Clamp for assembling automobile engine cylinder
By designing a manually adjustable clamping structure, the problem of existing clamps being unable to manually adjust the clamping plate spacing in the absence of power was solved, enabling flexible clamping of cylinders in the absence of power and ensuring the normal assembly of engine cylinders.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- STARK IND EQUIP (SHANDONG) CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-17
AI Technical Summary
Existing automotive engine cylinder assembly fixtures adjust the clamping plate spacing electronically, which cannot be manually adjusted in the absence of power, affecting normal use.
A clamping structure including a support frame, threaded sleeve, adjusting screw, clamping plate, support spring and limiting slide bar is designed. The spacing of the clamping plate can be adjusted and fixed by manually adjusting the position of the fastening nut and screw. It can form a multi-form clamping with the concave plate and support plate.
It enables manual adjustment of the clamping plate spacing in the absence of power, ensuring normal cylinder assembly, avoiding usage obstacles when power is insufficient, and providing a flexible clamping and fixing method.
Smart Images

Figure CN224129628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, specifically a fixture for assembling automobile engine cylinders. Background Technology
[0002] The cylinder of a car engine is a key component of the engine. It generates power by burning fuel or compressing air, which drives the piston to reciprocate. The cylinder converts the heat energy generated by fuel combustion into mechanical energy to provide power output for the machine. When the engine is working, the intake air and fuel mix in the cylinder. After being ignited by a spark, the combustible mixture is burned, and the resulting high-pressure gas drives the piston. When assembling a car engine cylinder, it is necessary to use a fixture to position it before proceeding with the subsequent assembly.
[0003] When using existing automotive engine cylinder assembly jigs, the purpose of these jigs is to position the automotive engine cylinders. The existing jigs adjust the spacing of the clamping plates through electronic control, which cannot be adjusted manually. This causes problems with normal use when there is no power. Utility Model Content
[0004] The purpose of this utility model is to provide a jig for assembling automobile engine cylinders, so as to solve the problem mentioned in the background art that the existing jigs adjust the spacing of the clamping plates by means of electronic control, which cannot be adjusted manually and affects normal use when there is no power.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a jig for assembling automobile engine cylinders, comprising a support frame:
[0006] The top surface of the support frame is provided with a threaded sleeve, and an adjusting screw is rotatably connected inside the threaded sleeve. A clamping plate is sleeved on the outer wall of the adjusting screw. A fastening nut is rotatably connected to the outer surface of the middle section of the adjusting screw, and a fastening nut is rotatably connected to the outer surface of the bottom end of the adjusting screw. Supporting springs are connected inside both sides of the clamping plate, and a limit slide rod is connected to one end of the supporting spring.
[0007] Preferably, the top surface of the support frame has a through hole one, the top surface of the clamping plate has a through hole two, and the adjusting screw is inserted into the through hole one of the support frame and the through hole two of the clamping plate.
[0008] Preferably, the clamping plate has grooves on both sides, and one end of the support spring is connected to one side of the inner wall of the groove in the clamping plate.
[0009] Preferably, the support frame has sliding grooves on both sides, and one end of the limiting slide rod is inserted into the sliding groove of the support frame and slidably connected to the support frame.
[0010] Preferably, one end of the clamping plate is connected to a support plate, a concave plate is sleeved on the outer wall of the top of the support plate, a fixing screw is connected to the bottom surface of the concave plate, and a fastening nut is rotatably connected to the bottom outer surface of the fixing screw.
[0011] Preferably, the bottom ends of the concave plate are inserted into the gaps between the clamping plate and the support plate, and the support frame has through slots on both sides at one end. The through slots in the support frame are used to position the bottom end of the concave plate.
[0012] Preferably, the top surface of the support plate has a slot, the bottom end of the fixing screw is inserted into the slot of the support plate, and the fixing screw and the fastening nut are rotatably connected by threads.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. By rotating the adjusting screw into the threaded sleeve, the bottom end of the adjusting screw passes through the through hole one of the support frame and rotates into the fastening nut one. Then, the bottom end of the adjusting screw is inserted into the through hole two of the clamping plate. The fastening nut two is then rotated and connected to the outer surface of the bottom end of the adjusting screw. By adjusting the distance between the fastening nut one and the fastening nut two, the clamping plate is clamped and fixed. One end of the support spring limit slide rod is inserted into the slide groove of the support frame to limit the movement of the clamping plate. By adjusting the angle of the adjusting screw, the clamping plate is moved up and down, thus adjusting the distance between the support frame and the clamping plate to clamp and fix the cylinder. This avoids the problem of normal use being affected when there is no power due to the inability to adjust manually.
