Stent product deformation detection tool and device

Abstract

The present application relates to caliper detection technical field, specifically to a kind of support product deformation detection tool and device, the tool includes bottom plate, vertical plate and datum plane positioning assembly, one side of vertical plate is equipped with three groups of lever cylinder in triangular distribution, datum plane positioning assembly is arranged in the area surrounded by three groups of lever cylinder;Datum plane positioning assembly includes support and mounting seat, three groups of mounting seat are fixed at the front end surface of vertical plate, and are in triangular distribution, each mounting seat is slidably equipped with top rod, support is fixed at the rear end surface of vertical plate, three groups of second distance measuring sensors are installed on support, three groups of second distance measuring sensors are set up one-to-one with three groups of top rod, each second distance measuring sensor is linked with a group of lever cylinder to form control respectively.The datum plane positioning system of the present application can be dynamically adjusted, the position data of three top rods are detected in real time and compared with standard value, the clamping force of lever cylinder is linked and controlled, and the adaptive adjustment to product datum plane is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of caliper detection, and particularly to a deformation detection tooling and device for bracket-like products. Background Technique

[0002] The caliper bracket is a core component in the automotive braking system and the mechanical transmission system. Its structural accuracy directly affects the assembly accuracy, braking stability, and service life of the caliper. The caliper bracket usually has an irregular special-shaped structure and has key features such as inner holes, reference planes, and mounting surfaces. During the processing and transportation processes, due to factors such as cutting stress, collision, and temperature change, it is prone to generate small deformations. If the deformation amount exceeds the allowable range, it will cause the caliper assembly to jam and the braking gap to be abnormal, and in severe cases, it will cause safety hazards.

[0003] Currently, the clamping tooling for the caliper bracket often sets a fixed backing plate for fitting with the reference plane of the workpiece to be detected. If the reference plane of the workpiece to be detected itself is deformed, it cannot fit well with the backing plate, resulting in positioning deviation of the reference plane, and further affecting the accuracy of subsequent deformation detection, and it is impossible to accurately identify whether the workpiece has exceeded deformation. At the same time, the existing tooling mostly adopts a fixed clamping method, which cannot adaptively adjust the clamping force and positioning posture according to the actual state of the workpiece's reference plane. During the clamping process, it is easy to cause secondary damage to the workpiece, and the adaptability is poor, making it difficult to meet the detection requirements of caliper brackets under different specifications and different deformation states. Summary of the Invention

[0004] To solve the problems existing in the prior art, the present invention proposes a deformation detection tooling and device for bracket-like products to solve the problems of inaccurate positioning and large detection errors caused by the deformation of the reference plane of bracket-like products in the prior art.

[0005] To solve the above technical problems, the present invention provides a deformation detection tooling for bracket-like products, including a bottom plate and a reference plane positioning component. A vertical plate is installed on one side of the top of the bottom plate; three lever cylinders distributed in a triangle are installed on the front end face of the vertical plate; the reference plane positioning component is arranged in the area surrounded by the three lever cylinders; the reference plane positioning component includes a bracket and three mounting seats. The three mounting seats are fixed on the front end face of the vertical plate and are distributed in a triangle. Each mounting seat is slidably equipped with a ejector rod. The axis of the ejector rod is perpendicular to the vertical plate. The bracket is fixed on the rear end face of the vertical plate. Three second distance measuring sensors are installed on the bracket. The three second distance measuring sensors are arranged corresponding to the three ejector rods. Each second distance measuring sensor forms a linkage control with an adjacent lever cylinder respectively.

[0006] Preferably, it further includes a support positioning component, which is positioned towards the actuating end of the lever cylinder; the support positioning component includes two sets of opposing side support positioning components, each set of side support positioning components including a base mounted on the top of the base plate; a rotary pressing cylinder is mounted on the upper part of the base away from the other set of side support positioning components, and a floating cylinder is mounted on the lower part of the base near the other set of side support positioning components; a pressure rod is provided on the movable end of the rotary pressing cylinder, and a first ranging sensor is fixed on one side of the base by a support frame, the first ranging sensor being located above the pressure rod, and the first ranging sensor forming a linkage control with the floating cylinder and the rotary pressing cylinder in the same set of side support positioning components.

