Flanging limiting tool for assembling door outer ring

Abstract

The invention relates to the technical field of door outer ring machining, and provides a welt limiting tool for door outer ring assembling, which comprises a workbench, and a square groove is formed in the top of the workbench. According to the device, a motor is controlled to be started through a controller, two clamping plates can oppositely move along the outer surface of a two-way lead screw, an outer door ring is clamped and fixed, a piston rod is synchronously pushed and extruded through a push plate, gas in a hollow cylinder enters a compression cavity of a pneumatic telescopic rod through a connecting pipe, the pneumatic telescopic rod stretches, and the outer door ring is clamped and fixed; the gear can drive the rotating rod, the L-shaped clamping block and the second elastic rubber pad to rotate, the second elastic rubber pad makes contact with the outer door ring and is compressed to a certain degree, the outer door ring abuts against the L-shaped plate, in this way, the clamping and fixing stability of the outer door ring can be improved, the situation that the outer door ring slides and deviates in the assembling and machining process is prevented, and the service life of the outer door ring is prolonged. Therefore, the welt assembly effect of parts of the door outer ring is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of door outer ring processing, and in particular to an edge-adhering and limiting tooling for assembling a door outer ring. Background Art

[0002] In the door structure, the outer circle of the door frame is an important part supporting the door leaf. The outer circle of the door frame refers to the outer part of the door frame, that is, the outside of the connecting structure between the door leaf and the wall. This part is usually used to fix the door leaf and plays a role in decoration and protection of the wall corners.

[0003] In the prior art, during the assembly process of the door outer ring, it is necessary to use a clamping tool to clamp and fix the door outer ring to facilitate the assembly of other components on the door outer ring. During the assembly process, since some components need to be installed by screws, it is necessary to use a drilling device to drill holes in the door outer ring, which may cause the door outer ring to vibrate, which may cause the door outer ring to slide and deviate, thereby causing errors in the position of the drilling holes, thereby affecting the assembly effect of some components of the door outer ring. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that during the assembly process of the door outer ring, it is necessary to use a clamping tool to clamp and fix the door outer ring to facilitate the assembly of other components on the door outer ring. During the assembly process, since some components need to be installed by screws, it is necessary to use a drilling device to drill holes in the door outer ring, which may cause the door outer ring to vibrate and may cause the door outer ring to slide and deviate, which may cause errors in the position of the drilling holes, thereby affecting the assembly effect of some components of the door outer ring.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a kind of edge limiting tool for assembling the outer ring of a door, comprising: a workbench, a square groove is opened on the top of the workbench, a two-way screw is rotatably connected to the opposite side of the inner wall of the square groove, the outer surface of the two-way screw is symmetrically threadedly connected with two clamping plates, one side of the workbench is fixedly connected with a motor, the output end of the motor is fixedly connected to one end of the two-way screw, the top of the workbench is symmetrically fixedly connected with two fixed blocks, the opposite side of the two fixed blocks are symmetrically fixedly connected with two support rods, the outer surfaces of the two support rods are symmetrically slidably connected with two T-shaped plates, the top of the T-shaped plate is fixedly connected with an L-shaped plate, the side of the T-shaped plate close to the top is fixedly connected with a U-shaped block, and the opposite side of the two arms of the U-shaped block rotates A rotating rod is connected, and an L-shaped clamping block is fixedly connected to the outer surface of the rotating rod, one end of the rotating rod is fixedly connected to a gear, and one side of the U-shaped block is fixedly connected to a guide rail 2 through a support rod, and a rack is slidably connected to the inside of the guide rail 2, and the rack is meshed with the gear, and two pneumatic telescopic rods are symmetrically fixedly connected to the top of the workbench, one end of the pneumatic telescopic rod is fixedly connected to guide rail 1, and the rack is slidably connected to guide rail 1, and the outer surface of the pneumatic telescopic rod near the bottom is fixedly connected with a connecting pipe, and two hollow cylinders are symmetrically fixedly connected to the top of the workbench, and a piston rod is sealed and slidably connected to the inside of the hollow cylinder, and a push plate is fixedly connected to the opposite side of one of the clamping plates near the bottom, and the push plate is fixedly connected to the piston rod, and the connecting pipe is fixedly connected to the hollow cylinder.

