contact clamping shell in the clamp assembly and the contact clamping platform in the auxiliary clamping structure will form a curve, which is convenient for clamping and fixing cylindrical hardware, so that the clamp can clamp square or cylindrical shapes, thereby reducing the assembly error of the hardware.

[0015] 3. In the present application, by setting up a lifting platform, the adjusting screw can be rotated under the rotation drive of the driving gear, so that the two movable top platforms move away from or closer to each other, thereby adjusting the height of the top support platform of the lifting platform from the workbench, so as to adapt to hardware of different sizes, thereby lifting the hardware and making the clamping work more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of an implementation method of the present application.

[0017] Figure 2 It is a schematic diagram of the upper and lower axonometric three-dimensional structure of an implementation method of the present application.

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 4 It is a schematic diagram of the combined structure of the adjustable screw shell and part of the expansion and displacement assembly in the implementation manner of the present application.

[0020] Figure 5 It is a schematic diagram of the combined structure of a partial expansion component and a partial clamp component in an embodiment of the present application.

[0021] Figure 6 It is a schematic diagram of the combined structure of some expansion and displacement components and clamp components in the implementation manner of the present application.

[0022] Figure 7 It is a schematic diagram of the combined structure of part of the expansion and displacement components and the auxiliary clamping structure in the implementation manner of the present application.

[0023] In the figure: 1, workbench; 101, control panel; 2, lifting support platform; 201, support platform; 202, mobile top platform; 203, adjusting screw; 204, driving gear; 205, driving gear plate; 206, connecting platform; 207, electric telescopic rod; 208, fixed hanging plate; 3, adjusting screw shell; 301, driving screw; 302, mobile connecting platform; 303, receiving connecting frame; 4, expansion and shifting assembly; 401, strengthening vertical plate; 402, sliding track; 403, sliding arc groove; 404, fixed seat; 405, first screw; 406, movable ring; 407, expansion arm; 408, sliding seat; 409, connecting arm; 5, clamp assembly; 501, bearing clamp; 502, contact clamp shell; 503, force spring; 504, first connecting arm; 505, second connecting arm; 506, connecting plate; 507, fixed frame plate; 6, auxiliary clamp structure; 601, contact clamp; 602, transverse screw shell; 603, second screw; 604, fixed guide rail. DETAILED DESCRIPTION

[0024] The embodiment of the present application discloses a hardware processing fixture. By setting a sliding track 402 and a first screw 405, the first screw 405 is rotated so that the sliding seat 408 can slide along the sliding arc groove 403 opened on the outer side of the sliding track 402, so that the two groups of clamp assemblies 5 arranged along the vertical axis will move away from or close to each other, which is convenient for clamping different parts of the hardware. The clamping work can be performed without changing the clamp, thereby improving the processing accuracy of the hardware and thus improving the processing quality.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Example 1: Reference Figure 1 , Figure 4 , Figure 5 and Figure 7 A hardware processing fixture disclosed in an embodiment of the present application includes an expansion and shifting component 4, which is symmetrically arranged above a workbench 1. The expansion and shifting component 4 includes a sliding track 402, a first screw rod 405 and a sliding seat 408. The sliding track 402 is arranged in a semicircle, and a sliding arc groove 403 is opened on the outer side of the sliding track 402. The sliding seat 408 is symmetrically slidably arranged on the inner side of the sliding arc groove 403 up and down, and a connecting arm 409 is rotatably arranged at the end of the sliding seat 408, and a bearing clamping platform 501 is fixedly arranged on the other end of the connecting arm 409, and a contact clamping shell 502 is fixedly arranged on the outer side of the bearing clamping platform 501, and a movable connecting ring 406 is threadedly connected to the outer side of the first screw rod 405, and an expansion and shift connecting arm 407 is symmetrically rotatably arranged on the outer side of the movable connecting ring 406, and the expansion and shift connecting arm 407 is rotatably arranged on the other end of the sliding seat 408.