[0007] Preferably, the upright plate is slidably mounted on the top of the base plate, and a first driving cylinder is provided at one end of the base plate, the output end of the first driving cylinder being fixedly connected to the upright plate.

[0008] Preferably, the base is slidably mounted on the top of the base plate, and a second drive cylinder is provided on both sides of the base plate, with the output end of the second drive cylinder fixedly connected to the corresponding base.

[0009] Preferably, the base has a support plate fixed between the floating cylinder and the rotary pressing cylinder, and the top of the support plate is an inclined surface.

[0010] Preferably, the front end face of the upright plate is also equipped with two sets of internal expansion locking components, and the two sets of internal expansion locking components are distributed on both sides of the reference surface positioning component.

[0011] Preferably, the internal expansion locking assembly includes an expansion sleeve body, a cone head, and an outer ring seat; the expansion sleeve body is fixed to the front end face of the upright plate, and the front end of the expansion sleeve body is provided with multiple sets of circumferentially distributed expansion claws, the gap between adjacent expansion claws forming a guide groove; the cone head is slidably assembled in the front end of the inner cavity of the expansion sleeve body, and the inner circumferential surface of the expansion claw is a conical surface adapted to the outer surface of the cone head; the outer ring seat is sleeved on the outside of the expansion sleeve body, and the rear end of the cone head is fixed with an inner ring seat, the inner ring seat being fixedly connected to the outer ring seat by multiple sets of support rods arranged in corresponding guide grooves.

[0012] Preferably, a tailstock is fixed to the rear end of the inner cavity of the expansion sleeve body, a spindle is axially fixed to one end of the tailstock, and the cone head is provided with a guide cavity that extends axially and slides with the spindle; a second spring is sleeved on the spindle, and the two ends of the second spring abut against the rear end face of the tailstock and the cone head respectively; a locking nut for abutting against the front end face of the cone head is connected to one end of the spindle.

[0013] Preferably, the upright plate has three sets of through holes, the push rod is slidably assembled with the corresponding through holes, one end of the push rod facing away from the upright plate is provided with a contact, the other end of the push rod is connected to an adjusting nut for abutting against the upright plate, the mounting base has a through groove that runs through the front and rear direction and is adapted to the contact, the push rod is fitted with a first spring, and the two ends of the first spring abut against the contact and the front end face of the upright plate respectively.

[0014] The present invention also provides a deformation detection device for bracket products, which has the deformation detection fixture for bracket products described above.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are:

[0016] This invention employs three sets of triangularly distributed push rods in conjunction with a second ranging sensor to construct a dynamically adjustable reference surface positioning system. By real-time detection of the position data of the three push rods and comparison with standard values, the clamping force of the lever cylinder is controlled in a coordinated manner, achieving adaptive adjustment of the product reference surface. When the product reference surface is undeformed, the three push rods coincide with the preset standard position, forming a standard positioning reference. When the product reference surface is deformed, the plane currently determined by the three push rods is used as the new reference surface, avoiding positioning errors and clamping stress caused by product deformation, and significantly improving detection accuracy and consistency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 A schematic diagram of the datum plane positioning component;

[0020] Figure 3 This is a schematic diagram of the installation of the push rod;

[0021] Figure 4 This is a schematic diagram of the internal expansion locking assembly;

[0022] Figure 5 This is a cross-sectional view of the internal expansion locking assembly;

[0023] Figure 6 This is a schematic diagram of the clamping mechanism of the caliper bracket.

[0024] Explanation of reference numerals in the attached drawings: 1-Base plate, 2-Upright plate, 3-Internal expansion locking assembly, 4-Lever cylinder, 5-Mounting seat, 6-First ranging sensor, 7-Pressure rod, 8-Floating cylinder, 9-Support plate, 10-Base, 11-Rotating downward pressing cylinder, 12-Second ranging sensor, 13-Top rod, 14-Bracket, 15-Contact, 16-First spring, 17-Through groove, 19-Through hole, 20-Adjusting nut, 21-Expansion sleeve body, 22-Guide groove, 23-Expansion claw, 24-Cone, 25-Mandrel, 26-Locking nut, 27-Outer ring seat, 28-Guide cavity, 29-Support rod, 30-Inner ring seat, 31-Second spring, 32-Tail seat. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Those skilled in the art will recognize that the invention can be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of it.