[0006] Preferably, one end of the connecting tube is connected to the interior of the hollow cylinder, and the other end of the connecting tube is connected to the compression chamber of the pneumatic telescopic rod.

[0007] Preferably, two guide rods are symmetrically fixedly connected to the top of the workbench, and a hanging ear is fixedly connected to one side of the guide rail, and the hanging ear is slidably connected to the guide rod.

[0008] Preferably, the outer surface of the clamping plate is slidably connected to the inside of the square groove, the width of the clamping plate is equal to the width of the square groove, and a plurality of anti-slip grooves are equidistantly formed on one side of the clamping plate close to the top.

[0009] Preferably, a connecting block is fixedly connected to the opposite side of the inner wall of the square groove, and the center of the connecting block is rotatably connected to a movable bar one via an axle rod, both ends of the top of the movable bar one are rotatably connected to a movable bar two via an axle rod, and one end of the top of the movable bar two is rotatably connected to the center of the bottom of the T-shaped plate via an axle rod.

[0010] Preferably, two compression springs are symmetrically arranged on the outer surface of the support rod, and the compression springs are fixedly connected to the T-shaped plate and the fixing block respectively.

[0011] Preferably, the opposite sides of the clamping plates close to the top are fixedly connected with a transverse plate, a plurality of guide grooves are equidistantly provided on one side of the transverse plate, and inner walls of the plurality of guide grooves are provided with an inclined surface.

[0012] Preferably, the opposite sides of the L-shaped plates are fixedly connected to limit strips, and one side of the limit strips is provided with a second inclined surface.

[0013] Preferably, one side of the L-shaped plate is fixedly connected to an elastic rubber pad 1, and one side of the L-shaped clamping block is fixedly connected to an elastic rubber pad 2.

[0014] Preferably, a handle is fixedly connected to the opposite side of the T-shaped plate close to the bottom.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] 1. The present invention controls the motor to start through a controller, so that its output shaft drives the bidirectional screw to rotate, and then, under the action of the bidirectional screw and the clamping plate thread cooperation, and under the cooperation of the square groove on the clamping plate limit guide, the two clamping plates can move toward each other along the outer surface of the bidirectional screw, and the distance between the two clamping plates gradually approaches, and the outer ring of the door is clamped and fixed, and synchronously through the movement of the clamping plate, the push plate can be driven to push the piston rod, so that the piston rod slides into the interior of the hollow cylinder, and the gas inside the hollow cylinder enters the compression chamber of the pneumatic telescopic rod through the connecting pipe, so that the air pressure inside the compression chamber is enhanced, so that the pneumatic telescopic rod The rod extends, pushing the guide rail 1 to move upward, and synchronously making the hanging ear slide upward along the outer surface of the guide rod, driving the rack to slide upward along the inside of the guide rail 2, and then under the action of the meshing of the rack and the gear, the gear can drive the rotating rod, the L-shaped clamping block and the elastic rubber pad 2 to rotate, so that the L-shaped clamping block rotates to the top of the outer ring of the door, and the elastic rubber pad 2 contacts the outer ring of the door and is compressed to a certain extent, so that the outer ring of the door is pressed against the L-shaped plate. This can improve the stability of the clamping and fixing of the outer ring of the door, prevent sliding and offset during the assembly process of the outer ring of the door, thereby ensuring the effect of the edge-to-edge assembly of some components of the outer ring of the door.

[0017] 2. The present invention, through the cooperation of the sliding connection between the guide rail 1 and the rack, when the T-shaped plate slides along the outer surface of the support rod, the rack can be driven to slide inside the guide rail 1 under the cooperation of the U-shaped block and the guide rail 2, so that the limit fixture can adapt to door outer rings of different widths and the rack and the gear can always remain in a meshing state.

