Piston cylinder measuring fixture with quick clamping capability

Abstract

This utility model discloses a piston cylinder measuring fixture capable of rapid clamping, relating to the field of measuring equipment technology. The utility model includes a connecting block, with several protective plates fixedly connected to the top outer wall of the connecting block. By incorporating a second gear and clamping plates, the rotation of the second gear drives multiple first positioning blocks to move. Multiple arc-shaped grooves inside the second gear limit the movement range of the first positioning blocks. Simultaneously, during the movement of the first positioning blocks, their direction of movement is restricted by the limiting grooves inside the second positioning blocks, ensuring that the first positioning blocks can only move vertically and push the clamping plates towards the object. This achieves the simultaneous movement of multiple clamping plates driven by the rotation of the second gear, preventing problems such as uneven force distribution leading to workpiece displacement when dealing with irregularly shaped piston cylinders, which require separate adjustment of the position and force of the clamping plates on both sides.

Description

Technical Field

[0001] This utility model belongs to the field of measuring equipment technology, and in particular relates to a piston cylinder measuring fixture that can be quickly clamped. Background Technology

[0002] According to the published patent CN214149371U, an engine piston measuring fixture is provided on one side of the upper end of the base. A bracket is provided at the bottom end of the bracket, and a cylinder is provided at the bottom end of the cylinder. A connecting plate is provided at the bottom end of the cylinder. A T-slot is provided in the connecting plate, and a rotating shaft is provided in the T-slot. An electric motor is provided on one side wall of the connecting plate, and a connecting rod is provided on one side wall of the rotating shaft. A mounting plate is provided at the bottom end of the connecting rod. Electric push rods are provided on both sides of the mounting plate, and one end of each electric push rod is provided with... An arc-shaped clamping plate is used, with the connecting plate and the cylinder connected by screws. A T-slot is formed on the connecting plate, and the rotating shaft is rotatably connected to the T-slot. An elastic pad is bonded to the arc-shaped clamping plate, and a frosted pad is bonded to the elastic pad. By setting the frosted pad and the elastic pad, during the clamping process, the frosted pad can increase the friction between the arc-shaped clamping plate and the piston, thereby ensuring the stability of the device when clamping and fixing. At the same time, the elastic pad can buffer the instantaneous clamping force on the piston, improving the clamping effect of the device. However, the following shortcomings still exist:

[0003] After completion, the above equipment simply uses two cylinders to push the arc-shaped clamping plates to clamp the object from both sides and uses a sanding pad to increase the stability of the clamping. However, due to the variety of piston cylinder shapes, when dealing with irregularly shaped piston cylinders, it is necessary to adjust the position and force of the clamping plates on both sides separately, which can easily lead to problems such as workpiece displacement due to uneven force. Utility Model Content

[0004] The purpose of this utility model is to provide a piston cylinder measuring fixture that can be quickly clamped. Through the clamping mechanism and the fixing mechanism, it solves the problem that when dealing with piston cylinders with various shapes, it is necessary to adjust the position and force of the clamping plates on both sides separately, which can easily lead to workpiece displacement due to uneven force.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a piston cylinder measuring fixture that can be quickly clamped, including a connecting block, and several protective plates are fixedly connected to the top outer wall of the connecting block;

[0007] The outer wall of the connecting block is provided with a clamping mechanism, which includes a protective shell. The outer wall of the protective shell is fixedly connected to the outer wall of the connecting block. A motor is fixedly connected to the inner wall of the protective shell. The output end of the motor is fixedly connected to a connecting shaft via a coupling. A first gear is fixedly connected to the outer wall of the connecting shaft. A second gear meshes with the outer wall of the first gear. The inner wall of the second gear has several arc-shaped grooves. A first positioning block is slidably connected to the inner wall of the several arc-shaped grooves. A clamping plate is fixedly connected to the outer wall of the first positioning block. Several second positioning blocks are fixedly connected to the inner wall of the protective shell. Several limiting grooves are opened on the inner wall of the second positioning blocks. The outer wall of the connecting block is provided with a fixing mechanism.

[0008] Furthermore, the outer wall of the first gear is rotatably connected to the inner wall of the protective shell, the outer wall of the second gear is rotatably connected to the inner wall of the protective shell, and the outer wall of the first positioning block is slidably connected to the inner wall of the limiting groove.