[0027] By rotating the first screw 405 in the expansion assembly 4, the movable ring 406 can move closer to the fixed seat 404. At this time, the angle between the two expansion arms 407 will increase, and push the two sliding seats 408 away from each other. The connecting arm 409 will also move away from each other under the drive of the sliding seat 408, and at the same time, an angle will be formed between the expansion arm 407 and the sliding seat 408. Since the sliding seat 408 and the connecting arm 409 are rotatably connected, the connecting arm 409 will always remain in a horizontal state.

[0028] Therefore, without replacing other clamps, hardware parts of different shapes or other hardware can be clamped and fixed, reducing positioning and assembly errors and improving the processing quality of hardware.

[0029] Reference Figure 1 , Figure 5 and Figure 6A clamp assembly 5 is arranged on the side where the expansion and displacement assemblies 4 are close to each other. There are four groups of clamp assemblies 5, and every two groups of clamp assemblies 5 are arranged on the same vertical axis. The clamp assembly 5 also includes a first connecting arm 504, and the first connecting arm 504 is symmetrically rotatably arranged on one side of the supporting clamping platform 501, and a force spring 503 is fixedly arranged on one side of the supporting clamping platform 501. The other end of the first connecting arm 504 is rotatably arranged with a second connecting arm 505, and the other end of the second connecting arm 505 is rotatably arranged with a connecting plate 506, and the connecting plate 506 is fixedly arranged on the other end of the force spring 503, and a fixed frame plate 507 is slidably arranged on the other side of the connecting plate 506.

[0030] When the connecting arms 409 move away from each other, the two groups of clamp assemblies 5 will be driven away from each other at the same time. The supporting clamp 501 and the contact clamp shell 502 in the clamp assembly 5 will move closer to the sliding track 402 due to the state change of the sliding seat 408 and the connecting arm 409, and the angle between the first connecting arm 504 and the second connecting arm 505 in the clamp assembly 5 will gradually decrease, and the force spring 503 will be compressed to adapt to the state change of the supporting clamp 501 and the contact clamp shell 502, and make the connection between the supporting clamp 501 and the connecting plate 506 more stable.

[0031] The outer side of the contact clamping shell 502 is provided with anti-skid patterns, which are arranged in a curved shape to prevent the clamped hardware from sliding, thereby further improving the stability of the contact clamping shell 502 when clamping the hardware. The connecting arm 409 is slidably arranged on the top of the connecting plate 506 , and a fixed seat 404 is fixedly arranged on the inner side of the sliding track 402 . The fixed seat 404 is detachably arranged on the inner side of the fixed frame plate 507 .

[0032] In this way, when the height of the connecting arm 409 changes, the connecting arm 409 is still in a horizontal state, which is convenient for synchronously driving the bearing clamping platform 501 to change its position.

[0033] Reference Figure 1 and Figure 4 An adjusting screw shell 3 is symmetrically rotated at the top of the workbench 1, and a driving screw 301 is threadedly connected to the inner side of the adjusting screw shell 3. A mobile platform 302 is fixedly arranged at one end of the driving screw 301, and a connecting frame 303 is fixedly arranged on one side of the top of the mobile platform 302. The connecting frame 303 is detachably arranged on one side of the reinforcing vertical plate 401, and the mobile platform 302 is slidably arranged on the top of the workbench 1.

[0034] Rotate the adjusting screw shell 3 so that the driving screw 301 can move, and drive the movable platform 302 to move together, so that the movable platforms 302 on both sides are close to each other, thereby driving the expansion component 4, the clamp component 5 and the auxiliary clamping structure 6 to move together, and clamp and fix the hardware through the contact clamp shell 502 and the contact clamp platform 601.

[0035] Reference Figure 1 and Figure 7 , also includes an auxiliary clamping structure 6, which is arranged on the outer side of the sliding track 402, and the auxiliary clamping structure 6 includes a contact clamping platform 601, and the contact clamping platform 601 is located between two bearing clamping platforms 501 arranged along the vertical axis. A transverse screw shell 602 is fixedly arranged on one side of the contact clamping platform 601, and the inner side of the transverse screw shell 602 is threadedly connected with a second screw 603, and the second screw 603 is fixedly arranged on one end of the first screw 405. The second screw 603 penetrates and is rotatably arranged on one side of the fixed seat 404, and the outer side of the transverse screw shell 602 is symmetrically slidably connected with a fixed guide rail 604, and the fixed guide rail 604 is detachably arranged on the inner side of the fixed frame plate 507.