[0018] 3. The present invention, by holding the handle with hands and pulling it to one side, makes the T-shaped plate slide along the outer surface of the support rod, and applies a pulling force to the movable bar two, so that the movable bar two drives the movable bar one to rotate, and synchronously makes the movable bar two rotate to an appropriate angle, so that the components of the movable bar one and the movable bar two are unfolded, and the two L-shaped plates are synchronously moved away from each other, and the two L-shaped plates move the same distance, and the compression spring is synchronously compressed, and then the outer ring of the door is placed on the L-shaped plate, and the handle is released, so that the two T-shaped plates are synchronously slid toward the middle under the reset force of the compression spring and with the cooperation of the movable bar one and the movable bar two, so that the two L-shaped plates clamp and fix the outer ring of the door, so that it is convenient to clamp and fix the outer ring of the door with different widths, and with the cooperation of the synchronous movement of the two L-shaped plates, the effect of the subsequent limit bar on limiting the L-shaped plate is guaranteed.

[0019] 4. In the present invention, the movement of the clamping plate can drive the cross plate to move toward the limit bar, so that the limit bar is inserted into the interior of the guide groove, and the inclined surface 2 of the limit bar contacts the inclined surface 1 of the guide groove, so that the limit bar is subjected to an action, and the two L-shaped plates can be moved toward the middle by an appropriate distance to squeeze the outer ring of the door, and the elastic rubber pad 1 is simultaneously compressed to a certain extent until the inclined surface 2 of the limit bar is separated from the inclined surface 1 of the guide groove. At this time, the limit bar is completely inserted into the interior of the guide groove, so that the L-shaped plate can be limited and fixed to prevent the outer ring of the door from moving during the assembly process, thereby further improving the stability of the limit tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic side view of the structure of an edge-adhering and limiting tooling for assembling an outer ring of a door provided by the present invention;

[0021] Figure 2 The invention provides a door outer ring assembly edge limiting tooling Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 3 The invention provides a door outer ring assembly edge limiting tooling Figure 1 The enlarged structural diagram at B in the middle;

[0023] Figure 4 A schematic diagram of a portion of the structure of an edge-adhering and limiting tooling for assembling a door outer ring provided by the present invention;

[0024] Figure 5 A schematic diagram of the front view structure of an edge-adhering and limiting tooling for assembling an outer ring of a door provided by the present invention;

[0025] Figure 6 A schematic diagram of the forward cross-sectional structure of an edge-adhering and limiting tooling for assembling an outer ring of a door provided by the present invention;

[0026] Figure 7 The present invention is a schematic diagram of the side cross-sectional structure of an edge-limiting tool for assembling a door outer ring provided by the present invention.

[0027] Legend:

