Pressing mechanism of automobile part machining welding clamp

Abstract

The utility model relates to the technical field of automobile part machining, and discloses a hold-down mechanism of an automobile part machining welding fixture, which comprises a mounting seat, two groups of clamping seats are arranged at the top end of the mounting seat, and the two groups of clamping seats are bilaterally symmetrical about the axis of the mounting seat respectively. Adjusting mechanisms are arranged at the bottom ends of the clamping seat on the left side and the clamping seat on the right side; the adjusting mechanism comprises a screw, a sleeve is fixedly connected to the left end of the screw, a threaded rod is slidably connected to the inner wall of the right side of the sleeve, a fixing block and a supporting block are fixedly connected to the inner wall of the bottom end of the right clamping base, and a blocking mechanism is arranged on the inner wall of the right clamping base. According to the clamping device, the screw rod can be rotated to enable the screw rod and the threaded rod of the screw rod to rotate integrally, then the X-shaped plate is promoted to be unfolded upwards, the clamping plates move upwards, the clamping purpose is achieved, the two sets of arranged clamping plates can move at the same time, and therefore the situation that a workpiece deforms due to different clamping force is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to a pressing mechanism of a welding fixture for automobile parts processing. Background Technique

[0002] In modern society, as an important means of transportation, automobiles play a crucial role in people's lives and economic development. With the continuous progress of technology and the increasing requirements of consumers for aspects such as automobile performance, safety, comfort, and environmental protection, automobile parts processing technology is also continuously developing and innovating.

[0003] After retrieval, Chinese Patent Publication No.: CN219542180U discloses a pressing mechanism of an automobile welding fixture, including a bottom plate. On both sides of the top end of the bottom plate, clamping components are provided. Each clamping component includes a baffle. On one side of the baffle, a pressing plate is fixedly connected. Below the pressing plate, a pressing plate is provided. On the top end of the pressing plate, a rubber pad is fixedly connected. On the top end of the baffle, an adjusting bolt is provided. At the bottom end of the baffle, a lifting mechanism is provided. By arranging two clamping components on the top end of the bottom plate in the utility model, one of which can move, it is convenient to fix and clamp automobile accessories of different sizes. By arranging the lifting mechanism, the automobile accessories can be effectively moved up and down. By arranging the limiting mechanism, the baffle can be effectively limited and clamped, improving the stability of the baffle and facilitating the subsequent welding work of the automobile accessories.

[0004] Although the above technology has certain improvements, when adjusting the pressing plate, it is necessary to rotate the corresponding adjusting bolt to achieve the adjustment purpose. However, when rotating the adjusting bolt, it needs to be rotated multiple times, and multiple rotations will make it difficult to control the accuracy. The local area on the side with a larger clamping force bears a greater pressure, easily resulting in stress concentration. The local area on the side with a smaller clamping force bears a smaller pressure. Due to the smaller pressure borne by the side with a smaller clamping force, it may gradually deform during long-term use, and this deformation may further affect the fixing effect and processing accuracy. Therefore, a pressing mechanism of a welding fixture for automobile parts processing is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a pressing mechanism of a welding fixture for automobile parts processing, aiming to improve the problem that the adjusting bolt needs to be rotated multiple times when adjusting the pressing plate in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A pressing mechanism of a welding fixture for automobile parts processing, including a mounting seat. On the top end of the mounting seat, two groups of clamping seats are provided. The two groups of clamping seats are symmetrically arranged left and right with respect to the axis of the mounting seat. At the bottom ends of the left clamping seat and the right clamping seat, an adjusting mechanism is provided;

[0007] The adjusting mechanism includes a screw rod. A sleeve is fixedly connected to the left end of the screw rod. A threaded rod is slidably connected to the inner wall on the right side of the sleeve. Fixed blocks and support blocks are respectively fixedly connected to the inner wall at the bottom end of the right clamp seat. A slider is slidably connected to the inner wall at the bottom end of the right clamp seat. An X-shaped plate is rotatably connected to the top end of the support block. A moving column is rotatably connected to the top left end of the X-shaped plate. A clamping plate is rotatably connected to the top right end of the X-shaped plate. A telescopic column is fixedly connected to the left end of the threaded rod. The right end of the telescopic column is rotatably connected to the inner wall of the right clamp seat. A blocking mechanism is arranged on the inner wall of the right clamp seat.