[0026] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the invention. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] like Figure 1 As shown, the fixture on the deformation detection device for caliper bracket products consists of a base plate 1, a reference surface positioning assembly, and a support positioning assembly. A vertical plate 2 is mounted on one side of the top of the base plate 1. Three sets of lever cylinders 4 arranged in a triangular pattern are fixedly mounted on the front end of the vertical plate 2. The reference surface positioning assembly is positioned at the center of the area enclosed by these three sets of lever cylinders 4. The support positioning assembly is mounted on the other side of the top of the base plate 1, facing the actuating end of the lever cylinders 4, forming a counter-positioning with the reference surface positioning assembly to ensure the stability of the workpiece after placement.

[0028] like Figure 2 and Figure 3As shown in the figure, the reference plane positioning component includes a mounting base 5, a second distance measuring sensor 12, a push rod 13 and a bracket 14. Three groups of through holes 19 penetrating the front and rear end faces of the vertical plate 2 are provided on the vertical plate 2, and the three groups of through holes 19 are distributed in a triangular shape. There are three mounting bases 5, and all are fixedly installed on the front end face of the vertical plate 2. The three mounting bases 5 and the three through holes 19 are coaxially arranged in one-to-one correspondence.

[0029] The push rod 13 is sleeved in the corresponding through hole 19 to form a sliding assembly, and the axis of the push rod 13 is perpendicular to the vertical plate 2 and can slide reciprocally along the axial direction of the through hole 19. A contact head 15 is provided at one end of the push rod 13 facing away from the vertical plate 2, and an adjusting nut 20 for abutting against the rear end face of the vertical plate 2 is connected to the other end of the push rod 13. By screwing the adjusting nut 20, the initial extended length of the push rod 13 can be adjusted, or the end portions of the contact heads 15 of the three push rods 13 can be made to be in the same plane in the unloaded state.

[0030] A through groove 17 penetrating in the front and rear directions is provided on the mounting base 5, and the through groove 17 is adapted to the outer contour of the contact head 15. When the push rod 13 retracts, the contact head 15 can be partially or completely embedded in the through groove 17 to avoid interference with the moving end of the lever cylinder 4.

[0031] A first spring 16 is sleeved on the push rod 13, and both ends of the first spring 16 respectively abut between the contact head 15 and the front end face of the vertical plate 2. The first spring 16 can provide a continuous forward driving force for the push rod 13 to ensure that the contact head 15 is always in close contact with the product reference plane during the product positioning process and ensure the reliability of the positioning.

[0032] The number of the second distance measuring sensors 12 is three groups, and the three groups of second distance measuring sensors 12 are fixedly installed on the rear end face of the vertical plate 2 through the bracket 14. The three groups of second distance measuring sensors 12 and the three groups of push rods 13 are arranged in one-to-one correspondence, and each group of second distance measuring sensors 12 respectively forms a linkage control with an adjacent group of lever cylinders 4. The linkage logic is: the second distance measuring sensor 12 detects the position deviation of the push rod 13, synchronously feeds back a signal to the corresponding lever cylinder 4, and adjusts its clamping force.

[0033] As Figure 1 shown in the figure, the support positioning component includes two groups of side support positioning components distributed oppositely, and each group of side support positioning components includes a base 10 installed on the top of the bottom plate 1. A rotary pressing cylinder 11 for pressing the workpiece downward is fixedly installed on one side of the upper part of the base 10 away from the other group of side support positioning components. A floating cylinder 8 for jacking up the workpiece upward is installed on one side of the lower part of the base 10 close to the other group of side support positioning components.

[0034] In each set of side support positioning components, a support plate 9 is fixedly installed on the base 10. The support plate 9 is located between the floating cylinder 8 and the rotary pressing cylinder 11, and the top of the support plate 9 is inclined. The sides of caliper bracket products are often not vertical planes, but inclined or irregularly shaped surfaces with a certain angle. Setting the top of the support plate 9 as an inclined surface can provide more stable support. At the same time, the contact between the inclined surface and the side wall of the product can also play an auxiliary orientation role, so that the product can be more accurately placed in the predetermined position.

[0035] The movable end of the rotary pressing cylinder 11 is provided with a pressure rod 7, and the pressure rod 7 is provided with detection holes penetrating its upper and lower ends. A first ranging sensor 6 with its detection end facing downward is fixed to one side of the base 10 by a support frame. The first ranging sensor 6 is located above the pressure rod 7, and its detection end is directly opposite the detection hole.