[0009] Furthermore, the fixing mechanism includes an electric push rod, the outer wall of which is fixedly connected to the outer wall of the connecting block. A plurality of first connecting blocks are fixedly connected to the outer wall of the electric push rod away from the connecting block. A first support rod is rotatably connected to the outer wall of the plurality of first connecting blocks. A support plate is rotatably connected to the outer wall of the first support rod away from the first connecting block. A second support rod is rotatably connected to the bottom outer wall of the support plate.

[0010] Furthermore, a second connecting block is rotatably connected to the outer wall of the end of the second support rod away from the support plate, and the outer wall of the second connecting block is fixedly connected to the outer wall of the electric push rod. A reinforcing rod is rotatably connected to the outer wall of the first support rod, and the outer wall of the reinforcing rod is rotatably connected to the outer wall of the second support rod.

[0011] Furthermore, a limiting block is fixedly connected to the outer wall of the support plate, and a plurality of sliding grooves are provided on the inner wall of the connecting block, and the outer wall of the limiting block is slidably connected to the inner wall of the sliding groove.

[0012] Furthermore, a plurality of telescopic rods are fixedly connected to the outer wall of the support plate, and an arc-shaped top plate is fixedly connected to the outer wall of the telescopic rods away from the support plate. A fixing block is fixedly connected to the outer wall of the support plate, and a plurality of first connecting rods are rotatably connected to the outer wall of the fixing block. A first slider is rotatably connected to the outer wall of the first connecting rod away from the fixing block.

[0013] Furthermore, the outer wall of the first slider is slidably connected to the outer wall of the arc-shaped top plate, and a plurality of second sliders are slidably connected to the outer wall of the arc-shaped top plate. The outer walls of the plurality of second sliders are rotatably connected to a second connecting rod, and the outer wall of the end of the second connecting rod away from the second slider is rotatably connected to a third slider.

[0014] Furthermore, a damper is fixedly connected to the outer wall of the third slider, the outer wall of the damper is fixedly connected to the outer wall of the fixed block, and a spring is fixedly connected to the outer wall of the damper, the outer wall of the spring is fixedly connected to the outer wall of the third slider.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates a second gear and clamping plates. The rotation of the second gear drives multiple first positioning blocks to move, while multiple arc-shaped grooves inside the second gear limit the movement range of the first positioning blocks. Simultaneously, during the movement of the first positioning blocks, their direction of movement is restricted by the limiting grooves inside the second positioning blocks, ensuring that the first positioning blocks can only move vertically. This pushes the clamping plates towards the object, achieving simultaneous movement of multiple clamping plates through the rotation of the second gear. This prevents problems such as the need to adjust the position and force of the clamping plates on both sides separately when dealing with irregularly shaped piston cylinders, which can easily lead to workpiece displacement due to uneven force.

[0017] 2. This utility model incorporates an electric push rod and an arc-shaped top plate. Activating the electric push rod allows it to extend automatically, simultaneously moving multiple first connecting blocks on its outermost side. These first connecting blocks then move the first support rod, which in turn moves the support plate. A limiting block is pre-installed on the outer side of the support plate, confining it within a groove inside the connecting block. This groove restricts the movement range of the support plate, causing it to pull the first support rod, which rotates around the outer side of the first connecting block, while simultaneously moving the reinforcing rod. The movement of the reinforcing rod then pulls the second support rod, causing it to rotate and supporting the bottom of the support plate. This design achieves the goal of the electric push rod extending and pushing the arc-shaped top plate into contact with the inner wall of the piston cylinder, preventing deformation of the piston cylinder due to excessive pressure during external clamping, especially in thinner sections of the piston cylinder.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the clamping structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the fixing structure of this utility model;

[0023] Figure 4 This is a sectional view of the fixed structure of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Connecting block; 101. Protective plate; 2. Clamping mechanism; 201. Protective shell; 202. Motor; 203. Connecting shaft; 204. First gear; 205. Second gear; 206. Arc groove; 207. First positioning block; 208. Second positioning block; 209. Limiting groove; 210. Clamping plate; 3. Fixing mechanism; 301. Electric push rod; 302. First connecting block; 303. First support rod; 304. Support plate; 305. Second support rod; 306. Second connecting block; 307. Limiting block; 308. Slide groove; 309. Telescopic rod; 310. Arc top plate; 311. Fixing block; 312. First connecting rod; 313. First slider; 314. Second slider; 315. Second connecting rod; 316. Third slider; 317. Damper; 318. Spring; 319. Reinforcing rod. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 As shown, this utility model is a piston cylinder measuring fixture that can be quickly clamped, including a connecting block 1, and a plurality of protective plates 101 are fixedly connected to the top outer wall of the connecting block 1;