[0008] As a further description of the above technical solution:

[0009] The bottom end of the left clamp seat is fixedly connected to the top end of the mounting seat. The bottom end of the right clamp seat is slidably connected to the inner wall at the top end of the mounting seat.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the screw rod is rotatably connected to the inner wall of the mounting seat.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the slider is threadedly connected to the outer wall of the threaded rod. The bottom left end of the X-shaped plate is rotatably connected to the front end of the slider.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the moving column is slidably connected to the inner wall of the clamping plate. The outer wall of the clamping plate is slidably connected to the inner wall of the clamp seat. The outer wall of the threaded rod is threadedly connected to the inner wall of the fixed block.

[0016] As a further description of the above technical solution:

[0017] The blocking mechanism includes a connecting spring. One end of the connecting spring is fixedly connected to the inner wall of the clamp seat. The other end of the connecting spring is fixedly connected to a protective plate. The outer wall of the protective plate is slidably connected to the inner wall of the right clamp seat. A baffle is fixedly connected to the front end of the threaded rod. A support plate is fixedly connected to the front end of the mounting seat. A plugging column is elastically connected to the inner wall of the baffle through a reset spring.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the baffle is slidably connected to the inner wall of the mounting seat. The left end of the protective plate is provided with an inclined surface facing upwards.

[0020] As a further description of the above technical solution:

[0021] One end of the return spring is fixedly connected to the outer arc surface of the insertion post, the other end of the return spring is fixedly connected to the inner wall of the baffle, the outer wall of the insertion post penetrates and is slidably connected to the inner wall of the baffle, and the bottom end of the insertion post is inserted on the top end of the support plate.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the mutual cooperation among the structures such as the clamp seat, the clamping plate and its adjusting mechanism, when needed, the screw can be rotated to make the screw and its threaded rod rotate as a whole, so as to promote the X-shaped plate to unfold upward, thereby the clamping plate moves upward, so as to achieve the clamping purpose, and the two sets of clamping plates arranged will move simultaneously, thus avoiding the deformation of the workpiece caused by uneven clamping force.

[0024] 2. In the utility model, through the mutual cooperation among the structures such as the baffle, the insertion post and its return spring, the operator can quickly move the right clamp seat to adapt to workpieces of different lengths and clamp them.

[0025] 3. In the utility model, through the mutual cooperation among the structures such as the blocking mechanism, the setting of the protective plate avoids debris from entering the inside of the clamp seat, and the setting of the protective plate does not affect the movement of the right clamp seat. Description of the Drawings

[0026] Figure 1 It is an overall three-dimensional schematic diagram of the pressing mechanism of a welding fixture for automobile part processing proposed by the utility model;

[0027] Figure 2 It is a schematic diagram of the internal section of the mounting seat of the pressing mechanism of a welding fixture for automobile part processing proposed by the utility model;

[0028] Figure 3 It is an overall three-dimensional schematic diagram of the protective plate of the pressing mechanism of a welding fixture for automobile part processing proposed by the utility model;

[0029] Figure 4 It is an enlarged structural schematic diagram at A of the pressing mechanism of a welding fixture for automobile part processing proposed by the utility model;

[0030] Figure 5 It is a schematic diagram of the internal section of the clamp seat of the pressing mechanism of a welding fixture for automobile part processing proposed by the utility model;

[0031] Figure 6Internal schematic diagram of the cross-section of the baffle of the pressing mechanism of a welding fixture for automobile parts proposed by the present utility model.