[0028] 1. Workbench; 101. Square groove; 102. Bidirectional screw rod; 103. Clamping plate; 104. Motor; 2. Fixed block; 201. Support rod; 202. T-shaped plate; 203. L-shaped plate; 204. Handle; 205. Elastic rubber pad 1; 206. Compression spring; 3. Hollow cylinder; 301. Piston rod; 302. Push plate; 303. Connecting pipe; 304. Pneumatic telescopic rod; 305. Guide rail 1; 306. Hanging ear; 307. Guide rod; 308. Rack; 309. Guide rail 2; 310. U-shaped block; 311. Rotating rod; 312. Gear; 313. L-shaped clamping block; 314. Elastic rubber pad 2; 4. Horizontal plate; 401. Guide groove; 402. Limiting strip; 5. Connecting block; 501. Movable strip 1; 502. Movable strip 2. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Examples, such as Figure 1 - Figure 7As shown, the present invention provides a technical solution: a side-adhering limiting tool for assembling the outer ring of a door, comprising: a workbench 1, a square groove 101 is opened on the top of the workbench 1, a bidirectional screw rod 102 is rotatably connected to the opposite side of the inner wall of the square groove 101, and the outer surface of the bidirectional screw rod 102 is symmetrically threadedly connected with two clamping plates 103, a motor 104 is fixedly connected to one side of the workbench 1, and the output end of the motor 104 is fixedly connected to one end of the bidirectional screw rod 102, two fixed blocks 2 are symmetrically fixedly connected to the top of the workbench 1, two support rods 201 are symmetrically fixedly connected to the opposite side of the two fixed blocks 2, and two T-shaped plates 202 are symmetrically slidably connected to the outer surfaces of the two support rods 201, the top of the T-shaped plate 202 is fixedly connected with an L-shaped plate 203, and the side of the T-shaped plate 202 close to the top is fixedly connected with a U-shaped block 310, and the opposite side of the two arms of the U-shaped block 310 is rotatably connected with a rotating rod 311, and the rotating rod 312 is rotatably connected to the rotating rod 313. An L-shaped clamping block 313 is fixedly connected to the outer surface of 11, a gear 312 is fixedly connected to one end of the rotating rod 311, a guide rail 2 309 is fixedly connected to one side of the U-shaped block 310 through a support rod, a rack 308 is slidably connected inside the guide rail 2 309, the rack 308 is meshed with the gear 312, two pneumatic telescopic rods 304 are symmetrically fixedly connected to the top of the workbench 1, one end of the pneumatic telescopic rod 304 is fixedly connected to the guide rail 1 305, the rack 308 is slidably connected to the guide rail 1 305, a connecting pipe 303 is fixedly connected to the outer surface of the pneumatic telescopic rod 304 near the bottom, two hollow cylinders 3 are symmetrically fixedly connected to the top of the workbench 1, a piston rod 301 is sealed and slidably connected to the inside of the hollow cylinder 3, a push plate 302 is fixedly connected to the opposite side of one of the clamping plates 103 near the bottom, the push plate 302 is fixedly connected to the piston rod 301, and the connecting pipe 303 is fixedly connected to the hollow cylinder 3.

[0031] Further, such as Figure 1 - Figure 7 As shown, one end of the connecting tube 303 is connected to the interior of the hollow cylinder 3, and the other end of the connecting tube 303 is connected to the compression chamber of the pneumatic telescopic rod 304. Through the above-mentioned arrangement, when the piston rod 301 slides into the interior of the hollow cylinder 3, the gas inside the hollow cylinder 3 can enter the compression chamber of the pneumatic telescopic rod 304 through the connecting tube 303, so that the air pressure in the compression chamber of the pneumatic telescopic rod 304 is enhanced, thereby allowing the pneumatic telescopic rod 304 to extend. Conversely, when the piston rod 301 slides outward along the interior of the hollow cylinder 3, the air pressure inside the hollow cylinder 3 is reduced, so that the gas in the compression chamber of the pneumatic telescopic rod 304 enters the interior of the hollow cylinder 3 through the connecting tube 303, so that the air pressure in the compression chamber of the pneumatic telescopic rod 304 is reduced, thereby causing the pneumatic telescopic rod 304 to contract.

[0032] Further, such as Figure 1 - Figure 7As shown, two guide rods 307 are symmetrically fixedly connected to the top of the workbench 1, and a lug 306 is fixedly connected to one side of the guide rail 305. The lug 306 is slidably connected to the guide rod 307. Through the cooperation of the guide rod 307 and the lug 306, the stability of the up and down movement of the guide rail 305 can be improved.

[0033] Further, such as Figure 1 - Figure 7 As shown, the outer surface of the clamping plate 103 is slidably connected to the inside of the square groove 101, the width of the clamping plate 103 is equal to the width of the square groove 101, and a plurality of anti-skid grooves are equidistantly provided on one side of the clamping plate 103 close to the top. Through the above-mentioned arrangement, the clamping plate 103 can slide inside the square groove 101 but cannot rotate. Through the arrangement of the anti-skid grooves, the friction between the clamping plate 103 and the outer ring of the door is increased.