[0015] 2. By inserting the bottom two sides of the concave plate into the gap between the clamping plate and the support plate, the two sides of the concave plate are positioned, and the bottom end of the fixing screw is simultaneously inserted into the slot at the top of the support plate. The clamping plate is used to position the concave plate. Then, the fastening nut is rotated to the outer surface of the bottom end of the fixing screw to limit the fixing screw. This allows for the rapid assembly of the clamping plate and the concave plate. The concave plate, in conjunction with the support frame and the clamping plate, forms a concave structure to achieve another form of clamping effect. Attached Figure Description
[0016] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0017] Figure 2 This is a three-dimensional sectional view of the structure of this utility model.
[0018] Figure 3 This is a three-dimensional side view and cross-sectional view of the structure of this utility model;
[0019] Figure 4This is a partial sectional three-dimensional side view of the structure of this utility model;
[0020] Figure 5 This is a three-dimensional sectional view of the structure of this utility model from below.
[0021] In the diagram: 11. Support frame; 12. Threaded sleeve; 13. Adjusting screw; 14. Clamping plate; 15. Fastening nut one; 16. Fastening nut two; 17. Support spring; 18. Limiting slide rod; 19. Support plate; 20. Concave plate; 21. Fixing screw; 22. Fastening nut three. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-5 One embodiment provided by this utility model:
[0024] A jig for assembling automobile engine cylinders includes a support frame 11.
[0025] The top surface of the support frame 11 is provided with a threaded sleeve 12, and an adjusting screw 13 is rotatably connected inside the threaded sleeve 12. A clamping plate 14 is sleeved on the outer wall of the adjusting screw 13. A fastening nut 15 is rotatably connected to the outer surface of the middle section of the adjusting screw 13, and a fastening nut 16 is rotatably connected to the outer surface of the bottom end of the adjusting screw 13. Support springs 17 are connected inside both sides of the clamping plate 14. One end of the support spring 17 is connected to a limit slide rod 18. The internal material of the support frame 11 is existing technology and can be purchased on the market. It is not considered as a technical protection point of this application. Therefore, no further details are made.
[0026] Furthermore, a through hole 1 is provided on the top surface of the support frame 11, and a through hole 2 is provided on the top surface of the clamping plate 14. The adjusting screw 13 is inserted into the through hole 1 of the support frame 11 and the through hole 2 of the clamping plate 14, so as to position the adjusting screw 13 through the through hole 1 of the support frame 11 and the through hole 2 of the clamping plate 14.
[0027] Furthermore, grooves are provided on both sides of the clamping plate 14, and one end of the support spring 17 is connected to one side of the inner wall of the groove provided in the clamping plate 14, so that the groove provided in the clamping plate 14 can limit one end of the support spring 17.
[0028] Furthermore, the support frame 11 has sliding grooves on both sides, and one end of the limiting slide rod 18 is inserted into the sliding groove of the support frame 11 and slidably connected to the support frame 11, so as to realize the movement and limiting of the limiting slide rod 18 through the sliding groove of the support frame 11.
[0029] Furthermore, a support plate 19 is connected to one end of the clamping plate 14. A concave plate 20 is sleeved on the outer wall of the top of the support plate 19. A fixing screw 21 is connected to the bottom surface of the concave plate 20. A fastening nut 22 is rotatably connected to the bottom outer surface of the fixing screw 21, so as to realize the concave plate 20 in conjunction with the support frame 11 and the clamping plate 14 to form a concave structure and achieve another form of clamping effect.
[0030] Furthermore, the bottom sides of the concave plate 20 are inserted into the gap between the clamping plate 14 and the support plate 19. The support frame 11 has through slots on both sides at one end. The through slots in the support frame 11 are used to position the bottom of the concave plate 20, so that the concave plate 20 can be positioned by the through slots in the support frame 11 when it moves downward.