[0032] Legend:

[0033] 1. Mounting seat; 2. Clamping seat; 3. Adjusting mechanism; 301. Screw rod; 302. Sleeve; 303. Telescopic column; 304. Slide block; 305. X-shaped plate; 306. Moving column; 307. Fixed block; 308. Support block; 309. Threaded rod; 4. Blocking mechanism; 401. Protective plate; 402. Connecting spring; 5. Baffle; 6. Support plate; 7. Clamping plate; 8. Insertion column; 9. Return spring. Specific implementation mode

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] Refer to Figure 1 , an embodiment provided by the present utility model: a pressing mechanism of a welding fixture for automobile parts, including a mounting seat 1, the mounting seat 1 can be installed and fixed as a whole, two groups of clamping seats 2 are arranged at the top of the mounting seat 1, and the clamping seats 2 are used for welding and clamping operations on automobile parts. The two groups of clamping seats 2 are symmetrically arranged on the left and right with respect to the axis of the mounting seat 1, and an adjusting mechanism 3 is arranged at the bottom ends of the left clamping seat 2 and the right clamping seat 2; through the adjusting mechanism 3, the left and right clamping seats 2 can be adjusted simultaneously to avoid the situation of different clamping forces.

[0036] Refer to Figures 2 - 3 and Figure 5, the adjusting mechanism 3 includes a screw rod 301. A sleeve 302 is fixedly connected to the left end of the screw rod 301. A threaded rod 309 is slidably connected to the inner wall on the right side of the sleeve 302. By rotating the screw rod 301, the sleeve 302 and its threaded rod 309 are driven to rotate synchronously. And a turning handle is provided at the left end of the screw rod 301, and the turning handle is convenient for manual rotation of the screw rod 301. Fixed blocks 307 and support blocks 308 are respectively fixedly connected to the inner wall at the bottom end of the right clamping seat 2. The left clamping seat 2 is also provided with a corresponding mechanism. In this article, the right clamping seat 2 is discussed. The fixed blocks 307 and the support blocks 308 play a role in supporting and connecting. A slider 304 is slidably connected to the inner wall at the bottom end of the right clamping seat 2. A chute adapted to the slider 304 is provided in the inner wall of the clamping seat 2 to guide the movement of the slider 304, enabling it to only move horizontally. The top end of the support block 308 is rotatably connected to an X-shaped plate 305. The overall length of the X-shaped plate 305 can change. The left top end of the X-shaped plate 305 is rotatably connected to a moving column 306. The rotational setting avoids movement interference. The right top end of the X-shaped plate 305 is rotatably connected to a clamping plate 7. The rotational setting avoids movement interference. The left end of the threaded rod 309 is fixedly connected to a telescopic column 303. The overall length of the telescopic column 303 can be adjusted to adapt to the slidable right clamping seat 2. The right end of the telescopic column 303 is rotatably connected to the inner wall of the right clamping seat 2. The rotational connection between the two avoids movement interference. A blocking mechanism 4 is provided on the inner wall of the right clamping seat 2. The blocking mechanism 4 can reduce the entry of debris into the interior of the mounting seat 1 during the processing of automotive parts.

[0037] Refer to Figures 2 - 3 and Figure 5 , the bottom end of the left clamping seat 2 is fixedly connected to the top end of the mounting seat 1. The bottom end of the right clamping seat 2 is slidably connected to the inner wall at the top end of the mounting seat 1. The sliding setting can thus adapt to automotive parts of different lengths. The outer wall of the screw rod 301 is rotatably connected to the inner wall of the mounting seat 1. By the rotational setting, the purpose of driving and adjusting is achieved. The inner wall of the slider 304 is threadedly connected to the outer wall of the threaded rod 309. By rotating the threaded rod 309, the slider 304 can be driven to move horizontally. The left bottom end of the X-shaped plate 305 is rotatably connected to the front end of the slider 304. When the slider 304 moves, the length of the X-shaped plate 305 in the vertical direction becomes longer, so as to use automotive parts of different models. The outer wall of the moving column 306 is slidably connected to the inner wall of the clamping plate 7. The sliding setting allows the clamping plate 7 to rise when the moving column 306 moves. The outer wall of the clamping plate 7 is slidably connected to the inner wall of the clamping seat 2. The clamping seat 2 guides the clamping plate 7, enabling it to only move in the vertical direction.