[0036] The first ranging sensor 6, together with the floating cylinder 8 and the rotary pressing cylinder 11 in the same set of side support positioning components, forms a linkage control. The linkage logic is as follows: when the first ranging sensor 6 detects through the detection hole that the workpiece has been lifted to the preset height by the floating cylinder 8, it immediately sends a feedback signal to the rotary pressing cylinder 11 to control its action and drive the pressure rod 7 to press the workpiece down; if a deviation in the workpiece height is detected, an adjustment signal is simultaneously sent to the floating cylinder 8 and the rotary pressing cylinder 11 to fine-tune their lifting height to ensure that the workpiece positioning posture meets the detection requirements.

[0037] To improve the versatility and adaptability of the tooling, this embodiment features an adjustable base 10 and upright plate 2 to meet the positioning requirements of caliper bracket products of different specifications.

[0038] The upright plate 2 is slidably assembled with the base plate 1 via a linear guide rail assembly laid along the width direction of the base plate 1. A first drive cylinder is fixedly installed at one end of the base plate 1. The output end of the first drive cylinder is fixedly connected to the upright plate 2. Its working principle is as follows: when the first drive cylinder extends and retracts, it drives the upright plate 2 to move back and forth along the linear guide rail assembly, thereby adjusting the relative distance between the reference surface positioning assembly and the support positioning assembly, and adapting to caliper bracket products of different length specifications.

[0039] Two sets of bases 10 are slidably assembled with the base plate 1 via linear guide rail assemblies laid along the length of the base plate 1. A second drive cylinder is fixedly installed on both sides of the base plate 1. The output end of the second drive cylinder is fixedly connected to the corresponding base 10. The working principle is as follows: when the second drive cylinders on both sides are activated, they drive the bases 10 on both sides to move synchronously in opposite directions, thereby adjusting the distance between the two sets of side support positioning assemblies, so that the side support positioning assemblies on both sides are accurately clamped at the designated positions on both sides of the product, adapting to caliper bracket products of different width specifications.

[0040] The detailed working steps and principles of caliper bracket product positioning are as follows.

[0041] Tighten the adjusting nut 20 of each set of top rods 13 so that the ends of the contacts 15 of the three sets of top rods 13 are on the same plane, and complete the zero-point calibration of the second ranging sensor 12.

[0042] The caliper bracket product to be tested is placed in the support area formed by the two sets of support plates 9. The first drive cylinder is activated, which drives the upright plate 2 to move, so that the three sets of push rods 13 contacts 15 of the reference surface positioning component come into contact with the A surface (set reference surface) of the product.

[0043] Three sets of second ranging sensors 12 synchronously detect the actual position of the corresponding top rod 13 after it is pressed, and compare the three sets of actual position data with the preset standard values ​​respectively to calculate the deviation value. Based on the deviation value, the PLC controller sends a control signal to the corresponding group of lever cylinders 4 in real time to adjust the clamping force of the lever cylinders 4. The reaction force of the top rod 13 drives the bracket product to adjust its posture.

[0044] Reference plane determination: If all three sets of deviation values ​​are within the preset floating range, it indicates that the current surface A has not deformed or the deformation is within the allowable range. The actual position of the three push rods 13 coincides with the preset position. The plane determined by this coincident position, i.e., surface A itself, is used as the positioning reference plane for subsequent testing. If any deviation value exceeds the preset floating range, it indicates that the deformation of surface A exceeds the allowable range. Surface A is no longer an ideal planar structure. At this time, each lever cylinder 4 adjusts the clamping force to make the deviation values ​​of the three push rods 13 tend to be evenly distributed. Record the position at this time. Since three points that are not on the same straight line can determine a unique plane, the plane currently determined by the ends of the three push rods 13 is used as the positioning reference plane of the caliper bracket product, rather than the deformed surface A itself as the reference.

[0045] Once the reference plane is determined, the first ranging sensor 6, based on the current detection height, controls the floating cylinder 8 and the rotary pressing cylinder 11 to perform side support and clamping positioning of the caliper bracket product.

[0046] To accommodate caliper bracket products with internal bores, such as Figure 1 As shown, two sets of internal expansion locking components 3 are also installed on the front end face of the upright plate 2. The two sets of internal expansion locking components 3 are distributed on both sides of the reference surface positioning component.