[0036] When the first screw 405 rotates, it will also drive the second screw 603 in the auxiliary clamping structure 6 to rotate. The rotation of the second screw 603 makes the transverse screw shell 602 gradually approach the sliding track 402, so that the contact clamping platform 601 will be driven to move. The speed at which the contact clamping platform 601 approaches the sliding track 402 is greater than the speed at which the supporting clamping platform 501 approaches the sliding track 402. In this way, during adjustment, a curve can be formed on the same side of the supporting clamping platform 501 and the contact clamping platform 601, which is convenient for clamping and fixing cylindrical hardware or cylindrical parts.

[0037] Example 2: Reference Figure 2 and Figure 3 A notch is provided at the top of the workbench 1, and a lifting platform 2 is arranged at the top of the notch. The bottom ends of the lifting platform 2 are provided with inclined surfaces on both sides, and sliding tracks are arranged at the bottom ends of the inclined surfaces. Moving top platforms 202 are slidably arranged on both sides of the bottom end of the lifting platform 2, and an adjusting screw 203 is rotatably arranged on one side of the moving top platforms 202 that are close to each other. A driving gear 204 is fixedly connected between the adjusting screws 203, and a driving tooth plate 205 is meshedly arranged on the outer side of the driving gear 204. The bottom end of the driving tooth plate 205 is fixedly connected to an electric telescopic rod 207 through a connecting platform 206. The electric telescopic rod 207 is fixedly arranged at the bottom end of the workbench 1, and a control panel 101 is fixedly arranged on one side of the workbench 1, and the control panel 101 is electrically connected to the electric telescopic rod 207.

[0038] When clamping the hardware, the height of the lifting platform 2 can be adjusted according to the size of the hardware. If the size of the hardware is small, the lifting platform 2 is raised, otherwise, the lifting platform 2 is lowered. When lowering the lifting platform 2, the control panel 101 is used to control the electric telescopic rod 207 to shorten, so that the connecting platform 206 can drive the driving gear plate 205 to move and drive the driving gear 204 to rotate. The rotation of the driving gear 204 drives the two adjusting screws 203 to rotate, so that the movable top platform 202 can move away from each other, so that the lifting platform 2 can be lowered and slowly enter the gap, and the support platform 201 can also be lowered synchronously. The position of the support platform 201 is the center point between the clamp assemblies 5, so that the clamp assemblies 5 on both sides can clamp the hardware on the top of the support platform 201, and the support platforms 201 of different shapes can be replaced according to the appearance of the hardware to lift the hardware.

[0039] It should be noted that a support platform 201 is detachably provided on the top of the lifting platform 2, a sliding groove is provided on the end surface of the movable top platform 202 in contact with the lifting platform 2, the movable top platform 202 passes through and is slidably provided on the top of the workbench 1, and a fixed hanging plate 208 is rotatably provided on the outer side of the adjusting screw 203, and the fixed hanging plate 208 is fixedly provided on the bottom end of the workbench 1.

[0040] The supporting platform 201 of different shapes can be replaced according to the appearance of the hardware to support the hardware, thereby achieving a more stable clamping effect.