[0029] A clamping mechanism 2 is provided on the outer wall of the connecting block 1. The clamping mechanism 2 includes a protective shell 201. The outer wall of the protective shell 201 is fixedly connected to the outer wall of the connecting block 1. A motor 202 is fixedly connected to the inner wall of the protective shell 201. The motor 202 is started. The output end of the motor 202 is fixedly connected to a connecting shaft 203 through a coupling. A first gear 204 is fixedly connected to the outer wall of the connecting shaft 203. A second gear 205 meshes with the outer wall of the first gear 204. Through the meshing of the first gear 204 and the second gear 205, the support plate 304 pushes the second gear 205 to rotate. The inner wall of the second gear 205 is provided with several arc-shaped grooves 206. A first positioning block 207 is slidably connected to the inner wall of the several arc-shaped grooves 206. Since the first positioning block 207 is located inside the arc-shaped grooves 206, the second gear 205 rotates while passing through the arc-shaped grooves 206. The rotation of the first positioning block 207 drives the first positioning block 207 to move. The outer wall of the first positioning block 207 is fixedly connected to the clamping plate 210. The movement of the first positioning block 207 pushes the clamping plate 210 to clamp the object inside the protective shell 201. Several second positioning blocks 208 are fixedly connected to the inner wall of the protective shell 201. Several limiting grooves 209 are opened on the inner wall of the second positioning block 208. The outer wall of the connecting block 1 is provided with a fixing mechanism 3. The outer wall of the first gear 204 is rotatably connected to the inner wall of the protective shell 201. The outer wall of the second gear 205 is rotatably connected to the inner wall of the protective shell 201. The outer wall of the first positioning block 207 is slidably connected to the inner wall of the limiting groove 209. Since the first positioning block 207 is restricted by the limiting groove 209 inside the second positioning block 208, the movement direction of the first positioning block 207 is restricted by the limiting groove 209 when the first positioning block 207 moves.

[0030] The fixing mechanism 3 includes an electric push rod 301. When the electric push rod 301 is activated, its outer wall is fixedly connected to the outer wall of the connecting block 1. Several first connecting blocks 302 are fixedly connected to the outer wall of the electric push rod 301 on the side away from the connecting block 1. First support rods 303 are rotatably connected to the outer walls of the first connecting blocks 302. When the electric push rod 301 extends and pushes the first connecting blocks 302 to move, it causes the first support rods 303 to rotate around the outer side of the first connecting blocks 302. A support plate 304 is rotatably connected to the outer wall of the first support rod 303 on the side away from the first connecting blocks 302. A second support rod 305 is rotatably connected to the bottom outer wall of the support plate 304. Simultaneously, the rotation of the first support rod 303 pushes the support plate 304 to move, pulling the second support rod 305 to rotate around the outer side of the support plate 304. To stabilize the movement of the support plate 304, a second connecting block 306 is rotatably connected to the outer wall of the end of the second support rod 305 away from the support plate 304. The outer wall of the second connecting block 306 is fixedly connected to the outer wall of the electric push rod 301. A reinforcing rod 319 is rotatably connected to the outer wall of the first support rod 303. The outer wall of the reinforcing rod 319 is rotatably connected to the outer wall of the second support rod 305. The reinforcing rod 319 connects the first support rod 303 and the second support rod 305 simultaneously, thereby sharing the pressure on the first support rod 303 and the second support rod 305. A limiting block 307 is fixedly connected to the outer wall of the support plate 304. Several sliding grooves 308 are opened on the inner wall of the connecting block 1. The outer wall of the limiting block 307 is slidably connected to the inner wall of the sliding groove 308. The limiting block 307 moves along the sliding groove 308 to limit the movement direction of the support plate 304.