[0047] like Figure 4 and Figure 5 As shown, the internal expansion locking assembly 3 includes an expansion sleeve body 21, a cone head 24, and an outer ring seat 27. The expansion sleeve body 21 is fixedly installed on the front end face of the upright plate 2. The front end of the expansion sleeve body 21 is provided with multiple sets of circumferentially evenly distributed expansion claws 23, and the gap between adjacent expansion claws 23 forms a guide groove 22.

[0048] The cone head 24 is slidably fitted onto the front end of the inner cavity of the expansion sleeve body 21. The inner circumferential surface of the expansion claw 23 is a tapered surface that matches the outer surface of the cone head 24, ensuring that the expansion claw 23 can be opened when the cone head 24 moves. The outer ring seat 27 is sleeved on the outside of the expansion sleeve body 21. The rear end of the cone head 24 is fixed with an inner ring seat 30. The inner ring seat 30 is fixedly connected to the outer ring seat 27 through multiple sets of support rods 29 arranged in corresponding guide grooves 22.

[0049] A tailstock 32 is fixedly installed at the rear end of the inner cavity of the expansion sleeve body 21. A spindle 25 is axially fixed at one end of the tailstock 32. The cone head 24 is provided with a guide cavity 28 that is axially connected and slides with the spindle 25. A second spring 31 is sleeved on the spindle 25. The two ends of the second spring 31 abut against the rear end face of the tailstock 32 and the cone head 24, respectively. A locking nut 26 for abutting against the front end face of the cone head 24 is connected to one end of the spindle 25.

[0050] like Figure 6 As shown, the workpiece to be tested is placed in the support area formed by two sets of support plates 9, and the internal expansion locking assembly 3 extends entirely into the inner hole of the workpiece. With the pressing action of the lever cylinder 4, the workpiece is gradually pushed towards the vertical plate 2. The inner hole end face of the workpiece applies a backward thrust to the outer ring seat 27. Since the outer ring seat 27 is fixedly connected to the inner ring seat 30 through the support rod 29, and the inner ring seat 30 is fixed to the rear end of the cone head 24, the thrust is transmitted to the cone head 24, causing the cone head 24 to overcome the resistance of the second spring 31 and slide backward along the spindle 25. The outer surface of the cone head 24 is a conical surface, and the inner circumferential surface of the expansion claw 23 is also a matching conical surface. When the cone head 24 moves backward, the radial thickness of the conical surface gradually increases, generating a uniform radial spreading force on the expansion claw 23, causing the expansion claw 23 to expand radially outward until the outer surface of the expansion claw 23 tightly abuts against the inner hole wall of the workpiece. The radial friction between the expansion claw 23 and the inner hole wall is used to lock and position the inner hole of the workpiece, preventing the workpiece from rotating or shifting during the inspection process.

[0051] The embodiments described above are not exhaustive and do not limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A deformation detection fixture for bracket-type products, characterized in that: The system includes a base plate (1) and a reference surface positioning assembly. A vertical plate (2) is installed on one side of the top of the base plate (1). Three sets of lever cylinders (4) arranged in a triangular pattern are installed on the front end face of the vertical plate (2). The reference surface positioning assembly is arranged in the area enclosed by the three sets of lever cylinders (4). The reference surface positioning assembly includes a bracket (14) and three sets of mounting seats (5). The three sets of mounting seats (5) are fixed on the front end face of the vertical plate (2) and are arranged in a triangular pattern. Each set of mounting seats (5) is slidably fitted with a top rod (13). The axis of the top rod (13) is arranged perpendicular to the vertical plate (2). The bracket (14) is fixed on the rear end face of the vertical plate (2). Three sets of second distance sensors (12) are installed on the bracket (14). The three sets of second distance sensors (12) are set one-to-one with the three sets of top rods (13). Each set of second distance sensors (12) forms a linkage control with an adjacent set of lever cylinders (4). During the reference plane positioning, the reference plane of the bracket product is abutted against the ends of the three top rods (13). The three sets of second distance sensors (12) synchronously detect the actual position of the corresponding top rod (13). The three sets of actual position data are compared with the standard value respectively. The clamping force of the corresponding lever cylinder (4) is adjusted in real time according to the comparison deviation. The bracket product is driven to adjust its posture by the reaction force of the top rod (13), thus completing the reference plane positioning of the bracket product.