[0031] Furthermore, a slot is provided on the top surface of the support plate 19, and the bottom end of the fixing screw 21 is inserted into the slot of the support plate 19. The fixing screw 21 and the fastening nut 22 are connected by a thread to achieve the limitation between the fixing screw 21 and the fastening nut 22 by the thread.
[0032] Working principle: When adjusting the clamp for assembling automobile engine cylinders, the adjusting screw 13 is rotatably connected to the inside of the threaded sleeve 12, so that the bottom end of the adjusting screw 13 passes through the through hole 1 of the support frame 11 and is rotatably connected to the inside of the fastening nut 15. Then, the bottom end of the adjusting screw 13 is inserted into the through hole 2 of the clamping plate 14, and the fastening nut 2 16 is rotatably connected to the outer surface of the bottom end of the adjusting screw 13. By adjusting the distance between the fastening nut 15 and the fastening nut 2 16, the clamping plate 14 is clamped and fixed. The support spring 17 supports the limiting slide rod 18, one end of which is inserted into the slide groove of the support frame 11, limiting the movement of the clamping plate 14. By adjusting the angle of the adjusting screw 13, the clamping plate 14 is controlled to move up and down, thereby adjusting the distance between the support frame 11 and the clamping plate 14 to clamp and fix the cylinder.
[0033] When assembling the jig for assembling automobile engine cylinders, the concave plate 20 is positioned by inserting its bottom two sides into the gap between the clamping plate 14 and the support plate 19. At the same time, the bottom end of the fixing screw 21 is inserted into the slot at the top of the support plate 19. The clamping plate 14 is used to position the concave plate 20. Then, the fastening nut 22 is rotated and connected to the outer surface of the bottom end of the fixing screw 21 to limit the fixing screw 21. This allows for the rapid assembly of the clamping plate 14 and the concave plate 20. The concave plate 20, together with the support frame 11 and the clamping plate 14, forms a concave structure to achieve another form of clamping effect.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A jig for assembling automobile engine cylinders, comprising a support frame (11), characterized in that: The top surface of the support frame (11) is provided with a threaded sleeve (12), and an adjusting screw (13) is rotatably connected inside the threaded sleeve (12). A clamping plate (14) is sleeved on the outer wall of the adjusting screw (13). A fastening nut (15) is rotatably connected to the outer surface of the middle section of the adjusting screw (13). A fastening nut (16) is rotatably connected to the outer surface of the bottom end of the adjusting screw (13). Supporting springs (17) are connected inside both sides of the clamping plate (14). One end of the supporting spring (17) is connected to a limit slide rod (18).
2. The fixture for assembling the cylinder of an automobile engine according to claim 1, wherein: The support frame (11) has a through hole one on its top surface, and the clamping plate (14) has a through hole two on its top surface. The adjusting screw (13) is inserted into the through hole one of the support frame (11) and the through hole two of the clamping plate (14).
3. The fixture for assembling the cylinder of an automobile engine according to claim 1, wherein: The clamping plate (14) has grooves on both sides, and one end of the support spring (17) is connected to one side of the inner wall of the groove in the clamping plate (14).
4. The fixture for assembling the cylinder of an automobile engine according to claim 1, wherein: The support frame (11) has sliding grooves on both sides, and one end of the limiting slide rod (18) is inserted into the sliding groove of the support frame (11) and slidably connected to the support frame (11).
5. The fixture for assembling the cylinder of an automobile engine according to claim 1, wherein: One end of the clamping plate (14) is connected to a support plate (19). A concave plate (20) is sleeved on the outer wall of the top end of the support plate (19). A fixing screw (21) is connected to the bottom surface of the concave plate (20). A fastening nut (22) is rotatably connected to the bottom outer surface of the fixing screw (21).
6. The fixture for assembling a cylinder block of an automobile engine according to claim 5, wherein: The concave plate (20) is inserted into the gap between the clamping plate (14) and the support plate (19) on both sides of the bottom end. The support frame (11) has through slots on both sides of one end. The through slots of the support frame (11) are used to position the bottom end of the concave plate (20).
7. The fixture for assembling the cylinder of an automobile engine according to claim 5, wherein: The top surface of the support plate (19) is provided with a slot, and the bottom end of the fixing screw (21) is inserted into the slot of the support plate (19). The fixing screw (21) and the fastening nut (22) are connected by a thread.