[0038] Refer to Figure 2 , Figure 4 and Figure 6, the blocking mechanism 4 includes a connecting spring 402. One end of the connecting spring 402 is fixedly connected to the inner wall of the clamping seat 2, and the other end of the connecting spring 402 is fixedly connected with a protection plate 401. The outer wall of the protection plate 401 is slidably connected to the inner wall of the right clamping seat 2. Due to the elasticity of the connecting spring 402, the protection plate 401 has the functions of reset and blocking. The front end of the threaded rod 309 is fixedly connected with a baffle 5, and their horizontal movement trajectories are the same. The front end of the mounting seat 1 is fixedly connected with a support plate 6, and the support plate 6 plays a role of fixed connection. The inner wall of the baffle 5 is elastically connected with a plugging column 8 through a reset spring 9. The setting of the plugging column 8 can play a limiting function. The outer wall of the baffle 5 is slidably connected to the inner wall of the mounting seat 1, and their sliding can enable the right clamping seat 2 to move. The left end of the protection plate 401 is provided with an inclined surface facing upwards. The inclined surface is arranged so that debris will not enter the inner wall of the mounting seat 1 when the right clamping seat 2 moves to the left. One end of the reset spring 9 is fixedly connected to the outer arc surface of the plugging column 8, and the other end of the reset spring 9 is fixedly connected to the inner wall of the baffle 5. The outer wall of the plugging column 8 penetrates and is slidably connected to the inner wall of the baffle 5. Due to the elasticity of the reset spring 9, the plugging column 8 has the functions of reset and limiting, and the through setting facilitates the operator to move. The bottom end of the plugging column 8 is plugged on the top end of the support plate 6. Multiple slots are opened at the top end of the support plate 6, and the plugging of the bottom end of the plugging column 8 into the slots achieves the limiting function.

[0039] Working principle: Rotate the knob at the left end of the screw rod 301. The rotation of the screw rod 301 drives the sleeve 302 and the threaded rod 309 slidably connected inside it to rotate synchronously, playing a role of driving and adjusting. When the threaded rod 309 rotates, since the inner wall of the slider 304 is threadedly connected to the outer wall of the threaded rod 309, and the bottom end of the slider 304 is slidably connected to the chute opened on the inner wall of the right clamping seat 2 (it can only move horizontally), the slider 304 moves horizontally. When the slider 304 moves, the left bottom end of the X-shaped plate 305 is rotatably connected to the front end of the slider 304, so that the vertical length of the X-shaped plate 305 changes. When the length of the X-shaped plate 305 changes, the moving column 306 moves to make the clamping plate 7 rise or fall, realizing the clamping or loosening of automotive parts. At the same time, the right end of the telescopic column 303 is rotatably connected to the inner wall of the right clamping seat 2, and the left end is fixedly connected to the threaded rod 309, and its overall length can be adjusted to adapt to the slidable right clamping seat 2 and can adapt to automotive parts of different lengths.