[0034] Further, such as Figure 1 - Figure 7 As shown, a connecting block 5 is fixedly connected to the opposite side of the inner wall of the square groove 101, and a movable bar 1 501 is rotatably connected to the center of the connecting block 5 through an axle rod. Both ends of the top of the movable bar 1 501 are rotatably connected to the movable bar 2 502 through an axle rod, and one end of the top of the movable bar 2 502 is rotatably connected to the center of the bottom of the T-shaped plate 202 through an axle rod. By applying a pulling force to the movable bar 2 502, the movable bar 2 502 drives the movable bar 1 501 to rotate, and the movable bar 2 502 is rotated to an appropriate angle synchronously, so that the components of the movable bars 1 501 and 502 are unfolded, and the two L-shaped plates 203 are synchronously moved away from each other, and the two L-shaped plates 203 move the same distance.

[0035] Further, such as Figure 1 - Figure 7 As shown, two compression springs 206 are symmetrically arranged on the outer surface of the support rod 201, and the compression springs 206 are fixedly connected to the T-shaped plate 202 and the fixed block 2 respectively. Under the resetting force of the compression springs 206, when the outer ring of the door is removed, a thrust can be applied to the T-shaped plate 202 to reset the T-shaped plate 202.

[0036] Further, such as Figure 1 - Figure 7 As shown, the opposite sides of the clamping plate 103 near the top are fixedly connected with a horizontal plate 4, and a plurality of guide grooves 401 are equidistantly provided on one side of the horizontal plate 4, and the inner walls of the plurality of guide grooves 401 are provided with a slope. Through the above arrangement, it can adapt to door outer rings of different widths and achieve a certain clamping effect.

[0037] Further, such as Figure 1 - Figure 7As shown, the opposite sides of the L-shaped plate 203 are fixedly connected to the limiting strip 402, and one side of the limiting strip 402 is provided with a second slope. By making the second slope of the limiting strip 402 contact with the first slope of the guide groove 401, the limiting strip 402 is acted upon, so that the two L-shaped plates 203 can be moved toward the middle by an appropriate distance to squeeze the outer circle of the door.

[0038] Further, such as Figure 1 - Figure 7 As shown, one side of the L-shaped plate 203 is fixedly connected with an elastic rubber pad 1 205, and one side of the L-shaped clamping block 313 is fixedly connected with an elastic rubber pad 2 314. Due to the elasticity of the elastic rubber pad 1 205 and the elastic rubber pad 2 314, the elastic rubber pad 1 205 and the elastic rubber pad 2 314 can be compressed to a certain extent, and a certain protective effect can be achieved on the outer ring of the door.

[0039] Further, such as Figure 1 - Figure 7 As shown, the T-shaped plate 202 is fixedly connected to the opposite side of the bottom thereof with a handle 204 , and the T-shaped plate 202 can be pulled conveniently by the setting of the handle 204 .