[0031] Several telescopic rods 309 are fixedly connected to the outer wall of the support plate 304. An arc-shaped top plate 310 is fixedly connected to the outer wall of one end of the telescopic rod 309 away from the support plate 304. Utilizing the telescopic characteristic of the telescopic rods 309, the arc-shaped top plate 310 automatically shortens when it contacts the inner wall of the object, preventing the pressure generated by the movement of the support plate 304 from directly acting on the object. A fixing block 311 is fixedly connected to the outer wall of the support plate 304. Several first connecting rods 312 are rotatably connected to the outer wall of the fixing block 311. A first slider 313 is rotatably connected to the outer wall of one end of the first connecting rod 312 away from the fixing block 311. The rotation of the first connecting rod 312 around the fixing block 311 pushes the first slider 313 to move along the outer side of the arc-shaped top plate 310, thereby supporting the movement of the arc-shaped top plate 310. The outer wall of the first slider 313 is slidably connected to the outer wall of the arc-shaped top plate 310. Several second sliders 314 are slidably connected to the outer wall of the arc-shaped top plate 310. A second connecting rod 315 is rotatably connected to the outer wall of several second sliders 314. A third slider 316 is rotatably connected to the outer wall of the second connecting rod 315 away from the second sliders 314. The rotation of the second connecting rod 315 simultaneously pushes the second sliders 314 and the third sliders 316 to move in opposite directions along the outer side of the arc-shaped top plate 310 and the support plate 304, respectively, while increasing the support force of the first connecting rod 312 on the arc-shaped top plate 310. A damper 317 is fixedly connected to the outer wall of the third slider 316. The outer wall of the damper 317 is fixedly connected to the outer wall of the fixed block 311. A spring 318 is fixedly connected to the outer wall of the damper 317. The outer wall of the spring 318 is fixedly connected to the outer wall of the third slider 316. The movement of the third slider 316 compresses the damper 317, using its own characteristics to relieve the pressure generated when the third slider 316 moves. The spring 318 installed on the outer side of the damper 317 increases the damper 317's ability to relieve pressure.

[0032] One specific application of this embodiment is:

[0033] When staff need to use the equipment, they first pass the object to be inspected through the hole in the protective shell 201, and then place one side of the object on the outside of the electric push rod 301. Next, the motor 202 is started, causing the connecting shaft 203 to rotate, which in turn rotates the first gear 204. The first gear 204 meshes with the second gear 205, causing the first gear 204 to push the second gear 205 to rotate. The rotation of the second gear 205 pushes multiple first positioning blocks 207 to move. Multiple arc-shaped grooves 206 inside the second gear 205 limit the movement range of the first positioning blocks 207. Simultaneously, during the movement of the first positioning blocks 207, their direction of movement is controlled by the second positioning rod 301. The limiting groove 209 inside block 208 restricts the first positioning block 207 to move only vertically, allowing it to push the clamping plate 210 to move outwards from the object. The remaining clamping plates 210 move in the same way. When multiple clamping plates 210 contact the surface of the object, they clamp the object. Then, the electric push rod 301 is activated to extend automatically, pushing the outermost multiple first connecting blocks 302 to move. The first connecting blocks 302 push the first support rod 303 to move, simultaneously moving the support plate 304. At the same time, a limiting block 307 is pre-installed on the outer side of the support plate 304, and the limiting block 307 is confined within the connecting block 1. Within the groove 308 provided in the part, the movement range of the support plate 304 is limited by the groove 308. This allows the support plate 304 to pull the first support rod 303, causing it to rotate around the outer side of the first connecting block 302, while simultaneously moving the reinforcing rod 319. The movement of the reinforcing rod 319 pulls the second support rod 305, causing it to rotate around the outer side of the second connecting block 306, while simultaneously supporting the bottom of the support plate 304. This allows the support plate 304 to smoothly push the arc-shaped top plate 310 into contact with the inner wall of the object. After the arc-shaped top plate 310 contacts the object, it moves towards the support plate 304, and its movement range is limited by the telescopic rod 309. At the same time, the arc-shaped top plate 310 pushes multiple first sliders 313 to move. The movement of the first slider 313 pushes the first connecting rod 312 to rotate around the outside of the fixed block 311, while simultaneously pushing the first slider 313 to move along the outside of the arc-shaped top plate 310. During the movement of the arc-shaped top plate 310, the two second sliders 314 near the center are also pushed to move, causing the second sliders 314 to push the second connecting rod 315 to rotate, while simultaneously pushing the second sliders 314 and the third slider 316 at both ends to move in opposite directions. Since the second connecting rod 315 intersects with the first connecting rod 312, the second connecting rod 315 increases the support force of the first connecting rod 312 on the arc-shaped top plate 310. Meanwhile, the movement of the third slider 316 compresses the damper 317.The damper 317 is used to alleviate the pressure generated when the third slider 316 moves. When compressed, the damper 317 automatically compresses the outer spring 318, and the elasticity of the spring 318, in conjunction with the damper 317, alleviates the pressure and vibration generated when the third slider 316 moves.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A piston cylinder measuring fixture capable of quick clamping, comprising a connecting block (1), characterized in that: Several protective plates (101) are fixedly connected to the top outer wall of the connecting block (1). The outer wall of the connecting block (1) is provided with a clamping mechanism (2), the clamping mechanism (2) includes a protective shell (201), the outer wall of the protective shell (201) is fixedly connected to the outer wall of the connecting block (1), the inner wall of the protective shell (201) is fixedly connected to a motor (202), the output end of the motor (202) is fixedly connected to a connecting shaft (203) through a coupling, the outer wall of the connecting shaft (203) is fixedly connected to a first gear (204), and the outer wall of the first gear (204) is meshed with a second gear (…). The inner wall of the second gear (205) is provided with a plurality of arc-shaped grooves (206), and the inner wall of the plurality of arc-shaped grooves (206) is slidably connected to a first positioning block (207). The outer wall of the first positioning block (207) is fixedly connected to a clamping plate (210). The inner wall of the protective shell (201) is fixedly connected to a plurality of second positioning blocks (208). The inner wall of the second positioning block (208) is provided with a plurality of limiting grooves (209). The outer wall of the connecting block (1) is provided with a fixing mechanism (3).