[0041] Working principle: When clamping the square part of the hardware, the clamp can be adjusted to the state shown in the figure. The contact clamp housing 502 and the contact clamp platform 601 on both sides are arranged on the same vertical axis, so that the square part can be clamped and fixed; When it is necessary to clamp a cylindrical part or a cylindrical hardware, the first screw rod 405 in the expansion and displacement assembly 4 is rotated so that the movable ring 406 can move closer to the fixed seat 404. At this time, the angle between the two expansion and displacement connecting arms 407 will increase, and the two sliding seats 408 will be pushed away from each other. The connecting arm 409 will also move away from each other under the drive of the sliding seat 408, and at the same time, an angle will be formed between the expansion and displacement connecting arm 407 and the sliding seat 408. Since the sliding seat 408 and the connecting arm 409 are rotatably connected, the connecting arm 40 9 will always maintain a horizontal state and drive the two sets of clamp assemblies 5 to move away from each other at the same time. The bearing clamp 501 and the contact clamp shell 502 in the clamp assembly 5 will move closer to the sliding track 402 due to the state change of the sliding seat 408 and the connecting arm 409, and the angle between the first connecting arm 504 and the second connecting arm 505 in the clamp assembly 5 will gradually decrease, and the force spring 503 will be compressed, so as to adapt to the state change of the bearing clamp 501 and the contact clamp shell 502, and make the connection between the bearing clamp 501 and the connecting plate 506 more stable. It should be noted that when the state of the connecting arm 409 changes, it will move on the top of the receiving connecting plate 506, so that when the connecting arm 409 moves up and down, it can drive the receiving connecting plate 506 to move together; The rotation of the first screw 405 will drive the second screw 603 in the auxiliary clamping structure 6 to rotate, and the rotation of the second screw 603 makes the transverse screw shell 602 gradually approach the sliding track 402, so that the contact clamping platform 601 will be driven to move, and the speed of the contact clamping platform 601 approaching the sliding track 402 is greater than the speed of the bearing clamping platform 501 approaching the sliding track 402. In this way, during adjustment, the same side of the bearing clamping platform 501 and the contact clamping platform 601 can form a curve, which is convenient for clamping and fixing cylindrical hardware or cylindrical parts, and the clamp assembly 5 on the other side is also adjusted using the same operation method; After the adjustment is completed, the height of the lifting platform 2 is adjusted according to the size of the hardware. If the size of the hardware is small, the lifting platform 2 is raised, otherwise, the lifting platform 2 is lowered. When lowering the lifting platform 2, the control panel 101 controls the electric telescopic rod 207 to shorten, so that the connecting platform 206 can drive the driving gear plate 205 to move, and drive the driving gear 204 to rotate. The rotation of the driving gear 204 drives the two adjusting screws 203 to rotate, so that the movable top platform 202 can move away from each other, so that the lifting platform 2 can be lowered and slowly enter the gap, and the support platform 201 can also be lowered synchronously. The position of the support platform 201 is the center point between the clamp assemblies 5, so that the clamp assemblies 5 on both sides can clamp the hardware on the top of the support platform 201. According to the shape of the hardware, the support platform 201 of different shapes can be replaced to lift the hardware, thereby achieving a more stable clamping effect and improving the welding process quality; When performing the clamping work, the adjusting screw shell 3 is rotated so that the driving screw 301 can move, and the movable platform 302 is driven to move together, so that the movable platforms 302 on both sides are close to each other, thereby driving the expansion component 4, the clamp component 5 and the auxiliary clamping structure 6 to move together, and the hardware is clamped and fixed by the contact clamp shell 502 and the contact clamp platform 601, so that other clamps do not need to be replaced for hardware of different shapes and parts, thereby reducing positioning errors and assembly errors and improving processing quality.

[0042] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0043] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A hardware processing fixture, characterized in that: include: Workbench (1); An expansion and shifting assembly (4), wherein the expansion and shifting assembly (4) is symmetrically arranged above the workbench (1); The expansion and displacement assembly (4) comprises a sliding track (402), a first screw rod (405) and a sliding seat (408); the sliding track (402) is semicircular; a sliding arc groove (403) is provided on the outer side of the sliding track (402); the sliding seat (408) is symmetrically slidably arranged on the inner side of the sliding arc groove (403) in an up-and-down manner; a connecting arm (409) is rotatably arranged at the end of the sliding seat (408); a bearing clamp (501) is fixedly arranged at the other end of the connecting arm (409); a contact clamp shell (502) is fixedly arranged at the outer side of the bearing clamp (501); a movable connecting ring (406) is threadedly connected to the outer side of the first screw rod (405); an expansion and displacement connecting arm (407) is symmetrically rotatably arranged on the outer side of the movable connecting ring (406); and the expansion and displacement connecting arm (407) is rotatably arranged at the other end of the sliding seat (408).