[0040] Working principle: When in use, by holding the handle 204 with hand and pulling it to one side, the T-shaped plate 202 slides along the outer surface of the support rod 201, and a pulling force is applied to the movable bar 2 502, so that the movable bar 2 502 drives the movable bar 1 501 to rotate, and the movable bar 2 502 is rotated to an appropriate angle at the same time, so that the components of the movable bars 1 501 and 2 502 are unfolded, so that the two L-shaped plates 203 are synchronously moved away from each other, and the two L-shaped plates 203 move the same distance, and the compression spring 206 is compressed synchronously, and then the outer ring of the door is placed on the L-shaped plate 203, and the handle 204 is released, so that the two T-shaped plates 202 are under the restoring force of the compression spring 206, and are in the matching position of the movable bars 1 501 and 2 502. The two L-shaped plates 203 are closed and synchronously slide toward the middle, so that the two L-shaped plates 203 clamp and fix the outer ring of the door, which makes it convenient to clamp and fix the outer rings of doors of different widths, and with the cooperation of the synchronous movement of the two L-shaped plates 203, the effect of the subsequent limiting strip 402 on the L-shaped plate 203 is guaranteed, and then the motor 104 is controlled by the controller to start, so that its output shaft drives the two-way screw rod 102 to rotate, and then under the action of the threaded cooperation of the two-way screw rod 102 and the clamping plate 103, and with the cooperation of the square groove 101 on the limiting guide of the clamping plate 103, the two clamping plates 103 can be moved toward each other along the outer surface of the two-way screw rod 102, and the distance between the two clamping plates 103 gradually approaches, and the outer ring of the door is clamped and fixed, and the movement of the clamping plates 103 is synchronized. , which can drive the push plate 302 to push the piston rod 301, so that the piston rod 301 slides into the interior of the hollow cylinder 3, so that the gas inside the hollow cylinder 3 enters the compression chamber of the pneumatic telescopic rod 304 through the connecting pipe 303, so that the air pressure inside the compression chamber is increased, so that the pneumatic telescopic rod 304 is extended, and the guide rail 1 305 is pushed upward, and the ear 306 is simultaneously made to slide upward along the outer surface of the guide rod 307, driving the rack 308 to slide upward along the inside of the guide rail 2 309, and then under the action of the meshing of the rack 308 and the gear 312, the gear 312 can drive the rotating rod 311, the L-shaped clamping block 313 and the elastic rubber pad 2 314 to rotate, so that the L-shaped clamping block 313 is rotated to the top of the outer ring of the door, and the elastic rubber pad 314 is driven to rotate. The second pad 314 contacts the outer ring of the door and compresses it to a certain extent, pressing the outer ring of the door against the L-shaped plate 203, which can improve the stability of the clamping and fixing of the outer ring of the door and prevent sliding and offsetting during the assembly process of the outer ring of the door, thereby ensuring the effect of the edge-to-edge assembly of some parts of the outer ring of the door. Through the cooperation of the sliding connection between the guide rail 1 305 and the rack 308, when the T-shaped plate 202 slides along the outer surface of the support rod 201, the rack 308 can be driven to slide inside the guide rail 1 305 under the cooperation of the U-shaped block 310 and the guide rail 2 309, so that this limiting fixture can adapt to the outer rings of doors of different widths, and the rack 308 and the gear 312 can always maintain a meshing state, and synchronously pass through the movement of the clamping plate 103,The horizontal plate 4 can be driven to move toward the limit strip 402, so that the limit strip 402 is inserted into the inside of the guide groove 401, so that the inclined surface 2 of the limit strip 402 contacts the inclined surface 1 of the guide groove 401, so that the limit strip 402 is subjected to an action, and the two L-shaped plates 203 can be moved toward the middle by an appropriate distance to squeeze the outer ring of the door, and the elastic rubber pad 1 205 is simultaneously compressed to a certain extent, until the inclined surface 2 of the limit strip 402 is separated from the inclined surface 1 of the guide groove 401, at which time the limit strip 402 is completely inserted into the inside of the guide groove 401, so that the L-shaped plate 203 can be limited and fixed to prevent the outer ring of the door from moving during the assembly process, thereby further improving the stability of this limit tooling.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A side-adhering and limiting tool for door outer ring assembly, characterized in that: include: A workbench (1), wherein a square groove (101) is provided on the top of the workbench (1), a bidirectional screw rod (102) is rotatably connected to the opposite side of the inner wall of the square groove (101), the outer surface of the bidirectional screw rod (102) is symmetrically threadedly connected to two clamping plates (103), one side of the workbench (1) is fixedly connected to a motor (104), the output end of the motor (104) is fixedly connected to one end of the bidirectional screw rod (102), the top of the workbench (1) is symmetrically fixedly connected to two fixing blocks (2), the two Two support rods (201) are symmetrically fixedly connected to the opposite side of the fixed block (2); two T-shaped plates (202) are symmetrically slidably connected to the outer surfaces of the two support rods (201); the top of the T-shaped plate (202) is fixedly connected to an L-shaped plate (203); the side of the T-shaped plate (202) close to the top is fixedly connected to a U-shaped block (310); the opposite side of the two arms of the U-shaped block (310) is rotatably connected to a rotating rod (311); the outer surface of the rotating rod (311) is fixedly connected to an L-shaped clamping block (313); ), one end of the rotating rod (311) is fixedly connected to a gear (312), one side of the U-shaped block (310) is fixedly connected to a guide rail 2 (309) through a support rod, the inside of the guide rail 2 (309) is slidably connected to a rack (308), the rack (308) is meshingly connected to the gear (312), the top of the workbench (1) is symmetrically fixedly connected to two pneumatic telescopic rods (304), one end of the pneumatic telescopic rod (304) is fixedly connected to a guide rail 1 (305), the rack (308) is meshingly connected to the guide rail 1 (305) sliding connection, the outer surface of the pneumatic telescopic rod (304) near the bottom is fixedly connected with a connecting pipe (303), the top of the workbench (1) is symmetrically fixedly connected with two hollow cylinders (3), the inner sealing sliding connection of the hollow cylinder (3) is connected with a piston rod (301), one of the clamping plates (103) is fixedly connected with a push plate (302) on the opposite side near the bottom, the push plate (302) is fixedly connected to the piston rod (301), and the connecting pipe (303) is fixedly connected to the hollow cylinder (3).