2. The piston cylinder measuring fixture capable of rapid clamping according to claim 1, characterized in that, The outer wall of the first gear (204) is rotatably connected to the inner wall of the protective shell (201), the outer wall of the second gear (205) is rotatably connected to the inner wall of the protective shell (201), and the outer wall of the first positioning block (207) is slidably connected to the inner wall of the limiting groove (209).

3. The piston cylinder measuring fixture capable of rapid clamping according to claim 2, characterized in that, The fixing mechanism (3) includes an electric push rod (301), the outer wall of which is fixedly connected to the outer wall of the connecting block (1). A plurality of first connecting blocks (302) are fixedly connected to the outer wall of the electric push rod (301) away from the connecting block (1). A first support rod (303) is rotatably connected to the outer wall of the plurality of first connecting blocks (302). A support plate (304) is rotatably connected to the outer wall of the first support rod (303) away from the first connecting block (302). A second support rod (305) is rotatably connected to the bottom outer wall of the support plate (304).

4. The piston cylinder measuring fixture capable of quick clamping according to claim 3, characterized in that, The outer wall of the second support rod (305) away from the support plate (304) is rotatably connected to a second connecting block (306). The outer wall of the second connecting block (306) is fixedly connected to the outer wall of the electric push rod (301). The outer wall of the first support rod (303) is rotatably connected to a reinforcing rod (319). The outer wall of the reinforcing rod (319) is rotatably connected to the outer wall of the second support rod (305).

5. The piston cylinder measuring fixture capable of rapid clamping according to claim 4, characterized in that, The outer wall of the support plate (304) is fixedly connected to a limiting block (307), and the inner wall of the connecting block (1) is provided with a plurality of sliding grooves (308). The outer wall of the limiting block (307) is slidably connected to the inner wall of the sliding groove (308).

6. The piston cylinder measuring fixture capable of quick clamping according to claim 5, characterized in that, The outer wall of the support plate (304) is fixedly connected to a plurality of telescopic rods (309). An arc-shaped top plate (310) is fixedly connected to the outer wall of the telescopic rod (309) away from the support plate (304). A fixing block (311) is fixedly connected to the outer wall of the support plate (304). A plurality of first connecting rods (312) are rotatably connected to the outer wall of the fixing block (311). A first slider (313) is rotatably connected to the outer wall of the first connecting rod (312) away from the fixing block (311).

7. The piston cylinder measuring fixture capable of quick clamping according to claim 6, characterized in that, The outer wall of the first slider (313) is slidably connected to the outer wall of the arc-shaped top plate (310). The outer wall of the arc-shaped top plate (310) is slidably connected to a plurality of second sliders (314). The outer walls of the plurality of second sliders (314) are rotatably connected to a second connecting rod (315). The outer wall of the second connecting rod (315) away from the second sliders (314) is rotatably connected to a third slider (316).

8. The piston cylinder measuring fixture capable of quick clamping according to claim 7, characterized in that, A damper (317) is fixedly connected to the outer wall of the third slider (316). The outer wall of the damper (317) is fixedly connected to the outer wall of the fixed block (311). A spring (318) is fixedly connected to the outer wall of the damper (317). The outer wall of the spring (318) is fixedly connected to the outer wall of the third slider (316).

Images