2. The deformation detection fixture for bracket products according to claim 1, characterized in that: It also includes a support positioning component, which is positioned toward the moving end of the lever cylinder (4); the support positioning component includes two sets of side support positioning components arranged opposite each other, each set of side support positioning components includes a base (10) installed on the top of the base plate (1); a rotary pressing cylinder (11) is installed on the upper part of the base (10) away from the other set of side support positioning components, and a floating cylinder (8) is installed on the lower part of the base (10) near the other set of side support positioning components; a pressure rod (7) is provided on the moving end of the rotary pressing cylinder (11), and a first distance sensor (6) is fixed on one side of the base (10) by a support frame. The first distance sensor (6) is located above the pressure rod (7), and the first distance sensor (6) forms a linkage control with the floating cylinder (8) and the rotary pressing cylinder (11) in the same set of side support positioning components.

3. The deformation detection fixture for bracket-type products according to claim 2, characterized in that: The upright plate (2) is slidably mounted on the top of the base plate (1). A first driving cylinder is provided at one end of the base plate (1), and the output end of the first driving cylinder is fixedly connected to the upright plate (2).

4. The deformation detection fixture for bracket-type products according to claim 3, characterized in that: The base (10) is slidably mounted on the top of the base plate (1). A second driving cylinder is provided on both sides of the base plate (1). The output end of the second driving cylinder is fixedly connected to the corresponding base (10).

5. The deformation detection fixture for bracket-type products according to claim 4, characterized in that: A support plate (9) is fixed on the base (10). The support plate (9) is located between the floating cylinder (8) and the rotating pressing cylinder (11). The top of the support plate (9) is an inclined surface.

6. The deformation detection fixture for bracket-type products according to claim 1, characterized in that: The front end face of the upright plate (2) is also equipped with two sets of internal expansion locking components (3), which are distributed on both sides of the reference surface positioning component.

7. The deformation detection fixture for bracket-type products according to claim 6, characterized in that: The internal expansion locking assembly (3) includes an expansion sleeve body (21), a cone head (24), and an outer ring seat (27). The expansion sleeve body (21) is fixed to the front end face of the upright plate (2). The front end of the expansion sleeve body (21) is provided with multiple sets of circumferentially distributed expansion claws (23), and the gap between adjacent expansion claws (23) forms a guide groove (22). The cone head (24) is slidably assembled in the front end of the inner cavity of the expansion sleeve body (21). The inner circumferential surface of the expansion claw (23) is a conical surface adapted to the outer surface of the cone head (24). The outer ring seat (27) is sleeved on the outside of the expansion sleeve body (21). The rear end of the cone head (24) is fixed with an inner ring seat (30). The inner ring seat (30) is fixedly connected to the outer ring seat (27) by multiple sets of support rods (29) arranged in the corresponding guide grooves (22).

8. The deformation detection fixture for bracket-type products according to claim 7, characterized in that: The rear end of the inner cavity of the expansion sleeve body (21) is fixed with a tailstock (32), and a spindle (25) is axially fixed at one end of the tailstock (32). The cone (24) is provided with a guide cavity (28) that runs through the axis and slides with the spindle (25). The spindle (25) is fitted with a second spring (31), and the two ends of the second spring (31) abut against the rear end face of the tailstock (32) and the cone (24) respectively. One end of the spindle (25) is connected to a locking nut (26) for abutting against the front end face of the cone (24).

9. The deformation detection fixture for bracket-type products according to claim 1, characterized in that: The upright plate (2) has three sets of through holes (19). The top rod (13) is slidably assembled with the corresponding through holes (19). One end of the top rod (13) facing away from the upright plate (2) is provided with a contact (15). The other end of the top rod (13) is connected to an adjusting nut (20) for abutting against the upright plate (2). The mounting base (5) has a through groove (17) that runs through the front and rear direction and is adapted to the contact (15). The top rod (13) is fitted with a first spring (16). The two ends of the first spring (16) abut against the contact (15) and the front end face of the upright plate (2) respectively.

10. A deformation detection device for bracket-type products, characterized in that, The deformation detection device for bracket products has the deformation detection fixture for bracket products as described in any one of claims 1-9.

Images