2. A hardware processing fixture as claimed in claim 1, characterized in that: A clamp assembly (5) is arranged on the side where the expansion and displacement assemblies (4) are close to each other, and the clamp assembly (5) is arranged in four groups, and each two groups of the clamp assembly (5) are arranged on the same vertical axis. The clamp assembly (5) also includes a first connecting arm (504), and the first connecting arm (504) is symmetrically rotatably arranged on one side of the supporting clamping platform (501), and a force spring (503) is fixedly arranged on one side of the supporting clamping platform (501), and a second connecting arm (505) is rotatably arranged on the other end of the first connecting arm (504), and a connecting plate (506) is rotatably arranged on the other end of the second connecting arm (505), and the connecting plate (506) is fixedly arranged on the other end of the force spring (503), and a fixed frame plate (507) is slidably arranged on the other side of the connecting plate (506).

3. A hardware processing fixture as claimed in claim 1, characterized in that: The connecting arm (409) is slidably arranged on the top end of the receiving connecting plate (506), and a fixed seat (404) is fixedly arranged on the inner side of the sliding track (402). The fixed seat (404) is detachably arranged on the inner side of the fixed frame plate (507).

4. A hardware processing fixture as claimed in claim 1, characterized in that: The auxiliary clamping structure (6) is arranged on the outer side of the sliding track (402), and the auxiliary clamping structure (6) includes a contact clamping platform (601). The contact clamping platform (601) is located between the two supporting clamping platforms (501) arranged along the vertical axis. A transverse screw shell (602) is fixedly arranged on one side of the contact clamping platform (601). The inner side of the transverse screw shell (602) is threadedly connected with a second screw rod (603). The second screw rod (603) is fixedly arranged on one end of the first screw rod (405). The second screw rod (603) passes through and is rotatably arranged on one side of the fixed seat (404). The outer side of the transverse screw shell (602) is symmetrically slidably connected with a fixed guide rail (604). The fixed guide rail (604) is detachably arranged on the inner side of the fixed frame plate (507).

5. A hardware processing fixture as claimed in claim 1, characterized in that: A reinforcing vertical plate (401) is detachably provided on the other side of the sliding track (402), and the first screw rod (405) penetrates and is rotatably provided on one side of the reinforcing vertical plate (401).

6. A hardware processing fixture as claimed in claim 1, characterized in that: An adjusting screw shell (3) is symmetrically rotatably arranged at the top of the workbench (1); a driving screw rod (301) is threadedly connected to the inner side of the adjusting screw shell (3); a movable platform (302) is fixedly arranged at one end of the driving screw rod (301); a receiving connecting frame (303) is fixedly arranged at one side of the top of the movable platform (302); the receiving connecting frame (303) is detachably arranged at one side of the reinforcing vertical plate (401); and the movable platform (302) is slidably arranged at the top of the workbench (1).

7. A hardware processing fixture as claimed in claim 1, characterized in that: The top of the workbench (1) is provided with a notch, and a lifting platform (2) is arranged at the top of the notch. The bottom of the lifting platform (2) is provided with inclined surfaces on both sides, and the bottom of the inclined surfaces is provided with sliding tracks. The bottom of the lifting platform (2) is provided with movable top platforms (202) on both sides of the bottom of the lifting platform (2) for sliding. The sides of the movable top platforms (202) that are close to each other are rotatably provided with adjusting screws (203). The adjusting screws (203) are fixedly connected with driving gears (204). The outer sides of the driving gears (204) are meshed with driving tooth plates (205). The bottom end of the driving tooth plates (205) is fixedly connected to an electric telescopic rod (207) through a connecting platform (206). The electric telescopic rod (207) is fixedly provided at the bottom of the workbench (1).

8. A hardware processing fixture as claimed in claim 7, characterized in that: The top of the lifting platform (2) is detachably provided with a supporting platform (201); the end surface of the movable top platform (202) in contact with the lifting platform (2) is provided with a slide groove; the movable top platform (202) penetrates and is slidably provided on the top of the workbench (1); the outer side of the adjusting screw (203) is rotatably provided with a fixed hanging plate (208); the fixed hanging plate (208) is fixedly provided on the bottom end of the workbench (1).

9. A hardware processing fixture as claimed in claim 1, characterized in that: A control panel (101) is fixedly provided on one side of the workbench (1), and the control panel (101) is electrically connected to the electric telescopic rod (207).

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