2. The edge-limiting tool for door outer ring assembly according to claim 1, characterized in that: One end of the connecting tube (303) is connected to the interior of the hollow cylinder (3), and the other end of the connecting tube (303) is connected to the compression chamber of the pneumatic telescopic rod (304).

3. The edge-limiting tool for door outer ring assembly according to claim 1, characterized in that: Two guide rods (307) are symmetrically fixedly connected to the top of the workbench (1), and a hanging ear (306) is fixedly connected to one side of the guide rail (305), and the hanging ear (306) is slidably connected to the guide rod (307).

4. The edge-limiting tool for door outer ring assembly according to claim 1, characterized in that: The outer surface of the clamping plate (103) is slidably connected to the inside of the square groove (101), the width of the clamping plate (103) is equal to the width of the square groove (101), and a plurality of anti-slip grooves are equidistantly provided on one side of the clamping plate (103) close to the top.

5. The edge-limiting tool for door outer ring assembly according to claim 4, characterized in that: A connecting block (5) is fixedly connected to the opposite side of the inner wall of the square groove (101); the center of the connecting block (5) is rotatably connected to a movable bar 1 (501) via an axle rod; both ends of the top of the movable bar 1 (501) are rotatably connected to a movable bar 2 (502) via an axle rod; one end of the top of the movable bar 2 (502) is rotatably connected to the center of the bottom of the T-shaped plate (202) via an axle rod.

6. The edge-adhering and limiting tool for door outer ring assembly according to claim 5, characterized in that: Two compression springs (206) are symmetrically arranged on the outer surface of the support rod (201), and the compression springs (206) are fixedly connected to the T-shaped plate (202) and the fixing block (2) respectively.

7. The edge-limiting tool for door outer ring assembly according to claim 4, characterized in that: The clamping plate (103) is fixedly connected to a transverse plate (4) on its opposite side close to the top, and a plurality of guide grooves (401) are equidistantly provided on one side of the transverse plate (4), and the inner walls of the plurality of guide grooves (401) are each provided with an inclined surface.

8. The edge-limiting tool for door outer ring assembly according to claim 1, characterized in that: The opposite sides of the L-shaped plates (203) are fixedly connected to the limiting strips (402), and one side of the limiting strips (402) is provided with a second inclined surface.

9. The edge-adhering and limiting tool for door outer ring assembly according to claim 8, characterized in that: One side of the L-shaped plate (203) is fixedly connected to an elastic rubber pad 1 (205), and one side of the L-shaped clamping block (313) is fixedly connected to an elastic rubber pad 2 (314).

10. The edge-limiting tool for door outer ring assembly according to claim 6, characterized in that: The T-shaped plate (202) is fixedly connected with a handle (204) on the opposite side close to the bottom.

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