[0040] When machining automotive parts, in order to prevent debris from entering the inside of the mounting seat 1, the blocking mechanism 4 is provided. Due to the elasticity of the connecting spring 402, the protection plate 401 has the functions of reset and blocking. The left end of the protection plate 401 is provided with an inclined surface. When the right clamping seat 2 moves to the left, the inclined surface facing upwards can adapt to the movement of the clamping seat 2. When it is necessary to move the right clamping seat 2, the plugging column 8 can be moved upwards to release the limit, and then it can be moved. The operation is simple and convenient.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clamping mechanism for a welding fixture for processing automobile parts, comprising a mounting seat (1), characterized in that: Two groups of clamping seats (2) are arranged at the top of the mounting seat (1), and the two groups of clamping seats (2) are symmetrical about the axis of the mounting seat (1), and the bottom ends of the left clamping seat (2) and the right clamping seat (2) are provided with adjustment mechanisms (3); The adjusting mechanism (3) comprises a screw rod (301), the left end of the screw rod (301) is fixedly connected to a sleeve (302), the right inner wall of the sleeve (302) is slidably connected to a threaded rod (309), the bottom inner wall of the right clamping seat (2) is respectively fixedly connected to a fixed block (307) and a support block (308), the bottom inner wall of the right clamping seat (2) is slidably connected to a slider (304), the top of the support block (308) is rotatably connected to an X-shaped plate (305), the left top of the X-shaped plate (305) is rotatably connected to a moving column (306), the right top of the X-shaped plate (305) is rotatably connected to a clamping plate (7), the left end of the threaded rod (309) is fixedly connected to a telescopic column (303), the right end of the telescopic column (303) is rotatably connected to the inner wall of the right clamping seat (2), and the inner wall of the right clamping seat (2) is provided with a blocking mechanism (4).

2. The clamping mechanism of the automobile parts processing welding fixture according to claim 1 is characterized in that: The bottom end of the clamping seat (2) on the left side is fixedly connected to the top end of the mounting seat (1), and the bottom end of the clamping seat (2) on the right side is slidably connected to the inner wall of the top end of the mounting seat (1).

3. The clamping mechanism of the automobile parts processing welding fixture according to claim 1 is characterized in that: The outer wall of the screw rod (301) is rotatably connected to the inner wall of the mounting seat (1).

4. The clamping mechanism of the automobile parts processing welding fixture according to claim 1 is characterized in that: The inner wall of the slider (304) is threadedly connected to the outer wall of the threaded rod (309), and the left bottom end of the X-shaped plate (305) is rotatably connected to the front end of the slider (304).

5. The clamping mechanism of the automobile parts processing welding fixture according to claim 1 is characterized in that: The outer wall of the movable column (306) is slidably connected to the inner wall of the clamping plate (7), the outer wall of the clamping plate (7) is slidably connected to the inner wall of the clamping seat (2), and the outer wall of the threaded rod (309) is threadedly connected to the inner wall of the fixed block (307).

6. The clamping mechanism of the automobile parts processing welding fixture according to claim 1 is characterized in that: The blocking mechanism (4) comprises a connecting spring (402), one end of which is fixedly connected to the inner wall of the clamp seat (2), the other end of which is fixedly connected to a protective plate (401), the outer wall of which is slidably connected to the inner wall of the clamp seat (2) on the right side, the front end of the threaded rod (309) is fixedly connected to a baffle (5), the front end of the mounting seat (1) is fixedly connected to a support plate (6), and the inner wall of the baffle (5) is elastically connected to a plug-in column (8) via a reset spring (9).

7. The clamping mechanism of the automobile parts processing welding fixture according to claim 6 is characterized in that: The outer wall of the baffle (5) is slidably connected to the inner wall of the mounting seat (1), and the left end of the protection plate (401) is provided with an inclined surface, which faces upward.

8. The clamping mechanism of the automobile parts processing welding fixture according to claim 6 is characterized in that: One end of the reset spring (9) is fixedly connected to the outer arc surface of the plug-in column (8), and the other end of the reset spring (9) is fixedly connected to the inner wall of the baffle (5). The outer wall of the plug-in column (8) passes through and is slidably connected to the inner wall of the baffle (5), and the bottom end of the plug-in column (8) is plugged into the top end of the support plate (6).

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